Rename some imsg bits to make namespace collisions less likely buf to

ibuf, buf_read to ibuf_read, READ_BUF_SIZE to IBUF_READ_SIZE.

ok henning gilles claudio jacekm deraadt

99 files changed, 1330 insertions, 1330 deletions

diff --git a/usr.sbin/bgpctl/bgpctl.c b/usr.sbin/bgpctl/bgpctl.c
index a4e80febba7..ddf0c69d524 100644
--- a/usr.sbin/bgpctl/bgpctl.c
+++ b/usr.sbin/bgpctl/bgpctl.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: bgpctl.c,v 1.159 2010/05/03 13:11:41 claudio Exp $ */
+/*	$OpenBSD: bgpctl.c,v 1.160 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2003 Henning Brauer <henning@openbsd.org>
@@ -168,7 +168,7 @@ main(int argc, char *argv[])
 		break;
 	case SHOW_FIB:
 		if (!res->addr.aid) {
-			struct buf	*msg;
+			struct ibuf	*msg;
 			sa_family_t	 af;
 
 			af = aid2af(res->aid);
diff --git a/usr.sbin/bgpd/buffer.c b/usr.sbin/bgpd/buffer.c
index 0d8a465b8f9..3d9fdba50a3 100644
--- a/usr.sbin/bgpd/buffer.c
+++ b/usr.sbin/bgpd/buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: buffer.c,v 1.45 2009/09/15 10:54:59 jacekm Exp $	*/
+/*	$OpenBSD: buffer.c,v 1.46 2010/05/26 13:56:07 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -28,16 +28,16 @@
 
 #include "imsg.h"
 
-int	buf_realloc(struct buf *, size_t);
-void	buf_enqueue(struct msgbuf *, struct buf *);
-void	buf_dequeue(struct msgbuf *, struct buf *);
+int	ibuf_realloc(struct ibuf *, size_t);
+void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
-struct buf *
-buf_open(size_t len)
+struct ibuf *
+ibuf_open(size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
-	if ((buf = calloc(1, sizeof(struct buf))) == NULL)
+	if ((buf = calloc(1, sizeof(struct ibuf))) == NULL)
 		return (NULL);
 	if ((buf->buf = malloc(len)) == NULL) {
 		free(buf);
@@ -49,15 +49,15 @@ buf_open(size_t len)
 	return (buf);
 }
 
-struct buf *
-buf_dynamic(size_t len, size_t max)
+struct ibuf *
+ibuf_dynamic(size_t len, size_t max)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (max < len)
 		return (NULL);
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
 	if (max > 0)
@@ -67,7 +67,7 @@ buf_dynamic(size_t len, size_t max)
 }
 
 int
-buf_realloc(struct buf *buf, size_t len)
+ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
 
@@ -87,10 +87,10 @@ buf_realloc(struct buf *buf, size_t len)
 }
 
 int
-buf_add(struct buf *buf, const void *data, size_t len)
+ibuf_add(struct ibuf *buf, const void *data, size_t len)
 {
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (-1);
 
 	memcpy(buf->buf + buf->wpos, data, len);
@@ -99,12 +99,12 @@ buf_add(struct buf *buf, const void *data, size_t len)
 }
 
 void *
-buf_reserve(struct buf *buf, size_t len)
+ibuf_reserve(struct ibuf *buf, size_t len)
 {
 	void	*b;
 
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (NULL);
 
 	b = buf->buf + buf->wpos;
@@ -113,7 +113,7 @@ buf_reserve(struct buf *buf, size_t len)
 }
 
 void *
-buf_seek(struct buf *buf, size_t pos, size_t len)
+ibuf_seek(struct ibuf *buf, size_t pos, size_t len)
 {
 	/* only allowed to seek in already written parts */
 	if (pos + len > buf->wpos)
@@ -123,28 +123,28 @@ buf_seek(struct buf *buf, size_t pos, size_t len)
 }
 
 size_t
-buf_size(struct buf *buf)
+ibuf_size(struct ibuf *buf)
 {
 	return (buf->wpos);
 }
 
 size_t
-buf_left(struct buf *buf)
+ibuf_left(struct ibuf *buf)
 {
 	return (buf->max - buf->wpos);
 }
 
 void
-buf_close(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_close(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	buf_enqueue(msgbuf, buf);
+	ibuf_enqueue(msgbuf, buf);
 }
 
 int
-buf_write(struct msgbuf *msgbuf)
+ibuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t	n;
 
@@ -176,7 +176,7 @@ buf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_free(struct buf *buf)
+ibuf_free(struct ibuf *buf)
 {
 	free(buf->buf);
 	free(buf);
@@ -193,14 +193,14 @@ msgbuf_init(struct msgbuf *msgbuf)
 void
 msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 {
-	struct buf	*buf, *next;
+	struct ibuf	*buf, *next;
 
 	for (buf = TAILQ_FIRST(&msgbuf->bufs); buf != NULL && n > 0;
 	    buf = next) {
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
-			buf_dequeue(msgbuf, buf);
+			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
 			n = 0;
@@ -211,17 +211,17 @@ msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 void
 msgbuf_clear(struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
-		buf_dequeue(msgbuf, buf);
+		ibuf_dequeue(msgbuf, buf);
 }
 
 int
 msgbuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t		 n;
 	struct msghdr	 msg;
@@ -284,14 +284,14 @@ msgbuf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_enqueue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
 void
-buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 
@@ -299,5 +299,5 @@ buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
 		close(buf->fd);
 
 	msgbuf->queued--;
-	buf_free(buf);
+	ibuf_free(buf);
 }
diff --git a/usr.sbin/bgpd/imsg.c b/usr.sbin/bgpd/imsg.c
index 58fd1e27315..f6315cae39e 100644
--- a/usr.sbin/bgpd/imsg.c
+++ b/usr.sbin/bgpd/imsg.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.49 2010/04/07 18:09:39 nicm Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.50 2010/05/26 13:56:07 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -135,7 +135,7 @@ int
 imsg_compose(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, void *data, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf, type, peerid, pid, datalen)) == NULL)
 		return (-1);
@@ -154,7 +154,7 @@ int
 imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, const struct iovec *iov, int iovcnt)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	int		 i, datalen = 0;
 
 	for (i = 0; i < iovcnt; i++)
@@ -175,11 +175,11 @@ imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 /* ARGSUSED */
-struct buf *
+struct ibuf *
 imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	struct imsg_hdr	 hdr;
 
 	datalen += IMSG_HEADER_SIZE;
@@ -193,7 +193,7 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 	hdr.peerid = peerid;
 	if ((hdr.pid = pid) == 0)
 		hdr.pid = ibuf->pid;
-	if ((wbuf = buf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
+	if ((wbuf = ibuf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
 		return (NULL);
 	}
 	if (imsg_add(wbuf, &hdr, sizeof(hdr)) == -1)
@@ -203,18 +203,18 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 int
-imsg_add(struct buf *msg, void *data, u_int16_t datalen)
+imsg_add(struct ibuf *msg, void *data, u_int16_t datalen)
 {
 	if (datalen)
-		if (buf_add(msg, data, datalen) == -1) {
-			buf_free(msg);
+		if (ibuf_add(msg, data, datalen) == -1) {
+			ibuf_free(msg);
 			return (-1);
 		}
 	return (datalen);
 }
 
 void
-imsg_close(struct imsgbuf *ibuf, struct buf *msg)
+imsg_close(struct imsgbuf *ibuf, struct ibuf *msg)
 {
 	struct imsg_hdr	*hdr;
 
@@ -226,7 +226,7 @@ imsg_close(struct imsgbuf *ibuf, struct buf *msg)
 
 	hdr->len = (u_int16_t)msg->wpos;
 
-	buf_close(&ibuf->w, msg);
+	ibuf_close(&ibuf->w, msg);
 }
 
 void
diff --git a/usr.sbin/bgpd/imsg.h b/usr.sbin/bgpd/imsg.h
index 9fd3f2f4964..43564710bb2 100644
--- a/usr.sbin/bgpd/imsg.h
+++ b/usr.sbin/bgpd/imsg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.h,v 1.5 2010/04/27 21:04:04 nicm Exp $	*/
+/*	$OpenBSD: imsg.h,v 1.6 2010/05/26 13:56:07 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -18,12 +18,12 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define READ_BUF_SIZE		65535
+#define IBUF_READ_SIZE		65535
 #define IMSG_HEADER_SIZE	sizeof(struct imsg_hdr)
 #define MAX_IMSGSIZE		16384
 
-struct buf {
-	TAILQ_ENTRY(buf)	 entry;
+struct ibuf {
+	TAILQ_ENTRY(ibuf)	 entry;
 	u_char			*buf;
 	size_t			 size;
 	size_t			 max;
@@ -33,13 +33,13 @@ struct buf {
 };
 
 struct msgbuf {
-	TAILQ_HEAD(, buf)	 bufs;
+	TAILQ_HEAD(, ibuf)	 bufs;
 	u_int32_t		 queued;
 	int			 fd;
 };
 
-struct buf_read {
-	u_char			 buf[READ_BUF_SIZE];
+struct ibuf_read {
+	u_char			 buf[IBUF_READ_SIZE];
 	u_char			*rptr;
 	size_t			 wpos;
 };
@@ -51,7 +51,7 @@ struct imsg_fd {
 
 struct imsgbuf {
 	TAILQ_HEAD(, imsg_fd)	 fds;
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	int			 fd;
 	pid_t			 pid;
@@ -75,16 +75,16 @@ struct imsg {
 
 
 /* buffer.c */
-struct buf	*buf_open(size_t);
-struct buf	*buf_dynamic(size_t, size_t);
-int		 buf_add(struct buf *, const void *, size_t);
-void		*buf_reserve(struct buf *, size_t);
-void		*buf_seek(struct buf *, size_t, size_t);
-size_t		 buf_size(struct buf *);
-size_t		 buf_left(struct buf *);
-void		 buf_close(struct msgbuf *, struct buf *);
-int		 buf_write(struct msgbuf *);
-void		 buf_free(struct buf *);
+struct ibuf	*ibuf_open(size_t);
+struct ibuf	*ibuf_dynamic(size_t, size_t);
+int		 ibuf_add(struct ibuf *, const void *, size_t);
+void		*ibuf_reserve(struct ibuf *, size_t);
+void		*ibuf_seek(struct ibuf *, size_t, size_t);
+size_t		 ibuf_size(struct ibuf *);
+size_t		 ibuf_left(struct ibuf *);
+void		 ibuf_close(struct msgbuf *, struct ibuf *);
+int		 ibuf_write(struct msgbuf *);
+void		 ibuf_free(struct ibuf *);
 void		 msgbuf_init(struct msgbuf *);
 void		 msgbuf_clear(struct msgbuf *);
 int		 msgbuf_write(struct msgbuf *);
@@ -98,10 +98,10 @@ int	 imsg_compose(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 int	 imsg_composev(struct imsgbuf *, u_int32_t, u_int32_t,  pid_t,
 	    int, const struct iovec *, int);
-struct buf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
+struct ibuf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    u_int16_t);
-int	 imsg_add(struct buf *, void *, u_int16_t);
-void	 imsg_close(struct imsgbuf *, struct buf *);
+int	 imsg_add(struct ibuf *, void *, u_int16_t);
+void	 imsg_close(struct imsgbuf *, struct ibuf *);
 void	 imsg_free(struct imsg *);
 int	 imsg_flush(struct imsgbuf *);
 void	 imsg_clear(struct imsgbuf *);
diff --git a/usr.sbin/bgpd/mrt.c b/usr.sbin/bgpd/mrt.c
index 6fee4d2bd0d..95d2403f594 100644
--- a/usr.sbin/bgpd/mrt.c
+++ b/usr.sbin/bgpd/mrt.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mrt.c,v 1.67 2010/04/22 08:21:18 claudio Exp $ */
+/*	$OpenBSD: mrt.c,v 1.68 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2003, 2004 Claudio Jeker <claudio@openbsd.org>
@@ -32,20 +32,20 @@
 
 #include "mrt.h"
 
-int mrt_attr_dump(struct buf *, struct rde_aspath *, struct bgpd_addr *);
+int mrt_attr_dump(struct ibuf *, struct rde_aspath *, struct bgpd_addr *);
 int mrt_dump_entry_mp(struct mrt *, struct prefix *, u_int16_t,
     struct rde_peer*);
 int mrt_dump_entry(struct mrt *, struct prefix *, u_int16_t, struct rde_peer*);
-int mrt_dump_hdr_se(struct buf **, struct peer *, u_int16_t, u_int16_t,
+int mrt_dump_hdr_se(struct ibuf **, struct peer *, u_int16_t, u_int16_t,
     u_int32_t, int);
-int mrt_dump_hdr_rde(struct buf **, u_int16_t type, u_int16_t, u_int32_t);
+int mrt_dump_hdr_rde(struct ibuf **, u_int16_t type, u_int16_t, u_int32_t);
 int mrt_open(struct mrt *, time_t);
 
 #define DUMP_BYTE(x, b)							\
 	do {								\
 		u_char		t = (b);				\
-		if (buf_add((x), &t, sizeof(t)) == -1) {		\
-			log_warnx("mrt_dump1: buf_add error");		\
+		if (ibuf_add((x), &t, sizeof(t)) == -1) {		\
+			log_warnx("mrt_dump1: ibuf_add error");		\
 			goto fail;					\
 		}							\
 	} while (0)
@@ -54,8 +54,8 @@ int mrt_open(struct mrt *, time_t);
 	do {								\
 		u_int16_t	t;					\
 		t = htons((s));						\
-		if (buf_add((x), &t, sizeof(t)) == -1) {		\
-			log_warnx("mrt_dump2: buf_add error");		\
+		if (ibuf_add((x), &t, sizeof(t)) == -1) {		\
+			log_warnx("mrt_dump2: ibuf_add error");		\
 			goto fail;					\
 		}							\
 	} while (0)
@@ -64,8 +64,8 @@ int mrt_open(struct mrt *, time_t);
 	do {								\
 		u_int32_t	t;					\
 		t = htonl((l));						\
-		if (buf_add((x), &t, sizeof(t)) == -1) {		\
-			log_warnx("mrt_dump3: buf_add error");		\
+		if (ibuf_add((x), &t, sizeof(t)) == -1) {		\
+			log_warnx("mrt_dump3: ibuf_add error");		\
 			goto fail;					\
 		}							\
 	} while (0)
@@ -73,8 +73,8 @@ int mrt_open(struct mrt *, time_t);
 #define DUMP_NLONG(x, l)						\
 	do {								\
 		u_int32_t	t = (l);				\
-		if (buf_add((x), &t, sizeof(t)) == -1) {		\
-			log_warnx("mrt_dump4: buf_add error");		\
+		if (ibuf_add((x), &t, sizeof(t)) == -1) {		\
+			log_warnx("mrt_dump4: ibuf_add error");		\
 			goto fail;					\
 		}							\
 	} while (0)
@@ -83,7 +83,7 @@ void
 mrt_dump_bgp_msg(struct mrt *mrt, void *pkg, u_int16_t pkglen,
     struct peer *peer)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 	int		 incoming = 0;
 	u_int16_t	 subtype = BGP4MP_MESSAGE;
 
@@ -98,20 +98,20 @@ mrt_dump_bgp_msg(struct mrt *mrt, void *pkg, u_int16_t pkglen,
 	    pkglen, incoming) == -1)
 		return;
 
-	if (buf_add(buf, pkg, pkglen) == -1) {
+	if (ibuf_add(buf, pkg, pkglen) == -1) {
 		log_warnx("mrt_dump_bgp_msg: buf_add error");
-		buf_free(buf);
+		ibuf_free(buf);
 		return;
 	}
 
-	buf_close(&mrt->wbuf, buf);
+	ibuf_close(&mrt->wbuf, buf);
 }
 
 void
 mrt_dump_state(struct mrt *mrt, u_int16_t old_state, u_int16_t new_state,
     struct peer *peer)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 	u_int16_t	 subtype = BGP4MP_STATE_CHANGE;
 
 	if (peer->capa.neg.as4byte)
@@ -124,15 +124,15 @@ mrt_dump_state(struct mrt *mrt, u_int16_t old_state, u_int16_t new_state,
 	DUMP_SHORT(buf, old_state);
 	DUMP_SHORT(buf, new_state);
 
-	buf_close(&mrt->wbuf, buf);
+	ibuf_close(&mrt->wbuf, buf);
 	return;
 
 fail:
-	buf_free(buf);
+	ibuf_free(buf);
 }
 
 int
-mrt_attr_dump(struct buf *buf, struct rde_aspath *a, struct bgpd_addr *nexthop)
+mrt_attr_dump(struct ibuf *buf, struct rde_aspath *a, struct bgpd_addr *nexthop)
 {
 	struct attr	*oa;
 	u_char		*pdata;
@@ -197,14 +197,14 @@ int
 mrt_dump_entry_mp(struct mrt *mrt, struct prefix *p, u_int16_t snum,
     struct rde_peer *peer)
 {
-	struct buf	*buf, *hbuf = NULL, *h2buf = NULL;
+	struct ibuf	*buf, *hbuf = NULL, *h2buf = NULL;
 	void		*bptr;
 	struct bgpd_addr addr, nexthop, *nh;
 	u_int16_t	 len;
 	u_int8_t	 p_len;
 	u_int8_t	 aid;
 
-	if ((buf = buf_dynamic(0, MAX_PKTSIZE)) == NULL) {
+	if ((buf = ibuf_dynamic(0, MAX_PKTSIZE)) == NULL) {
 		log_warn("mrt_dump_entry_mp: buf_dynamic");
 		return (-1);
 	}
@@ -213,9 +213,9 @@ mrt_dump_entry_mp(struct mrt *mrt, struct prefix *p, u_int16_t snum,
 		log_warnx("mrt_dump_entry_mp: mrt_attr_dump error");
 		goto fail;
 	}
-	len = buf_size(buf);
+	len = ibuf_size(buf);
 
-	if ((h2buf = buf_dynamic(MRT_BGP4MP_IPv4_HEADER_SIZE +
+	if ((h2buf = ibuf_dynamic(MRT_BGP4MP_IPv4_HEADER_SIZE +
 	    MRT_BGP4MP_IPv4_ENTRY_SIZE, MRT_BGP4MP_IPv6_HEADER_SIZE +
 	    MRT_BGP4MP_IPv6_ENTRY_SIZE + MRT_BGP4MP_MAX_PREFIXLEN)) == NULL) {
 		log_warn("mrt_dump_entry_mp: buf_dynamic");
@@ -237,9 +237,9 @@ mrt_dump_entry_mp(struct mrt *mrt, struct prefix *p, u_int16_t snum,
 		break;
 	case AID_INET6:
 		DUMP_SHORT(h2buf, AFI_IPv6);
-		if (buf_add(h2buf, &peer->local_v6_addr.v6,
+		if (ibuf_add(h2buf, &peer->local_v6_addr.v6,
 		    sizeof(struct in6_addr)) == -1 ||
-		    buf_add(h2buf, &peer->remote_addr.v6,
+		    ibuf_add(h2buf, &peer->remote_addr.v6,
 		    sizeof(struct in6_addr)) == -1) {
 			log_warnx("mrt_dump_entry_mp: buf_add error");
 			goto fail;
@@ -273,7 +273,7 @@ mrt_dump_entry_mp(struct mrt *mrt, struct prefix *p, u_int16_t snum,
 		DUMP_SHORT(h2buf, AFI_IPv6);	/* afi */
 		DUMP_BYTE(h2buf, SAFI_UNICAST);	/* safi */
 		DUMP_BYTE(h2buf, 16);		/* nhlen */
-		if (buf_add(h2buf, &nh->v6, sizeof(struct in6_addr)) == -1) {
+		if (ibuf_add(h2buf, &nh->v6, sizeof(struct in6_addr)) == -1) {
 			log_warnx("mrt_dump_entry_mp: buf_add error");
 			goto fail;
 		}
@@ -284,7 +284,7 @@ mrt_dump_entry_mp(struct mrt *mrt, struct prefix *p, u_int16_t snum,
 	}
 
 	p_len = PREFIX_SIZE(p->prefix->prefixlen);
-	if ((bptr = buf_reserve(h2buf, p_len)) == NULL) {
+	if ((bptr = ibuf_reserve(h2buf, p_len)) == NULL) {
 		log_warnx("mrt_dump_entry_mp: buf_reserve error");
 		goto fail;
 	}
@@ -294,24 +294,24 @@ mrt_dump_entry_mp(struct mrt *mrt, struct prefix *p, u_int16_t snum,
 	}
 
 	DUMP_SHORT(h2buf, len);
-	len += buf_size(h2buf);
+	len += ibuf_size(h2buf);
 
 	if (mrt_dump_hdr_rde(&hbuf, MSG_PROTOCOL_BGP4MP, BGP4MP_ENTRY,
 	    len) == -1)
 		goto fail;
 
-	buf_close(&mrt->wbuf, hbuf);
-	buf_close(&mrt->wbuf, h2buf);
-	buf_close(&mrt->wbuf, buf);
+	ibuf_close(&mrt->wbuf, hbuf);
+	ibuf_close(&mrt->wbuf, h2buf);
+	ibuf_close(&mrt->wbuf, buf);
 
 	return (len + MRT_HEADER_SIZE);
 
 fail:
 	if (hbuf)
-		buf_free(hbuf);
+		ibuf_free(hbuf);
 	if (h2buf)
-		buf_free(h2buf);
-	buf_free(buf);
+		ibuf_free(h2buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
@@ -319,7 +319,7 @@ int
 mrt_dump_entry(struct mrt *mrt, struct prefix *p, u_int16_t snum,
     struct rde_peer *peer)
 {
-	struct buf	*buf, *hbuf;
+	struct ibuf	*buf, *hbuf;
 	struct bgpd_addr addr, *nh;
 	size_t		 len;
 
@@ -328,7 +328,7 @@ mrt_dump_entry(struct mrt *mrt, struct prefix *p, u_int16_t snum,
 		/* only able to dump IPv4 */
 		return (0);
 
-	if ((buf = buf_dynamic(0, MAX_PKTSIZE)) == NULL) {
+	if ((buf = ibuf_dynamic(0, MAX_PKTSIZE)) == NULL) {
 		log_warnx("mrt_dump_entry: buf_dynamic");
 		return (-1);
 	}
@@ -341,13 +341,13 @@ mrt_dump_entry(struct mrt *mrt, struct prefix *p, u_int16_t snum,
 		nh = &p->aspath->nexthop->exit_nexthop;
 	if (mrt_attr_dump(buf, p->aspath, nh) == -1) {
 		log_warnx("mrt_dump_entry: mrt_attr_dump error");
-		buf_free(buf);
+		ibuf_free(buf);
 		return (-1);
 	}
-	len = buf_size(buf);
+	len = ibuf_size(buf);
 
 	if (mrt_dump_hdr_rde(&hbuf, MSG_TABLE_DUMP, AFI_IPv4, len) == -1) {
-		buf_free(buf);
+		ibuf_free(buf);
 		return (-1);
 	}
 
@@ -364,14 +364,14 @@ mrt_dump_entry(struct mrt *mrt, struct prefix *p, u_int16_t snum,
 	DUMP_SHORT(hbuf, peer->short_as);
 	DUMP_SHORT(hbuf, len);
 
-	buf_close(&mrt->wbuf, hbuf);
-	buf_close(&mrt->wbuf, buf);
+	ibuf_close(&mrt->wbuf, hbuf);
+	ibuf_close(&mrt->wbuf, buf);
 
 	return (len + MRT_HEADER_SIZE);
 
 fail:
-	buf_free(hbuf);
-	buf_free(buf);
+	ibuf_free(hbuf);
+	ibuf_free(buf);
 	return (-1);
 }
 
@@ -405,12 +405,12 @@ mrt_done(void *ptr)
 }
 
 int
-mrt_dump_hdr_se(struct buf ** bp, struct peer *peer, u_int16_t type,
+mrt_dump_hdr_se(struct ibuf ** bp, struct peer *peer, u_int16_t type,
     u_int16_t subtype, u_int32_t len, int swap)
 {
 	time_t	 	now;
 
-	if ((*bp = buf_dynamic(MRT_HEADER_SIZE, MRT_HEADER_SIZE +
+	if ((*bp = ibuf_dynamic(MRT_HEADER_SIZE, MRT_HEADER_SIZE +
 	    MRT_BGP4MP_AS4_IPv6_HEADER_SIZE + len)) == NULL) {
 		log_warnx("mrt_dump_hdr_se: buf_open error");
 		return (-1);
@@ -478,20 +478,20 @@ mrt_dump_hdr_se(struct buf ** bp, struct peer *peer, u_int16_t type,
 	case AF_INET6:
 		DUMP_SHORT(*bp, AFI_IPv6);
 		if (!swap)
-			if (buf_add(*bp, &((struct sockaddr_in6 *)
+			if (ibuf_add(*bp, &((struct sockaddr_in6 *)
 			    &peer->sa_local)->sin6_addr,
 			    sizeof(struct in6_addr)) == -1) {
 				log_warnx("mrt_dump_hdr_se: buf_add error");
 				goto fail;
 			}
-		if (buf_add(*bp,
+		if (ibuf_add(*bp,
 		    &((struct sockaddr_in6 *)&peer->sa_remote)->sin6_addr,
 		    sizeof(struct in6_addr)) == -1) {
 			log_warnx("mrt_dump_hdr_se: buf_add error");
 			goto fail;
 		}
 		if (swap)
-			if (buf_add(*bp, &((struct sockaddr_in6 *)
+			if (ibuf_add(*bp, &((struct sockaddr_in6 *)
 			    &peer->sa_local)->sin6_addr,
 			    sizeof(struct in6_addr)) == -1) {
 				log_warnx("mrt_dump_hdr_se: buf_add error");
@@ -503,17 +503,17 @@ mrt_dump_hdr_se(struct buf ** bp, struct peer *peer, u_int16_t type,
 	return (0);
 
 fail:
-	buf_free(*bp);
+	ibuf_free(*bp);
 	return (-1);
 }
 
 int
-mrt_dump_hdr_rde(struct buf **bp, u_int16_t type, u_int16_t subtype,
+mrt_dump_hdr_rde(struct ibuf **bp, u_int16_t type, u_int16_t subtype,
     u_int32_t len)
 {
 	time_t		 now;
 
-	if ((*bp = buf_dynamic(MRT_HEADER_SIZE, MRT_HEADER_SIZE +
+	if ((*bp = ibuf_dynamic(MRT_HEADER_SIZE, MRT_HEADER_SIZE +
 	    MRT_BGP4MP_AS4_IPv6_HEADER_SIZE + MRT_BGP4MP_IPv6_ENTRY_SIZE)) ==
 	    NULL) {
 		log_warnx("mrt_dump_hdr_rde: buf_dynamic error");
@@ -539,7 +539,7 @@ mrt_dump_hdr_rde(struct buf **bp, u_int16_t type, u_int16_t subtype,
 	return (0);
 
 fail:
-	buf_free(*bp);
+	ibuf_free(*bp);
 	return (-1);
 }
 
@@ -548,7 +548,7 @@ mrt_write(struct mrt *mrt)
 {
 	int	r;
 
-	if ((r = buf_write(&mrt->wbuf)) < 0) {
+	if ((r = ibuf_write(&mrt->wbuf)) < 0) {
 		log_warn("mrt dump aborted, mrt_write");
 		mrt_clean(mrt);
 		mrt_done(mrt);
@@ -558,12 +558,12 @@ mrt_write(struct mrt *mrt)
 void
 mrt_clean(struct mrt *mrt)
 {
-	struct buf	*b;
+	struct ibuf	*b;
 
 	close(mrt->wbuf.fd);
 	while ((b = TAILQ_FIRST(&mrt->wbuf.bufs))) {
 		TAILQ_REMOVE(&mrt->wbuf.bufs, b, entry);
-		buf_free(b);
+		ibuf_free(b);
 	}
 	mrt->wbuf.queued = 0;
 }
diff --git a/usr.sbin/bgpd/rde.c b/usr.sbin/bgpd/rde.c
index 4daea46e753..8f78fd7d1b0 100644
--- a/usr.sbin/bgpd/rde.c
+++ b/usr.sbin/bgpd/rde.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: rde.c,v 1.295 2010/05/19 12:44:14 claudio Exp $ */
+/*	$OpenBSD: rde.c,v 1.296 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -1876,7 +1876,7 @@ void
 rde_update_err(struct rde_peer *peer, u_int8_t error, u_int8_t suberr,
     void *data, u_int16_t size)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf_se, IMSG_UPDATE_ERR, peer->conf.id, 0,
 	    size + sizeof(error) + sizeof(suberr))) == NULL)
@@ -2048,7 +2048,7 @@ void
 rde_dump_rib_as(struct prefix *p, struct rde_aspath *asp, pid_t pid, int flags)
 {
 	struct ctl_show_rib	 rib;
-	struct buf		*wbuf;
+	struct ibuf		*wbuf;
 	struct attr		*a;
 	void			*bp;
 	u_int8_t		 l;
@@ -2108,13 +2108,13 @@ rde_dump_rib_as(struct prefix *p, struct rde_aspath *asp, pid_t pid, int flags)
 			    IMSG_CTL_SHOW_RIB_ATTR, 0, pid,
 			    attr_optlen(a))) == NULL)
 				return;
-			if ((bp = buf_reserve(wbuf, attr_optlen(a))) == NULL) {
-				buf_free(wbuf);
+			if ((bp = ibuf_reserve(wbuf, attr_optlen(a))) == NULL) {
+				ibuf_free(wbuf);
 				return;
 			}
 			if (attr_write(bp, attr_optlen(a), a->flags,
 			    a->type, a->data, a->len) == -1) {
-				buf_free(wbuf);
+				ibuf_free(wbuf);
 				return;
 			}
 			imsg_close(ibuf_se_ctl, wbuf);
diff --git a/usr.sbin/bgpd/rde.h b/usr.sbin/bgpd/rde.h
index 687b44d3998..3c0db096f4e 100644
--- a/usr.sbin/bgpd/rde.h
+++ b/usr.sbin/bgpd/rde.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: rde.h,v 1.136 2010/05/19 12:44:15 claudio Exp $ */
+/*	$OpenBSD: rde.h,v 1.137 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2003, 2004 Claudio Jeker <claudio@openbsd.org> and
@@ -313,7 +313,7 @@ int		 rde_as4byte(struct rde_peer *);
 /* rde_attr.c */
 int		 attr_write(void *, u_int16_t, u_int8_t, u_int8_t, void *,
 		     u_int16_t);
-int		 attr_writebuf(struct buf *, u_int8_t, u_int8_t, void *,
+int		 attr_writebuf(struct ibuf *, u_int8_t, u_int8_t, void *,
 		     u_int16_t);
 void		 attr_init(u_int32_t);
 void		 attr_shutdown(void);
diff --git a/usr.sbin/bgpd/rde_attr.c b/usr.sbin/bgpd/rde_attr.c
index e38473ff8d8..f00f82dddcb 100644
--- a/usr.sbin/bgpd/rde_attr.c
+++ b/usr.sbin/bgpd/rde_attr.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: rde_attr.c,v 1.84 2010/05/17 16:08:20 claudio Exp $ */
+/*	$OpenBSD: rde_attr.c,v 1.85 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2004 Claudio Jeker <claudio@openbsd.org>
@@ -63,7 +63,7 @@ attr_write(void *p, u_int16_t p_len, u_int8_t flags, u_int8_t type,
 }
 
 int
-attr_writebuf(struct buf *buf, u_int8_t flags, u_int8_t type, void *data,
+attr_writebuf(struct ibuf *buf, u_int8_t flags, u_int8_t type, void *data,
     u_int16_t data_len)
 {
 	u_char	hdr[4];
@@ -80,9 +80,9 @@ attr_writebuf(struct buf *buf, u_int8_t flags, u_int8_t type, void *data,
 	hdr[0] = flags;
 	hdr[1] = type;
 
-	if (buf_add(buf, hdr, flags & ATTR_EXTLEN ? 4 : 3) == -1)
+	if (ibuf_add(buf, hdr, flags & ATTR_EXTLEN ? 4 : 3) == -1)
 		return (-1);
-	if (buf_add(buf, data, data_len) == -1)
+	if (ibuf_add(buf, data, data_len) == -1)
 		return (-1);
 	return (0);
 }
diff --git a/usr.sbin/bgpd/session.c b/usr.sbin/bgpd/session.c
index 858896adac2..086cbd1ef4b 100644
--- a/usr.sbin/bgpd/session.c
+++ b/usr.sbin/bgpd/session.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: session.c,v 1.308 2010/05/03 13:09:38 claudio Exp $ */
+/*	$OpenBSD: session.c,v 1.309 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2003, 2004, 2005 Henning Brauer <henning@openbsd.org>
@@ -65,8 +65,8 @@ void	session_accept(int);
 int	session_connect(struct peer *);
 void	session_tcp_established(struct peer *);
 void	session_capa_ann_none(struct peer *);
-int	session_capa_add(struct buf *, u_int8_t, u_int8_t);
-int	session_capa_add_mp(struct buf *, u_int8_t);
+int	session_capa_add(struct ibuf *, u_int8_t, u_int8_t);
+int	session_capa_add_mp(struct ibuf *, u_int8_t);
 struct bgp_msg	*session_newmsg(enum msg_type, u_int16_t);
 int	session_sendmsg(struct bgp_msg *, struct peer *);
 void	session_open(struct peer *);
@@ -626,7 +626,7 @@ bgp_fsm(struct peer *peer, enum session_events event)
 			timer_stop(peer, Timer_IdleHold);
 
 			/* allocate read buffer */
-			peer->rbuf = calloc(1, sizeof(struct buf_read));
+			peer->rbuf = calloc(1, sizeof(struct ibuf_read));
 			if (peer->rbuf == NULL)
 				fatal(NULL);
 
@@ -1227,17 +1227,17 @@ session_capa_ann_none(struct peer *peer)
 }
 
 int
-session_capa_add(struct buf *opb, u_int8_t capa_code, u_int8_t capa_len)
+session_capa_add(struct ibuf *opb, u_int8_t capa_code, u_int8_t capa_len)
 {
 	int errs = 0;
 
-	errs += buf_add(opb, &capa_code, sizeof(capa_code));
-	errs += buf_add(opb, &capa_len, sizeof(capa_len));
+	errs += ibuf_add(opb, &capa_code, sizeof(capa_code));
+	errs += ibuf_add(opb, &capa_len, sizeof(capa_len));
 	return (errs);
 }
 
 int
-session_capa_add_mp(struct buf *buf, u_int8_t aid)
+session_capa_add_mp(struct ibuf *buf, u_int8_t aid)
 {
 	u_int8_t		 safi, pad = 0;
 	u_int16_t		 afi;
@@ -1246,9 +1246,9 @@ session_capa_add_mp(struct buf *buf, u_int8_t aid)
 	if (aid2afi(aid, &afi, &safi) == -1)
 		fatalx("session_capa_add_mp: bad afi/safi pair");
 	afi = htons(afi);
-	errs += buf_add(buf, &afi, sizeof(afi));
-	errs += buf_add(buf, &pad, sizeof(pad));
-	errs += buf_add(buf, &safi, sizeof(safi));
+	errs += ibuf_add(buf, &afi, sizeof(afi));
+	errs += ibuf_add(buf, &pad, sizeof(pad));
+	errs += ibuf_add(buf, &safi, sizeof(safi));
 
 	return (errs);
 }
@@ -1258,23 +1258,23 @@ session_newmsg(enum msg_type msgtype, u_int16_t len)
 {
 	struct bgp_msg		*msg;
 	struct msg_header	 hdr;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	int			 errs = 0;
 
 	memset(&hdr.marker, 0xff, sizeof(hdr.marker));
 	hdr.len = htons(len);
 	hdr.type = msgtype;
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
-	errs += buf_add(buf, &hdr.marker, sizeof(hdr.marker));
-	errs += buf_add(buf, &hdr.len, sizeof(hdr.len));
-	errs += buf_add(buf, &hdr.type, sizeof(hdr.type));
+	errs += ibuf_add(buf, &hdr.marker, sizeof(hdr.marker));
+	errs += ibuf_add(buf, &hdr.len, sizeof(hdr.len));
+	errs += ibuf_add(buf, &hdr.type, sizeof(hdr.type));
 
 	if (errs > 0 ||
 	    (msg = calloc(1, sizeof(*msg))) == NULL) {
-		buf_free(buf);
+		ibuf_free(buf);
 		return (NULL);
 	}
 
@@ -1300,7 +1300,7 @@ session_sendmsg(struct bgp_msg *msg, struct peer *p)
 			mrt_dump_bgp_msg(mrt, msg->buf->buf, msg->len, p);
 	}
 
-	buf_close(&p->wbuf, msg->buf);
+	ibuf_close(&p->wbuf, msg->buf);
 	free(msg);
 	return (0);
 }
@@ -1309,14 +1309,14 @@ void
 session_open(struct peer *p)
 {
 	struct bgp_msg		*buf;
-	struct buf		*opb;
+	struct ibuf		*opb;
 	struct msg_open		 msg;
 	u_int16_t		 len;
 	u_int8_t		 i, op_type, optparamlen = 0;
 	u_int			 errs = 0;
 
 
-	if ((opb = buf_dynamic(0, UCHAR_MAX - sizeof(op_type) -
+	if ((opb = ibuf_dynamic(0, UCHAR_MAX - sizeof(op_type) -
 	    sizeof(optparamlen))) == NULL) {
 		bgp_fsm(p, EVNT_CON_FATAL);
 		return;
@@ -1340,7 +1340,7 @@ session_open(struct peer *p)
 		c[0] = 0x80; /* we're always restarting */
 		c[1] = 0;
 		errs += session_capa_add(opb, CAPA_RESTART, 2);
-		errs += buf_add(opb, &c, 2);
+		errs += ibuf_add(opb, &c, 2);
 	}
 
 	/* 4-bytes AS numbers, draft-ietf-idr-as4bytes-13 */
@@ -1349,16 +1349,16 @@ session_open(struct peer *p)
 
 		nas = htonl(conf->as);
 		errs += session_capa_add(opb, CAPA_AS4BYTE, sizeof(nas));
-		errs += buf_add(opb, &nas, sizeof(nas));
+		errs += ibuf_add(opb, &nas, sizeof(nas));
 	}
 
-	if (buf_size(opb))
-		optparamlen = buf_size(opb) + sizeof(op_type) +
+	if (ibuf_size(opb))
+		optparamlen = ibuf_size(opb) + sizeof(op_type) +
 		    sizeof(optparamlen);
 
 	len = MSGSIZE_OPEN_MIN + optparamlen;
 	if (errs || (buf = session_newmsg(OPEN, len)) == NULL) {
-		buf_free(opb);
+		ibuf_free(opb);
 		bgp_fsm(p, EVNT_CON_FATAL);
 		return;
 	}
@@ -1372,24 +1372,24 @@ session_open(struct peer *p)
 	msg.bgpid = conf->bgpid;	/* is already in network byte order */
 	msg.optparamlen = optparamlen;
 
-	errs += buf_add(buf->buf, &msg.version, sizeof(msg.version));
-	errs += buf_add(buf->buf, &msg.myas, sizeof(msg.myas));
-	errs += buf_add(buf->buf, &msg.holdtime, sizeof(msg.holdtime));
-	errs += buf_add(buf->buf, &msg.bgpid, sizeof(msg.bgpid));
-	errs += buf_add(buf->buf, &msg.optparamlen, sizeof(msg.optparamlen));
+	errs += ibuf_add(buf->buf, &msg.version, sizeof(msg.version));
+	errs += ibuf_add(buf->buf, &msg.myas, sizeof(msg.myas));
+	errs += ibuf_add(buf->buf, &msg.holdtime, sizeof(msg.holdtime));
+	errs += ibuf_add(buf->buf, &msg.bgpid, sizeof(msg.bgpid));
+	errs += ibuf_add(buf->buf, &msg.optparamlen, sizeof(msg.optparamlen));
 
 	if (optparamlen) {
 		op_type = OPT_PARAM_CAPABILITIES;
-		optparamlen = buf_size(opb);
-		errs += buf_add(buf->buf, &op_type, sizeof(op_type));
-		errs += buf_add(buf->buf, &optparamlen, sizeof(optparamlen));
-		errs += buf_add(buf->buf, opb->buf, buf_size(opb));
+		optparamlen = ibuf_size(opb);
+		errs += ibuf_add(buf->buf, &op_type, sizeof(op_type));
+		errs += ibuf_add(buf->buf, &optparamlen, sizeof(optparamlen));
+		errs += ibuf_add(buf->buf, opb->buf, ibuf_size(opb));
 	}
 
-	buf_free(opb);
+	ibuf_free(opb);
 
 	if (errs > 0) {
-		buf_free(buf->buf);
+		ibuf_free(buf->buf);
 		free(buf);
 		bgp_fsm(p, EVNT_CON_FATAL);
 		return;
@@ -1437,8 +1437,8 @@ session_update(u_int32_t peerid, void *data, size_t datalen)
 		return;
 	}
 
-	if (buf_add(buf->buf, data, datalen)) {
-		buf_free(buf->buf);
+	if (ibuf_add(buf->buf, data, datalen)) {
+		ibuf_free(buf->buf);
 		free(buf);
 		bgp_fsm(p, EVNT_CON_FATAL);
 		return;
@@ -1469,14 +1469,14 @@ session_notification(struct peer *p, u_int8_t errcode, u_int8_t subcode,
 		return;
 	}
 
-	errs += buf_add(buf->buf, &errcode, sizeof(errcode));
-	errs += buf_add(buf->buf, &subcode, sizeof(subcode));
+	errs += ibuf_add(buf->buf, &errcode, sizeof(errcode));
+	errs += ibuf_add(buf->buf, &subcode, sizeof(subcode));
 
 	if (datalen > 0)
-		errs += buf_add(buf->buf, data, datalen);
+		errs += ibuf_add(buf->buf, data, datalen);
 
 	if (errs > 0) {
-		buf_free(buf->buf);
+		ibuf_free(buf->buf);
 		free(buf);
 		bgp_fsm(p, EVNT_CON_FATAL);
 		return;
@@ -1525,12 +1525,12 @@ session_rrefresh(struct peer *p, u_int8_t aid)
 	}
 
 	afi = htons(afi);
-	errs += buf_add(buf->buf, &afi, sizeof(afi));
-	errs += buf_add(buf->buf, &null8, sizeof(null8));
-	errs += buf_add(buf->buf, &safi, sizeof(safi));
+	errs += ibuf_add(buf->buf, &afi, sizeof(afi));
+	errs += ibuf_add(buf->buf, &null8, sizeof(null8));
+	errs += ibuf_add(buf->buf, &safi, sizeof(safi));
 
 	if (errs > 0) {
-		buf_free(buf->buf);
+		ibuf_free(buf->buf);
 		free(buf);
 		bgp_fsm(p, EVNT_CON_FATAL);
 		return;
diff --git a/usr.sbin/bgpd/session.h b/usr.sbin/bgpd/session.h
index 9484cf68cd9..d2ebb003c8f 100644
--- a/usr.sbin/bgpd/session.h
+++ b/usr.sbin/bgpd/session.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: session.h,v 1.106 2010/05/17 15:49:29 claudio Exp $ */
+/*	$OpenBSD: session.h,v 1.107 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -109,7 +109,7 @@ enum capa_codes {
 };
 
 struct bgp_msg {
-	struct buf	*buf;
+	struct ibuf	*buf;
 	enum msg_type	 type;
 	u_int16_t	 len;
 };
@@ -202,7 +202,7 @@ struct peer {
 	struct sockaddr_storage	 sa_remote;
 	struct peer_timer_head	 timers;
 	struct msgbuf		 wbuf;
-	struct buf_read		*rbuf;
+	struct ibuf_read	*rbuf;
 	struct peer		*next;
 	int			 fd;
 	int			 lasterr;
diff --git a/usr.sbin/dvmrpd/ask_nbrs2.c b/usr.sbin/dvmrpd/ask_nbrs2.c
index 2080a0a253b..378ae6f5265 100644
--- a/usr.sbin/dvmrpd/ask_nbrs2.c
+++ b/usr.sbin/dvmrpd/ask_nbrs2.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ask_nbrs2.c,v 1.1 2006/06/01 14:12:20 norby Exp $ */
+/*	$OpenBSD: ask_nbrs2.c,v 1.2 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2006 Esben Norby <norby@openbsd.org>
@@ -37,7 +37,7 @@ int
 send_ask_nbrs2(struct iface *iface, struct in_addr addr, void *data, int len)
 {
 	struct sockaddr_in	 dst;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct dvmrp_hdr	*dvmrp_hdr;
 	int			 ret = 0;
 
@@ -47,7 +47,7 @@ send_ask_nbrs2(struct iface *iface, struct in_addr addr, void *data, int len)
 	if (iface->passive)
 		return (0);
 
-	if ((buf = buf_open(iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_ask_nbrs2");
 
 	/* DVMRP header */
@@ -59,15 +59,15 @@ send_ask_nbrs2(struct iface *iface, struct in_addr addr, void *data, int len)
 	dst.sin_addr.s_addr = addr.s_addr;
 
 	/* update chksum */
-	dvmrp_hdr = buf_seek(buf, 0, sizeof(dvmrp_hdr));
+	dvmrp_hdr = ibuf_seek(buf, 0, sizeof(dvmrp_hdr));
 	dvmrp_hdr->chksum = in_cksum(buf->buf, buf->wpos);
 
 	ret = send_packet(iface, buf->buf, buf->wpos, &dst);
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_ask_nbrs2");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/dvmrpd/buffer.c b/usr.sbin/dvmrpd/buffer.c
index adba24d73d2..c4e5f208ce5 100644
--- a/usr.sbin/dvmrpd/buffer.c
+++ b/usr.sbin/dvmrpd/buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: buffer.c,v 1.5 2009/09/15 10:54:59 jacekm Exp $	*/
+/*	$OpenBSD: buffer.c,v 1.6 2010/05/26 13:56:07 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -28,16 +28,16 @@
 
 #include "imsg.h"
 
-int	buf_realloc(struct buf *, size_t);
-void	buf_enqueue(struct msgbuf *, struct buf *);
-void	buf_dequeue(struct msgbuf *, struct buf *);
+int	ibuf_realloc(struct ibuf *, size_t);
+void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
-struct buf *
-buf_open(size_t len)
+struct ibuf *
+ibuf_open(size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
-	if ((buf = calloc(1, sizeof(struct buf))) == NULL)
+	if ((buf = calloc(1, sizeof(struct ibuf))) == NULL)
 		return (NULL);
 	if ((buf->buf = malloc(len)) == NULL) {
 		free(buf);
@@ -49,15 +49,15 @@ buf_open(size_t len)
 	return (buf);
 }
 
-struct buf *
-buf_dynamic(size_t len, size_t max)
+struct ibuf *
+ibuf_dynamic(size_t len, size_t max)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (max < len)
 		return (NULL);
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
 	if (max > 0)
@@ -67,7 +67,7 @@ buf_dynamic(size_t len, size_t max)
 }
 
 int
-buf_realloc(struct buf *buf, size_t len)
+ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
 
@@ -87,10 +87,10 @@ buf_realloc(struct buf *buf, size_t len)
 }
 
 int
-buf_add(struct buf *buf, const void *data, size_t len)
+ibuf_add(struct ibuf *buf, const void *data, size_t len)
 {
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (-1);
 
 	memcpy(buf->buf + buf->wpos, data, len);
@@ -99,12 +99,12 @@ buf_add(struct buf *buf, const void *data, size_t len)
 }
 
 void *
-buf_reserve(struct buf *buf, size_t len)
+ibuf_reserve(struct ibuf *buf, size_t len)
 {
 	void	*b;
 
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (NULL);
 
 	b = buf->buf + buf->wpos;
@@ -113,7 +113,7 @@ buf_reserve(struct buf *buf, size_t len)
 }
 
 void *
-buf_seek(struct buf *buf, size_t pos, size_t len)
+ibuf_seek(struct ibuf *buf, size_t pos, size_t len)
 {
 	/* only allowed to seek in already written parts */
 	if (pos + len > buf->wpos)
@@ -123,28 +123,28 @@ buf_seek(struct buf *buf, size_t pos, size_t len)
 }
 
 size_t
-buf_size(struct buf *buf)
+ibuf_size(struct ibuf *buf)
 {
 	return (buf->wpos);
 }
 
 size_t
-buf_left(struct buf *buf)
+ibuf_left(struct ibuf *buf)
 {
 	return (buf->max - buf->wpos);
 }
 
 void
-buf_close(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_close(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	buf_enqueue(msgbuf, buf);
+	ibuf_enqueue(msgbuf, buf);
 }
 
 int
-buf_write(struct msgbuf *msgbuf)
+ibuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t	n;
 
@@ -176,7 +176,7 @@ buf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_free(struct buf *buf)
+ibuf_free(struct ibuf *buf)
 {
 	free(buf->buf);
 	free(buf);
@@ -193,14 +193,14 @@ msgbuf_init(struct msgbuf *msgbuf)
 void
 msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 {
-	struct buf	*buf, *next;
+	struct ibuf	*buf, *next;
 
 	for (buf = TAILQ_FIRST(&msgbuf->bufs); buf != NULL && n > 0;
 	    buf = next) {
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
-			buf_dequeue(msgbuf, buf);
+			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
 			n = 0;
@@ -211,17 +211,17 @@ msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 void
 msgbuf_clear(struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
-		buf_dequeue(msgbuf, buf);
+		ibuf_dequeue(msgbuf, buf);
 }
 
 int
 msgbuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t		 n;
 	struct msghdr	 msg;
@@ -284,14 +284,14 @@ msgbuf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_enqueue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
 void
-buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 
@@ -299,5 +299,5 @@ buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
 		close(buf->fd);
 
 	msgbuf->queued--;
-	buf_free(buf);
+	ibuf_free(buf);
 }
diff --git a/usr.sbin/dvmrpd/dvmrpe.c b/usr.sbin/dvmrpd/dvmrpe.c
index 24aaabaa235..f8217e46e35 100644
--- a/usr.sbin/dvmrpd/dvmrpe.c
+++ b/usr.sbin/dvmrpd/dvmrpe.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: dvmrpe.c,v 1.8 2009/09/22 16:38:31 michele Exp $ */
+/*	$OpenBSD: dvmrpe.c,v 1.9 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
@@ -169,7 +169,7 @@ dvmrpe(struct dvmrpd_conf *xconf, int pipe_parent2dvmrpe[2],
 	TAILQ_INIT(&ctl_conns);
 	control_listen();
 
-	if ((pkt_ptr = calloc(1, READ_BUF_SIZE)) == NULL)
+	if ((pkt_ptr = calloc(1, IBUF_READ_SIZE)) == NULL)
 		fatal("dvmrpe");
 
 	/* start interfaces */
diff --git a/usr.sbin/dvmrpd/dvmrpe.h b/usr.sbin/dvmrpd/dvmrpe.h
index d5e95d283ca..7b771522906 100644
--- a/usr.sbin/dvmrpd/dvmrpe.h
+++ b/usr.sbin/dvmrpd/dvmrpe.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: dvmrpe.h,v 1.3 2009/03/14 15:32:55 michele Exp $ */
+/*	$OpenBSD: dvmrpe.h,v 1.4 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005, 2006 Esben Norby <norby@openbsd.org>
@@ -183,7 +183,7 @@ const char	*nbr_action_name(int);
 struct ctl_nbr	*nbr_to_ctl(struct nbr *);
 
 /* packet.c */
-int		 gen_dvmrp_hdr(struct buf *, struct iface *, u_int8_t);
+int		 gen_dvmrp_hdr(struct ibuf *, struct iface *, u_int8_t);
 int		 send_packet(struct iface *, void *, size_t, struct sockaddr_in *);
 void		 recv_packet(int, short, void *);
 
diff --git a/usr.sbin/dvmrpd/graft.c b/usr.sbin/dvmrpd/graft.c
index 1931de3e3dc..7b2eab92c19 100644
--- a/usr.sbin/dvmrpd/graft.c
+++ b/usr.sbin/dvmrpd/graft.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: graft.c,v 1.1 2006/06/01 14:12:20 norby Exp $ */
+/*	$OpenBSD: graft.c,v 1.2 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2005, 2006 Esben Norby <norby@openbsd.org>
@@ -37,7 +37,7 @@ int
 send_graft(struct iface *iface, struct in_addr addr, void *data, int len)
 {
 	struct sockaddr_in	 dst;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct dvmrp_hdr	*dvmrp_hdr;
 	int			 ret = 0;
 
@@ -47,7 +47,7 @@ send_graft(struct iface *iface, struct in_addr addr, void *data, int len)
 	if (iface->passive)
 		return (0);
 
-	if ((buf = buf_open(iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_graft");
 
 	/* DVMRP header */
@@ -59,15 +59,15 @@ send_graft(struct iface *iface, struct in_addr addr, void *data, int len)
 	dst.sin_addr.s_addr = addr.s_addr;
 
 	/* update chksum */
-	dvmrp_hdr = buf_seek(buf, 0, sizeof(dvmrp_hdr));
+	dvmrp_hdr = ibuf_seek(buf, 0, sizeof(dvmrp_hdr));
 	dvmrp_hdr->chksum = in_cksum(buf->buf, buf->wpos);
 
 	ret = send_packet(iface, buf->buf, buf->wpos, &dst);
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_graft");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/dvmrpd/graft_ack.c b/usr.sbin/dvmrpd/graft_ack.c
index 682293273da..70154b80cca 100644
--- a/usr.sbin/dvmrpd/graft_ack.c
+++ b/usr.sbin/dvmrpd/graft_ack.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: graft_ack.c,v 1.1 2006/06/01 14:12:20 norby Exp $ */
+/*	$OpenBSD: graft_ack.c,v 1.2 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2006 Esben Norby <norby@openbsd.org>
@@ -37,7 +37,7 @@ int
 send_graft_ack(struct iface *iface, struct in_addr addr, void *data, int len)
 {
 	struct sockaddr_in	 dst;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct dvmrp_hdr	*dvmrp_hdr;
 	int			 ret = 0;
 
@@ -47,7 +47,7 @@ send_graft_ack(struct iface *iface, struct in_addr addr, void *data, int len)
 	if (iface->passive)
 		return (0);
 
-	if ((buf = buf_open(iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_graft_ack");
 
 	/* DVMRP header */
@@ -59,15 +59,15 @@ send_graft_ack(struct iface *iface, struct in_addr addr, void *data, int len)
 	dst.sin_addr.s_addr = addr.s_addr;
 
 	/* update chksum */
-	dvmrp_hdr = buf_seek(buf, 0, sizeof(dvmrp_hdr));
+	dvmrp_hdr = ibuf_seek(buf, 0, sizeof(dvmrp_hdr));
 	dvmrp_hdr->chksum = in_cksum(buf->buf, buf->wpos);
 
 	ret = send_packet(iface, buf->buf, buf->wpos, &dst);
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_graft_ack");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/dvmrpd/igmp.c b/usr.sbin/dvmrpd/igmp.c
index da0f3e3d0b7..b9594ee8400 100644
--- a/usr.sbin/dvmrpd/igmp.c
+++ b/usr.sbin/dvmrpd/igmp.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: igmp.c,v 1.1 2006/06/01 14:12:20 norby Exp $ */
+/*	$OpenBSD: igmp.c,v 1.2 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2005, 2006 Esben Norby <norby@openbsd.org>
@@ -40,7 +40,7 @@ send_igmp_query(struct iface *iface, struct group *group)
 {
 	struct igmp_hdr		 igmp_hdr;
 	struct sockaddr_in	 dst;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	int			 ret = 0;
 
 	log_debug("send_igmp_query: interface %s", iface->name);
@@ -48,7 +48,7 @@ send_igmp_query(struct iface *iface, struct group *group)
 	if (iface->passive)
 		return (0);
 
-	if ((buf = buf_open(iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_igmp_query");
 
 	/* IGMP header */
@@ -77,7 +77,7 @@ send_igmp_query(struct iface *iface, struct group *group)
 	/* update chksum */
 	igmp_hdr.chksum = in_cksum(&igmp_hdr, sizeof(igmp_hdr));
 
-	buf_add(buf, &igmp_hdr, sizeof(igmp_hdr));
+	ibuf_add(buf, &igmp_hdr, sizeof(igmp_hdr));
 
 	/* set destination address */
 	dst.sin_family = AF_INET;
@@ -85,7 +85,7 @@ send_igmp_query(struct iface *iface, struct group *group)
 	inet_aton(AllSystems, &dst.sin_addr);
 
 	ret = send_packet(iface, buf->buf, buf->wpos, &dst);
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 }
 
diff --git a/usr.sbin/dvmrpd/imsg.c b/usr.sbin/dvmrpd/imsg.c
index 53ca8b4385a..5e5f97c40cb 100644
--- a/usr.sbin/dvmrpd/imsg.c
+++ b/usr.sbin/dvmrpd/imsg.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.9 2010/04/07 18:09:39 nicm Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.10 2010/05/26 13:56:07 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -135,7 +135,7 @@ int
 imsg_compose(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, void *data, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf, type, peerid, pid, datalen)) == NULL)
 		return (-1);
@@ -154,7 +154,7 @@ int
 imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, const struct iovec *iov, int iovcnt)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	int		 i, datalen = 0;
 
 	for (i = 0; i < iovcnt; i++)
@@ -175,11 +175,11 @@ imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 /* ARGSUSED */
-struct buf *
+struct ibuf *
 imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	struct imsg_hdr	 hdr;
 
 	datalen += IMSG_HEADER_SIZE;
@@ -193,7 +193,7 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 	hdr.peerid = peerid;
 	if ((hdr.pid = pid) == 0)
 		hdr.pid = ibuf->pid;
-	if ((wbuf = buf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
+	if ((wbuf = ibuf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
 		return (NULL);
 	}
 	if (imsg_add(wbuf, &hdr, sizeof(hdr)) == -1)
@@ -203,18 +203,18 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 int
-imsg_add(struct buf *msg, void *data, u_int16_t datalen)
+imsg_add(struct ibuf *msg, void *data, u_int16_t datalen)
 {
 	if (datalen)
-		if (buf_add(msg, data, datalen) == -1) {
-			buf_free(msg);
+		if (ibuf_add(msg, data, datalen) == -1) {
+			ibuf_free(msg);
 			return (-1);
 		}
 	return (datalen);
 }
 
 void
-imsg_close(struct imsgbuf *ibuf, struct buf *msg)
+imsg_close(struct imsgbuf *ibuf, struct ibuf *msg)
 {
 	struct imsg_hdr	*hdr;
 
@@ -226,7 +226,7 @@ imsg_close(struct imsgbuf *ibuf, struct buf *msg)
 
 	hdr->len = (u_int16_t)msg->wpos;
 
-	buf_close(&ibuf->w, msg);
+	ibuf_close(&ibuf->w, msg);
 }
 
 void
diff --git a/usr.sbin/dvmrpd/imsg.h b/usr.sbin/dvmrpd/imsg.h
index 9fd3f2f4964..43564710bb2 100644
--- a/usr.sbin/dvmrpd/imsg.h
+++ b/usr.sbin/dvmrpd/imsg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.h,v 1.5 2010/04/27 21:04:04 nicm Exp $	*/
+/*	$OpenBSD: imsg.h,v 1.6 2010/05/26 13:56:07 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -18,12 +18,12 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define READ_BUF_SIZE		65535
+#define IBUF_READ_SIZE		65535
 #define IMSG_HEADER_SIZE	sizeof(struct imsg_hdr)
 #define MAX_IMSGSIZE		16384
 
-struct buf {
-	TAILQ_ENTRY(buf)	 entry;
+struct ibuf {
+	TAILQ_ENTRY(ibuf)	 entry;
 	u_char			*buf;
 	size_t			 size;
 	size_t			 max;
@@ -33,13 +33,13 @@ struct buf {
 };
 
 struct msgbuf {
-	TAILQ_HEAD(, buf)	 bufs;
+	TAILQ_HEAD(, ibuf)	 bufs;
 	u_int32_t		 queued;
 	int			 fd;
 };
 
-struct buf_read {
-	u_char			 buf[READ_BUF_SIZE];
+struct ibuf_read {
+	u_char			 buf[IBUF_READ_SIZE];
 	u_char			*rptr;
 	size_t			 wpos;
 };
@@ -51,7 +51,7 @@ struct imsg_fd {
 
 struct imsgbuf {
 	TAILQ_HEAD(, imsg_fd)	 fds;
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	int			 fd;
 	pid_t			 pid;
@@ -75,16 +75,16 @@ struct imsg {
 
 
 /* buffer.c */
-struct buf	*buf_open(size_t);
-struct buf	*buf_dynamic(size_t, size_t);
-int		 buf_add(struct buf *, const void *, size_t);
-void		*buf_reserve(struct buf *, size_t);
-void		*buf_seek(struct buf *, size_t, size_t);
-size_t		 buf_size(struct buf *);
-size_t		 buf_left(struct buf *);
-void		 buf_close(struct msgbuf *, struct buf *);
-int		 buf_write(struct msgbuf *);
-void		 buf_free(struct buf *);
+struct ibuf	*ibuf_open(size_t);
+struct ibuf	*ibuf_dynamic(size_t, size_t);
+int		 ibuf_add(struct ibuf *, const void *, size_t);
+void		*ibuf_reserve(struct ibuf *, size_t);
+void		*ibuf_seek(struct ibuf *, size_t, size_t);
+size_t		 ibuf_size(struct ibuf *);
+size_t		 ibuf_left(struct ibuf *);
+void		 ibuf_close(struct msgbuf *, struct ibuf *);
+int		 ibuf_write(struct msgbuf *);
+void		 ibuf_free(struct ibuf *);
 void		 msgbuf_init(struct msgbuf *);
 void		 msgbuf_clear(struct msgbuf *);
 int		 msgbuf_write(struct msgbuf *);
@@ -98,10 +98,10 @@ int	 imsg_compose(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 int	 imsg_composev(struct imsgbuf *, u_int32_t, u_int32_t,  pid_t,
 	    int, const struct iovec *, int);
-struct buf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
+struct ibuf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    u_int16_t);
-int	 imsg_add(struct buf *, void *, u_int16_t);
-void	 imsg_close(struct imsgbuf *, struct buf *);
+int	 imsg_add(struct ibuf *, void *, u_int16_t);
+void	 imsg_close(struct imsgbuf *, struct ibuf *);
 void	 imsg_free(struct imsg *);
 int	 imsg_flush(struct imsgbuf *);
 void	 imsg_clear(struct imsgbuf *);
diff --git a/usr.sbin/dvmrpd/kmroute.c b/usr.sbin/dvmrpd/kmroute.c
index 911319bc995..891f630e27a 100644
--- a/usr.sbin/dvmrpd/kmroute.c
+++ b/usr.sbin/dvmrpd/kmroute.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: kmroute.c,v 1.1 2006/06/01 14:12:20 norby Exp $ */
+/*	$OpenBSD: kmroute.c,v 1.2 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2005, 2006 Esben Norby <norby@openbsd.org>
@@ -57,7 +57,7 @@ kmr_init(int fd)
 		mrt_add_vif(conf->mroute_socket, iface);
 	}
 
-	if ((mroute_ptr = calloc(1, READ_BUF_SIZE)) == NULL)
+	if ((mroute_ptr = calloc(1, IBUF_READ_SIZE)) == NULL)
 		fatal("kmr_init");
 
 	return (0);
@@ -94,7 +94,7 @@ kmr_recv_msg(int fd, short event, void *bula)
 	/* setup buffer */
 	buf = mroute_ptr;
 
-	if ((r = recvfrom(fd, buf, READ_BUF_SIZE, 0, NULL, NULL)) == -1) {
+	if ((r = recvfrom(fd, buf, IBUF_READ_SIZE, 0, NULL, NULL)) == -1) {
 		if (errno != EAGAIN && errno != EINTR)
 			log_debug("kmr_recv_msg: error receiving packet");
 		return;
diff --git a/usr.sbin/dvmrpd/nbrs2.c b/usr.sbin/dvmrpd/nbrs2.c
index 1ea88464dc6..62ed768d7f2 100644
--- a/usr.sbin/dvmrpd/nbrs2.c
+++ b/usr.sbin/dvmrpd/nbrs2.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: nbrs2.c,v 1.1 2006/06/01 14:12:20 norby Exp $ */
+/*	$OpenBSD: nbrs2.c,v 1.2 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2006 Esben Norby <norby@openbsd.org>
@@ -37,7 +37,7 @@ int
 send_nbrs2(struct iface *iface, struct in_addr addr, void *data, int len)
 {
 	struct sockaddr_in	 dst;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct dvmrp_hdr	*dvmrp_hdr;
 	int			 ret = 0;
 
@@ -47,7 +47,7 @@ send_nbrs2(struct iface *iface, struct in_addr addr, void *data, int len)
 	if (iface->passive)
 		return (0);
 
-	if ((buf = buf_open(iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_nbrs2");
 
 	/* DVMRP header */
@@ -59,15 +59,15 @@ send_nbrs2(struct iface *iface, struct in_addr addr, void *data, int len)
 	dst.sin_addr.s_addr = addr.s_addr;
 
 	/* update chksum */
-	dvmrp_hdr = buf_seek(buf, 0, sizeof(dvmrp_hdr));
+	dvmrp_hdr = ibuf_seek(buf, 0, sizeof(dvmrp_hdr));
 	dvmrp_hdr->chksum = in_cksum(buf->buf, buf->wpos);
 
 	ret = send_packet(iface, buf->buf, buf->wpos, &dst);
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_nbrs2");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/dvmrpd/packet.c b/usr.sbin/dvmrpd/packet.c
index f81a1614308..022c18f1e02 100644
--- a/usr.sbin/dvmrpd/packet.c
+++ b/usr.sbin/dvmrpd/packet.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: packet.c,v 1.1 2006/06/01 14:12:20 norby Exp $ */
+/*	$OpenBSD: packet.c,v 1.2 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005, 2006 Esben Norby <norby@openbsd.org>
@@ -45,7 +45,7 @@ struct iface	*find_iface(struct dvmrpd_conf *, struct in_addr);
 extern struct dvmrpd_conf	*deconf;
 
 int
-gen_dvmrp_hdr(struct buf *buf, struct iface *iface, u_int8_t code)
+gen_dvmrp_hdr(struct ibuf *buf, struct iface *iface, u_int8_t code)
 {
 	struct dvmrp_hdr	dvmrp_hdr;
 
@@ -57,7 +57,7 @@ gen_dvmrp_hdr(struct buf *buf, struct iface *iface, u_int8_t code)
 	dvmrp_hdr.minor_version = DVMRP_MINOR_VERSION;
 	dvmrp_hdr.major_version = DVMRP_MAJOR_VERSION;
 
-	return (buf_add(buf, &dvmrp_hdr, sizeof(dvmrp_hdr)));
+	return (ibuf_add(buf, &dvmrp_hdr, sizeof(dvmrp_hdr)));
 }
 
 /* send and receive packets */
@@ -108,7 +108,7 @@ recv_packet(int fd, short event, void *bula)
 	/* setup buffer */
 	buf = pkt_ptr;
 
-	if ((r = recvfrom(fd, buf, READ_BUF_SIZE, 0, NULL, NULL)) == -1) {
+	if ((r = recvfrom(fd, buf, IBUF_READ_SIZE, 0, NULL, NULL)) == -1) {
 		if (errno != EAGAIN && errno != EINTR)
 			log_debug("recv_packet: error receiving packet");
 		return;
diff --git a/usr.sbin/dvmrpd/probe.c b/usr.sbin/dvmrpd/probe.c
index 93e3dccb607..17347df9532 100644
--- a/usr.sbin/dvmrpd/probe.c
+++ b/usr.sbin/dvmrpd/probe.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: probe.c,v 1.1 2006/06/01 14:12:20 norby Exp $ */
+/*	$OpenBSD: probe.c,v 1.2 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2005, 2006 Esben Norby <norby@openbsd.org>
@@ -39,7 +39,7 @@ int
 send_probe(struct iface *iface)
 {
 	struct sockaddr_in	 dst;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct dvmrp_hdr	*dvmrp_hdr;
 	struct nbr		*nbr;
 	int			 ret = 0;
@@ -47,7 +47,7 @@ send_probe(struct iface *iface)
 	if (iface->passive)
 		return (0);
 
-	if ((buf = buf_open(iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_probe");
 
 	/* DVMRP header */
@@ -55,12 +55,12 @@ send_probe(struct iface *iface)
 		goto fail;
 
 	/* generation ID */
-	buf_add(buf, &iface->gen_id, sizeof(iface->gen_id));
+	ibuf_add(buf, &iface->gen_id, sizeof(iface->gen_id));
 
 	/* generate neighbor list */
 	LIST_FOREACH(nbr, &iface->nbr_list, entry) {
 		if (nbr->state > NBR_STA_DOWN)
-			buf_add(buf, &nbr->id, sizeof(nbr->id));
+			ibuf_add(buf, &nbr->id, sizeof(nbr->id));
 	}
 
 	/* set destination address */
@@ -69,15 +69,15 @@ send_probe(struct iface *iface)
 	inet_aton(AllDVMRPRouters, &dst.sin_addr);
 
 	/* update chksum */
-	dvmrp_hdr = buf_seek(buf, 0, sizeof(dvmrp_hdr));
+	dvmrp_hdr = ibuf_seek(buf, 0, sizeof(dvmrp_hdr));
 	dvmrp_hdr->chksum = in_cksum(buf->buf, buf->wpos);
 
 	ret = send_packet(iface, buf->buf, buf->wpos, &dst);
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_probe");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/dvmrpd/prune.c b/usr.sbin/dvmrpd/prune.c
index 58cf4ac3d1f..0296e113d6f 100644
--- a/usr.sbin/dvmrpd/prune.c
+++ b/usr.sbin/dvmrpd/prune.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: prune.c,v 1.2 2009/03/14 15:32:55 michele Exp $ */
+/*	$OpenBSD: prune.c,v 1.3 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2005, 2006 Esben Norby <norby@openbsd.org>
@@ -37,7 +37,7 @@ int
 send_prune(struct nbr *nbr, struct prune *p)
 {
 	struct sockaddr_in	 dst;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct dvmrp_hdr	*dvmrp_hdr;
 	struct prune_hdr	 prune;
 	int			 ret = 0;
@@ -54,7 +54,7 @@ send_prune(struct nbr *nbr, struct prune *p)
 	dst.sin_len = sizeof(struct sockaddr_in);
 	dst.sin_addr = nbr->addr;
 
-	if ((buf = buf_open(nbr->iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(nbr->iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_prune");
 
 	/* DVMRP header */
@@ -68,19 +68,19 @@ send_prune(struct nbr *nbr, struct prune *p)
 	prune.lifetime = htonl(MAX_PRUNE_LIFETIME);
 	prune.src_netmask = p->netmask.s_addr;
 
-	buf_add(buf, &prune, sizeof(prune));
+	ibuf_add(buf, &prune, sizeof(prune));
 
 	/* update chksum */
-	dvmrp_hdr = buf_seek(buf, 0, sizeof(dvmrp_hdr));
+	dvmrp_hdr = ibuf_seek(buf, 0, sizeof(dvmrp_hdr));
 	dvmrp_hdr->chksum = in_cksum(buf->buf, buf->wpos);
 
 	ret = send_packet(nbr->iface, buf->buf, buf->wpos, &dst);
-	buf_free(buf);
+	ibuf_free(buf);
 
 	return (ret);
 fail:
 	log_warn("send_prune");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/dvmrpd/report.c b/usr.sbin/dvmrpd/report.c
index 140dc3f572f..55137ad3119 100644
--- a/usr.sbin/dvmrpd/report.c
+++ b/usr.sbin/dvmrpd/report.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: report.c,v 1.7 2007/04/10 09:37:25 michele Exp $ */
+/*	$OpenBSD: report.c,v 1.8 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2005, 2006 Esben Norby <norby@openbsd.org>
@@ -41,7 +41,7 @@ int
 send_report(struct iface *iface, struct in_addr addr, void *data, int len)
 {
 	struct sockaddr_in	 dst;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct dvmrp_hdr	*dvmrp_hdr;
 	int			 ret = 0;
 
@@ -51,29 +51,29 @@ send_report(struct iface *iface, struct in_addr addr, void *data, int len)
 	if (iface->passive)
 		return (0);
 
-	if ((buf = buf_open(iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_report");
 
 	/* DVMRP header */
 	if (gen_dvmrp_hdr(buf, iface, DVMRP_CODE_REPORT))
 		goto fail;
 
-	buf_add(buf, data, len);
+	ibuf_add(buf, data, len);
 
 	dst.sin_family = AF_INET;
 	dst.sin_len = sizeof(struct sockaddr_in);
 	dst.sin_addr.s_addr = addr.s_addr;
 
 	/* update chksum */
-	dvmrp_hdr = buf_seek(buf, 0, sizeof(dvmrp_hdr));
+	dvmrp_hdr = ibuf_seek(buf, 0, sizeof(dvmrp_hdr));
 	dvmrp_hdr->chksum = in_cksum(buf->buf, buf->wpos);
 
 	ret = send_packet(iface, buf->buf, buf->wpos, &dst);
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_report");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
@@ -225,7 +225,7 @@ void
 rr_list_send(struct rr_head *rr_list, struct iface *xiface, struct nbr *nbr)
 {
 	struct rr_entry		*le, *le2;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct iface		*iface;
 	struct in_addr		 addr;
 	u_int32_t		 netid, netmask;
@@ -243,7 +243,7 @@ rr_list_send(struct rr_head *rr_list, struct iface *xiface, struct nbr *nbr)
 	}
 
 	while (!TAILQ_EMPTY(rr_list)) {
-		if ((buf = buf_open(iface->mtu - sizeof(struct ip))) == NULL)
+		if ((buf = ibuf_open(iface->mtu - sizeof(struct ip))) == NULL)
 			fatal("rr_list_send");
 
 		prefixlen = 0;
@@ -255,13 +255,13 @@ rr_list_send(struct rr_head *rr_list, struct iface *xiface, struct nbr *nbr)
 				prefixlen = mask2prefixlen(netmask);
 				netmask = ntohl(netmask) << 8;
 				netmask = htonl(netmask);
-				buf_add(buf, &netmask, 3);
+				ibuf_add(buf, &netmask, 3);
 			}
 			netid_len = PREFIX_SIZE(prefixlen);
 
 			/* netid */
 			netid = le->re->net.s_addr;
-			buf_add(buf, &netid, netid_len);
+			ibuf_add(buf, &netid, netid_len);
 
 			/* metric */
 			if (iface->ifindex == le->re->ifindex)
@@ -283,13 +283,13 @@ rr_list_send(struct rr_head *rr_list, struct iface *xiface, struct nbr *nbr)
 				metric = metric | LAST_MASK;
 			}
 
-			buf_add(buf, &metric, sizeof(metric));
+			ibuf_add(buf, &metric, sizeof(metric));
 
 			TAILQ_REMOVE(rr_list, le, entry);
 			rr_list_remove(le->re);
 			free(le);
 		}
 		send_report(iface, addr, buf->buf, buf->wpos);
-		buf_free(buf);
+		ibuf_free(buf);
 	}
 }
diff --git a/usr.sbin/ldpd/address.c b/usr.sbin/ldpd/address.c
index 54d60c0f0d0..e0bf23d0e11 100644
--- a/usr.sbin/ldpd/address.c
+++ b/usr.sbin/ldpd/address.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: address.c,v 1.4 2010/02/25 17:40:46 claudio Exp $ */
+/*	$OpenBSD: address.c,v 1.5 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
@@ -39,12 +39,12 @@
 
 extern struct ldpd_conf        *leconf;
 
-void	gen_address_list_tlv(struct buf *, struct iface *, u_int16_t);
+void	gen_address_list_tlv(struct ibuf *, struct iface *, u_int16_t);
 
 void
 send_address(struct nbr *nbr, struct iface *iface)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 	struct iface	*niface;
 	u_int16_t	 size, iface_count = 0;
 
@@ -53,7 +53,7 @@ send_address(struct nbr *nbr, struct iface *iface)
 
 	log_debug("send_address: neighbor ID %s", inet_ntoa(nbr->id));
 
-	if ((buf = buf_open(LDP_MAX_LEN)) == NULL)
+	if ((buf = ibuf_open(LDP_MAX_LEN)) == NULL)
 		fatal("send_address");
 
 	/* XXX: multiple address on the same iface? */
@@ -141,7 +141,7 @@ recv_address(struct nbr *nbr, char *buf, u_int16_t len)
 }
 
 void
-gen_address_list_tlv(struct buf *buf, struct iface *iface, u_int16_t size)
+gen_address_list_tlv(struct ibuf *buf, struct iface *iface, u_int16_t size)
 {
 	struct address_list_tlv	 alt;
 	struct iface		*niface;
@@ -155,19 +155,19 @@ gen_address_list_tlv(struct buf *buf, struct iface *iface, u_int16_t size)
 	/* XXX: just ipv4 for now */
 	alt.family = htons(ADDR_IPV4);
 
-	buf_add(buf, &alt, sizeof(alt));
+	ibuf_add(buf, &alt, sizeof(alt));
 
 	if (iface == NULL)
 		LIST_FOREACH(niface, &leconf->iface_list, entry)
-			buf_add(buf, &niface->addr, sizeof(niface->addr));
+			ibuf_add(buf, &niface->addr, sizeof(niface->addr));
 	else
-		buf_add(buf, &iface->addr, sizeof(iface->addr));
+		ibuf_add(buf, &iface->addr, sizeof(iface->addr));
 }
 
 void
 send_address_withdraw(struct nbr *nbr, struct iface *iface)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 	u_int16_t	 size;
 
 	if (nbr->iface->passive)
@@ -175,7 +175,7 @@ send_address_withdraw(struct nbr *nbr, struct iface *iface)
 
 	log_debug("send_address_withdraw: neighbor ID %s", inet_ntoa(nbr->id));
 
-	if ((buf = buf_open(LDP_MAX_LEN)) == NULL)
+	if ((buf = ibuf_open(LDP_MAX_LEN)) == NULL)
 		fatal("send_address_withdraw");
 
 	/* XXX: multiple address on the same iface? */
diff --git a/usr.sbin/ldpd/buffer.c b/usr.sbin/ldpd/buffer.c
index 603a53d60ff..256f37758cc 100644
--- a/usr.sbin/ldpd/buffer.c
+++ b/usr.sbin/ldpd/buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: buffer.c,v 1.4 2009/09/15 10:54:59 jacekm Exp $	*/
+/*	$OpenBSD: buffer.c,v 1.5 2010/05/26 13:56:07 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -28,16 +28,16 @@
 
 #include "imsg.h"
 
-int	buf_realloc(struct buf *, size_t);
-void	buf_enqueue(struct msgbuf *, struct buf *);
-void	buf_dequeue(struct msgbuf *, struct buf *);
+int	ibuf_realloc(struct ibuf *, size_t);
+void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
-struct buf *
-buf_open(size_t len)
+struct ibuf *
+ibuf_open(size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
-	if ((buf = calloc(1, sizeof(struct buf))) == NULL)
+	if ((buf = calloc(1, sizeof(struct ibuf))) == NULL)
 		return (NULL);
 	if ((buf->buf = malloc(len)) == NULL) {
 		free(buf);
@@ -49,15 +49,15 @@ buf_open(size_t len)
 	return (buf);
 }
 
-struct buf *
-buf_dynamic(size_t len, size_t max)
+struct ibuf *
+ibuf_dynamic(size_t len, size_t max)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (max < len)
 		return (NULL);
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
 	if (max > 0)
@@ -67,7 +67,7 @@ buf_dynamic(size_t len, size_t max)
 }
 
 int
-buf_realloc(struct buf *buf, size_t len)
+ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
 
@@ -87,10 +87,10 @@ buf_realloc(struct buf *buf, size_t len)
 }
 
 int
-buf_add(struct buf *buf, const void *data, size_t len)
+ibuf_add(struct ibuf *buf, const void *data, size_t len)
 {
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (-1);
 
 	memcpy(buf->buf + buf->wpos, data, len);
@@ -99,12 +99,12 @@ buf_add(struct buf *buf, const void *data, size_t len)
 }
 
 void *
-buf_reserve(struct buf *buf, size_t len)
+ibuf_reserve(struct ibuf *buf, size_t len)
 {
 	void	*b;
 
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (NULL);
 
 	b = buf->buf + buf->wpos;
@@ -113,7 +113,7 @@ buf_reserve(struct buf *buf, size_t len)
 }
 
 void *
-buf_seek(struct buf *buf, size_t pos, size_t len)
+ibuf_seek(struct ibuf *buf, size_t pos, size_t len)
 {
 	/* only allowed to seek in already written parts */
 	if (pos + len > buf->wpos)
@@ -123,28 +123,28 @@ buf_seek(struct buf *buf, size_t pos, size_t len)
 }
 
 size_t
-buf_size(struct buf *buf)
+ibuf_size(struct ibuf *buf)
 {
 	return (buf->wpos);
 }
 
 size_t
-buf_left(struct buf *buf)
+ibuf_left(struct ibuf *buf)
 {
 	return (buf->max - buf->wpos);
 }
 
 void
-buf_close(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_close(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	buf_enqueue(msgbuf, buf);
+	ibuf_enqueue(msgbuf, buf);
 }
 
 int
-buf_write(struct msgbuf *msgbuf)
+ibuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t	n;
 
@@ -176,7 +176,7 @@ buf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_free(struct buf *buf)
+ibuf_free(struct ibuf *buf)
 {
 	free(buf->buf);
 	free(buf);
@@ -193,14 +193,14 @@ msgbuf_init(struct msgbuf *msgbuf)
 void
 msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 {
-	struct buf	*buf, *next;
+	struct ibuf	*buf, *next;
 
 	for (buf = TAILQ_FIRST(&msgbuf->bufs); buf != NULL && n > 0;
 	    buf = next) {
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
-			buf_dequeue(msgbuf, buf);
+			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
 			n = 0;
@@ -211,17 +211,17 @@ msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 void
 msgbuf_clear(struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
-		buf_dequeue(msgbuf, buf);
+		ibuf_dequeue(msgbuf, buf);
 }
 
 int
 msgbuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t		 n;
 	struct msghdr	 msg;
@@ -284,14 +284,14 @@ msgbuf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_enqueue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
 void
-buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 
@@ -299,5 +299,5 @@ buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
 		close(buf->fd);
 
 	msgbuf->queued--;
-	buf_free(buf);
+	ibuf_free(buf);
 }
diff --git a/usr.sbin/ldpd/hello.c b/usr.sbin/ldpd/hello.c
index 4712a9e782f..d6cb184727e 100644
--- a/usr.sbin/ldpd/hello.c
+++ b/usr.sbin/ldpd/hello.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hello.c,v 1.5 2010/05/19 15:28:51 claudio Exp $ */
+/*	$OpenBSD: hello.c,v 1.6 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
@@ -39,14 +39,14 @@
 struct hello_prms_tlv	*tlv_decode_hello_prms(char *, u_int16_t);
 int			 tlv_decode_opt_hello_prms(char *, u_int16_t,
 			    struct in_addr *, u_int32_t *);
-int			 gen_hello_prms_tlv(struct iface *, struct buf *,
+int			 gen_hello_prms_tlv(struct iface *, struct ibuf *,
 			    u_int16_t);
 
 int
 send_hello(struct iface *iface)
 {
 	struct sockaddr_in	 dst;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	u_int16_t		 size;
 
 	dst.sin_port = htons(LDP_PORT);
@@ -57,7 +57,7 @@ send_hello(struct iface *iface)
 	if (iface->passive)
 		return (0);
 
-	if ((buf = buf_open(LDP_MAX_LEN)) == NULL)
+	if ((buf = ibuf_open(LDP_MAX_LEN)) == NULL)
 		fatal("send_hello");
 
 	size = LDP_HDR_SIZE + sizeof(struct ldp_msg) +
@@ -74,7 +74,7 @@ send_hello(struct iface *iface)
 	gen_hello_prms_tlv(iface, buf, size);
 
 	send_packet(iface, buf->buf, buf->wpos, &dst);
-	buf_free(buf);
+	ibuf_free(buf);
 
 	return (0);
 }
@@ -151,7 +151,7 @@ recv_hello(struct iface *iface, struct in_addr src, char *buf, u_int16_t len)
 }
 
 int
-gen_hello_prms_tlv(struct iface *iface, struct buf *buf, u_int16_t size)
+gen_hello_prms_tlv(struct iface *iface, struct ibuf *buf, u_int16_t size)
 {
 	struct hello_prms_tlv	parms;
 
@@ -165,7 +165,7 @@ gen_hello_prms_tlv(struct iface *iface, struct buf *buf, u_int16_t size)
 	parms.holdtime = htons(iface->holdtime);
 	parms.reserved = 0;
 
-	return (buf_add(buf, &parms, sizeof(parms)));
+	return (ibuf_add(buf, &parms, sizeof(parms)));
 }
 
 struct hello_prms_tlv *
diff --git a/usr.sbin/ldpd/imsg.c b/usr.sbin/ldpd/imsg.c
index c87867354b9..798511b290a 100644
--- a/usr.sbin/ldpd/imsg.c
+++ b/usr.sbin/ldpd/imsg.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.8 2010/04/07 18:09:39 nicm Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.9 2010/05/26 13:56:07 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -135,7 +135,7 @@ int
 imsg_compose(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, void *data, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf, type, peerid, pid, datalen)) == NULL)
 		return (-1);
@@ -154,7 +154,7 @@ int
 imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, const struct iovec *iov, int iovcnt)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	int		 i, datalen = 0;
 
 	for (i = 0; i < iovcnt; i++)
@@ -175,11 +175,11 @@ imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 /* ARGSUSED */
-struct buf *
+struct ibuf *
 imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	struct imsg_hdr	 hdr;
 
 	datalen += IMSG_HEADER_SIZE;
@@ -193,7 +193,7 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 	hdr.peerid = peerid;
 	if ((hdr.pid = pid) == 0)
 		hdr.pid = ibuf->pid;
-	if ((wbuf = buf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
+	if ((wbuf = ibuf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
 		return (NULL);
 	}
 	if (imsg_add(wbuf, &hdr, sizeof(hdr)) == -1)
@@ -203,18 +203,18 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 int
-imsg_add(struct buf *msg, void *data, u_int16_t datalen)
+imsg_add(struct ibuf *msg, void *data, u_int16_t datalen)
 {
 	if (datalen)
-		if (buf_add(msg, data, datalen) == -1) {
-			buf_free(msg);
+		if (ibuf_add(msg, data, datalen) == -1) {
+			ibuf_free(msg);
 			return (-1);
 		}
 	return (datalen);
 }
 
 void
-imsg_close(struct imsgbuf *ibuf, struct buf *msg)
+imsg_close(struct imsgbuf *ibuf, struct ibuf *msg)
 {
 	struct imsg_hdr	*hdr;
 
@@ -226,7 +226,7 @@ imsg_close(struct imsgbuf *ibuf, struct buf *msg)
 
 	hdr->len = (u_int16_t)msg->wpos;
 
-	buf_close(&ibuf->w, msg);
+	ibuf_close(&ibuf->w, msg);
 }
 
 void
diff --git a/usr.sbin/ldpd/imsg.h b/usr.sbin/ldpd/imsg.h
index 9fd3f2f4964..43564710bb2 100644
--- a/usr.sbin/ldpd/imsg.h
+++ b/usr.sbin/ldpd/imsg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.h,v 1.5 2010/04/27 21:04:04 nicm Exp $	*/
+/*	$OpenBSD: imsg.h,v 1.6 2010/05/26 13:56:07 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -18,12 +18,12 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define READ_BUF_SIZE		65535
+#define IBUF_READ_SIZE		65535
 #define IMSG_HEADER_SIZE	sizeof(struct imsg_hdr)
 #define MAX_IMSGSIZE		16384
 
-struct buf {
-	TAILQ_ENTRY(buf)	 entry;
+struct ibuf {
+	TAILQ_ENTRY(ibuf)	 entry;
 	u_char			*buf;
 	size_t			 size;
 	size_t			 max;
@@ -33,13 +33,13 @@ struct buf {
 };
 
 struct msgbuf {
-	TAILQ_HEAD(, buf)	 bufs;
+	TAILQ_HEAD(, ibuf)	 bufs;
 	u_int32_t		 queued;
 	int			 fd;
 };
 
-struct buf_read {
-	u_char			 buf[READ_BUF_SIZE];
+struct ibuf_read {
+	u_char			 buf[IBUF_READ_SIZE];
 	u_char			*rptr;
 	size_t			 wpos;
 };
@@ -51,7 +51,7 @@ struct imsg_fd {
 
 struct imsgbuf {
 	TAILQ_HEAD(, imsg_fd)	 fds;
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	int			 fd;
 	pid_t			 pid;
@@ -75,16 +75,16 @@ struct imsg {
 
 
 /* buffer.c */
-struct buf	*buf_open(size_t);
-struct buf	*buf_dynamic(size_t, size_t);
-int		 buf_add(struct buf *, const void *, size_t);
-void		*buf_reserve(struct buf *, size_t);
-void		*buf_seek(struct buf *, size_t, size_t);
-size_t		 buf_size(struct buf *);
-size_t		 buf_left(struct buf *);
-void		 buf_close(struct msgbuf *, struct buf *);
-int		 buf_write(struct msgbuf *);
-void		 buf_free(struct buf *);
+struct ibuf	*ibuf_open(size_t);
+struct ibuf	*ibuf_dynamic(size_t, size_t);
+int		 ibuf_add(struct ibuf *, const void *, size_t);
+void		*ibuf_reserve(struct ibuf *, size_t);
+void		*ibuf_seek(struct ibuf *, size_t, size_t);
+size_t		 ibuf_size(struct ibuf *);
+size_t		 ibuf_left(struct ibuf *);
+void		 ibuf_close(struct msgbuf *, struct ibuf *);
+int		 ibuf_write(struct msgbuf *);
+void		 ibuf_free(struct ibuf *);
 void		 msgbuf_init(struct msgbuf *);
 void		 msgbuf_clear(struct msgbuf *);
 int		 msgbuf_write(struct msgbuf *);
@@ -98,10 +98,10 @@ int	 imsg_compose(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 int	 imsg_composev(struct imsgbuf *, u_int32_t, u_int32_t,  pid_t,
 	    int, const struct iovec *, int);
-struct buf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
+struct ibuf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    u_int16_t);
-int	 imsg_add(struct buf *, void *, u_int16_t);
-void	 imsg_close(struct imsgbuf *, struct buf *);
+int	 imsg_add(struct ibuf *, void *, u_int16_t);
+void	 imsg_close(struct imsgbuf *, struct ibuf *);
 void	 imsg_free(struct imsg *);
 int	 imsg_flush(struct imsgbuf *);
 void	 imsg_clear(struct imsgbuf *);
diff --git a/usr.sbin/ldpd/init.c b/usr.sbin/ldpd/init.c
index b8f1601d9a1..31556a670e2 100644
--- a/usr.sbin/ldpd/init.c
+++ b/usr.sbin/ldpd/init.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: init.c,v 1.4 2010/02/25 17:40:46 claudio Exp $ */
+/*	$OpenBSD: init.c,v 1.5 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
@@ -37,12 +37,12 @@
 #include "log.h"
 #include "ldpe.h"
 
-int	gen_init_prms_tlv(struct buf *, struct nbr *, u_int16_t);
+int	gen_init_prms_tlv(struct ibuf *, struct nbr *, u_int16_t);
 
 void
 send_init(struct nbr *nbr)
 {
-	struct buf		*buf;
+	struct ibuf		*buf;
 	u_int16_t		 size;
 
 	if (nbr->iface->passive)
@@ -50,7 +50,7 @@ send_init(struct nbr *nbr)
 
 	log_debug("send_init: neighbor ID %s", inet_ntoa(nbr->id));
 
-	if ((buf = buf_open(LDP_MAX_LEN)) == NULL)
+	if ((buf = ibuf_open(LDP_MAX_LEN)) == NULL)
 		fatal("send_init");
 
 	size = LDP_HDR_SIZE + sizeof(struct ldp_msg) + SESS_PRMS_SIZE;
@@ -105,7 +105,7 @@ recv_init(struct nbr *nbr, char *buf, u_int16_t len)
 }
 
 int
-gen_init_prms_tlv(struct buf *buf, struct nbr *nbr, u_int16_t size)
+gen_init_prms_tlv(struct ibuf *buf, struct nbr *nbr, u_int16_t size)
 {
 	struct sess_prms_tlv	parms;
 
@@ -124,5 +124,5 @@ gen_init_prms_tlv(struct buf *buf, struct nbr *nbr, u_int16_t size)
 	/* XXX: nbr lspace */
 	parms.lspace_id = 0;
 
-	return (buf_add(buf, &parms, SESS_PRMS_SIZE));
+	return (ibuf_add(buf, &parms, SESS_PRMS_SIZE));
 }
diff --git a/usr.sbin/ldpd/keepalive.c b/usr.sbin/ldpd/keepalive.c
index ccf3d997668..2e9152a1b4e 100644
--- a/usr.sbin/ldpd/keepalive.c
+++ b/usr.sbin/ldpd/keepalive.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: keepalive.c,v 1.5 2010/02/25 17:40:46 claudio Exp $ */
+/*	$OpenBSD: keepalive.c,v 1.6 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
@@ -40,13 +40,13 @@
 void
 send_keepalive(struct nbr *nbr)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 	u_int16_t	 size;
 
 	if (nbr->iface->passive)
 		return;
 
-	if ((buf = buf_open(LDP_MAX_LEN)) == NULL)
+	if ((buf = ibuf_open(LDP_MAX_LEN)) == NULL)
 		fatal("send_keepalive");
 
 	size = LDP_HDR_SIZE + sizeof(struct ldp_msg);
diff --git a/usr.sbin/ldpd/labelmapping.c b/usr.sbin/ldpd/labelmapping.c
index 966fec475dd..21f99f0a06d 100644
--- a/usr.sbin/ldpd/labelmapping.c
+++ b/usr.sbin/ldpd/labelmapping.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: labelmapping.c,v 1.10 2010/05/25 09:40:10 claudio Exp $ */
+/*	$OpenBSD: labelmapping.c,v 1.11 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
@@ -37,8 +37,8 @@
 #include "log.h"
 #include "ldpe.h"
 
-void		gen_fec_tlv(struct buf *, u_int32_t, u_int8_t);
-void		gen_label_tlv(struct buf *, u_int32_t);
+void		gen_fec_tlv(struct ibuf *, u_int32_t, u_int8_t);
+void		gen_label_tlv(struct ibuf *, u_int32_t);
 
 u_int32_t	tlv_decode_label(struct label_tlv *);
 int		tlv_decode_fec_elm(char *, u_int16_t, u_int8_t *, u_int32_t *,
@@ -48,7 +48,7 @@ int		tlv_decode_fec_elm(char *, u_int16_t, u_int8_t *, u_int32_t *,
 void
 send_labelmapping(struct nbr *nbr)
 {
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct mapping_entry	*me;
 	struct ldp_hdr		*ldp_hdr;
 	u_int16_t		 tlv_size, size;
@@ -58,7 +58,7 @@ send_labelmapping(struct nbr *nbr)
 
 	log_debug("send_labelmapping: neighbor ID %s", inet_ntoa(nbr->id));
 
-	if ((buf = buf_open(LDP_MAX_LEN)) == NULL)
+	if ((buf = ibuf_open(LDP_MAX_LEN)) == NULL)
 		fatal("send_labelmapping");
 
 	/* real size will be set up later */
@@ -78,7 +78,7 @@ send_labelmapping(struct nbr *nbr)
 	/* XXX: should we remove them first? */
 	nbr_mapping_list_clr(nbr, &nbr->mapping_list);
 
-	ldp_hdr = buf_seek(buf, 0, sizeof(struct ldp_hdr));
+	ldp_hdr = ibuf_seek(buf, 0, sizeof(struct ldp_hdr));
 	ldp_hdr->length = htons(size);
 
 	evbuf_enqueue(&nbr->wbuf, buf);
@@ -161,7 +161,7 @@ recv_labelmapping(struct nbr *nbr, char *buf, u_int16_t len)
 void
 send_labelrequest(struct nbr *nbr)
 {
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct mapping_entry	*me;
 	struct ldp_hdr		*ldp_hdr;
 	u_int16_t		 tlv_size, size;
@@ -171,7 +171,7 @@ send_labelrequest(struct nbr *nbr)
 
 	log_debug("send_labelrequest: neighbor ID %s", inet_ntoa(nbr->id));
 
-	if ((buf = buf_open(LDP_MAX_LEN)) == NULL)
+	if ((buf = ibuf_open(LDP_MAX_LEN)) == NULL)
 		fatal("send_labelrequest");
 
 	/* real size will be set up later */
@@ -190,7 +190,7 @@ send_labelrequest(struct nbr *nbr)
 	/* XXX: should we remove them first? */
 	nbr_mapping_list_clr(nbr, &nbr->request_list);
 
-	ldp_hdr = buf_seek(buf, 0, sizeof(struct ldp_hdr));
+	ldp_hdr = ibuf_seek(buf, 0, sizeof(struct ldp_hdr));
 	ldp_hdr->length = htons(size);
 
 	evbuf_enqueue(&nbr->wbuf, buf);
@@ -260,7 +260,7 @@ recv_labelrequest(struct nbr *nbr, char *buf, u_int16_t len)
 void
 send_labelwithdraw(struct nbr *nbr)
 {
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct mapping_entry	*me;
 	struct ldp_hdr		*ldp_hdr;
 	u_int16_t		 tlv_size, size;
@@ -270,7 +270,7 @@ send_labelwithdraw(struct nbr *nbr)
 
 	log_debug("send_labelwithdraw: neighbor ID %s", inet_ntoa(nbr->id));
 
-	if ((buf = buf_open(LDP_MAX_LEN)) == NULL)
+	if ((buf = ibuf_open(LDP_MAX_LEN)) == NULL)
 		fatal("send_labelwithdraw");
 
 	/* real size will be set up later */
@@ -297,7 +297,7 @@ send_labelwithdraw(struct nbr *nbr)
 	/* XXX: should we remove them first? */
 	nbr_mapping_list_clr(nbr, &nbr->withdraw_list);
 
-	ldp_hdr = buf_seek(buf, 0, sizeof(struct ldp_hdr));
+	ldp_hdr = ibuf_seek(buf, 0, sizeof(struct ldp_hdr));
 	ldp_hdr->length = htons(size);
 
 	evbuf_enqueue(&nbr->wbuf, buf);
@@ -391,7 +391,7 @@ recv_labelwithdraw(struct nbr *nbr, char *buf, u_int16_t len)
 void
 send_labelrelease(struct nbr *nbr)
 {
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct mapping_entry	*me;
 	struct ldp_hdr		*ldp_hdr;
 	u_int16_t		 tlv_size, size;
@@ -401,7 +401,7 @@ send_labelrelease(struct nbr *nbr)
 
 	log_debug("send_labelrelease: neighbor ID %s", inet_ntoa(nbr->id));
 
-	if ((buf = buf_open(LDP_MAX_LEN)) == NULL)
+	if ((buf = ibuf_open(LDP_MAX_LEN)) == NULL)
 		fatal("send_labelrelease");
 
 	/* real size will be set up later */
@@ -428,7 +428,7 @@ send_labelrelease(struct nbr *nbr)
 	/* XXX: should we remove them first? */
 	nbr_mapping_list_clr(nbr, &nbr->release_list);
 
-	ldp_hdr = buf_seek(buf, 0, sizeof(struct ldp_hdr));
+	ldp_hdr = ibuf_seek(buf, 0, sizeof(struct ldp_hdr));
 	ldp_hdr->length = htons(size);
 
 	evbuf_enqueue(&nbr->wbuf, buf);
@@ -522,7 +522,7 @@ recv_labelrelease(struct nbr *nbr, char *buf, u_int16_t len)
 void
 send_labelabortreq(struct nbr *nbr)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 	u_int16_t	 size;
 
 	if (nbr->iface->passive)
@@ -530,7 +530,7 @@ send_labelabortreq(struct nbr *nbr)
 
 	log_debug("send_labelabortreq: neighbor ID %s", inet_ntoa(nbr->id));
 
-	if ((buf = buf_open(LDP_MAX_LEN)) == NULL)
+	if ((buf = ibuf_open(LDP_MAX_LEN)) == NULL)
 		fatal("send_labelabortreq");
 
 	size = LDP_HDR_SIZE + sizeof(struct ldp_msg);
@@ -573,7 +573,7 @@ recv_labelabortreq(struct nbr *nbr, char *buf, u_int16_t len)
 
 /* Other TLV related functions */
 void
-gen_fec_tlv(struct buf *buf, u_int32_t prefix, u_int8_t prefixlen)
+gen_fec_tlv(struct ibuf *buf, u_int32_t prefix, u_int8_t prefixlen)
 {
 	struct fec_tlv	ft;
 	u_int8_t	type;
@@ -585,20 +585,20 @@ gen_fec_tlv(struct buf *buf, u_int32_t prefix, u_int8_t prefixlen)
 	ft.length = htons(sizeof(type) + sizeof(family) + sizeof(prefixlen) +
 	    len);
 
-	buf_add(buf, &ft, sizeof(ft));
+	ibuf_add(buf, &ft, sizeof(ft));
 
 	type = FEC_PREFIX;
 	family = htons(FEC_IPV4);
 
-	buf_add(buf, &type, sizeof(type));
-	buf_add(buf, &family, sizeof(family));
-	buf_add(buf, &prefixlen, sizeof(prefixlen));
+	ibuf_add(buf, &type, sizeof(type));
+	ibuf_add(buf, &family, sizeof(family));
+	ibuf_add(buf, &prefixlen, sizeof(prefixlen));
 	if (len)
-		buf_add(buf, &prefix, len);
+		ibuf_add(buf, &prefix, len);
 }
 
 void
-gen_label_tlv(struct buf *buf, u_int32_t label)
+gen_label_tlv(struct ibuf *buf, u_int32_t label)
 {
 	struct label_tlv	lt;
 
@@ -606,7 +606,7 @@ gen_label_tlv(struct buf *buf, u_int32_t label)
 	lt.length = htons(sizeof(label));
 	lt.label = htonl(label);
 
-	buf_add(buf, &lt, sizeof(lt));
+	ibuf_add(buf, &lt, sizeof(lt));
 }
 
 u_int32_t
diff --git a/usr.sbin/ldpd/ldpd.c b/usr.sbin/ldpd/ldpd.c
index 290822d8ea0..bca79578bb6 100644
--- a/usr.sbin/ldpd/ldpd.c
+++ b/usr.sbin/ldpd/ldpd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ldpd.c,v 1.7 2010/03/03 10:17:05 claudio Exp $ */
+/*	$OpenBSD: ldpd.c,v 1.8 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
@@ -528,9 +528,9 @@ imsg_compose_event(struct imsgev *iev, u_int16_t type,
 }
 
 void
-evbuf_enqueue(struct evbuf *eb, struct buf *buf)
+evbuf_enqueue(struct evbuf *eb, struct ibuf *buf)
 {
-	buf_close(&eb->wbuf, buf);
+	ibuf_close(&eb->wbuf, buf);
 	evbuf_event_add(eb);
 }
 
diff --git a/usr.sbin/ldpd/ldpd.h b/usr.sbin/ldpd/ldpd.h
index 1947219051c..236065e1900 100644
--- a/usr.sbin/ldpd/ldpd.h
+++ b/usr.sbin/ldpd/ldpd.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ldpd.h,v 1.20 2010/05/25 13:29:45 claudio Exp $ */
+/*	$OpenBSD: ldpd.h,v 1.21 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
@@ -422,7 +422,7 @@ void	merge_config(struct ldpd_conf *, struct ldpd_conf *);
 int	imsg_compose_event(struct imsgev *, u_int16_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 void	imsg_event_add(struct imsgev *);
-void	evbuf_enqueue(struct evbuf *, struct buf *);
+void	evbuf_enqueue(struct evbuf *, struct ibuf *);
 void	evbuf_event_add(struct evbuf *);
 void	evbuf_init(struct evbuf *, int, void (*)(int, short, void *), void *);
 void	evbuf_clear(struct evbuf *);
diff --git a/usr.sbin/ldpd/ldpe.c b/usr.sbin/ldpd/ldpe.c
index 6b634834cfb..14a410f38c2 100644
--- a/usr.sbin/ldpd/ldpe.c
+++ b/usr.sbin/ldpd/ldpe.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ldpe.c,v 1.9 2010/05/19 15:28:51 claudio Exp $ */
+/*	$OpenBSD: ldpe.c,v 1.10 2010/05/26 13:56:07 nicm Exp $ */
 
 /*
  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
@@ -210,7 +210,7 @@ ldpe(struct ldpd_conf *xconf, int pipe_parent2ldpe[2], int pipe_ldpe2lde[2],
 	TAILQ_INIT(&ctl_conns);
 	control_listen();
 
-	if ((pkt_ptr = calloc(1, READ_BUF_SIZE)) == NULL)
+	if ((pkt_ptr = calloc(1, IBUF_READ_SIZE)) == NULL)
 		fatal("ldpe");
 
 	/* start interfaces */
diff --git a/usr.sbin/ldpd/ldpe.h b/usr.sbin/ldpd/ldpe.h
index 88bc5355383..f0fe3d05b3e 100644
--- a/usr.sbin/ldpd/ldpe.h
+++ b/usr.sbin/ldpd/ldpe.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ldpe.h,v 1.9 2010/05/19 15:28:51 claudio Exp $ */
+/*	$OpenBSD: ldpe.h,v 1.10 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org>
@@ -54,7 +54,7 @@ struct nbr {
 	struct in_addr		 addr;
 	struct in_addr		 id;
 
-	struct buf_read		*rbuf;
+	struct ibuf_read	*rbuf;
 	struct iface		*iface;
 
 	time_t			 uptime;
@@ -89,7 +89,7 @@ int	 recv_keepalive(struct nbr *, char *, u_int16_t);
 
 /* notification.c */
 void	 send_notification_nbr(struct nbr *, u_int32_t, u_int32_t, u_int32_t);
-struct buf	*send_notification(u_int32_t, struct iface *, u_int32_t,
+struct ibuf	*send_notification(u_int32_t, struct iface *, u_int32_t,
 	    u_int32_t);
 int	 recv_notification(struct nbr *, char *, u_int16_t);
 
@@ -189,8 +189,8 @@ void			 nbr_mapping_list_clr(struct nbr *,
 struct ctl_nbr	*nbr_to_ctl(struct nbr *);
 
 /* packet.c */
-int	 gen_ldp_hdr(struct buf *, struct iface *, u_int16_t);
-int	 gen_msg_tlv(struct buf *, u_int32_t, u_int16_t);
+int	 gen_ldp_hdr(struct ibuf *, struct iface *, u_int16_t);
+int	 gen_msg_tlv(struct ibuf *, u_int32_t, u_int16_t);
 int	 send_packet(struct iface *, void *, size_t, struct sockaddr_in *);
 void	 disc_recv_packet(int, short, void *);
 void	 session_accept(int, short, void *);
diff --git a/usr.sbin/ldpd/neighbor.c b/usr.sbin/ldpd/neighbor.c
index ad445344ac4..db1e1f9dc86 100644
--- a/usr.sbin/ldpd/neighbor.c
+++ b/usr.sbin/ldpd/neighbor.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: neighbor.c,v 1.14 2010/05/25 09:26:12 claudio Exp $ */
+/*	$OpenBSD: neighbor.c,v 1.15 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
@@ -229,7 +229,7 @@ nbr_new(u_int32_t nbr_id, u_int16_t lspace, struct iface *iface)
 
 	if ((nbr = calloc(1, sizeof(*nbr))) == NULL)
 		fatal("nbr_new");
-	if ((nbr->rbuf = calloc(1, sizeof(struct buf_read))) == NULL)
+	if ((nbr->rbuf = calloc(1, sizeof(struct ibuf_read))) == NULL)
 		fatal("nbr_new");
 
 	nbr->state = NBR_STA_DOWN;
diff --git a/usr.sbin/ldpd/notification.c b/usr.sbin/ldpd/notification.c
index 0708a6027a1..52650908a09 100644
--- a/usr.sbin/ldpd/notification.c
+++ b/usr.sbin/ldpd/notification.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: notification.c,v 1.6 2010/05/14 13:49:09 claudio Exp $ */
+/*	$OpenBSD: notification.c,v 1.7 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
@@ -37,13 +37,13 @@
 #include "log.h"
 #include "ldpe.h"
 
-int	gen_status_tlv(struct buf *, u_int32_t, u_int32_t, u_int32_t);
+int	gen_status_tlv(struct ibuf *, u_int32_t, u_int32_t, u_int32_t);
 
 void
 send_notification_nbr(struct nbr *nbr, u_int32_t status, u_int32_t msgid,
     u_int32_t type)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (nbr->iface->passive)
 		return;
@@ -52,14 +52,14 @@ send_notification_nbr(struct nbr *nbr, u_int32_t status, u_int32_t msgid,
 	evbuf_enqueue(&nbr->wbuf, buf);
 }
 
-struct buf *
+struct ibuf *
 send_notification(u_int32_t status, struct iface *iface, u_int32_t msgid,
     u_int32_t type)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 	u_int16_t	 size;
 
-	if ((buf = buf_open(LDP_MAX_LEN)) == NULL)
+	if ((buf = ibuf_open(LDP_MAX_LEN)) == NULL)
 		fatal("send_notification");
 
 	size = LDP_HDR_SIZE + sizeof(struct ldp_msg) + STATUS_SIZE;
@@ -121,7 +121,7 @@ recv_notification(struct nbr *nbr, char *buf, u_int16_t len)
 }
 
 int
-gen_status_tlv(struct buf *buf, u_int32_t status, u_int32_t msgid,
+gen_status_tlv(struct ibuf *buf, u_int32_t status, u_int32_t msgid,
     u_int32_t type)
 {
 	struct status_tlv	st;
@@ -135,5 +135,5 @@ gen_status_tlv(struct buf *buf, u_int32_t status, u_int32_t msgid,
 	st.msg_id = msgid;
 	st.msg_type = type;
 
-	return (buf_add(buf, &st, STATUS_SIZE));
+	return (ibuf_add(buf, &st, STATUS_SIZE));
 }
diff --git a/usr.sbin/ldpd/packet.c b/usr.sbin/ldpd/packet.c
index df224545a4d..12613b7c454 100644
--- a/usr.sbin/ldpd/packet.c
+++ b/usr.sbin/ldpd/packet.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: packet.c,v 1.11 2010/05/14 13:49:09 claudio Exp $ */
+/*	$OpenBSD: packet.c,v 1.12 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
@@ -43,12 +43,12 @@ int		 ldp_hdr_sanity_check(struct ldp_hdr *, u_int16_t,
 		    const struct iface *);
 struct iface	*find_iface(struct ldpd_conf *, unsigned int, struct in_addr);
 struct iface	*session_find_iface(struct ldpd_conf *, struct in_addr);
-ssize_t		 session_get_pdu(struct buf_read *, char **);
+ssize_t		 session_get_pdu(struct ibuf_read *, char **);
 
 static int	 msgcnt = 0;
 
 int
-gen_ldp_hdr(struct buf *buf, struct iface *iface, u_int16_t size)
+gen_ldp_hdr(struct ibuf *buf, struct iface *iface, u_int16_t size)
 {
 	struct ldp_hdr	ldp_hdr;
 
@@ -62,11 +62,11 @@ gen_ldp_hdr(struct buf *buf, struct iface *iface, u_int16_t size)
 	ldp_hdr.lsr_id = ldpe_router_id();
 	ldp_hdr.lspace_id = iface->lspace_id;
 
-	return (buf_add(buf, &ldp_hdr, LDP_HDR_SIZE));
+	return (ibuf_add(buf, &ldp_hdr, LDP_HDR_SIZE));
 }
 
 int
-gen_msg_tlv(struct buf *buf, u_int32_t type, u_int16_t size)
+gen_msg_tlv(struct ibuf *buf, u_int32_t type, u_int16_t size)
 {
 	struct ldp_msg	msg;
 
@@ -78,7 +78,7 @@ gen_msg_tlv(struct buf *buf, u_int32_t type, u_int16_t size)
 	msg.length = htons(size);
 	msg.msgid = htonl(++msgcnt);
 
-	return (buf_add(buf, &msg, sizeof(msg)));
+	return (ibuf_add(buf, &msg, sizeof(msg)));
 }
 
 /* send and receive packets */
@@ -131,7 +131,7 @@ disc_recv_packet(int fd, short event, void *bula)
 	/* setup buffer */
 	bzero(&msg, sizeof(msg));
 	iov.iov_base = buf = pkt_ptr;
-	iov.iov_len = READ_BUF_SIZE;
+	iov.iov_len = IBUF_READ_SIZE;
 	msg.msg_name = &src;
 	msg.msg_namelen = sizeof(src);
 	msg.msg_iov = &iov;
@@ -278,12 +278,12 @@ session_accept(int fd, short event, void *bula)
 
 	nbr = nbr_find_ip(iface, src.sin_addr.s_addr);
 	if (nbr == NULL) {
-		struct buf	*buf;
+		struct ibuf	*buf;
 		/* If there is no neighbor matching there is no
 		   Hello adjacency: try to send notification */
 		buf = send_notification(S_NO_HELLO, iface, 0, 0);
 		write(newfd, buf->buf, buf->wpos);
-		buf_free(buf);
+		ibuf_free(buf);
 		close(newfd);
 		return;
 	}
@@ -489,7 +489,7 @@ session_find_iface(struct ldpd_conf *xconf, struct in_addr src)
 }
 
 ssize_t
-session_get_pdu(struct buf_read *r, char **b)
+session_get_pdu(struct ibuf_read *r, char **b)
 {
 	struct ldp_hdr	l;
 	size_t		av, dlen, left;
diff --git a/usr.sbin/ntpd/buffer.c b/usr.sbin/ntpd/buffer.c
index c8a11378143..cf0cfedb9e0 100644
--- a/usr.sbin/ntpd/buffer.c
+++ b/usr.sbin/ntpd/buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: buffer.c,v 1.12 2009/09/15 10:54:59 jacekm Exp $	*/
+/*	$OpenBSD: buffer.c,v 1.13 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -28,16 +28,16 @@
 
 #include "imsg.h"
 
-int	buf_realloc(struct buf *, size_t);
-void	buf_enqueue(struct msgbuf *, struct buf *);
-void	buf_dequeue(struct msgbuf *, struct buf *);
+int	ibuf_realloc(struct ibuf *, size_t);
+void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
-struct buf *
-buf_open(size_t len)
+struct ibuf *
+ibuf_open(size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
-	if ((buf = calloc(1, sizeof(struct buf))) == NULL)
+	if ((buf = calloc(1, sizeof(struct ibuf))) == NULL)
 		return (NULL);
 	if ((buf->buf = malloc(len)) == NULL) {
 		free(buf);
@@ -49,15 +49,15 @@ buf_open(size_t len)
 	return (buf);
 }
 
-struct buf *
-buf_dynamic(size_t len, size_t max)
+struct ibuf *
+ibuf_dynamic(size_t len, size_t max)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (max < len)
 		return (NULL);
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
 	if (max > 0)
@@ -67,7 +67,7 @@ buf_dynamic(size_t len, size_t max)
 }
 
 int
-buf_realloc(struct buf *buf, size_t len)
+ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
 
@@ -87,10 +87,10 @@ buf_realloc(struct buf *buf, size_t len)
 }
 
 int
-buf_add(struct buf *buf, const void *data, size_t len)
+ibuf_add(struct ibuf *buf, const void *data, size_t len)
 {
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (-1);
 
 	memcpy(buf->buf + buf->wpos, data, len);
@@ -99,12 +99,12 @@ buf_add(struct buf *buf, const void *data, size_t len)
 }
 
 void *
-buf_reserve(struct buf *buf, size_t len)
+ibuf_reserve(struct ibuf *buf, size_t len)
 {
 	void	*b;
 
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (NULL);
 
 	b = buf->buf + buf->wpos;
@@ -113,7 +113,7 @@ buf_reserve(struct buf *buf, size_t len)
 }
 
 void *
-buf_seek(struct buf *buf, size_t pos, size_t len)
+ibuf_seek(struct ibuf *buf, size_t pos, size_t len)
 {
 	/* only allowed to seek in already written parts */
 	if (pos + len > buf->wpos)
@@ -123,28 +123,28 @@ buf_seek(struct buf *buf, size_t pos, size_t len)
 }
 
 size_t
-buf_size(struct buf *buf)
+ibuf_size(struct ibuf *buf)
 {
 	return (buf->wpos);
 }
 
 size_t
-buf_left(struct buf *buf)
+ibuf_left(struct ibuf *buf)
 {
 	return (buf->max - buf->wpos);
 }
 
 void
-buf_close(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_close(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	buf_enqueue(msgbuf, buf);
+	ibuf_enqueue(msgbuf, buf);
 }
 
 int
-buf_write(struct msgbuf *msgbuf)
+ibuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t	n;
 
@@ -176,7 +176,7 @@ buf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_free(struct buf *buf)
+ibuf_free(struct ibuf *buf)
 {
 	free(buf->buf);
 	free(buf);
@@ -193,14 +193,14 @@ msgbuf_init(struct msgbuf *msgbuf)
 void
 msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 {
-	struct buf	*buf, *next;
+	struct ibuf	*buf, *next;
 
 	for (buf = TAILQ_FIRST(&msgbuf->bufs); buf != NULL && n > 0;
 	    buf = next) {
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
-			buf_dequeue(msgbuf, buf);
+			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
 			n = 0;
@@ -211,17 +211,17 @@ msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 void
 msgbuf_clear(struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
-		buf_dequeue(msgbuf, buf);
+		ibuf_dequeue(msgbuf, buf);
 }
 
 int
 msgbuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t		 n;
 	struct msghdr	 msg;
@@ -284,14 +284,14 @@ msgbuf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_enqueue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
 void
-buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 
@@ -299,5 +299,5 @@ buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
 		close(buf->fd);
 
 	msgbuf->queued--;
-	buf_free(buf);
+	ibuf_free(buf);
 }
diff --git a/usr.sbin/ntpd/imsg.c b/usr.sbin/ntpd/imsg.c
index 43af5f85478..320e3c392ab 100644
--- a/usr.sbin/ntpd/imsg.c
+++ b/usr.sbin/ntpd/imsg.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.19 2010/04/07 18:09:39 nicm Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.20 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -135,7 +135,7 @@ int
 imsg_compose(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, void *data, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf, type, peerid, pid, datalen)) == NULL)
 		return (-1);
@@ -154,7 +154,7 @@ int
 imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, const struct iovec *iov, int iovcnt)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	int		 i, datalen = 0;
 
 	for (i = 0; i < iovcnt; i++)
@@ -175,11 +175,11 @@ imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 /* ARGSUSED */
-struct buf *
+struct ibuf *
 imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	struct imsg_hdr	 hdr;
 
 	datalen += IMSG_HEADER_SIZE;
@@ -193,7 +193,7 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 	hdr.peerid = peerid;
 	if ((hdr.pid = pid) == 0)
 		hdr.pid = ibuf->pid;
-	if ((wbuf = buf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
+	if ((wbuf = ibuf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
 		return (NULL);
 	}
 	if (imsg_add(wbuf, &hdr, sizeof(hdr)) == -1)
@@ -203,18 +203,18 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 int
-imsg_add(struct buf *msg, void *data, u_int16_t datalen)
+imsg_add(struct ibuf *msg, void *data, u_int16_t datalen)
 {
 	if (datalen)
-		if (buf_add(msg, data, datalen) == -1) {
-			buf_free(msg);
+		if (ibuf_add(msg, data, datalen) == -1) {
+			ibuf_free(msg);
 			return (-1);
 		}
 	return (datalen);
 }
 
 void
-imsg_close(struct imsgbuf *ibuf, struct buf *msg)
+imsg_close(struct imsgbuf *ibuf, struct ibuf *msg)
 {
 	struct imsg_hdr	*hdr;
 
@@ -226,7 +226,7 @@ imsg_close(struct imsgbuf *ibuf, struct buf *msg)
 
 	hdr->len = (u_int16_t)msg->wpos;
 
-	buf_close(&ibuf->w, msg);
+	ibuf_close(&ibuf->w, msg);
 }
 
 void
diff --git a/usr.sbin/ntpd/imsg.h b/usr.sbin/ntpd/imsg.h
index 9fd3f2f4964..4e914c08e18 100644
--- a/usr.sbin/ntpd/imsg.h
+++ b/usr.sbin/ntpd/imsg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.h,v 1.5 2010/04/27 21:04:04 nicm Exp $	*/
+/*	$OpenBSD: imsg.h,v 1.6 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -18,12 +18,12 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define READ_BUF_SIZE		65535
+#define IBUF_READ_SIZE		65535
 #define IMSG_HEADER_SIZE	sizeof(struct imsg_hdr)
 #define MAX_IMSGSIZE		16384
 
-struct buf {
-	TAILQ_ENTRY(buf)	 entry;
+struct ibuf {
+	TAILQ_ENTRY(ibuf)	 entry;
 	u_char			*buf;
 	size_t			 size;
 	size_t			 max;
@@ -33,13 +33,13 @@ struct buf {
 };
 
 struct msgbuf {
-	TAILQ_HEAD(, buf)	 bufs;
+	TAILQ_HEAD(, ibuf)	 bufs;
 	u_int32_t		 queued;
 	int			 fd;
 };
 
-struct buf_read {
-	u_char			 buf[READ_BUF_SIZE];
+struct ibuf_read {
+	u_char			 buf[IBUF_READ_SIZE];
 	u_char			*rptr;
 	size_t			 wpos;
 };
@@ -51,7 +51,7 @@ struct imsg_fd {
 
 struct imsgbuf {
 	TAILQ_HEAD(, imsg_fd)	 fds;
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	int			 fd;
 	pid_t			 pid;
@@ -75,16 +75,16 @@ struct imsg {
 
 
 /* buffer.c */
-struct buf	*buf_open(size_t);
-struct buf	*buf_dynamic(size_t, size_t);
-int		 buf_add(struct buf *, const void *, size_t);
-void		*buf_reserve(struct buf *, size_t);
-void		*buf_seek(struct buf *, size_t, size_t);
-size_t		 buf_size(struct buf *);
-size_t		 buf_left(struct buf *);
-void		 buf_close(struct msgbuf *, struct buf *);
-int		 buf_write(struct msgbuf *);
-void		 buf_free(struct buf *);
+struct ibuf	*ibuf_open(size_t);
+struct ibuf	*ibuf_dynamic(size_t, size_t);
+int		 ibuf_add(struct ibuf *, const void *, size_t);
+void		*ibuf_reserve(struct ibuf *, size_t);
+void		*ibuf_seek(struct ibuf *, size_t, size_t);
+size_t		 ibuf_size(struct ibuf *);
+size_t		 ibuf_left(struct ibuf *);
+void		 ibuf_close(struct msgbuf *, struct ibuf *);
+int		 ibuf_write(struct msgbuf *);
+void		 ibuf_free(struct ibuf *);
 void		 msgbuf_init(struct msgbuf *);
 void		 msgbuf_clear(struct msgbuf *);
 int		 msgbuf_write(struct msgbuf *);
@@ -98,10 +98,10 @@ int	 imsg_compose(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 int	 imsg_composev(struct imsgbuf *, u_int32_t, u_int32_t,  pid_t,
 	    int, const struct iovec *, int);
-struct buf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
+struct ibuf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    u_int16_t);
-int	 imsg_add(struct buf *, void *, u_int16_t);
-void	 imsg_close(struct imsgbuf *, struct buf *);
+int	 imsg_add(struct ibuf *, void *, u_int16_t);
+void	 imsg_close(struct imsgbuf *, struct ibuf *);
 void	 imsg_free(struct imsg *);
 int	 imsg_flush(struct imsgbuf *);
 void	 imsg_clear(struct imsgbuf *);
diff --git a/usr.sbin/ntpd/ntp_dns.c b/usr.sbin/ntpd/ntp_dns.c
index 13e43e20791..59d22a8b839 100644
--- a/usr.sbin/ntpd/ntp_dns.c
+++ b/usr.sbin/ntpd/ntp_dns.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ntp_dns.c,v 1.2 2009/02/10 16:41:39 stevesk Exp $ */
+/*	$OpenBSD: ntp_dns.c,v 1.3 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2003-2008 Henning Brauer <henning@openbsd.org>
@@ -121,7 +121,7 @@ dns_dispatch_imsg(void)
 	int			 n, cnt;
 	char			*name;
 	struct ntp_addr		*h, *hn;
-	struct buf		*buf;
+	struct ibuf		*buf;
 
 	if ((n = imsg_read(ibuf_dns)) == -1)
 		return (-1);
diff --git a/usr.sbin/ntpd/ntpd.c b/usr.sbin/ntpd/ntpd.c
index 796c6013d8e..066cbd0a75c 100644
--- a/usr.sbin/ntpd/ntpd.c
+++ b/usr.sbin/ntpd/ntpd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ntpd.c,v 1.66 2009/06/06 18:14:25 pyr Exp $ */
+/*	$OpenBSD: ntpd.c,v 1.67 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -266,7 +266,7 @@ dispatch_imsg(struct ntpd_conf *lconf)
 	double			 d;
 	char			*name;
 	struct ntp_addr		*h, *hn;
-	struct buf		*buf;
+	struct ibuf		*buf;
 
 	if ((n = imsg_read(ibuf)) == -1)
 		return (-1);
diff --git a/usr.sbin/ospf6d/buffer.c b/usr.sbin/ospf6d/buffer.c
index adba24d73d2..cea9406880a 100644
--- a/usr.sbin/ospf6d/buffer.c
+++ b/usr.sbin/ospf6d/buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: buffer.c,v 1.5 2009/09/15 10:54:59 jacekm Exp $	*/
+/*	$OpenBSD: buffer.c,v 1.6 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -28,16 +28,16 @@
 
 #include "imsg.h"
 
-int	buf_realloc(struct buf *, size_t);
-void	buf_enqueue(struct msgbuf *, struct buf *);
-void	buf_dequeue(struct msgbuf *, struct buf *);
+int	ibuf_realloc(struct ibuf *, size_t);
+void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
-struct buf *
-buf_open(size_t len)
+struct ibuf *
+ibuf_open(size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
-	if ((buf = calloc(1, sizeof(struct buf))) == NULL)
+	if ((buf = calloc(1, sizeof(struct ibuf))) == NULL)
 		return (NULL);
 	if ((buf->buf = malloc(len)) == NULL) {
 		free(buf);
@@ -49,15 +49,15 @@ buf_open(size_t len)
 	return (buf);
 }
 
-struct buf *
-buf_dynamic(size_t len, size_t max)
+struct ibuf *
+ibuf_dynamic(size_t len, size_t max)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (max < len)
 		return (NULL);
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
 	if (max > 0)
@@ -67,7 +67,7 @@ buf_dynamic(size_t len, size_t max)
 }
 
 int
-buf_realloc(struct buf *buf, size_t len)
+ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
 
@@ -87,10 +87,10 @@ buf_realloc(struct buf *buf, size_t len)
 }
 
 int
-buf_add(struct buf *buf, const void *data, size_t len)
+ibuf_add(struct ibuf *buf, const void *data, size_t len)
 {
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (-1);
 
 	memcpy(buf->buf + buf->wpos, data, len);
@@ -99,12 +99,12 @@ buf_add(struct buf *buf, const void *data, size_t len)
 }
 
 void *
-buf_reserve(struct buf *buf, size_t len)
+ibuf_reserve(struct ibuf *buf, size_t len)
 {
 	void	*b;
 
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (NULL);
 
 	b = buf->buf + buf->wpos;
@@ -113,7 +113,7 @@ buf_reserve(struct buf *buf, size_t len)
 }
 
 void *
-buf_seek(struct buf *buf, size_t pos, size_t len)
+ibuf_seek(struct ibuf *buf, size_t pos, size_t len)
 {
 	/* only allowed to seek in already written parts */
 	if (pos + len > buf->wpos)
@@ -123,28 +123,28 @@ buf_seek(struct buf *buf, size_t pos, size_t len)
 }
 
 size_t
-buf_size(struct buf *buf)
+ibuf_size(struct ibuf *buf)
 {
 	return (buf->wpos);
 }
 
 size_t
-buf_left(struct buf *buf)
+ibuf_left(struct ibuf *buf)
 {
 	return (buf->max - buf->wpos);
 }
 
 void
-buf_close(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_close(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	buf_enqueue(msgbuf, buf);
+	ibuf_enqueue(msgbuf, buf);
 }
 
 int
-buf_write(struct msgbuf *msgbuf)
+ibuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t	n;
 
@@ -176,7 +176,7 @@ buf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_free(struct buf *buf)
+ibuf_free(struct ibuf *buf)
 {
 	free(buf->buf);
 	free(buf);
@@ -193,14 +193,14 @@ msgbuf_init(struct msgbuf *msgbuf)
 void
 msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 {
-	struct buf	*buf, *next;
+	struct ibuf	*buf, *next;
 
 	for (buf = TAILQ_FIRST(&msgbuf->bufs); buf != NULL && n > 0;
 	    buf = next) {
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
-			buf_dequeue(msgbuf, buf);
+			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
 			n = 0;
@@ -211,17 +211,17 @@ msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 void
 msgbuf_clear(struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
-		buf_dequeue(msgbuf, buf);
+		ibuf_dequeue(msgbuf, buf);
 }
 
 int
 msgbuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t		 n;
 	struct msghdr	 msg;
@@ -284,14 +284,14 @@ msgbuf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_enqueue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
 void
-buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 
@@ -299,5 +299,5 @@ buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
 		close(buf->fd);
 
 	msgbuf->queued--;
-	buf_free(buf);
+	ibuf_free(buf);
 }
diff --git a/usr.sbin/ospf6d/database.c b/usr.sbin/ospf6d/database.c
index 20c818eb55f..5590cf91eb6 100644
--- a/usr.sbin/ospf6d/database.c
+++ b/usr.sbin/ospf6d/database.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: database.c,v 1.9 2008/12/28 20:08:31 claudio Exp $ */
+/*	$OpenBSD: database.c,v 1.10 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
@@ -43,11 +43,11 @@ send_db_description(struct nbr *nbr)
 	struct in6_addr		 dst;
 	struct db_dscrp_hdr	 dd_hdr;
 	struct lsa_entry	*le, *nle;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	int			 ret = 0;
 	u_int8_t		 bits = 0;
 
-	if ((buf = buf_open(nbr->iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(nbr->iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_db_description");
 
 	/* OSPF header */
@@ -55,7 +55,7 @@ send_db_description(struct nbr *nbr)
 		goto fail;
 
 	/* reserve space for database description header */
-	if (buf_reserve(buf, sizeof(dd_hdr)) == NULL)
+	if (ibuf_reserve(buf, sizeof(dd_hdr)) == NULL)
 		goto fail;
 
 	switch (nbr->state) {
@@ -94,7 +94,7 @@ send_db_description(struct nbr *nbr)
 		    buf->wpos + sizeof(struct lsa_hdr) < buf->max -
 		    MD5_DIGEST_LENGTH; le = nle) {
 			nbr->dd_end = nle = TAILQ_NEXT(le, entry);
-			if (buf_add(buf, le->le_lsa, sizeof(struct lsa_hdr)))
+			if (ibuf_add(buf, le->le_lsa, sizeof(struct lsa_hdr)))
 				goto fail;
 		}
 		break;
@@ -141,7 +141,7 @@ send_db_description(struct nbr *nbr)
 	dd_hdr.bits = bits;
 	dd_hdr.dd_seq_num = htonl(nbr->dd_seq_num);
 
-	memcpy(buf_seek(buf, sizeof(struct ospf_hdr), sizeof(dd_hdr)),
+	memcpy(ibuf_seek(buf, sizeof(struct ospf_hdr), sizeof(dd_hdr)),
 	    &dd_hdr, sizeof(dd_hdr));
 
 	/* calculate checksum */
@@ -151,11 +151,11 @@ send_db_description(struct nbr *nbr)
 	/* transmit packet */
 	ret = send_packet(nbr->iface, buf->buf, buf->wpos, &dst);
 done:
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_db_description");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/ospf6d/hello.c b/usr.sbin/ospf6d/hello.c
index becf70ee21d..0b961719125 100644
--- a/usr.sbin/ospf6d/hello.c
+++ b/usr.sbin/ospf6d/hello.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hello.c,v 1.15 2010/02/01 10:22:06 jacekm Exp $ */
+/*	$OpenBSD: hello.c,v 1.16 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
@@ -41,7 +41,7 @@ send_hello(struct iface *iface)
 	struct in6_addr		 dst;
 	struct hello_hdr	 hello;
 	struct nbr		*nbr;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	int			 ret;
 	u_int32_t		 opts;
 
@@ -62,8 +62,8 @@ send_hello(struct iface *iface)
 		fatalx("send_hello: unknown interface type");
 	}
 
-	/* XXX READ_BUF_SIZE */
-	if ((buf = buf_dynamic(PKG_DEF_SIZE, READ_BUF_SIZE)) == NULL)
+	/* XXX IBUF_READ_SIZE */
+	if ((buf = ibuf_dynamic(PKG_DEF_SIZE, IBUF_READ_SIZE)) == NULL)
 		fatal("send_hello");
 
 	/* OSPF header */
@@ -91,13 +91,13 @@ send_hello(struct iface *iface)
 	} else
 		hello.bd_rtr = 0;
 
-	if (buf_add(buf, &hello, sizeof(hello)))
+	if (ibuf_add(buf, &hello, sizeof(hello)))
 		goto fail;
 
 	/* active neighbor(s) */
 	LIST_FOREACH(nbr, &iface->nbr_list, entry) {
 		if ((nbr->state >= NBR_STA_INIT) && (nbr != iface->self))
-			if (buf_add(buf, &nbr->id, sizeof(nbr->id)))
+			if (ibuf_add(buf, &nbr->id, sizeof(nbr->id)))
 				goto fail;
 	}
 
@@ -107,11 +107,11 @@ send_hello(struct iface *iface)
 
 	ret = send_packet(iface, buf->buf, buf->wpos, &dst);
 
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_hello");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/ospf6d/imsg.c b/usr.sbin/ospf6d/imsg.c
index c87867354b9..7bd1ee09c51 100644
--- a/usr.sbin/ospf6d/imsg.c
+++ b/usr.sbin/ospf6d/imsg.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.8 2010/04/07 18:09:39 nicm Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.9 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -135,7 +135,7 @@ int
 imsg_compose(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, void *data, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf, type, peerid, pid, datalen)) == NULL)
 		return (-1);
@@ -154,7 +154,7 @@ int
 imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, const struct iovec *iov, int iovcnt)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	int		 i, datalen = 0;
 
 	for (i = 0; i < iovcnt; i++)
@@ -175,11 +175,11 @@ imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 /* ARGSUSED */
-struct buf *
+struct ibuf *
 imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	struct imsg_hdr	 hdr;
 
 	datalen += IMSG_HEADER_SIZE;
@@ -193,7 +193,7 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 	hdr.peerid = peerid;
 	if ((hdr.pid = pid) == 0)
 		hdr.pid = ibuf->pid;
-	if ((wbuf = buf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
+	if ((wbuf = ibuf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
 		return (NULL);
 	}
 	if (imsg_add(wbuf, &hdr, sizeof(hdr)) == -1)
@@ -203,18 +203,18 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 int
-imsg_add(struct buf *msg, void *data, u_int16_t datalen)
+imsg_add(struct ibuf *msg, void *data, u_int16_t datalen)
 {
 	if (datalen)
-		if (buf_add(msg, data, datalen) == -1) {
-			buf_free(msg);
+		if (ibuf_add(msg, data, datalen) == -1) {
+			ibuf_free(msg);
 			return (-1);
 		}
 	return (datalen);
 }
 
 void
-imsg_close(struct imsgbuf *ibuf, struct buf *msg)
+imsg_close(struct imsgbuf *ibuf, struct ibuf *msg)
 {
 	struct imsg_hdr	*hdr;
 
@@ -226,7 +226,7 @@ imsg_close(struct imsgbuf *ibuf, struct buf *msg)
 
 	hdr->len = (u_int16_t)msg->wpos;
 
-	buf_close(&ibuf->w, msg);
+	ibuf_close(&ibuf->w, msg);
 }
 
 void
diff --git a/usr.sbin/ospf6d/imsg.h b/usr.sbin/ospf6d/imsg.h
index 9fd3f2f4964..4e914c08e18 100644
--- a/usr.sbin/ospf6d/imsg.h
+++ b/usr.sbin/ospf6d/imsg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.h,v 1.5 2010/04/27 21:04:04 nicm Exp $	*/
+/*	$OpenBSD: imsg.h,v 1.6 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -18,12 +18,12 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define READ_BUF_SIZE		65535
+#define IBUF_READ_SIZE		65535
 #define IMSG_HEADER_SIZE	sizeof(struct imsg_hdr)
 #define MAX_IMSGSIZE		16384
 
-struct buf {
-	TAILQ_ENTRY(buf)	 entry;
+struct ibuf {
+	TAILQ_ENTRY(ibuf)	 entry;
 	u_char			*buf;
 	size_t			 size;
 	size_t			 max;
@@ -33,13 +33,13 @@ struct buf {
 };
 
 struct msgbuf {
-	TAILQ_HEAD(, buf)	 bufs;
+	TAILQ_HEAD(, ibuf)	 bufs;
 	u_int32_t		 queued;
 	int			 fd;
 };
 
-struct buf_read {
-	u_char			 buf[READ_BUF_SIZE];
+struct ibuf_read {
+	u_char			 buf[IBUF_READ_SIZE];
 	u_char			*rptr;
 	size_t			 wpos;
 };
@@ -51,7 +51,7 @@ struct imsg_fd {
 
 struct imsgbuf {
 	TAILQ_HEAD(, imsg_fd)	 fds;
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	int			 fd;
 	pid_t			 pid;
@@ -75,16 +75,16 @@ struct imsg {
 
 
 /* buffer.c */
-struct buf	*buf_open(size_t);
-struct buf	*buf_dynamic(size_t, size_t);
-int		 buf_add(struct buf *, const void *, size_t);
-void		*buf_reserve(struct buf *, size_t);
-void		*buf_seek(struct buf *, size_t, size_t);
-size_t		 buf_size(struct buf *);
-size_t		 buf_left(struct buf *);
-void		 buf_close(struct msgbuf *, struct buf *);
-int		 buf_write(struct msgbuf *);
-void		 buf_free(struct buf *);
+struct ibuf	*ibuf_open(size_t);
+struct ibuf	*ibuf_dynamic(size_t, size_t);
+int		 ibuf_add(struct ibuf *, const void *, size_t);
+void		*ibuf_reserve(struct ibuf *, size_t);
+void		*ibuf_seek(struct ibuf *, size_t, size_t);
+size_t		 ibuf_size(struct ibuf *);
+size_t		 ibuf_left(struct ibuf *);
+void		 ibuf_close(struct msgbuf *, struct ibuf *);
+int		 ibuf_write(struct msgbuf *);
+void		 ibuf_free(struct ibuf *);
 void		 msgbuf_init(struct msgbuf *);
 void		 msgbuf_clear(struct msgbuf *);
 int		 msgbuf_write(struct msgbuf *);
@@ -98,10 +98,10 @@ int	 imsg_compose(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 int	 imsg_composev(struct imsgbuf *, u_int32_t, u_int32_t,  pid_t,
 	    int, const struct iovec *, int);
-struct buf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
+struct ibuf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    u_int16_t);
-int	 imsg_add(struct buf *, void *, u_int16_t);
-void	 imsg_close(struct imsgbuf *, struct buf *);
+int	 imsg_add(struct ibuf *, void *, u_int16_t);
+void	 imsg_close(struct imsgbuf *, struct ibuf *);
 void	 imsg_free(struct imsg *);
 int	 imsg_flush(struct imsgbuf *);
 void	 imsg_clear(struct imsgbuf *);
diff --git a/usr.sbin/ospf6d/lsack.c b/usr.sbin/ospf6d/lsack.c
index 0561c73ffc2..80dd887e35c 100644
--- a/usr.sbin/ospf6d/lsack.c
+++ b/usr.sbin/ospf6d/lsack.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lsack.c,v 1.4 2007/10/16 13:01:07 norby Exp $ */
+/*	$OpenBSD: lsack.c,v 1.5 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005, 2007 Esben Norby <norby@openbsd.org>
@@ -37,11 +37,11 @@ void	 start_ls_ack_tx_timer_now(struct iface *);
 int
 send_ls_ack(struct iface *iface, struct in6_addr addr, void *data, size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 	int		 ret;
 
-	/* XXX READ_BUF_SIZE */
-	if ((buf = buf_dynamic(PKG_DEF_SIZE, READ_BUF_SIZE)) == NULL)
+	/* XXX IBUF_READ_SIZE */
+	if ((buf = ibuf_dynamic(PKG_DEF_SIZE, IBUF_READ_SIZE)) == NULL)
 		fatal("send_ls_ack");
 
 	/* OSPF header */
@@ -49,7 +49,7 @@ send_ls_ack(struct iface *iface, struct in6_addr addr, void *data, size_t len)
 		goto fail;
 
 	/* LS ack(s) */
-	if (buf_add(buf, data, len))
+	if (ibuf_add(buf, data, len))
 		goto fail;
 
 	/* calculate checksum */
@@ -58,11 +58,11 @@ send_ls_ack(struct iface *iface, struct in6_addr addr, void *data, size_t len)
 
 	ret = send_packet(iface, buf->buf, buf->wpos, &addr);
 
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_ls_ack");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/ospf6d/lsreq.c b/usr.sbin/ospf6d/lsreq.c
index d460579b09c..97295dac9b9 100644
--- a/usr.sbin/ospf6d/lsreq.c
+++ b/usr.sbin/ospf6d/lsreq.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lsreq.c,v 1.4 2009/06/06 09:02:46 eric Exp $ */
+/*	$OpenBSD: lsreq.c,v 1.5 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005, 2007 Esben Norby <norby@openbsd.org>
@@ -36,10 +36,10 @@ send_ls_req(struct nbr *nbr)
 	struct in6_addr		 dst;
 	struct ls_req_hdr	 ls_req_hdr;
 	struct lsa_entry	*le, *nle;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	int			 ret;
 
-	if ((buf = buf_open(nbr->iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(nbr->iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_ls_req");
 
 	switch (nbr->iface->type) {
@@ -69,7 +69,7 @@ send_ls_req(struct nbr *nbr)
 		ls_req_hdr.type = le->le_lsa->type;
 		ls_req_hdr.ls_id = le->le_lsa->ls_id;
 		ls_req_hdr.adv_rtr = le->le_lsa->adv_rtr;
-		if (buf_add(buf, &ls_req_hdr, sizeof(ls_req_hdr)))
+		if (ibuf_add(buf, &ls_req_hdr, sizeof(ls_req_hdr)))
 			goto fail;
 	}
 
@@ -79,11 +79,11 @@ send_ls_req(struct nbr *nbr)
 
 	ret = send_packet(nbr->iface, buf->buf, buf->wpos, &dst);
 
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_ls_req");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/ospf6d/lsupdate.c b/usr.sbin/ospf6d/lsupdate.c
index c4dbb6b05b6..558b684a2ea 100644
--- a/usr.sbin/ospf6d/lsupdate.c
+++ b/usr.sbin/ospf6d/lsupdate.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lsupdate.c,v 1.4 2009/06/06 09:02:46 eric Exp $ */
+/*	$OpenBSD: lsupdate.c,v 1.5 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
@@ -35,9 +35,9 @@
 extern struct ospfd_conf	*oeconf;
 extern struct imsgev		*iev_rde;
 
-struct buf *prepare_ls_update(struct iface *);
-int	add_ls_update(struct buf *, struct iface *, void *, int, u_int16_t);
-int	send_ls_update(struct buf *, struct iface *, struct in6_addr, u_int32_t);
+struct ibuf *prepare_ls_update(struct iface *);
+int	add_ls_update(struct ibuf *, struct iface *, void *, int, u_int16_t);
+int	send_ls_update(struct ibuf *, struct iface *, struct in6_addr, u_int32_t);
 
 void	ls_retrans_list_insert(struct nbr *, struct lsa_entry *);
 void	ls_retrans_list_remove(struct nbr *, struct lsa_entry *);
@@ -146,12 +146,12 @@ lsa_flood(struct iface *iface, struct nbr *originator, struct lsa_hdr *lsa_hdr,
 	return (dont_ack == 2);
 }
 
-struct buf *
+struct ibuf *
 prepare_ls_update(struct iface *iface)
 {
-	struct buf		*buf;
+	struct ibuf		*buf;
 
-	if ((buf = buf_open(iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("prepare_ls_update");
 
 	/* OSPF header */
@@ -159,18 +159,18 @@ prepare_ls_update(struct iface *iface)
 		goto fail;
 
 	/* reserve space for number of lsa field */
-	if (buf_reserve(buf, sizeof(u_int32_t)) == NULL)
+	if (ibuf_reserve(buf, sizeof(u_int32_t)) == NULL)
 		goto fail;
 
 	return (buf);
 fail:
 	log_warn("prepare_ls_update");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (NULL);
 }
 
 int
-add_ls_update(struct buf *buf, struct iface *iface, void *data, int len,
+add_ls_update(struct ibuf *buf, struct iface *iface, void *data, int len,
     u_int16_t older)
 {
 	size_t		pos;
@@ -180,7 +180,7 @@ add_ls_update(struct buf *buf, struct iface *iface, void *data, int len,
 		return (0);
 
 	pos = buf->wpos;
-	if (buf_add(buf, data, len)) {
+	if (ibuf_add(buf, data, len)) {
 		log_warn("add_ls_update");
 		return (0);
 	}
@@ -191,19 +191,19 @@ add_ls_update(struct buf *buf, struct iface *iface, void *data, int len,
 	if ((age += older + iface->transmit_delay) >= MAX_AGE)
 		age = MAX_AGE;
 	age = htons(age);
-	memcpy(buf_seek(buf, pos, sizeof(age)), &age, sizeof(age));
+	memcpy(ibuf_seek(buf, pos, sizeof(age)), &age, sizeof(age));
 
 	return (1);
 }
 
 int
-send_ls_update(struct buf *buf, struct iface *iface, struct in6_addr addr,
+send_ls_update(struct ibuf *buf, struct iface *iface, struct in6_addr addr,
     u_int32_t nlsa)
 {
 	int			 ret;
 
 	nlsa = htonl(nlsa);
-	memcpy(buf_seek(buf, sizeof(struct ospf_hdr), sizeof(nlsa)),
+	memcpy(ibuf_seek(buf, sizeof(struct ospf_hdr), sizeof(nlsa)),
 	    &nlsa, sizeof(nlsa));
 	/* calculate checksum */
 	if (upd_ospf_hdr(buf, iface))
@@ -211,11 +211,11 @@ send_ls_update(struct buf *buf, struct iface *iface, struct in6_addr addr,
 
 	ret = send_packet(iface, buf->buf, buf->wpos, &addr);
 
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_ls_update");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
@@ -416,7 +416,7 @@ ls_retrans_timer(int fd, short event, void *bula)
 	struct in6_addr		 addr;
 	struct nbr		*nbr = bula;
 	struct lsa_entry	*le;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	time_t			 now;
 	int			 d;
 	u_int32_t		 nlsa = 0;
diff --git a/usr.sbin/ospf6d/ospfe.c b/usr.sbin/ospf6d/ospfe.c
index 3daf39e233a..b87de73540c 100644
--- a/usr.sbin/ospf6d/ospfe.c
+++ b/usr.sbin/ospf6d/ospfe.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ospfe.c,v 1.28 2009/06/06 09:02:46 eric Exp $ */
+/*	$OpenBSD: ospfe.c,v 1.29 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
@@ -178,7 +178,7 @@ ospfe(struct ospfd_conf *xconf, int pipe_parent2ospfe[2], int pipe_ospfe2rde[2],
 	TAILQ_INIT(&ctl_conns);
 	control_listen();
 
-	if ((pkt_ptr = calloc(1, READ_BUF_SIZE)) == NULL)
+	if ((pkt_ptr = calloc(1, IBUF_READ_SIZE)) == NULL)
 		fatal("ospfe");
 
 	/* start interfaces */
@@ -704,7 +704,7 @@ orig_rtr_lsa_area(struct area *area)
 	struct lsa_rtr		 lsa_rtr;
 	struct lsa_rtr_link	 rtr_link;
 	struct iface		*iface;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct nbr		*nbr, *self = NULL;
 	u_int32_t		 flags;
 	u_int16_t		 chksum;
@@ -712,16 +712,16 @@ orig_rtr_lsa_area(struct area *area)
 
 	log_debug("orig_rtr_lsa: area %s", inet_ntoa(area->id));
 
-	/* XXX READ_BUF_SIZE */
-	if ((buf = buf_dynamic(sizeof(lsa_hdr), READ_BUF_SIZE)) == NULL)
+	/* XXX IBUF_READ_SIZE */
+	if ((buf = ibuf_dynamic(sizeof(lsa_hdr), IBUF_READ_SIZE)) == NULL)
 		fatal("orig_rtr_lsa");
 
 	/* reserve space for LSA header and LSA Router header */
-	if (buf_reserve(buf, sizeof(lsa_hdr)) == NULL)
-		fatal("orig_rtr_lsa: buf_reserve failed");
+	if (ibuf_reserve(buf, sizeof(lsa_hdr)) == NULL)
+		fatal("orig_rtr_lsa: ibuf_reserve failed");
 
-	if (buf_reserve(buf, sizeof(lsa_rtr)) == NULL)
-		fatal("orig_rtr_lsa: buf_reserve failed");
+	if (ibuf_reserve(buf, sizeof(lsa_rtr)) == NULL)
+		fatal("orig_rtr_lsa: ibuf_reserve failed");
 
 	/* links */
 	LIST_FOREACH(iface, &area->iface_list, entry) {
@@ -744,7 +744,7 @@ orig_rtr_lsa_area(struct area *area)
 				rtr_link.iface_id = htonl(iface->ifindex);
 				rtr_link.nbr_iface_id = htonl(nbr->iface_id);
 				rtr_link.nbr_rtr_id = nbr->id.s_addr;
-				if (buf_add(buf, &rtr_link, sizeof(rtr_link)))
+				if (ibuf_add(buf, &rtr_link, sizeof(rtr_link)))
 					fatalx("orig_rtr_lsa: buf_add failed");
 			}
 			continue;
@@ -769,7 +769,7 @@ orig_rtr_lsa_area(struct area *area)
 					rtr_link.iface_id = htonl(iface->ifindex);
 					rtr_link.nbr_iface_id = htonl(iface->dr->iface_id);
 					rtr_link.nbr_rtr_id = iface->dr->id.s_addr;
-					if (buf_add(buf, &rtr_link,
+					if (ibuf_add(buf, &rtr_link,
 					    sizeof(rtr_link)))
 						fatalx("orig_rtr_lsa: "
 						    "buf_add failed");
@@ -795,7 +795,7 @@ orig_rtr_lsa_area(struct area *area)
 				else
 					rtr_link.metric = htons(iface->metric);
 				virtual = 1;
-				if (buf_add(buf, &rtr_link, sizeof(rtr_link)))
+				if (ibuf_add(buf, &rtr_link, sizeof(rtr_link)))
 					fatalx("orig_rtr_lsa: buf_add failed");
 
 				log_debug("orig_rtr_lsa: virtual link, "
@@ -809,7 +809,7 @@ orig_rtr_lsa_area(struct area *area)
 			rtr_link.data = 0xffffffff;
 			rtr_link.type = LINK_TYPE_STUB_NET;
 			rtr_link.metric = htons(iface->metric);
-			if (buf_add(buf, &rtr_link, sizeof(rtr_link)))
+			if (ibuf_add(buf, &rtr_link, sizeof(rtr_link)))
 				fatalx("orig_rtr_lsa: buf_add failed");
 
 			LIST_FOREACH(nbr, &iface->nbr_list, entry) {
@@ -829,7 +829,7 @@ orig_rtr_lsa_area(struct area *area)
 					else
 						rtr_link.metric =
 						    htons(iface->metric);
-					if (buf_add(buf, &rtr_link,
+					if (ibuf_add(buf, &rtr_link,
 					    sizeof(rtr_link)))
 						fatalx("orig_rtr_lsa: "
 						    "buf_add failed");
@@ -869,7 +869,7 @@ orig_rtr_lsa_area(struct area *area)
 	LSA_24_SETLO(lsa_rtr.opts, area_ospf_options(area));
 	LSA_24_SETHI(lsa_rtr.opts, flags);
 	lsa_rtr.opts = htonl(lsa_rtr.opts);
-	memcpy(buf_seek(buf, sizeof(lsa_hdr), sizeof(lsa_rtr)),
+	memcpy(ibuf_seek(buf, sizeof(lsa_hdr), sizeof(lsa_rtr)),
 	    &lsa_rtr, sizeof(lsa_rtr));
 
 	/* LSA header */
@@ -881,10 +881,10 @@ orig_rtr_lsa_area(struct area *area)
 	lsa_hdr.seq_num = htonl(INIT_SEQ_NUM);
 	lsa_hdr.len = htons(buf->wpos);
 	lsa_hdr.ls_chksum = 0;		/* updated later */
-	memcpy(buf_seek(buf, 0, sizeof(lsa_hdr)), &lsa_hdr, sizeof(lsa_hdr));
+	memcpy(ibuf_seek(buf, 0, sizeof(lsa_hdr)), &lsa_hdr, sizeof(lsa_hdr));
 
 	chksum = htons(iso_cksum(buf->buf, buf->wpos, LS_CKSUM_OFFSET));
-	memcpy(buf_seek(buf, LS_CKSUM_OFFSET, sizeof(chksum)),
+	memcpy(ibuf_seek(buf, LS_CKSUM_OFFSET, sizeof(chksum)),
 	    &chksum, sizeof(chksum));
 
 	if (self)
@@ -894,7 +894,7 @@ orig_rtr_lsa_area(struct area *area)
 		log_warnx("orig_rtr_lsa: empty area %s",
 		    inet_ntoa(area->id));
 
-	buf_free(buf);
+	ibuf_free(buf);
 }
 
 void
@@ -902,32 +902,32 @@ orig_net_lsa(struct iface *iface)
 {
 	struct lsa_hdr		 lsa_hdr;
 	struct nbr		*nbr;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct lsa_net		 lsa_net;
 	int			 num_rtr = 0;
 	u_int16_t		 chksum;
 
-	/* XXX READ_BUF_SIZE */
-	if ((buf = buf_dynamic(sizeof(lsa_hdr), READ_BUF_SIZE)) == NULL)
+	/* XXX IBUF_READ_SIZE */
+	if ((buf = ibuf_dynamic(sizeof(lsa_hdr), IBUF_READ_SIZE)) == NULL)
 		fatal("orig_net_lsa");
 
 	/* reserve space for LSA header and options field */
-	if (buf_reserve(buf, sizeof(lsa_hdr) + sizeof(lsa_net)) == NULL)
-		fatal("orig_net_lsa: buf_reserve failed");
+	if (ibuf_reserve(buf, sizeof(lsa_hdr) + sizeof(lsa_net)) == NULL)
+		fatal("orig_net_lsa: ibuf_reserve failed");
 
 	lsa_net.opts = 0;
 	/* fully adjacent neighbors + self */
 	LIST_FOREACH(nbr, &iface->nbr_list, entry)
 		if (nbr->state & NBR_STA_FULL) {
-			if (buf_add(buf, &nbr->id, sizeof(nbr->id)))
-				fatal("orig_net_lsa: buf_add failed");
+			if (ibuf_add(buf, &nbr->id, sizeof(nbr->id)))
+				fatal("orig_net_lsa: ibuf_add failed");
 			lsa_net.opts |= nbr->options;
 			num_rtr++;
 		}
 
 	if (num_rtr == 1) {
 		/* non transit net therefor no need to generate a net lsa */
-		buf_free(buf);
+		ibuf_free(buf);
 		return;
 	}
 
@@ -944,20 +944,20 @@ orig_net_lsa(struct iface *iface)
 	lsa_hdr.seq_num = htonl(INIT_SEQ_NUM);
 	lsa_hdr.len = htons(buf->wpos);
 	lsa_hdr.ls_chksum = 0;		/* updated later */
-	memcpy(buf_seek(buf, 0, sizeof(lsa_hdr)), &lsa_hdr, sizeof(lsa_hdr));
+	memcpy(ibuf_seek(buf, 0, sizeof(lsa_hdr)), &lsa_hdr, sizeof(lsa_hdr));
 
 	lsa_net.opts &= lsa_net.opts & htonl(LSA_24_MASK);
-	memcpy(buf_seek(buf, sizeof(lsa_hdr), sizeof(lsa_net)), &lsa_net,
+	memcpy(ibuf_seek(buf, sizeof(lsa_hdr), sizeof(lsa_net)), &lsa_net,
 	    sizeof(lsa_net));
 
 	chksum = htons(iso_cksum(buf->buf, buf->wpos, LS_CKSUM_OFFSET));
-	memcpy(buf_seek(buf, LS_CKSUM_OFFSET, sizeof(chksum)),
+	memcpy(ibuf_seek(buf, LS_CKSUM_OFFSET, sizeof(chksum)),
 	    &chksum, sizeof(chksum));
 
 	imsg_compose_event(iev_rde, IMSG_LS_UPD, iface->self->peerid, 0,
 	    -1, buf->buf, buf->wpos);
 
-	buf_free(buf);
+	ibuf_free(buf);
 }
 
 void
@@ -966,7 +966,7 @@ orig_link_lsa(struct iface *iface)
 	struct lsa_hdr		 lsa_hdr;
 	struct lsa_link	 	 lsa_link;
 	struct lsa_prefix	 lsa_prefix;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct iface_addr	*ia;
 	struct in6_addr		 prefix;
 	unsigned int		 num_prefix = 0;
@@ -992,14 +992,14 @@ orig_link_lsa(struct iface *iface)
 		fatalx("orig_link_lsa: unknown interface type");
 	}
 
-	/* XXX READ_BUF_SIZE */
-	if ((buf = buf_dynamic(sizeof(lsa_hdr) + sizeof(lsa_link),
-	    READ_BUF_SIZE)) == NULL)
+	/* XXX IBUF_READ_SIZE */
+	if ((buf = ibuf_dynamic(sizeof(lsa_hdr) + sizeof(lsa_link),
+	    IBUF_READ_SIZE)) == NULL)
 		fatal("orig_link_lsa");
 
 	/* reserve space for LSA header and LSA link header */
-	if (buf_reserve(buf, sizeof(lsa_hdr) + sizeof(lsa_link)) == NULL)
-		fatal("orig_link_lsa: buf_reserve failed");
+	if (ibuf_reserve(buf, sizeof(lsa_hdr) + sizeof(lsa_link)) == NULL)
+		fatal("orig_link_lsa: ibuf_reserve failed");
 	
 	/* link-local address, and all prefixes configured on interface */
 	TAILQ_FOREACH(ia, &iface->ifa_list, entry) {
@@ -1015,11 +1015,11 @@ orig_link_lsa(struct iface *iface)
 		lsa_prefix.metric = 0;
 		inet6applymask(&prefix, &ia->addr, ia->prefixlen);
 		log_debug("orig_link_lsa: prefix %s", log_in6addr(&prefix));
-		if (buf_add(buf, &lsa_prefix, sizeof(lsa_prefix)))
-			fatal("orig_link_lsa: buf_add failed");
-		if (buf_add(buf, &prefix.s6_addr[0],
+		if (ibuf_add(buf, &lsa_prefix, sizeof(lsa_prefix)))
+			fatal("orig_link_lsa: ibuf_add failed");
+		if (ibuf_add(buf, &prefix.s6_addr[0],
 		    LSA_PREFIXSIZE(ia->prefixlen)))
-			fatal("orig_link_lsa: buf_add failed");
+			fatal("orig_link_lsa: ibuf_add failed");
 		num_prefix++;
 	}
 
@@ -1029,7 +1029,7 @@ orig_link_lsa(struct iface *iface)
 	LSA_24_SETLO(lsa_link.opts, options);
 	lsa_link.opts = htonl(lsa_link.opts);
 	lsa_link.numprefix = htonl(num_prefix);
-	memcpy(buf_seek(buf, sizeof(lsa_hdr), sizeof(lsa_link)),
+	memcpy(ibuf_seek(buf, sizeof(lsa_hdr), sizeof(lsa_link)),
 	    &lsa_link, sizeof(lsa_link));
 
 	/* LSA header */
@@ -1041,16 +1041,16 @@ orig_link_lsa(struct iface *iface)
 	lsa_hdr.seq_num = htonl(INIT_SEQ_NUM);
 	lsa_hdr.len = htons(buf->wpos);
 	lsa_hdr.ls_chksum = 0;		/* updated later */
-	memcpy(buf_seek(buf, 0, sizeof(lsa_hdr)), &lsa_hdr, sizeof(lsa_hdr));
+	memcpy(ibuf_seek(buf, 0, sizeof(lsa_hdr)), &lsa_hdr, sizeof(lsa_hdr));
 
 	chksum = htons(iso_cksum(buf->buf, buf->wpos, LS_CKSUM_OFFSET));
-	memcpy(buf_seek(buf, LS_CKSUM_OFFSET, sizeof(chksum)),
+	memcpy(ibuf_seek(buf, LS_CKSUM_OFFSET, sizeof(chksum)),
 	    &chksum, sizeof(chksum));
 
 	imsg_compose_event(iev_rde, IMSG_LS_UPD, iface->self->peerid, 0,
 	    -1, buf->buf, buf->wpos);
 
-	buf_free(buf);
+	ibuf_free(buf);
 }
 
 u_int32_t
diff --git a/usr.sbin/ospf6d/ospfe.h b/usr.sbin/ospf6d/ospfe.h
index ef99a587f57..cce785d2657 100644
--- a/usr.sbin/ospf6d/ospfe.h
+++ b/usr.sbin/ospf6d/ospfe.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ospfe.h,v 1.15 2009/03/29 16:24:38 stsp Exp $ */
+/*	$OpenBSD: ospfe.h,v 1.16 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
@@ -225,8 +225,8 @@ struct ctl_nbr	*nbr_to_ctl(struct nbr *);
 struct lsa_hdr	*lsa_hdr_new(void);
 
 /* packet.c */
-int	 gen_ospf_hdr(struct buf *, struct iface *, u_int8_t);
-int	 upd_ospf_hdr(struct buf *, struct iface *);
+int	 gen_ospf_hdr(struct ibuf *, struct iface *, u_int8_t);
+int	 upd_ospf_hdr(struct ibuf *, struct iface *);
 int	 send_packet(struct iface *, void *, size_t, struct in6_addr *);
 void	 recv_packet(int, short, void *);
 
diff --git a/usr.sbin/ospf6d/packet.c b/usr.sbin/ospf6d/packet.c
index 4bea8456228..ebb5b345254 100644
--- a/usr.sbin/ospf6d/packet.c
+++ b/usr.sbin/ospf6d/packet.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: packet.c,v 1.9 2008/03/24 16:11:04 deraadt Exp $ */
+/*	$OpenBSD: packet.c,v 1.10 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
@@ -44,7 +44,7 @@ struct iface	*find_iface(struct ospfd_conf *, unsigned int,
 		    struct in6_addr *);
 
 int
-gen_ospf_hdr(struct buf *buf, struct iface *iface, u_int8_t type)
+gen_ospf_hdr(struct ibuf *buf, struct iface *iface, u_int8_t type)
 {
 	struct ospf_hdr	ospf_hdr;
 
@@ -57,15 +57,15 @@ gen_ospf_hdr(struct buf *buf, struct iface *iface, u_int8_t type)
 	ospf_hdr.instance = DEFAULT_INSTANCE_ID;
 	ospf_hdr.zero = 0;		/* must be zero */
 
-	return (buf_add(buf, &ospf_hdr, sizeof(ospf_hdr)));
+	return (ibuf_add(buf, &ospf_hdr, sizeof(ospf_hdr)));
 }
 
 int
-upd_ospf_hdr(struct buf *buf, struct iface *iface)
+upd_ospf_hdr(struct ibuf *buf, struct iface *iface)
 {
 	struct ospf_hdr	*ospf_hdr;
 
-	if ((ospf_hdr = buf_seek(buf, 0, sizeof(ospf_hdr))) == NULL)
+	if ((ospf_hdr = ibuf_seek(buf, 0, sizeof(ospf_hdr))) == NULL)
 		fatalx("upd_ospf_hdr: buf_seek failed");
 
 	/* update length */
diff --git a/usr.sbin/ospfd/auth.c b/usr.sbin/ospfd/auth.c
index b9fa536b274..0410a088da4 100644
--- a/usr.sbin/ospfd/auth.c
+++ b/usr.sbin/ospfd/auth.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: auth.c,v 1.17 2009/06/06 07:31:26 eric Exp $ */
+/*	$OpenBSD: auth.c,v 1.18 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
@@ -137,29 +137,29 @@ auth_validate(void *buf, u_int16_t len, struct iface *iface, struct nbr *nbr)
 }
 
 int
-auth_gen(struct buf *buf, struct iface *iface)
+auth_gen(struct ibuf *buf, struct iface *iface)
 {
 	MD5_CTX		 hash;
 	u_int8_t	 digest[MD5_DIGEST_LENGTH];
 	struct ospf_hdr	*ospf_hdr;
 	struct auth_md	*md;
 
-	if ((ospf_hdr = buf_seek(buf, 0, sizeof(ospf_hdr))) == NULL)
+	if ((ospf_hdr = ibuf_seek(buf, 0, sizeof(ospf_hdr))) == NULL)
 		fatalx("auth_gen: buf_seek failed");
 
 	/* update length */
-	if (buf_size(buf) > USHRT_MAX)
+	if (ibuf_size(buf) > USHRT_MAX)
 		fatalx("auth_gen: resulting ospf packet too big");
-	ospf_hdr->len = htons(buf_size(buf));
+	ospf_hdr->len = htons(ibuf_size(buf));
 	/* clear auth_key field */
 	bzero(ospf_hdr->auth_key.simple, sizeof(ospf_hdr->auth_key.simple));
 
 	switch (iface->auth_type) {
 	case AUTH_NONE:
-		ospf_hdr->chksum = in_cksum(buf->buf, buf_size(buf));
+		ospf_hdr->chksum = in_cksum(buf->buf, ibuf_size(buf));
 		break;
 	case AUTH_SIMPLE:
-		ospf_hdr->chksum = in_cksum(buf->buf, buf_size(buf));
+		ospf_hdr->chksum = in_cksum(buf->buf, ibuf_size(buf));
 
 		strncpy(ospf_hdr->auth_key.simple, iface->auth_key,
 		    sizeof(ospf_hdr->auth_key.simple));
@@ -184,11 +184,11 @@ auth_gen(struct buf *buf, struct iface *iface)
 
 		/* calculate MD5 digest */
 		MD5Init(&hash);
-		MD5Update(&hash, buf->buf, buf_size(buf));
+		MD5Update(&hash, buf->buf, ibuf_size(buf));
 		MD5Update(&hash, digest, MD5_DIGEST_LENGTH);
 		MD5Final(digest, &hash);
 
-		return (buf_add(buf, digest, MD5_DIGEST_LENGTH));
+		return (ibuf_add(buf, digest, MD5_DIGEST_LENGTH));
 	default:
 		log_debug("auth_gen: unknown auth type, interface %s",
 		    iface->name);
diff --git a/usr.sbin/ospfd/buffer.c b/usr.sbin/ospfd/buffer.c
index 68789a16dbf..2be7a478e2b 100644
--- a/usr.sbin/ospfd/buffer.c
+++ b/usr.sbin/ospfd/buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: buffer.c,v 1.17 2009/09/15 10:54:59 jacekm Exp $	*/
+/*	$OpenBSD: buffer.c,v 1.18 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -28,16 +28,16 @@
 
 #include "imsg.h"
 
-int	buf_realloc(struct buf *, size_t);
-void	buf_enqueue(struct msgbuf *, struct buf *);
-void	buf_dequeue(struct msgbuf *, struct buf *);
+int	ibuf_realloc(struct ibuf *, size_t);
+void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
-struct buf *
-buf_open(size_t len)
+struct ibuf *
+ibuf_open(size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
-	if ((buf = calloc(1, sizeof(struct buf))) == NULL)
+	if ((buf = calloc(1, sizeof(struct ibuf))) == NULL)
 		return (NULL);
 	if ((buf->buf = malloc(len)) == NULL) {
 		free(buf);
@@ -49,15 +49,15 @@ buf_open(size_t len)
 	return (buf);
 }
 
-struct buf *
-buf_dynamic(size_t len, size_t max)
+struct ibuf *
+ibuf_dynamic(size_t len, size_t max)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (max < len)
 		return (NULL);
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
 	if (max > 0)
@@ -67,7 +67,7 @@ buf_dynamic(size_t len, size_t max)
 }
 
 int
-buf_realloc(struct buf *buf, size_t len)
+ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
 
@@ -87,10 +87,10 @@ buf_realloc(struct buf *buf, size_t len)
 }
 
 int
-buf_add(struct buf *buf, const void *data, size_t len)
+ibuf_add(struct ibuf *buf, const void *data, size_t len)
 {
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (-1);
 
 	memcpy(buf->buf + buf->wpos, data, len);
@@ -99,12 +99,12 @@ buf_add(struct buf *buf, const void *data, size_t len)
 }
 
 void *
-buf_reserve(struct buf *buf, size_t len)
+ibuf_reserve(struct ibuf *buf, size_t len)
 {
 	void	*b;
 
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (NULL);
 
 	b = buf->buf + buf->wpos;
@@ -113,7 +113,7 @@ buf_reserve(struct buf *buf, size_t len)
 }
 
 void *
-buf_seek(struct buf *buf, size_t pos, size_t len)
+ibuf_seek(struct ibuf *buf, size_t pos, size_t len)
 {
 	/* only allowed to seek in already written parts */
 	if (pos + len > buf->wpos)
@@ -123,28 +123,28 @@ buf_seek(struct buf *buf, size_t pos, size_t len)
 }
 
 size_t
-buf_size(struct buf *buf)
+ibuf_size(struct ibuf *buf)
 {
 	return (buf->wpos);
 }
 
 size_t
-buf_left(struct buf *buf)
+ibuf_left(struct ibuf *buf)
 {
 	return (buf->max - buf->wpos);
 }
 
 void
-buf_close(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_close(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	buf_enqueue(msgbuf, buf);
+	ibuf_enqueue(msgbuf, buf);
 }
 
 int
-buf_write(struct msgbuf *msgbuf)
+ibuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t	n;
 
@@ -176,7 +176,7 @@ buf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_free(struct buf *buf)
+ibuf_free(struct ibuf *buf)
 {
 	free(buf->buf);
 	free(buf);
@@ -193,14 +193,14 @@ msgbuf_init(struct msgbuf *msgbuf)
 void
 msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 {
-	struct buf	*buf, *next;
+	struct ibuf	*buf, *next;
 
 	for (buf = TAILQ_FIRST(&msgbuf->bufs); buf != NULL && n > 0;
 	    buf = next) {
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
-			buf_dequeue(msgbuf, buf);
+			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
 			n = 0;
@@ -211,17 +211,17 @@ msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 void
 msgbuf_clear(struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
-		buf_dequeue(msgbuf, buf);
+		ibuf_dequeue(msgbuf, buf);
 }
 
 int
 msgbuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t		 n;
 	struct msghdr	 msg;
@@ -284,14 +284,14 @@ msgbuf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_enqueue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
 void
-buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 
@@ -299,5 +299,5 @@ buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
 		close(buf->fd);
 
 	msgbuf->queued--;
-	buf_free(buf);
+	ibuf_free(buf);
 }
diff --git a/usr.sbin/ospfd/database.c b/usr.sbin/ospfd/database.c
index 960c39c9e12..c205ca9e8a0 100644
--- a/usr.sbin/ospfd/database.c
+++ b/usr.sbin/ospfd/database.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: database.c,v 1.26 2009/01/31 11:44:49 claudio Exp $ */
+/*	$OpenBSD: database.c,v 1.27 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
@@ -43,11 +43,11 @@ send_db_description(struct nbr *nbr)
 	struct sockaddr_in	 dst;
 	struct db_dscrp_hdr	 dd_hdr;
 	struct lsa_entry	*le, *nle;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	int			 ret = 0;
 	u_int8_t		 bits = 0;
 
-	if ((buf = buf_open(nbr->iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(nbr->iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_db_description");
 
 	/* OSPF header */
@@ -55,7 +55,7 @@ send_db_description(struct nbr *nbr)
 		goto fail;
 
 	/* reserve space for database description header */
-	if (buf_reserve(buf, sizeof(dd_hdr)) == NULL)
+	if (ibuf_reserve(buf, sizeof(dd_hdr)) == NULL)
 		goto fail;
 
 	switch (nbr->state) {
@@ -91,10 +91,10 @@ send_db_description(struct nbr *nbr)
 
 		/* build LSA list, keep space for a possible md5 sum */
 		for (le = TAILQ_FIRST(&nbr->db_sum_list); le != NULL &&
-		    buf_left(buf) >= MD5_DIGEST_LENGTH + sizeof(struct lsa_hdr);
+		    ibuf_left(buf) >= MD5_DIGEST_LENGTH + sizeof(struct lsa_hdr);
 		    le = nle) {
 			nbr->dd_end = nle = TAILQ_NEXT(le, entry);
-			if (buf_add(buf, le->le_lsa, sizeof(struct lsa_hdr)))
+			if (ibuf_add(buf, le->le_lsa, sizeof(struct lsa_hdr)))
 				goto fail;
 		}
 		break;
@@ -142,7 +142,7 @@ send_db_description(struct nbr *nbr)
 	dd_hdr.bits = bits;
 	dd_hdr.dd_seq_num = htonl(nbr->dd_seq_num);
 
-	memcpy(buf_seek(buf, sizeof(struct ospf_hdr), sizeof(dd_hdr)),
+	memcpy(ibuf_seek(buf, sizeof(struct ospf_hdr), sizeof(dd_hdr)),
 	    &dd_hdr, sizeof(dd_hdr));
 
 	/* update authentication and calculate checksum */
@@ -152,11 +152,11 @@ send_db_description(struct nbr *nbr)
 	/* transmit packet */
 	ret = send_packet(nbr->iface, buf, &dst);
 done:
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_db_description");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/ospfd/hello.c b/usr.sbin/ospfd/hello.c
index 5bb3201404c..20b16f964f0 100644
--- a/usr.sbin/ospfd/hello.c
+++ b/usr.sbin/ospfd/hello.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hello.c,v 1.18 2010/05/13 22:51:56 sthen Exp $ */
+/*	$OpenBSD: hello.c,v 1.19 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
@@ -41,7 +41,7 @@ send_hello(struct iface *iface)
 	struct sockaddr_in	 dst;
 	struct hello_hdr	 hello;
 	struct nbr		*nbr;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	int			 ret;
 
 	dst.sin_family = AF_INET;
@@ -64,8 +64,8 @@ send_hello(struct iface *iface)
 		fatalx("send_hello: unknown interface type");
 	}
 
-	/* XXX READ_BUF_SIZE */
-	if ((buf = buf_dynamic(PKG_DEF_SIZE, READ_BUF_SIZE)) == NULL)
+	/* XXX IBUF_READ_SIZE */
+	if ((buf = ibuf_dynamic(PKG_DEF_SIZE, IBUF_READ_SIZE)) == NULL)
 		fatal("send_hello");
 
 	/* OSPF header */
@@ -90,13 +90,13 @@ send_hello(struct iface *iface)
 	} else
 		hello.bd_rtr = 0;
 
-	if (buf_add(buf, &hello, sizeof(hello)))
+	if (ibuf_add(buf, &hello, sizeof(hello)))
 		goto fail;
 
 	/* active neighbor(s) */
 	LIST_FOREACH(nbr, &iface->nbr_list, entry) {
 		if ((nbr->state >= NBR_STA_INIT) && (nbr != iface->self))
-			if (buf_add(buf, &nbr->id, sizeof(nbr->id)))
+			if (ibuf_add(buf, &nbr->id, sizeof(nbr->id)))
 				goto fail;
 	}
 
@@ -105,11 +105,11 @@ send_hello(struct iface *iface)
 		goto fail;
 
 	ret = send_packet(iface, buf, &dst);
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_hello");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/ospfd/imsg.c b/usr.sbin/ospfd/imsg.c
index 64d53ce0b0a..ba6685f560f 100644
--- a/usr.sbin/ospfd/imsg.c
+++ b/usr.sbin/ospfd/imsg.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.20 2010/04/07 18:09:39 nicm Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.21 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -135,7 +135,7 @@ int
 imsg_compose(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, void *data, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf, type, peerid, pid, datalen)) == NULL)
 		return (-1);
@@ -154,7 +154,7 @@ int
 imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, const struct iovec *iov, int iovcnt)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	int		 i, datalen = 0;
 
 	for (i = 0; i < iovcnt; i++)
@@ -175,11 +175,11 @@ imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 /* ARGSUSED */
-struct buf *
+struct ibuf *
 imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	struct imsg_hdr	 hdr;
 
 	datalen += IMSG_HEADER_SIZE;
@@ -193,7 +193,7 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 	hdr.peerid = peerid;
 	if ((hdr.pid = pid) == 0)
 		hdr.pid = ibuf->pid;
-	if ((wbuf = buf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
+	if ((wbuf = ibuf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
 		return (NULL);
 	}
 	if (imsg_add(wbuf, &hdr, sizeof(hdr)) == -1)
@@ -203,18 +203,18 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 int
-imsg_add(struct buf *msg, void *data, u_int16_t datalen)
+imsg_add(struct ibuf *msg, void *data, u_int16_t datalen)
 {
 	if (datalen)
-		if (buf_add(msg, data, datalen) == -1) {
-			buf_free(msg);
+		if (ibuf_add(msg, data, datalen) == -1) {
+			ibuf_free(msg);
 			return (-1);
 		}
 	return (datalen);
 }
 
 void
-imsg_close(struct imsgbuf *ibuf, struct buf *msg)
+imsg_close(struct imsgbuf *ibuf, struct ibuf *msg)
 {
 	struct imsg_hdr	*hdr;
 
@@ -226,7 +226,7 @@ imsg_close(struct imsgbuf *ibuf, struct buf *msg)
 
 	hdr->len = (u_int16_t)msg->wpos;
 
-	buf_close(&ibuf->w, msg);
+	ibuf_close(&ibuf->w, msg);
 }
 
 void
diff --git a/usr.sbin/ospfd/imsg.h b/usr.sbin/ospfd/imsg.h
index 7a1e5cd041b..90baba107fa 100644
--- a/usr.sbin/ospfd/imsg.h
+++ b/usr.sbin/ospfd/imsg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.h,v 1.9 2010/04/27 21:04:04 nicm Exp $	*/
+/*	$OpenBSD: imsg.h,v 1.10 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -18,12 +18,12 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define READ_BUF_SIZE		65535
+#define IBUF_READ_SIZE		65535
 #define IMSG_HEADER_SIZE	sizeof(struct imsg_hdr)
 #define MAX_IMSGSIZE		16384
 
-struct buf {
-	TAILQ_ENTRY(buf)	 entry;
+struct ibuf {
+	TAILQ_ENTRY(ibuf)	 entry;
 	u_char			*buf;
 	size_t			 size;
 	size_t			 max;
@@ -33,13 +33,13 @@ struct buf {
 };
 
 struct msgbuf {
-	TAILQ_HEAD(, buf)	 bufs;
+	TAILQ_HEAD(, ibuf)	 bufs;
 	u_int32_t		 queued;
 	int			 fd;
 };
 
-struct buf_read {
-	u_char			 buf[READ_BUF_SIZE];
+struct ibuf_read {
+	u_char			 buf[IBUF_READ_SIZE];
 	u_char			*rptr;
 	size_t			 wpos;
 };
@@ -51,7 +51,7 @@ struct imsg_fd {
 
 struct imsgbuf {
 	TAILQ_HEAD(, imsg_fd)	 fds;
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	int			 fd;
 	pid_t			 pid;
@@ -75,16 +75,16 @@ struct imsg {
 
 
 /* buffer.c */
-struct buf	*buf_open(size_t);
-struct buf	*buf_dynamic(size_t, size_t);
-int		 buf_add(struct buf *, const void *, size_t);
-void		*buf_reserve(struct buf *, size_t);
-void		*buf_seek(struct buf *, size_t, size_t);
-size_t		 buf_size(struct buf *);
-size_t		 buf_left(struct buf *);
-void		 buf_close(struct msgbuf *, struct buf *);
-int		 buf_write(struct msgbuf *);
-void		 buf_free(struct buf *);
+struct ibuf	*ibuf_open(size_t);
+struct ibuf	*ibuf_dynamic(size_t, size_t);
+int		 ibuf_add(struct ibuf *, const void *, size_t);
+void		*ibuf_reserve(struct ibuf *, size_t);
+void		*ibuf_seek(struct ibuf *, size_t, size_t);
+size_t		 ibuf_size(struct ibuf *);
+size_t		 ibuf_left(struct ibuf *);
+void		 ibuf_close(struct msgbuf *, struct ibuf *);
+int		 ibuf_write(struct msgbuf *);
+void		 ibuf_free(struct ibuf *);
 void		 msgbuf_init(struct msgbuf *);
 void		 msgbuf_clear(struct msgbuf *);
 int		 msgbuf_write(struct msgbuf *);
@@ -98,10 +98,10 @@ int	 imsg_compose(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 int	 imsg_composev(struct imsgbuf *, u_int32_t, u_int32_t,  pid_t,
 	    int, const struct iovec *, int);
-struct buf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
+struct ibuf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    u_int16_t);
-int	 imsg_add(struct buf *, void *, u_int16_t);
-void	 imsg_close(struct imsgbuf *, struct buf *);
+int	 imsg_add(struct ibuf *, void *, u_int16_t);
+void	 imsg_close(struct imsgbuf *, struct ibuf *);
 void	 imsg_free(struct imsg *);
 int	 imsg_flush(struct imsgbuf *);
 void	 imsg_clear(struct imsgbuf *);
diff --git a/usr.sbin/ospfd/lsack.c b/usr.sbin/ospfd/lsack.c
index 81a118a1f03..2d0236c338b 100644
--- a/usr.sbin/ospfd/lsack.c
+++ b/usr.sbin/ospfd/lsack.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lsack.c,v 1.18 2009/01/31 08:55:00 claudio Exp $ */
+/*	$OpenBSD: lsack.c,v 1.19 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
@@ -38,11 +38,11 @@ int
 send_ls_ack(struct iface *iface, struct in_addr addr, void *data, size_t len)
 {
 	struct sockaddr_in	 dst;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	int			 ret;
 
-	/* XXX READ_BUF_SIZE */
-	if ((buf = buf_dynamic(PKG_DEF_SIZE, READ_BUF_SIZE)) == NULL)
+	/* XXX IBUF_READ_SIZE */
+	if ((buf = ibuf_dynamic(PKG_DEF_SIZE, READ_BUF_SIZE)) == NULL)
 		fatal("send_ls_ack");
 
 	dst.sin_family = AF_INET;
@@ -54,7 +54,7 @@ send_ls_ack(struct iface *iface, struct in_addr addr, void *data, size_t len)
 		goto fail;
 
 	/* LS ack(s) */
-	if (buf_add(buf, data, len))
+	if (ibuf_add(buf, data, len))
 		goto fail;
 
 	/* update authentication and calculate checksum */
@@ -63,11 +63,11 @@ send_ls_ack(struct iface *iface, struct in_addr addr, void *data, size_t len)
 
 	ret = send_packet(iface, buf, &dst);
 
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_ls_ack");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/ospfd/lsreq.c b/usr.sbin/ospfd/lsreq.c
index 646bcfa64b0..840df7b24c3 100644
--- a/usr.sbin/ospfd/lsreq.c
+++ b/usr.sbin/ospfd/lsreq.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lsreq.c,v 1.18 2009/06/06 07:31:26 eric Exp $ */
+/*	$OpenBSD: lsreq.c,v 1.19 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
@@ -36,10 +36,10 @@ send_ls_req(struct nbr *nbr)
 	struct sockaddr_in	 dst;
 	struct ls_req_hdr	 ls_req_hdr;
 	struct lsa_entry	*le, *nle;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	int			 ret;
 
-	if ((buf = buf_open(nbr->iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(nbr->iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("send_ls_req");
 
 	/* set destination */
@@ -66,13 +66,13 @@ send_ls_req(struct nbr *nbr)
 
 	/* LSA header(s), keep space for a possible md5 sum */
 	for (le = TAILQ_FIRST(&nbr->ls_req_list); le != NULL &&
-	    buf_left(buf) >= sizeof(struct ls_req_hdr) + MD5_DIGEST_LENGTH;
+	    ibuf_left(buf) >= sizeof(struct ls_req_hdr) + MD5_DIGEST_LENGTH;
 	    le = nle) {
 		nbr->ls_req = nle = TAILQ_NEXT(le, entry);
 		ls_req_hdr.type = htonl(le->le_lsa->type);
 		ls_req_hdr.ls_id = le->le_lsa->ls_id;
 		ls_req_hdr.adv_rtr = le->le_lsa->adv_rtr;
-		if (buf_add(buf, &ls_req_hdr, sizeof(ls_req_hdr)))
+		if (ibuf_add(buf, &ls_req_hdr, sizeof(ls_req_hdr)))
 			goto fail;
 	}
 
@@ -82,11 +82,11 @@ send_ls_req(struct nbr *nbr)
 
 	ret = send_packet(nbr->iface, buf, &dst);
 
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_ls_req");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
diff --git a/usr.sbin/ospfd/lsupdate.c b/usr.sbin/ospfd/lsupdate.c
index b0cd2c0d280..9b00628f98d 100644
--- a/usr.sbin/ospfd/lsupdate.c
+++ b/usr.sbin/ospfd/lsupdate.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lsupdate.c,v 1.38 2009/06/06 07:31:26 eric Exp $ */
+/*	$OpenBSD: lsupdate.c,v 1.39 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
@@ -35,10 +35,10 @@
 extern struct ospfd_conf	*oeconf;
 extern struct imsgev		*iev_rde;
 
-struct buf *prepare_ls_update(struct iface *);
-int	add_ls_update(struct buf *, struct iface *, void *, u_int16_t,
+struct ibuf *prepare_ls_update(struct iface *);
+int	add_ls_update(struct ibuf *, struct iface *, void *, u_int16_t,
 	    u_int16_t);
-int	send_ls_update(struct buf *, struct iface *, struct in_addr, u_int32_t);
+int	send_ls_update(struct ibuf *, struct iface *, struct in_addr, u_int32_t);
 
 void	ls_retrans_list_insert(struct nbr *, struct lsa_entry *);
 void	ls_retrans_list_remove(struct nbr *, struct lsa_entry *);
@@ -147,12 +147,12 @@ lsa_flood(struct iface *iface, struct nbr *originator, struct lsa_hdr *lsa_hdr,
 	return (dont_ack == 2);
 }
 
-struct buf *
+struct ibuf *
 prepare_ls_update(struct iface *iface)
 {
-	struct buf		*buf;
+	struct ibuf		*buf;
 
-	if ((buf = buf_open(iface->mtu - sizeof(struct ip))) == NULL)
+	if ((buf = ibuf_open(iface->mtu - sizeof(struct ip))) == NULL)
 		fatal("prepare_ls_update");
 
 	/* OSPF header */
@@ -160,28 +160,28 @@ prepare_ls_update(struct iface *iface)
 		goto fail;
 
 	/* reserve space for number of lsa field */
-	if (buf_reserve(buf, sizeof(u_int32_t)) == NULL)
+	if (ibuf_reserve(buf, sizeof(u_int32_t)) == NULL)
 		goto fail;
 
 	return (buf);
 fail:
 	log_warn("prepare_ls_update");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (NULL);
 }
 
 int
-add_ls_update(struct buf *buf, struct iface *iface, void *data, u_int16_t len,
+add_ls_update(struct ibuf *buf, struct iface *iface, void *data, u_int16_t len,
     u_int16_t older)
 {
 	void		*lsage;
 	u_int16_t	 age;
 
-	if (buf_left(buf) < (size_t)len + MD5_DIGEST_LENGTH)
+	if (ibuf_left(buf) < (size_t)len + MD5_DIGEST_LENGTH)
 		return (0);
 
-	lsage = buf_reserve(buf, 0);
-	if (buf_add(buf, data, len)) {
+	lsage = ibuf_reserve(buf, 0);
+	if (ibuf_add(buf, data, len)) {
 		log_warn("add_ls_update");
 		return (0);
 	}
@@ -200,14 +200,14 @@ add_ls_update(struct buf *buf, struct iface *iface, void *data, u_int16_t len,
 
 
 int
-send_ls_update(struct buf *buf, struct iface *iface, struct in_addr addr,
+send_ls_update(struct ibuf *buf, struct iface *iface, struct in_addr addr,
     u_int32_t nlsa)
 {
 	struct sockaddr_in	 dst;
 	int			 ret;
 
 	nlsa = htonl(nlsa);
-	memcpy(buf_seek(buf, sizeof(struct ospf_hdr), sizeof(nlsa)),
+	memcpy(ibuf_seek(buf, sizeof(struct ospf_hdr), sizeof(nlsa)),
 	    &nlsa, sizeof(nlsa));
 	/* update authentication and calculate checksum */
 	if (auth_gen(buf, iface))
@@ -220,11 +220,11 @@ send_ls_update(struct buf *buf, struct iface *iface, struct in_addr addr,
 
 	ret = send_packet(iface, buf, &dst);
 
-	buf_free(buf);
+	ibuf_free(buf);
 	return (ret);
 fail:
 	log_warn("send_ls_update");
-	buf_free(buf);
+	ibuf_free(buf);
 	return (-1);
 }
 
@@ -425,7 +425,7 @@ ls_retrans_timer(int fd, short event, void *bula)
 	struct in_addr		 addr;
 	struct nbr		*nbr = bula;
 	struct lsa_entry	*le;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	time_t			 now;
 	int			 d;
 	u_int32_t		 nlsa = 0;
diff --git a/usr.sbin/ospfd/ospfe.c b/usr.sbin/ospfd/ospfe.c
index 7b2f19d339a..2f4a502c392 100644
--- a/usr.sbin/ospfd/ospfe.c
+++ b/usr.sbin/ospfd/ospfe.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ospfe.c,v 1.74 2010/02/16 18:27:11 claudio Exp $ */
+/*	$OpenBSD: ospfe.c,v 1.75 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
@@ -183,7 +183,7 @@ ospfe(struct ospfd_conf *xconf, int pipe_parent2ospfe[2], int pipe_ospfe2rde[2],
 	TAILQ_INIT(&ctl_conns);
 	control_listen();
 
-	if ((pkt_ptr = calloc(1, READ_BUF_SIZE)) == NULL)
+	if ((pkt_ptr = calloc(1, IBUF_READ_SIZE)) == NULL)
 		fatal("ospfe");
 
 	/* start interfaces */
@@ -748,7 +748,7 @@ orig_rtr_lsa(struct area *area)
 	struct lsa_rtr		 lsa_rtr;
 	struct lsa_rtr_link	 rtr_link;
 	struct iface		*iface;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct nbr		*nbr, *self = NULL;
 	u_int16_t		 num_links = 0;
 	u_int16_t		 chksum;
@@ -756,16 +756,16 @@ orig_rtr_lsa(struct area *area)
 
 	log_debug("orig_rtr_lsa: area %s", inet_ntoa(area->id));
 
-	/* XXX READ_BUF_SIZE */
-	if ((buf = buf_dynamic(sizeof(lsa_hdr), READ_BUF_SIZE)) == NULL)
+	/* XXX IBUF_READ_SIZE */
+	if ((buf = ibuf_dynamic(sizeof(lsa_hdr), READ_BUF_SIZE)) == NULL)
 		fatal("orig_rtr_lsa");
 
 	/* reserve space for LSA header and LSA Router header */
-	if (buf_reserve(buf, sizeof(lsa_hdr)) == NULL)
-		fatal("orig_rtr_lsa: buf_reserve failed");
+	if (ibuf_reserve(buf, sizeof(lsa_hdr)) == NULL)
+		fatal("orig_rtr_lsa: ibuf_reserve failed");
 
-	if (buf_reserve(buf, sizeof(lsa_rtr)) == NULL)
-		fatal("orig_rtr_lsa: buf_reserve failed");
+	if (ibuf_reserve(buf, sizeof(lsa_rtr)) == NULL)
+		fatal("orig_rtr_lsa: ibuf_reserve failed");
 
 	/* links */
 	LIST_FOREACH(iface, &area->iface_list, entry) {
@@ -780,7 +780,7 @@ orig_rtr_lsa(struct area *area)
 			rtr_link.type = LINK_TYPE_STUB_NET;
 			rtr_link.metric = htons(iface->metric);
 			num_links++;
-			if (buf_add(buf, &rtr_link, sizeof(rtr_link)))
+			if (ibuf_add(buf, &rtr_link, sizeof(rtr_link)))
 				fatalx("orig_rtr_lsa: buf_add failed");
 			continue;
 		}
@@ -804,7 +804,7 @@ orig_rtr_lsa(struct area *area)
 				else
 					rtr_link.metric = htons(iface->metric);
 				num_links++;
-				if (buf_add(buf, &rtr_link, sizeof(rtr_link)))
+				if (ibuf_add(buf, &rtr_link, sizeof(rtr_link)))
 					fatalx("orig_rtr_lsa: buf_add failed");
 			}
 			if (iface->state & IF_STA_POINTTOPOINT) {
@@ -821,7 +821,7 @@ orig_rtr_lsa(struct area *area)
 				rtr_link.type = LINK_TYPE_STUB_NET;
 				rtr_link.metric = htons(iface->metric);
 				num_links++;
-				if (buf_add(buf, &rtr_link, sizeof(rtr_link)))
+				if (ibuf_add(buf, &rtr_link, sizeof(rtr_link)))
 					fatalx("orig_rtr_lsa: buf_add failed");
 			}
 			continue;
@@ -882,8 +882,8 @@ orig_rtr_lsa(struct area *area)
 			else
 				rtr_link.metric = htons(iface->metric);
 			num_links++;
-			if (buf_add(buf, &rtr_link, sizeof(rtr_link)))
-				fatalx("orig_rtr_lsa: buf_add failed");
+			if (ibuf_add(buf, &rtr_link, sizeof(rtr_link)))
+				fatalx("orig_rtr_lsa: ibuf_add failed");
 			continue;
 		case IF_TYPE_VIRTUALLINK:
 			LIST_FOREACH(nbr, &iface->nbr_list, entry) {
@@ -903,8 +903,8 @@ orig_rtr_lsa(struct area *area)
 					rtr_link.metric = htons(iface->metric);
 				num_links++;
 				virtual = 1;
-				if (buf_add(buf, &rtr_link, sizeof(rtr_link)))
-					fatalx("orig_rtr_lsa: buf_add failed");
+				if (ibuf_add(buf, &rtr_link, sizeof(rtr_link)))
+					fatalx("orig_rtr_lsa: ibuf_add failed");
 
 				log_debug("orig_rtr_lsa: virtual link, "
 				    "interface %s", iface->name);
@@ -918,8 +918,8 @@ orig_rtr_lsa(struct area *area)
 			rtr_link.type = LINK_TYPE_STUB_NET;
 			rtr_link.metric = htons(iface->metric);
 			num_links++;
-			if (buf_add(buf, &rtr_link, sizeof(rtr_link)))
-				fatalx("orig_rtr_lsa: buf_add failed");
+			if (ibuf_add(buf, &rtr_link, sizeof(rtr_link)))
+				fatalx("orig_rtr_lsa: ibuf_add failed");
 
 			LIST_FOREACH(nbr, &iface->nbr_list, entry) {
 				if (nbr != iface->self &&
@@ -939,10 +939,10 @@ orig_rtr_lsa(struct area *area)
 						rtr_link.metric =
 						    htons(iface->metric);
 					num_links++;
-					if (buf_add(buf, &rtr_link,
+					if (ibuf_add(buf, &rtr_link,
 					    sizeof(rtr_link)))
 						fatalx("orig_rtr_lsa: "
-						    "buf_add failed");
+						    "ibuf_add failed");
 				}
 			}
 			continue;
@@ -958,8 +958,8 @@ orig_rtr_lsa(struct area *area)
 		else
 			rtr_link.metric = htons(iface->metric);
 		num_links++;
-		if (buf_add(buf, &rtr_link, sizeof(rtr_link)))
-			fatalx("orig_rtr_lsa: buf_add failed");
+		if (ibuf_add(buf, &rtr_link, sizeof(rtr_link)))
+			fatalx("orig_rtr_lsa: ibuf_add failed");
 	}
 
 	/* LSA router header */
@@ -987,7 +987,7 @@ orig_rtr_lsa(struct area *area)
 
 	lsa_rtr.dummy = 0;
 	lsa_rtr.nlinks = htons(num_links);
-	memcpy(buf_seek(buf, sizeof(lsa_hdr), sizeof(lsa_rtr)),
+	memcpy(ibuf_seek(buf, sizeof(lsa_hdr), sizeof(lsa_rtr)),
 	    &lsa_rtr, sizeof(lsa_rtr));
 
 	/* LSA header */
@@ -997,22 +997,22 @@ orig_rtr_lsa(struct area *area)
 	lsa_hdr.ls_id = oeconf->rtr_id.s_addr;
 	lsa_hdr.adv_rtr = oeconf->rtr_id.s_addr;
 	lsa_hdr.seq_num = htonl(INIT_SEQ_NUM);
-	lsa_hdr.len = htons(buf_size(buf));
+	lsa_hdr.len = htons(ibuf_size(buf));
 	lsa_hdr.ls_chksum = 0;		/* updated later */
-	memcpy(buf_seek(buf, 0, sizeof(lsa_hdr)), &lsa_hdr, sizeof(lsa_hdr));
+	memcpy(ibuf_seek(buf, 0, sizeof(lsa_hdr)), &lsa_hdr, sizeof(lsa_hdr));
 
-	chksum = htons(iso_cksum(buf->buf, buf_size(buf), LS_CKSUM_OFFSET));
-	memcpy(buf_seek(buf, LS_CKSUM_OFFSET, sizeof(chksum)),
+	chksum = htons(iso_cksum(buf->buf, ibuf_size(buf), LS_CKSUM_OFFSET));
+	memcpy(ibuf_seek(buf, LS_CKSUM_OFFSET, sizeof(chksum)),
 	    &chksum, sizeof(chksum));
 
 	if (self)
 		imsg_compose_event(iev_rde, IMSG_LS_UPD, self->peerid, 0,
-		    -1, buf->buf, buf_size(buf));
+		    -1, buf->buf, ibuf_size(buf));
 	else
 		log_warnx("orig_rtr_lsa: empty area %s",
 		    inet_ntoa(area->id));
 
-	buf_free(buf);
+	ibuf_free(buf);
 }
 
 void
@@ -1020,33 +1020,33 @@ orig_net_lsa(struct iface *iface)
 {
 	struct lsa_hdr		 lsa_hdr;
 	struct nbr		*nbr;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	int			 num_rtr = 0;
 	u_int16_t		 chksum;
 
-	/* XXX READ_BUF_SIZE */
-	if ((buf = buf_dynamic(sizeof(lsa_hdr), READ_BUF_SIZE)) == NULL)
+	/* XXX IBUF_READ_SIZE */
+	if ((buf = ibuf_dynamic(sizeof(lsa_hdr), IBUF_READ_SIZE)) == NULL)
 		fatal("orig_net_lsa");
 
 	/* reserve space for LSA header and LSA Router header */
-	if (buf_reserve(buf, sizeof(lsa_hdr)) == NULL)
-		fatal("orig_net_lsa: buf_reserve failed");
+	if (ibuf_reserve(buf, sizeof(lsa_hdr)) == NULL)
+		fatal("orig_net_lsa: ibuf_reserve failed");
 
 	/* LSA net mask and then all fully adjacent routers */
-	if (buf_add(buf, &iface->mask, sizeof(iface->mask)))
-		fatal("orig_net_lsa: buf_add failed");
+	if (ibuf_add(buf, &iface->mask, sizeof(iface->mask)))
+		fatal("orig_net_lsa: ibuf_add failed");
 
 	/* fully adjacent neighbors + self */
 	LIST_FOREACH(nbr, &iface->nbr_list, entry)
 		if (nbr->state & NBR_STA_FULL) {
-			if (buf_add(buf, &nbr->id, sizeof(nbr->id)))
-				fatal("orig_net_lsa: buf_add failed");
+			if (ibuf_add(buf, &nbr->id, sizeof(nbr->id)))
+				fatal("orig_net_lsa: ibuf_add failed");
 			num_rtr++;
 		}
 
 	if (num_rtr == 1) {
 		/* non transit net therefore no need to generate a net lsa */
-		buf_free(buf);
+		ibuf_free(buf);
 		return;
 	}
 
@@ -1061,18 +1061,18 @@ orig_net_lsa(struct iface *iface)
 	lsa_hdr.ls_id = iface->addr.s_addr;
 	lsa_hdr.adv_rtr = oeconf->rtr_id.s_addr;
 	lsa_hdr.seq_num = htonl(INIT_SEQ_NUM);
-	lsa_hdr.len = htons(buf_size(buf));
+	lsa_hdr.len = htons(ibuf_size(buf));
 	lsa_hdr.ls_chksum = 0;		/* updated later */
-	memcpy(buf_seek(buf, 0, sizeof(lsa_hdr)), &lsa_hdr, sizeof(lsa_hdr));
+	memcpy(ibuf_seek(buf, 0, sizeof(lsa_hdr)), &lsa_hdr, sizeof(lsa_hdr));
 
-	chksum = htons(iso_cksum(buf->buf, buf_size(buf), LS_CKSUM_OFFSET));
-	memcpy(buf_seek(buf, LS_CKSUM_OFFSET, sizeof(chksum)),
+	chksum = htons(iso_cksum(buf->buf, ibuf_size(buf), LS_CKSUM_OFFSET));
+	memcpy(ibuf_seek(buf, LS_CKSUM_OFFSET, sizeof(chksum)),
 	    &chksum, sizeof(chksum));
 
 	imsg_compose_event(iev_rde, IMSG_LS_UPD, iface->self->peerid, 0,
-	    -1, buf->buf, buf_size(buf));
+	    -1, buf->buf, ibuf_size(buf));
 
-	buf_free(buf);
+	ibuf_free(buf);
 }
 
 u_int32_t
diff --git a/usr.sbin/ospfd/ospfe.h b/usr.sbin/ospfd/ospfe.h
index f55de72e176..b6fe009b8ce 100644
--- a/usr.sbin/ospfd/ospfe.h
+++ b/usr.sbin/ospfd/ospfe.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ospfe.h,v 1.41 2009/08/09 23:04:16 claudio Exp $ */
+/*	$OpenBSD: ospfe.h,v 1.42 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
@@ -97,7 +97,7 @@ struct nbr {
 /* auth.c */
 int		 auth_validate(void *buf, u_int16_t len, struct iface *,
 		     struct nbr *);
-int		 auth_gen(struct buf *, struct iface *);
+int		 auth_gen(struct ibuf *, struct iface *);
 void		 md_list_add(struct auth_md_head *, u_int8_t, char *);
 void		 md_list_copy(struct auth_md_head *, struct auth_md_head *);
 void		 md_list_clr(struct auth_md_head *);
@@ -233,8 +233,8 @@ struct ctl_nbr	*nbr_to_ctl(struct nbr *);
 struct lsa_hdr	*lsa_hdr_new(void);
 
 /* packet.c */
-int	 gen_ospf_hdr(struct buf *, struct iface *, u_int8_t);
-int	 send_packet(struct iface *, struct buf *, struct sockaddr_in *);
+int	 gen_ospf_hdr(struct ibuf *, struct iface *, u_int8_t);
+int	 send_packet(struct iface *, struct ibuf *, struct sockaddr_in *);
 void	 recv_packet(int, short, void *);
 
 char	*pkt_ptr;	/* packet buffer */
diff --git a/usr.sbin/ospfd/packet.c b/usr.sbin/ospfd/packet.c
index 5f48fc8b30d..6885a9d3cf2 100644
--- a/usr.sbin/ospfd/packet.c
+++ b/usr.sbin/ospfd/packet.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: packet.c,v 1.29 2010/02/16 18:04:39 claudio Exp $ */
+/*	$OpenBSD: packet.c,v 1.30 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
@@ -42,7 +42,7 @@ int		 ospf_hdr_sanity_check(const struct ip *,
 struct iface	*find_iface(struct ospfd_conf *, unsigned int, struct in_addr);
 
 int
-gen_ospf_hdr(struct buf *buf, struct iface *iface, u_int8_t type)
+gen_ospf_hdr(struct ibuf *buf, struct iface *iface, u_int8_t type)
 {
 	struct ospf_hdr	ospf_hdr;
 
@@ -54,12 +54,12 @@ gen_ospf_hdr(struct buf *buf, struct iface *iface, u_int8_t type)
 		ospf_hdr.area_id = iface->area->id.s_addr;
 	ospf_hdr.auth_type = htons(iface->auth_type);
 
-	return (buf_add(buf, &ospf_hdr, sizeof(ospf_hdr)));
+	return (ibuf_add(buf, &ospf_hdr, sizeof(ospf_hdr)));
 }
 
 /* send and receive packets */
 int
-send_packet(struct iface *iface, struct buf *buf, struct sockaddr_in *dst)
+send_packet(struct iface *iface, struct ibuf *buf, struct sockaddr_in *dst)
 {
 	struct msghdr		 msg;
 	struct iovec		 iov[2];
@@ -70,7 +70,7 @@ send_packet(struct iface *iface, struct buf *buf, struct sockaddr_in *dst)
 	ip_hdr.ip_v = IPVERSION;
 	ip_hdr.ip_hl = sizeof(ip_hdr) >> 2;
 	ip_hdr.ip_tos = IPTOS_PREC_INTERNETCONTROL;
-	ip_hdr.ip_len = htons(buf_size(buf) + sizeof(ip_hdr));
+	ip_hdr.ip_len = htons(ibuf_size(buf) + sizeof(ip_hdr));
 	ip_hdr.ip_id = 0;  /* 0 means kernel set appropriate value */
 	ip_hdr.ip_off = 0;
 	ip_hdr.ip_ttl = iface->type != IF_TYPE_VIRTUALLINK ?
@@ -85,7 +85,7 @@ send_packet(struct iface *iface, struct buf *buf, struct sockaddr_in *dst)
 	iov[0].iov_base = &ip_hdr;
 	iov[0].iov_len = sizeof(ip_hdr);
 	iov[1].iov_base = buf->buf;
-	iov[1].iov_len = buf_size(buf);
+	iov[1].iov_len = ibuf_size(buf);
 	msg.msg_name = dst;
 	msg.msg_namelen = sizeof(*dst);
 	msg.msg_iov = iov;
diff --git a/usr.sbin/ospfd/rde.c b/usr.sbin/ospfd/rde.c
index c42abef4353..bd76d373ce0 100644
--- a/usr.sbin/ospfd/rde.c
+++ b/usr.sbin/ospfd/rde.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: rde.c,v 1.84 2009/11/11 07:59:10 claudio Exp $ */
+/*	$OpenBSD: rde.c,v 1.85 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2004, 2005 Claudio Jeker <claudio@openbsd.org>
@@ -738,7 +738,7 @@ rde_send_change_kroute(struct rt_node *r)
 	int			 krcount = 0;
 	struct kroute		 kr;
 	struct rt_nexthop	*rn;
-	struct buf		*wbuf;
+	struct ibuf		*wbuf;
 
 	if ((wbuf = imsg_create(&iev_main->ibuf, IMSG_KROUTE_CHANGE, 0, 0,
 	    sizeof(kr))) == NULL) {
diff --git a/usr.sbin/relayd/buffer.c b/usr.sbin/relayd/buffer.c
index 512afa59022..1e6d9d43b7f 100644
--- a/usr.sbin/relayd/buffer.c
+++ b/usr.sbin/relayd/buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: buffer.c,v 1.22 2009/09/15 10:54:59 jacekm Exp $	*/
+/*	$OpenBSD: buffer.c,v 1.23 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -28,16 +28,16 @@
 
 #include "imsg.h"
 
-int	buf_realloc(struct buf *, size_t);
-void	buf_enqueue(struct msgbuf *, struct buf *);
-void	buf_dequeue(struct msgbuf *, struct buf *);
+int	ibuf_realloc(struct ibuf *, size_t);
+void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
-struct buf *
-buf_open(size_t len)
+struct ibuf *
+ibuf_open(size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
-	if ((buf = calloc(1, sizeof(struct buf))) == NULL)
+	if ((buf = calloc(1, sizeof(struct ibuf))) == NULL)
 		return (NULL);
 	if ((buf->buf = malloc(len)) == NULL) {
 		free(buf);
@@ -49,15 +49,15 @@ buf_open(size_t len)
 	return (buf);
 }
 
-struct buf *
-buf_dynamic(size_t len, size_t max)
+struct ibuf *
+ibuf_dynamic(size_t len, size_t max)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (max < len)
 		return (NULL);
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
 	if (max > 0)
@@ -67,7 +67,7 @@ buf_dynamic(size_t len, size_t max)
 }
 
 int
-buf_realloc(struct buf *buf, size_t len)
+ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
 
@@ -87,10 +87,10 @@ buf_realloc(struct buf *buf, size_t len)
 }
 
 int
-buf_add(struct buf *buf, const void *data, size_t len)
+ibuf_add(struct ibuf *buf, const void *data, size_t len)
 {
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (-1);
 
 	memcpy(buf->buf + buf->wpos, data, len);
@@ -99,12 +99,12 @@ buf_add(struct buf *buf, const void *data, size_t len)
 }
 
 void *
-buf_reserve(struct buf *buf, size_t len)
+ibuf_reserve(struct ibuf *buf, size_t len)
 {
 	void	*b;
 
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (NULL);
 
 	b = buf->buf + buf->wpos;
@@ -113,7 +113,7 @@ buf_reserve(struct buf *buf, size_t len)
 }
 
 void *
-buf_seek(struct buf *buf, size_t pos, size_t len)
+ibuf_seek(struct ibuf *buf, size_t pos, size_t len)
 {
 	/* only allowed to seek in already written parts */
 	if (pos + len > buf->wpos)
@@ -123,28 +123,28 @@ buf_seek(struct buf *buf, size_t pos, size_t len)
 }
 
 size_t
-buf_size(struct buf *buf)
+ibuf_size(struct ibuf *buf)
 {
 	return (buf->wpos);
 }
 
 size_t
-buf_left(struct buf *buf)
+ibuf_left(struct ibuf *buf)
 {
 	return (buf->max - buf->wpos);
 }
 
 void
-buf_close(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_close(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	buf_enqueue(msgbuf, buf);
+	ibuf_enqueue(msgbuf, buf);
 }
 
 int
-buf_write(struct msgbuf *msgbuf)
+ibuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t	n;
 
@@ -176,7 +176,7 @@ buf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_free(struct buf *buf)
+ibuf_free(struct ibuf *buf)
 {
 	free(buf->buf);
 	free(buf);
@@ -193,14 +193,14 @@ msgbuf_init(struct msgbuf *msgbuf)
 void
 msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 {
-	struct buf	*buf, *next;
+	struct ibuf	*buf, *next;
 
 	for (buf = TAILQ_FIRST(&msgbuf->bufs); buf != NULL && n > 0;
 	    buf = next) {
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
-			buf_dequeue(msgbuf, buf);
+			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
 			n = 0;
@@ -211,17 +211,17 @@ msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 void
 msgbuf_clear(struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
-		buf_dequeue(msgbuf, buf);
+		ibuf_dequeue(msgbuf, buf);
 }
 
 int
 msgbuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t		 n;
 	struct msghdr	 msg;
@@ -284,14 +284,14 @@ msgbuf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_enqueue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
 void
-buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 
@@ -299,5 +299,5 @@ buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
 		close(buf->fd);
 
 	msgbuf->queued--;
-	buf_free(buf);
+	ibuf_free(buf);
 }
diff --git a/usr.sbin/relayd/check_tcp.c b/usr.sbin/relayd/check_tcp.c
index f88fa8b295b..65c3734b913 100644
--- a/usr.sbin/relayd/check_tcp.c
+++ b/usr.sbin/relayd/check_tcp.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: check_tcp.c,v 1.36 2010/02/18 14:02:16 jsg Exp $	*/
+/*	$OpenBSD: check_tcp.c,v 1.37 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -176,7 +176,7 @@ tcp_host_up(int s, struct ctl_tcp_event *cte)
 		return;
 	}
 
-	if ((cte->buf = buf_dynamic(SMALL_READ_BUF_SIZE, UINT_MAX)) == NULL)
+	if ((cte->buf = ibuf_dynamic(SMALL_READ_BUF_SIZE, UINT_MAX)) == NULL)
 		fatalx("tcp_host_up: cannot create dynamic buffer");
 	event_again(&cte->ev, s, EV_TIMEOUT|EV_READ, tcp_read_buf,
 	    &cte->tv_start, &cte->table->conf.timeout, cte);
@@ -211,7 +211,7 @@ tcp_send_req(int s, short event, void *arg)
 		len -= bs;
 	} while (len > 0);
 
-	if ((cte->buf = buf_dynamic(SMALL_READ_BUF_SIZE, UINT_MAX)) == NULL)
+	if ((cte->buf = ibuf_dynamic(SMALL_READ_BUF_SIZE, UINT_MAX)) == NULL)
 		fatalx("tcp_send_req: cannot create dynamic buffer");
 	event_again(&cte->ev, s, EV_TIMEOUT|EV_READ, tcp_read_buf,
 	    &cte->tv_start, &cte->table->conf.timeout, cte);
@@ -231,7 +231,7 @@ tcp_read_buf(int s, short event, void *arg)
 
 	if (event == EV_TIMEOUT) {
 		cte->host->up = HOST_DOWN;
-		buf_free(cte->buf);
+		ibuf_free(cte->buf);
 		close(s);
 		hce_notify_done(cte->host, HCE_TCP_READ_TIMEOUT);
 		return;
@@ -244,7 +244,7 @@ tcp_read_buf(int s, short event, void *arg)
 		if (errno == EAGAIN || errno == EINTR)
 			goto retry;
 		cte->host->up = HOST_DOWN;
-		buf_free(cte->buf);
+		ibuf_free(cte->buf);
 		close(cte->s);
 		hce_notify_done(cte->host, HCE_TCP_READ_FAIL);
 		return;
@@ -252,18 +252,18 @@ tcp_read_buf(int s, short event, void *arg)
 		cte->host->up = HOST_DOWN;
 		(void)cte->validate_close(cte);
 		close(cte->s);
-		buf_free(cte->buf);
+		ibuf_free(cte->buf);
 		hce_notify_done(cte->host, cte->host->he);
 		return;
 	default:
-		if (buf_add(cte->buf, rbuf, br) == -1)
+		if (ibuf_add(cte->buf, rbuf, br) == -1)
 			fatal("tcp_read_buf: buf_add error");
 		if (cte->validate_read != NULL) {
 			if (cte->validate_read(cte) != 0)
 				goto retry;
 
 			close(cte->s);
-			buf_free(cte->buf);
+			ibuf_free(cte->buf);
 			hce_notify_done(cte->host, cte->host->he);
 			return;
 		}
@@ -282,7 +282,7 @@ check_send_expect(struct ctl_tcp_event *cte)
 	/*
 	 * ensure string is nul-terminated.
 	 */
-	b = buf_reserve(cte->buf, 1);
+	b = ibuf_reserve(cte->buf, 1);
 	if (b == NULL)
 		fatal("out of memory");
 	*b = '\0';
@@ -314,7 +314,7 @@ check_http_code(struct ctl_tcp_event *cte)
 	/*
 	 * ensure string is nul-terminated.
 	 */
-	b = buf_reserve(cte->buf, 1);
+	b = ibuf_reserve(cte->buf, 1);
 	if (b == NULL)
 		fatal("out of memory");
 	*b = '\0';
@@ -366,7 +366,7 @@ check_http_digest(struct ctl_tcp_event *cte)
 	/*
 	 * ensure string is nul-terminated.
 	 */
-	b = buf_reserve(cte->buf, 1);
+	b = ibuf_reserve(cte->buf, 1);
 	if (b == NULL)
 		fatal("out of memory");
 	*b = '\0';
diff --git a/usr.sbin/relayd/imsg.c b/usr.sbin/relayd/imsg.c
index 4110ffde012..780efebc145 100644
--- a/usr.sbin/relayd/imsg.c
+++ b/usr.sbin/relayd/imsg.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.30 2010/04/07 18:09:39 nicm Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.31 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -135,7 +135,7 @@ int
 imsg_compose(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, void *data, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf, type, peerid, pid, datalen)) == NULL)
 		return (-1);
@@ -154,7 +154,7 @@ int
 imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, const struct iovec *iov, int iovcnt)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	int		 i, datalen = 0;
 
 	for (i = 0; i < iovcnt; i++)
@@ -175,11 +175,11 @@ imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 /* ARGSUSED */
-struct buf *
+struct ibuf *
 imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	struct imsg_hdr	 hdr;
 
 	datalen += IMSG_HEADER_SIZE;
@@ -193,7 +193,7 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 	hdr.peerid = peerid;
 	if ((hdr.pid = pid) == 0)
 		hdr.pid = ibuf->pid;
-	if ((wbuf = buf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
+	if ((wbuf = ibuf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
 		return (NULL);
 	}
 	if (imsg_add(wbuf, &hdr, sizeof(hdr)) == -1)
@@ -203,18 +203,18 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 int
-imsg_add(struct buf *msg, void *data, u_int16_t datalen)
+imsg_add(struct ibuf *msg, void *data, u_int16_t datalen)
 {
 	if (datalen)
-		if (buf_add(msg, data, datalen) == -1) {
-			buf_free(msg);
+		if (ibuf_add(msg, data, datalen) == -1) {
+			ibuf_free(msg);
 			return (-1);
 		}
 	return (datalen);
 }
 
 void
-imsg_close(struct imsgbuf *ibuf, struct buf *msg)
+imsg_close(struct imsgbuf *ibuf, struct ibuf *msg)
 {
 	struct imsg_hdr	*hdr;
 
@@ -226,7 +226,7 @@ imsg_close(struct imsgbuf *ibuf, struct buf *msg)
 
 	hdr->len = (u_int16_t)msg->wpos;
 
-	buf_close(&ibuf->w, msg);
+	ibuf_close(&ibuf->w, msg);
 }
 
 void
diff --git a/usr.sbin/relayd/imsg.h b/usr.sbin/relayd/imsg.h
index 983d9205d93..ba4c6863078 100644
--- a/usr.sbin/relayd/imsg.h
+++ b/usr.sbin/relayd/imsg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.h,v 1.14 2010/04/27 21:04:04 nicm Exp $	*/
+/*	$OpenBSD: imsg.h,v 1.15 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -18,12 +18,12 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define READ_BUF_SIZE		65535
+#define IBUF_READ_SIZE		65535
 #define IMSG_HEADER_SIZE	sizeof(struct imsg_hdr)
 #define MAX_IMSGSIZE		16384
 
-struct buf {
-	TAILQ_ENTRY(buf)	 entry;
+struct ibuf {
+	TAILQ_ENTRY(ibuf)	 entry;
 	u_char			*buf;
 	size_t			 size;
 	size_t			 max;
@@ -33,13 +33,13 @@ struct buf {
 };
 
 struct msgbuf {
-	TAILQ_HEAD(, buf)	 bufs;
+	TAILQ_HEAD(, ibuf)	 bufs;
 	u_int32_t		 queued;
 	int			 fd;
 };
 
-struct buf_read {
-	u_char			 buf[READ_BUF_SIZE];
+struct ibuf_read {
+	u_char			 buf[IBUF_READ_SIZE];
 	u_char			*rptr;
 	size_t			 wpos;
 };
@@ -51,7 +51,7 @@ struct imsg_fd {
 
 struct imsgbuf {
 	TAILQ_HEAD(, imsg_fd)	 fds;
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	int			 fd;
 	pid_t			 pid;
@@ -75,16 +75,16 @@ struct imsg {
 
 
 /* buffer.c */
-struct buf	*buf_open(size_t);
-struct buf	*buf_dynamic(size_t, size_t);
-int		 buf_add(struct buf *, const void *, size_t);
-void		*buf_reserve(struct buf *, size_t);
-void		*buf_seek(struct buf *, size_t, size_t);
-size_t		 buf_size(struct buf *);
-size_t		 buf_left(struct buf *);
-void		 buf_close(struct msgbuf *, struct buf *);
-int		 buf_write(struct msgbuf *);
-void		 buf_free(struct buf *);
+struct ibuf	*ibuf_open(size_t);
+struct ibuf	*ibuf_dynamic(size_t, size_t);
+int		 ibuf_add(struct ibuf *, const void *, size_t);
+void		*ibuf_reserve(struct ibuf *, size_t);
+void		*ibuf_seek(struct ibuf *, size_t, size_t);
+size_t		 ibuf_size(struct ibuf *);
+size_t		 ibuf_left(struct ibuf *);
+void		 ibuf_close(struct msgbuf *, struct ibuf *);
+int		 ibuf_write(struct msgbuf *);
+void		 ibuf_free(struct ibuf *);
 void		 msgbuf_init(struct msgbuf *);
 void		 msgbuf_clear(struct msgbuf *);
 int		 msgbuf_write(struct msgbuf *);
@@ -98,10 +98,10 @@ int	 imsg_compose(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 int	 imsg_composev(struct imsgbuf *, u_int32_t, u_int32_t,  pid_t,
 	    int, const struct iovec *, int);
-struct buf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
+struct ibuf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    u_int16_t);
-int	 imsg_add(struct buf *, void *, u_int16_t);
-void	 imsg_close(struct imsgbuf *, struct buf *);
+int	 imsg_add(struct ibuf *, void *, u_int16_t);
+void	 imsg_close(struct imsgbuf *, struct ibuf *);
 void	 imsg_free(struct imsg *);
 int	 imsg_flush(struct imsgbuf *);
 void	 imsg_clear(struct imsgbuf *);
diff --git a/usr.sbin/relayd/relay.c b/usr.sbin/relayd/relay.c
index 751c35d81e5..a0562187c16 100644
--- a/usr.sbin/relayd/relay.c
+++ b/usr.sbin/relayd/relay.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: relay.c,v 1.120 2010/05/14 11:13:36 reyk Exp $	*/
+/*	$OpenBSD: relay.c,v 1.121 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007, 2008 Reyk Floeter <reyk@openbsd.org>
@@ -928,7 +928,7 @@ relay_resolve(struct ctl_relay_event *cre,
     struct protonode *proot, struct protonode *pn)
 {
 	struct rsession		*con = (struct rsession *)cre->con;
-	char			 buf[READ_BUF_SIZE], *ptr;
+	char			 buf[IBUF_READ_SIZE], *ptr;
 	int			 id;
 
 	if (pn->mark && (pn->mark != con->se_mark))
@@ -1072,7 +1072,7 @@ relay_handle_http(struct ctl_relay_event *cre, struct protonode *proot,
     struct protonode *pn, struct protonode *pk, int header)
 {
 	struct rsession		*con = (struct rsession *)cre->con;
-	char			 buf[READ_BUF_SIZE], *ptr;
+	char			 buf[IBUF_READ_SIZE], *ptr;
 	int			 ret = PN_DROP, mark = 0;
 	struct protonode	*next;
 
@@ -2878,8 +2878,8 @@ relay_ssl_readcb(int fd, short event, void *arg)
 	int ret = 0, ssl_err = 0;
 	short what = EVBUFFER_READ;
 	size_t len;
-	char rbuf[READ_BUF_SIZE];
-	int howmuch = READ_BUF_SIZE;
+	char rbuf[IBUF_READ_SIZE];
+	int howmuch = IBUF_READ_SIZE;
 
 	if (event == EV_TIMEOUT) {
 		what |= EVBUFFER_TIMEOUT;
diff --git a/usr.sbin/relayd/relay_udp.c b/usr.sbin/relayd/relay_udp.c
index 9f75de248f9..45af8476daf 100644
--- a/usr.sbin/relayd/relay_udp.c
+++ b/usr.sbin/relayd/relay_udp.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: relay_udp.c,v 1.21 2009/08/07 11:21:53 reyk Exp $	*/
+/*	$OpenBSD: relay_udp.c,v 1.22 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2007, 2008 Reyk Floeter <reyk@openbsd.org>
@@ -178,7 +178,7 @@ relay_udp_response(int fd, short sig, void *arg)
 	struct protocol		*proto = rlay->rl_proto;
 	void			*priv = NULL;
 	struct sockaddr_storage	 ss;
-	u_int8_t		 buf[READ_BUF_SIZE];
+	u_int8_t		 buf[IBUF_READ_SIZE];
 	ssize_t			 len;
 	socklen_t		 slen;
 
@@ -216,7 +216,7 @@ relay_udp_server(int fd, short sig, void *arg)
 	socklen_t slen;
 	struct timeval tv;
 	struct sockaddr_storage ss;
-	u_int8_t buf[READ_BUF_SIZE];
+	u_int8_t buf[IBUF_READ_SIZE];
 	void *priv = NULL;
 	ssize_t len;
 
diff --git a/usr.sbin/relayd/relayd.h b/usr.sbin/relayd/relayd.h
index 24c86bf865b..21e3833cf05 100644
--- a/usr.sbin/relayd/relayd.h
+++ b/usr.sbin/relayd/relayd.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: relayd.h,v 1.135 2010/05/14 11:13:36 reyk Exp $	*/
+/*	$OpenBSD: relayd.h,v 1.136 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -116,7 +116,7 @@ struct ctl_icmp_event {
 struct ctl_tcp_event {
 	int			 s;
 	char			*req;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct host		*host;
 	struct table		*table;
 	struct timeval		 tv_start;
diff --git a/usr.sbin/relayd/ssl.c b/usr.sbin/relayd/ssl.c
index 9f4081d551a..6688b2fdec8 100644
--- a/usr.sbin/relayd/ssl.c
+++ b/usr.sbin/relayd/ssl.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ssl.c,v 1.15 2009/06/04 13:46:07 reyk Exp $	*/
+/*	$OpenBSD: ssl.c,v 1.16 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -91,7 +91,7 @@ ssl_read(int s, short event, void *arg)
 		}
 		return;
 	}
-	if (buf_add(cte->buf, rbuf, ret) == -1)
+	if (ibuf_add(cte->buf, rbuf, ret) == -1)
 		fatal("ssl_read: buf_add error");
 	if (cte->validate_read != NULL) {
 		if (cte->validate_read(cte) != 0)
@@ -145,7 +145,7 @@ ssl_write(int s, short event, void *arg)
 			return;
 		}
 	}
-	if ((cte->buf = buf_dynamic(SMALL_READ_BUF_SIZE, UINT_MAX)) == NULL)
+	if ((cte->buf = ibuf_dynamic(SMALL_READ_BUF_SIZE, UINT_MAX)) == NULL)
 		fatalx("ssl_write: cannot create dynamic buffer");
 
 	event_again(&cte->ev, s, EV_TIMEOUT|EV_READ, ssl_read,
@@ -204,7 +204,7 @@ ssl_connect(int s, short event, void *arg)
 		return;
 	}
 
-	if ((cte->buf = buf_dynamic(SMALL_READ_BUF_SIZE, UINT_MAX)) == NULL)
+	if ((cte->buf = ibuf_dynamic(SMALL_READ_BUF_SIZE, UINT_MAX)) == NULL)
 		fatalx("ssl_connect: cannot create dynamic buffer");
 	event_again(&cte->ev, cte->s, EV_TIMEOUT|EV_READ, ssl_read,
 	    &cte->tv_start, &cte->table->conf.timeout, cte);
@@ -224,7 +224,7 @@ ssl_cleanup(struct ctl_tcp_event *cte)
 		SSL_clear(cte->ssl);
 	}
 	if (cte->buf != NULL)
-		buf_free(cte->buf);
+		ibuf_free(cte->buf);
 }
 
 void
diff --git a/usr.sbin/ripd/auth.c b/usr.sbin/ripd/auth.c
index 78f41169ca5..d0917d06e1e 100644
--- a/usr.sbin/ripd/auth.c
+++ b/usr.sbin/ripd/auth.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: auth.c,v 1.10 2009/09/26 11:12:50 michele Exp $ */
+/*	$OpenBSD: auth.c,v 1.11 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2006 Michele Marchetto <mydecay@openbeer.it>
@@ -31,7 +31,7 @@
 
 u_int32_t	 auth_calc_modulator(struct auth_md *md);
 struct auth_md	*md_list_find(struct auth_md_head *, u_int8_t);
-void		 auth_trailer_header_gen(struct buf *);
+void		 auth_trailer_header_gen(struct ibuf *);
 u_int32_t	 auth_get_seq_num(struct auth_md*);
 
 u_int32_t
@@ -58,13 +58,13 @@ auth_get_seq_num(struct auth_md *md)
 }
 
 void
-auth_trailer_header_gen(struct buf *buf)
+auth_trailer_header_gen(struct ibuf *buf)
 {
 	u_int16_t	 field1 = 0xFFFF;
 	u_int16_t	 field2 = htons(0x01);
 
-	buf_add(buf, &field1, sizeof(field1));
-	buf_add(buf, &field2, sizeof(field2));
+	ibuf_add(buf, &field1, sizeof(field1));
+	ibuf_add(buf, &field2, sizeof(field2));
 }
 
 /* XXX add the support for key lifetime and rollover */
@@ -184,7 +184,7 @@ auth_validate(u_int8_t **buf, u_int16_t *len, struct iface *iface,
 }
 
 int
-auth_gen(struct buf *buf, struct iface *iface)
+auth_gen(struct ibuf *buf, struct iface *iface)
 {
 	struct rip_auth		 auth_head;
 	struct md5_auth		 a;
@@ -193,11 +193,11 @@ auth_gen(struct buf *buf, struct iface *iface)
 	auth_head.auth_fixed = AUTH;
 	auth_head.auth_type = htons(iface->auth_type);
 
-	buf_add(buf, &auth_head, sizeof(auth_head));
+	ibuf_add(buf, &auth_head, sizeof(auth_head));
 
 	switch (iface->auth_type) {
 	case AUTH_SIMPLE:
-		buf_add(buf, &iface->auth_key, MAX_SIMPLE_AUTH_LEN);
+		ibuf_add(buf, &iface->auth_key, MAX_SIMPLE_AUTH_LEN);
 		break;
 	case AUTH_CRYPT:
 		if ((md = md_list_find(&iface->auth_md_list,
@@ -211,7 +211,7 @@ auth_gen(struct buf *buf, struct iface *iface)
 		a.auth_seq = htonl(auth_get_seq_num(md));
 		a.auth_length = MD5_DIGEST_LENGTH + AUTH_TRLR_HDR_LEN;
 
-		buf_add(buf, &a, sizeof(a));
+		ibuf_add(buf, &a, sizeof(a));
 		break;
 	default:
 		log_debug("auth_gen: unknown auth type, interface %s",
@@ -223,7 +223,7 @@ auth_gen(struct buf *buf, struct iface *iface)
 }
 
 int
-auth_add_trailer(struct buf *buf, struct iface *iface)
+auth_add_trailer(struct ibuf *buf, struct iface *iface)
 {
 	MD5_CTX			 hash;
 	u_int8_t		 digest[MD5_DIGEST_LENGTH];
@@ -234,7 +234,7 @@ auth_add_trailer(struct buf *buf, struct iface *iface)
 	pos = sizeof(struct rip_hdr) + sizeof(struct rip_auth);
 
 	/* add offset to header */
-	a = buf_seek(buf, pos, sizeof(*a));
+	a = ibuf_seek(buf, pos, sizeof(*a));
 	a->auth_offset = htons(buf->wpos);
 
 	/* insert plaintext key */
@@ -255,7 +255,7 @@ auth_add_trailer(struct buf *buf, struct iface *iface)
 	MD5Update(&hash, digest, MD5_DIGEST_LENGTH);
 	MD5Final(digest, &hash);
 
-	return (buf_add(buf, digest, MD5_DIGEST_LENGTH));
+	return (ibuf_add(buf, digest, MD5_DIGEST_LENGTH));
 }
 
 /* md list */
diff --git a/usr.sbin/ripd/buffer.c b/usr.sbin/ripd/buffer.c
index adba24d73d2..cea9406880a 100644
--- a/usr.sbin/ripd/buffer.c
+++ b/usr.sbin/ripd/buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: buffer.c,v 1.5 2009/09/15 10:54:59 jacekm Exp $	*/
+/*	$OpenBSD: buffer.c,v 1.6 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -28,16 +28,16 @@
 
 #include "imsg.h"
 
-int	buf_realloc(struct buf *, size_t);
-void	buf_enqueue(struct msgbuf *, struct buf *);
-void	buf_dequeue(struct msgbuf *, struct buf *);
+int	ibuf_realloc(struct ibuf *, size_t);
+void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
-struct buf *
-buf_open(size_t len)
+struct ibuf *
+ibuf_open(size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
-	if ((buf = calloc(1, sizeof(struct buf))) == NULL)
+	if ((buf = calloc(1, sizeof(struct ibuf))) == NULL)
 		return (NULL);
 	if ((buf->buf = malloc(len)) == NULL) {
 		free(buf);
@@ -49,15 +49,15 @@ buf_open(size_t len)
 	return (buf);
 }
 
-struct buf *
-buf_dynamic(size_t len, size_t max)
+struct ibuf *
+ibuf_dynamic(size_t len, size_t max)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (max < len)
 		return (NULL);
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
 	if (max > 0)
@@ -67,7 +67,7 @@ buf_dynamic(size_t len, size_t max)
 }
 
 int
-buf_realloc(struct buf *buf, size_t len)
+ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
 
@@ -87,10 +87,10 @@ buf_realloc(struct buf *buf, size_t len)
 }
 
 int
-buf_add(struct buf *buf, const void *data, size_t len)
+ibuf_add(struct ibuf *buf, const void *data, size_t len)
 {
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (-1);
 
 	memcpy(buf->buf + buf->wpos, data, len);
@@ -99,12 +99,12 @@ buf_add(struct buf *buf, const void *data, size_t len)
 }
 
 void *
-buf_reserve(struct buf *buf, size_t len)
+ibuf_reserve(struct ibuf *buf, size_t len)
 {
 	void	*b;
 
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (NULL);
 
 	b = buf->buf + buf->wpos;
@@ -113,7 +113,7 @@ buf_reserve(struct buf *buf, size_t len)
 }
 
 void *
-buf_seek(struct buf *buf, size_t pos, size_t len)
+ibuf_seek(struct ibuf *buf, size_t pos, size_t len)
 {
 	/* only allowed to seek in already written parts */
 	if (pos + len > buf->wpos)
@@ -123,28 +123,28 @@ buf_seek(struct buf *buf, size_t pos, size_t len)
 }
 
 size_t
-buf_size(struct buf *buf)
+ibuf_size(struct ibuf *buf)
 {
 	return (buf->wpos);
 }
 
 size_t
-buf_left(struct buf *buf)
+ibuf_left(struct ibuf *buf)
 {
 	return (buf->max - buf->wpos);
 }
 
 void
-buf_close(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_close(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	buf_enqueue(msgbuf, buf);
+	ibuf_enqueue(msgbuf, buf);
 }
 
 int
-buf_write(struct msgbuf *msgbuf)
+ibuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t	n;
 
@@ -176,7 +176,7 @@ buf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_free(struct buf *buf)
+ibuf_free(struct ibuf *buf)
 {
 	free(buf->buf);
 	free(buf);
@@ -193,14 +193,14 @@ msgbuf_init(struct msgbuf *msgbuf)
 void
 msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 {
-	struct buf	*buf, *next;
+	struct ibuf	*buf, *next;
 
 	for (buf = TAILQ_FIRST(&msgbuf->bufs); buf != NULL && n > 0;
 	    buf = next) {
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
-			buf_dequeue(msgbuf, buf);
+			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
 			n = 0;
@@ -211,17 +211,17 @@ msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 void
 msgbuf_clear(struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
-		buf_dequeue(msgbuf, buf);
+		ibuf_dequeue(msgbuf, buf);
 }
 
 int
 msgbuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t		 n;
 	struct msghdr	 msg;
@@ -284,14 +284,14 @@ msgbuf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_enqueue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
 void
-buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 
@@ -299,5 +299,5 @@ buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
 		close(buf->fd);
 
 	msgbuf->queued--;
-	buf_free(buf);
+	ibuf_free(buf);
 }
diff --git a/usr.sbin/ripd/imsg.c b/usr.sbin/ripd/imsg.c
index 53ca8b4385a..f736a7fc429 100644
--- a/usr.sbin/ripd/imsg.c
+++ b/usr.sbin/ripd/imsg.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.9 2010/04/07 18:09:39 nicm Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.10 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -135,7 +135,7 @@ int
 imsg_compose(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, void *data, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf, type, peerid, pid, datalen)) == NULL)
 		return (-1);
@@ -154,7 +154,7 @@ int
 imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, const struct iovec *iov, int iovcnt)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	int		 i, datalen = 0;
 
 	for (i = 0; i < iovcnt; i++)
@@ -175,11 +175,11 @@ imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 /* ARGSUSED */
-struct buf *
+struct ibuf *
 imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	struct imsg_hdr	 hdr;
 
 	datalen += IMSG_HEADER_SIZE;
@@ -193,7 +193,7 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 	hdr.peerid = peerid;
 	if ((hdr.pid = pid) == 0)
 		hdr.pid = ibuf->pid;
-	if ((wbuf = buf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
+	if ((wbuf = ibuf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
 		return (NULL);
 	}
 	if (imsg_add(wbuf, &hdr, sizeof(hdr)) == -1)
@@ -203,18 +203,18 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 int
-imsg_add(struct buf *msg, void *data, u_int16_t datalen)
+imsg_add(struct ibuf *msg, void *data, u_int16_t datalen)
 {
 	if (datalen)
-		if (buf_add(msg, data, datalen) == -1) {
-			buf_free(msg);
+		if (ibuf_add(msg, data, datalen) == -1) {
+			ibuf_free(msg);
 			return (-1);
 		}
 	return (datalen);
 }
 
 void
-imsg_close(struct imsgbuf *ibuf, struct buf *msg)
+imsg_close(struct imsgbuf *ibuf, struct ibuf *msg)
 {
 	struct imsg_hdr	*hdr;
 
@@ -226,7 +226,7 @@ imsg_close(struct imsgbuf *ibuf, struct buf *msg)
 
 	hdr->len = (u_int16_t)msg->wpos;
 
-	buf_close(&ibuf->w, msg);
+	ibuf_close(&ibuf->w, msg);
 }
 
 void
diff --git a/usr.sbin/ripd/imsg.h b/usr.sbin/ripd/imsg.h
index 9fd3f2f4964..4e914c08e18 100644
--- a/usr.sbin/ripd/imsg.h
+++ b/usr.sbin/ripd/imsg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.h,v 1.5 2010/04/27 21:04:04 nicm Exp $	*/
+/*	$OpenBSD: imsg.h,v 1.6 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -18,12 +18,12 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define READ_BUF_SIZE		65535
+#define IBUF_READ_SIZE		65535
 #define IMSG_HEADER_SIZE	sizeof(struct imsg_hdr)
 #define MAX_IMSGSIZE		16384
 
-struct buf {
-	TAILQ_ENTRY(buf)	 entry;
+struct ibuf {
+	TAILQ_ENTRY(ibuf)	 entry;
 	u_char			*buf;
 	size_t			 size;
 	size_t			 max;
@@ -33,13 +33,13 @@ struct buf {
 };
 
 struct msgbuf {
-	TAILQ_HEAD(, buf)	 bufs;
+	TAILQ_HEAD(, ibuf)	 bufs;
 	u_int32_t		 queued;
 	int			 fd;
 };
 
-struct buf_read {
-	u_char			 buf[READ_BUF_SIZE];
+struct ibuf_read {
+	u_char			 buf[IBUF_READ_SIZE];
 	u_char			*rptr;
 	size_t			 wpos;
 };
@@ -51,7 +51,7 @@ struct imsg_fd {
 
 struct imsgbuf {
 	TAILQ_HEAD(, imsg_fd)	 fds;
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	int			 fd;
 	pid_t			 pid;
@@ -75,16 +75,16 @@ struct imsg {
 
 
 /* buffer.c */
-struct buf	*buf_open(size_t);
-struct buf	*buf_dynamic(size_t, size_t);
-int		 buf_add(struct buf *, const void *, size_t);
-void		*buf_reserve(struct buf *, size_t);
-void		*buf_seek(struct buf *, size_t, size_t);
-size_t		 buf_size(struct buf *);
-size_t		 buf_left(struct buf *);
-void		 buf_close(struct msgbuf *, struct buf *);
-int		 buf_write(struct msgbuf *);
-void		 buf_free(struct buf *);
+struct ibuf	*ibuf_open(size_t);
+struct ibuf	*ibuf_dynamic(size_t, size_t);
+int		 ibuf_add(struct ibuf *, const void *, size_t);
+void		*ibuf_reserve(struct ibuf *, size_t);
+void		*ibuf_seek(struct ibuf *, size_t, size_t);
+size_t		 ibuf_size(struct ibuf *);
+size_t		 ibuf_left(struct ibuf *);
+void		 ibuf_close(struct msgbuf *, struct ibuf *);
+int		 ibuf_write(struct msgbuf *);
+void		 ibuf_free(struct ibuf *);
 void		 msgbuf_init(struct msgbuf *);
 void		 msgbuf_clear(struct msgbuf *);
 int		 msgbuf_write(struct msgbuf *);
@@ -98,10 +98,10 @@ int	 imsg_compose(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 int	 imsg_composev(struct imsgbuf *, u_int32_t, u_int32_t,  pid_t,
 	    int, const struct iovec *, int);
-struct buf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
+struct ibuf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    u_int16_t);
-int	 imsg_add(struct buf *, void *, u_int16_t);
-void	 imsg_close(struct imsgbuf *, struct buf *);
+int	 imsg_add(struct ibuf *, void *, u_int16_t);
+void	 imsg_close(struct imsgbuf *, struct ibuf *);
 void	 imsg_free(struct imsg *);
 int	 imsg_flush(struct imsgbuf *);
 void	 imsg_clear(struct imsgbuf *);
diff --git a/usr.sbin/ripd/message.c b/usr.sbin/ripd/message.c
index 02060cf3105..acfa3480fd5 100644
--- a/usr.sbin/ripd/message.c
+++ b/usr.sbin/ripd/message.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: message.c,v 1.10 2008/04/13 00:22:17 djm Exp $ */
+/*	$OpenBSD: message.c,v 1.11 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2006 Michele Marchetto <mydecay@openbeer.it>
@@ -102,7 +102,7 @@ int
 send_triggered_update(struct iface *iface, struct rip_route *rr)
 {
 	struct sockaddr_in	 dst;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	u_int16_t		 afi, route_tag;
 	u_int32_t		 address, netmask, nexthop, metric;
 
@@ -115,7 +115,7 @@ send_triggered_update(struct iface *iface, struct rip_route *rr)
 	if (iface->passive)
 		return (0);
 
-	if ((buf = buf_open(iface->mtu - sizeof(struct ip) -
+	if ((buf = ibuf_open(iface->mtu - sizeof(struct ip) -
 	    sizeof(struct udphdr))) == NULL)
 		fatal("send_triggered_update");
 
@@ -129,15 +129,15 @@ send_triggered_update(struct iface *iface, struct rip_route *rr)
 	nexthop = rr->nexthop.s_addr;
 	metric = htonl(rr->metric);
 
-	buf_add(buf, &afi, sizeof(afi));
-	buf_add(buf, &route_tag, sizeof(route_tag));
-	buf_add(buf, &address, sizeof(address));
-	buf_add(buf, &netmask, sizeof(netmask));
-	buf_add(buf, &nexthop, sizeof(nexthop));
-	buf_add(buf, &metric, sizeof(metric));
+	ibuf_add(buf, &afi, sizeof(afi));
+	ibuf_add(buf, &route_tag, sizeof(route_tag));
+	ibuf_add(buf, &address, sizeof(address));
+	ibuf_add(buf, &netmask, sizeof(netmask));
+	ibuf_add(buf, &nexthop, sizeof(nexthop));
+	ibuf_add(buf, &metric, sizeof(metric));
 
 	send_packet(iface, buf->buf, buf->wpos, &dst);
-	buf_free(buf);
+	ibuf_free(buf);
 
 	return (0);
 }
@@ -145,7 +145,7 @@ send_triggered_update(struct iface *iface, struct rip_route *rr)
 int
 send_request(struct packet_head *r_list, struct iface *i, struct nbr *nbr)
 {
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct iface		*iface;
 	struct packet_entry	*entry;
 	struct sockaddr_in	 dst;
@@ -175,7 +175,7 @@ send_request(struct packet_head *r_list, struct iface *i, struct nbr *nbr)
 		return (0);
 
 	while (!TAILQ_EMPTY(r_list)) {
-		if ((buf = buf_open(iface->mtu - sizeof(struct ip) -
+		if ((buf = ibuf_open(iface->mtu - sizeof(struct ip) -
 		    sizeof(struct udphdr))) == NULL)
 			fatal("send_request");
 
@@ -198,12 +198,12 @@ send_request(struct packet_head *r_list, struct iface *i, struct nbr *nbr)
 			if (metric == htonl(INFINITY) && single_entry)
 				afi = AF_UNSPEC;
 
-			buf_add(buf, &afi, sizeof(afi));
-			buf_add(buf, &route_tag, sizeof(route_tag));
-			buf_add(buf, &address, sizeof(address));
-			buf_add(buf, &netmask, sizeof(netmask));
-			buf_add(buf, &nexthop, sizeof(nexthop));
-			buf_add(buf, &metric, sizeof(metric));
+			ibuf_add(buf, &afi, sizeof(afi));
+			ibuf_add(buf, &route_tag, sizeof(route_tag));
+			ibuf_add(buf, &address, sizeof(address));
+			ibuf_add(buf, &netmask, sizeof(netmask));
+			ibuf_add(buf, &nexthop, sizeof(nexthop));
+			ibuf_add(buf, &metric, sizeof(metric));
 
 			TAILQ_REMOVE(r_list, entry, entry);
 			delete_entry(entry->rr);
@@ -211,7 +211,7 @@ send_request(struct packet_head *r_list, struct iface *i, struct nbr *nbr)
 			nentries++;
 		}
 		send_packet(iface, buf->buf, buf->wpos, &dst);
-		buf_free(buf);
+		ibuf_free(buf);
 	}
 
 	return (0);
@@ -220,7 +220,7 @@ send_request(struct packet_head *r_list, struct iface *i, struct nbr *nbr)
 int
 send_response(struct packet_head *r_list, struct iface *i, struct nbr *nbr)
 {
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct iface		*iface;
 	struct packet_entry	*entry;
 	struct sockaddr_in	 dst;
@@ -249,7 +249,7 @@ send_response(struct packet_head *r_list, struct iface *i, struct nbr *nbr)
 		return (0);
 
 	while (!TAILQ_EMPTY(r_list)) {
-		if ((buf = buf_open(iface->mtu - sizeof(struct ip) -
+		if ((buf = ibuf_open(iface->mtu - sizeof(struct ip) -
 		    sizeof(struct udphdr))) == NULL)
 			fatal("send_response");
 
@@ -261,7 +261,7 @@ send_response(struct packet_head *r_list, struct iface *i, struct nbr *nbr)
 
 		if (iface->auth_type != AUTH_NONE) {
 			if (auth_gen(buf, iface) == -1) {
-				buf_free(buf);
+				ibuf_free(buf);
 				return (-1);
 			}
 			nentries++;
@@ -287,12 +287,12 @@ send_response(struct packet_head *r_list, struct iface *i, struct nbr *nbr)
 			    (iface->addr.s_addr & iface->mask.s_addr))
 				nexthop = INADDR_ANY;
 
-			buf_add(buf, &afi, sizeof(afi));
-			buf_add(buf, &route_tag, sizeof(route_tag));
-			buf_add(buf, &address, sizeof(address));
-			buf_add(buf, &netmask, sizeof(netmask));
-			buf_add(buf, &nexthop, sizeof(nexthop));
-			buf_add(buf, &metric, sizeof(metric));
+			ibuf_add(buf, &afi, sizeof(afi));
+			ibuf_add(buf, &route_tag, sizeof(route_tag));
+			ibuf_add(buf, &address, sizeof(address));
+			ibuf_add(buf, &netmask, sizeof(netmask));
+			ibuf_add(buf, &nexthop, sizeof(nexthop));
+			ibuf_add(buf, &metric, sizeof(metric));
 free:
 			TAILQ_REMOVE(r_list, entry, entry);
 			delete_entry(entry->rr);
@@ -304,7 +304,7 @@ free:
 			auth_add_trailer(buf, iface);
 
 		send_packet(iface, buf->buf, buf->wpos, &dst);
-		buf_free(buf);
+		ibuf_free(buf);
 	}
 
 	return (0);
diff --git a/usr.sbin/ripd/packet.c b/usr.sbin/ripd/packet.c
index 7447baee48c..4d7b07a3d1f 100644
--- a/usr.sbin/ripd/packet.c
+++ b/usr.sbin/ripd/packet.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: packet.c,v 1.10 2008/03/24 16:11:05 deraadt Exp $ */
+/*	$OpenBSD: packet.c,v 1.11 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2006 Michele Marchetto <mydecay@openbeer.it>
@@ -43,7 +43,7 @@ int		 rip_hdr_sanity_check(struct rip_hdr *);
 struct iface	*find_iface(struct ripd_conf *, unsigned int, struct in_addr);
 
 int
-gen_rip_hdr(struct buf *buf, u_int8_t command)
+gen_rip_hdr(struct ibuf *buf, u_int8_t command)
 {
 	struct rip_hdr	rip_hdr;
 
@@ -51,7 +51,7 @@ gen_rip_hdr(struct buf *buf, u_int8_t command)
 	rip_hdr.version = RIP_VERSION;
 	rip_hdr.command = command;
 
-	return (buf_add(buf, &rip_hdr, sizeof(rip_hdr)));
+	return (ibuf_add(buf, &rip_hdr, sizeof(rip_hdr)));
 }
 
 /* send and receive packets */
@@ -107,7 +107,7 @@ recv_packet(int fd, short event, void *bula)
 	bzero(&msg, sizeof(msg));
 
 	iov.iov_base = buf;
-	iov.iov_len = READ_BUF_SIZE;
+	iov.iov_len = IBUF_READ_SIZE;
 	msg.msg_name = &src;
 	msg.msg_namelen = sizeof(src);
 	msg.msg_iov = &iov;
diff --git a/usr.sbin/ripd/ripe.c b/usr.sbin/ripd/ripe.c
index 2d6f4f584c3..6e0ebac7a2f 100644
--- a/usr.sbin/ripd/ripe.c
+++ b/usr.sbin/ripd/ripe.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ripe.c,v 1.12 2009/06/06 08:20:55 eric Exp $ */
+/*	$OpenBSD: ripe.c,v 1.13 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2006 Michele Marchetto <mydecay@openbeer.it>
@@ -184,7 +184,7 @@ ripe(struct ripd_conf *xconf, int pipe_parent2ripe[2], int pipe_ripe2rde[2],
 	TAILQ_INIT(&ctl_conns);
 	control_listen();
 
-	if ((pkt_ptr = calloc(1, READ_BUF_SIZE)) == NULL)
+	if ((pkt_ptr = calloc(1, IBUF_READ_SIZE)) == NULL)
 		fatal("ripe");
 
 	/* start interfaces */
diff --git a/usr.sbin/ripd/ripe.h b/usr.sbin/ripd/ripe.h
index 7514d6baad9..8b624fc525f 100644
--- a/usr.sbin/ripd/ripe.h
+++ b/usr.sbin/ripd/ripe.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ripe.h,v 1.9 2008/12/17 14:19:39 michele Exp $ */
+/*	$OpenBSD: ripe.h,v 1.10 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2006 Michele Marchetto <mydecay@openbeer.it>
@@ -76,7 +76,7 @@ struct nbr {
 /* packet.c */
 int	 send_packet(struct iface *, void *, size_t, struct sockaddr_in *);
 void	 recv_packet(int, short, void *);
-int	 gen_rip_hdr(struct buf *, u_int8_t);
+int	 gen_rip_hdr(struct ibuf *, u_int8_t);
 
 /* interface.c */
 void			 if_init(struct ripd_conf *, struct iface *);
@@ -120,8 +120,8 @@ void	 ripe_demote_iface(struct iface *, int);
 /* auth.c */
 int	 auth_validate(u_int8_t **, u_int16_t *, struct iface *, struct nbr *,
 	    struct nbr_failed *, u_int32_t *);
-int	 auth_gen(struct buf *, struct iface *);
-int	 auth_add_trailer(struct buf *, struct iface *);
+int	 auth_gen(struct ibuf *, struct iface *);
+int	 auth_add_trailer(struct ibuf *, struct iface *);
 int	 md_list_add(struct auth_md_head *, u_int8_t, char *);
 void	 md_list_copy(struct auth_md_head *, struct auth_md_head *);
 void	 md_list_clr(struct auth_md_head *);
diff --git a/usr.sbin/smtpd/buffer.c b/usr.sbin/smtpd/buffer.c
index 96661c33723..bacec4a2163 100644
--- a/usr.sbin/smtpd/buffer.c
+++ b/usr.sbin/smtpd/buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: buffer.c,v 1.6 2009/09/15 10:54:59 jacekm Exp $	*/
+/*	$OpenBSD: buffer.c,v 1.7 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -28,16 +28,16 @@
 
 #include "imsg.h"
 
-int	buf_realloc(struct buf *, size_t);
-void	buf_enqueue(struct msgbuf *, struct buf *);
-void	buf_dequeue(struct msgbuf *, struct buf *);
+int	ibuf_realloc(struct ibuf *, size_t);
+void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
-struct buf *
-buf_open(size_t len)
+struct ibuf *
+ibuf_open(size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
-	if ((buf = calloc(1, sizeof(struct buf))) == NULL)
+	if ((buf = calloc(1, sizeof(struct ibuf))) == NULL)
 		return (NULL);
 	if ((buf->buf = malloc(len)) == NULL) {
 		free(buf);
@@ -49,15 +49,15 @@ buf_open(size_t len)
 	return (buf);
 }
 
-struct buf *
-buf_dynamic(size_t len, size_t max)
+struct ibuf *
+ibuf_dynamic(size_t len, size_t max)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (max < len)
 		return (NULL);
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
 	if (max > 0)
@@ -67,7 +67,7 @@ buf_dynamic(size_t len, size_t max)
 }
 
 int
-buf_realloc(struct buf *buf, size_t len)
+ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
 
@@ -87,10 +87,10 @@ buf_realloc(struct buf *buf, size_t len)
 }
 
 int
-buf_add(struct buf *buf, const void *data, size_t len)
+ibuf_add(struct ibuf *buf, const void *data, size_t len)
 {
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (-1);
 
 	memcpy(buf->buf + buf->wpos, data, len);
@@ -99,12 +99,12 @@ buf_add(struct buf *buf, const void *data, size_t len)
 }
 
 void *
-buf_reserve(struct buf *buf, size_t len)
+ibuf_reserve(struct ibuf *buf, size_t len)
 {
 	void	*b;
 
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (NULL);
 
 	b = buf->buf + buf->wpos;
@@ -113,7 +113,7 @@ buf_reserve(struct buf *buf, size_t len)
 }
 
 void *
-buf_seek(struct buf *buf, size_t pos, size_t len)
+ibuf_seek(struct ibuf *buf, size_t pos, size_t len)
 {
 	/* only allowed to seek in already written parts */
 	if (pos + len > buf->wpos)
@@ -123,28 +123,28 @@ buf_seek(struct buf *buf, size_t pos, size_t len)
 }
 
 size_t
-buf_size(struct buf *buf)
+ibuf_size(struct ibuf *buf)
 {
 	return (buf->wpos);
 }
 
 size_t
-buf_left(struct buf *buf)
+ibuf_left(struct ibuf *buf)
 {
 	return (buf->max - buf->wpos);
 }
 
 void
-buf_close(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_close(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	buf_enqueue(msgbuf, buf);
+	ibuf_enqueue(msgbuf, buf);
 }
 
 int
-buf_write(struct msgbuf *msgbuf)
+ibuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t	n;
 
@@ -176,7 +176,7 @@ buf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_free(struct buf *buf)
+ibuf_free(struct ibuf *buf)
 {
 	free(buf->buf);
 	free(buf);
@@ -193,14 +193,14 @@ msgbuf_init(struct msgbuf *msgbuf)
 void
 msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 {
-	struct buf	*buf, *next;
+	struct ibuf	*buf, *next;
 
 	for (buf = TAILQ_FIRST(&msgbuf->bufs); buf != NULL && n > 0;
 	    buf = next) {
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
-			buf_dequeue(msgbuf, buf);
+			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
 			n = 0;
@@ -211,17 +211,17 @@ msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 void
 msgbuf_clear(struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
-		buf_dequeue(msgbuf, buf);
+		ibuf_dequeue(msgbuf, buf);
 }
 
 int
 msgbuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t		 n;
 	struct msghdr	 msg;
@@ -284,14 +284,14 @@ msgbuf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_enqueue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
 void
-buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 
@@ -299,5 +299,5 @@ buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
 		close(buf->fd);
 
 	msgbuf->queued--;
-	buf_free(buf);
+	ibuf_free(buf);
 }
diff --git a/usr.sbin/smtpd/client.c b/usr.sbin/smtpd/client.c
index 0ea810abd34..538f514e364 100644
--- a/usr.sbin/smtpd/client.c
+++ b/usr.sbin/smtpd/client.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: client.c,v 1.26 2010/01/02 16:41:19 jacekm Exp $	*/
+/*	$OpenBSD: client.c,v 1.27 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2009 Jacek Masiulaniec <jacekm@dobremiasto.net>
@@ -48,7 +48,7 @@ int		 client_use_extensions(struct smtp_client *);
 void		 client_status(struct smtp_client *, char *, ...);
 int		 client_getln(struct smtp_client *, int);
 void		 client_putln(struct smtp_client *, char *, ...);
-struct buf	*client_content_read(FILE *, size_t);
+struct ibuf	*client_content_read(FILE *, size_t);
 int		 client_poll(struct smtp_client *);
 void		 client_quit(struct smtp_client *);
 
@@ -58,12 +58,12 @@ int		 client_socket_write(struct smtp_client *);
 #ifndef CLIENT_NO_SSL
 int		 client_ssl_connect(struct smtp_client *);
 SSL		*ssl_client_init(int, char *, size_t, char *, size_t);
-int		 ssl_buf_read(SSL *, struct buf_read *);
+int		 ssl_buf_read(SSL *, struct ibuf_read *);
 int		 ssl_buf_write(SSL *, struct msgbuf *);
 #endif
 
-char		*buf_getln(struct buf_read *);
-int		 buf_read(int, struct buf_read *);
+char		*buf_getln(struct ibuf_read *);
+int		 buf_read(int, struct ibuf_read *);
 
 void		 log_debug(const char *, ...);	/* XXX */
 void		 fatal(const char *);	/* XXX */
@@ -265,7 +265,7 @@ client_printf(struct smtp_client *sp, char *fmt, ...)
 	int	 len;
 
 	if (sp->head == NULL)
-		sp->head = buf_dynamic(0, SIZE_T_MAX);
+		sp->head = ibuf_dynamic(0, SIZE_T_MAX);
 	if (sp->head == NULL)
 		fatal(NULL);
 
@@ -282,11 +282,11 @@ client_printf(struct smtp_client *sp, char *fmt, ...)
 	/* split into lines, deal with dot escaping etc. */
 	tmp = p;
 	while ((ln = strsep(&tmp, "\n"))) {
-		if (*ln == '.' && buf_add(sp->head, ".", 1))
+		if (*ln == '.' && ibuf_add(sp->head, ".", 1))
 			fatal(NULL);
-		if (buf_add(sp->head, ln, strlen(ln)))
+		if (ibuf_add(sp->head, ln, strlen(ln)))
 			fatal(NULL);
-		if (buf_add(sp->head, "\r\n", 2))
+		if (ibuf_add(sp->head, "\r\n", 2))
 			fatal(NULL);
 	}
 
@@ -475,7 +475,7 @@ client_write(struct smtp_client *sp)
 	int			 ret;
 
 	if (sp->content) {
-		buf_close(&sp->w, sp->content);
+		ibuf_close(&sp->w, sp->content);
 		sp->content = client_content_read(sp->body, sp->sndlowat);
 	} else {
 		while (sp->cmdi < sp->cmdw) {
@@ -579,9 +579,9 @@ client_close(struct smtp_client *sp)
 	free(sp->auth.cert);
 	free(sp->auth.key);
 	if (sp->head)
-		buf_free(sp->head);
+		ibuf_free(sp->head);
 	if (sp->content)
-		buf_free(sp->content);
+		ibuf_free(sp->content);
 	msgbuf_clear(&sp->w);
 	while ((cmd = TAILQ_FIRST(&sp->cmdsendq))) {
 		TAILQ_REMOVE(&sp->cmdsendq, cmd, entry);
@@ -745,7 +745,7 @@ done:
 void
 client_putln(struct smtp_client *sp, char *fmt, ...)
 {
-	struct buf	*cmd = NULL;
+	struct ibuf	*cmd = NULL;
 	char		*p = NULL;
 	int		 len;
 	va_list		 ap;
@@ -757,13 +757,13 @@ client_putln(struct smtp_client *sp, char *fmt, ...)
 
 	fprintf(sp->verbose, ">>> %s\n", p);
 
-	if ((cmd = buf_open(len + 2)) == NULL)
+	if ((cmd = ibuf_open(len + 2)) == NULL)
 		fatal(NULL);
-	if (buf_add(cmd, p, len))
+	if (ibuf_add(cmd, p, len))
 		fatal(NULL);
-	if (buf_add(cmd, "\r\n", 2))
+	if (ibuf_add(cmd, "\r\n", 2))
 		fatal(NULL);
-	buf_close(&sp->w, cmd);
+	ibuf_close(&sp->w, cmd);
 
 	free(p);
 }
@@ -771,32 +771,32 @@ client_putln(struct smtp_client *sp, char *fmt, ...)
 /*
  * Put chunk of message content to output buffer.
  */
-struct buf *
+struct ibuf *
 client_content_read(FILE *fp, size_t max)
 {
-	struct buf	*b;
+	struct ibuf	*b;
 	char		*ln;
 	size_t		 len;
 
-	if ((b = buf_dynamic(0, SIZE_T_MAX)) == NULL)
+	if ((b = ibuf_dynamic(0, SIZE_T_MAX)) == NULL)
 		fatal(NULL);
 
-	while (buf_size(b) < max) {
+	while (ibuf_size(b) < max) {
 		if ((ln = fgetln(fp, &len)) == NULL)
 			break;
 		if (ln[len - 1] == '\n')
 			len--;
-		if (*ln == '.' && buf_add(b, ".", 1))
+		if (*ln == '.' && ibuf_add(b, ".", 1))
 			fatal(NULL);
-		if (buf_add(b, ln, len))
+		if (ibuf_add(b, ln, len))
 			fatal(NULL);
-		if (buf_add(b, "\r\n", 2))
+		if (ibuf_add(b, "\r\n", 2))
 			fatal(NULL);
 	}
 	if (ferror(fp))
 		fatal("client_body: fgetln");
-	if (feof(fp) && buf_size(b) == 0) {
-		buf_free(b);
+	if (feof(fp) && ibuf_size(b) == 0) {
+		ibuf_free(b);
 		b = NULL;
 	}
 
@@ -890,7 +890,7 @@ client_socket_write(struct smtp_client *sp)
 	}
 #endif
 	if (sp->ssl == NULL) {
-		if (buf_write(&sp->w) < 0) {
+		if (ibuf_write(&sp->w) < 0) {
 			client_status(sp, "130 buf_write error");
 			return (CLIENT_DONE);
 		}
@@ -903,7 +903,7 @@ client_socket_write(struct smtp_client *sp)
  * Read a full line from the read buffer.
  */
 char *
-buf_getln(struct buf_read *r)
+buf_getln(struct ibuf_read *r)
 {
 	char	*buf = r->buf, *line;
 	size_t	 bufsz = r->wpos, i;
@@ -935,7 +935,7 @@ buf_getln(struct buf_read *r)
  * I/O routine for reading UNIX socket.
  */
 int
-buf_read(int fd, struct buf_read *r)
+buf_read(int fd, struct ibuf_read *r)
 {
 	char		*buf = r->buf + r->wpos;
 	size_t		 bufsz = sizeof(r->buf) - r->wpos;
diff --git a/usr.sbin/smtpd/client.h b/usr.sbin/smtpd/client.h
index 34fa90bed34..1574fbd329e 100644
--- a/usr.sbin/smtpd/client.h
+++ b/usr.sbin/smtpd/client.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: client.h,v 1.11 2010/01/02 16:41:19 jacekm Exp $	*/
+/*	$OpenBSD: client.h,v 1.12 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2009 Jacek Masiulaniec <jacekm@dobremiasto.net>
@@ -86,15 +86,15 @@ struct smtp_client {
 	void			*rcptfail;
 	char			*ehlo;
 	char			 reply[1024];
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	void			*ssl;
 	int			 sndlowat;
 	struct timeval		 timeout;
 	FILE			*verbose;
 
-	struct buf		*content;	/* current chunk of content */
-	struct buf		*head;		/* headers + part of body */
+	struct ibuf		*content;	/* current chunk of content */
+	struct ibuf		*head;		/* headers + part of body */
 	FILE			*body;		/* rest of body */
 
 	struct client_ext	 exts[3];
diff --git a/usr.sbin/smtpd/imsg.c b/usr.sbin/smtpd/imsg.c
index 1d48703bfcc..97ca2c3c26a 100644
--- a/usr.sbin/smtpd/imsg.c
+++ b/usr.sbin/smtpd/imsg.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.12 2010/04/07 18:09:39 nicm Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.13 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -135,7 +135,7 @@ int
 imsg_compose(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, void *data, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf, type, peerid, pid, datalen)) == NULL)
 		return (-1);
@@ -154,7 +154,7 @@ int
 imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, const struct iovec *iov, int iovcnt)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	int		 i, datalen = 0;
 
 	for (i = 0; i < iovcnt; i++)
@@ -175,11 +175,11 @@ imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 /* ARGSUSED */
-struct buf *
+struct ibuf *
 imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	struct imsg_hdr	 hdr;
 
 	datalen += IMSG_HEADER_SIZE;
@@ -193,7 +193,7 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 	hdr.peerid = peerid;
 	if ((hdr.pid = pid) == 0)
 		hdr.pid = ibuf->pid;
-	if ((wbuf = buf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
+	if ((wbuf = ibuf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
 		return (NULL);
 	}
 	if (imsg_add(wbuf, &hdr, sizeof(hdr)) == -1)
@@ -203,18 +203,18 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 int
-imsg_add(struct buf *msg, void *data, u_int16_t datalen)
+imsg_add(struct ibuf *msg, void *data, u_int16_t datalen)
 {
 	if (datalen)
-		if (buf_add(msg, data, datalen) == -1) {
-			buf_free(msg);
+		if (ibuf_add(msg, data, datalen) == -1) {
+			ibuf_free(msg);
 			return (-1);
 		}
 	return (datalen);
 }
 
 void
-imsg_close(struct imsgbuf *ibuf, struct buf *msg)
+imsg_close(struct imsgbuf *ibuf, struct ibuf *msg)
 {
 	struct imsg_hdr	*hdr;
 
@@ -226,7 +226,7 @@ imsg_close(struct imsgbuf *ibuf, struct buf *msg)
 
 	hdr->len = (u_int16_t)msg->wpos;
 
-	buf_close(&ibuf->w, msg);
+	ibuf_close(&ibuf->w, msg);
 }
 
 void
diff --git a/usr.sbin/smtpd/imsg.h b/usr.sbin/smtpd/imsg.h
index c1a279dbdd5..47ccd8d27b8 100644
--- a/usr.sbin/smtpd/imsg.h
+++ b/usr.sbin/smtpd/imsg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.h,v 1.7 2010/04/27 21:04:04 nicm Exp $	*/
+/*	$OpenBSD: imsg.h,v 1.8 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -18,12 +18,12 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define READ_BUF_SIZE		65535
+#define IBUF_READ_SIZE		65535
 #define IMSG_HEADER_SIZE	sizeof(struct imsg_hdr)
 #define MAX_IMSGSIZE		16384
 
-struct buf {
-	TAILQ_ENTRY(buf)	 entry;
+struct ibuf {
+	TAILQ_ENTRY(ibuf)	 entry;
 	u_char			*buf;
 	size_t			 size;
 	size_t			 max;
@@ -33,13 +33,13 @@ struct buf {
 };
 
 struct msgbuf {
-	TAILQ_HEAD(, buf)	 bufs;
+	TAILQ_HEAD(, ibuf)	 bufs;
 	u_int32_t		 queued;
 	int			 fd;
 };
 
-struct buf_read {
-	u_char			 buf[READ_BUF_SIZE];
+struct ibuf_read {
+	u_char			 buf[IBUF_READ_SIZE];
 	u_char			*rptr;
 	size_t			 wpos;
 };
@@ -51,7 +51,7 @@ struct imsg_fd {
 
 struct imsgbuf {
 	TAILQ_HEAD(, imsg_fd)	 fds;
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	int			 fd;
 	pid_t			 pid;
@@ -75,16 +75,16 @@ struct imsg {
 
 
 /* buffer.c */
-struct buf	*buf_open(size_t);
-struct buf	*buf_dynamic(size_t, size_t);
-int		 buf_add(struct buf *, const void *, size_t);
-void		*buf_reserve(struct buf *, size_t);
-void		*buf_seek(struct buf *, size_t, size_t);
-size_t		 buf_size(struct buf *);
-size_t		 buf_left(struct buf *);
-void		 buf_close(struct msgbuf *, struct buf *);
-int		 buf_write(struct msgbuf *);
-void		 buf_free(struct buf *);
+struct ibuf	*ibuf_open(size_t);
+struct ibuf	*ibuf_dynamic(size_t, size_t);
+int		 ibuf_add(struct ibuf *, const void *, size_t);
+void		*ibuf_reserve(struct ibuf *, size_t);
+void		*ibuf_seek(struct ibuf *, size_t, size_t);
+size_t		 ibuf_size(struct ibuf *);
+size_t		 ibuf_left(struct ibuf *);
+void		 ibuf_close(struct msgbuf *, struct ibuf *);
+int		 ibuf_write(struct msgbuf *);
+void		 ibuf_free(struct ibuf *);
 void		 msgbuf_init(struct msgbuf *);
 void		 msgbuf_clear(struct msgbuf *);
 int		 msgbuf_write(struct msgbuf *);
@@ -98,10 +98,10 @@ int	 imsg_compose(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 int	 imsg_composev(struct imsgbuf *, u_int32_t, u_int32_t,  pid_t,
 	    int, const struct iovec *, int);
-struct buf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
+struct ibuf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    u_int16_t);
-int	 imsg_add(struct buf *, void *, u_int16_t);
-void	 imsg_close(struct imsgbuf *, struct buf *);
+int	 imsg_add(struct ibuf *, void *, u_int16_t);
+void	 imsg_close(struct imsgbuf *, struct ibuf *);
 void	 imsg_free(struct imsg *);
 int	 imsg_flush(struct imsgbuf *);
 void	 imsg_clear(struct imsgbuf *);
diff --git a/usr.sbin/smtpd/mda.c b/usr.sbin/smtpd/mda.c
index 006a896f5cb..a91e540295c 100644
--- a/usr.sbin/smtpd/mda.c
+++ b/usr.sbin/smtpd/mda.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mda.c,v 1.43 2010/04/21 18:54:43 jacekm Exp $	*/
+/*	$OpenBSD: mda.c,v 1.44 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2008 Gilles Chehade <gilles@openbsd.org>
@@ -341,7 +341,7 @@ void
 mda_store(struct mda_session *s)
 {
 	char		*p;
-	struct buf	*buf;
+	struct ibuf	*buf;
 	int		 len;
 
 	if (s->msg.sender.user[0] && s->msg.sender.domain[0])
@@ -357,11 +357,11 @@ mda_store(struct mda_session *s)
 		fatal("mda_store: asprintf");
 
 	session_socket_blockmode(s->w.fd, BM_NONBLOCK);
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		fatal(NULL);
-	if (buf_add(buf, p, len) < 0)
+	if (ibuf_add(buf, p, len) < 0)
 		fatal(NULL);
-	buf_close(&s->w, buf);
+	ibuf_close(&s->w, buf);
 	event_set(&s->ev, s->w.fd, EV_WRITE, mda_store_event, s);
 	event_add(&s->ev, NULL);
 	free(p);
@@ -372,11 +372,11 @@ mda_store_event(int fd, short event, void *p)
 {
 	char			 tmp[16384];
 	struct mda_session	*s = p;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	size_t			 len;
 
 	if (s->w.queued == 0) {
-		if ((buf = buf_dynamic(0, sizeof tmp)) == NULL)
+		if ((buf = ibuf_dynamic(0, sizeof tmp)) == NULL)
 			fatal(NULL);
 		len = fread(tmp, 1, sizeof tmp, s->datafp);
 		if (ferror(s->datafp))
@@ -386,12 +386,12 @@ mda_store_event(int fd, short event, void *p)
 			s->w.fd = -1;
 			return;
 		}
-		if (buf_add(buf, tmp, len) < 0)
+		if (ibuf_add(buf, tmp, len) < 0)
 			fatal(NULL);
-		buf_close(&s->w, buf);
+		ibuf_close(&s->w, buf);
 	}
 
-	if (buf_write(&s->w) < 0) {
+	if (ibuf_write(&s->w) < 0) {
 		close(s->w.fd);
 		s->w.fd = -1;
 		return;
diff --git a/usr.sbin/smtpd/ssl.c b/usr.sbin/smtpd/ssl.c
index 02a74762688..edd89acf730 100644
--- a/usr.sbin/smtpd/ssl.c
+++ b/usr.sbin/smtpd/ssl.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ssl.c,v 1.24 2010/05/19 20:57:10 gilles Exp $	*/
+/*	$OpenBSD: ssl.c,v 1.25 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2008 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -52,7 +52,7 @@ void	 ssl_connect(int, short, void *);
 
 SSL	*ssl_client_init(int, char *, size_t, char *, size_t);
 
-int	 ssl_buf_read(SSL *, struct buf_read *);
+int	 ssl_buf_read(SSL *, struct ibuf_read *);
 int	 ssl_buf_write(SSL *, struct msgbuf *);
 
 DH	*get_dh512(void);
@@ -151,8 +151,8 @@ ssl_read(int fd, short event, void *p)
 	int			 ssl_err;
 	short			 what;
 	size_t			 len;
-	char			 rbuf[READ_BUF_SIZE];
-	int			 howmuch = READ_BUF_SIZE;
+	char			 rbuf[IBUF_READ_SIZE];
+	int			 howmuch = IBUF_READ_SIZE;
 
 	what = EVBUFFER_READ;
 	ret = ssl_err = 0;
@@ -653,7 +653,7 @@ ssl_session_destroy(struct session *s)
 }
 
 int
-ssl_buf_read(SSL *s, struct buf_read *r)
+ssl_buf_read(SSL *s, struct ibuf_read *r)
 {
 	char	*buf = r->buf + r->wpos;
 	ssize_t	 bufsz = sizeof(r->buf) - r->wpos;
@@ -673,7 +673,7 @@ ssl_buf_read(SSL *s, struct buf_read *r)
 int
 ssl_buf_write(SSL *s, struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 	int		 ret;
 	
 	buf = TAILQ_FIRST(&msgbuf->bufs);
diff --git a/usr.sbin/snmpd/buffer.c b/usr.sbin/snmpd/buffer.c
index 214cc25109d..698827a348f 100644
--- a/usr.sbin/snmpd/buffer.c
+++ b/usr.sbin/snmpd/buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: buffer.c,v 1.9 2009/09/15 10:54:59 jacekm Exp $	*/
+/*	$OpenBSD: buffer.c,v 1.10 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -28,16 +28,16 @@
 
 #include "imsg.h"
 
-int	buf_realloc(struct buf *, size_t);
-void	buf_enqueue(struct msgbuf *, struct buf *);
-void	buf_dequeue(struct msgbuf *, struct buf *);
+int	ibuf_realloc(struct ibuf *, size_t);
+void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
-struct buf *
-buf_open(size_t len)
+struct ibuf *
+ibuf_open(size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
-	if ((buf = calloc(1, sizeof(struct buf))) == NULL)
+	if ((buf = calloc(1, sizeof(struct ibuf))) == NULL)
 		return (NULL);
 	if ((buf->buf = malloc(len)) == NULL) {
 		free(buf);
@@ -49,15 +49,15 @@ buf_open(size_t len)
 	return (buf);
 }
 
-struct buf *
-buf_dynamic(size_t len, size_t max)
+struct ibuf *
+ibuf_dynamic(size_t len, size_t max)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (max < len)
 		return (NULL);
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
 	if (max > 0)
@@ -67,7 +67,7 @@ buf_dynamic(size_t len, size_t max)
 }
 
 int
-buf_realloc(struct buf *buf, size_t len)
+ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
 
@@ -87,10 +87,10 @@ buf_realloc(struct buf *buf, size_t len)
 }
 
 int
-buf_add(struct buf *buf, const void *data, size_t len)
+ibuf_add(struct ibuf *buf, const void *data, size_t len)
 {
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (-1);
 
 	memcpy(buf->buf + buf->wpos, data, len);
@@ -99,12 +99,12 @@ buf_add(struct buf *buf, const void *data, size_t len)
 }
 
 void *
-buf_reserve(struct buf *buf, size_t len)
+ibuf_reserve(struct ibuf *buf, size_t len)
 {
 	void	*b;
 
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (NULL);
 
 	b = buf->buf + buf->wpos;
@@ -113,7 +113,7 @@ buf_reserve(struct buf *buf, size_t len)
 }
 
 void *
-buf_seek(struct buf *buf, size_t pos, size_t len)
+ibuf_seek(struct ibuf *buf, size_t pos, size_t len)
 {
 	/* only allowed to seek in already written parts */
 	if (pos + len > buf->wpos)
@@ -123,28 +123,28 @@ buf_seek(struct buf *buf, size_t pos, size_t len)
 }
 
 size_t
-buf_size(struct buf *buf)
+ibuf_size(struct ibuf *buf)
 {
 	return (buf->wpos);
 }
 
 size_t
-buf_left(struct buf *buf)
+ibuf_left(struct ibuf *buf)
 {
 	return (buf->max - buf->wpos);
 }
 
 void
-buf_close(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_close(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	buf_enqueue(msgbuf, buf);
+	ibuf_enqueue(msgbuf, buf);
 }
 
 int
-buf_write(struct msgbuf *msgbuf)
+ibuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t	n;
 
@@ -176,7 +176,7 @@ buf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_free(struct buf *buf)
+ibuf_free(struct ibuf *buf)
 {
 	free(buf->buf);
 	free(buf);
@@ -193,14 +193,14 @@ msgbuf_init(struct msgbuf *msgbuf)
 void
 msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 {
-	struct buf	*buf, *next;
+	struct ibuf	*buf, *next;
 
 	for (buf = TAILQ_FIRST(&msgbuf->bufs); buf != NULL && n > 0;
 	    buf = next) {
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
-			buf_dequeue(msgbuf, buf);
+			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
 			n = 0;
@@ -211,17 +211,17 @@ msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 void
 msgbuf_clear(struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
-		buf_dequeue(msgbuf, buf);
+		ibuf_dequeue(msgbuf, buf);
 }
 
 int
 msgbuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t		 n;
 	struct msghdr	 msg;
@@ -284,14 +284,14 @@ msgbuf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_enqueue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
 void
-buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 
@@ -299,5 +299,5 @@ buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
 		close(buf->fd);
 
 	msgbuf->queued--;
-	buf_free(buf);
+	ibuf_free(buf);
 }
diff --git a/usr.sbin/snmpd/imsg.c b/usr.sbin/snmpd/imsg.c
index 1d48703bfcc..97ca2c3c26a 100644
--- a/usr.sbin/snmpd/imsg.c
+++ b/usr.sbin/snmpd/imsg.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.12 2010/04/07 18:09:39 nicm Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.13 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -135,7 +135,7 @@ int
 imsg_compose(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, void *data, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf, type, peerid, pid, datalen)) == NULL)
 		return (-1);
@@ -154,7 +154,7 @@ int
 imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, const struct iovec *iov, int iovcnt)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	int		 i, datalen = 0;
 
 	for (i = 0; i < iovcnt; i++)
@@ -175,11 +175,11 @@ imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 /* ARGSUSED */
-struct buf *
+struct ibuf *
 imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	struct imsg_hdr	 hdr;
 
 	datalen += IMSG_HEADER_SIZE;
@@ -193,7 +193,7 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 	hdr.peerid = peerid;
 	if ((hdr.pid = pid) == 0)
 		hdr.pid = ibuf->pid;
-	if ((wbuf = buf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
+	if ((wbuf = ibuf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
 		return (NULL);
 	}
 	if (imsg_add(wbuf, &hdr, sizeof(hdr)) == -1)
@@ -203,18 +203,18 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 int
-imsg_add(struct buf *msg, void *data, u_int16_t datalen)
+imsg_add(struct ibuf *msg, void *data, u_int16_t datalen)
 {
 	if (datalen)
-		if (buf_add(msg, data, datalen) == -1) {
-			buf_free(msg);
+		if (ibuf_add(msg, data, datalen) == -1) {
+			ibuf_free(msg);
 			return (-1);
 		}
 	return (datalen);
 }
 
 void
-imsg_close(struct imsgbuf *ibuf, struct buf *msg)
+imsg_close(struct imsgbuf *ibuf, struct ibuf *msg)
 {
 	struct imsg_hdr	*hdr;
 
@@ -226,7 +226,7 @@ imsg_close(struct imsgbuf *ibuf, struct buf *msg)
 
 	hdr->len = (u_int16_t)msg->wpos;
 
-	buf_close(&ibuf->w, msg);
+	ibuf_close(&ibuf->w, msg);
 }
 
 void
diff --git a/usr.sbin/snmpd/imsg.h b/usr.sbin/snmpd/imsg.h
index 9fd3f2f4964..4e914c08e18 100644
--- a/usr.sbin/snmpd/imsg.h
+++ b/usr.sbin/snmpd/imsg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.h,v 1.5 2010/04/27 21:04:04 nicm Exp $	*/
+/*	$OpenBSD: imsg.h,v 1.6 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -18,12 +18,12 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define READ_BUF_SIZE		65535
+#define IBUF_READ_SIZE		65535
 #define IMSG_HEADER_SIZE	sizeof(struct imsg_hdr)
 #define MAX_IMSGSIZE		16384
 
-struct buf {
-	TAILQ_ENTRY(buf)	 entry;
+struct ibuf {
+	TAILQ_ENTRY(ibuf)	 entry;
 	u_char			*buf;
 	size_t			 size;
 	size_t			 max;
@@ -33,13 +33,13 @@ struct buf {
 };
 
 struct msgbuf {
-	TAILQ_HEAD(, buf)	 bufs;
+	TAILQ_HEAD(, ibuf)	 bufs;
 	u_int32_t		 queued;
 	int			 fd;
 };
 
-struct buf_read {
-	u_char			 buf[READ_BUF_SIZE];
+struct ibuf_read {
+	u_char			 buf[IBUF_READ_SIZE];
 	u_char			*rptr;
 	size_t			 wpos;
 };
@@ -51,7 +51,7 @@ struct imsg_fd {
 
 struct imsgbuf {
 	TAILQ_HEAD(, imsg_fd)	 fds;
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	int			 fd;
 	pid_t			 pid;
@@ -75,16 +75,16 @@ struct imsg {
 
 
 /* buffer.c */
-struct buf	*buf_open(size_t);
-struct buf	*buf_dynamic(size_t, size_t);
-int		 buf_add(struct buf *, const void *, size_t);
-void		*buf_reserve(struct buf *, size_t);
-void		*buf_seek(struct buf *, size_t, size_t);
-size_t		 buf_size(struct buf *);
-size_t		 buf_left(struct buf *);
-void		 buf_close(struct msgbuf *, struct buf *);
-int		 buf_write(struct msgbuf *);
-void		 buf_free(struct buf *);
+struct ibuf	*ibuf_open(size_t);
+struct ibuf	*ibuf_dynamic(size_t, size_t);
+int		 ibuf_add(struct ibuf *, const void *, size_t);
+void		*ibuf_reserve(struct ibuf *, size_t);
+void		*ibuf_seek(struct ibuf *, size_t, size_t);
+size_t		 ibuf_size(struct ibuf *);
+size_t		 ibuf_left(struct ibuf *);
+void		 ibuf_close(struct msgbuf *, struct ibuf *);
+int		 ibuf_write(struct msgbuf *);
+void		 ibuf_free(struct ibuf *);
 void		 msgbuf_init(struct msgbuf *);
 void		 msgbuf_clear(struct msgbuf *);
 int		 msgbuf_write(struct msgbuf *);
@@ -98,10 +98,10 @@ int	 imsg_compose(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 int	 imsg_composev(struct imsgbuf *, u_int32_t, u_int32_t,  pid_t,
 	    int, const struct iovec *, int);
-struct buf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
+struct ibuf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    u_int16_t);
-int	 imsg_add(struct buf *, void *, u_int16_t);
-void	 imsg_close(struct imsgbuf *, struct buf *);
+int	 imsg_add(struct ibuf *, void *, u_int16_t);
+void	 imsg_close(struct imsgbuf *, struct ibuf *);
 void	 imsg_free(struct imsg *);
 int	 imsg_flush(struct imsgbuf *);
 void	 imsg_clear(struct imsgbuf *);
diff --git a/usr.sbin/ypldap/buffer.c b/usr.sbin/ypldap/buffer.c
index 603a53d60ff..35abba95542 100644
--- a/usr.sbin/ypldap/buffer.c
+++ b/usr.sbin/ypldap/buffer.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: buffer.c,v 1.4 2009/09/15 10:54:59 jacekm Exp $	*/
+/*	$OpenBSD: buffer.c,v 1.5 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -28,16 +28,16 @@
 
 #include "imsg.h"
 
-int	buf_realloc(struct buf *, size_t);
-void	buf_enqueue(struct msgbuf *, struct buf *);
-void	buf_dequeue(struct msgbuf *, struct buf *);
+int	ibuf_realloc(struct ibuf *, size_t);
+void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
-struct buf *
-buf_open(size_t len)
+struct ibuf *
+ibuf_open(size_t len)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
-	if ((buf = calloc(1, sizeof(struct buf))) == NULL)
+	if ((buf = calloc(1, sizeof(struct ibuf))) == NULL)
 		return (NULL);
 	if ((buf->buf = malloc(len)) == NULL) {
 		free(buf);
@@ -49,15 +49,15 @@ buf_open(size_t len)
 	return (buf);
 }
 
-struct buf *
-buf_dynamic(size_t len, size_t max)
+struct ibuf *
+ibuf_dynamic(size_t len, size_t max)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	if (max < len)
 		return (NULL);
 
-	if ((buf = buf_open(len)) == NULL)
+	if ((buf = ibuf_open(len)) == NULL)
 		return (NULL);
 
 	if (max > 0)
@@ -67,7 +67,7 @@ buf_dynamic(size_t len, size_t max)
 }
 
 int
-buf_realloc(struct buf *buf, size_t len)
+ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
 
@@ -87,10 +87,10 @@ buf_realloc(struct buf *buf, size_t len)
 }
 
 int
-buf_add(struct buf *buf, const void *data, size_t len)
+ibuf_add(struct ibuf *buf, const void *data, size_t len)
 {
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (-1);
 
 	memcpy(buf->buf + buf->wpos, data, len);
@@ -99,12 +99,12 @@ buf_add(struct buf *buf, const void *data, size_t len)
 }
 
 void *
-buf_reserve(struct buf *buf, size_t len)
+ibuf_reserve(struct ibuf *buf, size_t len)
 {
 	void	*b;
 
 	if (buf->wpos + len > buf->size)
-		if (buf_realloc(buf, len) == -1)
+		if (ibuf_realloc(buf, len) == -1)
 			return (NULL);
 
 	b = buf->buf + buf->wpos;
@@ -113,7 +113,7 @@ buf_reserve(struct buf *buf, size_t len)
 }
 
 void *
-buf_seek(struct buf *buf, size_t pos, size_t len)
+ibuf_seek(struct ibuf *buf, size_t pos, size_t len)
 {
 	/* only allowed to seek in already written parts */
 	if (pos + len > buf->wpos)
@@ -123,28 +123,28 @@ buf_seek(struct buf *buf, size_t pos, size_t len)
 }
 
 size_t
-buf_size(struct buf *buf)
+ibuf_size(struct ibuf *buf)
 {
 	return (buf->wpos);
 }
 
 size_t
-buf_left(struct buf *buf)
+ibuf_left(struct ibuf *buf)
 {
 	return (buf->max - buf->wpos);
 }
 
 void
-buf_close(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_close(struct msgbuf *msgbuf, struct ibuf *buf)
 {
-	buf_enqueue(msgbuf, buf);
+	ibuf_enqueue(msgbuf, buf);
 }
 
 int
-buf_write(struct msgbuf *msgbuf)
+ibuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t	n;
 
@@ -176,7 +176,7 @@ buf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_free(struct buf *buf)
+ibuf_free(struct ibuf *buf)
 {
 	free(buf->buf);
 	free(buf);
@@ -193,14 +193,14 @@ msgbuf_init(struct msgbuf *msgbuf)
 void
 msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 {
-	struct buf	*buf, *next;
+	struct ibuf	*buf, *next;
 
 	for (buf = TAILQ_FIRST(&msgbuf->bufs); buf != NULL && n > 0;
 	    buf = next) {
 		next = TAILQ_NEXT(buf, entry);
 		if (buf->rpos + n >= buf->wpos) {
 			n -= buf->wpos - buf->rpos;
-			buf_dequeue(msgbuf, buf);
+			ibuf_dequeue(msgbuf, buf);
 		} else {
 			buf->rpos += n;
 			n = 0;
@@ -211,17 +211,17 @@ msgbuf_drain(struct msgbuf *msgbuf, size_t n)
 void
 msgbuf_clear(struct msgbuf *msgbuf)
 {
-	struct buf	*buf;
+	struct ibuf	*buf;
 
 	while ((buf = TAILQ_FIRST(&msgbuf->bufs)) != NULL)
-		buf_dequeue(msgbuf, buf);
+		ibuf_dequeue(msgbuf, buf);
 }
 
 int
 msgbuf_write(struct msgbuf *msgbuf)
 {
 	struct iovec	 iov[IOV_MAX];
-	struct buf	*buf;
+	struct ibuf	*buf;
 	unsigned int	 i = 0;
 	ssize_t		 n;
 	struct msghdr	 msg;
@@ -284,14 +284,14 @@ msgbuf_write(struct msgbuf *msgbuf)
 }
 
 void
-buf_enqueue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
 void
-buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
+ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);
 
@@ -299,5 +299,5 @@ buf_dequeue(struct msgbuf *msgbuf, struct buf *buf)
 		close(buf->fd);
 
 	msgbuf->queued--;
-	buf_free(buf);
+	ibuf_free(buf);
 }
diff --git a/usr.sbin/ypldap/imsg.c b/usr.sbin/ypldap/imsg.c
index 21d54c0d05e..285e69221c1 100644
--- a/usr.sbin/ypldap/imsg.c
+++ b/usr.sbin/ypldap/imsg.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.10 2010/04/07 18:09:39 nicm Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.11 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -135,7 +135,7 @@ int
 imsg_compose(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, void *data, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 
 	if ((wbuf = imsg_create(ibuf, type, peerid, pid, datalen)) == NULL)
 		return (-1);
@@ -154,7 +154,7 @@ int
 imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, int fd, const struct iovec *iov, int iovcnt)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	int		 i, datalen = 0;
 
 	for (i = 0; i < iovcnt; i++)
@@ -175,11 +175,11 @@ imsg_composev(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 /* ARGSUSED */
-struct buf *
+struct ibuf *
 imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
     pid_t pid, u_int16_t datalen)
 {
-	struct buf	*wbuf;
+	struct ibuf	*wbuf;
 	struct imsg_hdr	 hdr;
 
 	datalen += IMSG_HEADER_SIZE;
@@ -193,7 +193,7 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 	hdr.peerid = peerid;
 	if ((hdr.pid = pid) == 0)
 		hdr.pid = ibuf->pid;
-	if ((wbuf = buf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
+	if ((wbuf = ibuf_dynamic(datalen, MAX_IMSGSIZE)) == NULL) {
 		return (NULL);
 	}
 	if (imsg_add(wbuf, &hdr, sizeof(hdr)) == -1)
@@ -203,18 +203,18 @@ imsg_create(struct imsgbuf *ibuf, u_int32_t type, u_int32_t peerid,
 }
 
 int
-imsg_add(struct buf *msg, void *data, u_int16_t datalen)
+imsg_add(struct ibuf *msg, void *data, u_int16_t datalen)
 {
 	if (datalen)
-		if (buf_add(msg, data, datalen) == -1) {
-			buf_free(msg);
+		if (ibuf_add(msg, data, datalen) == -1) {
+			ibuf_free(msg);
 			return (-1);
 		}
 	return (datalen);
 }
 
 void
-imsg_close(struct imsgbuf *ibuf, struct buf *msg)
+imsg_close(struct imsgbuf *ibuf, struct ibuf *msg)
 {
 	struct imsg_hdr	*hdr;
 
@@ -226,7 +226,7 @@ imsg_close(struct imsgbuf *ibuf, struct buf *msg)
 
 	hdr->len = (u_int16_t)msg->wpos;
 
-	buf_close(&ibuf->w, msg);
+	ibuf_close(&ibuf->w, msg);
 }
 
 void
diff --git a/usr.sbin/ypldap/imsg.h b/usr.sbin/ypldap/imsg.h
index 9fd3f2f4964..4e914c08e18 100644
--- a/usr.sbin/ypldap/imsg.h
+++ b/usr.sbin/ypldap/imsg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.h,v 1.5 2010/04/27 21:04:04 nicm Exp $	*/
+/*	$OpenBSD: imsg.h,v 1.6 2010/05/26 13:56:08 nicm Exp $	*/
 
 /*
  * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org>
@@ -18,12 +18,12 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define READ_BUF_SIZE		65535
+#define IBUF_READ_SIZE		65535
 #define IMSG_HEADER_SIZE	sizeof(struct imsg_hdr)
 #define MAX_IMSGSIZE		16384
 
-struct buf {
-	TAILQ_ENTRY(buf)	 entry;
+struct ibuf {
+	TAILQ_ENTRY(ibuf)	 entry;
 	u_char			*buf;
 	size_t			 size;
 	size_t			 max;
@@ -33,13 +33,13 @@ struct buf {
 };
 
 struct msgbuf {
-	TAILQ_HEAD(, buf)	 bufs;
+	TAILQ_HEAD(, ibuf)	 bufs;
 	u_int32_t		 queued;
 	int			 fd;
 };
 
-struct buf_read {
-	u_char			 buf[READ_BUF_SIZE];
+struct ibuf_read {
+	u_char			 buf[IBUF_READ_SIZE];
 	u_char			*rptr;
 	size_t			 wpos;
 };
@@ -51,7 +51,7 @@ struct imsg_fd {
 
 struct imsgbuf {
 	TAILQ_HEAD(, imsg_fd)	 fds;
-	struct buf_read		 r;
+	struct ibuf_read	 r;
 	struct msgbuf		 w;
 	int			 fd;
 	pid_t			 pid;
@@ -75,16 +75,16 @@ struct imsg {
 
 
 /* buffer.c */
-struct buf	*buf_open(size_t);
-struct buf	*buf_dynamic(size_t, size_t);
-int		 buf_add(struct buf *, const void *, size_t);
-void		*buf_reserve(struct buf *, size_t);
-void		*buf_seek(struct buf *, size_t, size_t);
-size_t		 buf_size(struct buf *);
-size_t		 buf_left(struct buf *);
-void		 buf_close(struct msgbuf *, struct buf *);
-int		 buf_write(struct msgbuf *);
-void		 buf_free(struct buf *);
+struct ibuf	*ibuf_open(size_t);
+struct ibuf	*ibuf_dynamic(size_t, size_t);
+int		 ibuf_add(struct ibuf *, const void *, size_t);
+void		*ibuf_reserve(struct ibuf *, size_t);
+void		*ibuf_seek(struct ibuf *, size_t, size_t);
+size_t		 ibuf_size(struct ibuf *);
+size_t		 ibuf_left(struct ibuf *);
+void		 ibuf_close(struct msgbuf *, struct ibuf *);
+int		 ibuf_write(struct msgbuf *);
+void		 ibuf_free(struct ibuf *);
 void		 msgbuf_init(struct msgbuf *);
 void		 msgbuf_clear(struct msgbuf *);
 int		 msgbuf_write(struct msgbuf *);
@@ -98,10 +98,10 @@ int	 imsg_compose(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    int, void *, u_int16_t);
 int	 imsg_composev(struct imsgbuf *, u_int32_t, u_int32_t,  pid_t,
 	    int, const struct iovec *, int);
-struct buf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
+struct ibuf *imsg_create(struct imsgbuf *, u_int32_t, u_int32_t, pid_t,
 	    u_int16_t);
-int	 imsg_add(struct buf *, void *, u_int16_t);
-void	 imsg_close(struct imsgbuf *, struct buf *);
+int	 imsg_add(struct ibuf *, void *, u_int16_t);
+void	 imsg_close(struct imsgbuf *, struct ibuf *);
 void	 imsg_free(struct imsg *);
 int	 imsg_flush(struct imsgbuf *);
 void	 imsg_clear(struct imsgbuf *);
diff --git a/usr.sbin/ypldap/ypldap_dns.c b/usr.sbin/ypldap/ypldap_dns.c
index 4b03e78e9f0..105160de89c 100644
--- a/usr.sbin/ypldap/ypldap_dns.c
+++ b/usr.sbin/ypldap/ypldap_dns.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ypldap_dns.c,v 1.3 2010/04/01 18:24:04 zinovik Exp $ */
+/*	$OpenBSD: ypldap_dns.c,v 1.4 2010/05/26 13:56:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2003-2008 Henning Brauer <henning@openbsd.org>
@@ -128,7 +128,7 @@ dns_dispatch_imsg(int fd, short event, void *p)
 	int			 n, cnt;
 	char			*name;
 	struct ypldap_addr	*h, *hn;
-	struct buf		*buf;
+	struct ibuf		*buf;
 	struct env		*env = p;
 	struct imsgev		*iev = env->sc_iev;
 	struct imsgbuf		*ibuf = &iev->ibuf;