diff options
| author | Claudio Jeker <claudio@cvs.openbsd.org> | 2009-03-19 06:53:00 +0000 |
|---|---|---|
| committer | Claudio Jeker <claudio@cvs.openbsd.org> | 2009-03-19 06:53:00 +0000 |
| commit | 7ce2d296a96fe58889baaa6681aa25aa393cc95d (patch) | |
| tree | 56650dd95fd51937e1f978ffdd3253f46f93f701 /usr.sbin/bgpd/rde_attr.c | |
| parent | 1e556e2cedf7bec67ef80f0ce0def52fc6e088e4 (diff) | |
Implement a attr_writebuf() function that works on a struct buf instead of
a pre allocated piece of memory. Will be used by newer mrt code.
OK henning@
Diffstat (limited to 'usr.sbin/bgpd/rde_attr.c')
| -rw-r--r-- | usr.sbin/bgpd/rde_attr.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/usr.sbin/bgpd/rde_attr.c b/usr.sbin/bgpd/rde_attr.c index 19bbce3126f..7b4591f179f 100644 --- a/usr.sbin/bgpd/rde_attr.c +++ b/usr.sbin/bgpd/rde_attr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rde_attr.c,v 1.78 2009/02/17 14:10:48 claudio Exp $ */ +/* $OpenBSD: rde_attr.c,v 1.79 2009/03/19 06:52:59 claudio Exp $ */ /* * Copyright (c) 2004 Claudio Jeker <claudio@openbsd.org> @@ -62,6 +62,31 @@ attr_write(void *p, u_int16_t p_len, u_int8_t flags, u_int8_t type, return (tot_len); } +int +attr_writebuf(struct buf *buf, u_int8_t flags, u_int8_t type, void *data, + u_int16_t data_len) +{ + u_char hdr[4]; + + if (data_len > 255) { + flags |= ATTR_EXTLEN; + hdr[2] = (data_len >> 8) & 0xff; + hdr[3] = data_len & 0xff; + } else { + flags &= ~ATTR_EXTLEN; + hdr[2] = data_len & 0xff; + } + + hdr[0] = flags; + hdr[1] = type; + + if (buf_add(buf, hdr, flags & ATTR_EXTLEN ? 4 : 3) == -1) + return (-1); + if (buf_add(buf, data, data_len) == -1) + return (-1); + return (0); +} + /* optional attribute specific functions */ int attr_diff(struct attr *, struct attr *); struct attr *attr_alloc(u_int8_t, u_int8_t, const void *, u_int16_t); |