diff options
| -rw-r--r-- | lib/libc/rpc/bindresvport.c | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/lib/libc/rpc/bindresvport.c b/lib/libc/rpc/bindresvport.c index 48a87f88bae..8e5e9b55c30 100644 --- a/lib/libc/rpc/bindresvport.c +++ b/lib/libc/rpc/bindresvport.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bindresvport.c,v 1.4 1996/07/29 06:51:25 downsj Exp $ */ +/* $OpenBSD: bindresvport.c,v 1.5 1996/07/30 10:52:49 deraadt Exp $ */ /* $NetBSD: bindresvport.c,v 1.5 1995/06/03 22:37:19 mycroft Exp $ */ /* @@ -33,7 +33,7 @@ #if defined(LIBC_SCCS) && !defined(lint) /*static char *sccsid = "from: @(#)bindresvport.c 1.8 88/02/08 SMI";*/ /*static char *sccsid = "from: @(#)bindresvport.c 2.2 88/07/29 4.0 RPCSRC";*/ -static char *rcsid = "$OpenBSD: bindresvport.c,v 1.4 1996/07/29 06:51:25 downsj Exp $"; +static char *rcsid = "$OpenBSD: bindresvport.c,v 1.5 1996/07/30 10:52:49 deraadt Exp $"; #endif /* @@ -58,11 +58,12 @@ bindresvport(sd, sin) { int on, old, error; struct sockaddr_in myaddr; + int sinlen = sizeof(struct sockaddr_in); if (sin == (struct sockaddr_in *)0) { sin = &myaddr; - memset(sin, 0, sizeof (*sin)); - sin->sin_len = sizeof(struct sockaddr_in); + memset(sin, 0, sizeof(*sin)); + sin->sin_len = sizeof(*sin); sin->sin_family = AF_INET; } else if (sin->sin_family != AF_INET) { errno = EPFNOSUPPORT; @@ -83,14 +84,25 @@ bindresvport(sd, sin) return(error); } - error = bind(sd, (struct sockaddr *)sin, sizeof(struct sockaddr_in)); - if (error < 0) { - /* Don't change error or errno. */ + error = bind(sd, (struct sockaddr *)sin, sizeof(*sin)); + + if (sin.sin_port == 0) { int saved_errno = errno; - if (setsockopt(sd, IPPROTO_IP, IP_PORTRANGE, - &old, sizeof(old)) < 0) - errno = saved_errno; + if (error) { + if (setsockopt(sd, IPPROTO_IP, IP_PORTRANGE, + &old, sizeof(old)) < 0) + errno = saved_errno; + return (error); + } + + if (sin != &myaddr) { + /* Hmm, what did the kernel assign... */ + if (getsockname(sd, (struct sockaddr *)sin, + sizeof(*sin)) < 0) + saved_errno = errno; + return (error); + } } - return(error); + return (error); } |