misc/112705: SCTP related symbols aren't exported

Kouhei Sutou kou at cozmixng.org
Wed May 16 08:10:05 UTC 2007


>Number:         112705
>Category:       misc
>Synopsis:       SCTP related symbols aren't exported
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed May 16 08:10:05 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Kouhei Sutou
>Release:        7.0-CURRENT at 2007/05/16
>Organization:
Japan
>Environment:
FreeBSD letsd.clear-code.com 7.0-CURRENT FreeBSD 7.0-CURRENT #0: Wed May 16 15:10:34 JST 2007     root at letsd.clear-code.com:/usr/obj/usr/src/sys/SCTP  i386

>Description:
SCTP related function man pages (e.g. sctp_bindx(3)) say that you need to link libc to use SCTP function. But /lib/libc.so.7 doesn't include sctp_* symbols:

  % strings /lib/libc.so.7 | grep sctp
  % # no output

So I can't use sctp_* functions on FreeBSD.
libc.so should export sctp_* symbols like man pages say.

>How-To-Repeat:
sctp-test.c:
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/sctp.h>

int
main(int argc, char **argv)
{
  sctp_bindx(0, 0, 0, 0);
  return 0;
}

I can't build sctp-test.c:

  % cc sctp-test.c
  /var/tmp//cctHYOM8.o(.text+0x25): In function `main':
  : undefined reference to `sctp_bindx'


>Fix:
Add sctp_* related functions to src/lib/libc/net/Symbols.map like the attached patch.

Patch attached with submission follows:

--- lib/libc/net/Symbol.map.orig	Wed May 16 16:42:45 2007
+++ lib/libc/net/Symbol.map	Wed May 16 16:40:48 2007
@@ -124,6 +124,20 @@
 	in6addr_loopback;
 	in6addr_nodelocal_allnodes;
 	in6addr_linklocal_allnodes;
+	sctp_getaddrlen;
+	sctp_bindx;
+	sctp_connectx;
+	sctp_peeloff;
+	sctp_opt_info;
+	sctp_getpaddrs;
+	sctp_freepaddrs;
+	sctp_getladdrs;
+	sctp_freeladdrs;
+	sctp_sendmsg;
+	sctp_sendmsgx;
+	sctp_send;
+	sctp_sendx;
+	sctp_recvmsg;
 };
 
 FBSDprivate_1.0 {

>Release-Note:
>Audit-Trail:
>Unformatted:


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