svn commit: r238994 - stable/9/lib/libc/net

[Maksim Yevmenkin]

Author: emax
Date: Thu Aug  2 20:48:22 2012
New Revision: 238994
URL: http://svn.freebsd.org/changeset/base/238994

Log:
  MFC r238599
  
  Return zero from get_addrselectpolicy() when no source-address-selection
  policy is installed.
  
  Approved by:	re (kib)

Modified:
  stable/9/lib/libc/net/getaddrinfo.c
Directory Properties:
  stable/9/lib/libc/   (props changed)

Modified: stable/9/lib/libc/net/getaddrinfo.c
==============================================================================
--- stable/9/lib/libc/net/getaddrinfo.c	Thu Aug  2 20:14:45 2012	(r238993)
+++ stable/9/lib/libc/net/getaddrinfo.c	Thu Aug  2 20:48:22 2012	(r238994)
@@ -693,6 +693,8 @@ get_addrselectpolicy(struct policyhead *
 
 	if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &l, NULL, 0) < 0)
 		return (0);
+	if (l == 0)
+		return (0);
 	if ((buf = malloc(l)) == NULL)
 		return (0);
 	if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &l, NULL, 0) < 0) {