svn commit: r234329 - head/lib/libc/net

[Eitan Adler]

Author: eadler
Date: Sun Apr 15 23:56:03 2012
New Revision: 234329
URL: http://svn.freebsd.org/changeset/base/234329

Log:
  When searching for uninitialized memory usage add ensure that the entire
  struct is set to zero.
  
  PR:		bin/166483
  Submitted by:	Roy Marples <roy at marples.name>
  Reviewed by:	delphij
  Approved by:	cperciva
  MFC after:	3 days

Modified:
  head/lib/libc/net/if_nametoindex.c

Modified: head/lib/libc/net/if_nametoindex.c
==============================================================================
--- head/lib/libc/net/if_nametoindex.c	Sun Apr 15 23:50:13 2012	(r234328)
+++ head/lib/libc/net/if_nametoindex.c	Sun Apr 15 23:56:03 2012	(r234329)
@@ -70,6 +70,9 @@ if_nametoindex(const char *ifname)
 
 	s = _socket(AF_INET, SOCK_DGRAM, 0);
 	if (s != -1) {
+#ifdef PURIFY
+		memset(&ifr, 0, sizeof(ifr));
+#endif
 		strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
 		if (_ioctl(s, SIOCGIFINDEX, &ifr) != -1) {
 			_close(s);