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From: Hiroki Sato <hrs@FreeBSD.org>
Date: Tue, 9 Jul 2013 07:08:36 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r253058 - head/usr.sbin/rtadvd
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Author: hrs
Date: Tue Jul  9 07:08:36 2013
New Revision: 253058
URL: http://svnweb.freebsd.org/changeset/base/253058

Log:
  - Add missing "static" keywords.
  - Add a check for ifindex to if_indextoifinfo().  It returns NULL when
    if_indextoname() fails.
  
  MFC after:	3 days

Modified:
  head/usr.sbin/rtadvd/rtadvd.c

Modified: head/usr.sbin/rtadvd/rtadvd.c
==============================================================================
--- head/usr.sbin/rtadvd/rtadvd.c	Tue Jul  9 07:03:54 2013	(r253057)
+++ head/usr.sbin/rtadvd/rtadvd.c	Tue Jul  9 07:08:36 2013	(r253058)
@@ -95,7 +95,7 @@ struct sockaddr_in6 rcvfrom;
 static const char *pidfilename = _PATH_RTADVDPID;
 const char *conffile = _PATH_RTADVDCONF;
 static struct pidfh *pfh;
-int dflag = 0, sflag = 0;
+static int dflag, sflag;
 static int wait_shutdown;
 
 #define	PFD_RAWSOCK	0
@@ -139,7 +139,7 @@ union nd_opt {
 #define NDOPT_FLAG_RDNSS	(1 << 5)
 #define NDOPT_FLAG_DNSSL	(1 << 6)
 
-uint32_t ndopt_flags[] = {
+static uint32_t ndopt_flags[] = {
 	[ND_OPT_SOURCE_LINKADDR]	= NDOPT_FLAG_SRCLINKADDR,
 	[ND_OPT_TARGET_LINKADDR]	= NDOPT_FLAG_TGTLINKADDR,
 	[ND_OPT_PREFIX_INFORMATION]	= NDOPT_FLAG_PREFIXINFO,
@@ -1637,6 +1637,11 @@ struct ifinfo *
 if_indextoifinfo(int idx)
 {
 	struct ifinfo *ifi;
+	char *name, name0[IFNAMSIZ];
+
+	/* Check if the interface has a valid name or not. */
+	if (if_indextoname(idx, name0) == NULL)
+		return (NULL);
 
 	TAILQ_FOREACH(ifi, &ifilist, ifi_next) {
 		if (ifi->ifi_ifindex == idx)