From e9a8f3c6446af1b5834e66c76fa3b2e7a526ae84 Mon Sep 17 00:00:00 2001
From: Daniel Veillard <veillard@redhat.com>
Date: Tue, 10 Aug 2010 15:00:15 +0200
Subject: [PATCH] Extend virSocketParseAddr() to allow a NULL result pointer

That way it can be used to verify a numeric address without storing
the details
* src/util/network.c: change virSocketParseAddr to allow a null @addr
  parameter
---
 src/util/network.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/util/network.c b/src/util/network.c
index 6e24792ff1..b17d419630 100644
--- a/src/util/network.c
+++ b/src/util/network.c
@@ -56,7 +56,7 @@ static int getIPv6Addr(virSocketAddrPtr addr, virIPv6AddrPtr tab) {
 /**
  * virSocketParseAddr:
  * @val: a numeric network address IPv4 or IPv6
- * @addr: where to store the return value.
+ * @addr: where to store the return value, optional.
  * @hint: optional hint to pass down to getaddrinfo
  *
  * Mostly a wrapper for getaddrinfo() extracting the address storage
@@ -70,7 +70,7 @@ virSocketParseAddr(const char *val, virSocketAddrPtr addr, int hint) {
     struct addrinfo hints;
     struct addrinfo *res = NULL;
 
-    if ((val == NULL) || (addr == NULL))
+    if (val == NULL)
         return(-1);
 
     memset(&hints, 0, sizeof(hints));
@@ -80,7 +80,8 @@ virSocketParseAddr(const char *val, virSocketAddrPtr addr, int hint) {
     }
 
     len = res->ai_addrlen;
-    memcpy(&addr->stor, res->ai_addr, len);
+    if (addr != NULL)
+        memcpy(&addr->stor, res->ai_addr, len);
 
     freeaddrinfo(res);
     return(len);