1075725: patch to my_connect() to deal with SEGV if connect fails

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@960 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 4 insertions, 3 deletions

diff --git a/plugins/netutils.c b/plugins/netutils.c
index c99983f0..aee53d35 100644
--- a/plugins/netutils.c
+++ b/plugins/netutils.c
@@ -213,7 +213,7 @@ static int
 my_connect (const char *host_name, int port, int *sd, int proto)
 {
         struct addrinfo hints;
-        struct addrinfo *res;
+        struct addrinfo *res, *res0;
         char port_str[6];
         int result;
 
@@ -223,13 +223,14 @@ my_connect (const char *host_name, int port, int *sd, int proto)
         hints.ai_socktype = (proto == IPPROTO_UDP) ? SOCK_DGRAM : SOCK_STREAM;
 
         snprintf (port_str, sizeof (port_str), "%d", port);
-        result = getaddrinfo (host_name, port_str, &hints, &res);
+        result = getaddrinfo (host_name, port_str, &hints, &res0);
 
         if (result != 0) {
                 printf ("%s\n", gai_strerror (result));
                 return STATE_UNKNOWN;
         }
         else {
+                res = res0;
                 while (res) {
                         /* attempt to create a socket */
                         *sd = socket (res->ai_family, (proto == IPPROTO_UDP) ?
@@ -260,7 +261,7 @@ my_connect (const char *host_name, int port, int *sd, int proto)
                         close (*sd);
                         res = res->ai_next;
                 }
-                freeaddrinfo (res);
+                freeaddrinfo (res0);
         }
 
         if (result == 0)