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

diff --git a/plugins/netutils.c b/plugins/netutils.c
index c99983f03bd9e68a2cbeb348efce2d0b0a1ed1e3..aee53d35e70b2aca97f924e707d2eb2a3b07c6d0 100644 (file)
--- 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)