don't segfault on bindto == NULL

diff --git a/main/network.c b/main/network.c
index 873b464edd90cba133c3e90c171d087d249f987f..476f930db3c8cb2e7b2fb6d9d0345d8a6a46c9a2 100644 (file)
--- a/main/network.c
+++ b/main/network.c
@@ -792,7 +792,7 @@ php_socket_t php_network_connect_socket_to_host(const char *host, unsigned short
                switch (sa->sa_family) {
 #if HAVE_GETADDRINFO && HAVE_IPV6
                        case AF_INET6:
-                               if (strstr(bindto, ':')) {
+                               if (bindto && strstr(bindto, ':')) {
                                        ((struct sockaddr_in6 *)sa)->sin6_family = sa->sa_family;
                                        ((struct sockaddr_in6 *)sa)->sin6_port = htons(port);
                                        socklen = sizeof(struct sockaddr_in6);