Fix uninitialized memory in network.c

See #14806 (comment)
and #14806 (comment)

Closes GH-15068.

Author: nielsdos

NEWS

@@ -8,6 +8,7 @@ PHP                                                                        NEWS
   . Fixed bug GH-15023 (Memory leak in Zend/zend_ini.c). (nielsdos)
   . Fixed bug GH-13330 (Append -Wno-implicit-fallthrough flag conditionally).
     (Peter Kokot)
+  . Fix uninitialized memory in network.c. (nielsdos)
 
 - Curl:
   . Fixed case when curl_error returns an empty string.

main/network.c

@@ -861,7 +861,7 @@ php_socket_t php_network_connect_socket_to_host(const char *host, unsigned short
 #if HAVE_IPV6 && HAVE_INET_PTON
 				struct sockaddr_in6 in6;
 #endif
-			} local_address;
+			} local_address = {0};
 			int local_address_len = 0;
 
 			if (sa->sa_family == AF_INET) {
@@ -873,7 +873,6 @@ php_socket_t php_network_connect_socket_to_host(const char *host, unsigned short
 					local_address_len = sizeof(struct sockaddr_in);
 					local_address.in4.sin_family = sa->sa_family;
 					local_address.in4.sin_port = htons(bindport);
-					memset(&(local_address.in4.sin_zero), 0, sizeof(local_address.in4.sin_zero));
 				}
 			}
 #if HAVE_IPV6 && HAVE_INET_PTON