From ccdde15943d2c842c7d027180ae2502eb17ab557 Mon Sep 17 00:00:00 2001
From: Ilija Tovilo <ilija.tovilo@me.com>
Date: Sun, 22 May 2022 19:16:52 +0200
Subject: [PATCH] Fix undefined behavior in php_set_inet6_addr

Postfix `++` on `NULL` is undefined behavior
---
 ext/sockets/sockaddr_conv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ext/sockets/sockaddr_conv.c b/ext/sockets/sockaddr_conv.c
index 57996612d2d7..14a7108fef94 100644
--- a/ext/sockets/sockaddr_conv.c
+++ b/ext/sockets/sockaddr_conv.c
@@ -60,7 +60,8 @@ int php_set_inet6_addr(struct sockaddr_in6 *sin6, char *string, php_socket *php_
 
 	}
 
-	if (scope++) {
+	if (scope) {
+		scope++;
 		zend_long lval = 0;
 		double dval = 0;
 		unsigned scope_id = 0;