Restore q_strcasestr behavior with empty needle string

This fixes occasional asserts in Con_AddToTabList after 22f4422
andrei-drexler · Dec 22, 2023 · 20119ca · 20119ca
1 parent 22f4422
commit 20119ca
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Quake/common.c b/Quake/common.c
@@ -308,6 +308,9 @@ char *q_strcasestr(const char *haystack, const char *needle)
 {
 	const size_t len = strlen(needle);
 
+	if (!len)
+		return (char *)haystack;
+
 	while (*haystack)
 	{
 		if (!q_strncasecmp(haystack, needle, len))