From: Rasmus Lerdorf <rasmus@php.net>
Date: Sun, 28 Nov 1999 16:35:26 +0000 (+0000)
Subject: # check link() as well
X-Git-Tag: PRE_RETURN_REF_PATCH~190
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7cefad61ede71f567de3132b9788d4b763d7b51b;p=php

# check link() as well
---

diff --git a/ext/standard/link.c b/ext/standard/link.c
index 077d63c524..9ccf0ecdda 100644
--- a/ext/standard/link.c
+++ b/ext/standard/link.c
@@ -149,6 +149,10 @@ PHP_FUNCTION(link)
 	if (PG(safe_mode) && !_php3_checkuid((*topath)->value.str.val, 2)) {
 		RETURN_FALSE;
 	}
+	if (!strncasecmp((*topath)->value.str.val,"http://",7) || !strncasecmp((*topath)->value.str.val,"ftp://",6)) {
+		php_error(E_WARNING, "Unable to link to a URL");
+		RETURN_FALSE;
+	}
 
 	ret = link((*topath)->value.str.val, (*frompath)->value.str.val);
 	if (ret == -1) {