1 files changed, 6 insertions, 3 deletions
diff --git a/main/safe_mode.c b/main/safe_mode.c
index 9271610f9b..12403077d4 100644
--- a/main/safe_mode.c
+++ b/main/safe_mode.c
@@ -55,13 +55,16 @@ PHPAPI int php_checkuid_ex(const char *filename, char *fopen_mode, int mode, int
 	php_stream_wrapper *wrapper = NULL;
 	TSRMLS_FETCH();
 
-	strlcpy(filenamecopy, filename, MAXPATHLEN);
-	filename=(char *)&filenamecopy;
-
 	if (!filename) {
 		return 0; /* path must be provided */
 	}
 
+	if (strlcpy(filenamecopy, filename, MAXPATHLEN)>=MAXPATHLEN) {
+		return 0;
+	}
+	filename=(char *)&filenamecopy;
+
+
 	if (fopen_mode) {
 		if (fopen_mode[0] == 'r') {
 			mode = CHECKUID_DISALLOW_FILE_NOT_EXISTS;