From 4e7bec8ac9118e24af45ea792021d00f060f06ca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jesu=CC=81s=20A=2E=20A=CC=81lvarez?= <zydeco@namedfork.net>
Date: Sun, 17 Apr 2016 14:16:17 +0200
Subject: [PATCH] res_open_mem: return NULL if given a NULL buffer

---
 res.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/res.c b/res.c
index e347bd1..9e1cf8c 100644
--- a/res.c
+++ b/res.c
@@ -53,6 +53,7 @@ RFILE* res_open (const char *path, int mode) {
 }
 
 RFILE* res_open_mem (void *buf, size_t size, int copy) {
+    if (buf == NULL) return NULL;
     RFILE* rp = malloc(sizeof(RFILE));
     if (rp == NULL) efail(ENOMEM);
     bzero(rp, sizeof(RFILE));