From d5858b9acb103e69d53a9e73d89304a7c3f5d09a Mon Sep 17 00:00:00 2001
From: jcid <devnull@localhost>
Date: Sat, 15 Mar 2008 18:45:21 +0100
Subject: - Added a warning message for false GIF files.

---
 src/gif.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

(limited to 'src')

diff --git a/src/gif.c b/src/gif.c
index 871a13d9..67560a5c 100644
--- a/src/gif.c
+++ b/src/gif.c
@@ -762,12 +762,9 @@ static int Gif_check_sig(DilloGif *gif, const uchar_t *ibuf, int ibsize)
    /* at beginning of file - read magic number */
    if (ibsize < 6)
       return 0;
-   if (memcmp(ibuf, "GIF", 3) != 0) {
-      gif->state = 999;
-      return 6;
-   }
-   if (memcmp(ibuf + 3, "87a", 3) != 0 &&
-       memcmp(ibuf + 3, "89a", 3) != 0) {
+   if (memcmp(ibuf, "GIF87a", 6) != 0 &&
+       memcmp(ibuf, "GIF89a", 6) != 0) {
+      MSG_WARN("\"%s\" is not a GIF file.\n", URL_STR(gif->url));
       gif->state = 999;
       return 6;
    }
-- 
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