# HG changeset patch
# User Igor Sysoev <igor@sysoev.ru>
# Date 1244186987 0
# Node ID 0070504324d8f215a82e16092fc57b94606a664f
# Parent  62010fa37ead2c07c73e11859afda9273e13fa52
test GIF87a

diff -r 62010fa37ead -r 0070504324d8 src/http/modules/ngx_http_image_filter_module.c
--- a/src/http/modules/ngx_http_image_filter_module.c	Wed Jun 03 13:57:28 2009 +0000
+++ b/src/http/modules/ngx_http_image_filter_module.c	Fri Jun 05 07:29:47 2009 +0000
@@ -383,11 +383,12 @@
         return NGX_HTTP_IMAGE_JPEG;
 
     } else if (p[0] == 'G' && p[1] == 'I' && p[2] == 'F' && p[3] == '8'
-               && p[4] == '9' && p[5] == 'a')
+               && p[5] == 'a')
     {
-        /* GIF */
-
-        return NGX_HTTP_IMAGE_GIF;
+        if (p[4] == '9' || p[4] == '7') {
+            /* GIF */
+            return NGX_HTTP_IMAGE_GIF;
+        }
 
     } else if (p[0] == 0x89 && p[1] == 'P' && p[2] == 'N' && p[3] == 'G'
                && p[4] == 0x0d && p[5] == 0x0a && p[6] == 0x1a && p[7] == 0x0a)