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test GIF87a

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This commit is contained in:
Igor Sysoev 2009-06-05 07:29:47 +00:00
parent 5a2898f2b4
commit abf5d3fbe2
1 changed files with 5 additions and 4 deletions
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5
src/http/modules/ngx_http_image_filter_module.c
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@ -383,11 +383,12 @@ ngx_http_image_test(ngx_http_request_t *r, ngx_chain_t *in)
return NGX_HTTP_IMAGE_JPEG; return NGX_HTTP_IMAGE_JPEG;
} else if (p[0] == 'G' && p[1] == 'I' && p[2] == 'F' && p[3] == '8' } else if (p[0] == 'G' && p[1] == 'I' && p[2] == 'F' && p[3] == '8'
&& p[4] == '9' && p[5] == 'a') && p[5] == 'a')
{ {
if (p[4] == '9' || p[4] == '7') {
/* GIF */ /* GIF */
return NGX_HTTP_IMAGE_GIF; return NGX_HTTP_IMAGE_GIF;
}
} else if (p[0] == 0x89 && p[1] == 'P' && p[2] == 'N' && p[3] == 'G' } 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) && p[4] == 0x0d && p[5] == 0x0a && p[6] == 0x1a && p[7] == 0x0a)