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Reject text files resembling TGA images

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Fixes issue #295

The imlib2 TGA loader returns an imlib image handle without any actual data
when given a text file like this:

    T
    Content-Type: application/javascript
    Content-Length: 3836
    Last-Modified: Wed, 23 Sep 2015 12:25:47 GMT
    Etag: "56029a4b-efc"
    Expires: Sat, 20 Aug 2016 15:14:33 GMT
    Cache-Control: max-age=604800, public
    Accept-Ranges: bytes

Fortunately, `imlib_image_get_data()` returns NULL in this case, so that we can
use it as an additional check when opening files.
This commit is contained in:
Bert Münnich
2017-11-23 14:35:32 +01:00
parent 9dabc5f988
commit f02661879f
3 changed files with 26 additions and 18 deletions
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2
Makefile
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@ -1,4 +1,4 @@
VERSION = 24
VERSION = git-20171123
srcdir = .
VPATH = $(srcdir)