Date: Thu, 15 Sep 2005 02:45:20 +0200 From: Mario Hoerich <spambox@MHoerich.de> To: Warren Block <wblock@wonkity.com> Cc: ports@freebsd.org, questions@freebsd.org Subject: Re: Fly Segfaults? Message-ID: <20050915004519.GA95966@Pandora.MHoerich.de> In-Reply-To: <20050914075631.V45447@wonkity.com> References: <20050914075631.V45447@wonkity.com>
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# Warren Block:
[ SIGSEGV with fly 2.0 ]
> % cat flytest
> new
> size 26,20
> copy 0,0,-1,-1,-1,-1,/home/wblock/2.gif
> copy 13,0,-1,-1,-1,-1,/home/wblock/6.gif
> % fly -i flytest > test.gif
> Creating new 26 by 20 image
> Segmentation fault (core dumped)
The problem here seems to be the image-type: the default type
is set to PNG and the program seems to never check the type of
the image loaded with copy. As a result, the gif file runs through
1271 img_file = gdImageCreateFromPng(img_to_copy);
^^^
That returns an unchecked NULL, which is dereferenced just
a couple of lines down:
1298 arg[4] = img_file->sx;
Program received signal SIGSEGV, Segmentation fault.
0x0804cf46 in copy_to_img (infile=0x281a22c0, img=0x8053000, resize=0)
at fly.c:1298
I'm not really sure how to fix this (and I don't really use
the program), so maybe contact the author about it.
HTH,
Mario
PS: Followup-To/Reply-To -ports set.
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