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* builds/unix/ftsystem.c (FT_Stream_Open): Reject zero-length files. 

Patch from Savannah bug #25151.
This commit is contained in:
Werner Lemberg 2008-12-22 18:09:48 +00:00
parent 3c5ad95166
commit 66043b1c4f
2 changed files with 11 additions and 1 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2008-12-22 Steve Grubb
* builds/unix/ftsystem.c (FT_Stream_Open): Reject zero-length files.
Patch from Savannah bug #25151.
2008-12-21 Werner Lemberg <wl@gnu.org> 2008-12-21 Werner Lemberg <wl@gnu.org>
* src/pfr/pfrdrivr.c, src/winfonts/winfnt.c, src/cache/ftcmanag.c, * src/pfr/pfrdrivr.c, src/winfonts/winfnt.c, src/cache/ftcmanag.c,

7
builds/unix/ftsystem.c
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@ -4,7 +4,7 @@
/* */ /* */
/* Unix-specific FreeType low-level system interface (body). */ /* Unix-specific FreeType low-level system interface (body). */
/* */ /* */
/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007 by */ /* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2008 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */ /* */
/* This file is part of the FreeType project, and may only be used, */ /* This file is part of the FreeType project, and may only be used, */
@ -280,6 +280,11 @@
FT_ERROR(( "FT_Stream_Open: file is too big" )); FT_ERROR(( "FT_Stream_Open: file is too big" ));
goto Fail_Map; goto Fail_Map;
} }
else if ( stat_buf.st_size == 0 )
{
FT_ERROR(( "FT_Stream_Open: zero-length file" ));
goto Fail_Map;
}
/* This cast potentially truncates a 64bit to 32bit! */ /* This cast potentially truncates a 64bit to 32bit! */
stream->size = (unsigned long)stat_buf.st_size; stream->size = (unsigned long)stat_buf.st_size;