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2017-04-02Merge pull request #290 from stoeckmann/emallocDaniel Friesel-1/+1
Check malloc return value for NULL.
2017-04-02Merge pull request #289 from stoeckmann/memory-leakDaniel Friesel-0/+2
Fixed memory leak on file name collision.
2017-04-02Check malloc return value for NULL.Tobias Stoeckmann-1/+1
If malloc cannot allocate enough memory, it could return NULL. This is not necessarily true for default Linux settings, but can be provoked there as well by adjusting proc entries. Other systems like the *BSD ones definitely do this. The function _emalloc exists for exactly this purpose, so use it instead of calling malloc directly. Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
2017-04-02Fixed memory leak on file name collision.Tobias Stoeckmann-0/+2
If feh_unique_filename encounters a file that already exists, the memory for the temporary filename is not released. As this happens in /tmp at some code places, an attacker could use this to spray the memory of feh, or simply triggering an out of memory condition. Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
2017-04-02Avoid out of boundary read on empty/broken file.Tobias Stoeckmann-2/+2
If ereadfile encounters an empty file or the file could not be read, an out ouf boundary read (and possible write) occurs. Always check the return value of fread to be > 0 before processing the result buffer. Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
2014-04-14Use new path_is_url helper instead of repeated strncmp chainsDaniel Friesel-0/+9
2011-09-03utils.c: Remove unused functions stroflen, feh_get_tmp_dir, feh_get_user_nameDaniel Friesel-44/+0
2011-04-30Initial support for in-image warning display (closes #43)Daniel Friesel-4/+4
2010-06-10Remove D_ENTER/D_RETURN, use gdb tracepoints + readelf/awk magic insteadDaniel Friesel-2/+1
2010-02-13Change source code indentation (indent -kr -i8 -hnl, mainly)Daniel Friesel-169/+158
2010-02-05Initial commit (upstream 1.3.4)Daniel Friesel-0/+248