tree 52084b8b1d101c69e667ba934701ad3f69fab16c
parent 80495124b29d8abf0ec40ae625f5bcb5ef623f42
author John Bowler <jbowler@acm.org> 1467575291 -0700
committer John Bowler <jbowler@acm.org> 1467578976 -0700

pngcp bug fixes

The fixed size buffer for the file name being processed could have a byte
written beyond the end; a bug where the test was updated without changing the
size of the buffer.  This commit reduces the buffer to the system maximum.

png_getrowbytes could, in theory, return 0; probably only if there is a bug in
libpng but the code now checks.

Signed-off-by: John Bowler <jbowler@acm.org>