php-src/ext/gd/tests/bug73279_old.phpt
Christoph M. Becker fc989fc6e7 Fix #73279: Integer overflow in gdImageScaleBilinearPalette()
The color components are supposed to be in range 0..255, so we must not
cast them to `signed char`, what can be the default for `char`.

Port of <https://github.com/libgd/libgd/commit/77c8d359>.
2016-10-10 11:41:39 +02:00

23 lines
582 B
PHP

--TEST--
Bug #73279 (Integer overflow in gdImageScaleBilinearPalette())
--SKIPIF--
<?php
if (!extension_loaded('gd')) die('skip gd extension not available');
if (GD_BUNDLED || version_compare(GD_VERSION, '2.2.4', '>=')) {
die('skip only for external libgd < 2.2.4');
}
?>
--FILE--
<?php
$src = imagecreate(100, 100);
imagecolorallocate($src, 255, 255, 255);
$dst = imagescale($src, 200, 200, IMG_BILINEAR_FIXED);
printf("color: %x\n", imagecolorat($dst, 99, 99));
?>
===DONE===
--XFAIL--
Bug #330 has not yet been fixed
--EXPECT--
color: ffffff
===DONE===