diff options
Diffstat (limited to 'ext/filter/tests/048.phpt')
| -rwxr-xr-x | ext/filter/tests/048.phpt | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/ext/filter/tests/048.phpt b/ext/filter/tests/048.phpt new file mode 100755 index 0000000000..92ab6908c7 --- /dev/null +++ b/ext/filter/tests/048.phpt @@ -0,0 +1,41 @@ +--TEST-- +Hex integer overflow +--SKIPIF-- +<?php if (!extension_loaded("filter")) die("skip"); ?> +--FILE-- +<?php +function hex_inc($s) { + $len = strlen($s); + while ($len > 0) { + $len--; + if ($s[$len] != 'f') { + if ($s[$len] == '9') { + $s[$len] = 'a'; + } else { + $s[$len] = $s[$len] + 1; + } + return $s; + } + $s[$len] = '0'; + } + return '1'.$s; +} + + +$s = sprintf("%x", PHP_INT_MAX); +var_dump(is_long(filter_var('0x'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_HEX)))); + +$s = hex_inc($s); +var_dump(is_long(filter_var('0x'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_HEX)))); + +$s = sprintf("%x", ~0); +var_dump(is_long(filter_var('0x'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_HEX)))); + +$s = hex_inc($s); +var_dump(filter_var('0x'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_HEX))); +?> +--EXPECT-- +bool(true) +bool(true) +bool(true) +bool(false) |