diff options
Diffstat (limited to 'ext/filter/tests/047.phpt')
| -rw-r--r-- | ext/filter/tests/047.phpt | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/ext/filter/tests/047.phpt b/ext/filter/tests/047.phpt new file mode 100644 index 0000000..cc41eab --- /dev/null +++ b/ext/filter/tests/047.phpt @@ -0,0 +1,37 @@ +--TEST-- +Octal integer overflow +--SKIPIF-- +<?php if (!extension_loaded("filter")) die("skip"); ?> +--FILE-- +<?php +function octal_inc($s) { + $len = strlen($s); + while ($len > 0) { + $len--; + if ($s[$len] != '7') { + $s[$len] = $s[$len] + 1; + return $s; + } + $s[$len] = '0'; + } + return '1'.$s; +} + + +$s = sprintf("%o", PHP_INT_MAX); +var_dump(is_long(filter_var('0'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_OCTAL)))); + +$s = octal_inc($s); +var_dump(is_long(filter_var('0'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_OCTAL)))); + +$s = sprintf("%o", ~0); +var_dump(is_long(filter_var('0'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_OCTAL)))); + +$s = octal_inc($s); +var_dump(filter_var('0'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_OCTAL))); +?> +--EXPECT-- +bool(true) +bool(true) +bool(true) +bool(false) |