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38 lines
854 B
Plaintext
38 lines
854 B
Plaintext
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--TEST--
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Octal integer overflow
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--SKIPIF--
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<?php if (!extension_loaded("filter")) die("skip"); ?>
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--FILE--
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<?php
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function octal_inc($s) {
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$len = strlen($s);
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while ($len > 0) {
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$len--;
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if ($s[$len] != '7') {
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$s[$len] = $s[$len] + 1;
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return $s;
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}
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$s[$len] = '0';
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}
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return '1'.$s;
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}
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$s = sprintf("%o", PHP_INT_MAX);
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var_dump(is_long(filter_var('0'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_OCTAL))));
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$s = octal_inc($s);
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var_dump(is_long(filter_var('0'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_OCTAL))));
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$s = sprintf("%o", ~0);
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var_dump(is_long(filter_var('0'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_OCTAL))));
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$s = octal_inc($s);
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var_dump(filter_var('0'.$s, FILTER_VALIDATE_INT, array("flags"=>FILTER_FLAG_ALLOW_OCTAL)));
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?>
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--EXPECT--
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bool(true)
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bool(true)
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bool(true)
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bool(false)
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