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61884c3b52
The overflow checking code already existed, but didn't work because the math was done on signed numbers instead of unsigned numbers. In the process I also discovered a pre-existing issue that needs to be fixed (and seems that other stream wrappers can have this issue too). Closes GH-18644.
30 lines
565 B
PHP
30 lines
565 B
PHP
--TEST--
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GH-18642 (Signed integer overflow in ext/phar fseek)
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--EXTENSIONS--
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phar
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--INI--
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phar.require_hash=0
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--FILE--
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<?php
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require_once __DIR__ . '/files/phar_oo_test.inc';
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class MyFile extends SplFileObject
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{
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}
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$phar = new Phar($fname);
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$phar->setInfoClass('MyFile');
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$f = $phar['a.php'];
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var_dump($f->fseek(PHP_INT_MAX));
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var_dump($f->fseek(0));
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var_dump($f->fseek(PHP_INT_MIN, SEEK_END));
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var_dump($f->fseek(0, SEEK_SET));
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var_dump($f->fseek(1, SEEK_CUR));
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var_dump($f->fseek(PHP_INT_MAX, SEEK_CUR));
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?>
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--EXPECT--
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int(-1)
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int(0)
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int(-1)
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int(0)
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int(0)
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int(-1)
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