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c1a06704da
Casting a huge unsigned value to signed is implementation-defined behavior in C. By introducing the ZEND_THREEWAY_COMPARE() macro, we can sidestep this integer overflow/underflow/casting problem.
96 lines
2.5 KiB
PHP
96 lines
2.5 KiB
PHP
--TEST--
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Bug #40754 (Overflow checks inside string functions)
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--FILE--
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<?php
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$v = 2147483647;
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var_dump(substr("abcde", 1, $v));
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var_dump(substr_replace("abcde", "x", $v, $v));
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var_dump(strspn("abcde", "abc", $v, $v));
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var_dump(strcspn("abcde", "abc", $v, $v));
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try {
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var_dump(substr_count("abcde", "abc", $v, $v));
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} catch (ValueError $exception) {
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echo $exception->getMessage() . "\n";
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}
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try {
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substr_compare("abcde", "abc", $v, $v);
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} catch (ValueError $exception) {
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echo $exception->getMessage() . "\n";
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}
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try {
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stripos("abcde", "abc", $v);
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} catch (ValueError $exception) {
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echo $exception->getMessage() . "\n";
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}
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try {
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substr_count("abcde", "abc", $v, 1);
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} catch (ValueError $exception) {
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echo $exception->getMessage() . "\n";
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}
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try {
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substr_count("abcde", "abc", 1, $v);
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} catch (ValueError $exception) {
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echo $exception->getMessage() . "\n";
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}
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try {
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strpos("abcde", "abc", $v);
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} catch (ValueError $exception) {
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echo $exception->getMessage() . "\n";
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}
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try {
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stripos("abcde", "abc", $v);
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} catch (ValueError $exception) {
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echo $exception->getMessage() . "\n";
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}
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try {
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strrpos("abcde", "abc", $v);
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} catch (ValueError $exception) {
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echo $exception->getMessage() . "\n";
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}
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try {
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strripos("abcde", "abc", $v);
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} catch (ValueError $exception) {
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echo $exception->getMessage() . "\n";
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}
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try {
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strripos("abcde", "abc", $v);
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} catch (ValueError $exception) {
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echo $exception->getMessage() . "\n";
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}
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var_dump(strncmp("abcde", "abc", $v));
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var_dump(chunk_split("abcde", $v, "abc"));
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var_dump(substr("abcde", $v, $v));
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?>
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--EXPECT--
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string(4) "bcde"
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string(6) "abcdex"
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int(0)
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int(0)
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substr_count(): Argument #3 ($offset) must be contained in argument #1 ($haystack)
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substr_compare(): Argument #3 ($offset) must be contained in argument #1 ($main_str)
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stripos(): Argument #3 ($offset) must be contained in argument #1 ($haystack)
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substr_count(): Argument #3 ($offset) must be contained in argument #1 ($haystack)
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substr_count(): Argument #4 ($length) must be contained in argument #1 ($haystack)
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strpos(): Argument #3 ($offset) must be contained in argument #1 ($haystack)
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stripos(): Argument #3 ($offset) must be contained in argument #1 ($haystack)
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strrpos(): Argument #3 ($offset) must be contained in argument #1 ($haystack)
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strripos(): Argument #3 ($offset) must be contained in argument #1 ($haystack)
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strripos(): Argument #3 ($offset) must be contained in argument #1 ($haystack)
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int(1)
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string(8) "abcdeabc"
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string(0) ""
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