mirror of
https://github.com/php/php-src.git
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128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2015 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: Zeev Suraski <zeev@zend.com> |
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* Pierre Joye <pierre@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#include "php.h"
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#include <wincrypt.h>
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PHPAPI char *php_win32_error_to_msg(int error)
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{
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char *buf = NULL;
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FormatMessage(
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FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&buf, 0, NULL
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);
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return (buf ? (char *) buf : "");
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}
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int php_win32_check_trailing_space(const char * path, const int path_len) {
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if (path_len < 1) {
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return 1;
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}
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if (path) {
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if (path[0] == ' ' || path[path_len - 1] == ' ') {
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return 0;
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} else {
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return 1;
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}
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} else {
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return 0;
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}
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}
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HCRYPTPROV hCryptProv;
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unsigned int has_crypto_ctx = 0;
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#ifdef ZTS
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MUTEX_T php_lock_win32_cryptoctx;
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void php_win32_init_rng_lock()
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{
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php_lock_win32_cryptoctx = tsrm_mutex_alloc();
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}
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void php_win32_free_rng_lock()
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{
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tsrm_mutex_lock(php_lock_win32_cryptoctx);
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if (has_crypto_ctx == 1) {
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CryptReleaseContext(hCryptProv, 0);
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has_crypto_ctx = 0;
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}
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tsrm_mutex_unlock(php_lock_win32_cryptoctx);
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tsrm_mutex_free(php_lock_win32_cryptoctx);
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}
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#else
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#define php_win32_init_rng_lock();
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#define php_win32_free_rng_lock();
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#endif
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PHPAPI int php_win32_get_random_bytes(unsigned char *buf, size_t size) { /* {{{ */
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unsigned int has_contextg = 0;
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BOOL ret;
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size_t i = 0;
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#ifdef ZTS
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tsrm_mutex_lock(php_lock_win32_cryptoctx);
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#endif
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if (has_crypto_ctx == 0) {
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/* CRYPT_VERIFYCONTEXT > only hashing&co-like use, no need to acces prv keys */
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if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_MACHINE_KEYSET|CRYPT_VERIFYCONTEXT )) {
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/* Could mean that the key container does not exist, let try
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again by asking for a new one. If it fails here, it surely means that the user running
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this process does not have the permission(s) to use this container.
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*/
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if (GetLastError() == NTE_BAD_KEYSET) {
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if (CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET | CRYPT_MACHINE_KEYSET | CRYPT_VERIFYCONTEXT )) {
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has_crypto_ctx = 1;
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} else {
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has_crypto_ctx = 0;
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}
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}
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} else {
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has_crypto_ctx = 1;
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}
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}
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#ifdef ZTS
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tsrm_mutex_unlock(php_lock_win32_cryptoctx);
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#endif
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if (has_crypto_ctx == 0) {
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return FAILURE;
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}
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ret = CryptGenRandom(hCryptProv, size, buf);
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if (ret) {
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return SUCCESS;
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} else {
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return FAILURE;
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}
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}
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/* }}} */
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