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Diffstat (limited to 'win32/winutil.c')
| -rw-r--r-- | win32/winutil.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/win32/winutil.c b/win32/winutil.c new file mode 100644 index 0000000..4afc28f --- /dev/null +++ b/win32/winutil.c @@ -0,0 +1,127 @@ +/* + +----------------------------------------------------------------------+ + | PHP Version 5 | + +----------------------------------------------------------------------+ + | Copyright (c) 1997-2013 The PHP Group | + +----------------------------------------------------------------------+ + | This source file is subject to version 3.01 of the PHP license, | + | that is bundled with this package in the file LICENSE, and is | + | available through the world-wide-web at the following url: | + | http://www.php.net/license/3_01.txt | + | If you did not receive a copy of the PHP license and are unable to | + | obtain it through the world-wide-web, please send a note to | + | license@php.net so we can mail you a copy immediately. | + +----------------------------------------------------------------------+ + | Author: Zeev Suraski <zeev@zend.com> | + * Pierre Joye <pierre@php.net> | + +----------------------------------------------------------------------+ + */ + +/* $Id$ */ + +#include "php.h" +#include <wincrypt.h> + +PHPAPI char *php_win32_error_to_msg(int error) +{ + char *buf = NULL; + + FormatMessage( + FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, + NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&buf, 0, NULL + ); + + return (buf ? (char *) buf : ""); +} + +int php_win32_check_trailing_space(const char * path, const int path_len) { + if (path_len < 1) { + return 1; + } + if (path) { + if (path[0] == ' ' || path[path_len - 1] == ' ') { + return 0; + } else { + return 1; + } + } else { + return 0; + } +} + +HCRYPTPROV hCryptProv; +unsigned int has_crypto_ctx = 0; + +#ifdef ZTS +MUTEX_T php_lock_win32_cryptoctx; +void php_win32_init_rng_lock() +{ + php_lock_win32_cryptoctx = tsrm_mutex_alloc(); +} + +void php_win32_free_rng_lock() +{ + tsrm_mutex_lock(php_lock_win32_cryptoctx); + if (has_crypto_ctx == 1) { + CryptReleaseContext(hCryptProv, 0); + has_crypto_ctx = 0; + } + tsrm_mutex_unlock(php_lock_win32_cryptoctx); + tsrm_mutex_free(php_lock_win32_cryptoctx); + +} +#else +#define php_win32_init_rng_lock(); +#define php_win32_free_rng_lock(); +#endif + + + +PHPAPI int php_win32_get_random_bytes(unsigned char *buf, size_t size) { /* {{{ */ + + unsigned int has_contextg = 0; + + BOOL ret; + size_t i = 0; + +#ifdef ZTS + tsrm_mutex_lock(php_lock_win32_cryptoctx); +#endif + + if (has_crypto_ctx == 0) { + /* CRYPT_VERIFYCONTEXT > only hashing&co-like use, no need to acces prv keys */ + if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_MACHINE_KEYSET|CRYPT_VERIFYCONTEXT )) { + /* Could mean that the key container does not exist, let try + again by asking for a new one. If it fails here, it surely means that the user running + this process does not have the permission(s) to use this container. + */ + if (GetLastError() == NTE_BAD_KEYSET) { + if (CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET | CRYPT_MACHINE_KEYSET | CRYPT_VERIFYCONTEXT )) { + has_crypto_ctx = 1; + } else { + has_crypto_ctx = 0; + } + } + } else { + has_crypto_ctx = 1; + } + } + +#ifdef ZTS + tsrm_mutex_unlock(php_lock_win32_cryptoctx); +#endif + + if (has_crypto_ctx == 0) { + return FAILURE; + } + + ret = CryptGenRandom(hCryptProv, size, buf); + + if (ret) { + return SUCCESS; + } else { + return FAILURE; + } +} +/* }}} */ + |