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php 5.4.3+patches

    1: /*
    2:    +----------------------------------------------------------------------+
    3:    | PHP Version 5                                                        |
    4:    +----------------------------------------------------------------------+
    5:    | Copyright (c) 1997-2012 The PHP Group                                |
    6:    +----------------------------------------------------------------------+
    7:    | This source file is subject to version 3.01 of the PHP license,      |
    8:    | that is bundled with this package in the file LICENSE, and is        |
    9:    | available through the world-wide-web at the following url:           |
   10:    | http://www.php.net/license/3_01.txt                                  |
   11:    | If you did not receive a copy of the PHP license and are unable to   |
   12:    | obtain it through the world-wide-web, please send a note to          |
   13:    | license@php.net so we can mail you a copy immediately.               |
   14:    +----------------------------------------------------------------------+
   15:    | Author: Zeev Suraski <zeev@zend.com>                                 |
   16:    *         Pierre Joye <pierre@php.net>                                 |
   17:    +----------------------------------------------------------------------+
   18:  */
   19: 
   20: /* $Id: winutil.c,v 1.1.1.2 2012/05/29 12:34:34 misho Exp $ */
   21: 
   22: #include "php.h"
   23: #include <wincrypt.h>
   24: 
   25: PHPAPI char *php_win32_error_to_msg(int error)
   26: {
   27: 	char *buf = NULL;
   28: 
   29: 	FormatMessage(
   30: 		FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |	FORMAT_MESSAGE_IGNORE_INSERTS,
   31: 		NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),	(LPTSTR)&buf, 0, NULL
   32: 	);
   33: 
   34: 	return (buf ? (char *) buf : "");
   35: }
   36: 
   37: int php_win32_check_trailing_space(const char * path, const int path_len) {
   38: 	if (path_len < 1) {
   39: 		return 1;
   40: 	}
   41: 	if (path) {
   42: 		if (path[0] == ' ' || path[path_len - 1] == ' ') {
   43: 			return 0;
   44: 		} else {
   45: 			return 1;
   46: 		}
   47: 	} else {
   48: 		return 0;
   49: 	}
   50: }
   51: 
   52: HCRYPTPROV   hCryptProv;
   53: unsigned int has_crypto_ctx = 0;
   54: 
   55: #ifdef ZTS
   56: MUTEX_T php_lock_win32_cryptoctx;
   57: void php_win32_init_rng_lock()
   58: {
   59: 	php_lock_win32_cryptoctx = tsrm_mutex_alloc();
   60: }
   61: 
   62: void php_win32_free_rng_lock()
   63: {
   64: 	tsrm_mutex_lock(php_lock_win32_cryptoctx);
   65: 	if (has_crypto_ctx == 1) {
   66: 		CryptReleaseContext(hCryptProv, 0);
   67: 		has_crypto_ctx = 0;
   68: 	}
   69: 	tsrm_mutex_unlock(php_lock_win32_cryptoctx);
   70: 	tsrm_mutex_free(php_lock_win32_cryptoctx);
   71: 
   72: }
   73: #else
   74: #define php_win32_init_rng_lock();
   75: #define php_win32_free_rng_lock();
   76: #endif
   77: 
   78: 
   79: 
   80: PHPAPI int php_win32_get_random_bytes(unsigned char *buf, size_t size) {  /* {{{ */
   81: 
   82: 	unsigned int has_contextg = 0;
   83: 
   84: 	BOOL ret;
   85: 	size_t i = 0;
   86: 
   87: #ifdef ZTS
   88: 	tsrm_mutex_lock(php_lock_win32_cryptoctx);
   89: #endif
   90: 
   91: 	if (has_crypto_ctx == 0) {
   92: 		/* CRYPT_VERIFYCONTEXT > only hashing&co-like use, no need to acces prv keys */
   93: 		if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_MACHINE_KEYSET|CRYPT_VERIFYCONTEXT )) {
   94: 			/* Could mean that the key container does not exist, let try 
   95: 			   again by asking for a new one. If it fails here, it surely means that the user running 
   96:                this process does not have the permission(s) to use this container.
   97:              */
   98: 			if (GetLastError() == NTE_BAD_KEYSET) {
   99: 				if (CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET | CRYPT_MACHINE_KEYSET | CRYPT_VERIFYCONTEXT )) {
  100: 					has_crypto_ctx = 1;
  101: 				} else {
  102: 					has_crypto_ctx = 0;
  103: 				}
  104: 			}
  105: 		} else {
  106: 			has_crypto_ctx = 1;
  107: 		}
  108: 	}
  109: 
  110: #ifdef ZTS
  111: 	tsrm_mutex_unlock(php_lock_win32_cryptoctx);
  112: #endif
  113: 
  114: 	if (has_crypto_ctx == 0) {
  115: 		return FAILURE;
  116: 	}
  117: 
  118: 	ret = CryptGenRandom(hCryptProv, size, buf);
  119: 
  120: 	if (ret) {
  121: 		return SUCCESS;
  122: 	} else {
  123: 		return FAILURE;
  124: 	}
  125: }
  126: /* }}} */
  127: