scottmac Mon Nov 17 21:54:25 2008 UTC
Modified files: (Branch: PHP_5_3)
/php-src/ext/openssl openssl.c
Log:
MFH Add openssl_random_pseudo_bytes() in order to expose access to a PRG,
this wraps around whatever the OS provides.
- OpenBSD uses arc4random()
- Windows uses the Windows Crypto API
- FreeBSD, Linux, etc use /dev/random or /dev/urandom if available
[DOC]
http://cvs.php.net/viewvc.cgi/php-src/ext/openssl/openssl.c?r1=1.98.2.5.2.41.2.24&r2=1.98.2.5.2.41.2.25&diff_format=u
Index: php-src/ext/openssl/openssl.c
diff -u php-src/ext/openssl/openssl.c:1.98.2.5.2.41.2.24
php-src/ext/openssl/openssl.c:1.98.2.5.2.41.2.25
--- php-src/ext/openssl/openssl.c:1.98.2.5.2.41.2.24 Mon Nov 17 11:27:57 2008
+++ php-src/ext/openssl/openssl.c Mon Nov 17 21:54:25 2008
@@ -20,7 +20,7 @@
+----------------------------------------------------------------------+
*/
-/* $Id: openssl.c,v 1.98.2.5.2.41.2.24 2008/11/17 11:27:57 felipe Exp $ */
+/* $Id: openssl.c,v 1.98.2.5.2.41.2.25 2008/11/17 21:54:25 scottmac Exp $ */
#ifdef HAVE_CONFIG_H
#include "config.h"
@@ -94,6 +94,7 @@
PHP_FUNCTION(openssl_decrypt);
PHP_FUNCTION(openssl_dh_compute_key);
+PHP_FUNCTION(openssl_random_pseudo_bytes);
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_openssl_x509_export_to_file, 0, 0, 2)
@@ -352,6 +353,11 @@
ZEND_ARG_INFO(0, pub_key)
ZEND_ARG_INFO(0, dh_key)
ZEND_END_ARG_INFO()
+
+ZEND_BEGIN_ARG_INFO_EX(arginfo_openssl_random_pseudo_bytes, 0, 0, 1)
+ ZEND_ARG_INFO(0, length)
+ ZEND_ARG_INFO(1, result_is_strong)
+ZEND_END_ARG_INFO()
/* }}} */
/* {{{ openssl_functions[]
@@ -416,6 +422,7 @@
PHP_FE(openssl_dh_compute_key, arginfo_openssl_dh_compute_key)
+ PHP_FE(openssl_random_pseudo_bytes,
arginfo_openssl_random_pseudo_bytes)
PHP_FE(openssl_error_string, arginfo_openssl_error_string)
{NULL, NULL, NULL}
};
@@ -4704,6 +4711,52 @@
}
/* }}} */
+/* {{{ proto string openssl_random_pseudo_bytes(integer length [, &bool
returned_strong_result])
+ Returns a string of the length specified filled with random pseudo bytes */
+PHP_FUNCTION(openssl_random_pseudo_bytes)
+{
+ long buffer_length;
+ unsigned char *buffer = NULL;
+ zval *zstrong_result_returned = NULL;
+ int strong_result = 0;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l|z",
&buffer_length, &zstrong_result_returned) == FAILURE) {
+ return;
+ }
+
+ if (buffer_length <= 0) {
+ RETURN_FALSE;
+ }
+
+ if (zstrong_result_returned) {
+ zval_dtor(zstrong_result_returned);
+ ZVAL_BOOL(zstrong_result_returned, 0);
+ }
+
+ buffer = emalloc(buffer_length);
+
+ if (!buffer) {
+ RETURN_FALSE;
+ }
+
+#ifdef WINDOWS
+ RAND_screen();
+#endif
+
+ if ((strong_result = RAND_pseudo_bytes(buffer, buffer_length)) < 0) {
+ RETVAL_FALSE;
+ } else {
+ RETVAL_STRINGL((char *)buffer, buffer_length, 1);
+
+ if (zstrong_result_returned) {
+ ZVAL_BOOL(zstrong_result_returned, strong_result);
+ }
+
+ }
+ efree(buffer);
+}
+/* }}} */
+
/*
* Local variables:
* tab-width: 8
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