Security-58286.200.222.tar.gz

[apple/security.git] / OSX / sec / Security / SecBase.c

diff --git a/OSX/sec/Security/SecBase.c b/OSX/sec/Security/SecBase.c
new file mode 100644 (file)
index 0000000..9f929cc
--- /dev/null
+++ b/OSX/sec/Security/SecBase.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2006-2017 Apple Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/*
+ * SecBase.c
+ */
+
+#ifdef STANDALONE
+/* Allows us to build genanchors against the BaseSDK. */
+#undef __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__
+#undef __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
+#endif
+
+#include <Availability.h>
+#include "SecFramework.h"
+#include <dispatch/dispatch.h>
+#include <CoreFoundation/CFBundle.h>
+#include <CoreFoundation/CFURLAccess.h>
+#include <Security/SecRandom.h>
+#include <CommonCrypto/CommonRandomSPI.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <utilities/debugging.h>
+#include <utilities/SecCFWrappers.h>
+#include <Security/SecBase.h>
+#include <inttypes.h>
+
+#if !TARGET_OS_OSX
+
+static CFStringRef copyErrorMessageFromBundle(OSStatus status, CFStringRef tableName);
+
+// caller MUST release the string, since it is gotten with "CFCopyLocalizedStringFromTableInBundle"
+// intended use of reserved param is to pass in CFStringRef with name of the Table for lookup
+// Will look by default in "SecErrorMessages.strings" in the resources of Security.framework.
+
+CFStringRef
+SecCopyErrorMessageString(OSStatus status, void *reserved)
+{
+    CFStringRef result = copyErrorMessageFromBundle(status, CFSTR("SecErrorMessages"));
+    if (!result)
+        result = copyErrorMessageFromBundle(status, CFSTR("SecDebugErrorMessages"));
+
+    if (!result)
+    {
+        // no error message found, so format a faked-up error message from the status
+        result = CFStringCreateWithFormat(NULL, NULL, CFSTR("OSStatus %d"), (int)status);
+    }
+
+    return result;
+}
+
+CFStringRef
+copyErrorMessageFromBundle(OSStatus status,CFStringRef tableName)
+{
+
+    CFStringRef errorString = nil;
+    CFStringRef keyString = nil;
+    CFBundleRef secBundle = NULL;
+
+    // Make a bundle instance using the URLRef.
+    secBundle = CFBundleGetBundleWithIdentifier(kSecFrameworkBundleID);
+    if (!secBundle)
+        goto exit;
+
+    // Convert status to Int32 string representation, e.g. "-25924"
+    keyString = CFStringCreateWithFormat (kCFAllocatorDefault, NULL, CFSTR("%d"), (int)status);
+    if (!keyString)
+        goto exit;
+
+    errorString = CFCopyLocalizedStringFromTableInBundle(keyString, tableName, secBundle, NULL);
+    if (CFStringCompare(errorString, keyString, 0) == kCFCompareEqualTo)    // no real error message
+    {
+        if (errorString)
+            CFRelease(errorString);
+        errorString = nil;
+    }
+exit:
+    if (keyString)
+        CFRelease(keyString);
+
+    return errorString;
+}
+
+const SecRandomRef kSecRandomDefault = NULL;
+
+int SecRandomCopyBytes(__unused SecRandomRef rnd, size_t count, void *bytes) {
+    return CCRandomCopyBytes(kCCRandomDefault, bytes, count);
+}
+
+#endif // TARGET_OS_OSX