Security-59306.11.20.tar.gz

[apple/security.git] / OSX / utilities / SecXPCError.c

diff --git a/OSX/utilities/SecXPCError.c b/OSX/utilities/SecXPCError.c
new file mode 100644 (file)
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+++ b/OSX/utilities/SecXPCError.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2013-2014 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@
+ */
+
+
+#include <stdio.h>
+
+#include <utilities/SecXPCError.h>
+#include <utilities/SecCFError.h>
+#include <utilities/SecCFWrappers.h>
+#include <utilities/der_plist.h>
+
+CFStringRef sSecXPCErrorDomain = CFSTR("com.apple.security.xpc");
+
+static const char* kDomainKey = "domain";
+static const char* kCodeKey = "code";
+static const char* kUserInfoKey = "userinfo";
+
+CFErrorRef SecCreateCFErrorWithXPCObject(xpc_object_t xpc_error)
+{
+    CFErrorRef result = NULL;
+
+    if (xpc_get_type(xpc_error) == XPC_TYPE_DICTIONARY) {
+        CFStringRef domain = NULL;
+
+        const char * domain_string = xpc_dictionary_get_string(xpc_error, kDomainKey);
+        if (domain_string != NULL) {
+            domain = CFStringCreateWithCString(kCFAllocatorDefault, domain_string, kCFStringEncodingUTF8);
+        } else {
+            domain = sSecXPCErrorDomain;
+            CFRetain(domain);
+        }
+        CFIndex code = (CFIndex) xpc_dictionary_get_int64(xpc_error, kCodeKey);
+
+        CFTypeRef user_info = NULL;
+        size_t size = 0;
+        const uint8_t *der = xpc_dictionary_get_data(xpc_error, kUserInfoKey, &size);
+        if (der) {
+            const uint8_t *der_end = der + size;
+            der = der_decode_plist(kCFAllocatorDefault, kCFPropertyListImmutable,
+                                   &user_info, NULL, der, der_end);
+            if (der != der_end)
+                CFReleaseNull(user_info);
+        }
+
+        result = CFErrorCreate(NULL, domain, code, user_info);
+
+        CFReleaseSafe(user_info);
+        CFReleaseSafe(domain);
+    } else {
+        SecCFCreateErrorWithFormat(kSecXPCErrorUnexpectedType, sSecXPCErrorDomain, NULL, &result, NULL, CFSTR("Remote error not dictionary!: %@"), xpc_error);
+    }
+    return result;
+}
+
+static void SecXPCDictionarySetCFString(xpc_object_t dict, const char *key, CFStringRef string)
+{
+    CFStringPerformWithCString(string, ^(const char *utf8Str) {
+        xpc_dictionary_set_string(dict, key, utf8Str);
+    });
+}
+
+xpc_object_t SecCreateXPCObjectWithCFError(CFErrorRef error)
+{
+    xpc_object_t error_xpc = xpc_dictionary_create(NULL, NULL, 0);
+
+    SecXPCDictionarySetCFString(error_xpc, kDomainKey, CFErrorGetDomain(error));
+    xpc_dictionary_set_int64(error_xpc, kCodeKey, CFErrorGetCode(error));
+
+    CFDictionaryRef user_info = CFErrorCopyUserInfo(error);
+    size_t size = der_sizeof_plist(user_info, NULL);
+    if (size) {
+        uint8_t *der = malloc(size);
+        uint8_t *der_end = der + size;
+        uint8_t *der_start = der_encode_plist(user_info, NULL, der, der_end);
+        if (der_start) {
+            assert(der == der_start);
+            xpc_dictionary_set_data(error_xpc, kUserInfoKey, der_start, der_end - der_start);
+        }
+        free(der);
+    }
+    CFRelease(user_info);
+
+    return error_xpc;
+}