Security/utilities/src/SecXPCError.c

   1 /*
   2  * Copyright (c) 2013-2014 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24
  25 #include <stdio.h>
  26
  27 #include <utilities/SecXPCError.h>
  28 #include <utilities/SecCFError.h>
  29 #include <utilities/SecCFWrappers.h>
  30
  31 CFStringRef sSecXPCErrorDomain = CFSTR("com.apple.security.xpc");
  32
  33 static const char* kDomainKey = "domain";
  34 static const char* kDescriptionKey = "description";
  35 static const char* kCodeKey = "code";
  36
  37 CFErrorRef SecCreateCFErrorWithXPCObject(xpc_object_t xpc_error)
  38 {
  39     CFErrorRef result = NULL;
  40
  41     if (xpc_get_type(xpc_error) == XPC_TYPE_DICTIONARY) {
  42         CFStringRef domain = NULL;
  43
  44         const char * domain_string = xpc_dictionary_get_string(xpc_error, kDomainKey);
  45         if (domain_string != NULL) {
  46             domain = CFStringCreateWithCString(kCFAllocatorDefault, domain_string, kCFStringEncodingUTF8);
  47         } else {
  48             domain = sSecXPCErrorDomain;
  49             CFRetain(domain);
  50         }
  51         CFIndex code = (CFIndex) xpc_dictionary_get_int64(xpc_error, kCodeKey);
  52
  53         const char *description = xpc_dictionary_get_string(xpc_error, kDescriptionKey);
  54
  55         SecCFCreateErrorWithFormat(code, domain, NULL, &result, NULL, CFSTR("Remote error : %s"), description);
  56
  57         CFReleaseSafe(domain);
  58     } else {
  59         SecCFCreateErrorWithFormat(kSecXPCErrorUnexpectedType, sSecXPCErrorDomain, NULL, &result, NULL, CFSTR("Remote error not dictionary!: %@"), xpc_error);
  60     }
  61     return result;
  62 }
  63
  64 static void SecXPCDictionarySetCFString(xpc_object_t dict, const char *key, CFStringRef string)
  65 {
  66     CFStringPerformWithCString(string, ^(const char *utf8Str) {
  67         xpc_dictionary_set_string(dict, key, utf8Str);
  68     });
  69 }
  70
  71 xpc_object_t SecCreateXPCObjectWithCFError(CFErrorRef error)
  72 {
  73     xpc_object_t error_xpc = xpc_dictionary_create(NULL, NULL, 0);
  74
  75     SecXPCDictionarySetCFString(error_xpc, kDomainKey, CFErrorGetDomain(error));
  76     xpc_dictionary_set_int64(error_xpc, kCodeKey, CFErrorGetCode(error));
  77
  78     CFStringRef description = CFErrorCopyDescription(error);
  79     SecXPCDictionarySetCFString(error_xpc, kDescriptionKey, description);
  80     CFReleaseNull(description);
  81
  82     return error_xpc;
  83 }