utilities/src/SecXPCError.c

   1 //
   2 //  SecCFXPCWrappers.c
   3 //  utilities
   4 //
   5 //  Created by John Hurley on 5/6/13.
   6 //  Copyright (c) 2013 Apple Inc. All rights reserved.
   7 //
   8
   9 #include <stdio.h>
  10
  11 #include <utilities/SecXPCError.h>
  12 #include <utilities/SecCFError.h>
  13 #include <utilities/SecCFWrappers.h>
  14
  15 CFStringRef sSecXPCErrorDomain = CFSTR("com.apple.security.xpc");
  16
  17 static const char* kDomainKey = "domain";
  18 static const char* kDescriptionKey = "description";
  19 static const char* kCodeKey = "code";
  20
  21 CFErrorRef SecCreateCFErrorWithXPCObject(xpc_object_t xpc_error)
  22 {
  23     CFErrorRef result = NULL;
  24
  25     if (xpc_get_type(xpc_error) == XPC_TYPE_DICTIONARY) {
  26         CFStringRef domain = NULL;
  27
  28         const char * domain_string = xpc_dictionary_get_string(xpc_error, kDomainKey);
  29         if (domain_string != NULL) {
  30             domain = CFStringCreateWithCString(kCFAllocatorDefault, domain_string, kCFStringEncodingUTF8);
  31         } else {
  32             domain = sSecXPCErrorDomain;
  33             CFRetain(domain);
  34         }
  35         CFIndex code = (CFIndex) xpc_dictionary_get_int64(xpc_error, kCodeKey);
  36
  37         const char *description = xpc_dictionary_get_string(xpc_error, kDescriptionKey);
  38
  39         SecCFCreateErrorWithFormat(code, domain, NULL, &result, NULL, CFSTR("Remote error : %s"), description);
  40
  41         CFReleaseSafe(domain);
  42     } else {
  43         SecCFCreateErrorWithFormat(kSecXPCErrorUnexpectedType, sSecXPCErrorDomain, NULL, &result, NULL, CFSTR("Remote error not dictionary!: %@"), xpc_error);
  44     }
  45     return result;
  46 }
  47
  48 static void SecXPCDictionarySetCFString(xpc_object_t dict, const char *key, CFStringRef string)
  49 {
  50     CFStringPerformWithCString(string, ^(const char *utf8Str) {
  51         xpc_dictionary_set_string(dict, key, utf8Str);
  52     });
  53 }
  54
  55 xpc_object_t SecCreateXPCObjectWithCFError(CFErrorRef error)
  56 {
  57     xpc_object_t error_xpc = xpc_dictionary_create(NULL, NULL, 0);
  58
  59     SecXPCDictionarySetCFString(error_xpc, kDomainKey, CFErrorGetDomain(error));
  60     xpc_dictionary_set_int64(error_xpc, kCodeKey, CFErrorGetCode(error));
  61
  62     CFStringRef description = CFErrorCopyDescription(error);
  63     SecXPCDictionarySetCFString(error_xpc, kDescriptionKey, description);
  64     CFReleaseNull(description);
  65
  66     return error_xpc;
  67 }