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
15CFStringRef sSecXPCErrorDomain = CFSTR("com.apple.security.xpc");
16
17static const char* kDomainKey = "domain";
18static const char* kDescriptionKey = "description";
19static const char* kCodeKey = "code";
20
21CFErrorRef 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
48static 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
55xpc_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}
68