您提供的是空字典而不是有效查询。
如果您将code from the answer you were looking at 放入您的项目中:
NSMutableDictionary *query = [NSMutableDictionary dictionaryWithObjectsAndKeys:
(__bridge id)kCFBooleanTrue, (__bridge id)kSecReturnAttributes,
(__bridge id)kSecMatchLimitAll, (__bridge id)kSecMatchLimit,
nil];
NSArray *secItemClasses = [NSArray arrayWithObjects:
(__bridge id)kSecClassGenericPassword,
(__bridge id)kSecClassInternetPassword,
(__bridge id)kSecClassCertificate,
(__bridge id)kSecClassKey,
(__bridge id)kSecClassIdentity,
nil];
for (id secItemClass in secItemClasses) {
[query setObject:secItemClass forKey:(__bridge id)kSecClass];
CFTypeRef result = NULL;
SecItemCopyMatching((__bridge CFDictionaryRef)query, &result);
NSLog(@"%@", (__bridge id)result);
if (result != NULL) CFRelease(result);
}
你会得到一个更快乐的结果。
已编辑以添加等效的 CoreFoundation
您没有理由不能在您的 MacOS 命令行工具中包含 Cocoa 框架(我假设您正在编写该工具)。命令行工具不能轻易包含的是 AppKit UI 框架。
无论如何,这里是 CoreFoundation 等价物:
CFMutableDictionaryRef query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(query, kSecReturnAttributes, kCFBooleanTrue);
CFDictionarySetValue(query, kSecMatchLimit, kSecMatchLimitAll);
CFTypeRef types[5];
types[0] = kSecClassGenericPassword;
types[1] = kSecClassInternetPassword;
types[2] = kSecClassCertificate;
types[3] = kSecClassKey;
types[4] = kSecClassIdentity;
CFArrayRef secItemClasses = CFArrayCreate(NULL, (void *)types, 5, &kCFTypeArrayCallBacks);
CFIndex i, c = CFArrayGetCount(secItemClasses);
for(i = 0; i<c; i++)
{
CFTypeRef secItemClass = CFArrayGetValueAtIndex(secItemClasses,i);
CFDictionarySetValue(query, kSecClass, secItemClass);
CFTypeRef result = NULL;
SecItemCopyMatching(query, &result);
NSLog(@"%@", (__bridge id)result);
if (result != NULL) CFRelease(result);
}
CFRelease(secItemClasses);
CFRelease(query);
当我把它放到我自己的测试应用程序中时,我看到大量的各种钥匙串项目和证书。