Question

我使用dlsym加载私有API（在iOS 9.3上需要）：

handle = dlopen(CORETELPATH, RTLD_LAZY);
_CTServerConnectionCreate = dlsym(handle, "_CTServerConnectionCreate");

当我杀死应用程序（在多任务模式下从底部滑动）并重新启动应用程序时，它会在第二行崩溃。

handle等于NULL，我没有成功加载lib两次。

我尝试使用dlerror()收到错误，但它也返回NULL。

有人有这个问题吗？如何解决？

修改： 这是完整的代码;使用if (handle != NULL)应用不会崩溃，但私有框架也不会加载

#define CORETELPATH "/System/Library/PrivateFrameworks/CoreTelephony.framework/CoreTelephony"

handle = dlopen(CORETELPATH, RTLD_LAZY);
            NSLog(@"DL Error : %s", dlerror());
            if (handle != NULL) {
                _CTServerConnectionCreate = dlsym(handle, "_CTServerConnectionCreate");
                CTResultConnection = _CTServerConnectionCreate(NULL, simMonitorCallback, NULL);
                _CTServerConnectionAddToRunLoop = dlsym(handle, "_CTServerConnectionAddToRunLoop");
                _CTServerConnectionAddToRunLoop(CTResultConnection, CFRunLoopGetCurrent(), kCFRunLoopCommonModes);
                _CTServerConnectionRegisterForNotification = dlsym(handle, "_CTServerConnectionRegisterForNotification");
                _CTServerConnectionUnregisterForNotification = dlsym(handle, "_CTServerConnectionUnregisterForNotification");
                _CTServerConnectionRegisterForNotification(CTResultConnection, kCTSIMSupportSIMStatusChangeNotification);
                _CTServerConnectionGetSIMStatus = dlsym(handle, "_CTServerConnectionGetSIMStatus");
                _CTServerConnectionCopyMobileEquipmentInfo = dlsym(handle, "_CTServerConnectionCopyMobileEquipmentInfo");
            }

Answer 1

似乎将私有API路径更改为公共修复问题;并且对私有API的调用仍然有效：

#define CORETELPATH "/System/Library/Frameworks/CoreTelephony.framework/CoreTelephony"

应用程序终止后，dlopen返回NULL

1 个答案: