（用代码更新了问题）
正如标题所说，我想知道是否可以将CFNumber(kCFNumberSInt64Type)转换为long或int？
这是我目前正在使用的代码。
#include "MobileDevice.h"
void device_callback(struct am_device_notification_callback_info *info, void *arg) {
struct am_device *dev;
if (info->msg == ADNCI_MSG_CONNECTED) {
dev = info->dev;
CFRetain(dev);
AMDSetLogLevel(5);
AMDeviceConnect(dev);
assert(AMDeviceIsPaired(dev));
assert(!AMDeviceValidatePairing(dev));
assert(!AMDeviceStartSession(dev));
assert(AMDeviceIsPaired(dev));
assert(AMDeviceValidatePairing(dev) == 0);
int64_t i1, i2 = 42;
CFNumberRef ecid = AMDeviceCopyValue(dev, 0, CFSTR("UniqueChipID")); // this is what I want as a long/int
printf("ecid (%s)",CFNumberGetValue(ecid, kCFNumberSInt64Type, &i1));
}
}
int main(int argc, char *argv[]) {
struct am_device_notification *notify;
AMDeviceNotificationSubscribe(&device_callback, 0, 0, NULL, ¬ify);
CFRunLoopRun();
}
/* ----------------------------------------------------------------------------
* MobileDevice.h - interface to MobileDevice.framework
* $LastChangedDate: 2007-07-09 18:59:29 -0700 (Mon, 09 Jul 2007) $
*
* Copied from http://iphonesvn.halifrag.com/svn/iPhone/
* With modifications from Allen Porter and Scott Turner
*
* ------------------------------------------------------------------------- */
#ifndef MOBILEDEVICE_H
#define MOBILEDEVICE_H
#ifdef __cplusplus
extern "C" {
#endif
#if defined(WIN32)
#include <CoreFoundation.h>
typedef unsigned int mach_error_t;
#elif defined(__APPLE__)
#include <CoreFoundation/CoreFoundation.h>
#include <mach/error.h>
#endif
/* Error codes */
#define MDERR_APPLE_MOBILE (err_system(0x3a))
#define MDERR_IPHONE (err_sub(0))
/* Apple Mobile (AM*) errors */
#define MDERR_OK ERR_SUCCESS
#define MDERR_SYSCALL (ERR_MOBILE_DEVICE | 0x01)
#define MDERR_OUT_OF_MEMORY (ERR_MOBILE_DEVICE | 0x03)
#define MDERR_QUERY_FAILED (ERR_MOBILE_DEVICE | 0x04)
#define MDERR_INVALID_ARGUMENT (ERR_MOBILE_DEVICE | 0x0b)
#define MDERR_DICT_NOT_LOADED (ERR_MOBILE_DEVICE | 0x25)
/* Apple File Connection (AFC*) errors */
#define MDERR_AFC_OUT_OF_MEMORY 0x03
/* USBMux errors */
#define MDERR_USBMUX_ARG_NULL 0x16
#define MDERR_USBMUX_FAILED 0xffffffff
/* Messages passed to device notification callbacks: passed as part of
* am_device_notification_callback_info. */
#define ADNCI_MSG_CONNECTED 1
#define ADNCI_MSG_DISCONNECTED 2
#define ADNCI_MSG_UNKNOWN 3
#define AMD_IPHONE_PRODUCT_ID 0x1290
#define AMD_IPHONE_SERIAL "3391002d9c804d105e2c8c7d94fc35b6f3d214a3"
/* Services, found in /System/Library/Lockdown/Services.plist */
#define AMSVC_AFC CFSTR("com.apple.afc")
#define AMSVC_BACKUP CFSTR("com.apple.mobilebackup")
#define AMSVC_CRASH_REPORT_COPY CFSTR("com.apple.crashreportcopy")
#define AMSVC_DEBUG_IMAGE_MOUNT CFSTR("com.apple.mobile.debug_image_mount")
#define AMSVC_NOTIFICATION_PROXY CFSTR("com.apple.mobile.notification_proxy")
#define AMSVC_PURPLE_TEST CFSTR("com.apple.purpletestr")
#define AMSVC_SOFTWARE_UPDATE CFSTR("com.apple.mobile.software_update")
#define AMSVC_SYNC CFSTR("com.apple.mobilesync")
#define AMSVC_SCREENSHOT CFSTR("com.apple.screenshotr")
#define AMSVC_SYSLOG_RELAY CFSTR("com.apple.syslog_relay")
#define AMSVC_SYSTEM_PROFILER CFSTR("com.apple.mobile.system_profiler")
typedef unsigned int afc_error_t;
typedef unsigned int usbmux_error_t;
typedef unsigned int service_conn_t;
struct am_recovery_device;
typedef struct am_device_notification_callback_info {
struct am_device *dev; /* 0 device */
unsigned int msg; /* 4 one of ADNCI_MSG_* */
} __attribute__ ((packed)) am_device_notification_callback_info;
/* The type of the device restore notification callback functions.
* TODO: change to correct type. */
typedef void (*am_restore_device_notification_callback)(struct
am_recovery_device *);
/* This is a CoreFoundation object of class AMRecoveryModeDevice. */
typedef struct am_recovery_device {
unsigned char unknown0[8]; /* 0 */
am_restore_device_notification_callback callback; /* 8 */
void *user_info; /* 12 */
unsigned char unknown1[12]; /* 16 */
unsigned int readwrite_pipe; /* 28 */
unsigned char read_pipe; /* 32 */
unsigned char write_ctrl_pipe; /* 33 */
unsigned char read_unknown_pipe; /* 34 */
unsigned char write_file_pipe; /* 35 */
unsigned char write_input_pipe; /* 36 */
} __attribute__ ((packed)) am_recovery_device;
/* A CoreFoundation object of class AMRestoreModeDevice. */
typedef struct am_restore_device {
unsigned char unknown[32];
int port;
} __attribute__ ((packed)) am_restore_device;
/* The type of the device notification callback function. */
typedef void(*am_device_notification_callback)(struct
am_device_notification_callback_info *, void* arg);
/* The type of the _AMDDeviceAttached function.
* TODO: change to correct type. */
typedef void *amd_device_attached_callback;
typedef struct am_device {
unsigned char unknown0[16]; /* 0 - zero */
unsigned int device_id; /* 16 */
unsigned int product_id; /* 20 - set to AMD_IPHONE_PRODUCT_ID */
char *serial; /* 24 - set to AMD_IPHONE_SERIAL */
unsigned int unknown1; /* 28 */
unsigned char unknown2[4]; /* 32 */
unsigned int lockdown_conn; /* 36 */
unsigned char unknown3[8]; /* 40 */
} __attribute__ ((packed)) am_device;
typedef struct am_device_notification {
unsigned int unknown0; /* 0 */
unsigned int unknown1; /* 4 */
unsigned int unknown2; /* 8 */
am_device_notification_callback callback; /* 12 */
unsigned int unknown3; /* 16 */
} __attribute__ ((packed)) am_device_notification;
typedef struct afc_connection {
unsigned int handle; /* 0 */
unsigned int unknown0; /* 4 */
unsigned char unknown1; /* 8 */
unsigned char padding[3]; /* 9 */
unsigned int unknown2; /* 12 */
unsigned int unknown3; /* 16 */
unsigned int unknown4; /* 20 */
unsigned int fs_block_size; /* 24 */
unsigned int sock_block_size; /* 28: always 0x3c */
unsigned int io_timeout; /* 32: from AFCConnectionOpen, usu. 0 */
void *afc_lock; /* 36 */
unsigned int context; /* 40 */
} __attribute__ ((packed)) afc_connection;
typedef struct afc_directory {
unsigned char unknown[0]; /* size unknown */
} __attribute__ ((packed)) afc_directory;
typedef struct afc_dictionary {
unsigned char unknown[0]; /* size unknown */
} __attribute__ ((packed)) afc_dictionary;
typedef unsigned long long afc_file_ref;
typedef struct usbmux_listener_1 { /* offset value in iTunes */
unsigned int unknown0; /* 0 1 */
unsigned char *unknown1; /* 4 ptr, maybe device? */
amd_device_attached_callback callback; /* 8 _AMDDeviceAttached */
unsigned int unknown3; /* 12 */
unsigned int unknown4; /* 16 */
unsigned int unknown5; /* 20 */
} __attribute__ ((packed)) usbmux_listener_1;
typedef struct usbmux_listener_2 {
unsigned char unknown0[4144];
} __attribute__ ((packed)) usbmux_listener_2;
typedef struct am_bootloader_control_packet {
unsigned char opcode; /* 0 */
unsigned char length; /* 1 */
unsigned char magic[2]; /* 2: 0x34, 0x12 */
unsigned char payload[0]; /* 4 */
} __attribute__ ((packed)) am_bootloader_control_packet;
/* ----------------------------------------------------------------------------
* Public routines
* ------------------------------------------------------------------------- */
void AMDSetLogLevel(int level);
/* Registers a notification with the current run loop. The callback gets
* copied into the notification struct, as well as being registered with the
* current run loop. dn_unknown3 gets copied into unknown3 in the same.
* (Maybe dn_unknown3 is a user info parameter that gets passed as an arg to
* the callback?) unused0 and unused1 are both 0 when iTunes calls this.
* In iTunes the callback is located from $3db78e-$3dbbaf.
*
* Returns:
* MDERR_OK if successful
* MDERR_SYSCALL if CFRunLoopAddSource() failed
* MDERR_OUT_OF_MEMORY if we ran out of memory
*/
mach_error_t AMDeviceNotificationSubscribe(am_device_notification_callback
callback, unsigned int unused0, unsigned int unused1, void* //unsigned int
dn_unknown3, struct am_device_notification **notification);
/* Connects to the iPhone. Pass in the am_device structure that the
* notification callback will give to you.
*
* Returns:
* MDERR_OK if successfully connected
* MDERR_SYSCALL if setsockopt() failed
* MDERR_QUERY_FAILED if the daemon query failed
* MDERR_INVALID_ARGUMENT if USBMuxConnectByPort returned 0xffffffff
*/
mach_error_t AMDeviceConnect(struct am_device *device);
/* Calls PairingRecordPath() on the given device, than tests whether the path
* which that function returns exists. During the initial connect, the path
* returned by that function is '/', and so this returns 1.
*
* Returns:
* 0 if the path did not exist
* 1 if it did
*/
int AMDeviceIsPaired(struct am_device *device);
/* iTunes calls this function immediately after testing whether the device is
* paired. It creates a pairing file and establishes a Lockdown connection.
*
* Returns:
* MDERR_OK if successful
* MDERR_INVALID_ARGUMENT if the supplied device is null
* MDERR_DICT_NOT_LOADED if the load_dict() call failed
*/
mach_error_t AMDeviceValidatePairing(struct am_device *device);
/* Creates a Lockdown session and adjusts the device structure appropriately
* to indicate that the session has been started. iTunes calls this function
* after validating pairing.
*
* Returns:
* MDERR_OK if successful
* MDERR_INVALID_ARGUMENT if the Lockdown conn has not been established
* MDERR_DICT_NOT_LOADED if the load_dict() call failed
*/
mach_error_t AMDeviceStartSession(struct am_device *device);
/* Starts a service and returns a handle that can be used in order to further
* access the service. You should stop the session and disconnect before using
* the service. iTunes calls this function after starting a session. It starts
* the service and the SSL connection. unknown may safely be
* NULL (it is when iTunes calls this), but if it is not, then it will be
* filled upon function exit. service_name should be one of the AMSVC_*
* constants. If the service is AFC (AMSVC_AFC), then the handle is the handle
* that will be used for further AFC* calls.
*
* Returns:
* MDERR_OK if successful
* MDERR_SYSCALL if the setsockopt() call failed
* MDERR_INVALID_ARGUMENT if the Lockdown conn has not been established
*/
mach_error_t AMDeviceStartService(struct am_device *device, CFStringRef
service_name, service_conn_t *handle, unsigned int *
unknown);
mach_error_t AMDeviceStartHouseArrestService(struct am_device *device, CFStringRef identifier, void *unknown, service_conn_t *handle, unsigned int *what);
/* Stops a session. You should do this before accessing services.
*
* Returns:
* MDERR_OK if successful
* MDERR_INVALID_ARGUMENT if the Lockdown conn has not been established
*/
mach_error_t AMDeviceStopSession(struct am_device *device);
/* Opens an Apple File Connection. You must start the appropriate service
* first with AMDeviceStartService(). In iTunes, io_timeout is 0.
*
* Returns:
* MDERR_OK if successful
* MDERR_AFC_OUT_OF_MEMORY if malloc() failed
*/
afc_error_t AFCConnectionOpen(service_conn_t handle, unsigned int io_timeout,
struct afc_connection **conn);
/* Pass in a pointer to an afc_device_info structure. It will be filled. */
afc_error_t AFCDeviceInfoOpen(afc_connection *conn, struct
afc_dictionary **info);
/* Turns debug mode on if the environment variable AFCDEBUG is set to a numeric
* value, or if the file '/AFCDEBUG' is present and contains a value. */
void AFCPlatformInit();
/* Opens a directory on the iPhone. Pass in a pointer in dir to be filled in.
* Note that this normally only accesses the iTunes sandbox/partition as the
* root, which is /var/root/Media. Pathnames are specified with '/' delimiters
* as in Unix style.
*
* Returns:
* MDERR_OK if successful
*/
afc_error_t AFCDirectoryOpen(afc_connection *conn, const char *path,
struct afc_directory **dir);
/* Acquires the next entry in a directory previously opened with
* AFCDirectoryOpen(). When dirent is filled with a NULL value, then the end
* of the directory has been reached. '.' and '..' will be returned as the
* first two entries in each directory except the root; you may want to skip
* over them.
*
* Returns:
* MDERR_OK if successful, even if no entries remain
*/
afc_error_t AFCDirectoryRead(afc_connection *conn/*unsigned int unused*/, struct afc_directory *dir,
char **dirent);
afc_error_t AFCDirectoryClose(afc_connection *conn, struct afc_directory *dir);
afc_error_t AFCDirectoryCreate(afc_connection *conn, const char *dirname);
afc_error_t AFCRemovePath(afc_connection *conn, const char *dirname);
afc_error_t AFCRenamePath(afc_connection *conn, const char *from, const char *to);
afc_error_t AFCLinkPath(afc_connection *conn, long long int linktype, const char *target, const char *linkname);
/* Returns the context field of the given AFC connection. */
unsigned int AFCConnectionGetContext(afc_connection *conn);
/* Returns the fs_block_size field of the given AFC connection. */
unsigned int AFCConnectionGetFSBlockSize(afc_connection *conn);
/* Returns the io_timeout field of the given AFC connection. In iTunes this is
* 0. */
unsigned int AFCConnectionGetIOTimeout(afc_connection *conn);
/* Returns the sock_block_size field of the given AFC connection. */
unsigned int AFCConnectionGetSocketBlockSize(afc_connection *conn);
/* Closes the given AFC connection. */
afc_error_t AFCConnectionClose(afc_connection *conn);
/* Registers for device notifications related to the restore process. unknown0
* is zero when iTunes calls this. In iTunes,
* the callbacks are located at:
* 1: $3ac68e-$3ac6b1, calls $3ac542(unknown1, arg, 0)
* 2: $3ac66a-$3ac68d, calls $3ac542(unknown1, 0, arg)
* 3: $3ac762-$3ac785, calls $3ac6b2(unknown1, arg, 0)
* 4: $3ac73e-$3ac761, calls $3ac6b2(unknown1, 0, arg)
*/
unsigned int AMRestoreRegisterForDeviceNotifications(
am_restore_device_notification_callback dfu_connect_callback,
am_restore_device_notification_callback recovery_connect_callback,
am_restore_device_notification_callback dfu_disconnect_callback,
am_restore_device_notification_callback recovery_disconnect_callback,
unsigned int unknown0,
void *user_info);
/* Causes the restore functions to spit out (unhelpful) progress messages to
* the file specified by the given path. iTunes always calls this right before
* restoring with a path of
* "$HOME/Library/Logs/iPhone Updater Logs/iPhoneUpdater X.log", where X is an
* unused number.
*/
unsigned int AMRestoreEnableFileLogging(char *path);
/* Initializes a new option dictionary to default values. Pass the constant
* kCFAllocatorDefault as the allocator. The option dictionary looks as
* follows:
* {
* NORImageType => 'production',
* AutoBootDelay => 0,
* KernelCacheType => 'Release',
* UpdateBaseband => true,
* DFUFileType => 'RELEASE',
* SystemImageType => 'User',
* CreateFilesystemPartitions => true,
* FlashNOR => true,
* RestoreBootArgs => 'rd=md0 nand-enable-reformat=1 -progress'
* BootImageType => 'User'
* }
*
* Returns:
* the option dictionary if successful
* NULL if out of memory
*/
CFMutableDictionaryRef AMRestoreCreateDefaultOptions(CFAllocatorRef allocator);
/* ----------------------------------------------------------------------------
* Less-documented public routines
* ------------------------------------------------------------------------- */
/* mode 2 = read, mode 3 = write */
afc_error_t AFCFileRefOpen(afc_connection *conn, const char *path,
unsigned long long mode, afc_file_ref *ref);
afc_error_t AFCFileRefSeek(afc_connection *conn, afc_file_ref ref,
unsigned long long offset1, unsigned long long offset2);
afc_error_t AFCFileRefRead(afc_connection *conn, afc_file_ref ref,
void *buf, unsigned int *len);
afc_error_t AFCFileRefSetFileSize(afc_connection *conn, afc_file_ref ref,
unsigned long long offset);
afc_error_t AFCFileRefWrite(afc_connection *conn, afc_file_ref ref,
const void *buf, unsigned int len);
afc_error_t AFCFileRefClose(afc_connection *conn, afc_file_ref ref);
afc_error_t AFCFileInfoOpen(afc_connection *conn, const char *path, struct
afc_dictionary **info);
afc_error_t AFCKeyValueRead(struct afc_dictionary *dict, char **key, char **
val);
afc_error_t AFCKeyValueClose(struct afc_dictionary *dict);
unsigned int AMRestorePerformRecoveryModeRestore(struct am_recovery_device *
rdev, CFDictionaryRef opts, void *callback, void *user_info);
unsigned int AMRestorePerformRestoreModeRestore(struct am_restore_device *
rdev, CFDictionaryRef opts, void *callback, void *user_info);
struct am_restore_device *AMRestoreModeDeviceCreate(unsigned int unknown0,
unsigned int connection_id, unsigned int unknown1);
unsigned int AMRestoreCreatePathsForBundle(CFStringRef restore_bundle_path,
CFStringRef kernel_cache_type, CFStringRef boot_image_type, unsigned int
unknown0, CFStringRef *firmware_dir_path, CFStringRef *
kernelcache_restore_path, unsigned int unknown1, CFStringRef *
ramdisk_path);
unsigned int AMDeviceGetConnectionID(struct am_device *device);
mach_error_t AMDeviceEnterRecovery(struct am_device *device);
mach_error_t AMDeviceDisconnect(struct am_device *device);
mach_error_t AMDeviceRetain(struct am_device *device);
mach_error_t AMDeviceRelease(struct am_device *device);
CFStringRef AMDeviceCopyValue(struct am_device *device, unsigned int, CFStringRef cfstring);
CFStringRef AMDeviceCopyDeviceIdentifier(struct am_device *device);
typedef void (*notify_callback)(CFStringRef notification, void *data);
mach_error_t AMDPostNotification(service_conn_t socket, CFStringRef notification, CFStringRef userinfo);
mach_error_t AMDObserveNotification(void *socket, CFStringRef notification);
mach_error_t AMDListenForNotifications(void *socket, notify_callback cb, void *data);
mach_error_t AMDShutdownNotificationProxy(void *socket);
/*edits by geohot*/
mach_error_t AMDeviceDeactivate(struct am_device *device);
mach_error_t AMDeviceActivate(struct am_device *device, CFMutableDictionaryRef);
/*end*/
void *AMDeviceSerialize(struct am_device *device);
void AMDAddLogFileDescriptor(int fd);
//kern_return_t AMDeviceSendMessage(service_conn_t socket, void *unused, CFPropertyListRef plist);
//kern_return_t AMDeviceReceiveMessage(service_conn_t socket, CFDictionaryRef options, CFPropertyListRef * result);
/* ----------------------------------------------------------------------------
* Semi-private routines
* ------------------------------------------------------------------------- */
/* Pass in a usbmux_listener_1 structure and a usbmux_listener_2 structure
* pointer, which will be filled with the resulting usbmux_listener_2.
*
* Returns:
* MDERR_OK if completed successfully
* MDERR_USBMUX_ARG_NULL if one of the arguments was NULL
* MDERR_USBMUX_FAILED if the listener was not created successfully
*/
usbmux_error_t USBMuxListenerCreate(struct usbmux_listener_1 *esi_fp8, struct
usbmux_listener_2 **eax_fp12);
/* ----------------------------------------------------------------------------
* Less-documented semi-private routines
* ------------------------------------------------------------------------- */
usbmux_error_t USBMuxListenerHandleData(void *);
/* ----------------------------------------------------------------------------
* Private routines - here be dragons
* ------------------------------------------------------------------------- */
/* AMRestorePerformRestoreModeRestore() calls this function with a dictionary
* in order to perform certain special restore operations
* (RESTORED_OPERATION_*). It is thought that this function might enable
* significant access to the phone. */
typedef unsigned int (*t_performOperation)(struct am_restore_device *rdev,
CFDictionaryRef op); // __attribute__ ((regparm(2)));
#ifdef __cplusplus
}
#endif
#endif
如果有人知道我遇到的问题的解决方案，我会很高兴：D
答案 0 :(得分：1)
您正在寻找CFNumberGetValue。
#include <stdint.h>
...
int64_t i1, i2 = 42;
CFNumberRef cfnum = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt64Type, &i2);
/* We now got a CFNumberRef which encapsulates i2's value */
CFNumberGetValue(cfnum, kCFNumberSInt64Type, &i1);
/* We now got the same value in i1 */
我不太熟悉Objective C，但我认为应该保证C99支持（以及可选的<stdint.h>）。
答案 1 :(得分：1)
首先，你发布了太多不相关的代码。当您发布要询问的代码时，您应该将其减少到仍然可以重现问题的最小示例。
您还应该准确解释问题所在。有编译错误吗？你得错了吗？
无论如何，我认为问题在于这一行：
printf("ecid (%s)",CFNumberGetValue(ecid, kCFNumberSInt64Type, &i1));
那是因为CFNumberGetValue()的返回值不是检索到的值。它是一个表示成功或失败的布尔值。检索到的值存储在其地址在第三个参数中传递的变量中。您传递了i1的地址，因此它存储在该变量中。
此外，您使用了%s格式说明符，它需要指向C样式字符串的指针（以空字符结尾的字符数组）。如果传递整数或布尔值，则不会得到明智的结果。你很可能会崩溃。
您可以执行以下操作：
if (CFNumberGetValue(ecid, kCFNumberSInt64Type, &i1))
printf("ecid (%lld)", i1);
else
/* handle failure */;
另一种方法，因为您使用的是Objective-C，就是利用CFNumber免费桥接到NSNumber这一事实：
NSNumber* ecid = (NSNumber*)CFBridgingRelease(AMDeviceCopyValue(dev, 0, CFSTR("UniqueChipID"))); // this is what I want as a long/int
printf("ecid (%lld)", ecid.longLongValue);