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#ifndef __USBMUXD_H
#define __USBMUXD_H
#include <stdint.h>
/**
* Device information structure holding data to identify the device.
* The relevant 'handle' should be passed to 'usbmuxd_connect()', to
* start a proxy connection. The value 'handle' should be considered
* opaque and no presumption made about the meaning of its value.
*/
typedef struct {
int handle;
int product_id;
char uuid[41];
} usbmuxd_device_info_t;
/**
* event types for event callback function
*/
enum usbmuxd_event_type {
UE_DEVICE_ADD = 1,
UE_DEVICE_REMOVE
};
/**
* Event structure that will be passed to the callback function.
* 'event' will contains the type of the event, and 'device' will contains
* information about the device.
*/
typedef struct {
int event;
usbmuxd_device_info_t device;
} usbmuxd_event_t;
/**
* Callback function prototype.
*/
typedef void (*usbmuxd_event_cb_t) (const usbmuxd_event_t *event, void *user_data);
/**
* Subscribe a callback function so that applications get to know about
* device add/remove events.
*
* @param callback A callback function that is executed when an event occurs.
*
* @return 0 on success or negative on error.
*/
int usbmuxd_subscribe(usbmuxd_event_cb_t callback, void *user_data);
/**
* Unsubscribe callback.
*
* @return only 0 for now.
*/
int usbmuxd_unsubscribe();
/**
* Contacts usbmuxd and retrieves a list of connected devices.
*
* @param available_devices pointer to an array of usbmuxd_device_info_t
* that will hold records of the connected devices.
*
* @return number of available devices, zero on no devices, or negative on error
*/
int usbmuxd_scan(usbmuxd_device_info_t **available_devices);
/**
* Request proxy connect to
*
* @param handle returned by 'usbmuxd_scan()'
*
* @param tcp_port TCP port number on device, in range 0-65535.
* common values are 62078 for lockdown, and 22 for SSH.
*
* @return file descriptor socket of the connection, or -1 on error
*/
int usbmuxd_connect(const int handle, const unsigned short tcp_port);
/**
* Disconnect. For now, this just closes the socket file descriptor.
*
* @param sfd socker file descriptor returned by usbmuxd_connect()
*
* @return 0 on success, -1 on error.
*/
int usbmuxd_disconnect(int sfd);
/**
* Send data to the specified socket.
*
* @param sfd socket file descriptor returned by usbmuxd_connect()
* @param data buffer to send
* @param len size of buffer to send
* @param sent_bytes how many bytes sent
*
* @return 0 on success, a negative errno value otherwise.
*/
int usbmuxd_send(int sfd, const char *data, uint32_t len, uint32_t *sent_bytes);
/**
* Receive data from the specified socket.
*
* @param sfd socket file descriptor returned by usbmuxd_connect()
* @param data buffer to put the data to
* @param len number of bytes to receive
* @param recv_bytes number of bytes received
* @param timeout how many milliseconds to wait for data
*
* @return 0 on success, a negative errno value otherwise.
*/
int usbmuxd_recv_timeout(int sfd, char *data, uint32_t len, uint32_t *recv_bytes, unsigned int timeout);
/**
* Receive data from the specified socket with a default timeout.
*
* @param sfd socket file descriptor returned by usbmuxd_connect()
* @param data buffer to put the data to
* @param len number of bytes to receive
* @param recv_bytes number of bytes received
*
* @return 0 on success, a negative errno value otherwise.
*/
int usbmuxd_recv(int sfd, char *data, uint32_t len, uint32_t *recv_bytes);
#endif /* __USBMUXD_H */
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