diff options
Diffstat (limited to 'usbmuxd.c')
| -rw-r--r-- | usbmuxd.c | 855 |
1 files changed, 0 insertions, 855 deletions
diff --git a/usbmuxd.c b/usbmuxd.c deleted file mode 100644 index 0f4339c..0000000 --- a/usbmuxd.c +++ /dev/null @@ -1,855 +0,0 @@ -/* - * usbmuxd -- daemon for communication with iPhone/iPod via USB - * - * Copyright (c) 2009 Nikias Bassen. All Rights Reserved. - * Based upon iTunnel source code, Copyright (c) 2008 Jing Su. - * http://www.cs.toronto.edu/~jingsu/itunnel/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ -#include <stddef.h> -#include <stdio.h> -#include <errno.h> -#include <stdlib.h> -#include <string.h> -#include <sys/socket.h> -#include <sys/un.h> -#include <sys/stat.h> -#include <arpa/inet.h> -#include <unistd.h> -#include <signal.h> -#include <pthread.h> -#include <stdint.h> -#include <usb.h> - -#include "usbmuxd.h" -#include "sock_stuff.h" - -#include "iphone.h" - -#define SOCKET_FILE "/var/run/usbmuxd" - -#define DEFAULT_TIMEOUT 4000 -#define DEFAULT_CHILDREN_CAPACITY 10 - -static int quit_flag = 0; -static int fsock = -1; - -struct device_use_info { - uint32_t device_id; - iphone_device_t phone; - int use_count; -}; - -struct client_data { - volatile int dead; - int socket; - int tag; - pthread_t thread; - pthread_t handler; - pthread_t reader; - int reader_quit; - int reader_dead; - int handler_dead; - iphone_umux_client_t muxclient; - struct device_use_info *duinfo; -}; - -static struct device_use_info **device_use_list = NULL; -static int device_use_count = 0; -static pthread_mutex_t usbmux_mutex = PTHREAD_MUTEX_INITIALIZER; - -/** - * mutex for mutual exclusion of calling the iphone_mux_send function - * TODO: I don't know if we really need this? - */ -static pthread_mutex_t writer_mutex = PTHREAD_MUTEX_INITIALIZER; - -/** - * mutex to keep the reader threads from reading partial packages - */ -static pthread_mutex_t reader_mutex = PTHREAD_MUTEX_INITIALIZER; - -#ifdef DEBUG -/** - * for debugging purposes. - */ -static void print_buffer(const char *data, const int length) -{ - int i; - int j; - unsigned char c; - - for(i=0; i<length; i+=16) { - printf("%04x: ", i); - for (j=0;j<16;j++) { - if (i+j >= length) { - printf(" "); - continue; - } - printf("%02hhx ", *(data+i+j)); - } - printf(" | "); - for(j=0;j<16;j++) { - if (i+j >= length) - break; - c = *(data+i+j); - if ((c < 32) || (c > 127)) { - printf("."); - continue; - } - printf("%c", c); - } - printf("\n"); - } - printf("\n"); -} -#endif - -/** - * Read incoming usbmuxd packet. If the packet is larger than - * the size specified by len, the data will be truncated. - * - * @param fd the file descriptor to read from. - * @param data pointer to a buffer to store the read data to. - * @param len the length of the data to be read. The buffer - * pointed to by data should be at least len bytes in size. - * - * @return - */ -static int usbmuxd_get_request(int fd, void *data, size_t len) -{ - uint32_t pktlen; - int recv_len; - - if (peek_buf(fd, &pktlen, sizeof(pktlen)) < sizeof(pktlen)) { - return -errno; - } - - if (len < pktlen) { - // target buffer is to small to hold this packet! fix it! - fprintf(stderr, "%s: WARNING -- packet (%d) is larger than target buffer (%d)! Truncating.\n", __func__, pktlen, len); - pktlen = len; - } - - recv_len = recv_buf(fd, data, pktlen); - if ((recv_len > 0) && (recv_len < pktlen)) { - fprintf(stderr, "%s: Uh-oh, we got less than the packet's size, %d instead of %d...\n", __func__, recv_len, pktlen); - } - - return recv_len; -} - -/** - * Send a usbmuxd result packet with given tag and result_code. - * - * @param fd the file descriptor to write to. - * @param tag the tag value that identifies where this message belongs to. - * @param result_code the error value (0 = Success, most likely errno values otherwise) - * - * @return the return value returned by send_buf (normally the number of bytes sent) - */ -static int usbmuxd_send_result(int fd, uint32_t tag, uint32_t result_code) -{ - struct usbmux_result res; - - res.header.length = sizeof(res); - res.header.reserved = 0; - res.header.type = usbmux_result; - res.header.tag = tag; - res.result = result_code; - - fprintf(stderr, "%s: tag=%d result=%d\n", __func__, res.header.tag, res.result); - - return send_buf(fd, &res, sizeof(res)); -} - -/** - * this thread reads from the usb connection and writes the - * data to the connected client. - * - * @param arg pointer to a client_data structure. - * - * @return NULL in any case - */ -static void *usbmuxd_client_reader_thread(void *arg) -{ - struct client_data *cdata; - - char rbuffer[512]; - uint32_t rbuffersize = 512; - uint32_t rlen; - iphone_error_t err; - char *cursor; - ssize_t len; - int result; - - if (!arg) { - fprintf(stderr, "%s: invalid client_data supplied!\n", __func__); - cdata->reader_dead = 1; - return NULL; - } - - cdata = (struct client_data*)arg; - - cdata->reader_dead = 0; - - fprintf(stdout, "%s[%d:%d]: started\n", __func__, cdata->duinfo->device_id, cdata->duinfo->use_count); - - while (!quit_flag && !cdata->reader_quit) { - result = check_fd(cdata->socket, fdwrite, DEFAULT_TIMEOUT); - if (result <= 0) { - if (result < 0) { - fprintf(stderr, "%s: select error: %s\n", __func__, strerror(errno)); - } - continue; - } - - rlen = 0; - //pthread_mutex_lock(&usbmux_mutex); - err = iphone_mux_recv_timeout(cdata->muxclient, rbuffer, rbuffersize, &rlen, DEFAULT_TIMEOUT); - //pthread_mutex_unlock(&usbmux_mutex); - if (err != 0) { - fprintf(stderr, "%s[%d:%d]: encountered USB read error: %d\n", __func__, cdata->duinfo->device_id, cdata->duinfo->use_count, err); - break; - } - - cursor = rbuffer; - while (rlen > 0) { - len = send_buf(cdata->socket, cursor, rlen); - // calculate remainder - rlen -= len; - // advance cursor - cursor += len; - } - fsync(cdata->socket); - } - - fprintf(stdout, "%s[%d:%d]: terminated\n", __func__, cdata->duinfo->device_id, cdata->duinfo->use_count); - - cdata->reader_dead = 1; - - return NULL; -} - -/** - * This function handles the connecting procedure to a previously - * set up usbmux client. - * Sends a usbmuxd result packet denoting success or failure. - * A successful result is mandatory for later communication. - * - * @param cdata pointer to a previously initialized client_data structure - * - * @return - */ -static int usbmuxd_handleConnectResult(struct client_data *cdata) -{ - int result; - char buffer[512]; - char err_type[64]; - int err_code; - ssize_t maxlen = 512; - uint32_t rlen; - iphone_error_t err; - - if (!cdata) { - fprintf(stderr, "%s: Invalid client_data provided!\n", __func__); - return -EINVAL; - } - - result = check_fd(cdata->socket, fdwrite, DEFAULT_TIMEOUT); - if (result <= 0) { - if (result < 0) { - fprintf(stderr, "%s: select error: %s\n", __func__, strerror(errno)); - return result; - } - } else { - result = 0; - err = iphone_mux_recv_timeout(cdata->muxclient, buffer, maxlen, &rlen, DEFAULT_TIMEOUT); - if (err != 0) { - fprintf(stderr, "%s: encountered USB read error: %d\n", __func__, err); - usbmuxd_send_result(cdata->socket, cdata->tag, -err); - return err; - } else { - if (rlen > 0) { - if ((buffer[0] == 1) && (rlen > 20) && !memcmp(buffer+1, "handleConnectResult:", 20)) { - // hm... we got an error message! - buffer[rlen] = 0; - fprintf(stderr, "%s: %s\n", __func__, buffer+22); - - if (sscanf(buffer+22, "%s - %d\n", err_type, &err_code) == 2) { - usbmuxd_send_result(cdata->socket, cdata->tag, err_code); - return -err_code; - } else { - usbmuxd_send_result(cdata->socket, cdata->tag, ENODATA); - return -ENODATA; - } - } else { - // send success result - usbmuxd_send_result(cdata->socket, cdata->tag, 0); - // and the server greeting message - send_buf(cdata->socket, buffer, rlen); - } - } else { - // no server greeting? this seems to be ok. send success. - usbmuxd_send_result(cdata->socket, cdata->tag, 0); - } - } - //fsync(cdata->socket); - } - return result; -} - -/** - * This thread handles the communication between the connected iPhone/iPod - * and the client that created the connection. - */ -static void *usbmuxd_client_handler_thread(void *arg) -{ - struct client_data *cdata; - int result; - char *cursor; - char buffer[1024]; - ssize_t len; - ssize_t maxlen = sizeof(buffer); - uint32_t wlen; - iphone_error_t err; - - if (!arg) { - fprintf(stderr, "%s: invalid client_data provided!\n", __func__); - return NULL; - } - - cdata = (struct client_data*)arg; - - fprintf(stdout, "%s[%d:%d]: started\n", __func__, cdata->duinfo->device_id,cdata->duinfo->use_count); - - if (usbmuxd_handleConnectResult(cdata)) { - goto leave; - } - - // starting mux reader thread - cdata->reader_quit = 0; - cdata->reader_dead = 0; - if (pthread_create(&cdata->reader, NULL, usbmuxd_client_reader_thread, cdata) != 0) { - fprintf(stderr, "%s: could not start client_reader thread\n", __func__); - cdata->reader = 0; - } - - while (!quit_flag && !cdata->reader_dead) { - result = check_fd(cdata->socket, fdread, DEFAULT_TIMEOUT); - if (result <= 0) { - if (result < 0) { - fprintf(stderr, "%s: Error: checkfd: %s\n", __func__, strerror(errno)); - } - continue; - } - - // check_fd told us there's data available, so read from client - // and push to USB device. - len = recv(cdata->socket, buffer, maxlen, 0); - if (len == 0) { - break; - } - if (len < 0) { - fprintf(stderr, "%s[%d:%d]: Error: recv: %s\n", __func__, cdata->duinfo->device_id, cdata->duinfo->use_count, strerror(errno)); - break; - } - - cursor = buffer; - - pthread_mutex_lock(&writer_mutex); - do { - wlen = 0; - err = iphone_mux_send(cdata->muxclient, cursor, len, &wlen); - if (err == IPHONE_E_TIMEOUT) { - // some kind of timeout... just be patient and retry. - } else if (err != IPHONE_E_SUCCESS) { - fprintf(stderr, "%s[%d:%d]: USB write error: %d\n", __func__, cdata->duinfo->device_id, cdata->duinfo->use_count, err); - len = -1; - break; - } - - // calculate remainder. - len -= wlen; - // advance cursor appropiately. - cursor += wlen; - } while ((len > 0) && !quit_flag); - pthread_mutex_unlock(&writer_mutex); - if (len < 0) { - break; - } - } - -leave: - // cleanup - fprintf(stdout, "%s[%d:%d]: terminating\n", __func__, cdata->duinfo->device_id, cdata->duinfo->use_count); - if (cdata->reader != 0) { - cdata->reader_quit = 1; - pthread_join(cdata->reader, NULL); - } - - cdata->handler_dead = 1; - - fprintf(stdout, "%s[%d:%d]: terminated\n", __func__, cdata->duinfo->device_id, cdata->duinfo->use_count); - return NULL; -} - -/** - * This thread is started when a new connection is accepted. - * It performs the handshake, then waits for the connect packet and - * on success it starts the usbmuxd_client_handler thread. - */ -static void *usbmuxd_client_init_thread(void *arg) -{ - struct client_data *cdata; - struct usbmux_header hello; - struct usbmux_dev_info_request dev_info_req; - struct usbmux_connect_request c_req; - - struct usb_bus *bus; - struct usb_device *dev; - - int recv_len; - int found = 0; - int res; - int i; - int sent_result; - iphone_error_t err; - - iphone_device_t phone; - struct device_use_info *cur_dev = NULL; - - if (!arg) { - fprintf(stderr, "%s: invalid client_data provided!\n", __func__); - return NULL; - } - - cdata = (struct client_data*)arg; - cdata->dead = 0; - - fprintf(stdout, "%s: started (fd=%d)\n", __func__, cdata->socket); - - if ((recv_len = usbmuxd_get_request(cdata->socket, &hello, sizeof(hello))) <= 0) { - fprintf(stderr, "%s: No Hello packet received, error %s\n", __func__, strerror(errno)); - goto leave; - } - - if ((recv_len == 16) && (hello.length == 16) - && (hello.reserved == 0) && (hello.type == usbmux_hello)) { - // send success response - usbmuxd_send_result(cdata->socket, hello.tag, 0); - } else { - // send error response and exit - fprintf(stderr, "%s: Invalid Hello packet received.\n", __func__); - // TODO is this required?! - usbmuxd_send_result(cdata->socket, hello.tag, EINVAL); - goto leave; - } - - // gather data about all iPhones/iPods attached - usb_init(); - usb_find_busses(); - usb_find_devices(); - - for (bus = usb_get_busses(); bus; bus = bus->next) { - for (dev = bus->devices; dev; dev = dev->next) { - if (dev->descriptor.idVendor == 0x05ac - && dev->descriptor.idProduct >= 0x1290 - && dev->descriptor.idProduct <= 0x1293) - { - fprintf(stdout, "%s: Found device on bus %d, id %d\n", __func__, bus->location, dev->devnum); - found++; - - // construct packet - memset(&dev_info_req, 0, sizeof(dev_info_req)); - dev_info_req.header.length = sizeof(dev_info_req); - dev_info_req.header.type = usbmux_device_info; - dev_info_req.dev_info.device_id = dev->devnum; - dev_info_req.dev_info.product_id = dev->descriptor.idProduct; - if (dev->descriptor.iSerialNumber) { - usb_dev_handle *udev; - //pthread_mutex_lock(&usbmux_mutex); - udev = usb_open(dev); - if (udev) { - usb_get_string_simple(udev, dev->descriptor.iSerialNumber, dev_info_req.dev_info.serial_number, sizeof(dev_info_req.dev_info.serial_number)+1); - usb_close(udev); - } - //pthread_mutex_unlock(&usbmux_mutex); - } - -#ifdef DEBUG - print_buffer((char*)&dev_info_req, sizeof(dev_info_req)); -#endif - - // send it - if (send_buf(cdata->socket, &dev_info_req, sizeof(dev_info_req)) <= 0) { - fprintf(stderr, "%s: Error: Could not send device info: %s\n", __func__, strerror(errno)); - found--; - } - } - } - } - - // now wait for connect request - if (found <= 0) { - fprintf(stderr, "%s: No attached iPhone/iPod devices found.\n", __func__); - goto leave; - } - - memset(&c_req, 0, sizeof(c_req)); - if ((recv_len = usbmuxd_get_request(cdata->socket, &c_req, sizeof(c_req))) <= 0) { - fprintf(stderr, "%s: Did not receive any connect request.\n", __func__); - goto leave; - } - - if (c_req.header.type != usbmux_connect) { - fprintf(stderr, "%s: Unexpected packet of type %d received.\n", __func__, c_req.header.type); - goto leave; - } - - fprintf(stdout, "%s: Setting up connection to usb device #%d on port %d\n", __func__, c_req.device_id, ntohs(c_req.port)); - - // find the device, and open usb connection - phone = NULL; - cur_dev = NULL; - // first check if we already have an open connection - if (device_use_list) { - pthread_mutex_lock(&usbmux_mutex); - for (i = 0; i < device_use_count; i++) { - if (device_use_list[i]) { - if (device_use_list[i]->device_id == c_req.device_id) { - device_use_list[i]->use_count++; - cur_dev = device_use_list[i]; - phone = cur_dev->phone; - break; - } - } - } - pthread_mutex_unlock(&usbmux_mutex); - } - if (!phone) { - // if not found, make a new connection - if (iphone_get_specific_device(0, c_req.device_id, &phone) != IPHONE_E_SUCCESS) { - fprintf(stderr, "%s: device_id %d could not be opened\n", __func__, c_req.device_id); - usbmuxd_send_result(cdata->socket, c_req.header.tag, ENODEV); - goto leave; - } - // add to device list - cur_dev = (struct device_use_info*)malloc(sizeof(struct device_use_info)); - memset(cur_dev, 0, sizeof(struct device_use_info)); - cur_dev->use_count = 1; - cur_dev->device_id = c_req.device_id; - cur_dev->phone = phone; - - fprintf(stdout, "%s: device_use_count = %d\n", __func__, device_use_count); - - pthread_mutex_lock(&usbmux_mutex); - device_use_list = (struct device_use_info**)realloc(device_use_list, sizeof(struct device_use_info*) * (device_use_count+1)); - if (device_use_list) { - device_use_list[device_use_count] = cur_dev; - device_use_count++; - } - pthread_mutex_unlock(&usbmux_mutex); - } else { - fprintf(stdout, "%s: reusing usb connection device_id %d\n", __func__, c_req.device_id); - } - - // setup connection to iPhone/iPod -// pthread_mutex_lock(&usbmux_mutex); - res = iphone_mux_new_client(cur_dev->phone, 0, ntohs(c_req.port), &(cdata->muxclient)); -// pthread_mutex_unlock(&usbmux_mutex); - - if (res != 0) { - usbmuxd_send_result(cdata->socket, c_req.header.tag, res); - fprintf(stderr, "%s: mux_new_client returned %d, aborting.\n", __func__, res); - goto leave; - } - - // start connection handler thread - cdata->handler_dead = 0; - cdata->tag = c_req.header.tag; - cdata->duinfo = cur_dev; - if (pthread_create(&cdata->handler, NULL, usbmuxd_client_handler_thread, cdata) != 0) { - fprintf(stderr, "%s: could not create usbmuxd_client_handler_thread!\n", __func__); - cdata->handler = 0; - goto leave; - } - - sent_result = 0; - - // start reading data from the connected device - while (!quit_flag && !cdata->handler_dead) { - pthread_mutex_lock(&reader_mutex); - iphone_mux_pullbulk(cur_dev->phone); - err = iphone_mux_get_error(cdata->muxclient); - pthread_mutex_unlock(&reader_mutex); - if (err != IPHONE_E_SUCCESS) { - break; - } - } - - if (!sent_result) { - //fprintf(stderr, "Sending error message %d tag %d\n", err, c_req.header.tag); - err = iphone_mux_get_error(cdata->muxclient); - //usbmuxd_send_result(cdata->socket, c_req.header.tag, err); - } - - fprintf(stdout, "%s: terminating\n", __func__); - - // wait for handler thread to finish its work - if (cdata->handler != 0) { - pthread_join(cdata->handler, NULL); - } - - // time to clean up - if (cdata && cdata->muxclient) { // should be non-NULL - iphone_mux_free_client(cdata->muxclient); - } - -leave: - // this has to be freed only if it's not in use anymore as it closes - // the USB connection - if (cur_dev) { - if (cur_dev->use_count > 1) { - cur_dev->use_count--; - } else { - iphone_free_device(cur_dev->phone); - cur_dev->use_count = 0; - free(cur_dev); - cur_dev = NULL; - pthread_mutex_lock(&usbmux_mutex); - if (device_use_count > 1) { - struct device_use_info **newlist; - int j; - - newlist = (struct device_use_info**)malloc(sizeof(struct device_use_info*) * device_use_count-1); - for (i = 0; i < device_use_count; i++) { - if (device_use_list[i] != NULL) { - newlist[j++] = device_use_list[i]; - } - } - free(device_use_list); - device_use_list = newlist; - } else { - free(device_use_list); - device_use_list = NULL; - } - pthread_mutex_unlock(&usbmux_mutex); - } - } - - cdata->dead = 1; - close(cdata->socket); - - fprintf(stdout, "%s: terminated\n", __func__); - - return NULL; -} - -/** - * make this program run detached from the current console - */ -static int daemonize() -{ - // TODO still to be implemented, also logging is missing! - return 0; -} - -/** - * signal handler function for cleaning up properly - */ -static void clean_exit(int sig) -{ - if (sig == SIGINT) { - fprintf(stdout, "CTRL+C pressed\n"); - } - quit_flag = 1; -} - -/** - * thread function that performs accept() and starts the required child - * threads to perform the rest of the communication stuff. - */ -static void *usbmuxd_accept_thread(void *arg) -{ - struct sockaddr_un c_addr; - socklen_t len = sizeof(struct sockaddr_un); - struct client_data *cdata; - struct client_data **children = NULL; - int children_capacity = DEFAULT_CHILDREN_CAPACITY; - int i = 0; - int result = 0; - int cnt; - - // Reserve space for 10 clients which should be enough. If not, the - // buffer gets enlarged later. - children = (struct client_data**)malloc(sizeof(struct client_data*) * children_capacity); - if (!children) { - fprintf(stderr, "%s: Out of memory when allocating memory for child threads. Terminating.\n", __func__); - exit(EXIT_FAILURE); - } - memset(children, 0, sizeof(struct client_data*) * children_capacity); - - fprintf(stdout, "%s: waiting for connection\n", __func__); - while (!quit_flag) { - // Check the file descriptor before accepting a connection. - // If no connection attempt is made, just repeat... - result = check_fd(fsock, fdread, 1000); - if (result <= 0) { - if (result == 0) { - // cleanup - for (i = 0; i < children_capacity; i++) { - if (children[i]) { - if (children[i]->dead != 0) { - pthread_join(children[i]->thread, NULL); - fprintf(stdout, "%s: reclaimed client thread (fd=%d)\n", __func__, children[i]->socket); - free(children[i]); - children[i] = NULL; - cnt++; - } else { - cnt = 0; - } - } else { - cnt++; - } - } - - if ((children_capacity > DEFAULT_CHILDREN_CAPACITY) - && ((children_capacity - cnt) <= DEFAULT_CHILDREN_CAPACITY)) { - children_capacity = DEFAULT_CHILDREN_CAPACITY; - children = realloc(children, sizeof(struct client_data*) * children_capacity); - } - continue; - } else { - fprintf(stderr, "select error: %s\n", strerror(errno)); - continue; - } - } - - cdata = (struct client_data*)malloc(sizeof(struct client_data)); - memset(cdata, 0, sizeof(struct client_data)); - if (!cdata) { - quit_flag = 1; - fprintf(stderr, "%s: Error: Out of memory! Terminating.\n", __func__); - break; - } - - cdata->socket = accept(fsock, (struct sockaddr*)&c_addr, &len); - if (cdata->socket < 0) { - free(cdata); - if (errno == EINTR) { - continue; - } else { - fprintf(stderr, "%s: Error in accept: %s\n", __func__, strerror(errno)); - continue; - } - } - - fprintf(stdout, "%s: new client connected (fd=%d)\n", __func__, cdata->socket); - - // create client thread: - if (pthread_create(&cdata->thread, NULL, usbmuxd_client_init_thread, cdata) == 0) { - for (i = 0; i < children_capacity; i++) { - if (children[i] == NULL) break; - } - if (i == children_capacity) { - // enlarge buffer - children_capacity++; - children = realloc(children, sizeof(struct client_data*) * children_capacity); - if (!children) { - fprintf(stderr, "%s: Out of memory when enlarging child thread buffer\n", __func__); - } - } - children[i] = cdata; - } else { - fprintf(stderr, "%s: Failed to create client_init_thread.\n", __func__); - close(cdata->socket); - free(cdata); - cdata = NULL; - } - } - - fprintf(stdout, "%s: terminating\n", __func__); - - // preparing for shutdown: wait for child threads to terminate (if any) - fprintf(stdout, "%s: waiting for child threads to terminate...\n", __func__); - for (i = 0; i < children_capacity; i++) { - if (children[i] != NULL) { - pthread_join(children[i]->thread, NULL); - free(children[i]); - } - } - - // delete the children set. - free(children); - children = NULL; - - fprintf(stdout, "%s: terminated.\n", __func__); - - return NULL; -} - -/** - * main function. - */ -int main(int argc, char **argv) -{ - int foreground = 1; - pthread_t acceptor; - - fprintf(stdout, "usbmuxd: starting\n"); - - // TODO: Parameter checking. - - fsock = create_unix_socket(SOCKET_FILE); - if (fsock < 0) { - fprintf(stderr, "Could not create socket, exiting\n"); - return -1; - } - - chmod(SOCKET_FILE, 0666); - - if (!foreground) { - if (daemonize() < 0) { - exit(EXIT_FAILURE); - } - } - - // signal(SIGHUP, reload_conf); // none yet - signal(SIGINT, clean_exit); - signal(SIGQUIT, clean_exit); - signal(SIGTERM, clean_exit); - signal(SIGPIPE, SIG_IGN); - - if (pthread_create(&acceptor, NULL, usbmuxd_accept_thread, NULL) != 0) { - fprintf(stderr, "Failed to create server thread.\n"); - close(fsock); - return -1; - } - - // Relax here. Just wait for the accept thread to terminate. - pthread_join(acceptor, NULL); - - fprintf(stdout, "usbmuxd: terminating\n"); - if (fsock >= 0) { - close(fsock); - } - - unlink(SOCKET_FILE); - - return 0; -} - |