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/*
* idevicedate.c
* Simple utility to get and set the clock on a device
*
* Copyright (c) 2011 Martin Szulecki All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#if HAVE_LANGINFO_CODESET
#include <langinfo.h>
#endif
#include <libimobiledevice/libimobiledevice.h>
#include <libimobiledevice/lockdown.h>
#ifdef _DATE_FMT
#define DATE_FMT_LANGINFO() nl_langinfo (_DATE_FMT)
#else
#define DATE_FMT_LANGINFO() ""
#endif
static void print_usage(int argc, char **argv)
{
char *name = NULL;
name = strrchr(argv[0], '/');
printf("Usage: %s [OPTIONS]\n", (name ? name + 1: argv[0]));
printf("Display the current date or set it on a device.\n\n");
printf("NOTE: Setting the time on iOS 6 and later is only supported\n");
printf(" in the setup wizard screens before device activation.\n\n");
printf(" -d, --debug\t\tenable communication debugging\n");
printf(" -u, --udid UDID\ttarget specific device by its 40-digit device UDID\n");
printf(" -s, --set TIMESTAMP\tset UTC time described by TIMESTAMP\n");
printf(" -c, --sync\t\tset time of device to current system time\n");
printf(" -h, --help\t\tprints usage information\n");
printf("\n");
}
int main(int argc, char *argv[])
{
lockdownd_client_t client = NULL;
idevice_t device = NULL;
idevice_error_t ret = IDEVICE_E_UNKNOWN_ERROR;
int i;
const char* udid = NULL;
time_t setdate = 0;
plist_t node = NULL;
int node_type = -1;
uint64_t datetime = 0;
time_t rawtime;
struct tm * tmp;
char const *format = NULL;
char buffer[80];
int result = 0;
/* parse cmdline args */
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "-d") || !strcmp(argv[i], "--debug")) {
idevice_set_debug_level(1);
continue;
}
else if (!strcmp(argv[i], "-u") || !strcmp(argv[i], "--udid")) {
i++;
if (!argv[i] || (strlen(argv[i]) != 40)) {
print_usage(argc, argv);
return 0;
}
udid = argv[i];
continue;
}
else if (!strcmp(argv[i], "-s") || !strcmp(argv[i], "--set")) {
i++;
if (!argv[i] || (strlen(argv[i]) <= 1)) {
print_usage(argc, argv);
return 0;
}
setdate = atoi(argv[i]);
if (setdate == 0) {
printf("ERROR: Invalid timestamp value.\n");
print_usage(argc, argv);
return 0;
}
continue;
}
else if (!strcmp(argv[i], "-c") || !strcmp(argv[i], "--sync")) {
i++;
/* get current time */
setdate = time(NULL);
/* convert it to local time which sets timezone/daylight variables */
tmp = localtime(&setdate);
/* recalculate to make it UTC */
setdate = mktime(tmp);
continue;
}
else if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help")) {
print_usage(argc, argv);
return 0;
}
else {
print_usage(argc, argv);
return 0;
}
}
/* determine a date format */
if (!format) {
format = DATE_FMT_LANGINFO ();
if (!*format) {
format = "%a %b %e %H:%M:%S %Z %Y";
}
}
ret = idevice_new(&device, udid);
if (ret != IDEVICE_E_SUCCESS) {
if (udid) {
printf("No device found with udid %s, is it plugged in?\n", udid);
} else {
printf("No device found, is it plugged in?\n");
}
return -1;
}
if (LOCKDOWN_E_SUCCESS != lockdownd_client_new_with_handshake(device, &client, "idevicedate")) {
result = -1;
goto cleanup;
}
if(lockdownd_get_value(client, NULL, "TimeIntervalSince1970", &node) != LOCKDOWN_E_SUCCESS) {
fprintf(stderr, "ERROR: Unable to retrieve 'TimeIntervalSince1970' node from device.\n");
result = -1;
goto cleanup;
}
if (node == NULL) {
fprintf(stderr, "ERROR: Empty node for 'TimeIntervalSince1970' received.\n");
result = -1;
goto cleanup;
}
node_type = plist_get_node_type(node);
/* get or set? */
if (setdate == 0) {
/* get time value from device */
switch (node_type) {
case PLIST_UINT:
plist_get_uint_val(node, &datetime);
break;
case PLIST_REAL:
{
double rv = 0;
plist_get_real_val(node, &rv);
datetime = rv;
}
break;
default:
fprintf(stderr, "ERROR: Unexpected node type for 'TimeIntervalSince1970'\n");
break;
}
plist_free(node);
node = NULL;
/* date/time calculations */
rawtime = (time_t)datetime;
tmp = localtime(&rawtime);
/* finally we format and print the current date */
strftime(buffer, 80, format, tmp);
puts(buffer);
} else {
datetime = setdate;
plist_free(node);
node = NULL;
switch (node_type) {
case PLIST_UINT:
node = plist_new_uint(datetime);
break;
case PLIST_REAL:
node = plist_new_real((double)datetime);
break;
default:
fprintf(stderr, "ERROR: Unexpected node type for 'TimeIntervalSince1970'\n");
break;
}
if(lockdownd_set_value(client, NULL, "TimeIntervalSince1970", node) == LOCKDOWN_E_SUCCESS) {
tmp = localtime(&setdate);
strftime(buffer, 80, format, tmp);
puts(buffer);
} else {
printf("ERROR: Failed to set date on device.\n");
}
node = NULL;
}
cleanup:
if (client)
lockdownd_client_free(client);
if (device)
idevice_free(device);
return result;
}
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