1 /*
2 * Redistribution and use in source and binary forms, with or without modification,
3 * are permitted provided that the following conditions are met:
4 *
5 * 1. Redistributions of source code must retain the above copyright notice,
6 * this list of conditions and the following disclaimer.
7 * 2. Redistributions in binary form must reproduce the above copyright notice,
8 * this list of conditions and the following disclaimer in the documentation
9 * and/or other materials provided with the distribution.
10 * 3. The name of the author may not be used to endorse or promote products
11 * derived from this software without specific prior written permission.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
16 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
17 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
18 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
19 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
20 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
21 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
22 * OF SUCH DAMAGE.
23 *
24 * This file is part of the lwIP TCP/IP stack.
25 *
26 * Author: Dirk Ziegelmeier <dziegel@gmx.de>
27 *
28 */
29
30 #include <time.h>
31
32 #include "lwip/opt.h"
33 #include "lwip/apps/sntp.h"
34 #include "sntp_example.h"
35 #include "lwip/netif.h"
36
37 void
sntp_set_system_time(u32_t sec)38 sntp_set_system_time(u32_t sec)
39 {
40 char buf[32];
41 struct tm current_time_val;
42 time_t current_time = (time_t)sec;
43
44 #if defined(_WIN32) || defined(WIN32)
45 localtime_s(¤t_time_val, ¤t_time);
46 #else
47 localtime_r(¤t_time, ¤t_time_val);
48 #endif
49
50 strftime(buf, sizeof(buf), "%d.%m.%Y %H:%M:%S", ¤t_time_val);
51 LWIP_PLATFORM_DIAG(("SNTP time: %s\n", buf));
52 }
53
54 void
sntp_example_init(void)55 sntp_example_init(void)
56 {
57 sntp_setoperatingmode(SNTP_OPMODE_POLL);
58 #if LWIP_DHCP
59 sntp_servermode_dhcp(1); /* get SNTP server via DHCP */
60 #else /* LWIP_DHCP */
61 #if LWIP_IPV4
62 sntp_setserver(0, netif_ip_gw4(netif_default));
63 #endif /* LWIP_IPV4 */
64 #endif /* LWIP_DHCP */
65 sntp_init();
66 }
67