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c06335b71b
Previously `shell_commands` was a "catch-all" module that included shell commands for each and every used module that has a shell companion. Instead, the new `shell_cmds` module is now used to provide shell commands as individually selectable submodules, e.g. `cmd_gnrc_icmpv6_echo` now provides the ICMPv6 echo command (a.k.a. ping). To still have a "catch all" module to pull in shell commands of modules already used, `shell_cmds_default` was introduced. `shell_commands` depends now on `shell_cmds_default` for backward compatibility, but has been deprecated. New apps should use `shell_cmds_default` instead. For a handful of shell commands individual selection was already possible. Those modules now depend on the corresponding `cmd_%` module and they have been deprecated.
107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
/*
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* Copyright (C) 2016 Luminița Lăzărescu <cluminita.lazarescu@gmail.com>
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* 2017 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup sys_shell_commands
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* @{
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*
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* @file
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* @brief Prints the real time offset from the system time
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*
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* @author Luminița Lăzărescu <cluminita.lazarescu@gmail.com>
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* @author Martine Lenders <m.lenders@fu-berlin.de>
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*/
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#include <stdio.h>
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#include <time.h>
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#include "net/af.h"
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#include "net/gnrc/netif.h"
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#include "net/ipv6/addr.h"
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#include "net/ntp_packet.h"
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#include "net/sntp.h"
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#include "shell.h"
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#include "timex.h"
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#define _DEFAULT_TIMEOUT (500000LU)
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static void _usage(char *cmd)
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{
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printf("Usage: %s <server addr>[%%<interface>] [<timeout in us>]\n", cmd);
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printf("default: timeout = %lu\n", _DEFAULT_TIMEOUT);
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}
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static int _ntpdate(int argc, char **argv)
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{
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uint32_t timeout = _DEFAULT_TIMEOUT;
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if (argc < 2) {
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_usage(argv[0]);
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return 1;
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}
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sock_udp_ep_t server = { .port = NTP_PORT, .family = AF_INET6 };
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ipv6_addr_t *addr = (ipv6_addr_t *)&server.addr;
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char *iface = ipv6_addr_split_iface(argv[1]);
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kernel_pid_t src_iface = iface ? atoi(iface) : KERNEL_PID_UNDEF;
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if (ipv6_addr_from_str(addr, argv[1]) == NULL) {
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puts("error: malformed address");
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return 1;
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}
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if (ipv6_addr_is_link_local(addr) || (src_iface != KERNEL_PID_UNDEF)) {
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size_t ifnum = gnrc_netif_numof();
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if (src_iface == KERNEL_PID_UNDEF) {
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if (ifnum == 1) {
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src_iface = gnrc_netif_iter(NULL)->pid;
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}
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else {
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puts("error: link local target needs interface parameter (use \"<address>%<ifnum>\")\n");
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return 1;
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}
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}
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else {
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if (gnrc_netif_get_by_pid(src_iface) == NULL) {
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printf("error: %"PRIkernel_pid" is not a valid interface.\n", src_iface);
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return 1;
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}
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}
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server.netif = src_iface;
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}
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if (argc > 2) {
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timeout = atoi(argv[2]);
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}
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if (sntp_sync(&server, timeout) < 0) {
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puts("Error in synchronization");
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return 1;
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}
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#if defined(MODULE_NEWLIB) || defined(MODULE_PICOLIBC)
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struct tm *tm;
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time_t time = (time_t)(sntp_get_unix_usec() / US_PER_SEC);
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tm = gmtime(&time);
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printf("%04i-%02i-%02i %02i:%02i:%02i UTC (%i us)\n",
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tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
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tm->tm_hour, tm->tm_min, tm->tm_sec,
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(int)sntp_get_offset());
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#else
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uint64_t time = sntp_get_unix_usec();
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printf("%" PRIu32 ".%" PRIu32 " (%i us)\n",
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(uint32_t)(time / US_PER_SEC),
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(uint32_t)(time / US_PER_SEC),
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(int)sntp_get_offset());
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#endif
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return 0;
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}
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SHELL_COMMAND(ntpdate, "synchronizes with a remote time server", _ntpdate);
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