128 lines
3.7 KiB
C
128 lines
3.7 KiB
C
/****************************************************************************
|
|
* apps/system/ntpc/ntpc_status.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <inttypes.h>
|
|
#ifdef CONFIG_LIBC_NETDB
|
|
#include <netdb.h>
|
|
#endif
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
#include "netutils/ntpclient.h"
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/* "-", uint64_t, ".", 9 digits fraction part, NUL */
|
|
|
|
#define NTP_TIME_STR_MAX_LEN (1 + 21 + 1 + 9 + 1)
|
|
|
|
static void
|
|
format_ntptimestamp(int64_t ts, FAR char *buf, size_t len)
|
|
{
|
|
FAR const char *sign;
|
|
uint64_t absts;
|
|
|
|
if (ts < 0)
|
|
{
|
|
sign = "-";
|
|
absts = -ts;
|
|
}
|
|
else
|
|
{
|
|
sign = "";
|
|
absts = ts;
|
|
}
|
|
|
|
snprintf(buf, len, "%s%" PRIu64 ".%09" PRIu64,
|
|
sign, absts >> 32,
|
|
((absts & 0xffffffff) * NSEC_PER_SEC) >> 32);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* ntpcstatus_main
|
|
****************************************************************************/
|
|
|
|
int main(int argc, FAR char *argv[])
|
|
{
|
|
struct ntpc_status_s status;
|
|
unsigned int i;
|
|
int ret;
|
|
|
|
ret = ntpc_status(&status);
|
|
if (ret < 0)
|
|
{
|
|
fprintf(stderr, "ERROR: ntpc_status() failed\n");
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
printf("The number of last samples: %u\n", status.nsamples);
|
|
for (i = 0; i < status.nsamples; i++)
|
|
{
|
|
FAR const struct sockaddr *sa;
|
|
socklen_t salen;
|
|
FAR const char *name = "<noname>";
|
|
char offset_buf[NTP_TIME_STR_MAX_LEN];
|
|
char delay_buf[NTP_TIME_STR_MAX_LEN];
|
|
|
|
sa = status.samples[i].srv_addr;
|
|
salen = (sa->sa_family == AF_INET) ? sizeof(struct sockaddr_in)
|
|
: sizeof(struct sockaddr_in6);
|
|
#ifdef CONFIG_LIBC_NETDB
|
|
char hbuf[NI_MAXHOST];
|
|
|
|
ret = getnameinfo(sa, salen,
|
|
hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST);
|
|
if (ret == 0)
|
|
{
|
|
name = hbuf;
|
|
}
|
|
else
|
|
{
|
|
fprintf(stderr, "WARNING: getnameinfo failed: %s\n",
|
|
gai_strerror(ret));
|
|
}
|
|
#endif
|
|
|
|
format_ntptimestamp(status.samples[i].offset,
|
|
offset_buf, sizeof(offset_buf));
|
|
format_ntptimestamp(status.samples[i].delay,
|
|
delay_buf, sizeof(delay_buf));
|
|
printf("[%u] srv %s offset %s delay %s\n",
|
|
i, name, offset_buf, delay_buf);
|
|
}
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|