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system/ntpc: Add ntpcstatus command

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An example output:

    nsh> ntpcstatus
    The number of last samples: 5
    [0] srv 178.16.23.50 offset -0.014006560 delay 0.349967444
    [1] srv 5.9.57.158 offset 0.001792161 delay 0.269991633
    [2] srv 206.75.147.25 offset 0.009916600 delay 0.129989672
    [3] srv 162.159.200.1 offset 0.011508908 delay 0.019917401
    [4] srv 185.19.184.35 offset 0.021468135 delay 0.239915030
    nsh>
This commit is contained in:
YAMAMOTO Takashi 2021-02-16 15:52:43 +09:00 committed by Xiang Xiao
parent 8ae1267054
commit a63bdcbacb
2 changed files with 127 additions and 2 deletions
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4
system/ntpc/Makefile
View File

@ -37,13 +37,13 @@ include $(APPDIR)/Make.defs
# NTPC address renewal built-in application info
PROGNAME = ntpcstart ntpcstop
PROGNAME = ntpcstart ntpcstop ntpcstatus
PRIORITY = $(CONFIG_SYSTEM_NTPC_PRIORITY)
STACKSIZE = $(CONFIG_SYSTEM_NTPC_STACKSIZE)
MODULE = $(CONFIG_SYSTEM_NTPC)
# NTPC address renewal
MAINSRC = ntpcstart_main.c ntpcstop_main.c
MAINSRC = ntpcstart_main.c ntpcstop_main.c ntpcstatus_main.c
include $(APPDIR)/Application.mk

125
system/ntpc/ntpcstatus_main.c Normal file
View File

@ -0,0 +1,125 @@
/****************************************************************************
* 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)
{
FAR const char *sign;
uint64_t absts;
if (ts < 0)
{
sign = "-";
absts = -ts;
}
else
{
sign = "";
absts = ts;
}
sprintf(buf, "%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);
format_ntptimestamp(status.samples[i].delay, delay_buf);
printf("[%u] srv %s offset %s delay %s\n",
i, name, offset_buf, delay_buf);
}
return EXIT_SUCCESS;
}