forked from Imagelibrary/rtems
100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/**
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* @file
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*
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* @brief DATE Shell Command Implmentation
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*/
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/*
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* Copyright (C) 2001 Fernando Ruiz Casas <fruizcasas@gmail.com>
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* Copyright (C) 2008 Joel Sherrill <joel.sherrill@oarcorp.com>.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#define _XOPEN_SOURCE
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <time.h>
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#include <rtems.h>
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#include <rtems/shell.h>
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#include "internal.h"
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static int rtems_shell_main_date(
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int argc,
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char *argv[]
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)
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{
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/*
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* Print the current date and time in default format.
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*/
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if ( argc == 1 ) {
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time_t t;
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time(&t);
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printf("%s", ctime(&t));
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return 0;
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}
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/*
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* Set the current date and time
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*/
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if ( argc == 3 ) {
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char buf[128];
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struct tm TOD;
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struct timespec timesp;
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char *result;
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snprintf( buf, sizeof(buf), "%s %s", argv[1], argv[2] );
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result = strptime(
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buf,
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"%Y-%m-%d %T",
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&TOD
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);
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if ( result && !*result ) {
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timesp.tv_sec = mktime( &TOD );
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timesp.tv_nsec = 0;
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clock_settime( CLOCK_REALTIME, ×p );
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return 0;
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}
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}
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fprintf( stderr, "%s: Usage: [YYYY-MM-DD HH:MM:SS]\n", argv[0] );
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return -1;
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}
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rtems_shell_cmd_t rtems_shell_DATE_Command = {
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"date", /* name */
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"date [YYYY-MM-DD HH:MM:SS]", /* usage */
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"misc", /* topic */
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rtems_shell_main_date, /* command */
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NULL, /* alias */
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NULL /* next */
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};
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