forked from Imagelibrary/rtems
68baf9eead
Many files in this directory were by persons and organizations that have previously given relicensing permission. git history was used to confirm authorship and contributions on files which had unclear or missing copyrights. Update #3053.
102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @brief DATE Shell Command Implementation
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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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