glibc/time/date.c

50 lines
1.5 KiB
C

/* Copyright (C) 1991 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
/* Prints the date in the form "Day Mon dd hh:mm:ss ZZZ yyyy\n".
A simple test for localtime and strftime. */
int
DEFUN(main, (argc, argv), int argc AND char **argv)
{
time_t t = time(NULL);
register struct tm *tp = localtime(&t);
register char good = tp != NULL;
if (good)
{
char buf[BUFSIZ];
good = strftime(buf, sizeof(buf), "%a %b %d %X %Z %Y", tp);
if (good)
puts(buf);
else
perror("strftime");
}
else
perror("localtime");
exit(good ? EXIT_SUCCESS : EXIT_FAILURE);
return(good ? EXIT_SUCCESS : EXIT_FAILURE);
}