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sbase/date.c
Connor Lane Smith 416a068df6 fix head manpage
2011-05-25 11:56:04 +01:00

36 lines
710 B
C

/* See LICENSE file for copyright and license details. */
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include "util.h"
int
main(int argc, char *argv[])
{
char buf[BUFSIZ], c;
char *end, *fmt = "%c";
struct tm *now = NULL;
time_t t;
t = time(NULL);
while((c = getopt(argc, argv, "d:")) != -1)
switch(c) {
case 'd':
t = strtol(optarg, &end, 0);
if(*end != '\0')
eprintf("%s: not a number\n", optarg);
break;
default:
exit(EXIT_FAILURE);
}
if(optind < argc && argv[optind][0] == '+')
fmt = &argv[optind][1];
if(!(now = localtime(&t)))
eprintf("localtime failed\n");
strftime(buf, sizeof buf, fmt, now);
puts(buf);
return EXIT_SUCCESS;
}