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sbase/date.c

40 lines
769 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 *fmt = "%c";
struct tm *now = NULL;
struct tm *(*tztime)(const time_t *) = localtime;
const char *tz = "local";
time_t t;
t = time(NULL);
while((c = getopt(argc, argv, "d:u")) != -1)
switch(c) {
case 'd':
t = estrtol(optarg, 0);
break;
case 'u':
tztime = gmtime;
tz = "gm";
break;
default:
exit(EXIT_FAILURE);
}
if(optind < argc && argv[optind][0] == '+')
fmt = &argv[optind][1];
if(!(now = tztime(&t)))
eprintf("%stime failed\n", tz);
strftime(buf, sizeof buf, fmt, now);
puts(buf);
return EXIT_SUCCESS;
}