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47 lines
788 B
C
47 lines
788 B
C
/* See LICENSE file for copyright and license details. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#include "util.h"
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static void
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usage(void)
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{
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eprintf("usage: %s [-u] [-d format] [+FORMAT]\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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char buf[BUFSIZ];
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char *fmt = "%c";
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struct tm *now = NULL;
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struct tm *(*tztime)(const time_t *) = localtime;
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const char *tz = "local";
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time_t t;
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t = time(NULL);
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ARGBEGIN {
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case 'd':
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t = estrtol(EARGF(usage()), 0);
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break;
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case 'u':
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tztime = gmtime;
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tz = "gm";
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break;
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default:
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usage();
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} ARGEND;
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if(argc > 0 && argv[0][0] == '+')
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fmt = &argv[0][1];
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if(!(now = tztime(&t)))
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eprintf("%stime failed\n", tz);
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strftime(buf, sizeof buf, fmt, now);
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puts(buf);
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return EXIT_SUCCESS;
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}
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