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116 lines
2.5 KiB
C
116 lines
2.5 KiB
C
/* Copyright (C) 1991-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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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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int
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main (int argc, char **argv)
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{
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time_t t;
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register struct tm *tp;
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struct tm tbuf;
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int lose = 0;
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--argc;
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++argv;
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do
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{
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char buf[BUFSIZ];
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if (argc > 0)
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{
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static char buf[BUFSIZ];
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sprintf(buf, "TZ=%s", *argv);
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if (putenv(buf))
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{
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puts("putenv failed.");
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lose = 1;
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}
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else
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puts (buf);
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}
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tzset();
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tbuf.tm_year = 72;
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tbuf.tm_mon = 0;
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tbuf.tm_mday = 31;
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tbuf.tm_hour = 6;
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tbuf.tm_min = 14;
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tbuf.tm_sec = 50;
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tbuf.tm_isdst = -1;
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doit:;
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t = mktime(&tbuf);
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if (t == (time_t) -1)
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{
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puts("mktime() failed?");
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lose = 1;
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}
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tp = localtime(&t);
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if (tp == NULL)
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{
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puts("localtime() failed.");
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lose = 1;
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}
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else if (strftime(buf, sizeof(buf), "%a %b %d %X %Z %Y", tp) == 0)
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{
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puts("strftime() failed.");
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lose = 1;
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}
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else
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puts(buf);
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if (tbuf.tm_year == 101)
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{
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tbuf.tm_year = 97;
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tbuf.tm_mon = 0;
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goto doit;
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}
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++argv;
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} while (--argc > 0);
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{
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#define SIZE 256
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char buffer[SIZE];
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time_t curtime;
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struct tm *loctime;
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curtime = time (NULL);
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loctime = localtime (&curtime);
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fputs (asctime (loctime), stdout);
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strftime (buffer, SIZE, "Today is %A, %B %d.\n", loctime);
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fputs (buffer, stdout);
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strftime (buffer, SIZE, "The time is %I:%M %p.\n", loctime);
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fputs (buffer, stdout);
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loctime->tm_year = 72;
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loctime->tm_mon = 8;
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loctime->tm_mday = 12;
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loctime->tm_hour = 20;
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loctime->tm_min = 49;
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loctime->tm_sec = 05;
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curtime = mktime (loctime);
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strftime (buffer, SIZE, "%D %T was %w the %jth.\n", loctime);
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fputs (buffer, stdout);
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}
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return (lose ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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