| 1 | /* Copyright (C) 1991, 1992, 1994, 1997 Free Software Foundation, Inc.
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| 2 | This file is part of the GNU C Library.
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| 3 |
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| 4 | The GNU C Library is free software; you can redistribute it and/or
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| 5 | modify it under the terms of the GNU Lesser General Public
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| 6 | License as published by the Free Software Foundation; either
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| 7 | version 2.1 of the License, or (at your option) any later version.
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| 8 |
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| 9 | The GNU C Library is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 12 | Lesser General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU Lesser General Public
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| 15 | License along with the GNU C Library; if not, write to the Free
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| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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| 17 | 02111-1307 USA. */
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| 18 |
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| 19 | #include <stdio.h>
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| 20 | #include <stdlib.h>
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| 21 | #include <time.h>
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| 22 |
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| 23 |
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| 24 | int
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| 25 | main (int argc, char **argv)
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| 26 | {
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| 27 | time_t t;
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| 28 | register struct tm *tp;
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| 29 | struct tm tbuf;
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| 30 | int lose = 0;
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| 31 |
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| 32 | --argc;
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| 33 | ++argv;
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| 34 |
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| 35 | do
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| 36 | {
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| 37 | char buf[BUFSIZ];
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| 38 | if (argc > 0)
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| 39 | {
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| 40 | static char buf[BUFSIZ];
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| 41 | sprintf(buf, "TZ=%s", *argv);
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| 42 | if (putenv(buf))
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| 43 | {
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| 44 | puts("putenv failed.");
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| 45 | lose = 1;
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| 46 | }
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| 47 | else
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| 48 | puts (buf);
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| 49 | }
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| 50 | tzset();
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| 51 | tbuf.tm_year = 72;
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| 52 | tbuf.tm_mon = 0;
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| 53 | tbuf.tm_mday = 31;
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| 54 | tbuf.tm_hour = 6;
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| 55 | tbuf.tm_min = 14;
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| 56 | tbuf.tm_sec = 50;
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| 57 | tbuf.tm_isdst = -1;
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| 58 | doit:;
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| 59 | t = mktime(&tbuf);
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| 60 | if (t == (time_t) -1)
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| 61 | {
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| 62 | puts("mktime() failed?");
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| 63 | lose = 1;
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| 64 | }
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| 65 | tp = localtime(&t);
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| 66 | if (tp == NULL)
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| 67 | {
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| 68 | puts("localtime() failed.");
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| 69 | lose = 1;
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| 70 | }
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| 71 | else if (strftime(buf, sizeof(buf), "%a %b %d %X %Z %Y", tp) == 0)
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| 72 | {
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| 73 | puts("strftime() failed.");
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| 74 | lose = 1;
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| 75 | }
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| 76 | else
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| 77 | puts(buf);
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| 78 | if (tbuf.tm_year == 101)
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| 79 | {
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| 80 | tbuf.tm_year = 97;
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| 81 | tbuf.tm_mon = 0;
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| 82 | goto doit;
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| 83 | }
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| 84 | ++argv;
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| 85 | } while (--argc > 0);
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| 86 |
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| 87 | {
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| 88 | #define SIZE 256
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| 89 | char buffer[SIZE];
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| 90 | time_t curtime;
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| 91 | struct tm *loctime;
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| 92 |
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| 93 | curtime = time (NULL);
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| 94 |
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| 95 | loctime = localtime (&curtime);
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| 96 |
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| 97 | fputs (asctime (loctime), stdout);
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| 98 |
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| 99 | strftime (buffer, SIZE, "Today is %A, %B %d.\n", loctime);
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| 100 | fputs (buffer, stdout);
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| 101 | strftime (buffer, SIZE, "The time is %I:%M %p.\n", loctime);
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| 102 | fputs (buffer, stdout);
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| 103 |
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| 104 | loctime->tm_year = 72;
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| 105 | loctime->tm_mon = 8;
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| 106 | loctime->tm_mday = 12;
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| 107 | loctime->tm_hour = 20;
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| 108 | loctime->tm_min = 49;
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| 109 | loctime->tm_sec = 05;
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| 110 | curtime = mktime (loctime);
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| 111 | strftime (buffer, SIZE, "%D %T was %w the %jth.\n", loctime);
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| 112 | fputs (buffer, stdout);
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| 113 | }
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| 114 |
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| 115 | return (lose ? EXIT_FAILURE : EXIT_SUCCESS);
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| 116 | }
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