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b168057a | 1 | /* Copyright (C) 1991-2015 Free Software Foundation, Inc. |
c84142e8 | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
c84142e8 | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
28f540f4 | 8 | |
c84142e8 UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
28f540f4 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 | 17 | |
28f540f4 RM |
18 | #include <stdio.h> |
19 | #include <stdlib.h> | |
20 | #include <time.h> | |
21 | ||
22 | ||
23 | int | |
1fb05e3d | 24 | main (int argc, char **argv) |
28f540f4 RM |
25 | { |
26 | time_t t; | |
2e09a79a | 27 | struct tm *tp; |
28f540f4 RM |
28 | struct tm tbuf; |
29 | int lose = 0; | |
30 | ||
31 | --argc; | |
32 | ++argv; | |
33 | ||
34 | do | |
35 | { | |
36 | char buf[BUFSIZ]; | |
37 | if (argc > 0) | |
38 | { | |
39 | static char buf[BUFSIZ]; | |
40 | sprintf(buf, "TZ=%s", *argv); | |
41 | if (putenv(buf)) | |
42 | { | |
43 | puts("putenv failed."); | |
44 | lose = 1; | |
45 | } | |
46 | else | |
47 | puts (buf); | |
48 | } | |
49 | tzset(); | |
50 | tbuf.tm_year = 72; | |
51 | tbuf.tm_mon = 0; | |
52 | tbuf.tm_mday = 31; | |
53 | tbuf.tm_hour = 6; | |
54 | tbuf.tm_min = 14; | |
55 | tbuf.tm_sec = 50; | |
56 | tbuf.tm_isdst = -1; | |
57 | doit:; | |
58 | t = mktime(&tbuf); | |
59 | if (t == (time_t) -1) | |
60 | { | |
61 | puts("mktime() failed?"); | |
62 | lose = 1; | |
63 | } | |
64 | tp = localtime(&t); | |
65 | if (tp == NULL) | |
66 | { | |
67 | puts("localtime() failed."); | |
68 | lose = 1; | |
69 | } | |
70 | else if (strftime(buf, sizeof(buf), "%a %b %d %X %Z %Y", tp) == 0) | |
71 | { | |
72 | puts("strftime() failed."); | |
73 | lose = 1; | |
74 | } | |
75 | else | |
76 | puts(buf); | |
77 | if (tbuf.tm_year == 101) | |
78 | { | |
79 | tbuf.tm_year = 97; | |
80 | tbuf.tm_mon = 0; | |
81 | goto doit; | |
82 | } | |
83 | ++argv; | |
84 | } while (--argc > 0); | |
85 | ||
86 | { | |
87 | #define SIZE 256 | |
88 | char buffer[SIZE]; | |
89 | time_t curtime; | |
90 | struct tm *loctime; | |
91 | ||
92 | curtime = time (NULL); | |
93 | ||
94 | loctime = localtime (&curtime); | |
95 | ||
96 | fputs (asctime (loctime), stdout); | |
97 | ||
98 | strftime (buffer, SIZE, "Today is %A, %B %d.\n", loctime); | |
99 | fputs (buffer, stdout); | |
100 | strftime (buffer, SIZE, "The time is %I:%M %p.\n", loctime); | |
101 | fputs (buffer, stdout); | |
102 | ||
103 | loctime->tm_year = 72; | |
104 | loctime->tm_mon = 8; | |
105 | loctime->tm_mday = 12; | |
106 | loctime->tm_hour = 20; | |
107 | loctime->tm_min = 49; | |
108 | loctime->tm_sec = 05; | |
109 | curtime = mktime (loctime); | |
110 | strftime (buffer, SIZE, "%D %T was %w the %jth.\n", loctime); | |
111 | fputs (buffer, stdout); | |
112 | } | |
113 | ||
114 | return (lose ? EXIT_FAILURE : EXIT_SUCCESS); | |
115 | } |