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1227625a SP |
1 | /* |
2 | * Ported to Linux's Second Extended File System as part of the | |
3 | * dump and restore backup suit | |
b45f51d6 SP |
4 | * Remy Card <card@Linux.EU.Org>, 1994-1997 |
5 | * Stelian Pop <pop@cybercable.fr>, 1999 | |
1227625a SP |
6 | * |
7 | */ | |
8 | ||
9 | /*- | |
10 | * Copyright (c) 1980, 1993 | |
11 | * The Regents of the University of California. All rights reserved. | |
12 | * | |
13 | * Redistribution and use in source and binary forms, with or without | |
14 | * modification, are permitted provided that the following conditions | |
15 | * are met: | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. All advertising materials mentioning features or use of this software | |
22 | * must display the following acknowledgement: | |
23 | * This product includes software developed by the University of | |
24 | * California, Berkeley and its contributors. | |
25 | * 4. Neither the name of the University nor the names of its contributors | |
26 | * may be used to endorse or promote products derived from this software | |
27 | * without specific prior written permission. | |
28 | * | |
29 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
30 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
31 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
32 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
33 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
34 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
35 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
36 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
37 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
38 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
39 | * SUCH DAMAGE. | |
40 | */ | |
41 | ||
42 | #ifndef lint | |
b45f51d6 | 43 | #if 0 |
1227625a | 44 | static char sccsid[] = "@(#)unctime.c 8.2 (Berkeley) 6/14/94"; |
b45f51d6 SP |
45 | #endif |
46 | static const char rcsid[] = | |
47 | "$Id: unctime.c,v 1.2 1999/10/11 12:53:23 stelian Exp $"; | |
1227625a SP |
48 | #endif /* not lint */ |
49 | ||
1227625a SP |
50 | #include <time.h> |
51 | #ifdef __STDC__ | |
52 | #include <stdlib.h> | |
53 | #include <string.h> | |
54 | #endif | |
55 | ||
1227625a SP |
56 | /* |
57 | * Convert a ctime(3) format string into a system format date. | |
58 | * Return the date thus calculated. | |
59 | * | |
60 | * Return -1 if the string is not in ctime format. | |
61 | */ | |
62 | ||
63 | /* | |
64 | * Offsets into the ctime string to various parts. | |
65 | */ | |
66 | ||
67 | #define E_MONTH 4 | |
68 | #define E_DAY 8 | |
69 | #define E_HOUR 11 | |
70 | #define E_MINUTE 14 | |
71 | #define E_SECOND 17 | |
72 | #define E_YEAR 20 | |
73 | ||
74 | static int lookup __P((char *)); | |
75 | ||
76 | ||
77 | time_t | |
78 | unctime(str) | |
79 | char *str; | |
80 | { | |
81 | struct tm then; | |
82 | char dbuf[26]; | |
83 | ||
84 | (void) strncpy(dbuf, str, sizeof(dbuf) - 1); | |
85 | dbuf[sizeof(dbuf) - 1] = '\0'; | |
86 | dbuf[E_MONTH+3] = '\0'; | |
87 | if ((then.tm_mon = lookup(&dbuf[E_MONTH])) < 0) | |
88 | return (-1); | |
89 | then.tm_mday = atoi(&dbuf[E_DAY]); | |
90 | then.tm_hour = atoi(&dbuf[E_HOUR]); | |
91 | then.tm_min = atoi(&dbuf[E_MINUTE]); | |
92 | then.tm_sec = atoi(&dbuf[E_SECOND]); | |
93 | then.tm_year = atoi(&dbuf[E_YEAR]) - 1900; | |
94 | then.tm_isdst = -1; | |
95 | return(mktime(&then)); | |
96 | } | |
97 | ||
98 | static char months[] = | |
99 | "JanFebMarAprMayJunJulAugSepOctNovDec"; | |
100 | ||
101 | static int | |
102 | lookup(str) | |
103 | char *str; | |
104 | { | |
105 | register char *cp, *cp2; | |
106 | ||
107 | for (cp = months, cp2 = str; *cp != '\0'; cp += 3) | |
108 | if (strncmp(cp, cp2, 3) == 0) | |
109 | return((cp-months) / 3); | |
110 | return(-1); | |
111 | } |