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comparison 3rdparty/packages/uucpbb/src/date822.c @ 1772:5ba8e711a1a3

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author boisy
date Fri, 01 Apr 2005 22:04:25 +0000
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1771:7f2e75d5b62d 1772:5ba8e711a1a3
1 /* date822.c This routine returns a date string in RFC-822 format.
2 Copyright (C) 1990, 1993 Rick Adams and Bob Billson
3
4 This file is part of the OS-9 UUCP package, UUCPbb.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19
20 The author of UUCPbb, Bob Billson, can be contacted at:
21 bob@kc2wz.bubble.org or uunet!kc2wz!bob or by snail mail:
22 21 Bates Way, Westfield, NJ 07090
23 */
24
25 /* Returns a pointer to a character string containing the current date/time
26 in RFC-822 format. Requires Carl Kreider's CLIB.L or CLIBT.L to compile.
27
28 ctime() format 'Mon Nov 21 11:31:54 1983\n\0'
29
30 RFC822 format 'Mon, 21 Nov 1983 11:31:54 PST\0
31 -or- 'Mon, 16 May 1988 02:13:10 -0700\0'
32
33 The external variable 'tz' is defined in getparam.c and set in the
34 /DD/SYS/UUCP/Parameters file. */
35
36 #include "uucp.h"
37 #ifndef _OSK
38 #include <utime.h>
39 #else
40 #include <time.h>
41 #endif
42
43 #define WORDSIZE 5
44
45 extern char tz[];
46 static char RFCbuf[40]; /* RFC-822 formatted time string */
47
48
49 char *date822()
50 {
51 static long save_t = 0L;
52 char date[26];
53 register char *words[WORDSIZE];
54 char *p, *adate;
55 long t;
56
57 adate = RFCbuf;
58
59 /* get the current time */
60 time (&t);
61
62 /* If the time different from when we were last called, update the ADATE
63 string and save the time in case we are immediately called again. If
64 the time is same, return the pointer to ADATE set from the previous
65 call. */
66
67 if (t != save_t)
68 {
69 save_t = t;
70
71 /* convert the seconds to date/time format */
72 strcpy (date, ctime (&t));
73 p = strchr (date, '\n');
74 *p = '\0';
75
76 /* separate the various elements */
77 getargs (words, date, WORDSIZE);
78
79 /* put them in the RFC-822 format */
80 sprintf (adate, "%s, %s %s %s %s %s",
81 words[0], words[2], words[1], &words[4][2],
82 words[3], tz);
83 }
84 return (adate);
85 }