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Diffstat (limited to 'src/arpadate.c')
| -rw-r--r-- | src/arpadate.c | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/src/arpadate.c b/src/arpadate.c deleted file mode 100644 index c02decd..0000000 --- a/src/arpadate.c +++ /dev/null @@ -1,202 +0,0 @@ -/* - * Copyright (c) 1998 Sendmail, Inc. All rights reserved. - * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * By using this file, you agree to the terms and conditions set - * forth in the LICENSE file which can be found at the top level of - * the sendmail distribution. - * - */ - -#ifndef lint -static char sccsid[] = "@(#)arpadate.c 8.14 (Berkeley) 2/2/1999"; -#endif /* not lint */ - -# include "sendmail.h" - -/* -** ARPADATE -- Create date in ARPANET format -** -** Parameters: -** ud -- unix style date string. if NULL, one is created. -** -** Returns: -** pointer to an ARPANET date field -** -** Side Effects: -** none -** -** WARNING: -** date is stored in a local buffer -- subsequent -** calls will overwrite. -** -** Bugs: -** Timezone is computed from local time, rather than -** from whereever (and whenever) the message was sent. -** To do better is very hard. -** -** Some sites are now inserting the timezone into the -** local date. This routine should figure out what -** the format is and work appropriately. -*/ - -#ifndef TZNAME_MAX -# define TZNAME_MAX 50 /* max size of timezone */ -#endif - -/* values for TZ_TYPE */ -#define TZ_NONE 0 /* no character timezone support */ -#define TZ_TM_NAME 1 /* use tm->tm_name */ -#define TZ_TM_ZONE 2 /* use tm->tm_zone */ -#define TZ_TZNAME 3 /* use tzname[] */ -#define TZ_TIMEZONE 4 /* use timezone() */ - -char * -arpadate(ud) - register char *ud; -{ - register char *p; - register char *q; - register int off; - register int i; - register struct tm *lt; - time_t t; - struct tm gmt; - char *tz; - static char b[43 + TZNAME_MAX]; - - /* - ** Get current time. - ** This will be used if a null argument is passed and - ** to resolve the timezone. - */ - - t = curtime(); - if (ud == NULL) - ud = ctime(&t); - - /* - ** Crack the UNIX date line in a singularly unoriginal way. - */ - - q = b; - - p = &ud[0]; /* Mon */ - *q++ = *p++; - *q++ = *p++; - *q++ = *p++; - *q++ = ','; - *q++ = ' '; - - p = &ud[8]; /* 16 */ - if (*p == ' ') - p++; - else - *q++ = *p++; - *q++ = *p++; - *q++ = ' '; - - p = &ud[4]; /* Sep */ - *q++ = *p++; - *q++ = *p++; - *q++ = *p++; - *q++ = ' '; - - p = &ud[20]; /* 1979 */ - *q++ = *p++; - *q++ = *p++; - *q++ = *p++; - *q++ = *p++; - *q++ = ' '; - - p = &ud[11]; /* 01:03:52 */ - for (i = 8; i > 0; i--) - *q++ = *p++; - - /* - * should really get the timezone from the time in "ud" (which - * is only different if a non-null arg was passed which is different - * from the current time), but for all practical purposes, returning - * the current local zone will do (its all that is ever needed). - */ - gmt = *gmtime(&t); - lt = localtime(&t); - - off = (lt->tm_hour - gmt.tm_hour) * 60 + lt->tm_min - gmt.tm_min; - - /* assume that offset isn't more than a day ... */ - if (lt->tm_year < gmt.tm_year) - off -= 24 * 60; - else if (lt->tm_year > gmt.tm_year) - off += 24 * 60; - else if (lt->tm_yday < gmt.tm_yday) - off -= 24 * 60; - else if (lt->tm_yday > gmt.tm_yday) - off += 24 * 60; - - *q++ = ' '; - if (off == 0) - { - *q++ = 'G'; - *q++ = 'M'; - *q++ = 'T'; - } - else - { - tz = NULL; -#if TZ_TYPE == TZ_TM_NAME - tz = lt->tm_name; -#endif -#if TZ_TYPE == TZ_TM_ZONE - tz = lt->tm_zone; -#endif -#if TZ_TYPE == TZ_TZNAME - { - extern char *tzname[]; - - if (lt->tm_isdst > 0) - tz = tzname[1]; - else if (lt->tm_isdst == 0) - tz = tzname[0]; - else - tz = NULL; - } -#endif -#if TZ_TYPE == TZ_TIMEZONE - { - extern char *timezone(); - - tz = timezone(off, lt->tm_isdst); - } -#endif - if (off < 0) - { - off = -off; - *q++ = '-'; - } - else - *q++ = '+'; - - if (off >= 24*60) /* should be impossible */ - off = 23*60+59; /* if not, insert silly value */ - - *q++ = (off / 600) + '0'; - *q++ = (off / 60) % 10 + '0'; - off %= 60; - *q++ = (off / 10) + '0'; - *q++ = (off % 10) + '0'; - if (tz != NULL && *tz != '\0') - { - *q++ = ' '; - *q++ = '('; - while (*tz != '\0' && q < &b[sizeof b - 3]) - *q++ = *tz++; - *q++ = ')'; - } - } - *q = '\0'; - - return (b); -} |