# 2.11BSD#431 - /usr/src/usr.sbin/sendmail/src/arpadate.c

##### Functions

    arpadate          X

       1: /*
       2:  * Copyright (c) 1983 Eric P. Allman
       3:  * Copyright (c) 1988, 1993
       4:  *	The Regents of the University of California.  All rights reserved.
       5:  *
       6:  * Redistribution and use in source and binary forms, with or without
       7:  * modification, are permitted provided that the following conditions
       8:  * are met:
       9:  * 1. Redistributions of source code must retain the above copyright
      10:  *    notice, this list of conditions and the following disclaimer.
      11:  * 2. Redistributions in binary form must reproduce the above copyright
      12:  *    notice, this list of conditions and the following disclaimer in the
      13:  *    documentation and/or other materials provided with the distribution.
      14:  * 3. All advertising materials mentioning features or use of this software
      15:  *    must display the following acknowledgement:
      16:  *	This product includes software developed by the University of
      17:  *	California, Berkeley and its contributors.
      18:  * 4. Neither the name of the University nor the names of its contributors
      19:  *    may be used to endorse or promote products derived from this software
      20:  *    without specific prior written permission.
      21:  *
      22:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
      23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
      26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      32:  * SUCH DAMAGE.
      33:  */
      34:
      35: #if !defined(lint) && !defined(NOSCCS)
      36: static char sccsid[] = "@(#)arpadate.c	8.1.2 (2.11BSD GTE) 1997/10/3";
      37: #endif
      38:
      39: #include "sendmail.h"
      40:
      41: /*
      42: **  ARPADATE -- Create date in ARPANET format
      43: **
      44: **	Parameters:
      45: **		ud -- unix style date string.  if NULL, one is created.
      46: **
      47: **	Returns:
      48: **		pointer to an ARPANET date field
      49: **
      50: **	Side Effects:
      51: **		none
      52: **
      53: **	WARNING:
      54: **		date is stored in a local buffer -- subsequent
      55: **		calls will overwrite.
      56: **
      57: **	Bugs:
      58: **		Timezone is computed from local time, rather than
      59: **		from whereever (and whenever) the message was sent.
      60: **		To do better is very hard.
      61: **
      62: **		Some sites are now inserting the timezone into the
      63: **		local date.  This routine should figure out what
      64: **		the format is and work appropriately.
      65: */
      66:
      67: char *
      68: arpadate(ud)
      69:     char *ud;
      70: {
      71:     register char *p;
      72:     register char *q;
      73:     int off;
      74:     int i;
      75:     register struct tm *lt;
      76:     time_t t;
      77:     struct tm gmt;
      78:     static char b[40];
      79:
      80:     /*
      81: 	**  Get current time.
      82: 	**	This will be used if a null argument is passed and
      83: 	**	to resolve the timezone.
      84: 	*/
      85:
      86:     (void) time(&t);
      87:     if (ud == NULL)
      88:         ud = ctime(&t);
      89:
      90:     /*
      91: 	**  Crack the UNIX date line in a singularly unoriginal way.
      92: 	*/
      93:
      94:     q = b;
      95:
      96:     p = &ud[0];     /* Mon */
      97:     *q++ = *p++;
      98:     *q++ = *p++;
      99:     *q++ = *p++;
     100:     *q++ = ',';
     101:     *q++ = ' ';
     102:
     103:     p = &ud[8];     /* 16 */
     104:     if (*p == ' ')
     105:         p++;
     106:     else
     107:         *q++ = *p++;
     108:     *q++ = *p++;
     109:     *q++ = ' ';
     110:
     111:     p = &ud[4];     /* Sep */
     112:     *q++ = *p++;
     113:     *q++ = *p++;
     114:     *q++ = *p++;
     115:     *q++ = ' ';
     116:
     117:     p = &ud[20];        /* 1979 */
     118:     *q++ = *p++;
     119:     *q++ = *p++;
     120:     *q++ = *p++;
     121:     *q++ = *p++;
     122:     *q++ = ' ';
     123:
     124:     p = &ud[11];        /* 01:03:52 */
     125:     for (i = 8; i > 0; i--)
     126:         *q++ = *p++;
     127:
     128:     /*
     129: 	 * should really get the timezone from the time in "ud" (which
     130: 	 * is only different if a non-null arg was passed which is different
     131: 	 * from the current time), but for all practical purposes, returning
     132: 	 * the current local zone will do (its all that is ever needed).
     133: 	 */
     134:     gmt = *gmtime(&t);
     135:     lt = localtime(&t);
     136:
     137:     off = (lt->tm_hour - gmt.tm_hour) * 60 + lt->tm_min - gmt.tm_min;
     138:
     139:     /* assume that offset isn't more than a day ... */
     140:     if (lt->tm_year < gmt.tm_year)
     141:         off -= 24 * 60;
     142:     else if (lt->tm_year > gmt.tm_year)
     143:         off += 24 * 60;
     144:     else if (lt->tm_yday < gmt.tm_yday)
     145:         off -= 24 * 60;
     146:     else if (lt->tm_yday > gmt.tm_yday)
     147:         off += 24 * 60;
     148:
     149:     *q++ = ' ';
     150:     if (off == 0) {
     151:         *q++ = 'G';
     152:         *q++ = 'M';
     153:         *q++ = 'T';
     154:     } else {
     155:         if (off < 0) {
     156:             off = -off;
     157:             *q++ = '-';
     158:         } else
     159:             *q++ = '+';
     160:
     161:         if (off >= 24*60)       /* should be impossible */
     162:             off = 23*60+59;     /* if not, insert silly value */
     163:
     164:         *q++ = (off / 600) + '0';
     165:         *q++ = (off / 60) % 10 + '0';
     166:         off %= 60;
     167:         *q++ = (off / 10) + '0';
     168:         *q++ = (off % 10) + '0';
     169:     }
     170:     *q = '\0';
     171:
     172:     return (b);
     173: }

#### Defined functions

arpadate defined in line 67; used 8 times

- in /usr/src/usr.sbin/sendmail/src/collect.c line 319, 326
- in /usr/src/usr.sbin/sendmail/src/envelope.c line 304, 317
- in /usr/src/usr.sbin/sendmail/src/headers.c line 621
- in /usr/src/usr.sbin/sendmail/src/main.c line 116, 267
- in /usr/src/usr.sbin/sendmail/src/srvrsmtp.c line 112

#### Defined variables

sccsid defined in line 36; never used

Last modified: 1997-10-03 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 931 |