usr/src/cmd/mail/savehdrs.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  23 /*        All Rights Reserved   */
  24
  25 #pragma ident   "%Z%%M% %I%     %E% SMI"
  26
  27 #include "mail.h"
  28 /*
  29  * Save info on each header line for possible generation
  30  * of MTA positive or negative delivery notification
  31  */
  32 void
  33 savehdrs(s, hdrtype)
  34 char *s;
  35 int hdrtype;
  36 {
  37         char            *q;
  38         int             rf;
  39         char            delim = ':';
  40         char            tbuf[HDRSIZ];
  41         static int      last_hdrtype = -1;
  42
  43         if (hdrtype > H_CONT) {
  44                 return;
  45         }
  46         if (hdrtype == H_CONT) {
  47                 trimnl(s);
  48                 pushlist(last_hdrtype, TAIL, s, TRUE);
  49                 return;
  50         }
  51
  52         last_hdrtype = hdrtype;
  53
  54         if ((hdrtype == H_FROM) || (hdrtype == H_FROM1)) {
  55                 delim = ' ';
  56         } else {
  57                 if (fnuhdrtype == 0) {
  58                         /* Save type of first non-UNIX header line */
  59                         fnuhdrtype = hdrtype;
  60                 }
  61         }
  62         switch (hdrtype) {
  63             case H_FROM1:
  64                 /* If first ">From " line, check for '...remote from...' */
  65                 if (hdrlines[H_FROM1].head == NULL) {
  66                         if ((rf = substr(s, " remote from ")) >= 0) {
  67                                 trimnl(s + rf);
  68                                 (void) snprintf(tbuf, sizeof (tbuf),
  69                                     "from %s by %s%s; %s",
  70                                     s+rf+13, thissys, maildomain(),
  71                                     RFC822datestring);
  72                                 pushlist(H_RECEIVED, HEAD, tbuf, FALSE);
  73                         }
  74                 }
  75                 break;
  76
  77             /* Remember that these header line type were in orig. msg.  */
  78             case H_AFWDFROM:
  79                 orig_aff++;
  80                 break;
  81             case H_RECEIVED:
  82                 orig_rcv++;
  83                 break;
  84             case H_TCOPY:
  85                 orig_tcopy++;
  86                 break;
  87         }
  88         q = strchr(s, delim) + 1;
  89         q = skipspace(q);
  90         trimnl(q);
  91         if ((hdrtype == H_UAID) || (hdrtype == H_MTSID)) {
  92                 /* Check for enclosing '<' & '>', and remove if found */
  93                 /* gendeliv() will replace them if necessary */
  94                 if ((*q == '<') && (*(q+strlen(q)-1) == '>')) {
  95                         q++;
  96                         *(q+strlen(q)-1) = '\0';
  97                 }
  98         }
  99
 100         pushlist(hdrtype, TAIL, q, FALSE);
 101 }