usr/src/cmd/mailx/receipt.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
  23 /*
  24  * Copyright 2014 Joyent, Inc.
  25  */
  26
  27 /*
  28  * Copyright 1998 Sun Microsystems, Inc.  All rights reserved.
  29  * Use is subject to license terms.
  30  */
  31
  32 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  33 /*        All Rights Reserved   */
  34
  35
  36 /*
  37  * University Copyright- Copyright (c) 1982, 1986, 1988
  38  * The Regents of the University of California
  39  * All Rights Reserved
  40  *
  41  * University Acknowledgment- Portions of this document are derived from
  42  * software developed by the University of California, Berkeley, and its
  43  * contributors.
  44  */
  45
  46 #include <err.h>
  47
  48 #include "rcv.h"
  49
  50 static int              icsubstr(char *s1, char *s2);
  51
  52 void
  53 receipt(struct message *mp)
  54 {
  55         char    head[LINESIZE];
  56         char    buf[BUFSIZ];
  57         FILE    *pp, *fp;
  58         char    *mail, *s;
  59
  60
  61         if ((mail = value("sendmail")) == 0)
  62 #ifdef SENDMAIL
  63                 mail = SENDMAIL;
  64 #else
  65                 mail = MAIL;
  66 #endif
  67         if (icsubstr(hfield("default-options", mp, addone), "/receipt")
  68          || icsubstr(hfield(">to", mp, addto), "/receipt")) {
  69                 snprintf(buf, sizeof (buf), "%s %s", mail, skin(nameof(mp)));
  70                 if (pp = npopen(buf, "w")) {
  71                         headline_t *hl;
  72
  73                         if (headline_alloc(&hl) != 0) {
  74                                 err(1, "could not allocate memory");
  75                         }
  76
  77                         fp = setinput(mp);
  78                         readline(fp, head);
  79                         if (parse_headline(head, hl) != 0) {
  80                                 headline_reset(hl);
  81                         }
  82                         if (custr_len(hl->hl_date) > 0) {
  83                                 fprintf(pp, "Original-Date: %s\n",
  84                                     custr_cstr(hl->hl_date));
  85                         }
  86                         if (s = hfield("message-id", mp, addone))
  87                                 fprintf(pp, "Original-Message-ID: %s\n", s);
  88                         s = hfield("subject", mp, addone);
  89                         fprintf(pp, "Subject: RR: %s\n", s ? s : "(none)");
  90                         npclose(pp);
  91                         headline_free(hl);
  92                 }
  93         }
  94 }
  95
  96 static int
  97 icsubstr(char *s1, char *s2)
  98 {
  99         char    buf[LINESIZE];
 100
 101         if (s1 && s2) {
 102                 istrcpy(buf, sizeof (buf), s1);
 103                 return substr(buf, s2) != -1;
 104         } else
 105                 return 0;
 106 }