usr/src/cmd/mail/mkdead.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
  26 #ident  "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.6 */
  27
  28 #include "mail.h"
  29 /*
  30         Routine creates dead.letter
  31 */
  32 void mkdead()
  33 {
  34         static char pn[] = "mkdead";
  35         int aret;
  36         char *dotdead = &dead[1];
  37         gid_t egid = getegid();
  38         struct stat st;
  39
  40         malf = NULL;
  41
  42         /*
  43                 Make certain that there's something to copy.
  44         */
  45         if (!tmpf)
  46                 return;
  47
  48         /*
  49                 Try to create dead letter in current directory
  50                 or in home directory
  51         */
  52         umask(umsave);
  53         setgid(getgid());
  54         if ((aret = legal(dotdead)) && stat(dotdead, &st) == 0)
  55                 malf = fopen(dotdead, "a");
  56         if ((malf == NULL) || (aret == 0)) {
  57                 /*
  58                         try to create in $HOME
  59                 */
  60                 if((hmdead = malloc(strlen(home) + strlen(dead) + 1)) == NULL) {
  61                         fprintf(stderr, "%s: Can't malloc\n",program);
  62                         Dout(pn, 0, "Cannot malloc.\n");
  63                         goto out;
  64                 }
  65                 cat(hmdead, home, dead);
  66                 if ((aret=legal(hmdead)) && !(stat(hmdead, &st) < 0 &&
  67                         errno == EOVERFLOW))
  68                         malf = fopen(hmdead, "a");
  69                 if ((malf == NULL) || (aret == 0)) {
  70                         fprintf(stderr,
  71                                 "%s: Cannot create %s\n",
  72                                 program,dotdead);
  73                         Dout(pn, 0, "Cannot create %s\n", dotdead);
  74                 out:
  75                         fclose(tmpf);
  76                         error = E_FILE;
  77                         Dout(pn, 0, "error set to %d\n", error);
  78                         umask(7);
  79                         setegid(egid);
  80                         return;
  81                 }  else {
  82                         chmod(hmdead, DEADPERM);
  83                         fprintf(stderr,"%s: Mail saved in %s\n",program,hmdead);
  84                 }
  85         } else {
  86                 chmod(dotdead, DEADPERM);
  87                 fprintf(stderr,"%s: Mail saved in %s\n",program,dotdead);
  88         }
  89
  90         /*
  91                 Copy letter into dead letter box
  92         */
  93         umask(7);
  94         aret = fseek(tmpf,0L,0);
  95         if (aret)
  96                 errmsg(E_DEAD,"");
  97         if (!copystream(tmpf, malf))
  98                 errmsg(E_DEAD,"");
  99         fclose(malf);
 100         setegid(egid);
 101 }
 102
 103 void savdead()
 104 {
 105         static char pn[] = "savdead";
 106         setsig(SIGINT, saveint);
 107         dflag = 2;      /* do not send back letter on interrupt */
 108         Dout(pn, 0, "dflag set to 2\n");
 109         if (!error) {
 110                 error = E_REMOTE;
 111                 Dout(pn, 0, "error set to %d\n", error);
 112         }
 113         maxerr = error;
 114         Dout(pn, 0, "maxerr set to %d\n", maxerr);
 115 }