BSD 4_4 release

[unix-history] / usr / src / usr.bin / mail / temp.c

/*
* Copyright (c) 1980, 1993
*      The Regents of the University of California.  All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#ifndef lint
static char sccsid[] = "@(#)temp.c      8.1 (Berkeley) 6/6/93";
#endif /* not lint */

#include "rcv.h"
#include <errno.h>
#include "extern.h"

/*
* Mail -- a mail program
*
* Give names to all the temporary files that we will need.
*/

char    tempMail[24];
char    tempQuit[24];
char    tempEdit[24];
char    tempResid[24];
char    tempMesg[24];
char    *tmpdir;

void
tinit()
{
       register char *cp;
       int len;

       if ((tmpdir = getenv("TMPDIR")) == NULL)
               tmpdir = _PATH_TMP;
       else {
               len = strlen(tmpdir);
               if ((cp = malloc(len + 2)) == NULL) {
                       (void)fprintf(stderr, "mail: %s\n", strerror(errno));
                       exit (1);
               }
               (void)strcpy(cp, tmpdir);
               cp[len] = '/';
               cp[len + 1] = '\0';
               tmpdir = cp;
       }
                       
       strcpy(tempMail, tmpdir);
       mktemp(strcat(tempMail, "RsXXXXXX"));
       strcpy(tempResid, tmpdir);
       mktemp(strcat(tempResid, "RqXXXXXX"));
       strcpy(tempQuit, tmpdir);
       mktemp(strcat(tempQuit, "RmXXXXXX"));
       strcpy(tempEdit, tmpdir);
       mktemp(strcat(tempEdit, "ReXXXXXX"));
       strcpy(tempMesg, tmpdir);
       mktemp(strcat(tempMesg, "RxXXXXXX"));

       /*
        * It's okay to call savestr in here because main will
        * do a spreserve() after us.
        */
       if (myname != NOSTR) {
               if (getuserid(myname) < 0) {
                       printf("\"%s\" is not a user of this system\n",
                           myname);
                       exit(1);
               }
       } else {
               if ((cp = username()) == NOSTR) {
                       myname = "ubluit";
                       if (rcvmode) {
                               printf("Who are you!?\n");
                               exit(1);
                       }
               } else
                       myname = savestr(cp);
       }
       if ((cp = getenv("HOME")) == NOSTR)
               cp = ".";
       homedir = savestr(cp);
       if (debug)
               printf("user = %s, homedir = %s\n", myname, homedir);
}