xref: /netbsd-src/usr.bin/mail/temp.c (revision 6ea46cb5e46c49111a6ecf3bcbe3c7e2730fe9f6)
1 /*
2  * Copyright (c) 1980, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #ifndef lint
35 static char sccsid[] = "from: @(#)temp.c	8.1 (Berkeley) 6/6/93";
36 static char rcsid[] = "$Id: temp.c,v 1.3 1994/06/29 05:09:45 deraadt Exp $";
37 #endif /* not lint */
38 
39 #include "rcv.h"
40 #include <errno.h>
41 #include "extern.h"
42 
43 /*
44  * Mail -- a mail program
45  *
46  * Give names to all the temporary files that we will need.
47  */
48 
49 char	tempMail[24];
50 char	tempQuit[24];
51 char	tempEdit[24];
52 char	tempResid[24];
53 char	tempMesg[24];
54 char	*tmpdir;
55 
56 void
57 tinit()
58 {
59 	register char *cp;
60 	int len;
61 
62 	if ((tmpdir = getenv("TMPDIR")) == NULL)
63 		tmpdir = _PATH_TMP;
64 	else {
65 		len = strlen(tmpdir);
66 		if ((cp = malloc(len + 2)) == NULL) {
67 			(void)fprintf(stderr, "mail: %s\n", strerror(errno));
68 			exit (1);
69 		}
70 		(void)strcpy(cp, tmpdir);
71 		cp[len] = '/';
72 		cp[len + 1] = '\0';
73 		tmpdir = cp;
74 	}
75 
76 	strcpy(tempMail, tmpdir);
77 	mktemp(strcat(tempMail, "RsXXXXXX"));
78 	strcpy(tempResid, tmpdir);
79 	mktemp(strcat(tempResid, "RqXXXXXX"));
80 	strcpy(tempQuit, tmpdir);
81 	mktemp(strcat(tempQuit, "RmXXXXXX"));
82 	strcpy(tempEdit, tmpdir);
83 	mktemp(strcat(tempEdit, "ReXXXXXX"));
84 	strcpy(tempMesg, tmpdir);
85 	mktemp(strcat(tempMesg, "RxXXXXXX"));
86 
87 	/*
88 	 * It's okay to call savestr in here because main will
89 	 * do a spreserve() after us.
90 	 */
91 	if (myname != NOSTR) {
92 		if (getuserid(myname) < 0) {
93 			printf("\"%s\" is not a user of this system\n",
94 			    myname);
95 			exit(1);
96 		}
97 	} else {
98 		if ((cp = username()) == NOSTR) {
99 			myname = "ubluit";
100 			if (rcvmode) {
101 				printf("Who are you!?\n");
102 				exit(1);
103 			}
104 		} else
105 			myname = savestr(cp);
106 	}
107 	if ((cp = getenv("HOME")) == NOSTR)
108 		cp = ".";
109 	homedir = savestr(cp);
110 	if (debug)
111 		printf("user = %s, homedir = %s\n", myname, homedir);
112 }
113