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      1 /*	$NetBSD: temp.c,v 1.22 2010/01/12 14:45:31 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1980, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 #if 0
     35 static char sccsid[] = "@(#)temp.c	8.1 (Berkeley) 6/6/93";
     36 #else
     37 __RCSID("$NetBSD: temp.c,v 1.22 2010/01/12 14:45:31 christos Exp $");
     38 #endif
     39 #endif /* not lint */
     40 
     41 #include "rcv.h"
     42 #include <util.h>
     43 #include "extern.h"
     44 
     45 /*
     46  * Mail -- a mail program
     47  *
     48  * Give names to all the temporary files that we will need.
     49  */
     50 
     51 PUBLIC void
     52 tinit(void)
     53 {
     54 	char pathbuf[MAXPATHLEN];
     55 	const char *cp;
     56 	char *p;
     57 
     58 	/*
     59 	 * It's okay to call savestr in here because main will
     60 	 * do a spreserve() after us.
     61 	 */
     62 	if ((cp = getenv("TMPDIR")) == NULL || *cp == '\0')
     63 		cp = _PATH_TMP;
     64 
     65 	tmpdir = savestr(cp);
     66 
     67 	/* Remove trailing slashes. */
     68 	p = tmpdir + strlen(tmpdir) - 1;
     69 	while (p > tmpdir && *p == '/') {
     70 		*p = '\0';
     71 		p--;
     72 	}
     73 
     74 	if (myname != NULL) {
     75 		if (getuserid(myname) < 0)
     76 			errx(EXIT_FAILURE, "`%s' is not a user of this system", myname);
     77 	}
     78 	else {
     79 		if ((cp = username()) == NULL) {
     80 			myname = savestr("nobody");
     81 			if (mailmode == mm_receiving)
     82 				errx(EXIT_FAILURE, "who am I receiving for?");
     83 		} else
     84 			myname = savestr(cp);
     85 	}
     86 	if ((cp = getenv("HOME")) == NULL)
     87 		cp = ".";
     88 	homedir = savestr(cp);
     89 
     90 	if (getcwd(pathbuf, sizeof(pathbuf)) != NULL)
     91 		origdir = savestr(pathbuf);
     92 	else {
     93 		warn("getcwd");
     94 		origdir = savestr(".");
     95 	}
     96 
     97 	if (debug)
     98 		(void)printf("user = %s, homedir = %s, origdir = %s\n",
     99 		    myname, homedir, origdir);
    100 }
    101