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v7.local.c revision 1.2 
      1 /*
      2  * Copyright (c) 1980 Regents of the University of California.
      3  * 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[] = "@(#)v7.local.c	5.12 (Berkeley) 2/3/91";
     36 #endif /* not lint */
     37 
     38 /*
     39  * Mail -- a mail program
     40  *
     41  * Version 7
     42  *
     43  * Local routines that are installation dependent.
     44  */
     45 
     46 #include "rcv.h"
     47 
     48 /*
     49  * Locate the user's mailbox file (ie, the place where new, unread
     50  * mail is queued).
     51  */
     52 findmail(user, buf)
     53 	char *user, *buf;
     54 {
     55 	(void)sprintf(buf, "%s/%s", _PATH_MAILDIR, user);
     56 }
     57 
     58 /*
     59  * Get rid of the queued mail.
     60  */
     61 demail()
     62 {
     63 
     64 	if (value("keep") != NOSTR || rm(mailname) < 0)
     65 		close(creat(mailname, 0600));
     66 }
     67 
     68 /*
     69  * Discover user login name.
     70  */
     71 char*
     72 username()
     73 {
     74 	char *np;
     75 
     76 	if ((np = getenv("LOGNAME")) != NOSTR)
     77 		return np;
     78 	if ((np = getenv("USER")) != NOSTR)
     79 		return np;
     80 	return getname(getuid());
     81 }
     82