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#if 0 36static char sccsid[] = "@(#)v7.local.c 8.1 (Berkeley) 6/6/93"; 37#endif 38static const char rcsid[] = 39 "$FreeBSD: src/usr.bin/mail/v7.local.c,v 1.5 2002/06/30 05:25:06 obrien Exp $"; 40#endif /* not lint */ 41 42#include <sys/cdefs.h> 43 44/* 45 * Mail -- a mail program 46 * 47 * Version 7 48 * 49 * Local routines that are installation dependent. 50 */ 51 52#include "rcv.h" 53#include <fcntl.h> 54#include "extern.h" 55 56/* 57 * Locate the user's mailbox file (ie, the place where new, unread 58 * mail is queued). 59 */ 60void 61findmail(user, buf, buflen) 62 char *user, *buf; 63 int buflen; 64{ 65 char *tmp = getenv("MAIL"); 66 67 if (tmp == NULL) 68 (void)snprintf(buf, buflen, "%s/%s", _PATH_MAILDIR, user); 69 else 70 (void)strlcpy(buf, tmp, buflen); 71} 72 73/* 74 * Get rid of the queued mail. 75 */ 76void 77demail() 78{ 79 80 if (value("keep") != NULL || rm(mailname) < 0) 81 (void)close(open(mailname, O_CREAT | O_TRUNC | O_WRONLY, 0600)); 82} 83 84/* 85 * Discover user login name. 86 */ 87char * 88username() 89{ 90 char *np; 91 uid_t uid; 92 93 if ((np = getenv("USER")) != NULL) 94 return (np); 95 if ((np = getenv("LOGNAME")) != NULL) 96 return (np); 97 if ((np = getname(uid = getuid())) != NULL) 98 return (np); 99 printf("Cannot associate a name with uid %u\n", (unsigned)uid); 100 return (NULL); 101} 102