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 38__attribute__((__used__)) 39static const char rcsid[] = 40 "$FreeBSD: src/usr.bin/mail/v7.local.c,v 1.5 2002/06/30 05:25:06 obrien Exp $"; 41#endif /* not lint */ 42 43#include <sys/cdefs.h> 44 45/* 46 * Mail -- a mail program 47 * 48 * Version 7 49 * 50 * Local routines that are installation dependent. 51 */ 52 53#include "rcv.h" 54#include <fcntl.h> 55#include "extern.h" 56 57/* 58 * Locate the user's mailbox file (ie, the place where new, unread 59 * mail is queued). 60 */ 61void 62findmail(user, buf, buflen) 63 char *user, *buf; 64 int buflen; 65{ 66 char *tmp = getenv("MAIL"); 67 68 if (tmp == NULL) 69 (void)snprintf(buf, buflen, "%s/%s", _PATH_MAILDIR, user); 70 else 71 (void)strlcpy(buf, tmp, buflen); 72} 73 74/* 75 * Get rid of the queued mail. 76 */ 77void 78demail() 79{ 80 81 if (value("keep") != NULL || rm(mailname) < 0) 82 (void)close(open(mailname, O_CREAT | O_TRUNC | O_WRONLY, 0600)); 83} 84 85/* 86 * Discover user login name. 87 */ 88char * 89username() 90{ 91 char *np; 92 uid_t uid; 93 94 if ((np = getenv("USER")) != NULL) 95 return (np); 96 if ((np = getenv("LOGNAME")) != NULL) 97 return (np); 98 if ((np = getname(uid = getuid())) != NULL) 99 return (np); 100 printf("Cannot associate a name with uid %u\n", (unsigned)uid); 101 return (NULL); 102} 103