/* * Copyright (c) 1980, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)v7.local.c 8.1 (Berkeley) 6/6/93 * $FreeBSD: src/usr.bin/mail/v7.local.c,v 1.2.8.3 2003/01/06 05:46:04 mikeh Exp $ * $DragonFly: src/usr.bin/mail/v7.local.c,v 1.4 2004/09/08 03:01:11 joerg Exp $ */ /* * Mail -- a mail program * * Version 7 * * Local routines that are installation dependent. */ #include "rcv.h" #include #include "extern.h" /* * Locate the user's mailbox file (ie, the place where new, unread * mail is queued). */ void findmail(char *user, char *buf, int buflen) { char *tmp = getenv("MAIL"); if (tmp == NULL) snprintf(buf, buflen, "%s/%s", _PATH_MAILDIR, user); else strlcpy(buf, tmp, buflen); } /* * Get rid of the queued mail. */ void demail(void) { if (value("keep") != NULL || rm(mailname) < 0) close(open(mailname, O_CREAT | O_TRUNC | O_WRONLY, 0600)); } /* * Discover user login name. */ char * username(void) { char *np; uid_t uid; if ((np = getenv("USER")) != NULL) return (np); if ((np = getenv("LOGNAME")) != NULL) return (np); if ((np = getname(uid = getuid())) != NULL) return (np); printf("Cannot associate a name with uid %u\n", (unsigned)uid); return (NULL); }