1 /* $NetBSD: v7.local.c,v 1.10 1998/07/26 22:07:27 mycroft 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)v7.local.c 8.1 (Berkeley) 6/6/93"; 40 #else 41 __RCSID("$NetBSD: v7.local.c,v 1.10 1998/07/26 22:07:27 mycroft Exp $"); 42 #endif 43 #endif /* not lint */ 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 "extern.h" 55 56 /* 57 * Locate the user's mailbox file (ie, the place where new, unread 58 * mail is queued). 59 */ 60 void 61 findmail(user, buf) 62 char *user, *buf; 63 { 64 char *mbox; 65 66 if (!(mbox = getenv("MAIL"))) 67 (void)snprintf(buf, PATHSIZE, "%s/%s", _PATH_MAILDIR, user); 68 else { 69 (void)strncpy(buf, mbox, PATHSIZE - 1); 70 buf[PATHSIZE - 1] = '\0'; 71 } 72 } 73 74 /* 75 * Get rid of the queued mail. 76 */ 77 void 78 demail() 79 { 80 81 if (value("keep") != NOSTR || rm(mailname) < 0) 82 (void)close(creat(mailname, 0600)); 83 } 84 85 /* 86 * Discover user login name. 87 */ 88 const char * 89 username() 90 { 91 const char *np; 92 uid_t uid; 93 94 if ((np = getenv("USER")) != NOSTR) 95 return np; 96 if ((np = getname(uid = getuid())) != NOSTR) 97 return np; 98 printf("Cannot associate a name with uid %u\n", (unsigned)uid); 99 return NOSTR; 100 } 101