xref: /freebsd/usr.bin/mail/v7.local.c (revision 8a16b7a18f5d0b031f09832fd7752fba717e2a97)
1*8a16b7a1SPedro F. Giffuni /*-
2*8a16b7a1SPedro F. Giffuni  * SPDX-License-Identifier: BSD-3-Clause
3*8a16b7a1SPedro F. Giffuni  *
49b50d902SRodney W. Grimes  * Copyright (c) 1980, 1993
59b50d902SRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
69b50d902SRodney W. Grimes  *
79b50d902SRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
89b50d902SRodney W. Grimes  * modification, are permitted provided that the following conditions
99b50d902SRodney W. Grimes  * are met:
109b50d902SRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
119b50d902SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
129b50d902SRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
139b50d902SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
149b50d902SRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
15fbbd9655SWarner Losh  * 3. Neither the name of the University nor the names of its contributors
169b50d902SRodney W. Grimes  *    may be used to endorse or promote products derived from this software
179b50d902SRodney W. Grimes  *    without specific prior written permission.
189b50d902SRodney W. Grimes  *
199b50d902SRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
209b50d902SRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
219b50d902SRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
229b50d902SRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
239b50d902SRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
249b50d902SRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
259b50d902SRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
269b50d902SRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
279b50d902SRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
289b50d902SRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
299b50d902SRodney W. Grimes  * SUCH DAMAGE.
309b50d902SRodney W. Grimes  */
319b50d902SRodney W. Grimes 
329b50d902SRodney W. Grimes #ifndef lint
330c3a8314SMike Heffner #if 0
349b50d902SRodney W. Grimes static char sccsid[] = "@(#)v7.local.c	8.1 (Berkeley) 6/6/93";
350c3a8314SMike Heffner #endif
369b50d902SRodney W. Grimes #endif /* not lint */
37e026a48cSDavid E. O'Brien #include <sys/cdefs.h>
38e026a48cSDavid E. O'Brien __FBSDID("$FreeBSD$");
399b50d902SRodney W. Grimes 
409b50d902SRodney W. Grimes /*
419b50d902SRodney W. Grimes  * Mail -- a mail program
429b50d902SRodney W. Grimes  *
439b50d902SRodney W. Grimes  * Version 7
449b50d902SRodney W. Grimes  *
459b50d902SRodney W. Grimes  * Local routines that are installation dependent.
469b50d902SRodney W. Grimes  */
479b50d902SRodney W. Grimes 
489b50d902SRodney W. Grimes #include "rcv.h"
499b50d902SRodney W. Grimes #include <fcntl.h>
509b50d902SRodney W. Grimes #include "extern.h"
519b50d902SRodney W. Grimes 
529b50d902SRodney W. Grimes /*
539b50d902SRodney W. Grimes  * Locate the user's mailbox file (ie, the place where new, unread
549b50d902SRodney W. Grimes  * mail is queued).
559b50d902SRodney W. Grimes  */
569b50d902SRodney W. Grimes void
576d8484b0SPhilippe Charnier findmail(char *user, char *buf, int buflen)
589b50d902SRodney W. Grimes {
59d34dd133SJordan K. Hubbard 	char *tmp = getenv("MAIL");
60d34dd133SJordan K. Hubbard 
61d34dd133SJordan K. Hubbard 	if (tmp == NULL)
620c3a8314SMike Heffner 		(void)snprintf(buf, buflen, "%s/%s", _PATH_MAILDIR, user);
63d34dd133SJordan K. Hubbard 	else
640c3a8314SMike Heffner 		(void)strlcpy(buf, tmp, buflen);
659b50d902SRodney W. Grimes }
669b50d902SRodney W. Grimes 
679b50d902SRodney W. Grimes /*
689b50d902SRodney W. Grimes  * Get rid of the queued mail.
699b50d902SRodney W. Grimes  */
709b50d902SRodney W. Grimes void
716d8484b0SPhilippe Charnier demail(void)
729b50d902SRodney W. Grimes {
73c433bea8SPedro F. Giffuni 	int fd;
749b50d902SRodney W. Grimes 
759ce73e90SMike Heffner 	if (value("keep") != NULL || rm(mailname) < 0)
76c433bea8SPedro F. Giffuni 		if ((fd = open(mailname, O_CREAT | O_TRUNC | O_WRONLY, 0600)) >=
77c433bea8SPedro F. Giffuni 		    0)
78c433bea8SPedro F. Giffuni 			(void)close(fd);
799b50d902SRodney W. Grimes }
809b50d902SRodney W. Grimes 
819b50d902SRodney W. Grimes /*
829b50d902SRodney W. Grimes  * Discover user login name.
839b50d902SRodney W. Grimes  */
849b50d902SRodney W. Grimes char *
856d8484b0SPhilippe Charnier username(void)
869b50d902SRodney W. Grimes {
879b50d902SRodney W. Grimes 	char *np;
880c3a8314SMike Heffner 	uid_t uid;
899b50d902SRodney W. Grimes 
909ce73e90SMike Heffner 	if ((np = getenv("USER")) != NULL)
919ce73e90SMike Heffner 		return (np);
929ce73e90SMike Heffner 	if ((np = getenv("LOGNAME")) != NULL)
939ce73e90SMike Heffner 		return (np);
949ce73e90SMike Heffner 	if ((np = getname(uid = getuid())) != NULL)
959ce73e90SMike Heffner 		return (np);
960c3a8314SMike Heffner 	printf("Cannot associate a name with uid %u\n", (unsigned)uid);
979ce73e90SMike Heffner 	return (NULL);
989b50d902SRodney W. Grimes }
99