/*

 * Heirloom mailx - a mail user agent derived from Berkeley Mail.

 *

 * Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.

 */

/*

 * 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. All advertising materials mentioning features or use of this software

 *    must display the following acknowledgement:

 *	This product includes software developed by the University of

 *	California, Berkeley and its contributors.

 * 4. 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.

 */

#ifndef lint

#ifdef	DOSCCS

static char sccsid[] = "@(#)v7.local.c	2.10 (gritter) 3/4/06";

#endif

#endif /* not lint */

/*

 * Mail -- a mail program

 *

 * Version 7

 *

 * Local routines that are installation dependent.

 */

#include "rcv.h"

#include "extern.h"

#include <sys/stat.h>

#include <fcntl.h>

#include <unistd.h>

/*

 * Locate the user's mailbox file (ie, the place where new, unread

 * mail is queued).

 */

void

findmail(char *user, int force, char *buf, int size)

{

	char *mbox, *cp;

	if (strcmp(user, myname) == 0 && !force &&

			(cp = value("folder")) != NULL &&

			which_protocol(cp) == PROTO_IMAP) {

		snprintf(buf, size, "%s/INBOX", protbase(cp));

	} else if (force || (mbox = value("MAIL")) == NULL) {

		snprintf(buf, size, "%s/%s", MAILSPOOL, user);

	} else {

		strncpy(buf, mbox, size);

		buf[size-1]='\0';

	}

}

/*

 * Get rid of the queued mail.

 */

void 

demail(void)

{

	if (value("keep") != NULL || rm(mailname) < 0)

		close(creat(mailname, 0600));

}

/*

 * Discover user login name.

 */

char *

username(void)

{

	char *np;

	uid_t uid;

	if ((np = getenv("USER")) != NULL)

		return np;

	if ((np = getname(uid = getuid())) != NULL)

		return np;

	printf(catgets(catd, CATSET, 201,

		"Cannot associate a name with uid %d\n"), (int)uid);

	return NULL;

}