xref: /dragonfly/usr.bin/who/utmpentry.h (revision 25606b42)
159a92d18SAlex Hornung /*	$NetBSD: utmpentry.h,v 1.6 2008/04/28 20:24:15 martin Exp $	*/
259a92d18SAlex Hornung 
359a92d18SAlex Hornung /*-
459a92d18SAlex Hornung  * Copyright (c) 2002 The NetBSD Foundation, Inc.
559a92d18SAlex Hornung  * All rights reserved.
659a92d18SAlex Hornung  *
759a92d18SAlex Hornung  * This code is derived from software contributed to The NetBSD Foundation
859a92d18SAlex Hornung  * by Christos Zoulas.
959a92d18SAlex Hornung  *
1059a92d18SAlex Hornung  * Redistribution and use in source and binary forms, with or without
1159a92d18SAlex Hornung  * modification, are permitted provided that the following conditions
1259a92d18SAlex Hornung  * are met:
1359a92d18SAlex Hornung  * 1. Redistributions of source code must retain the above copyright
1459a92d18SAlex Hornung  *    notice, this list of conditions and the following disclaimer.
1559a92d18SAlex Hornung  * 2. Redistributions in binary form must reproduce the above copyright
1659a92d18SAlex Hornung  *    notice, this list of conditions and the following disclaimer in the
1759a92d18SAlex Hornung  *    documentation and/or other materials provided with the distribution.
1859a92d18SAlex Hornung  *
1959a92d18SAlex Hornung  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
2059a92d18SAlex Hornung  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
2159a92d18SAlex Hornung  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
2259a92d18SAlex Hornung  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
2359a92d18SAlex Hornung  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
2459a92d18SAlex Hornung  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
2559a92d18SAlex Hornung  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
2659a92d18SAlex Hornung  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
2759a92d18SAlex Hornung  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
2859a92d18SAlex Hornung  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2959a92d18SAlex Hornung  * POSSIBILITY OF SUCH DAMAGE.
3059a92d18SAlex Hornung  */
3159a92d18SAlex Hornung 
3259a92d18SAlex Hornung #include <utmpx.h>
3359a92d18SAlex Hornung #define WHO_NAME_LEN		_UTX_USERSIZE
3459a92d18SAlex Hornung #define WHO_LINE_LEN		_UTX_LINESIZE
3559a92d18SAlex Hornung #define WHO_HOST_LEN		_UTX_HOSTSIZE
3659a92d18SAlex Hornung 
3759a92d18SAlex Hornung 
3859a92d18SAlex Hornung struct utmpentry {
3959a92d18SAlex Hornung 	char name[WHO_NAME_LEN + 1];
4059a92d18SAlex Hornung 	char line[WHO_LINE_LEN + 1];
4159a92d18SAlex Hornung 	char host[WHO_HOST_LEN + 1];
4259a92d18SAlex Hornung 	struct timeval tv;
4359a92d18SAlex Hornung 	pid_t pid;
4459a92d18SAlex Hornung 	uint16_t term;
4559a92d18SAlex Hornung 	uint16_t exit;
4659a92d18SAlex Hornung 	uint16_t sess;
4714f65205SSascha Wildner 	short type;
4859a92d18SAlex Hornung 	struct utmpentry *next;
4959a92d18SAlex Hornung };
5059a92d18SAlex Hornung 
5159a92d18SAlex Hornung extern int maxname, maxline, maxhost;
5259a92d18SAlex Hornung extern int etype;
5359a92d18SAlex Hornung 
5459a92d18SAlex Hornung /*
5559a92d18SAlex Hornung  * getutentries provides a linked list of struct utmpentry and returns
5659a92d18SAlex Hornung  * the number of entries. The first argument, if not null, names an
57*25606b42SSascha Wildner  * alternate utmpx file to look in.
5859a92d18SAlex Hornung  *
5959a92d18SAlex Hornung  * The memory returned by getutentries belongs to getutentries. The
6059a92d18SAlex Hornung  * list returned (or elements of it) may be returned again later if
61*25606b42SSascha Wildner  * utmpx hasn't changed in the meantime.
6259a92d18SAlex Hornung  *
6359a92d18SAlex Hornung  * endutentries clears and frees the cached data.
6459a92d18SAlex Hornung  */
6559a92d18SAlex Hornung 
6659a92d18SAlex Hornung int getutentries(const char *, struct utmpentry **);
6759a92d18SAlex Hornung void endutentries(void);
68