src/utmpx/utmpx.h

/* Common utmpx implementation
 * Copyright 2015-2016 Rivoreo
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 */

#ifndef _UTMPX_H
#define _UTMPX_H

#include <sys/time.h>

#define EMPTY		0

#define RUN_LVL		1
#define BOOT_TIME	2
#define NEW_TIME	3
#define OLD_TIME	4

#define INIT_PROCESS	5
#define LOGIN_PROCESS	6
#define USER_PROCESS	7
#define DEAD_PROCESS	8

#define UTMPX_FILE "/var/run/utmpx"
#define WTMPX_FILE "/var/log/wtmpx"

#ifdef __cplusplus
extern "C" {
#endif

#define _UTX_LINE_SIZE 16
#define _UTX_NAME_SIZE 16
#define _UTX_HOST_SIZE 256
#define _UTX_ID_SIZE 2

struct utmpx {
	short int ut_type;
	pid_t ut_pid;
	char ut_line[_UTX_LINE_SIZE];
	char ut_id[_UTX_ID_SIZE];
	int ut_session;
	char ut_user[_UTX_NAME_SIZE];
	char ut_host[_UTX_HOST_SIZE];
	long ut_addr;
	struct timeval ut_tv;
};

#ifndef ut_name
#define ut_name ut_user
#endif
#ifndef ut_time
#define ut_time ut_tv.tv_sec
#endif

extern void endutxent(void);
extern struct utmpx *getutxent(void);
extern struct utmpx *getutxid(const struct utmpx *id);
extern struct utmpx *getutxline(const struct utmpx *line);
extern struct utmpx *pututxline(const struct utmpx *utmpx);
extern void setutxent(void);
extern int utmpxname(const char *file);
extern void updwtmpx(const char *file, const struct utmpx *utmpx);

#ifdef __cplusplus
}
#endif

#endif