108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/* Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _UTMPD_PRIVATE_H
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#define _UTMPD_PRIVATE_H 1
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#include <time.h>
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#include <utmp.h>
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/* The number of connections we allow. */
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#ifndef MAX_CONNECTIONS
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#define MAX_CONNECTIONS 16
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#endif
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typedef struct utmp_database
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{
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int fd;
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int old_fd;
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char *file;
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char *old_file;
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time_t mtime;
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} utmp_database;
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/* The databases we handle. */
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extern utmp_database *utmp_db;
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extern utmp_database *wtmp_db;
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typedef struct client_connection
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{
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int sock;
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/* Access permissions. */
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int access;
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/* Read pointer. */
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void *read_base;
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void *read_ptr;
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void *read_end;
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/* Write buffer. */
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void *write_base;
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void *write_ptr;
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void *write_end;
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/* Database to use for this connection. */
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utmp_database *database;
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/* Position pointer. */
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int position;
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/* Last read entry. */
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struct utmp last_entry;
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/* Pointers to the next and previous connections in the list. */
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struct client_connection *next;
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struct client_connection *prev;
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} client_connection;
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/* This variable indicates if we have forked. If set, we log messages
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via the system logger. Otherwise we simply print the program name
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and the message to standard error. */
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extern int forked;
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/* Database functions. */
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utmp_database *open_database (const char *file, const char *old_file);
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int synchronize_database (utmp_database *database);
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void close_database (utmp_database *database);
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int read_entry (utmp_database *database, int position, struct utmp *entry);
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int write_entry (utmp_database *database, int position,
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const struct utmp *entry);
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int append_entry (utmp_database *database, const struct utmp *entry);
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int read_old_entry (utmp_database *database, int position, struct utmp *entry);
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int write_old_entry (utmp_database *database, int position,
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const struct utmp *entry);
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/* Connection oriented functions. */
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client_connection *accept_connection (int sock, int access);
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client_connection *find_connection (int sock);
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void close_connection (client_connection *connection);
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int read_data (client_connection *connection);
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int write_data (client_connection *connection);
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void error (int status, int errnum, const char *message, ...);
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void warning (int errnum, const char *message, ...);
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#endif /* utmpd-private.h */
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