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/* Away - terminal locking program
* Copyright (C) 1999-2002 Cameron Moore and others
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Or try here: http://www.fsf.org/copyleft/gpl.html
*
* $Id: away.h,v 1.4 2002/08/12 00:33:03 hrothgar Exp $
*/
#ifndef _AWAY_H
#define _AWAY_H
/* version and contacts */
#define VERSION "0.9.5"
#define MLIST "away@unbeatenpath.net"
/* Separator for conf file */
#define WHITESPACE " \t\n"
/* macro */
#define APPEND_MAILBOX(root,path,desc) root=snocString((root),(path),(desc))
/* Max filename length */
#define FILE_NAME_LEN 1024
/* ENV variable names */
#define AWAY_RCFILE "AWAY_RCFILE"
#define AWAY_NORCFILE "AWAY_NORCFILE"
#define AWAY_TIME "AWAY_TIME"
#define AWAY_NOTIME "AWAY_NOTIME"
#define AWAY_MAIL "AWAY_MAIL"
#define AWAY_PERSIST "AWAY_PERSIST"
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <paths.h>
#include <time.h>
#include <pwd.h>
#include <ctype.h>
#include <signal.h>
#include <getopt.h>
#include <pthread.h>
#include <sys/stat.h>
#include <security/pam_appl.h>
#include <security/pam_misc.h>
#include <termios.h>
/* Default conf file name */
char *rcfile = ".awayrc";
/* min mail check interval */
const int MIN_TIME = 10;
/* Default settings */
int TIME = 300;
short PERSIST = 1;
short CHECK_MAIL = 1;
/* flags to allow command line options to override conf file options */
short TIME_OP = 0;
short PERSIST_OP = 0;
short RCFILE_OP = 0;
short MAIL_OP = 0;
short NORCFILE_OP = 0;
/* turned on while trying to authenticate the user */
short pam_active = 0;
/* mail was found */
short mail_found = 0;
/* the user has already been notified */
short notified = 0;
/* name of mailbox new mail was found in */
char *found_in = NULL;
/* PAM conversation struct */
static struct pam_conv conv = { misc_conv, NULL };
/* rc file commands */
typedef enum {
oMail,
oMaildir,
oMailbox,
oPersist,
oTime,
oBadCmd
} CmdCodes;
static struct {
const char *name;
CmdCodes opcode;
} commands[] = {
{ "mail", oMail },
{ "maildir", oMaildir },
{ "mailbox", oMailbox },
{ "persist", oPersist },
{ "time", oTime },
{ NULL, 0 }
};
/* mailbox linked list */
typedef struct mailbox {
char *path; /* path to mailbox */
char *desc; /* description of mailbox */
time_t mtime; /* last modified time (new mail) */
time_t atime; /* last accessed time (read mail) */
struct mailbox *next;
} Mailbox;
/* command line options for getopt */
static struct option long_options[] =
{
{"help", 0, 0, 'h'},
{"mail", 0, 0, 'c'},
{"message", 0, 0, 'm'},
{"nomail", 0, 0, 'C'},
{"nopersist", 0, 0, 'P'},
{"norcfile", 0, 0, 'F'},
{"notime", 0, 0, 'T'},
{"persist", 0, 0, 'p'},
{"rcfile", 1, 0, 'f'},
{"time", 1, 0, 't'},
{"version", 0, 0, 'v'},
{0, 0, 0, 0}
};
/* prototypes */
void master(void);
short authenticate(char *username);
char *make_path(char *dirs, char *filename);
void print_version(void);
void short_help(char *argv0);
void ext_help(char *argv0);
void stall(void);
char *make_time(void);
void salutations(void);
short new_mail(Mailbox *mb);
void mail_thread_f(Mailbox **root);
static CmdCodes get_opcode(const char *cp, const char *filename, int linenum);
static void *my_malloc(int n);
static Mailbox *make_cell(void);
static Mailbox *snocString(Mailbox *root, char *path, char *desc);
static void add_mailbox(Mailbox **list, char *path, char *desc);
void set_defaults(Mailbox **root, char *name);
void read_config(Mailbox **root, char *homedir, char *username);
void re_exec(int argc, char *argv[], int opt_cnt, short as_mesg);
void check_env(void);
void free_mailboxes(Mailbox *root);
#endif /* _AWAY_H */
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