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#include <sys/types.h>
#include <utmp.h>
#include <regex.h>
#include "config.h"
#define for_each(e,l) for((e)=(l).next; (e)!=(void *) &(l); (e)=(e)->next)
#define addto_list(e,l) {(e)->prev=(l).prev; \
(e)->prev->next=(e); \
(e)->next=(typeof(e))&l; \
(l).prev=(e);}
#define delfrom_list(e,l) {(e)->prev->next=(e)->next; \
(e)->next->prev=(e)->prev; }
#define dellist(e,l) { void *p; \
for((e)=(l).next; (e)!=(void *) &(l); (e)=p){ \
p=(e)->next; \
delfrom_list((e),(l)); \
free((e)); \
} \
}
#define dellist1(e,l) { void *p; \
for((e)=(l).next; (e)!=(void *) &(l); (e)=p){ \
p=(e)->next; \
delfrom_list((e),(l)); \
if((e)->msg) free((e)->msg); \
free((e)); \
} \
}
#define IS_EMPTY(l) ((l)->next == l)
struct min_idle_host
{
struct tty_t *tty;
time_t min_idle;
};
extern struct list_head entry_l;
#define USER_TYPE 1
#define HOST_TYPE 2
#define TTY_TYPE 3
#define GLOBAL_TYPE 4
#define TYPES_NR GLOBAL_TYPE+1
#define IN_MSG 0
#define OUT_MSG 1
#define LAST_MSG 2 /* if it was last login */
#define MSG_NR 3
#define IN_EXEC 0
#define OUT_EXEC 1
#define IN_REPORT 0x1
#define OUT_REPORT 0x2
#define WELCOME_REPORT 0x4
#define IN_BEEP 0x8
#define OUT_BEEP 0x10
#define CENTER_MSG 0x20
struct entry_t
{
struct entry_t *next;
struct entry_t *prev;
int type; /* type of the key: user,host,tty */
int flags; /* see defines above */
char *key; /* can be username, host or tty */
regex_t reg; /* precompiled key for regex matching */
char *msg[MSG_NR]; /* messages to print taken from config */
int count; /* current number of logins */
struct min_idle_host h; /* used only at startup to report logins*/
int hold; /* number of second to hold a mesasge */
char *ext_exec[OUT_EXEC+1]; /* external programs to run */
};
/*
* to check out logouts we have to remember tty
*/
struct tty_t
{
struct tty_t *next;
struct tty_t *prev;
char *tty; //
char *name; // taken from utmp struct at each login
char *host; //
struct entry_t *entry;
};
struct list_head
{
void *next;
void *prev;
};
/*
* Keeps global setting as specified in configuration file.
*/
struct defaults {
int flags;
int hold;
char *msg[MSG_NR];
char *ext_exec[OUT_EXEC+1];
};
extern struct defaults globals[];
int read_conf(char *);
void show_conf();
void clear_conf(void);
struct entry_t *new_entry(char **, int, int);
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