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îáú÷áîéå
wtmp - ÆopÍaÔÙ utmp É wtmp.
óéîôáëóéó
#include <sys/types.h> #include <utmp.h>
ïðéóáîéå
æaÊÌÙ, ËoÔopÙe coÄepÖaÔ ÉÎÆopÍaÃÉÀ o×ÌaÄeÌØÃe, ÔeËyÝaÑ
ÉÎÆopÍaÃÉÑ ÄÌÑ ÔaËÉx ËoÍaÎÄ, ËaË who(1), write(1) É
login(1), ÉcÐoÌØÚyÀÔ cÔpyËÔypy, oÐÉcaÎÎyÀ × utmp.h:
#define UTMP_FILE "/etc/utmp"
#define WTMP_FILE "/etc/wtmp"
#define ut_name ut_user
struct utmp{
char ut_user[8]; /* ÉÍÑ ÐoÌØÚo×aÔeÌÑ*/
char ut_id[4]; /* oÂÙÞÎo cÔpoËa #*/
char ut_line[12]; /* yÍÑ ycÔpoÊcÔ×a (ËoÎcoÌØ, ÐpÉÎÔep lnxx*/
short ut_pid; /* ÎoÍep ÐpoÃecca*/
short ut_type; /* ÔÉÐ ×xoÄa*/
struct exit_status{
short e_termination; /* cÔaÔyc Úa×epÛeÎÉÑ ÐpoÃecca*/
short e_exit; /* cÔaÔyc Úa×epÛeÎÉÑ ÐpoÃecca*/
}
time_t ut_time; /* ×peÍÑ ×xoÄa*/
};
#define EMPTY 0
#define RUN_LVL 1
#define BOOT_TIME 2
#define OLD_TIME 3
#define NEW_TIME 4
#define INIT_PROCESS 5 /* ÐpoÃecc ÐopoÖÄeÎ ÐpoÃeÄypoÊ "init"*/
#define LOGIN_PROCESS 6 /* ÐpoÃecc "getty" oÖÉÄaeÔ ÉÍÑ */
#define USER_PROCESS 7 /* ÐoÌØÚo×aÔeÌØcËÉÊ ÐpoÃecc*/
#define DEAD_PROCESS 8
#define ACCOUNING 9
#define UTMAXTYPE ACCOUNTING /* ÎaÉÂoÌØÛaÑ ×oÚÍoÖÎaÑ
×eÌÉÞÉÎa ut_type*/
/* CÐeÃÉaÌØÎÙe cÔpoËÉ ÆopÍaÔo×, ÉcÐoÌØÚyeÍÙe × ÐoÌe "ut_line", */
/* ËoÇÄa ÔeËyÝÉÍ Ñ×ÌÑeÔcÑ ÎeËoÔopÙÊ ÄpyÇoÊ ÐpoÃecc. */
/* CÔpoËa ÄÌÑ ÐoÌÑ "ut_line" Îe ÍoÖeÔ ÂÙÔØ ÂoÌee 11 cÉÍ×oÌo× */
/* + ÎyÌe×oÊ cÉÍ×oÌ ËaË ÐpÉÚÎaË ËoÎÃa ÆaÊÌa */
æáêìù
/usr/include/utmp.h /etc/utmp /etc/wtmp
óí. ôáëöå
getut(2), login(1), who(1), write(1)
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