определения базы данных учета пользователей (user accounting database definitions)
Пролог (Prolog)
This manual page is part of the POSIX Programmer's Manual. The
Linux implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
Имя (Name)
utmpx.h — user accounting database definitions
Синопсис (Synopsis)
#include <utmpx.h>
Описание (Description)
The <utmpx.h> header shall define the utmpx structure that shall
include at least the following members:
char ut_user[] User login name.
char ut_id[] Unspecified initialization process identifier.
char ut_line[] Device name.
pid_t ut_pid Process ID.
short ut_type Type of entry.
struct timeval ut_tv Time entry was made.
The <utmpx.h> header shall define the pid_t type through typedef,
as described in <sys/types.h>.
The <utmpx.h> header shall define the timeval structure as
described in <sys/time.h>.
Inclusion of the <utmpx.h> header may also make visible all
symbols from <sys/time.h>.
The <utmpx.h> header shall define the following symbolic
constants as possible values for the ut_type member of the utmpx
structure:
EMPTY No valid user accounting information.
BOOT_TIME Identifies time of system boot.
OLD_TIME Identifies time when system clock changed.
NEW_TIME Identifies time after system clock changed.
USER_PROCESS Identifies a process.
INIT_PROCESS Identifies a process spawned by the init process.
LOGIN_PROCESS Identifies the session leader of a logged-in user.
DEAD_PROCESS Identifies a session leader who has exited.
The following shall be declared as functions and may also be
defined as macros. Function prototypes shall be provided.
void endutxent(void);
struct utmpx *getutxent(void);
struct utmpx *getutxid(const struct utmpx *);
struct utmpx *getutxline(const struct utmpx *);
struct utmpx *pututxline(const struct utmpx *);
void setutxent(void);
The following sections are informative.
Использование в приложениях (Application usage)
None.
Обоснование (Rationale)
None.
Будущие направления (Future directions)
None.
Смотри также (See also)
sys_time.h(0p), sys_types.h(0p)
The System Interfaces volume of POSIX.1‐2017, endutxent(3p)
