добавить запись в файл wtmp (append an entry to the wtmp file)
Имя (Name)
updwtmp, logwtmp - append an entry to the wtmp file
Синопсис (Synopsis)
#include <utmp.h>
void updwtmp(const char *wtmp_file, const struct utmp *ut);
void logwtmp(const char *line, const char *name, const char *host);
For logwtmp(), link with -lutil.
Описание (Description)
updwtmp() appends the utmp structure ut to the wtmp file.
logwtmp() constructs a utmp structure using line, name, host,
current time, and current process ID. Then it calls updwtmp() to
append the structure to the wtmp file.
Файлы (Files)
/var/log/wtmp
database of past user logins
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌─────────────────────┬───────────────┬──────────────────────────┐
│Interface │ Attribute │ Value │
├─────────────────────┼───────────────┼──────────────────────────┤
│updwtmp(), logwtmp() │ Thread safety │ MT-Unsafe sig:ALRM timer │
└─────────────────────┴───────────────┴──────────────────────────┘
Стандарты (Conforming to)
Not in POSIX.1. Present on Solaris, NetBSD, and perhaps other
systems.
Примечание (Note)
For consistency with the other "utmpx" functions (see
getutxent(3)), glibc provides (since version 2.1):
#include <utmpx.h>
void updwtmpx (const char *wtmpx_file, const struct utmpx *utx);
This function performs the same task as updwtmp(), but differs in
that it takes a utmpx structure as its last argument.
Смотри также (See also)
getutxent(3), wtmp(5)
