UPDWTMP(3)

NAME
       updwtmp, logwtmp - append an entry to the wtmp file

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);

DESCRIPTION
       updwtmp()  appends the utmp structure ut to the wtmp file.

       logwtmp() constructs an utmp structure using  line,  name,
       host,  current time and current process id.  Then it calls
       updwtmp() to append the structure to the utmp file.

AVAILABILITY
       Both functions are available under glibc2, but  not  under
       glibc1  or  libc.   However,  logwtmp()  occurs in the old
       libbsd.

FILES
       /var/log/wtmp  database of past user logins

SEE ALSO
       utmp(5)