Updated: 2021/Apr/14


ENDUTENT(3)                Library Functions Manual                ENDUTENT(3)

NAME
     endutent, getutent, getutline, pututline, setutent - user accounting
     database functions

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <utmp.h>

     void
     endutent(void);

     struct utmp *
     getutent(void);

     struct utmpx *
     getutline(const struct utmp *);

     struct utmp *
     pututline(const struct utmp *);

     void
     setutent(void);

DESCRIPTION
     These functions provide access to the utmp(5) user accounting database.

     These interfaces are only provided for compatibility purpuses and have
     been superseeded by endutxent(3), utmpx(5).

     getutent() reads the next entry from the database; if the database was
     not yet open, it also opens it.  setutent() resets the database, so that
     the next getutent() call will get the first entry.  endutent() closes the
     database.

     getutline() returns the next entry which has the same name as specified
     in the ut_line field, or NULL if no match is found.

     pututline() adds the argument utmp(5) entry line to the accounting
     database, replacing a previous entry for the same user if it exists.

   The utmp structure
     The utmp structure has the following definition:

     struct utmp {
             char ut_line[UT_LINESIZE];    /* tty name */
             char ut_name[UT_USERSIZE];    /* login name */
             char ut_host[UT_HOSTSIZE];    /* host name */
             time_t ut_time;               /* time entry was created */
     };

RETURN VALUES
     getutent() returns the next entry, or NULL on failure (end of database or
     problems reading from the database).  getutline() returns the matching
     structure on success, or NULL if no match was found.  pututline() returns
     the structure that was successfully written, or NULL.

SEE ALSO
     logwtmp(3), utmp(5)

STANDARDS
     The endutent(), getutent(), getutline(), pututline(), setutent()
     functions all conform to X/Open Portability Guide Issue 4, Version 2
     ("XPG4.2").

NetBSD 9.99                    February 25, 2021                   NetBSD 9.99