@(#)getlogin.3 6.2 (Berkeley) 05/09/86

.AT 3 getlogin - get login name char *getlogin() Getlogin returns a pointer to the login name as found in /etc/utmp . It may be used in conjunction with getpwnam to locate the correct password file entry when the same userid is shared by several login names.

If getlogin is called within a process that is not attached to a terminal, or if there is no entry in /etc/utmp for the process's terminal, getlogin returns a NULL pointer (0). A reasonable procedure for determining the login name is to first call getlogin and if it fails, to call getpwuid ( getuid ()).

/etc/utmp getpwent(3), utmp(5), ttyslot(3) Returns a NULL pointer (0) if name not found. The return values point to static data whose content is overwritten by each call.