GETLOGIN(3) GETLOGIN(3)
NAME
getlogin - get login name
SYNOPSIS
char *getlogin();
DESCRIPTION
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 typewriter, it returns NULL. The correct procedure for
determining the login name is to first call getlogin and if
it fails, to call getpwuid.
FILES
/etc/utmp
SEE ALSO
getpwent(3), getgrent(3), utmp(5)
DIAGNOSTICS
Returns NULL (0) if name not found.
BUGS
The return values point to static data whose content is
overwritten by each call.