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 user ID 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 call cuserid, or to call getlogin and if it fails, to call getpwuid.

FILES

/etc/utmp

SEE ALSO

cuserid(3S), getgrent(3C), getpwent(3C), utmp(5). 

DIAGNOSTICS

Returns NULL if name not found. 

BUGS

The return values point to static data whose content is overwritten by each call.