LOGNAME(3C)
NAME
logname − return login name of user
SYNOPSIS
char ∗logname( )
DESCRIPTION
Logname returns a pointer to the null-terminated login name; it extracts the $LOGNAME variable from the user’s environment.
WARNINGS
Logname returns a pointer to static data that is overwritten by each subsequent call.
This method of determining a login name is subject to forgery.
FILES
/etc/profile
SEE ALSO
env(1), login(1), profile(4), environ(5).
STANDARDS CONFORMANCE
logname: SVID2, XPG2
Hewlett-Packard Company — HP-UX Release 7.0: Sept 1989