HP-UX Reference (11i v3 07/02) - 3 Library Functions A-M (vol 6)

l
logname(3C) logname(3C)
NAME
logname( ) - return login name of user
SYNOPSIS
#include <unistd.h>
char *logname(void);
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), thread_safety(5).
STANDARDS CONFORMANCE
logname(): SVID2, XPG2
768 Hewlett-Packard Company 1 HP-UX 11i Version 3: February 2007