/* * Copyright (c) 1988 Regents of the University of California. * All rights reserved. * * %sccs.include.redist.c% */ #ifndef lint char copyright[] = "@(#) Copyright (c) 1988 Regents of the University of California.\n\ All rights reserved.\n"; #endif /* not lint */ #ifndef lint static char sccsid[] = "@(#)whoami.c 5.5 (Berkeley) 03/02/91"; #endif /* not lint */ #include #include main() { struct passwd *p; uid_t uid; uid = geteuid(); if (!(p = getpwuid(uid))) { printf("whoami: no login associated with uid %u.\n", uid); exit(1); } printf("%s\n", p->pw_name); exit(0); }