1 /* Copyright (C) 1991 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If
16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
17 Cambridge, MA 02139, USA. */
24 extern int EXFUN(geteuid
, (NOARGS
));
27 /* Return the username of the caller.
28 If S is not NULL, it points to a buffer of at least L_cuserid bytes
29 into which the name is copied; otherwise, a static buffer is used. */
31 DEFUN(cuserid
, (s
), char *s
)
33 static char name
[L_cuserid
];
34 struct passwd
*pwent
= getpwuid(geteuid());
45 return strcpy(s
, pwent
->pw_name
);