From 1f6601e1a657d7008f6c15fca71d2dc092f7cb78 Mon Sep 17 00:00:00 2001 From: Thomas Bushnell Date: Thu, 1 Jul 1999 21:04:27 +0000 Subject: 1999-07-01 Thomas Bushnell, BSG * translated.c: New file; guts from fshelp.h. * perms-isowner.c: Likewise. * perms-access.c: Likewise. * prems-checkdirmod.c: Likewise. * touch.c: Likewise. * fshelp.h (fshelp_translated, fshelp_isowner, fshelp_access, fshelp_checkdirmod, fshelp_touch): Replace inline definitions with ordinary declarations. (FSHELP_EI): Removed macro. * fshelp.c: Deleted file. * Makefile (SRCS): Added translated.c, perms-isowner.c, perms-access.c, perms-checkdirmod.c, touch.c. Removed fshelp.c. --- libfshelp/perms-isowner.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 libfshelp/perms-isowner.c (limited to 'libfshelp/perms-isowner.c') diff --git a/libfshelp/perms-isowner.c b/libfshelp/perms-isowner.c new file mode 100644 index 00000000..d1975993 --- /dev/null +++ b/libfshelp/perms-isowner.c @@ -0,0 +1,39 @@ +/* + Copyright (C) 1999 Free Software Foundation, Inc. + Written by Thomas Bushnell, BSG. + + This file is part of the GNU Hurd. + + The GNU Hurd is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. + + The GNU Hurd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */ + +#include "fshelp.h" + +/* Check to see whether USER should be considered the owner of the + file identified by ST. If so, return zero; otherwise return an + appropriate error code. */ +error_t +fshelp_isowner (struct stat *st, struct iouser *user) +{ + /* Permitted if the user has the owner UID, the superuser UID, or if + the user is in the group of the file and has the group ID as + their user ID. */ + if (idvec_contains (user->uids, st->st_uid) + || idvec_contains (user->uids, 0) + || (idvec_contains (user->gids, st->st_gid) + && idvec_contains (user->uids, st->st_gid))) + return 0; + else + return EPERM; +} -- cgit v1.2.3