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https://github.com/isc-projects/bind9.git
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2bf7921c7e
This commit converts the license handling to adhere to the REUSE
specification. It specifically:
1. Adds used licnses to LICENSES/ directory
2. Add "isc" template for adding the copyright boilerplate
3. Changes all source files to include copyright and SPDX license
header, this includes all the C sources, documentation, zone files,
configuration files. There are notes in the doc/dev/copyrights file
on how to add correct headers to the new files.
4. Handle the rest that can't be modified via .reuse/dep5 file. The
binary (or otherwise unmodifiable) files could have license places
next to them in <foo>.license file, but this would lead to cluttered
repository and most of the files handled in the .reuse/dep5 file are
system test files.
(cherry picked from commit 58bd26b6cf)
103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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/*! \file
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* \brief
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* This file contains the OS-independent functionality of the API.
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*/
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#include <stdbool.h>
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#include <isc/fsaccess.h>
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#include <isc/print.h>
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#include <isc/result.h>
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#include <isc/util.h>
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/*!
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* Shorthand. Maybe ISC__FSACCESS_PERMISSIONBITS should not even be in
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* <isc/fsaccess.h>. Could check consistency with sizeof(isc_fsaccess_t)
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* and the number of bits in each function.
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*/
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#define STEP (ISC__FSACCESS_PERMISSIONBITS)
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#define GROUP (STEP)
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#define OTHER (STEP * 2)
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void
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isc_fsaccess_add(int trustee, int permission, isc_fsaccess_t *access) {
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REQUIRE(trustee <= 0x7);
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REQUIRE(permission <= 0xFF);
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if ((trustee & ISC_FSACCESS_OWNER) != 0) {
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*access |= permission;
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}
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if ((trustee & ISC_FSACCESS_GROUP) != 0) {
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*access |= (permission << GROUP);
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}
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if ((trustee & ISC_FSACCESS_OTHER) != 0) {
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*access |= (permission << OTHER);
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}
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}
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void
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isc_fsaccess_remove(int trustee, int permission, isc_fsaccess_t *access) {
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REQUIRE(trustee <= 0x7);
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REQUIRE(permission <= 0xFF);
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if ((trustee & ISC_FSACCESS_OWNER) != 0) {
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*access &= ~permission;
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}
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if ((trustee & ISC_FSACCESS_GROUP) != 0) {
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*access &= ~(permission << GROUP);
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}
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if ((trustee & ISC_FSACCESS_OTHER) != 0) {
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*access &= ~(permission << OTHER);
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}
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}
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static isc_result_t
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check_bad_bits(isc_fsaccess_t access, bool is_dir) {
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isc_fsaccess_t bits;
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/*
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* Check for disallowed user bits.
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*/
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if (is_dir) {
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bits = ISC_FSACCESS_READ | ISC_FSACCESS_WRITE |
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ISC_FSACCESS_EXECUTE;
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} else {
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bits = ISC_FSACCESS_CREATECHILD | ISC_FSACCESS_ACCESSCHILD |
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ISC_FSACCESS_DELETECHILD | ISC_FSACCESS_LISTDIRECTORY;
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}
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/*
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* Set group bad bits.
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*/
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bits |= bits << STEP;
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/*
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* Set other bad bits.
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*/
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bits |= bits << STEP;
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if ((access & bits) != 0) {
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if (is_dir) {
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return (ISC_R_NOTFILE);
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} else {
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return (ISC_R_NOTDIRECTORY);
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}
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}
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return (ISC_R_SUCCESS);
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}
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