can/group.c
2026-02-05 22:05:32 +01:00

37 lines
1.3 KiB
C

/* SPDX-License-Identifier: GPL-3.0-only */
/* SPDX-FileCopyrightText: 2026 afiw <afiw@linuxposting.xyz> */
/*
* can - query filesystem permissions
* Copyright (C) 2026 afiw <afiw@linuxposting.xyz>
*
* This program 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, exclusively version 3 of the License.
*
* This program 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, see <https://www.gnu.org/licenses/>.
*/
#include <err.h>
#include <grp.h>
#include <stdlib.h>
#include <sys/stat.h>
#include "action.h"
#include "group.h"
bool can_group(struct group* gr, enum action action, char const* path) {
struct stat st;
if (stat(path, &st) == -1) {
err(EXIT_FAILURE, "%s", path); }
if (st.st_mode & other_bit_of_action(action)) {
return true; }
if (gr->gr_gid == st.st_gid) {
if (st.st_mode & group_bit_of_action(action)) {
return true; } }
return false; }