88 lines
2.4 KiB
C
88 lines
2.4 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2011 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <errno.h>
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#include <string.h>
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#include "logind-acl.h"
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#include "util.h"
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#include "log.h"
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int main(int argc, char *argv[]) {
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int r;
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const char *path, *seat;
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char *p, *active_uid = NULL;
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unsigned long ul;
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log_set_target(LOG_TARGET_AUTO);
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log_parse_environment();
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log_open();
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if (argc < 2 || argc > 3) {
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log_error("This program expects one or two arguments.");
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r = -EINVAL;
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goto finish;
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}
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path = argv[1];
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seat = argc >= 3 ? argv[2] : "seat0";
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p = strappend("/run/systemd/seats/", seat);
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if (!p) {
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log_error("Out of memory.");
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goto finish;
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}
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r = parse_env_file(p, NEWLINE,
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"ACTIVE_UID", &active_uid,
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NULL);
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free(p);
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if (r < 0) {
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if (errno == ENOENT) {
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r = 0;
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goto finish;
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}
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log_error("Failed to read seat data for %s: %s", seat, strerror(-r));
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goto finish;
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}
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r = safe_atolu(active_uid, &ul);
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if (r < 0) {
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log_error("Failed to parse active UID value %s: %s", active_uid, strerror(-r));
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goto finish;
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}
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r = devnode_acl(path, true, false, 0, true, (uid_t) ul);
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if (r < 0) {
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log_error("Failed to apply ACL on %s: %s", path, strerror(-r));
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goto finish;
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}
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r = 0;
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finish:
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free(active_uid);
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return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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