1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
34 #include "conf-files.h"
36 static int delete_rule(const char *rule) {
37 char *x, *fn = NULL, *e;
42 if (!(x = strdup(rule)))
45 e = strchrnul(x+1, x[0]);
48 asprintf(&fn, "/proc/sys/fs/binfmt_misc/%s", x+1);
54 r = write_one_line_file(fn, "-1");
60 static int apply_rule(const char *rule) {
65 if ((r = write_one_line_file("/proc/sys/fs/binfmt_misc/register", rule)) < 0) {
66 log_error("Failed to add binary format: %s", strerror(-r));
73 static int apply_file(const char *path, bool ignore_enoent) {
79 if (!(f = fopen(path, "re"))) {
80 if (ignore_enoent && errno == ENOENT)
83 log_error("Failed to open file '%s', ignoring: %m", path);
87 log_debug("apply: %s\n", path);
92 if (!fgets(l, sizeof(l), f)) {
96 log_error("Failed to read file '%s', ignoring: %m", path);
106 if (strchr(COMMENTS, *p))
109 if ((k = apply_rule(p)) < 0 && r == 0)
119 int main(int argc, char *argv[]) {
122 log_set_target(LOG_TARGET_AUTO);
123 log_parse_environment();
131 for (i = 1; i < argc; i++) {
134 k = apply_file(argv[i], false);
141 r = conf_files_list(&files, ".conf", NULL,
144 "/usr/local/lib/binfmt.d",
146 #ifdef HAVE_SPLIT_USR
151 log_error("Failed to enumerate binfmt.d files: %s", strerror(-r));
155 /* Flush out all rules */
156 write_one_line_file("/proc/sys/fs/binfmt_misc/status", "-1");
158 STRV_FOREACH(f, files) {
161 k = apply_file(*f, true);
169 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;