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/>.
35 static int delete_rule(const char *rule) {
36 char *x, *fn = NULL, *e;
41 if (!(x = strdup(rule)))
44 e = strchrnul(x+1, x[0]);
47 asprintf(&fn, "/proc/sys/fs/binfmt_misc/%s", x+1);
53 r = write_one_line_file(fn, "-1");
59 static int apply_rule(const char *rule) {
64 if ((r = write_one_line_file("/proc/sys/fs/binfmt_misc/register", rule)) < 0) {
65 log_error("Failed to add binary format: %s", strerror(-r));
72 static int apply_file(const char *path, bool ignore_enoent) {
78 if (!(f = fopen(path, "re"))) {
79 if (ignore_enoent && errno == ENOENT)
82 log_error("Failed to open file '%s', ignoring: %m", path);
86 log_debug("apply: %s\n", path);
91 if (!fgets(l, sizeof(l), f)) {
95 log_error("Failed to read file '%s', ignoring: %m", path);
105 if (strchr(COMMENTS, *p))
108 if ((k = apply_rule(p)) < 0 && r == 0)
118 int main(int argc, char *argv[]) {
121 log_set_target(LOG_TARGET_AUTO);
122 log_parse_environment();
130 for (i = 1; i < argc; i++) {
133 k = apply_file(argv[i], false);
140 r = conf_files_list(&files, ".conf",
143 "/usr/local/lib/binfmt.d",
145 #ifdef HAVE_SPLIT_USR
150 log_error("Failed to enumerate binfmt.d files: %s", strerror(-r));
154 /* Flush out all rules */
155 write_one_line_file("/proc/sys/fs/binfmt_misc/status", "-1");
157 STRV_FOREACH(f, files) {
160 k = apply_file(*f, true);
168 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;