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-rw-r--r--src/systemd-rc-local-generator/rc-local-generator.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/src/systemd-rc-local-generator/rc-local-generator.c b/src/systemd-rc-local-generator/rc-local-generator.c
new file mode 100644
index 0000000000..618bbe428d
--- /dev/null
+++ b/src/systemd-rc-local-generator/rc-local-generator.c
@@ -0,0 +1,101 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+ Copyright 2011 Michal Schmidt
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "alloc-util.h"
+#include "log.h"
+#include "mkdir.h"
+#include "string-util.h"
+#include "util.h"
+
+#ifndef RC_LOCAL_SCRIPT_PATH_START
+#define RC_LOCAL_SCRIPT_PATH_START "/etc/rc.d/rc.local"
+#endif
+
+#ifndef RC_LOCAL_SCRIPT_PATH_STOP
+#define RC_LOCAL_SCRIPT_PATH_STOP "/sbin/halt.local"
+#endif
+
+static const char *arg_dest = "/tmp";
+
+static int add_symlink(const char *service, const char *where) {
+ _cleanup_free_ char *from = NULL, *to = NULL;
+ int r;
+
+ assert(service);
+ assert(where);
+
+ from = strjoin(SYSTEM_DATA_UNIT_PATH, "/", service, NULL);
+ if (!from)
+ return log_oom();
+
+ to = strjoin(arg_dest, "/", where, ".wants/", service, NULL);
+ if (!to)
+ return log_oom();
+
+ mkdir_parents_label(to, 0755);
+
+ r = symlink(from, to);
+ if (r < 0) {
+ if (errno == EEXIST)
+ return 0;
+
+ return log_error_errno(errno, "Failed to create symlink %s: %m", to);
+ }
+
+ return 1;
+}
+
+int main(int argc, char *argv[]) {
+ int r = EXIT_SUCCESS;
+
+ if (argc > 1 && argc != 4) {
+ log_error("This program takes three or no arguments.");
+ return EXIT_FAILURE;
+ }
+
+ if (argc > 1)
+ arg_dest = argv[1];
+
+ log_set_target(LOG_TARGET_SAFE);
+ log_parse_environment();
+ log_open();
+
+ umask(0022);
+
+ if (access(RC_LOCAL_SCRIPT_PATH_START, X_OK) >= 0) {
+ log_debug("Automatically adding rc-local.service.");
+
+ if (add_symlink("rc-local.service", "multi-user.target") < 0)
+ r = EXIT_FAILURE;
+ }
+
+ if (access(RC_LOCAL_SCRIPT_PATH_STOP, X_OK) >= 0) {
+ log_debug("Automatically adding halt-local.service.");
+
+ if (add_symlink("halt-local.service", "final.target") < 0)
+ r = EXIT_FAILURE;
+ }
+
+ return r;
+}