1 files changed, 115 insertions, 0 deletions
diff --git a/src/rc-local-generator/rc-local-generator.c b/src/rc-local-generator/rc-local-generator.c
new file mode 100644
index 0000000000..c219e77047
--- /dev/null
+++ b/src/rc-local-generator/rc-local-generator.c
@@ -0,0 +1,115 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  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 "log.h"
+#include "util.h"
+#include "mkdir.h"
+
+#if defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
+#define SCRIPT_PATH_START "/etc/rc.d/rc.local"
+#elif defined(TARGET_SUSE)
+#define SCRIPT_PATH_START "/etc/init.d/boot.local"
+#endif
+
+#define SCRIPT_PATH_STOP "/sbin/halt.local"
+
+const char *arg_dest = "/tmp";
+
+static int add_symlink(const char *service, const char *where) {
+        char *from = NULL, *to = NULL;
+        int r;
+
+        assert(service);
+
+        asprintf(&from, SYSTEM_DATA_UNIT_PATH "/%s", service);
+        asprintf(&to, "%s/%s.wants/%s", arg_dest, where, service);
+
+        if (!from || !to) {
+                r = log_oom();
+                goto finish;
+        }
+
+        mkdir_parents_label(to, 0755);
+
+        r = symlink(from, to);
+        if (r < 0) {
+                if (errno == EEXIST)
+                        r = 0;
+                else {
+                        log_error("Failed to create symlink from %s to %s: %m", from, to);
+                        r = -errno;
+                }
+        }
+
+finish:
+        free(from);
+        free(to);
+
+        return r;
+}
+
+static bool file_is_executable(const char *f) {
+        struct stat st;
+
+        if (stat(f, &st) < 0)
+                return false;
+
+        return S_ISREG(st.st_mode) && (st.st_mode & 0111);
+}
+
+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 (file_is_executable(SCRIPT_PATH_START)) {
+                log_debug("Automatically adding rc-local.service.");
+
+                if (add_symlink("rc-local.service", "multi-user.target") < 0)
+                        r = EXIT_FAILURE;
+        }
+
+        if (file_is_executable(SCRIPT_PATH_STOP)) {
+                log_debug("Automatically adding halt-local.service.");
+
+                if (add_symlink("halt-local.service", "final.target") < 0)
+                        r = EXIT_FAILURE;
+        }
+
+        return r;
+}