/* SPDX-License-Identifier: LGPL-2.1+ */
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
- Copyright 2011 Michal Schmidt
-***/
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
+#include "generator.h"
#include "log.h"
#include "mkdir.h"
#include "string-util.h"
#include "util.h"
-static const char *arg_dest = "/tmp";
+static const char *arg_dest = NULL;
+
+/* So you are reading this, and might wonder: why is this implemented as a generator rather than as a plain, statically
+ * enabled service that carries appropriate ConditionFileIsExecutable= lines? The answer is this: conditions bypass
+ * execution of a service's binary, but they have no influence on unit dependencies. Thus, a service that is
+ * conditioned out will still act as synchronization point in the dependency tree, and we'd rather not have that for
+ * these two legacy scripts. */
static int add_symlink(const char *service, const char *where) {
const char *from, *to;
- int r;
assert(service);
assert(where);
(void) mkdir_parents_label(to, 0755);
- r = symlink(from, to);
- if (r < 0) {
+ if (symlink(from, to) < 0) {
if (errno == EEXIST)
return 0;
return 1;
}
-int main(int argc, char *argv[]) {
- int ret = EXIT_SUCCESS;
+static int check_executable(const char *path) {
+ assert(path);
+
+ if (access(path, X_OK) < 0) {
+ if (errno == ENOENT)
+ return log_debug_errno(errno, "%s does not exist, skipping.", path);
+ if (errno == EACCES)
+ return log_info_errno(errno, "%s is not marked executable, skipping.", path);
- if (argc > 1 && argc != 4) {
- log_error("This program takes three or no arguments.");
- return EXIT_FAILURE;
+ return log_warning_errno(errno, "Couldn't determine if %s exists and is executable, skipping: %m", path);
}
- if (argc > 1)
- arg_dest = argv[1];
+ return 0;
+}
- log_set_prohibit_ipc(true);
- log_set_target(LOG_TARGET_AUTO);
- log_parse_environment();
- log_open();
+static int run(const char *dest, const char *dest_early, const char *dest_late) {
+ int r = 0, k = 0;
- umask(0022);
+ assert_se(arg_dest = dest);
- if (access(RC_LOCAL_SCRIPT_PATH_START, X_OK) >= 0) {
+ if (check_executable(RC_LOCAL_SCRIPT_PATH_START) >= 0) {
log_debug("Automatically adding rc-local.service.");
- if (add_symlink("rc-local.service", "multi-user.target") < 0)
- ret = EXIT_FAILURE;
+ r = add_symlink("rc-local.service", "multi-user.target");
}
- if (access(RC_LOCAL_SCRIPT_PATH_STOP, X_OK) >= 0) {
+ if (check_executable(RC_LOCAL_SCRIPT_PATH_STOP) >= 0) {
log_debug("Automatically adding halt-local.service.");
- if (add_symlink("halt-local.service", "final.target") < 0)
- ret = EXIT_FAILURE;
+ k = add_symlink("halt-local.service", "final.target");
}
- return ret;
+ return r < 0 ? r : k;
}
+
+DEFINE_MAIN_GENERATOR_FUNCTION(run);