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/* SPDX-License-Identifier: LGPL-2.1+ */
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include "log.h"
#include "mkdir.h"
#include "string-util.h"
#include "util.h"
static const char *arg_dest = "/tmp";
static int add_symlink(const char *service, const char *where) {
const char *from, *to;
int r;
assert(service);
assert(where);
from = strjoina(SYSTEM_DATA_UNIT_PATH "/", service);
to = strjoina(arg_dest, "/", where, ".wants/", service);
(void) 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 ret = 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_prohibit_ipc(true);
log_set_target(LOG_TARGET_AUTO);
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)
ret = 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)
ret = EXIT_FAILURE;
}
return ret;
}
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