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/*-*- 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 "/etc/rc.d/rc.local"
#elif defined(TARGET_SUSE)
#define SCRIPT_PATH "/etc/init.d/boot.local"
#endif
const char *arg_dest = "/tmp";
static int add_symlink(const char *service) {
char *from = NULL, *to = NULL;
int r;
assert(service);
asprintf(&from, SYSTEM_DATA_UNIT_PATH "/%s", service);
asprintf(&to, "%s/multi-user.target.wants/%s", arg_dest, service);
if (!from || !to) {
log_error("Out of memory");
r = -ENOMEM;
goto finish;
}
mkdir_parents(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 > 2) {
log_error("This program takes one or no arguments.");
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
log_open();
if (argc > 1)
arg_dest = argv[1];
if (file_is_executable(SCRIPT_PATH)) {
log_debug("Automatically adding rc-local.service.");
if (add_symlink("rc-local.service") < 0)
r = EXIT_FAILURE;
}
return r;
}
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