/*** 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; }