| /* |
| * |
| * BlueZ - Bluetooth protocol stack for Linux |
| * |
| * Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program 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 General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include <stdio.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <sys/stat.h> |
| #include <syslog.h> |
| |
| #include <glib.h> |
| |
| #ifdef HAVE_CAPNG |
| #include <cap-ng.h> |
| #endif |
| |
| static GMainLoop *event_loop; |
| |
| static void sig_term(int sig) |
| { |
| g_main_loop_quit(event_loop); |
| } |
| |
| static gboolean option_detach = TRUE; |
| static gboolean option_debug = FALSE; |
| |
| static GOptionEntry options[] = { |
| { "nodaemon", 'n', G_OPTION_FLAG_REVERSE, |
| G_OPTION_ARG_NONE, &option_detach, |
| "Don't run as daemon in background" }, |
| { "debug", 'd', 0, G_OPTION_ARG_NONE, &option_debug, |
| "Enable debug information output" }, |
| { NULL }, |
| }; |
| |
| static void debug(const char *format, ...) |
| { |
| va_list ap; |
| |
| if (!option_debug) |
| return; |
| |
| va_start(ap, format); |
| |
| vsyslog(LOG_DEBUG, format, ap); |
| |
| va_end(ap); |
| } |
| |
| static void sig_debug(int sig) |
| { |
| option_debug = !option_debug; |
| } |
| |
| int main(int argc, char *argv[]) |
| { |
| GOptionContext *context; |
| GError *err = NULL; |
| struct sigaction sa; |
| |
| #ifdef HAVE_CAPNG |
| /* Drop capabilities */ |
| capng_clear(CAPNG_SELECT_BOTH); |
| capng_updatev(CAPNG_ADD, CAPNG_EFFECTIVE | CAPNG_PERMITTED, |
| CAP_NET_BIND_SERVICE, CAP_NET_ADMIN, |
| CAP_NET_RAW, CAP_IPC_LOCK, -1); |
| capng_apply(CAPNG_SELECT_BOTH); |
| #endif |
| |
| context = g_option_context_new(NULL); |
| g_option_context_add_main_entries(context, options, NULL); |
| |
| if (g_option_context_parse(context, &argc, &argv, &err) == FALSE) { |
| if (err != NULL) { |
| g_printerr("%s\n", err->message); |
| g_error_free(err); |
| } else |
| g_printerr("An unknown error occurred\n"); |
| exit(1); |
| } |
| |
| g_option_context_free(context); |
| |
| if (option_detach == TRUE) { |
| if (daemon(0, 0)) { |
| perror("Can't start daemon"); |
| exit(1); |
| } |
| } |
| |
| umask(0077); |
| |
| openlog("hcitrace", LOG_PID | LOG_NDELAY | LOG_PERROR, LOG_DAEMON); |
| |
| syslog(LOG_INFO, "HCI trace deamon %s", VERSION); |
| |
| memset(&sa, 0, sizeof(sa)); |
| sa.sa_flags = SA_NOCLDSTOP; |
| sa.sa_handler = sig_term; |
| sigaction(SIGTERM, &sa, NULL); |
| sigaction(SIGINT, &sa, NULL); |
| |
| sa.sa_handler = sig_debug; |
| sigaction(SIGUSR2, &sa, NULL); |
| |
| sa.sa_handler = SIG_IGN; |
| sigaction(SIGPIPE, &sa, NULL); |
| |
| if (option_debug == TRUE) { |
| syslog(LOG_INFO, "Enabling debug information"); |
| } |
| |
| event_loop = g_main_loop_new(NULL, FALSE); |
| |
| debug("Entering main loop"); |
| |
| g_main_loop_run(event_loop); |
| |
| g_main_loop_unref(event_loop); |
| |
| syslog(LOG_INFO, "Exit"); |
| |
| closelog(); |
| |
| return 0; |
| } |