1 files changed, 152 insertions, 0 deletions
diff --git a/tracer/main.c b/tracer/main.c
new file mode 100644
index 0000000..0806ffe
--- /dev/null
+++ b/tracer/main.c
@@ -0,0 +1,152 @@
+/*
+ *
+ *  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;
+}