--- mqtt/src/mqttd.c	2011/11/30 00:12:30	1.1.1.1.2.5
+++ mqtt/src/mqttd.c	2011/11/30 01:06:30	1.1.1.1.2.6
@@ -1,6 +1,7 @@
 #include "global.h"
 #include "rtlm.h"
 #include "utils.h"
+#include "daemon.h"
 
 
 sl_config cfg;
@@ -14,6 +15,7 @@ Usage(void)
 	printf(	" -= MQTT Broker =- MQTT Service from ELWIX\n"
 		"=== %s@%s === Compiled: %s ===\n\n"
 		"\t-c <config>\tService config\n"
+		"\t-b\t\tBatch mode\n"
 		"\t-v\t\tVerbose (more -vvv, more verbose)\n"
 		"\t-h\t\tHelp! This screen\n\n", 
 		compiledby, compilehost, compiled);
@@ -23,18 +25,22 @@ Usage(void)
 int
 main(int argc, char **argv)
 {
-	char ch, szCfgName[MAXPATHLEN];
+	char ch, batch = 0, szStr[STRSIZ], szCfgName[MAXPATHLEN];
 	register int i;
 	sqlite3 *acc = NULL, *pub = NULL;
 	FILE *logg = NULL;
-	int sock, ret = 0;
+	int sock = -1, ret = 0;
+	struct passwd *pass;
 
 	strlcpy(szCfgName, DEFAULT_CONFIG, sizeof szCfgName);
-	while ((ch = getopt(argc, argv, "hvc:")) != -1)
+	while ((ch = getopt(argc, argv, "hvbc:")) != -1)
 		switch (ch) {
 			case 'c':
 				strlcpy(szCfgName, optarg, sizeof szCfgName);
 				break;
+			case 'b':
+				batch++;
+				break;
 			case 'v':
 				Verbose++;
 				break;
@@ -50,12 +56,14 @@ main(int argc, char **argv)
 		printf("Error:: can't load #%d - %s\n", cfg_GetErrno(), cfg_GetError());
 		return 1;
 	}
+	openlog("mqttd", LOG_PID | LOG_CONS, LOG_DAEMON);
 	for (i = 0; i < 3; i++)
 		if (!mqttLoadRTLM(&cfg, i)) {
 			printf("Error:: Can't load RTL module\n");
 			while (i--)
 				mqttUnloadRTLM(i);
 			UnloadConfig(&cfg);
+			closelog();
 			return 2;
 		}
 	acc = call.OpenACC(&cfg);
@@ -80,20 +88,58 @@ main(int argc, char **argv)
 		goto end;
 	}
 
-	VERB(2) printf("Service is ready for start engine ...\n");
+	VERB(2) syslog(LOG_DEBUG, "Service is ready for start engine ...");
 
 	if ((sock = srv_Socket(&cfg)) == -1) {
 		ret = 4;
 		goto end;
 	}
 
-	srv_Close(sock);
+	if (!batch)
+		switch (fork()) {
+			case -1:
+				printf("Error:: in fork() #%d - %s\n", errno, strerror(errno));
+				ret = 5;
+				goto end;
+			case 0:
+				setsid();
+				cfg_LoadAttribute(&cfg, CFG("mqttd"), CFG("user"), CFG(szStr), 
+						sizeof szStr, MQTT_USER);
+				pass = getpwnam(szStr);
+				if (pass) {
+					setgid(pass->pw_gid);
+					setuid(pass->pw_uid);
+					VERB(1) syslog(LOG_WARNING, "Try to change group #%d and user #%d", 
+							pass->pw_gid, pass->pw_uid);
+				}
+				ret = open("/dev/null", O_RDWR);
+				if (ret != -1) {
+					dup2(ret, STDIN_FILENO);
+					dup2(ret, STDOUT_FILENO);
+					dup2(ret, STDERR_FILENO);
+					close(ret);
+				}
+				VERB(2) syslog(LOG_DEBUG, "Welcome MQTT service into shadow land!");
+				break;
+			default:
+				VERB(2) syslog(LOG_DEBUG, "MQTT service go to shadow land ...");
+				ret = 0;
+				goto end;
+		}
+	else
+		VERB(1) printf("Start service in batch mode ...\n");
+
+	Run();
+
 end:
+	if (sock > STDERR_FILENO)
+		srv_Close(sock);
 	call.CloseLOG(logg);
 	call.ClosePUB(pub);
 	call.CloseACC(acc);
 	for (i = 0; i < 3; i++)
 		mqttUnloadRTLM(i);
+	closelog();
 	UnloadConfig(&cfg);
 	return ret;
 }