Added dlt-daemon internal logging configuration into dlt.conf file.

Internal logging to file now also possible.

6 files changed, 179 insertions, 120 deletions

diff --git a/src/daemon/dlt-daemon.c b/src/daemon/dlt-daemon.c
index 4ab628f..fb8b2e6 100755
--- a/src/daemon/dlt-daemon.c
+++ b/src/daemon/dlt-daemon.c
@@ -135,7 +135,6 @@ void usage()
     printf("DLT logging daemon\n");
     printf("Options:\n");
     printf("  -d            Daemonize\n");
-    printf("  -v            Verbose mode\n");
     printf("  -h            Usage\n");
     printf("  -c filename   DLT daemon configuration file (Default: /etc/dlt.conf)\n");
 } /* usage() */
@@ -158,15 +157,10 @@ int option_handling(DltDaemonLocal *daemon_local,int argc, char* argv[])
 
     opterr = 0;
 
-    while ((c = getopt (argc, argv, "hvdc:")) != -1)
+    while ((c = getopt (argc, argv, "hdc:")) != -1)
     {
         switch (c)
         {
-        case 'v':
-        {
-            daemon_local->flags.vflag = 1;
-            break;
-        }
         case 'd':
         {
             daemon_local->flags.dflag = 1;
@@ -230,6 +224,9 @@ int option_file_parser(DltDaemonLocal *daemon_local)
 	daemon_local->flags.offlineTraceDirectory[0] = 0;
 	daemon_local->flags.offlineTraceFileSize = 1000000;
 	daemon_local->flags.offlineTraceMaxSize = 0;
+	daemon_local->flags.loggingMode = 0;
+	daemon_local->flags.loggingLevel = 6;
+	strncpy(daemon_local->flags.loggingFilename,"/tmp/dlt.log",sizeof(daemon_local->flags.loggingFilename));
 
 	/* open configuration file */
 	if(daemon_local->flags.cvalue[0])
@@ -246,7 +243,6 @@ int option_file_parser(DltDaemonLocal *daemon_local)
 			/* fetch line from configuration file */
 			if ( fgets (line , 1024 , pFile) != NULL )
 			{
-				  //printf("Line: %s\n",line);
 				  pch = strtok (line," =\r\n");
 				  token[0]=0;
 				  value[0]=0;
@@ -275,100 +271,108 @@ int option_file_parser(DltDaemonLocal *daemon_local)
 						if(strcmp(token,"Verbose")==0)
 						{
 							daemon_local->flags.vflag = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"PrintASCII")==0)
 						{
 							daemon_local->flags.aflag = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"PrintHex")==0)
 						{
 							daemon_local->flags.xflag = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"PrintHeadersOnly")==0)
 						{
 							daemon_local->flags.sflag = atoi(value);
-							printf("Option: %s=%s\n",token,value);
-						}
-						else if(strcmp(token,"Daemonize")==0)
-						{
-							daemon_local->flags.dflag = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"SendSerialHeader")==0)
 						{
 							daemon_local->flags.lflag = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"SendContextRegistration")==0)
 						{
 							daemon_local->flags.rflag = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"SendMessageTime")==0)
 						{
 							daemon_local->flags.sendMessageTime = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"RS232SyncSerialHeader")==0)
 						{
 							daemon_local->flags.mflag = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"TCPSyncSerialHeader")==0)
 						{
 							daemon_local->flags.nflag = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"RS232DeviceName")==0)
 						{
 							strncpy(daemon_local->flags.yvalue,value,sizeof(daemon_local->flags.yvalue));
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"RS232Baudrate")==0)
 						{
 							strncpy(daemon_local->flags.bvalue,value,sizeof(daemon_local->flags.bvalue));
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"ECUId")==0)
 						{
 							strncpy(daemon_local->flags.evalue,value,sizeof(daemon_local->flags.evalue));
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"PersistanceStoragePath")==0)
 						{
 							strncpy(daemon_local->flags.ivalue,value,sizeof(daemon_local->flags.ivalue));
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
+						}
+						else if(strcmp(token,"LoggingMode")==0)
+						{
+							daemon_local->flags.loggingMode = atoi(value);
+							//printf("Option: %s=%s\n",token,value);
+						}
+						else if(strcmp(token,"LoggingLevel")==0)
+						{
+							daemon_local->flags.loggingLevel = atoi(value);
+							//printf("Option: %s=%s\n",token,value);
+						}
+						else if(strcmp(token,"LoggingFilename")==0)
+						{
+							strncpy(daemon_local->flags.loggingFilename,value,sizeof(daemon_local->flags.loggingFilename));
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"SharedMemorySize")==0)
 						{
 							daemon_local->flags.sharedMemorySize = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"OfflineTraceDirectory")==0)
 						{
 							strncpy(daemon_local->flags.offlineTraceDirectory,value,sizeof(daemon_local->flags.offlineTraceDirectory));
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"OfflineTraceFileSize")==0)
 						{
 							daemon_local->flags.offlineTraceFileSize = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else if(strcmp(token,"OfflineTraceMaxSize")==0)
 						{
 							daemon_local->flags.offlineTraceMaxSize = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							//printf("Option: %s=%s\n",token,value);
 						}
 						else
 						{
 							fprintf(stderr, "Unknown option: %s=%s\n",token,value);
 						}
 					}
-					//printf ("Token: %s\n",pch);
-
 			}
 			else
 			{
@@ -414,8 +418,10 @@ int main(int argc, char* argv[])
 		return -1;
 	}
 	
-    /* Initialize logging facility */
-    dlt_log_init(daemon_local.flags.dflag);
+    /* Initialize internal logging facility */
+    dlt_log_set_filename(daemon_local.flags.loggingFilename);
+    dlt_log_set_level(daemon_local.flags.loggingLevel);
+    dlt_log_init(daemon_local.flags.loggingMode);
 
     /* Print version information */
     dlt_get_version(version);
@@ -545,22 +551,6 @@ int dlt_daemon_local_init_p1(DltDaemon *daemon, DltDaemonLocal *daemon_local, in
     signal(SIGQUIT, dlt_daemon_signal_handler);
     signal(SIGINT,  dlt_daemon_signal_handler);
 
-#if 0
-    /* open DLT output file */
-    daemon_local->ohandle=-1;
-    if (daemon_local->flags.ovalue[0])
-    {
-        daemon_local->ohandle = open(daemon_local->flags.ovalue,O_WRONLY|O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); /* mode: wb */
-        if (daemon_local->ohandle == -1)
-        {
-        	/* Return value ignored, dlt daemon will exit */
-            dlt_file_free(&(daemon_local->file),daemon_local->flags.vflag);
-            sprintf(str,"Output file %s cannot be opened!\n",daemon_local->flags.ovalue);
-            dlt_log(LOG_ERR, str);
-            return -1;
-        } /* if */
-    } /* if */
-#endif
 	/* init offline trace */
 	if(((daemon->mode == DLT_USER_MODE_INTERNAL) || (daemon->mode == DLT_USER_MODE_BOTH)) && daemon_local->flags.offlineTraceDirectory[0]) 
 	{
diff --git a/src/daemon/dlt-daemon.h b/src/daemon/dlt-daemon.h
index 9d71a6e..bc3ba39 100755
--- a/src/daemon/dlt-daemon.h
+++ b/src/daemon/dlt-daemon.h
@@ -110,6 +110,9 @@ typedef struct
     char offlineTraceDirectory[256]; /**< (String: Directory) Store DLT messages to local directory (Default: /etc/dlt.conf) */

     int  offlineTraceFileSize;	/**< (int) Maximum size in bytes of one trace file (Default: 1000000) */

     int  offlineTraceMaxSize;	/**< (int) Maximum size of all trace files (Default: 4000000) */

+    int  loggingMode;	/**< (int) The logging console for internal logging of dlt-daemon (Default: 0) */

+    int  loggingLevel;	/**< (int) The logging level for internal logging of dlt-daemon (Default: 6) */

+    char loggingFilename[256]; /**< (String: Filename) The logging filename if internal logging mode is log to file (Default: /tmp/log) */

 } DltDaemonFlags;

 

 /**

diff --git a/src/daemon/dlt.conf b/src/daemon/dlt.conf
index 629794d..a410d19 100644
--- a/src/daemon/dlt.conf
+++ b/src/daemon/dlt.conf
@@ -30,6 +30,17 @@ SharedMemorySize = 40000
 # Directory where to store the persistant configuration (Default: /tmp)
 # PersistanceStoragePath = /tmp
 
+# The logging console for internal logging of dlt-daemon (Default: 0)
+# 0 = log to stdout, 1 = log to syslog, 2 = log to file (see LoggingFilename)
+LoggingMode = 2
+
+# The internal log level, up to which logs are written (Default: 6)
+# LOG_EMERG = 0, LOG_ALERT = 1, LOG_CRIT = 2, LOG_ERR = 3, LOG_WARNING = 4, LOG_NOTICE = 5, LOG_INFO = 6, LOG_DEBUG = 7
+LoggingLevel = 6
+
+# The logging filename if internal logging mode is log to file (Default: /tmp/log)
+LoggingFilename = /tmp/dlt.log
+
 ########################################################################
 # Offline Trace memory                                                 #
 ########################################################################
diff --git a/src/daemon/dlt_daemon_common.c b/src/daemon/dlt_daemon_common.c
index dbb1e7a..4877825 100755
--- a/src/daemon/dlt_daemon_common.c
+++ b/src/daemon/dlt_daemon_common.c
@@ -907,11 +907,13 @@ int dlt_daemon_configuration_load(DltDaemon *daemon,const char *filename, int ve
 						if(strcmp(token,"LoggingMode")==0)
 						{
 							daemon->mode = atoi(value);
-							printf("Option: %s=%s\n",token,value);
+							sprintf(str,"Runtime Option: %s=%d\n",token,daemon->mode);
+							dlt_log(LOG_INFO, str);
 						}
 						else
 						{
-							fprintf(stderr, "Unknown option: %s=%s\n",token,value);
+							sprintf(str,"Unknown option: %s=%s\n",token,value);
+							dlt_log(LOG_ERR, str);
 						}
 					}
 			}
@@ -924,7 +926,8 @@ int dlt_daemon_configuration_load(DltDaemon *daemon,const char *filename, int ve
 	}
 	else
 	{
-		fprintf(stderr, "Cannot open configuration file: %s\n",filename);
+        sprintf(str,"Cannot open configuration file: %s\n",filename);
+        dlt_log(LOG_WARNING, str);
 	}	
 	
     return 0;
diff --git a/src/shared/dlt_common.c b/src/shared/dlt_common.c
index 4ac7dbe..bf363b7 100755
--- a/src/shared/dlt_common.c
+++ b/src/shared/dlt_common.c
@@ -114,7 +114,11 @@ static char str[DLT_COMMON_BUFFER_LENGTH];
 const char dltSerialHeader[DLT_ID_SIZE] = { 'D','L','S',1 };
 char dltSerialHeaderChar[DLT_ID_SIZE] = { 'D','L','S',1 };
 
-static int log_as_daemon = 0;
+/* internal logging parameters */
+static int logging_mode = 0;
+static int logging_level = 6;
+static char logging_filename[256] = "";
+static FILE *logging_handle = 0;
 
 char *message_type[] = {"log","app_trace","nw_trace","control","","","",""};
 char *log_info[] = {"","fatal","error","warn","info","debug","verbose","","","","","","","","",""};
@@ -1952,14 +1956,37 @@ int dlt_file_free(DltFile *file,int verbose)
     return dlt_message_free(&(file->msg),verbose);
 }
 
+void dlt_log_set_level(int level)
+{
+	logging_level = level;
+}
+
+void dlt_log_set_filename(const char *filename)
+{
+	strncpy(logging_filename,filename,sizeof(logging_filename));
+}
+
 void dlt_log_init(int mode)
 {
-    log_as_daemon = mode;
+    logging_mode = mode;
+    
+	if(logging_mode == 2)
+	{
+		/* internal logging to file */
+		logging_handle = fopen(logging_filename,"w");
+		if (logging_handle == 0)
+		{
+			printf("Internal log file %s cannot be opened!\n",logging_filename);
+			return;
+		}
+	}
 }
 
 void dlt_log_free(void)
 {
-    /* Nothing to be done yet */
+	if(logging_mode == 2) {
+		fclose(logging_handle);
+	}
 }
 
 int dlt_log(int prio, char *s)
@@ -1970,68 +1997,80 @@ int dlt_log(int prio, char *s)
     {
         return -1;
     }
+	if(logging_level<prio)
+	{
+		return 0;
+	}
 
     switch (prio)
     {
         case	LOG_EMERG:
         {
-            strcpy(logfmtstring,"DLT| EMERGENCY: %s");
+            strncpy(logfmtstring,"DLT| EMERGENCY: %s",sizeof(logfmtstring));
             break;
         }
         case	LOG_ALERT:
         {
-            strcpy(logfmtstring,"DLT| ALERT:     %s");
+            strncpy(logfmtstring,"DLT| ALERT:     %s",sizeof(logfmtstring));
             break;
         }
         case	LOG_CRIT:
         {
-            strcpy(logfmtstring,"DLT| CRITICAL:  %s");
+            strncpy(logfmtstring,"DLT| CRITICAL:  %s",sizeof(logfmtstring));
             break;
         }
         case	LOG_ERR:
         {
-            strcpy(logfmtstring,"DLT| ERROR:     %s");
+            strncpy(logfmtstring,"DLT| ERROR:     %s",sizeof(logfmtstring));
             break;
         }
         case	LOG_WARNING:
         {
-            strcpy(logfmtstring,"DLT| WARNING:   %s");
+            strncpy(logfmtstring,"DLT| WARNING:   %s",sizeof(logfmtstring));
             break;
         }
         case	LOG_NOTICE:
         {
-            strcpy(logfmtstring,"DLT| NOTICE:    %s");
+            strncpy(logfmtstring,"DLT| NOTICE:    %s",sizeof(logfmtstring));
             break;
         }
         case	LOG_INFO:
         {
-            strcpy(logfmtstring,"DLT| INFO:      %s");
+            strncpy(logfmtstring,"DLT| INFO:      %s",sizeof(logfmtstring));
             break;
         }
         case	LOG_DEBUG:
         {
-            strcpy(logfmtstring,"DLT| DEBUG:     %s");
+            strncpy(logfmtstring,"DLT| DEBUG:     %s",sizeof(logfmtstring));
             break;
         }
         default:
         {
-            strcpy(logfmtstring,"DLT|            %s");
+            strncpy(logfmtstring,"DLT|            %s",sizeof(logfmtstring));
             break;
         }
     }
 
+	switch(logging_mode)
+	{
+		case 0:
+			/* log to stdout */
+			printf(logfmtstring, s);
+			break;
+		case 1:
+			/* log to syslog */
 #if !defined (__WIN32__) && !defined(_MSC_VER)
-    if (log_as_daemon)
-    {
-        openlog("DLT",LOG_PID,LOG_DAEMON);
-        syslog(prio, logfmtstring, s);
-        closelog();
-    }
-    else
+			openlog("DLT",LOG_PID,LOG_DAEMON);
+			syslog(prio, logfmtstring, s);
+			closelog();
 #endif
-    {
-        printf(logfmtstring, s);
-    }
+			break;
+		case 2:
+			/* log to file */
+			if(logging_handle)
+				fprintf(logging_handle,logfmtstring, s);
+			break;
+	}
 
     return 0;
 }
diff --git a/src/shared/dlt_shm.c b/src/shared/dlt_shm.c
index 2eecafe..d50fb78 100644
--- a/src/shared/dlt_shm.c
+++ b/src/shared/dlt_shm.c
@@ -73,6 +73,11 @@
 #include <stdio.h>
 #include <string.h>
 
+#if !defined(_MSC_VER)
+#include <unistd.h>
+#include <syslog.h>
+#endif
+
 #include <dlt_shm.h>
 #include <dlt_common.h>
 
@@ -98,12 +103,13 @@ void dlt_shm_pv(int id,int operation)
 	semaphor.sem_flg = SEM_UNDO;
 	
 	if(semop(id, &semaphor,1) == -1) {
-		perror("SHM: semop");
+		dlt_log(LOG_ERR,"SHM: semop");
 	}
 }
 
 int dlt_shm_init_server(DltShm *buf,int key,int size) {
 	struct shmid_ds shm_buf;
+	char str[256];
 
 	// Init parameters
 	buf->shm = NULL;
@@ -114,32 +120,32 @@ int dlt_shm_init_server(DltShm *buf,int key,int size) {
 
     // Create the segment.
     if ((buf->shmid = shmget(key, size, IPC_CREAT | 0666)) < 0) {
-        perror("SHM: shmget");
+        dlt_log(LOG_ERR,"SHM: shmget");
         return -1; /* ERROR */
     }
 
 	// get the size of shm
 	if (shmctl(buf->shmid,  IPC_STAT, &shm_buf))
 	{
-		perror("SHM: shmctl");
+		dlt_log(LOG_ERR,"SHM: shmctl");
         return -1; /* ERROR */
 	}	
 
     // Now we attach the segment to our data space.
     if ((buf->shm = shmat(buf->shmid, NULL, 0)) == (char *) -1) {
-        perror("SHM: shmat");
+        dlt_log(LOG_ERR,"SHM: shmat");
         return -1; /* ERROR */
     }
 	
 	// Init semaphore
 	if( (buf->semid = semget(DLT_SHM_SEM,1,S_IRWXU|S_IRWXG|S_IRWXO|IPC_CREAT|IPC_EXCL)) == -1 ) {
 		if( (buf->semid = semget(DLT_SHM_SEM,1,S_IRWXU|S_IRWXG|S_IRWXO|IPC_EXCL)) == -1 ) {
-			perror("SHM: semget");
+			dlt_log(LOG_ERR,"SHM: semget");
 			return -1; /* ERROR */
 		}
 	}
 	if( semctl(buf->semid,0,SETVAL,(int)1) == -1 ) {
-        perror("SHM: semctl");
+        dlt_log(LOG_ERR,"SHM: semctl");
         return -1; /* ERROR */
 	}
 	
@@ -153,9 +159,8 @@ int dlt_shm_init_server(DltShm *buf,int key,int size) {
 	// clear memory
 	memset(buf->mem,0,buf->size);
     
-	//dlt_shm_status(buf);
-    //dlt_shm_info(buf);
-    printf("SHM: Size %d\n",buf->size);    
+	snprintf(str,sizeof(str),"SHM: Size %d\n",buf->size);
+	dlt_log(LOG_INFO, str);
 
 	return 0; /* OK */
 }
@@ -172,26 +177,26 @@ int dlt_shm_init_client(DltShm *buf,int key) {
 
     // Create the segment.
     if ((buf->shmid = shmget(key, 0, 0666)) < 0) {
-        perror("SHM: shmget");
+        dlt_log(LOG_ERR,"SHM: shmget");
         return -1; /* ERROR */
     }
 
 	// get the size of shm
 	if (shmctl(buf->shmid,  IPC_STAT, &shm_buf))
 	{
-		perror("SHM: shmctl");
+		dlt_log(LOG_ERR,"SHM: shmctl");
         return -1; /* ERROR */
 	}	
 
     // Now we attach the segment to our data space.
     if ((buf->shm = shmat(buf->shmid, NULL, 0)) == (char *) -1) {
-        perror("shmat");
+        dlt_log(LOG_ERR,"shmat");
         return -1; /* ERROR */
     }
         	
 	// Init semaphore
 	if( (buf->semid = semget(DLT_SHM_SEM,0,0)) == -1 ) {
-        perror("SHM: semget");
+        dlt_log(LOG_ERR,"SHM: semget");
         return -1; /* ERROR */
 	}
 	DLT_SHM_SEM_FREE(buf->semid);
@@ -208,26 +213,34 @@ int dlt_shm_init_client(DltShm *buf,int key) {
 
 void dlt_shm_info(DltShm *buf)
 {
+	char str[256];
 
-    printf("SHM: SHM id: %d\n",buf->shmid);    
-    printf("SHM: Available size: %d\n",buf->size);    
-    printf("SHM: SHM full start address: %lX\n",(unsigned long)buf->shm);        
-    printf("SHM: SHM start address: %lX\n",(unsigned long)buf->mem);        
+	snprintf(str,sizeof(str),"SHM: SHM id: %d\n",buf->shmid);
+	dlt_log(LOG_INFO, str);
+	snprintf(str,sizeof(str),"SHM: Available size: %d\n",buf->size);
+	dlt_log(LOG_INFO, str);
+	snprintf(str,sizeof(str),"SHM: SHM full start address: %lX\n",(unsigned long)buf->shm);
+	dlt_log(LOG_INFO, str);
+	snprintf(str,sizeof(str),"SHM: SHM start address: %lX\n",(unsigned long)buf->mem);
+	dlt_log(LOG_INFO, str);
 
 }
 
 void dlt_shm_status(DltShm *buf)
 {
 	int write, read, count;
+	char str[256];
 
 	write = ((int*)(buf->shm))[0];
 	read = ((int*)(buf->shm))[1];
 	count = ((int*)(buf->shm))[2];
 
-    printf("SHM: Write: %d\n",write);    
-    printf("SHM: Read: %d\n",read);    
-    printf("SHM: Count: %d\n",count);    
-
+	snprintf(str,sizeof(str),"SHM: Write: %d\n",write);
+	dlt_log(LOG_INFO, str);
+	snprintf(str,sizeof(str),"SHM: Read: %d\n",read);
+	dlt_log(LOG_INFO, str);
+	snprintf(str,sizeof(str),"SHM: Count: %d\n",count);
+	dlt_log(LOG_INFO, str);
 }
 
 int dlt_shm_get_total_size(DltShm *buf)
@@ -267,7 +280,7 @@ int dlt_shm_push(DltShm *buf,const unsigned char *data1,unsigned int size1,const
 	
 	if(!buf->mem) {
 		// shm not initialised
-		//printf("SHM: SHM not initialised\n");
+		//dlt_log(LOG_ERR,"SHM: SHM not initialised\n");
 		return -1; /* ERROR */
 	}
 
@@ -283,13 +296,13 @@ int dlt_shm_push(DltShm *buf,const unsigned char *data1,unsigned int size1,const
 	if(read==write && count) {
 		// shm buffer is full
 		DLT_SHM_SEM_FREE(buf->semid);
-		//printf("SHM is totally full\n");
+		//dlt_log(LOG_ERR,"SHM is totally full\n");
 		return -1; // ERROR
 	}
 	else if(write >= buf->size) {
 		if((size1+size2+size3+sizeof(head)+sizeof(unsigned char)+sizeof(int)) > read) {
 			DLT_SHM_SEM_FREE(buf->semid);
-			//printf("SHM is full at start\n");
+			//dlt_log(LOG_ERR,"SHM is full at start\n");
 			return -1; // ERROR
 		}	
 		write = 0;
@@ -297,7 +310,7 @@ int dlt_shm_push(DltShm *buf,const unsigned char *data1,unsigned int size1,const
 	else if(read > write) {
 		if((write + size1+size2+size3+sizeof(head)+sizeof(unsigned char)+sizeof(int)) > read) {
 			DLT_SHM_SEM_FREE(buf->semid);
-			//printf("SHM is full at end\n");
+			//dlt_log(LOG_ERR,"SHM is full at end\n");
 			return -1; // ERROR
 		}	
 	}
@@ -308,7 +321,7 @@ int dlt_shm_push(DltShm *buf,const unsigned char *data1,unsigned int size1,const
 			// try write at beginning
 			if((size1+size2+size3+sizeof(head)+sizeof(unsigned char)+sizeof(int)) > read) {
 				DLT_SHM_SEM_FREE(buf->semid);
-				//printf("SHM is full at start\n");
+				//dlt_log(LOG_ERR,"SHM is full at start\n");
 				return -1; // ERROR
 			}	
 			// write zero status and size at end if possible
@@ -359,7 +372,7 @@ int dlt_shm_pull(DltShm *buf,unsigned char *data, int max_size)
 	
 	if(!buf->mem) {
 		// shm not initialised
-		printf("SHM: SHM not initialised\n");
+		//dlt_log(LOG_ERR,"SHM: SHM not initialised\n");
 		return -1; /* ERROR */
 	}
 
@@ -398,19 +411,19 @@ int dlt_shm_pull(DltShm *buf,unsigned char *data, int max_size)
 	
 	// check status
 	if(status != 2 ) {
-		//printf("Buffer is not fully written\n");
+		//dlt_log(LOG_ERR,"Buffer is not fully written\n");
 		return -1; // ERROR		
 	}
 	
 	// plausibility check of buffer size
 	if( (read+size) > buf->size) {
-		printf("SHM: Buffers size bigger than shm buffer\n");
+		dlt_log(LOG_ERR,"SHM: Buffers size bigger than shm buffer\n");
 		return -1; // ERROR		
 	}
 	
 	// check max read size
 	if(size > max_size) {
-		printf("SHM: Buffer is bigger than max size\n");
+		dlt_log(LOG_ERR,"SHM: Buffer is bigger than max size\n");
 		return -1; // ERROR			
 	}
 	
@@ -442,7 +455,7 @@ int dlt_shm_copy(DltShm *buf,unsigned char *data, int max_size)
 	
 	if(!buf->mem) {
 		// shm not initialised
-		printf("SHM: SHM not initialised\n");
+		dlt_log(LOG_ERR,"SHM: SHM not initialised\n");
 		return -1; /* ERROR */
 	}
 	DLT_SHM_SEM_FREE(buf->semid);
@@ -482,19 +495,19 @@ int dlt_shm_copy(DltShm *buf,unsigned char *data, int max_size)
 	
 	// check status
 	if(status != 2 ) {
-		//printf("Buffer is not fully written\n");
+		//dlt_log(LOG_ERR,"Buffer is not fully written\n");
 		return -1; // ERROR		
 	}
 	
 	// plausibility check of buffer size
 	if( (read+size) > buf->size) {
-		printf("SHM: Buffers size bigger than shm buffer\n");
+		dlt_log(LOG_ERR,"SHM: Buffers size bigger than shm buffer\n");
 		return -1; // ERROR		
 	}
 	
 	// check max read size
 	if((size-sizeof(head)) > max_size) {
-		printf("SHM: Buffer is bigger than max size\n");
+		dlt_log(LOG_ERR,"SHM: Buffer is bigger than max size\n");
 		return -1; // ERROR			
 	}
 	
@@ -511,7 +524,7 @@ int dlt_shm_remove(DltShm *buf)
 	
 	if(!buf->mem) {
 		// shm not initialised
-		printf("SHM: SHM not initialised\n");
+		dlt_log(LOG_ERR,"SHM: SHM not initialised\n");
 		return -1; /* ERROR */
 	}
 
@@ -551,13 +564,13 @@ int dlt_shm_remove(DltShm *buf)
 	
 	// check status
 	if(status != 2 ) {
-		//printf("Buffer is not fully written\n");
+		//dlt_log(LOG_ERR,"Buffer is not fully written\n");
 		return -1; // ERROR		
 	}
 	
 	// plausibility check of buffer size
 	if( (read+size) > buf->size) {
-		printf("SHM: Buffers size bigger than shm buffer\n");
+		dlt_log(LOG_ERR,"SHM: Buffers size bigger than shm buffer\n");
 		return -1; // ERROR		
 	}
 		
@@ -570,7 +583,7 @@ int dlt_shm_remove(DltShm *buf)
 
 int dlt_shm_reset(DltShm *buf) {
 	
-	printf("SHM: Pointer corrupted; reset triggered.\n");
+	dlt_log(LOG_EMERG,"SHM: Pointer corrupted; reset triggered.\n");
 
 	/* reset pointers and counters */	
 	DLT_SHM_SEM_GET(buf->semid);
@@ -589,7 +602,7 @@ int dlt_shm_recover(DltShm *buf) {
 	// initialise head
 	head[3] = 0x01;
 
-	printf("SHM: Head not found; try to recover.\n");
+	dlt_log(LOG_EMERG,"SHM: Head not found; try to recover.\n");
 
 	/* try to find next valid message */
 	DLT_SHM_SEM_GET(buf->semid);
@@ -643,22 +656,22 @@ int dlt_shm_recover(DltShm *buf) {
 int dlt_shm_free_server(DltShm *buf) {
 
 	if(!buf->shm) {
-        printf("SHM: Shared memory segment not attached\n");
+        dlt_log(LOG_ERR,"SHM: Shared memory segment not attached\n");
         return -1; /* ERROR */
     }
 		
 	if(shmdt(buf->shm)) {
-        perror("SHM: shmdt");
+        dlt_log(LOG_ERR,"SHM: shmdt");
         return -1; /* ERROR */
     }
 
 	if(shmctl(buf->shmid,IPC_RMID,NULL) == -1) {
-        perror("SHM: shmdt");
+        dlt_log(LOG_ERR,"SHM: shmdt");
         return -1; /* ERROR */
 	}
 
 	if(semctl(buf->semid,0,IPC_RMID,(int)0) == -1) {
-        perror("SHM: shmdt");
+        dlt_log(LOG_ERR,"SHM: shmdt");
         return -1; /* ERROR */
 	}
 
@@ -675,12 +688,12 @@ int dlt_shm_free_server(DltShm *buf) {
 int dlt_shm_free_client(DltShm *buf) {
 
 	if(!buf->shm) {
-        printf("SHM: Shared memory segment not attached\n");
+        dlt_log(LOG_ERR,"SHM: Shared memory segment not attached\n");
         return -1; /* ERROR */
     }
 		
 	if(shmdt(buf->shm)) {
-        perror("SHM: shmdt");
+        dlt_log(LOG_ERR,"SHM: shmdt");
         return -1; /* ERROR */
     }