X-Git-Url: http://git.eversberg.eu/gitweb.cgi?p=lcr.git;a=blobdiff_plain;f=gsm.cpp;h=7507f3326bf4e396c00cc34a647b88d72dd101fa;hp=e4d5792a0fb98820525b0f6f0f67e95194a247c8;hb=f522af5539858d9a97f40e87a3ee1ed31e759244;hpb=a12d7eee22a72f4c999535892763dde15212e89e

diff --git a/gsm.cpp b/gsm.cpp
index e4d5792..7507f33 100644
--- a/gsm.cpp
+++ b/gsm.cpp
@@ -266,20 +266,23 @@ void gsm_trace_header(struct mISDNport *mISDNport, class PmISDN *port, unsigned
 	SCPY(msgtext, get_mncc_name(msg_type));
 
 	/* add direction */
-	switch(port->p_type) {
-	case PORT_TYPE_GSM_BS_OUT:
-		SCAT(msgtext, " LCR->BSC");
-		break;
-	case PORT_TYPE_GSM_BS_IN:
-		SCAT(msgtext, " LCR<-BSC");
-		break;
-	case PORT_TYPE_GSM_MS_OUT:
-		SCAT(msgtext, " LCR->MS");
-		break;
-	case PORT_TYPE_GSM_MS_IN:
-		SCAT(msgtext, " LCR<-MS");
-		break;
-	}
+	if (port) {
+		switch(port->p_type) {
+		case PORT_TYPE_GSM_BS_OUT:
+			SCAT(msgtext, " LCR->BSC");
+			break;
+		case PORT_TYPE_GSM_BS_IN:
+			SCAT(msgtext, " LCR<-BSC");
+			break;
+		case PORT_TYPE_GSM_MS_OUT:
+			SCAT(msgtext, " LCR->MS");
+			break;
+		case PORT_TYPE_GSM_MS_IN:
+			SCAT(msgtext, " LCR<-MS");
+			break;
+		}
+	} else
+		SCAT(msgtext, " ----");
 
 	/* init trace with given values */
 	start_trace(mISDNport?mISDNport->portnum:-1,