chan_ooh323: Fix infinite loop on read second part of H.225 packet

Fix logic on read second part of H.225 packet. There was infinite loop on
wrong connections due to read before poll.

Change-Id: I42b4bf75c46e4a5c5df5c5ca1f0bd74b8944e7ff

addons/ooh323c/src/oochannels.c

@@ -1061,11 +1061,6 @@ int ooH2250Receive(OOH323CallData *call)
    while(total < len)
    {
       struct pollfd pfds;
-      recvLen = ooSocketRecv (call->pH225Channel->sock, message1, len-total);
-      memcpy(message+total, message1, recvLen);
-      total = total + recvLen;
-
-      if(total == len) break; /* Complete message is received */
       
       pfds.fd = call->pH225Channel->sock;
       pfds.events = POLLIN;
@@ -1085,8 +1080,9 @@ int ooH2250Receive(OOH323CallData *call)
          }
          return OO_FAILED;
       }
-      /* If remaining part of the message is not received in 3 seconds 
-         exit */
+
+      /* exit If remaining part of the message is not received in 3 seconds */
+
       if(!ooPDRead(&pfds, 1, call->pH225Channel->sock))
       {
          OOTRACEERR3("Error: Incomplete H.2250 message received - clearing "
@@ -1099,6 +1095,23 @@ int ooH2250Receive(OOH323CallData *call)
          }
          return OO_FAILED;
       }
+
+      recvLen = ooSocketRecv (call->pH225Channel->sock, message1, len-total);
+      if (recvLen == 0) {
+         OOTRACEERR3("Error in read while receiving H.2250 message - "
+                     "clearing call (%s, %s)\n", call->callType, 
+                     call->callToken);
+         ooFreeQ931Message(pctxt, pmsg);
+         if(call->callState < OO_CALL_CLEAR)
+         {
+            call->callEndReason = OO_REASON_TRANSPORTFAILURE;
+            call->callState = OO_CALL_CLEAR;
+         }
+         return OO_FAILED;
+      }
+      memcpy(message+total, message1, recvLen);
+      total = total + recvLen;
+
    }
 
    OOTRACEDBGC3("Received Q.931 message: (%s, %s)\n",