[OpenSIPStack] Problem with last change in SIPUDPTransport::ReadPacket()

[Gustavo C. <cur...@ho...>]

Hi Joegen:
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I have a problem with the last change in SIPUDPTransport::ReadPacket():
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if( length =3D=3D 0 )
{
 packet.SetSize(0);
 return TRUE; ----> return FALSE;
}
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when SIPUDPTransport::ReadPacket() return false, SIPTransport::ProcessRead(=
) also return false and=20
SIPTransport::ReadThread::Main() finish and no more sip messages are proces=
sed.
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when I debugged SIPUDPSocketList::ReadFrom(), i found this:
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BOOL SIPUDPSocketList::ReadFrom() BOOL ok =3D socket.ReadFrom( bytes, len, =
addr, port ) --> len =3D 2048, addr =3D 127.0.0.1, port =3D 38890  if (os_r=
ecvfrom(buf, len, 0, sa, &size))    int recvResult =3D ::recvfrom(os_handle=
, (char *)buf, len, flags, from, fromlen);   if (!ConvertOSError(recvResult=
, LastReadError))--> recvResult =3D -1, LastReadError =3D 0    BOOL ok =3D =
ConvertOSError(status, lastError, osError);     return PChannel::ConvertOSE=
rror(-2, lastError, osError);      osError =3D GetLastError(); (osError =3D=
 10054 =3D WSAECONNRESET) (Connection reset by peer)      osError |=3D PWIN=
32ErrorFlag; (osError =3D 1073751878)      lastError =3D Miscellaneous; (la=
stError =3D 12)  return lastReadCount > 0;  (lastReadCount =3D 0) LOG( LogE=
rror(), "UDP Socket Read Error (" << socket.GetErrorText() << ")" );   PStr=
ing PChannel::GetErrorText(Errors lastError, int osError) (lastError =3D 12=
) (osError =3D 1073751881)   DWORD err =3D osError & ~PWIN32ErrorFlag; (err=
 =3D 10057 =3D WSAENOTCONN) (Socket not connected) 49:28:50.887 ERR: [CID=
=3D0x0000] UDP Socket Read Error (Socket not connected) bytesRead =3D 0; re=
turn TRUE;  /// return TRUE here.  error in ReadFrom is benign
I don't understand why the errors are differents, but when I searched for t=
he original error (10054), i found this:
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"If sending a datagram using the sendto function results in an "ICMP port u=
nreachable" response and the select function is set for readfds, the progra=
m returns 1 and the subsequent call to the recvfrom function does not work =
with a WSAECONNRESET (10054) error response"
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Maybe some ICMP validation go wrong with winsock. I attach a log.=20
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Thanks for your help.
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Gustavo
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