76 static int  sSocket      = -1;  variable
175     sSocket = SocketWithCloseExec(AF_INET6, SOCK_DGRAM, 0, kSocketNonBlock);  in PrepareSocket()
176     VerifyOrDie(sSocket >= 0, OT_EXIT_ERROR_ERRNO);  in PrepareSocket()
179     val = fcntl(sSocket, F_GETFL, 0);  in PrepareSocket()
182     VerifyOrDie(fcntl(sSocket, F_SETFL, val) == 0, OT_EXIT_ERROR_ERRNO);  in PrepareSocket()
191     if (bind(sSocket, (struct sockaddr *)&sockAddr, sizeof(sockAddr)) == -1)  in PrepareSocket()
199 …  if (setsockopt(sSocket, SOL_SOCKET, SO_BINDTODEVICE, sInterfaceName, strlen(sInterfaceName)) < 0)  in PrepareSocket()
208     if (getsockname(sSocket, (struct sockaddr *)&sockAddr, &sockLen) == -1)  in PrepareSocket()
223     VerifyOrExit(sSocket >= 0, error = OT_ERROR_INVALID_STATE);  in SendPacket()
230     ret = sendto(sSocket, aBuffer, aLength, 0, (struct sockaddr *)&sockAddr, sizeof(sockAddr));  in SendPacket()
530     close(sSocket);  in otPlatTrelDisable()
531     sSocket = -1;  in otPlatTrelDisable()
669     FD_SET(sSocket, &aContext->mReadFdSet);  in platformTrelUpdateFdSet()
673         FD_SET(sSocket, &aContext->mWriteFdSet);  in platformTrelUpdateFdSet()
676     if (aContext->mMaxFd < sSocket)  in platformTrelUpdateFdSet()
678         aContext->mMaxFd = sSocket;  in platformTrelUpdateFdSet()
691     if (FD_ISSET(sSocket, &aContext->mWriteFdSet))  in platformTrelProcess()
696     if (FD_ISSET(sSocket, &aContext->mReadFdSet))  in platformTrelProcess()
698         ReceivePacket(sSocket, aInstance);  in platformTrelProcess()