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#include #include #include #include #include #include #define ECHOMAX 255 void DieWithError(char *errorMessage); int main(int argc, char *argv[]){int sock;struct sockaddr_in echoServAddr;struct sockaddr_in echoClntAddr;unsigned int cliAddrLen;char echoBuffer[ECHOMAX];unsigned short echoServPort;int recvMsgSize; if (argc != 2){fprintf(stderr,"Usage: %s \n", argv[0]);exit(1);}echoServPort = atoi(a..