Пример #1
0
int main(int argc, char* argv[])
{
	//1 初始化Socket库
	WSADATA wsa={0};
	WSAStartup(MAKEWORD(2,2),&wsa);
	//2 使用(TCP/UDP通信)...
  	UDPClient();
	//3 卸载
	WSACleanup();
	return 0;
}
Пример #2
0
int main(int argc, char **argv)
{
    double ce=0.0, ab=0.0;
    struct timeval start, stop;
    int totalTime=0;
    
    //使用getopt来获取输入参数
    int c;
    
    while ((c = getopt(argc, argv, "p:h:s:n:m:r:i:t:c:")) != EOF)
    {
        switch (c)
        {

            case 'i':
            printf("Set print mode: %d\n",atoi(optarg));
            debug = atoi(optarg);

            break;

            case 'p':
            if (debug == 1)
                printf("INFO:udp portnumber: %d\n", atoi(optarg));
            i_PortNumbUDP = atoi(optarg);
            break;
            
            case 'h':
            if (debug == 1)
                printf("INFO:hostname: %s\n", optarg);
            lp_ServerName = optarg;
            break;
            
            case 's':
            if (debug == 1)
                printf("INFO:packet size: %d\n", atoi(optarg));
            i_PktSize = atoi(optarg);
            if (i_PktSize > MAX_PKT_SIZE)
            i_PktSize = MAX_PKT_SIZE;
            break;
            
            case 'n':
            if (debug == 1)
                printf("INFO:number of packet pair: %d\n", atoi(optarg));
            i_PktNumbPP = atoi(optarg);
            if (i_PktNumbPP > MAX_PKT_NUM / 2)
            i_PktNumbPP = MAX_PKT_NUM / 2;
            break;
            
            case 'm':
            if (debug == 1)
                printf("INFO:length of packet train: %d\n", atoi(optarg));
            i_PktNumbPT = atoi(optarg);
            if (i_PktNumbPT > MAX_PKT_NUM)
            i_PktNumbPT = MAX_PKT_NUM;
            break;
            
            case 'r':
            if (debug == 1)
                printf("INFO:overwrite packet train rate: %d\n", atoi(optarg));
            i_rate = atoi(optarg);
            break;
            
            case 't':
            if (debug == 1)
                printf("INFO:overwirte test time: %d\n", atoi(optarg));
            test_time = atoi(optarg);
            break;
            
            case 'c':
            if (debug == 1)
                printf("INFO:overwrite test count: %d\n", atoi(optarg));
            test_count = atoi(optarg);
            break;           
            

            case '?':
            printf("ERROR: illegal option %s\n", argv[optind-1]);
            printf("HELP: -p udp_portnumber -h hostname -s packet_size_bytes -n num_packet_pair -m train_length\n");
            exit(1);
            break;

            
            default:
            printf("ERROR:no handler for option %c\n", c);
            if (debug == 1)
                printf("INFO:Usage: -p udp_portnumber -h hostname -s packet_size_bytes -n num_packet_pair -m train_length\n");
            exit(1);
            break;
        }
    }
    
    // 处理ctrl-C事件,触发后执行CleanUp
    signal(SIGINT, CleanUp);
    
    
    // 初始化TCP、UDP
    TCPClient(lp_ServerName, i_PortNumbTCP); 
    UDPClient(lp_ServerName, i_PortNumbUDP);
    
    // 确定时间精度
    ProbeTimer();
    

    for (test_i = 0; test_i<test_count; test_i++)
    {
        // 记录测量开始时间
        gettimeofday(&start, NULL);

        //初始化测试时间与测试时长
        initTestParam();
        
        ce = PerformEst(PacketPair, i_PktNumbPP, 0);
        printf("--Ce = %.2f Mbps\n", ce );
        
        ab = PerformEst (PacketTrain, i_PktNumbPT, ce);
        printf("--Ab = %.2f Mbps\n", ab);
        
        // 记录测量停止时间
        gettimeofday(&stop, NULL);
        totalTime = (stop.tv_sec - start.tv_sec) * 1000000 +
        (stop.tv_usec - start.tv_usec);
        
        printf("--Time = %.3f Secs\n\n\n", (totalTime / (float)1000000));
        if (test_time != -1 && test_i != test_count - 1)
            mySleep(interval - (totalTime / (float)1000000));
    }


    CleanUp(0);
    return 0;
} // end main()
Пример #3
0
int main(int argc, char *argv[])
{
	// Variables declarations and definitions
	int i;
	int enterOp2 = 0;
	int connectionType;
	int portNum;
	char hostname[128 + 1];

    char buffer[128 + 1], operand1[128 + 1], operand2[128 + 1], opcode[128 + 1];

    int op1Digit = 0, op2Digit = 0;

	// Let the user to enter the connection type
	printf("Enter the number of the connection type: (1) TCP or (2) UDP.\n");
	printf(PROMPT);
	scanf("%d", &connectionType);

	// Check the user entered connection type
	while(connectionType > 2 || connectionType < 1)
	{
		printf("Error! Invalid connection type number!\n");
		printf(PROMPT);
		scanf("%d", &connectionType);
	}

    // Let the user to enter the hostname
	printf("Enter the host name.\n");
	printf(PROMPT);
	scanf("%s", hostname);

	// Check the host
	if(connectionType == 1)
	{
	    server = gethostbyname(hostname);
	    if (server == NULL) 
	    {
	        perror("Error! No such host!\n");
	        exit(1);
	    }
	}
	else if(connectionType == 2)
	{
	    hp = gethostbyname(hostname);
	    if (hp == NULL) 
	    {
	        perror("Error! No such host!\n");
	        exit(1);
	    }
	}

	// Let the user to enter the port number
	printf("Enter a port number.\n");
	printf(PROMPT);
	scanf("%d", &portNum);

	// Check the user entered port number
	while(portNum < 0 || connectionType > 60000)
	{
		printf("Error! Invalid connection type number!\n");
		printf(PROMPT);
		scanf("%d", &connectionType);
	}

	// Let the user to enter the opcode
    printf("Enter a opcode in binary of 7 digits\n");
    printf("Enter 0000000 for +\n");
    printf("Enter 0000001 for -\n");
    printf("Enter 0000010 for *\n");
    printf("Enter 0000011 for /\n");
    printf(PROMPT);
    scanf("%s", opcode);

    // Validate the user input opcode
    while(strlen(opcode) != 7)
    {
    	printf("Error! Invalid opcode.\n");
	    printf(PROMPT);
	    scanf("%s", opcode);
    }
    for(;;)
    {
		if(strcmp(opcode, "0000000") == 0)
		{
			break;
		}
		else if(strcmp(opcode, "0000001") == 0)
		{
			break;
		}
		else if(strcmp(opcode, "0000010") == 0)
		{
			break;
		}
		else if(strcmp(opcode, "0000011") == 0)
		{
			break;
		}
		else
	    {
	    	printf("Error! Invalid opcode.\n");
		    printf(PROMPT);
		    scanf("%s", opcode);
	    }
	}

	// Let the user to enter the first operand
    printf("Enter a binary number for the first operand.\n");
    printf(PROMPT);
    scanf("%s", operand1);

    // Validate the user input first operand
    while(strlen(operand1) > 8)
    {
    	printf("Error! Invalid first operand.\n");
	    printf(PROMPT);
	    scanf("%s", operand1);
    }

    // Let the user to enter the second operand
    printf("Enter a binary number for the second operand.\n");
    printf(PROMPT);
    scanf("%s", operand2);

    // Validate the user input first operand
    while(strlen(operand2) > 8)
    {
    	printf("Error! Invalid second operand.\n");
	    printf(PROMPT);
	    scanf("%s", operand2);
    }

    // Compose the packet
    // Version
    strcpy(buffer, "1");
    // Type of Msg
    strcat(buffer, "0");
    // Length of Msg
    strcat(buffer, "35");
    // Operand 1
    if(strlen(operand1) < OPERAND_DIGIT_SIZE)
    {
    	for(i = 0; i < OPERAND_DIGIT_SIZE - strlen(operand1); i++)
    		strcat(buffer, "0");
	    strcat(buffer, operand1);
    }
    else
    	strcat(buffer, operand1);
    // Operand 2
    if(strlen(operand2) < OPERAND_DIGIT_SIZE)
    {
    	for(i = 0; i < OPERAND_DIGIT_SIZE - strlen(operand2); i++)
    		strcat(buffer, "0");
	    strcat(buffer, operand2);
    }
    else
    	strcat(buffer, operand2);
    // Opcode
    strcat(buffer, opcode);

    printf("%s\n", buffer);

    // If user input connection type equals 1, call TCPClient() function
	if(connectionType == 1)
	{
		TCPClient(portNum, server, buffer);
	}
	// Else if user input connection type equals 2, call UDPClient() function
	else if(connectionType == 2)
	{
		UDPClient(portNum, hp, buffer);
	}

	return 0;
}