Error code 10042 - Исправление ошибок и поиск оптимальных решений проблем

Господа, помогите разобраться с ошибкой.
Суть проблемы: программа слушает трафик,что-то вроде сниффера, так вот функция ioctlsocket() выдает ошибку 10042:Bad protocol option.
А так как опыта работы с винсокетами у меня практически нет, то не могу понять в чем проблема.
Ниже привожу текст программы.

Код: Выделить всё


Global Data
include('Winsock.inc')
sock     SOCKET
Prmod     ULONG
sopt       ULONG       

code

err#=WSACleanUP()
clear(PWSAData)
if WSAStartup(s32_Version2_0,address(PWSAData))<>0
   Message('Error wsastartup:'&WSAGetLastError())
end

Sock=Createsocket(AF_INET,SOCK_STREAM,IPPROTO_IP)
IF Sock < 0
   Message('Error createsocket - '&WSAGetLastError())
ELSE
  sopt=True
  if setsockopt(Sock,SOL_SOCKET,SO_REUSEADDR,address(sopt),size(sopt))<>0
     Message('Setsockopt error - '&WSAGetLastError())
  else
    s_in.sin_family = AF_INET               
    s_in.sin_addr.s_addr = INADDR_ANY 
  end
END

if BindSocket(Sock,address(s_in),Size(s_in))= SOCKET_ERROR      Message('Error bindsocket - '&WSAGetLastError())
   CloseSocket(Sock)
end

PrMod=1
if ioctlsocket(Sock,SIO_RCVALL,PrMod) <> 0      
   Message('Error - '&WSAGetLastError())    ! здесь выдет ошибку 10042
   CloseSocket(Sock)
   err#=WSACleanUP()
end
!здесь буду принимать данные
!

CloseSocket(Sock)
err#=WSACleanUP()

!!!!!!!!!!!!!!!!!!!!!!!!
файл winsock.inc

OMIT('_EndOfInclude_',_WINSOCK_)
_WINSOCK_  EQUATE(1)
INCLUDE('WINDOWS.INC'),ONCE

WSAData                 GROUP,TYPE
wVersion                  SHORT
wHighVersion              SHORT
szDescription             CSTRING(WSADESCRIPTION_LEN + 1)
szSystemStatus            CSTRING(WSASYS_STATUS_LEN + 1)
iMaxSockets               UNSIGNED
iMaxUdpDg                 UNSIGNED
lpVendorInfo              LONG
                        END
PWSAData      LIKE(WSAData)

in_addr                 GROUP,TYPE
s_b1                      BYTE
s_b2                      BYTE
s_b3                      BYTE
s_b4                      BYTE
S_addr                    LONG
                        END

SOCKADDR_IN             GROUP,TYPE
sin_family                SHORT
sin_port                  USHORT
!sin_addr                  LIKE(in_addr),pre(sin)
sin_addr                  LIKE(in_addr)
sin_zero                  STRING(8)
                        END
s_in                LIKE(SOCKADDR_IN)


SOCKET_ERROR            EQUATE(-1)
s32_Version2_0          EQUATE(1000000010b) 
INADDR_ANY        EQUATE(0)
SIO_RCVALL     EQUATE(98000001h)
SOCKET                  EQUATE(LONG)
SOCK_STREAM             EQUATE(1)
IPPROTO_IP              EQUATE(0)
AF_INET                 EQUATE(2)
SOL_SOCKET              EQUATE(0ffffh)
SO_REUSEADDR      EQUATE(04h)

MAP
 MODULE('WinApi')
  WSAStartup          PROCEDURE(SHORT wVersionRequested, LONG lpWSAData),SIGNED,PASCAL
  WSACleanup          PROCEDURE(),SIGNED,PASCAL
  WSAGetLastError     PROCEDURE(),SIGNED,PASCAL,NAME('WSAGetLastError')
  CreateSocket        PROCEDURE(SIGNED af, SIGNED type, SIGNED protocol),SOCKET,PASCAL,NAME('socket')
  CloseSocket         PROCEDURE(SOCKET s),SIGNED,PROC,PASCAL,NAME('closesocket')
  ReceiveData         PROCEDURE(SOCKET s, LONG lpstrBuffer, SIGNED dwLen, SIGNED flags),SIGNED,PASCAL,NAME('recv')
  BindSocket          PROCEDURE(SOCKET s, LONG lpname, SIGNED namelen),SIGNED,RAW,PASCAL,NAME('bind')
  Listen              PROCEDURE(SOCKET s, SIGNED backlog),SIGNED,PASCAL,NAME('listen')
  setsockopt          PROCEDURE(SOCKET s, SIGNED level, SIGNED optname, LONG lpszOptVal, SIGNED optlen),SIGNED,PASCAL
  Ioctlsocket              PROCEDURE(SOCKET s,LONG,*ULONG),SHORT,RAW,PASCAL,NAME('IOCTLSOCKET')
 END
end

_EndOfInclude_

На компе стоит WinXP Professional SP2,Clarion 6.1.
Заранее благодарна,
Анна.

Источник

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Question
When creating a TcpListener object I am getting error code 10042. Below is the code I am using.

IPHostEntry localMachineInfo = Dns.GetHostEntry(Dns.GetHostName());

IPEndPoint localEP = new IPEndPoint(localMachineInfo.AddressList[0], System.Convert.ToInt32(tbPort.Text));

TcpListener listener = new TcpListener(localEP);

listener.Start();

When debugging this code I notice that right after listener object is created I see error code 10042 (An unknown, invalid, or unsupported option or level was specified in a getsockopt or setsockopt call).

am I missing a configuration setup ?

Answers

You are welcome ,

If you feel my replies helped you in your problem. Please mark as Answered.

Best Regards,

Rizwan aka RizwanSharp

Источник

I am trying to listen a socket using multicast but it seems that am not using the setsockopt function well. I have been searching the meaning of the error code 10042 and I have found https://learn.microsoft.com/windows/win32/winsock/windows-sockets-error-codes-2 but I don’t understand the explanation.

Here it is my function where I create a socket to listen a port inside a multicast group:

/* Includes */
#include <windows.h>
#include <winsock.h>
#include <iostream>
#include <cstdlib>
#pragma comment (lib, "Ws2_32.lib")

/* Defines */
#define BUFLEN                  1024
#define MULTICAST_GROUP                 "225.30.8.1"
#define LOCAL_IP                        "192.168.6.200"
#define DEFAULT_FTI_PORT                8600

/* Structs */
typedef struct {
    uint32_t receive_data[BUFLEN];          // receive data
}comm_data_t;

typedef struct {
    SOCKET sockfd;                      // RX socket ID
    int long_dir;                       // size of address
    struct sockaddr_in socket_addr;     // client socket struct
    struct sockaddr_in socket_sender;   // sender socket struct
    comm_data_t data;                   // data struct
}socket_t;



socket_t socket_info;

/* Returns 1 if succesfull, 0 otherwise */
uint8_t createSocket(void)
{
    WSADATA wsaData;
    struct ip_mreq mreq;                // multicast
    int iResult;

    cout << "IP: " << LOCAL_IP << endl;
    cout << "MULTICAST GROUP: " << MULTICAST_GROUP << endl;
    cout << "PORT: " << DEFAULT_FTI_PORT << endl << endl;

    // Initialize Winsock
    iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
    if (iResult != 0) {
        printf("[SOCKET] WSAStartup failed with error: %dn", iResult);
        return 0;
    }

    memset(&socket_info.socket_addr, 0, sizeof(socket_info.socket_addr));
    socket_info.socket_addr.sin_family = AF_INET;
    socket_info.socket_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    socket_info.socket_addr.sin_port = htons(DEFAULT_FTI_PORT);
    socket_info.long_dir = sizeof(socket_info.socket_sender);

    // Create a new socket to make a client connection.
    if ((socket_info.sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0)
    {
        printf("[SOCKET] socket() failed! Error code: %ldn", WSAGetLastError());
        WSACleanup();
        return 0;
    }
    else
        printf("[SOCKET] socket() is OK!n");

    if (bind(socket_info.sockfd, (struct sockaddr*) &socket_info.socket_addr, sizeof(socket_info.socket_addr)) < 0)
    {
        printf("[SOCKET] bind() failed! Error code: %ldn", WSAGetLastError());
        return 0;
    }
    else
        printf("[SOCKET] bind() is OK!n");

    // Set multicast option
    mreq.imr_multiaddr.s_addr = inet_addr(MULTICAST_GROUP);
    mreq.imr_interface.s_addr = inet_addr(LOCAL_IP);
    if ( (setsockopt(socket_info.sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char*) &mreq, sizeof(mreq))) < 0)
    {
        printf("[SOCKET] setsockopt() failed! Error code: %ldn", WSAGetLastError());
        return 0;
    }
    else
        printf("[SOCKET] setsockopt() is OK!n");

    return 1;
}

And then I have another function where I read the received data:

/* Returns number of bytes received */
uint8_t readFromSocket(void)
{
    int32_t BytesReceived = 0;
    
    /* RECEIVE DATA */
     BytesReceived = recvfrom(socket_info.sockfd, (char*) &socket_info.data.receive_data,
                              BUFLEN, 0,
                              (struct sockaddr*) &socket_info.socket_sender,
                              &socket_info.long_dir); 
    
    if (BytesReceived < 0)
    {
        printf("[SOCKET] recvfrom() error %ld.n", WSAGetLastError());
        return 0;
    }
    else
        return BytesReceived ;
}

It seems that I am not able to join myself to the multicast group, but I don’t know where I am failing.

I am using UDP protocol, so if I change the parameter of setsockopt IPPROTO_IP to IPPROTO_UDP, I get the error code 10022.

What do these errors mean and how can I do it correctly?

Источник

I�m trying to build an application in VB.NET that read GPRS communication protocols, between a GPS Tracker and Server, but when my socket tries to begin receiving the data that came from the tracker I get the error 10042.

Anyone knows what can make this to happen??? And how to fix it???

(I also wrote a client app to prove it with my server side app and it works good)

I’m posting the entery code so you can see it well.

Imports System
Imports System.Net
Imports System.Net.Sockets
Imports System.Text
Imports System.Threading
Imports Microsoft.VisualBasic
‘ State object for reading client data asynchronously
Public Class StateObject
‘ Client socket.
Public workSocket As Socket = Nothing
‘ Size of receive buffer.
Public Const BufferSize As Long = 1078624
‘ Receive buffer.
Public buffer(BufferSize) As Byte
‘ Received data string.
Public sb As New StringBuilder
End Class ‘StateObject
Public Class AsynchronousSocketListener
‘ Thread signal.
Public Shared allDone As New ManualResetEvent(False)
‘ This server waits for a connection and then uses asychronous operations to
‘ accept the connection, get data from the connected client,
‘ echo that data back to the connected client.
‘ It then disconnects from the client and waits for another client.
Public Shared Sub Main()
‘ Data buffer for incoming data.
Dim bytes() As Byte = New [Byte](1023) {}
‘ Establish the local endpoint for the socket.
Dim ipHostInfo As IPHostEntry = Dns.Resolve(Dns.GetHostName())
Dim ipAddress As IPAddress = ipHostInfo.AddressList(0)
Dim localEndPoint As New IPEndPoint(ipAddress, 8000)
‘ Create a TCP/IP socket.
Dim listener As New Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)
‘ Bind the socket to the local endpoint and listen for incoming connections.
listener.Bind(localEndPoint)
listener.Listen(100)
While True
‘ Set the event to nonsignaled state.
allDone.Reset()
‘ Start an asynchronous socket to listen for connections.
Console.WriteLine(«Waiting for a connection…»)
listener.BeginAccept(New AsyncCallback(AddressOf AcceptCallback), listener)
‘ Wait until a connection is made and processed before continuing.
allDone.WaitOne()
End While
End Sub ‘Main
Public Shared Sub AcceptCallback(ByVal ar As IAsyncResult)
‘ Get the socket that handles the client request.
Dim listener As Socket = CType(ar.AsyncState, Socket)
‘ End the operation.
Dim handler As Socket = listener.EndAccept(ar)
‘ Create the state object for the async receive.
Dim state As New StateObject
state.workSocket = handler
handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, New AsyncCallback(AddressOf ReadCallback), state)
‘handler.BeginConnect
End Sub ‘AcceptCallback
Public Shared Sub ReadCallback(ByVal ar As IAsyncResult)
Dim content As String = String.Empty
‘ Retrieve the state object and the handler socket
‘ from the asynchronous state object.
Dim state As StateObject = CType(ar.AsyncState, StateObject)
Dim handler As Socket = state.workSocket
‘ Read data from the client socket.
Dim bytesRead As Integer = handler.EndReceive(ar)
If bytesRead > 0 Then
‘ There might be more data, so store the data received so far.
state.sb.Append(Encoding.ASCII.GetString(state.buffer, 0, bytesRead))
‘ Check for end-of-file tag. If it is not there, read
‘ more data.
content = state.sb.ToString()
If content.IndexOf(«rn») > -1 Then
‘ All the data has been read from the
‘ client. Display it on the console.
Console.WriteLine(«Read {0} bytes from socket. » + vbLf + » Data : {1}», content.Length, content)
‘ Echo the data back to the client.
Send(handler, content)
Else
‘ Not all data received. Get more.
handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, New AsyncCallback(AddressOf ReadCallback), state)
End If
End If
End Sub ‘ReadCallback
Private Shared Sub Send(ByVal handler As Socket, ByVal data As String)
‘ Convert the string data to byte data using ASCII encoding.
Dim byteData As Byte() = Encoding.ASCII.GetBytes(data)
‘ Begin sending the data to the remote device.
handler.BeginSend(byteData, 0, byteData.Length, 0, New AsyncCallback(AddressOf SendCallback), handler)
End Sub ‘Send
Private Shared Sub SendCallback(ByVal ar As IAsyncResult)
‘ Retrieve the socket from the state object.
Dim handler As Socket = CType(ar.AsyncState, Socket)
‘ Complete sending the data to the remote device.
Dim bytesSent As Integer = handler.EndSend(ar)
Console.WriteLine(«Sent {0} bytes to client.», bytesSent)
handler.Shutdown(SocketShutdown.Both)
handler.Close()
‘ Signal the main thread to continue.
allDone.Set()
End Sub ‘SendCallback
End Class ‘AsynchronousSocketListener

May 25 ’10
#1

Источник

Я пытаюсь прослушать сокет с помощью многоадресной рассылки, но кажется, что я плохо использую функцию setsockopt. Я искал значение кода ошибки 10042 и нашел https://learn.microsoft.com/windows/win32/winsock/windows-sockets-error-codes-2, но я не понимаю объяснения.

Вот моя функция, где я создаю сокет для прослушивания порта внутри многоадресной группы:

/* Includes */
#include <windows.h>
#include <winsock.h>
#include <iostream>
#include <cstdlib>
#pragma comment (lib, "Ws2_32.lib")

/* Defines */
#define BUFLEN                  1024
#define MULTICAST_GROUP                 "225.30.8.1"
#define LOCAL_IP                        "192.168.6.200"
#define DEFAULT_FTI_PORT                8600

/* Structs */
typedef struct {
    uint32_t receive_data[BUFLEN];          // receive data
}comm_data_t;

typedef struct {
    SOCKET sockfd;                      // RX socket ID
    int long_dir;                       // size of address
    struct sockaddr_in socket_addr;     // client socket struct
    struct sockaddr_in socket_sender;   // sender socket struct
    comm_data_t data;                   // data struct
}socket_t;



socket_t socket_info;

/* Returns 1 if succesfull, 0 otherwise */
uint8_t createSocket(void)
{
    WSADATA wsaData;
    struct ip_mreq mreq;                // multicast
    int iResult;

    cout << "IP: " << LOCAL_IP << endl;
    cout << "MULTICAST GROUP: " << MULTICAST_GROUP << endl;
    cout << "PORT: " << DEFAULT_FTI_PORT << endl << endl;

    // Initialize Winsock
    iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
    if (iResult != 0) {
        printf("[SOCKET] WSAStartup failed with error: %dn", iResult);
        return 0;
    }

    memset(&socket_info.socket_addr, 0, sizeof(socket_info.socket_addr));
    socket_info.socket_addr.sin_family = AF_INET;
    socket_info.socket_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    socket_info.socket_addr.sin_port = htons(DEFAULT_FTI_PORT);
    socket_info.long_dir = sizeof(socket_info.socket_sender);

    // Create a new socket to make a client connection.
    if ((socket_info.sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0)
    {
        printf("[SOCKET] socket() failed! Error code: %ldn", WSAGetLastError());
        WSACleanup();
        return 0;
    }
    else
        printf("[SOCKET] socket() is OK!n");

    if (bind(socket_info.sockfd, (struct sockaddr*) &socket_info.socket_addr, sizeof(socket_info.socket_addr)) < 0)
    {
        printf("[SOCKET] bind() failed! Error code: %ldn", WSAGetLastError());
        return 0;
    }
    else
        printf("[SOCKET] bind() is OK!n");

    // Set multicast option
    mreq.imr_multiaddr.s_addr = inet_addr(MULTICAST_GROUP);
    mreq.imr_interface.s_addr = inet_addr(LOCAL_IP);
    if ( (setsockopt(socket_info.sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char*) &mreq, sizeof(mreq))) < 0)
    {
        printf("[SOCKET] setsockopt() failed! Error code: %ldn", WSAGetLastError());
        return 0;
    }
    else
        printf("[SOCKET] setsockopt() is OK!n");

    return 1;
}

А затем у меня есть еще одна функция, где я читаю полученные данные:

/* Returns number of bytes received */
uint8_t readFromSocket(void)
{
    int32_t BytesReceived = 0;
    
    /* RECEIVE DATA */
     BytesReceived = recvfrom(socket_info.sockfd, (char*) &socket_info.data.receive_data,
                              BUFLEN, 0,
                              (struct sockaddr*) &socket_info.socket_sender,
                              &socket_info.long_dir); 
    
    if (BytesReceived < 0)
    {
        printf("[SOCKET] recvfrom() error %ld.n", WSAGetLastError());
        return 0;
    }
    else
        return BytesReceived ;
}

Кажется, я не могу присоединиться к многоадресной группе, но я не знаю, где я терплю неудачу.

Я использую протокол UDP, поэтому, если я изменю параметр setsockopt IPPROTO_IP на IPPROTO_UDP, я получу код ошибки 10022.

Что означают эти ошибки и как я могу сделать это правильно?

2 ответа

Вы используете старый набор включаемых файлов. Вместо этого:

#include <windows.h>
#include <winsock.h>

Использовать это:

#include <winsock2.h>
#include <ws2tcpip.h>

И он должен работать как положено.

dbush
22 Дек 2022 в 05:48

Я нашел решение самостоятельно.

Я использую другой родной .lib из Windows.

Раньше в моем заголовочном файле у меня было:

#pragma comment (lib, "Ws2_32.lib")

Но теперь я использую другой .lib. Это библиотека, которую я использую прямо сейчас и работает для меня:

#pragma comment (lib, "wsock32.lib")

Я полагаю, что это вопрос дистрибутива моей ОС.

В любом случае большое спасибо за ваши комментарии.

Londo
22 Дек 2022 в 11:20

Источник

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