Re: [Dev-C++] Winsock Help Request

[Lorenzo <co...@in...>]

You have to add library to project, in the following mode:
1. go to theProject menu
2. select Project option
3. click on the Load object files button
4. select file libwsock32.a in the lib directory of dev-cpp
5. save all and rebuild all. Good luck.

----- Original Message -----
From: <Dou...@ao...>
To: <dev...@li...>
Sent: Sunday, March 18, 2001 5:10 PM
Subject: [Dev-C++] Winsock Help Request


> I am hoping someone who uses winsock can help me.  I get the following
linker
> errors when I build the textbook example program shown below the error
> listing:
>
> c:\windows\TEMP\ccdc2agb.o: In function `doit(int, char **)':
> //c/dev-c_~1/localh~1.cpp:7: undefined reference to `gethostname@8'
> //c/dev-c_~1/localh~1.cpp:9: undefined reference to `WSAGetLastError@0'
> //c/dev-c_~1/localh~1.cpp:14: undefined reference to `gethostbyname@4'
> //c/dev-c_~1/localh~1.cpp:23: undefined reference to `inet_ntoa@4'
> c:\windows\TEMP\ccdc2agb.o: In function `main':
> //c/dev-c_~1/localh~1.cpp:32: undefined reference to `WSAStartup@8'
> //c/dev-c_~1/localh~1.cpp:38: undefined reference to `WSACleanup@0'
>
> #include <iostream.h>
> #include <winsock.h>
>
> int doit(int, char **)
> {
>     char ac[80];
>     if (gethostname(ac, sizeof(ac)) == SOCKET_ERROR) {
>         cerr << "Error " << WSAGetLastError() <<
>                 " when getting local host name." << endl;
>         return 1;
>     }
>     cout << "Host name is " << ac << "." << endl;
>
>     struct hostent *phe = gethostbyname(ac);
>     if (phe == 0) {
>         cerr << "Yow! Bad host lookup." << endl;
>         return 1;
>     }
>
>     for (int i = 0; phe->h_addr_list[i] != 0; ++i) {
>         struct in_addr addr;
>         memcpy(&addr, phe->h_addr_list[i], sizeof(struct in_addr));
>         cout << "Address " << i << ": " << inet_ntoa(addr) << endl;
>     }
>
>     return 0;
> }
>
> int main(int argc, char *argv[])
> {
>     WSAData wsaData;
>     if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0) {
>         return 255;
>     }
>
>     int retval = doit(argc, argv);
>
>     WSACleanup();
>
>     return retval;
> }
>
> When I substitute "winsock2.h" for "winsock.h" I get the compiler error:
>
> ... \INCLUDE\winsock2.h:46:unbalanced '#endif'
>