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I've just started learning winsock through the "Beej's guide to network programming" book. I'm programming under windows and running it through gcc. This is just a start to writing my first server program but it gives me these errors when I try to compile. /* Server */ #include <iostream> #include <windows.h> #include <winsock2.h> using namespace std; const int winsockVersion = 2; #define BACKLOG 10 #define PORT 3000 int main(void){ WSADATA wsadata; if (WSAStartup(MAKEWORD(winsockVersion,0),&wsadata) == 0){ struct addrinfo hints, *res; memset(&hints,0,sizeof hints); hints.ai_family = AF_INET; hints.ai_socktype = SOCK_STREAM; hints.ai_flags = AI_PASSIVE; if ( getaddrinfo(NULL,PORT,&hints,&res) == 0 ){ cout<<"-Call to get addrinfo successful!." << endl; } cout<<"res af_family" << res->ai_family << endl; } //clear stuff if( WSACleanup() != 0){ cout<<"-WSACleanup unsuccessful" << endl; }else{ cout<<"-WSACleanup successful" << endl; } return 0; } these are the errors I'm receiving g++ -o server.exe server.cpp -lws2_32 Process started >>> server.cpp: In function `int main()': server.cpp:20: error: aggregate `addrinfo hints' has incomplete type and cannot be defined server.cpp:25: error: `AI_PASSIVE' was not declared in this scope server.cpp:27: error: `getaddrinfo' was not declared in this scope server.cpp:31: error: invalid use of undefined type `struct addrinfo' server.cpp:20: error: forward declaration of `struct addrinfo' server.cpp:54:2: warning: no newline at end of file <<< Process finished. Shouldn't the structures and functions be defined in either windows.h or winsock.h?. SOLUTION EDIT to a

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