wsastartup

string SendRequestToServer(std::string url) { struct sockaddr_in addr = { 0 }; struct hostent *host = NULL; // If the URL begins with http://, remove it. if(url.find("http://") == 0) url.erase(0, 7); // Get the host name. string hst = url.substr(0, url.find('/', 0)); url.erase(0, url.find("/", 0)); // Connect to the host. host = gethostbyname(hst.c_str()); if(!host) { Print("%s", "Could not resolve the hostname."); int error = WSAGetLastError(); return "failed"; } } It seems I'm returning "failed" quite frequently. Here are the values of various variables when my breakpoint at "return failed"

How does WSAStartup function initiates use of the Winsock DLL? According to the documentation The WSAStartup function must be the first Windows Sockets function called by an application or DLL. It allows an application or DLL to specify the version of Windows Sockets required and retrieve details of the specific Windows Sockets implementation. The application or DLL can only issue further Windows Sockets functions after successfully calling WSAStartup. This function initializes WSADATA data structure, but in socket programming we don't pass WSDATA to any function so how does the program comes

I am using EVC++ and I want to compile the program which uses the sockets. I've included #include <winsock2.h> And I have included in project properties a path to Ws2.lib But still get the error at link step: error LNK2019: unresolved external symbol WSAStartup referenced in function ... How to resolve this problem? #pragma comment(lib,"WS2_32") after all #include 's You haven't linked your program with the winsock library. The Winsock 2 library is called ws2_32.lib (static) or ws2_32.dll (dynamic). It should already be on your system; you just need to tell your compiler/linker to link your