My first: "error LNK2019: unresolved external symbol" yei!

[eidge]

I'm trying to compile a simple HTTP request sender/receiver, as part of my socket studying.

All the code can be found here:

http://www.madwizard.org/programming/tutorials/netcpp/6

The error I get is:

1>header_client.obj : error LNK2019: unresolved external symbol "void __cdecl FillSockAddr(struct sockaddr_in *,char const *,int)" (?FillSockAddr@@YAXPAUsockaddr_in@@PBDH@Z) referenced in function "bool __cdecl request_headers(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?request_headers@@YA_NABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z)
1>C:\Users\eidge\documents\visual studio 2010\Projects\header_client\Debug\header_client.exe : fatal error LNK1120: 1 unresolved externals

I'm using VS2010Pro.

I've got a main.cpp and http_client.h and http_client.cpp files.

main and http.cpp include http_client.h

This is http_client.h:

#ifndef MYHTTP
#define MYHTTP

#include <iostream>
#include <string>
#include <cstring>

#include <winsock2.h>
#include <ws2tcpip.h>
#pragma comment(lib, "Ws2_32.lib")

extern const int TEMP_BUFFER_SIZE;
extern const std::string DEF_SERVER_NAME;
extern const int  SERVER_PORT;
extern const int  TEMP_BUFFER_SIZE;
extern const char HEAD_REQUEST_PART1[];
extern const char HEAD_REQUEST_PART2[];

// IP number typedef for IPv4
typedef unsigned long IPNumber;

class SocketException
{
public:
    SocketException() {} 
    SocketException(const std::string &pMessage): m_pMessage(pMessage) {}
	virtual ~SocketException() {}

    std::string what() { return m_pMessage; }
private:
    std::string m_pMessage;
};

bool request_headers(const std::string &host);
IPNumber FindHostIp(const std::string &host);
void FillSockAddr(sockaddr_in *pSockAddr, const char *pServerName, int portNumber);

#endif 

This is the function defined in http_client.cpp that is giving the undefined linker error:

void FillSockAddr(sockaddr_in *pSockAddr, const string &pServerName, int portNumber)
{
    // Set family, port and find IP
    pSockAddr->sin_family = AF_INET;
    pSockAddr->sin_port = htons(portNumber);
    pSockAddr->sin_addr.S_un.S_addr = FindHostIp(pServerName);
}

I'd appreciate if anyone can help compile this.

Thanks,

Hugo Ribeira

[DSLq5Di1]

// http_client.h
void FillSockAddr(sockaddr_in *pSockAddr, const char *pServerName, int portNumber);

// http_client.cpp
void FillSockAddr(sockaddr_in *pSockAddr, const string &pServerName, int portNumber) { .. }

[eidge]

What a pair of fresh eyes can do, I've ran this code from end to end trying to figure out some obscure problem...

Thank's and sorry for the stupid question,

Hugo Ribeira