Using C + + to make a simple Web server (cont.) _c Language

Add Features:
1. Read the Web page from the file and return it to the client instead of writing the page code dead in the code.
Limitations:
1, also can not be based on the URL address parameters, access to the specified page
2, still a single thread

Copy Code code as follows:

//*****************************************************************************
//@ProjectName ZYHTTPD
//@Description My HTTP Server
//@Author Nicolerobin
@Date 2015/02/09
//*****************************************************************************
#include <cstdio>
#include <string>
#include <fstream>
#include <WinSock2.h>
using namespace Std;
#define BUFFER_SIZE 1024
#define HOST "127.0.0.1"
#define PORT 81
#define HEADER "\
http/1.1 ok\r\n\
content-type:text/html; Charset=utf-8\r\n\
Server:zyhttp_v1.0.1\r\n\
Content-length:%ld\r\n\r\n\
"
Const string strpath = "index.html";
#pragma comment (lib, "Ws2_32")
Get File size
Long Getfilelength (string strpath);
Thread function
int main (int argc, char **argv)
{
Define and init an server sockaddr
Sockaddr_in Addrserver;
addrserver.sin_family = af_inet;
Addrserver.sin_addr. S_un. S_ADDR = Inaddr_any;
Addrserver.sin_port = htons (port);
Init Socket DLL
Wsadata Wsadata;
WORD socketversion = Makeword (2, 0);
if (WSAStartup (socketversion, &wsadata)!= 0)
{
printf ("Init socket DLL error!");
Exit (1);
}
Create socket
Socket socketserver = socket (af_inet, sock_stream, 0);
if (Socket_error = = socketserver)
{
printf ("Create socket error!");
Exit (1);
}
Bind Server Socket Host
if (Socket_error = = Bind (Socketserver, (lpsockaddr) &addrserver, sizeof (Addrserver))
{
printf ("Bind Server host failed!");
Exit (1);
}
Listen
if (Socket_error = = Listen (Socketserver, 10))
{
printf ("Listen failed!");
Exit (1);
}
while (true)
{
printf ("Listening ... \ n");
Sockaddr_in addrclient;
int nclientaddrlen = sizeof (addrclient);
SOCKET socketclient = Accept (Socketserver, (sockaddr*) &addrclient, &nclientaddrlen);
if (Socket_error = = socketclient)
{
printf ("Accept failed!");
Break
}
Char Buffer[buffer_size];
memset (buffer, 0, buffer_size);
if (recv (socketclient, buffer, buffer_size, 0) < 0)
{
printf ("Recvive data failed!");
Break
}
printf ("Recv Data: \n%s", buffer);
/*
Response
memset (buffer, 0, buffer_size);
Ifstream Fin (Strpath.c_str (), ios::in | ios::binary);
if (Fin.is_open ())
{
Char sztmp[512] = "";
Fin.read (sztmp, 511);
sprintf_s (buffer, HEADER, Getfilelength (strpath), sztmp);
if (send (socketclient, buffer, strlen (buffer), 0) < 0)
{
printf ("Send data failed!");
Break
}
}
Fin.close ();
*/
Response
Send Header
memset (buffer, 0, buffer_size);
sprintf_s (buffer, HEADER, Getfilelength (strpath));
if (send (socketclient, buffer, strlen (buffer), 0) < 0)
{
printf ("Send data failed!");
Break
}
Ifstream Fin (Strpath.c_str (), ios::in | ios::binary);
if (Fin.is_open ())
{
memset (buffer, 0, buffer_size);
while (Fin.read (buffer, buffer_size-1))
{
if (send (socketclient, buffer, strlen (buffer), 0) < 0)
{
printf ("Send data failed!");
Break
}
memset (buffer, 0, buffer_size);
}
if (send (socketclient, buffer, strlen (buffer), 0) < 0)
{
printf ("Send data failed!");
Break
}
}
Fin.close ();
Closesocket (socketclient);
}
Closesocket (Socketserver);
WSACleanup ();
return 0;
}
Long Getfilelength (String strpath)
{
Ifstream Fin (Strpath.c_str (), ios::in | ios::binary);
FIN.SEEKG (0, Ios_base::end);
Streampos pos = Fin.tellg ();
Long lsize = static_cast<long> (POS);
Fin.close ();
return lsize;
/*
Long lsize = 0;
Ifstream Fin (Strpath.c_str (), ios::in | ios::binary);
Char szbuf[1024*1000] = "";
while (Fin.read (SZBUF, 1024 * 1000-1))
{
Lsize + + strlen (szbuf);
memset (szbuf, 0, 1024*1000);
}
Fin.close ();
Lsize + + strlen (szbuf);
return lsize;
*/
}

Demo diagram

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