Я пишу пример программы для получения файла с какого-либо сайта.
но он отвечает мне, файл не найден, я не знаю, как сделать HTTP-заголовок.
Кто-нибудь, помогите мне в написании http заголовков.
И я пытаюсь распечатать IP таким образом (printf ("% s \ n", ptr-> ai_addr-> sa_data);)
но не понимаю, как распечатать IP-адрес ??, я делаю это правильно ??
мой код: -
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <stdlib.h>
#include <stdio.h>
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <stdlib.h>
#include <stdio.h>
// Need to link with Ws2_32.lib, Mswsock.lib, and Advapi32.lib
#pragma comment (lib, "Ws2_32.lib")
#pragma comment (lib, "Mswsock.lib")
#pragma comment (lib, "AdvApi32.lib")
#define DEFAULT_BUFLEN 512
#define DEFAULT_PORT "80"
int __cdecl main(int argc, char **argv)
{
WSADATA wsaData;
SOCKET ConnectSocket = INVALID_SOCKET;
struct addrinfo *result = NULL,
*ptr = NULL,
hints;
char *sendbuf = "GET / HTTP/1.1[CRLF] Host: www.espncricinfo.com[CRLF]Connection: close[CRLF]User-Agent: Web-sniffer/1.0.37 (+http://web-sniffer.net/)[CRLF]Accept-Encoding: gzip[CRLF]Accept-Charset: ISO-8859-1,UTF-8;q=0.7,*;q=0.7[CRLF]Cache-Control: no-cache[CRLF]Accept-Language: de,en;q=0.7,en-us;q=0.3 \r\n";
char buff[DEFAULT_BUFLEN],recvbuf[512];
int iResult;
int recvbuflen = DEFAULT_BUFLEN;
// Validate the parameters
if (argc != 1) {
printf("usage: %s server-name\n", argv[0]);
return 1;
}
// Initialize Winsock
iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
if (iResult != 0) {
printf("WSAStartup failed with error: %d\n", iResult);
return 1;
}
ZeroMemory( &hints, sizeof(hints) );
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
// Resolve the server address and port
iResult = getaddrinfo("122.169.255.9",DEFAULT_PORT, &hints, &result);
if ( iResult != 0 ) {
printf("getaddrinfo failed with error: %d\n", iResult);
WSACleanup();
return 1;
}
// Attempt to connect to an address until one succeeds
for(ptr=result; ptr != NULL ;ptr=ptr->ai_next) {
// Create a SOCKET for connecting to server
ConnectSocket = socket(ptr->ai_family, ptr->ai_socktype,
ptr->ai_protocol);
printf("inside loop %s ",ptr->ai_addr->sa_data);
if (ConnectSocket == INVALID_SOCKET) {
printf("socket failed with error: %ld\n", WSAGetLastError());
WSACleanup();
return 1;
}
// Connect to server.
iResult = connect(ConnectSocket, ptr->ai_addr, (int)ptr->ai_addrlen);
printf("%d\n",ptr->ai_addrlen);
// printf("%s\n",ptr->ai_addr->sa_family);
printf("%s\n",ptr->ai_addr->sa_data);
if (iResult == SOCKET_ERROR) {
printf("socket error\n");
printf("failed with error: %d\n", WSAGetLastError());
closesocket(ConnectSocket);
ConnectSocket = INVALID_SOCKET;
continue;
}
break;
}
freeaddrinfo(result);
if (ConnectSocket == INVALID_SOCKET) {
printf("Unable to connect to server!\n");
WSACleanup();
return 1;
}
// Send an initial buffer
char filepath[]="pakistan/content/current/story/517271.html";
sprintf(buff,"GET %s\r\n",filepath);
iResult = send( ConnectSocket,buff, (int)strlen(buff), 0 );
if (iResult == SOCKET_ERROR)
{
printf("send failed with error: %d\n", WSAGetLastError());
closesocket(ConnectSocket);
WSACleanup();
return 1;
}
printf("Bytes Sent: %ld\n", iResult);
// shutdown the connection since no more data will be sent
iResult = shutdown(ConnectSocket, SD_SEND);
if (iResult == SOCKET_ERROR) {
printf("shutdown failed with error: %d\n", WSAGetLastError());
closesocket(ConnectSocket);
WSACleanup();
return 1;
}
do
{
iResult = recv(ConnectSocket, recvbuf, recvbuflen, 0);
//if ( iResult > 0 ) printf("Bytes received: %d\n", iResult);
if ( iResult > 0 )
{
printf("Bytes received: %d\n", iResult);
printf("%s",recvbuf);
}
else if ( iResult == 0 )
printf("Connection closed\n");
else
printf("recv failed with error: %d\n", WSAGetLastError());
} while( iResult>0 );
// cleanup
closesocket(ConnectSocket);
WSACleanup();
return 0;
}