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Overload
Master Cheater
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Joined: 08 Feb 2008
Posts: 293
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 Posted: Wed Jul 16, 2008 1:41 am Post subject: [C] Connect to a Port? |
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How can i connect to a port on a website?
I just want to make a connection to my website on port 80.
I googled, but all i found was people with errors. I still looked through the errors, didn't really find any code. So could someone please explain how this is done.
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DoomsDay
Grandmaster Cheater
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Joined: 06 Jan 2007
Posts: 768
Location: %HomePath%
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Noz3001
I'm a spammer
 Reputation: 26
Joined: 29 May 2006
Posts: 6220
Location: /dev/null
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| Posted: Wed Jul 16, 2008 4:04 am Post subject: |
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| Code: | bool Running = true;
int sockfd, newsockfd, portno = 6667, clilen;
struct sockaddr_in serv_addr, cli_addr;
pthread_t ClientHandlerThread;
printf( "\n----------\n" );
// Create socket
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd < 0) {
printf( "Unable to create socket!\n" );
return 1;
}
bzero((char *) &serv_addr, sizeof(serv_addr));
// Bind socket
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = INADDR_ANY;
serv_addr.sin_port = htons(portno);
if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
printf( "Unable to bind socket!\n" );
return 1;
}
while( Running == true )
{
// Begin listening
listen(sockfd,5);
clilen = sizeof(cli_addr);
newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, (socklen_t *) &clilen);
// Handle Client
pthread_create(&ClientHandlerThread, NULL, ClientHandler, &newsockfd);
} |
i handled the client like:
| Code: | void *ClientHandler( void* sock )
{
const char *reply = "\r<center>Test Server</center>\r";
char buffer[1024];
int socket;
memcpy( &socket, sock, sizeof(int) );
write( socket, reply, strlen(reply) );
printf( "Connection on socket %i...\n", socket );
close(socket);
pthread_exit(NULL);
} |
The portno variable at the top defines the port btw.
EDIT: Oh, you want to make the connection..
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oib111
I post too much
 Reputation: 0
Joined: 02 Apr 2007
Posts: 2947
Location: you wanna know why?
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| Posted: Wed Jul 16, 2008 7:24 am Post subject: |
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| Code: |
#include <winsock2.h>
#include <ws2tcpip.h>
#include <windows.h>
#include <iostream>
#pragma comment(lib, "WS2_32.lib")
#define DEFAULT_PORT "80"
int main() {
struct addrinfo hints, *result, *ptr;
SOCKET ConnectSocket;
WSADATA wsaData;
if(WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
std::cout<<"WSAStartup failed with error: "<<WSAGetLastError();
_getch();
return 1;
}
ZeroMemory(&hints, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
if(getaddrinfo("google.com", DEFAULT_PORT, &hints, &result) != 0) {
std::cout<<"getadrrinfo failed with error: "<<WSAGetLastError();
_getch();
WSACleanup();
return 1;
}
for(ptr = result; ptr != NULL; ptr = ptr->ai_next) {
ConnectSocket = socket(ptr->ai_family, ptr->ai_socktype, ptr->ai_protocol);
if(ConnectSocket == INVALID_SOCKET) {
std::cout<<"socket failed with error: "<<WSAGetLastError();
_getch();
freeaddrinfo(result);
WSACleanup();
return 1;
}
if(connect(ConnectSocket, ptr->ai_addr, (int)ptr->ai_addrlen) != SOCKET_ERROR) {
break;
}
else {
std::cout<<"connect failed with error: "<<WSAGetLastError();
_getch();
freeaddrinfo(result);
WSACleanup();
return 1;
}
}
freeaddrinfo(result);
_getch();
return 0;
}
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_________________
| 8D wrote: |
cigs dont make people high, which weed does, which causes them to do bad stuff. like killing |
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Overload
Master Cheater
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Joined: 08 Feb 2008
Posts: 293
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| Posted: Wed Jul 16, 2008 2:43 pm Post subject: |
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| thanks oib. Thats awesome. I would +rep you but it says i have to wait like a million seconds -_-
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atom0s
Moderator
 Reputation: 205
Joined: 25 Jan 2006
Posts: 8585
Location: 127.0.0.1
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| Posted: Sun Jul 20, 2008 10:29 am Post subject: |
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| Overload wrote: | | thanks oib. Thats awesome. I would +rep you but it says i have to wait like a million seconds -_- |
+Rep Microsoft because the code he posted is just a slightly changed version of whats posted on the MSDN:
http://msdn.microsoft.com/en-us/library/ms737591%28VS.85%29.aspx
_________________
- Retired. |
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oib111
I post too much
Reputation: 0
Joined: 02 Apr 2007
Posts: 2947
Location: you wanna know why?
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| Posted: Sun Jul 20, 2008 10:53 am Post subject: |
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Yea. I read the tutorial at MSDN, and learned some Winsock, big woop. I remembered the functions and their parameters and the variables I needed and how it worked. Sorry if my code happens to be similar, because well that's how I learned, so it's gonna be similar.
_________________
| 8D wrote: |
cigs dont make people high, which weed does, which causes them to do bad stuff. like killing |
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