Hello ,
I have a source code that could potentially upload files onto an FTP server using winsock. But there seems to be a small glitch and the files are not getting uploaded. Could someone please guide me as to why this is happening. I would be forever indebted. thanks in advance.
#include <string>
#include <winsock.h>
#include <windows.h>
#include <sstream>
#include <iostream>
#include <stdio.h>
#include <cstdlib>
using namespace std;
void stringtoint(const string &s, int &i){
istringstream myStream(s);
myStream>>i;
}
void sendLogIn(SOCKET _LSoc){
char userbuffer[] = "username";
char passbuffer[] = "password";
char username[] = "USER ";
char password[] = "PASS ";
char servermessage[1000];
strcat(username, userbuffer);
strcat(username, "\r\n");
send(_LSoc, username, strlen(username), 0);
Sleep(1000);
recv(_LSoc, servermessage, 1000, 0);
strcat(password, passbuffer);
strcat(password, "\r\n");
send(_LSoc, password, strlen(password), 0);
Sleep(1000);
recv(_LSoc, servermessage, 1000, 0);
}
int sendConnInfo(SOCKET _CSoc){
char servermessage[10000];
char ftpmessage[50];
string message;
string portbuffer;
string port1;
string port2;
size_t position;
size_t position2;
int port;
int portbuf;
int _portbuf;
send(_CSoc, "TYPE I\r\n", 8, 0);
Sleep(1000);
recv(_CSoc, servermessage, 10000, 0);
Sleep(1000);
Sleep(1000);
send(_CSoc, "PASV\r\n", 6, 0);
Sleep(1000);
recv(_CSoc, ftpmessage, 50, 0);
message = ftpmessage;
position = message.find("Mode");
portbuffer = message.substr(position+21);
position = portbuffer.find(",");
position2 = portbuffer.find(">");
port1 = portbuffer.substr(0, position);
port2 = portbuffer.substr(position+1, position2-1);
stringtoint(port1, portbuf);
stringtoint(port2, _portbuf);
port = portbuf*256;
port = port + _portbuf;
return port;
}
void sendFileRequest(SOCKET _FSoc){
send(_FSoc, "STOR test.txt\r\n", strlen("STOR test.txt\r\n"), 0);
Sleep(1000);
}
BOOL ftpSocket(int port){
SOCKET sock;
SOCKADDR_IN pasvserver;
char servermessage[MAX_PATH];
HANDLE HFile;
DWORD read;
char *buffer;
char filename[] = "C:\\test.txt";
int connectionerror2;
int trycount2 = 2;
sock = socket(2, SOCK_STREAM, IPPROTO_TCP);
if(sock == INVALID_SOCKET){
WSACleanup();
return 0;
}
pasvserver.sin_family = 2;
pasvserver.sin_port = htons(port);
pasvserver.sin_addr.s_addr = inet_addr("66.220.9.50"); //Once again the drivehq ftp server
connectionerror2 = connect(sock, (LPSOCKADDR)&pasvserver, sizeof(struct sockaddr));
while(connectionerror2 == SOCKET_ERROR){
connectionerror2 = connect(sock, (LPSOCKADDR)&pasvserver, sizeof(struct sockaddr));
trycount2++;
if(trycount2 = 10){
closesocket(sock);
WSACleanup();
return 0;
}
}
HFile = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
buffer = (char *)malloc(4096);
SetFilePointer(HFile, 0, NULL, FILE_BEGIN);
while(ReadFile(HFile, buffer, 4096, &read, NULL) && read > 0){
send(sock, buffer, read, 0);
}
return true;
}
int sendFile(){
FreeConsole();
WSAData WData;
SOCKET FSoc;
SOCKADDR_IN server;
int connectionerror;
int trycount = 2;
char servermessage[MAX_PATH];
int port;
WSAStartup(MAKEWORD(2,2), &WData);
FSoc = socket(2, SOCK_STREAM, IPPROTO_TCP);
if(FSoc == INVALID_SOCKET){
WSACleanup();
return 0;
}
server.sin_family = 2;
server.sin_port = htons(21);
server.sin_addr.s_addr = inet_addr("66.220.9.50"); //this is the drivehq ftp server address.
connectionerror = connect(FSoc, (LPSOCKADDR)&server, sizeof(struct sockaddr));
while(connectionerror == SOCKET_ERROR){
connectionerror = connect(FSoc, (LPSOCKADDR)&server, sizeof(struct sockaddr));
trycount++;
if(trycount = 10){
closesocket(FSoc);
WSACleanup();
return 0;
}
}
recv(FSoc, servermessage, sizeof(servermessage),0);
sendLogIn(FSoc);
Sleep(1000); //give the server and the client sometime to deal with the influx of new messages
//so that data for the ip doesnt get mixed up.
port = sendConnInfo(FSoc);
sendFileRequest(FSoc);
ftpSocket(port);
WSACleanup();
return 0;
}
int main(){
sendFile();
return 1;
}
