ftp.rar_FTP unix_c ftp_ftp c linux_linux_unix c

/*///////////////////////////////////////////////////////////////////// FTPclient.cpp (c) GDI 1999 V1.0.0 (10/4/99) Phil Anderson. philip@gd-ind.com Simple FTP client functionality. If you have any problems with it, please tell me about them (or better still e-mail me the fixed code). Please feel free to use this code however you wish, although if you make changes please put your name in the source & comment what you did. Nothing awesome going on here at all (all sockets are used in synchronous blocking mode), but it does the following things WinInet doesn't seem to: * Supports loads of different firewalls (I think, I don't have access to all types so they haven't all been fully tested yet) * Allows you to execute any command on the FTP server * Adds 10K to your app install rather than 1Mb #;-) Functions return TRUE if everything went OK, FALSE if there was an, error. A message describing the outcome (normally the one returned from the server) will be in m_retmsg on return from the function. There are a few error msgs in the app's string table that you'll need to paste into your app, along with this file & FTPclient.h If you created your app without checking the "Use Windows Sockets" checkbox in AppWizard, you'll need to add the following bit of code to you app's InitInstance() if(!AfxSocketInit()) { AfxMessageBox("Could not initialize Windows Sockets!"); return FALSE; } To use: 1/ Create an object of CFTPclient. 2/ Use LogOnToServer() to connect to the server. Any arguments not used (e.g. if you're not using a firewall), pass an empty string or zero for numeric args. You must pass a server port number, use the FTP default of 21 if you don't know what it is. 3/ Use MoveFile() to upload/download a file, 1st arg is local file path, 2nd arg is remote file path, 3rd arg is TRUE for a PASV connection (required by some firewalls), FALSE otherwise, 4th arg is TRUE to upload, FALSE to download file. MoveFile only works in synchronous mode (ie the function will not return 'till the transfer is finished). File transfers are always of type BINARY. 4/ You can use FTPcommand() to execute FTP commands (eg FTPcommand("CWD /home/mydir") to change directory on the server), note that this function will return FALSE unless the server response is a 200 series code. This should work fine for most FTP commands, otherwise you can use WriteStr() and ReadStr() to send commands & interpret the response yourself. Use LogOffServer() to disconnect when done. /////////////////////////////////////////////////////////////////////*/ #define _FTP_API_ //#define NOOP_RESET_BUFFER #include "FTPclient.h" #include <fstream> #include <string> using namespace std; #ifdef NOOP_RESET_BUFFER void delay(int us) { #if defined (WIN32) Sleep(us/1000); #elif defined (__unix) struct timeval tv; int ret; while(TRUE) { tv.tv_sec = us / 1000000; tv.tv_usec = us % 1000000; ret=select( 0, 0, 0, 0, &tv ); if(ret < 0) { if( GetErrNo() == SOCK_EINTR ) { us = us/2; if( us >= 50000 ) continue; } } break; } #endif } #endif //NOOP_RESET_BUFFER CFTPclient::CFTPclient() { m_retmsg = new string; m_Ctrlsok= 0; ICP_INIT(2); } //constructor_method CFTPclient::~CFTPclient() { delete m_retmsg; CloseControlChannel(); ICP_CLOSE(); } //destructor_method // function to connect & log on to FTP server BOOL CFTPclient::LogOnToServer( char const * hostname, int hostport, char const * username, char const * password, char const * acct, char const * fwhost, char const * fwusername, char const * fwpassword, int fwport, int logontype ) { int port,logonpoint=0; const int LO=-2, ER=-1; string buf; char temp[256]; const int NUMLOGIN=9;// currently supports 9 different login sequences memset(temp,0,sizeof(temp)); int logonseq[NUMLOGIN][100] = { // this array stores all of the logon sequences for the various firewalls // in blocks of 3 nums. 1st num is command to send, 2nd num is next point in logon sequence array // if 200 series response is rec'd from server as the result of the command, 3rd num is next // point in logon sequence if 300 series rec'd {0,LO,3, 1,LO,6, 2,LO,ER}, // no firewall {3,6,3, 4,6,ER, 5,ER,9, 0,LO,12, 1,LO,15, 2,LO,ER}, // SITE hostname {3,6,3, 4,6,ER, 6,LO,9, 1,LO,12, 2,LO,ER}, // USER after logon {7,3,3, 0,LO,6, 1,LO,9, 2,LO,ER}, //proxy OPEN {3,6,3, 4,6,ER, 0,LO,9, 1,LO,12, 2,LO,ER}, // Transparent {6,LO,3, 1,LO,6, 2,LO,ER}, // USER with no logon {8,6,3, 4,6,ER, 0,LO,9, 1,LO,12, 2,LO,ER}, //USER fireID@remotehost {9,ER,3, 1,LO,6, 2,LO,ER}, //USER remoteID@remotehost fireID {10,LO,3, 11,LO,6, 2,LO,ER} // USER remoteID@fireID@remotehost }; if(logontype<0||logontype>=NUMLOGIN) return FALSE; // illegal connect code // are we connecting directly to the host (logon type 0) or via a firewall? (logon type>0) if(!logontype) { strcpy(temp,hostname); port=hostport; } else { strcpy(temp,fwhost); port=fwport; } char portstr[16]; memset(portstr,0,sizeof(portstr)); sprintf(portstr,":%d",hostport); if(hostport!=21) { memset(temp,0,sizeof(temp)); sprintf(temp,"%s %s",hostname,portstr); // add port to hostname (only if port is not 21) } if(!OpenControlChannel(temp,port)) return false; if(!FTPcommand("")) return FALSE; // get initial connect msg off server // go through appropriate logon procedure for(;;) { memset(temp,0,sizeof(temp)); switch(logonseq[logontype][logonpoint]) { case 0: sprintf(temp,"USER %s\r\n",username); break; case 1: sprintf(temp,"PASS %s\r\n",password); break; case 2: sprintf(temp,"ACCT %s\r\n",acct); break; case 3: sprintf(temp,"USER %s\r\n",fwusername); break; case 4: sprintf(temp,"PASS %s\r\n",fwpassword); break; case 5: sprintf(temp,"SITE %s\r\n",hostname); break; case 6: sprintf(temp,"USER %s @ %s\r\n",username,hostname); break; case 7: sprintf(temp,"OPEN %s\r\n",hostname); break; case 8: sprintf(temp,"USER %s @ %s\r\n",fwusername,hostname); break; case 9: sprintf(temp,"USER %s @ %s %s\r\n",username,hostname,fwusername); break; case 10: sprintf(temp,"USER %s @ %s @ %s\r\n",username,fwusername,hostname); break; case 11: sprintf(temp,"PASS %s @ %s\r\n",password,fwpassword); break; } // send command, get response string temp1 = temp; if(!WriteStr(temp1)) return FALSE; if(!ReadStr()) return FALSE; // only these responses are valid if(m_fc!=2&&m_fc!=3) return FALSE; logonpoint=logonseq[logontype][logonpoint+m_fc-1]; //get next command from array switch(logonpoint) { case ER: // ER means summat has gone wrong *m_retmsg = Msg_Err_Logon; return FALSE; case LO: // LO means we're fully logged on return TRUE; } } } //LogOnToServer_method // function to log off & close connection to FTP server void CFTPclient::LogOffServer() { WriteStr("QUIT"); CloseControlChannel(); } //LogOffServer_method // function to upload/download files BOOL CFTPclient::TransmitFile( char const * remotefile, char const * localfile, BOOL bPasv, BOOL bDownload ) { string lhost,temp,rhost,substring; int srvport,i,j; fstream datafile; ofstream recvfile; ifstream sendfile; int sockSrvr = 0; int datachannel = -1; int num,numread,numsent,numsend; const int BUFSIZE=10240; char cbuf[BUFSIZE]; int ret; int local_save_file_open_flag = 0;//下载文件打开标志 //get filename string fileName = bDownload ? remotefile : localfile; string::size_type leftSlashPos = fileName.rfind( "/" ); string::size_type rightSlashPos = fileName.rfind( "\\" ); string::size_type dirPos = max( static_cast<int>(leftSlashPos), static_cast<int>(rightSlashPos) ); if( dirPos != string::npos ) fileName.erase( 0, dirPos + 1 ); // open local file *m_retmsg = Msg_Err_FileOpen; if( !bDownload ) sendfile.open(localfile,ios::in