view/trunk/ftp_quit.c

/*
  liboftp: this is an FTP library to simplify the work to a Developer
  who want to work with FTP servers (RFC 959).

  Copyright (c) 2009 hirohito higashi. All rights reserved.
  This file is distributed under BSD license.
*/


/***** Feature test switches ************************************************/
/***** System headers *******************************************************/
#include <unistd.h>


/***** Local headers ********************************************************/
#include "liboftp.h"
#include "sub.h"


/***** Constat values *******************************************************/
/***** Macros ***************************************************************/
/***** Typedefs *************************************************************/
/***** Function prototypes **************************************************/
/***** Local variables ******************************************************/
/***** Global variables *****************************************************/
/***** Signal catching functions ********************************************/
/***** Local functions ******************************************************/
/***** Global functions *****************************************************/

/****************************************************************************/
/*! QUIT������������
 *
 *@param        ftp     LIBOFTP���������������������
 *@retval       int     ������������������
 *@note
 */
int ftp_quit( LIBOFTP *ftp )
{
    char str1[] = "QUIT\r\n";
    int res;

    if( ftp->socket < 0 ) return LIBOFTP_ERROR;

    /*
     * send QUIT command
     */
    if( ftp_send_command( ftp, str1 ) < 0 ) {
        DEBUGPRINT1( "command sending error. %s\n", str1 );
        res = LIBOFTP_ERROR_OS;
        goto CLOSE;
    }

    res = ftp_receive_response( ftp, ftp->error_message, sizeof(ftp->error_message)-1 );
    if( res == 221 ) {                                          /* 221: Service closing control connection. */
        res = LIBOFTP_NOERROR;
    } else {
        DEBUGPRINT1( "command response error. %d\n", res );
        if( res >= 0 ) res = LIBOFTP_ERROR_PROTOCOL;
    }

    /*
     * close socket.
     */
CLOSE:
    close( ftp->socket );
    ftp->socket = -1;

    return res;
}