vxftpclient.c

vxworks 下的网络程序源码 包括

/* vxFtpClient.c - Demo for using FTP communication between FTP client
  *                 running on a VxWorks target and  remote FTP server
  *                 running on a UNIX host 
  */
  
 /* Copyright 1984-1997 Wind River Systems, Inc. */
 
 /*
 modification history
 --------------------
 01c,06nov97,mm     added copyright.
 01b,15Sep97,mm     added <errno.h> <stdio.h> <unistd.h>
 01a,18feb94,ms     written 
 */
 #include <errno.h>
 #include <stdio.h>
 #include <unistd.h>
 #include "vxWorks.h"
 #include "ftpLib.h"
  
 #define UNIX_HOST  "192.1.200.32"    /* inet address of the remote UNIX host */
 #define USER       "john"              /* your login user name */
 #define PASSWD     "iluvwrs"           /* your login passwd    */
 #define W_DIR     "/sevana1/john/VxDemo/net/ftp/" /* cd to working directory */
 
 #define RD_CMND    "RETR %s"           /* read a remote file FTP command */
 #define QUIT_CMND  "QUIT"              /* quit FTP command */
 #define FILE       "ftpData.txt"       /* file to request - located in W_DIR */
 
 /*****************************************************************************
  * ftpReadDemo -  reads a remote file on a UNIX host using FTP commands
  * 
  *  CONFIGURATION:
  *
  *  You need to set/change the value of the UNIX_HOST, USER, PASSWD and W_DIR 
  *  constants given in this file.
  *  
  *  EXAMPLE:
  *
  *     To run ftpReadDemo, from the VxWorks shell do as follows:
  *     -> sp ftpReadDemo
  *
  *  RETURNS: OK or ERROR
  */
 
 STATUS ftpReadDemo ()
     {
     int ctrlSock;
     int dataSock;
     char buffer [512];
     int numBytes;
  
     buffer [0] = '\0';
     /* initiate a transfer via a remote FTP server to read a remote file */
     if (ftpXfer (UNIX_HOST, USER, PASSWD, "", RD_CMND, W_DIR, 
                                     FILE, &ctrlSock, &dataSock) == ERROR)
         { 
         perror ("Error in initiating a transfer via a remote FTP server");  
         return (ERROR);
         }
     /* read the remote file - for this example it is assumed that the amount
      * of buffer that needs to be read is less than 512 bytes 
      */
     while ((numBytes = read (dataSock, buffer, sizeof (buffer))) > 0)
         {
         /* Do some processing here */
         printf ("\nData read: ");
         write (STD_OUT, buffer, numBytes);
         printf ("\n");
         }
     if (numBytes < 0)
         {
         perror ("Error in reading");          /* read error */
         return (ERROR);
         }
     close (dataSock);
     /* Get an FTP command reply to see whether EOF is encountered */
     if (ftpReplyGet (ctrlSock, TRUE) != FTP_COMPLETE)
         {
         perror ("positive completion failed");
         return (ERROR);
         }
     /* Send QUIT FTP command */
     if (ftpCommand (ctrlSock, QUIT_CMND, 0, 0, 0, 0, 0, 0) != FTP_COMPLETE)
         {
         perror ("QUIT FTP command positive completion failed");
         return (ERROR);
         }
     close (ctrlSock);
     return (OK);
     }