ftp源代码.txt

基于UNIX的FTP源代码

#include <stdio.h>;
  #include <net/libftp.h>;

  #define NORMAL  0
  #define ABNORMAL        1
  #define ON              1
  #define OFF             0

  main (argc, argv)
          int     argc;
          char    *argv[];
  {
          FTPINFO ftpinfo;       
          void    usage(), check_n_close();
          char    *progname;
          char    *host;
         
          progname = (char *) argv[0];
          if ( argc < 2 )
                  (void) usage(progname);

          host = argv[1];
          ftpinfo.debug = ON;
          ftpinfo.transf_calc = ON;
          ftpinfo.linger = OFF;

          /*
           * connect to peer at remote host.
           */
          if (ftp_prconnect ( &ftpinfo, host ) < 0) {
                  printf("error: ftp_prconnect failed.\n";      
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * send user name to the remote server.
           */
          if (ftp_user( &ftpinfo, "bank" ) < 0) {
                  printf("error: ftp_user failed.\n";
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * send user password to the remote server.
           */
          if (ftp_passwd ( &ftpinfo, "" ) < 0) {
                  printf("error: ftp_passwd failed.\n";
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }      
                 
          /*
           * set the idle time for this connection.
           */
          if (ftp_idle ( &ftpinfo, "7200" ) < 0) {
                  printf("error: ftp_idle failed.\n";
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }
         
          /*
           * do a 'cd' on the remote ftp server.
           */
          if (ftp_chdir( &ftpinfo, "winnt" ) < 0) {
                  printf("error: ftp_chdir failed.\n";
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * do a 'pwd' on the remote ftp server.
           */
          if (ftp_pwd ( &ftpinfo ) < 0) {
                  printf("error: ftp_pwd failed.\n";
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * set transfer mode to ascii.
           */
          if (ftp_ascii ( &ftpinfo ) < 0) {
                  printf("error: ftp_ascii failed.\n";
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * set transfer mode to binary.
           */
          if (ftp_binary ( &ftpinfo ) < 0) {
                  printf("error: ftp_binary failed.\n";
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * set transfer mode back to ascii - using ftp_settype.
           */
          if (ftp_settype ( &ftpinfo, ASCII ) < 0) {
                  printf("error: ftp_settype failed in ascii mode.\n";
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * set transfer mode back to binary - using ftp_settype.
           */
          if (ftp_settype ( &ftpinfo, BINARY ) < 0) {
                  printf("error: ftp_settype failed in binary mode.\n";
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * make a directory under /tmp on the server.
           */
          if (ftp_mkdir ( &ftpinfo, "prem" ) < 0) {
                  printf("error: ftp_mkdir failed.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }
                 
          /*
           * change the mode of the directory created above.
           */
          if (ftp_site ( &ftpinfo, "chmod 775 prem" ) < 0) {
                  printf("error: ftp_site failed.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * remove the directory created above.
           */
          if (ftp_rmdir ( &ftpinfo, "prem" ) < 0) {
                  printf("error: ftp_rmdir failed.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * quit the FTP session decently.
           */
          if (ftp_bye( &ftpinfo ) < 0) {
                  printf("error: ftp_bye failed.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * use ftp_login to login into the remote ftp server and quit.
           */
          if (ftp_login ( &ftpinfo, host, "bank", "", NULL ) < 0) {
                  printf("error: ftp_login failed.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * do a 'put' to the remote host.
           */
          if (ftp_putfile ( &ftpinfo, "/tmp/passwd", "c:/passwd" ) < 0) {
                  printf("error: ftp_putfile failed.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }
          else {
                  printf("transfer speed: \n");
                  printf("\t\tbytes transferred = %ld\n",
                                  ftpinfo.speed.size_bytes);
                  printf("\t\ttime taken        = %.2g seconds\n",
                                  ftpinfo.speed.seconds);                        
                  printf("\t\trate              = %.2g Kbytes/s\n",
                                  ftpinfo.speed.kbs);
          }

          /*
           * set transfer mode back to ascii - using ftp_settype.
           */
          if (ftp_settype ( &ftpinfo, ASCII ) < 0) {
                  printf("error: ftp_settype failed in ascii mode.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * do a 'get' from the remote host.
           */
          if (ftp_getfile ( &ftpinfo, "/tmp/passwd","c:/passwd" )< 0){
                  printf("error: ftp_getfile failed.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }
          else {
                  printf("transfer speed: \n");
                  printf("\t\tbytes transferred = %ld\n",
                                  ftpinfo.speed.size_bytes);
                  printf("\t\ttime taken       = %.2g seconds\n",
                                  ftpinfo.speed.seconds);                        
                  printf("\t\trate             = %.2g Kbytes/s\n",
                                  ftpinfo.speed.kbs);
          }

          /*
           * list /tmp on remote host to file /tmp/test.
           */
          if (ftp_dir ( &ftpinfo, "/tmp", "/tmp/test" ) < 0) {
                  printf("error: ftp_dir failed.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * list /tmp on remote host to stdout.
           */
          if (ftp_dir ( &ftpinfo, "/tmp", NULL ) < 0) {
                  printf("error: ftp_dir failed to write to stdout.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * delete the file on the remote host.
           */
          if (ftp_del ( &ftpinfo, "/tmp/asciifile" ) < 0) {
                  printf("error: ftp_del failed.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * quit the FTP sessions decently.
           */
          if (ftp_bye( &ftpinfo ) < 0) {
                  printf("error: ftp_bye failed.\n");
                  (void) check_n_close ( &ftpinfo, ABNORMAL );
          }

          /*
           * we're done with our job...so exit the program gracefully.
           */
          (void) check_n_close ( &ftpinfo, NORMAL );     

  }


  void
  usage(progname)
          char *progname;
  {
          printf("usage: %s <remhost>;\n", progname);
          exit (1);
  }

  void
  check_n_close ( ftpinfo, status )
          FTPINFO *ftpinfo;
          int     status;
  {
          if (ftpinfo ->; sockfd >;= 0)
                  close (ftpinfo ->; sockfd);
          if (status == ABNORMAL)
                  printf("error: %s\n", ftpinfo ->; ftp_msg);
          else
                  printf("success: %s\n", ftpinfo ->; ftp_msg);

          printf("final reply from server: %d\n", ftpinfo ->; reply);
          fflush ( stdout );
          exit (status);
  }