smbclient and clitar changes for proper tar handling

[Richard Sharpe]

Hi folks,

I have had to modify dir_action and do_dir and do_long_dir in client.c to
include the ability to process directories as well as files in directories.
I have set the processing of directories off in all existing calls in
client.c.

This is needed for the following reason:

  When clitar.c writes a directory path to the tar file, it needs to write all
  the directory entries along the way as separate tar headers (type = '5') so
  we can get the creation dates in the tar file, so we can create the 
  directories on restore with the correct creation dates! So there :-)

  Thus, clitar.c requests that directories be handed to the function (fn) as 
  well as the contents of directories, while all existing calls to do_dir
  simply say no to directories (TM :-) 

  So, clitar now writes directory headers into the tar file.

Now that I have clitar seemingly writing correct tar files, I am going to
work more on the restore part. This involves limited changes, including
making a setatr call on each directory created to set the creation date. 

Can anyone comment on whether or not SMB/Samba/NT/etc allow the creation
dates of a directory to be modified?

Also, I will be restructuring the code in do_tarput so that it handles
blocking properly. Something along the lines of:

   int nextblock( ...)
   {
       bufferp += TBLOCK;
       if (bufferp >= tarbuf + endorbuffer) {
         gets next block from the file/tape and sticks it in the buffer
         passed as arguments (a little like GNUtar);
         bufferp = tarbuf;
       }
       
   }

   int do_tarput( ...)
   {

      tarbuf = malloc(a shit load of space)
      bufferp = tarbuf + endofbuffer;
      while (true) {

        if (nextblock( ...) < 0){
          complain(short tar file, bummer);
          return 0;
        }
        switch (readtarheader( ...)) {

          CASE file: 
            process_file();
            break;

          CASE longlink: 
            process_longlink();
            break;

          CASE dir:
            process_dir();
            break;
        }
      }

   }

Any comments?


Regards
-------
Richard Sharpe, sharpe at ns.aus.com, NIC-Handle:RJS96
NS Computer Software and Services P/L, 
Ph: +61-8-8281-0063, FAX: +61-8-8250-2080, 
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