Re: gftp

Ich erinner mich noch, das ich die ptym_open() funktion als komisch
empfand da es iirc zumindest unter bsd einen "simplereren" weg gaebe an
ein freies [pt]ty Paar zu kommen:

int
ptym_open (char *pts_name)
{
  int fd;
[...]
#else /* !SYSV */

  char *pos1, *pos2;
  
  strcpy (pts_name, "/dev/ptyXY");
  for (pos1 = "pqrstuvwxyzPQRST"; *pos1 != '\0'; pos1++)
    {
      pts_name[8] = *pos1;
      for (pos2 = "0123456789abcdef"; *pos2 != '\0'; pos2++)
        {
          pts_name[9] = *pos2;
          if ((fd = open (pts_name, O_RDWR)) < 0)
            continue;
          pts_name[5] = 't';
          return (fd);
        }
    }
  return (-1);
  
#endif
[...]
}

Ich hatte damals mit folgendem Codeblock aus der sshv2.c von gftp
"rumgespielt" aber hab es auch nicht zum laufen bekommen.

  exepath = g_strdup_printf ("echo -n xsftp ; %s%csftp-server", p1, p2);
  args = make_ssh_exec_args (request, exepath, sshv2_use_sftp_subsys,
port);

  if (ssh_use_askpass || sshv2_use_sftp_subsys)
    {
      fdm = fds = 0;
      if (socketpair (AF_LOCAL, SOCK_STREAM, 0, s) < 0)
        {
          request->logging_function (gftp_logging_error,
request->user_data,
                                     _("Cannot create a socket pair:
%s\n"),
                                     g_strerror (errno));
          return (-2);
        }
    }
  else
    {
      s[0] = s[1] = 0;
      if ((fdm = ptym_open (pts_name)) < 0)
        {
          request->logging_function (gftp_logging_error,
request->user_data,
                                _("Cannot open master pty %s: %s\n"),
pts_name,
                                g_strerror (errno));
          return (-2);
        }
    }

  if ((child = fork ()) == 0)
    {
      setsid ();
      if (ssh_use_askpass || sshv2_use_sftp_subsys)
        {
          close (s[0]);
          fds = s[1];
        }
      else
        {
          if ((fds = ptys_open (fdm, pts_name)) < 0)
            {
              printf ("Cannot open slave pts %s: %s\n", pts_name,
                      g_strerror (errno));
              return (-1);
            }
          close (fdm);
        }

      tty_raw (fds);

usw usf...

-- 
 Oliver Lehmann
        @home: lehmann(at)ans-netz.de
      @office: oliver.lehmann(at)mgi.de
         @www: http://www.pofo.de/  |  http://wishlist.ans-netz.de/
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