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Rev 421 Rev 533
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 * Type CD drive: to display the current directory in the specified drive.
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 * Type CD drive: to display the current directory in the specified drive.
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 * Type CD without parameters to display the current drive and directory.
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 * Type CD without parameters to display the current drive and directory.
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 */
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 */
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static int cmd_cd(struct cmd_funcparam *p) {
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static enum cmd_result cmd_cd(struct cmd_funcparam *p) {
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  char *buffptr = p->BUFFER;
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  char *buffptr = p->BUFFER;
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  /* CD /? */
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  /* CD /? */
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  if (cmd_ishlp(p)) {
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  if (cmd_ishlp(p)) {
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    outputnl("Displays the name of or changes the current directory.");
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    outputnl("Displays the name of or changes the current directory.");
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    outputnl("");
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    outputnl("");
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    outputnl(".. Specifies that you want to change to the parent directory.");
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    outputnl(".. Specifies that you want to change to the parent directory.");
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    outputnl("");
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    outputnl("");
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    outputnl("Type CD drive: to display the current directory in the specified drive.");
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    outputnl("Type CD drive: to display the current directory in the specified drive.");
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    outputnl("Type CD without parameters to display the current drive and directory.");
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    outputnl("Type CD without parameters to display the current drive and directory.");
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    return(-1);
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    return(CMD_OK);
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  }
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  }
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  /* one argument max */
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  /* one argument max */
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  if (p->argc > 1) {
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  if (p->argc > 1) {
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    outputnl("Too many parameters");
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    outputnl("Too many parameters");
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    return(-1);
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    return(CMD_FAIL);
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  }
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  }
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  /* no argument? display current drive and dir ("CWD") */
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  /* no argument? display current drive and dir ("CWD") */
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  if (p->argc == 0) {
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  if (p->argc == 0) {
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    curpathfordrv(buffptr, 0);
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    curpathfordrv(buffptr, 0);
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    outputnl(buffptr);
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    outputnl(buffptr);
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    return(-1);
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    return(CMD_OK);
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  }
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  }
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  /* argument can be either a drive (D:) or a path */
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  /* argument can be either a drive (D:) or a path */
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  if (p->argc == 1) {
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  if (p->argc == 1) {
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    const char *arg = p->argv[0];
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    const char *arg = p->argv[0];
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        pop dx
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        pop dx
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      }
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      }
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    }
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    }
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    if (err != 0) {
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    if (err != 0) {
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      outputnl(doserr(err));
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      outputnl(doserr(err));
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      return(CMD_FAIL);
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    }
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    }
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  }
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  }
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  return(-1);
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  return(CMD_OK);
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}
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}