/* SPDX-License-Identifier: GPL-2.0+ */
  /*
   * The 'exception' command can be used for testing exception handling.
   *
   * Copyright (c) 2018, Heinrich Schuchardt <xypron.glpk@gmx.de>
   */
  
  static int do_exception(cmd_tbl_t *cmdtp, int flag, int argc,
  			char * const argv[])
  {
  	cmd_tbl_t *cp;
  
  	if (argc != 2)
  		return CMD_RET_USAGE;
  
  	/* drop sub-command parameter */
  	argc--;
  	argv++;
  
  	cp = find_cmd_tbl(argv[0], cmd_sub, ARRAY_SIZE(cmd_sub));
  
  	if (cp)
  		return cp->cmd(cmdtp, flag, argc, argv);
  
  	return CMD_RET_USAGE;
  }
  
  static int exception_complete(int argc, char * const argv[], char last_char,
  			      int maxv, char *cmdv[])
  {
  	int len = 0;
  	int i = 0;
  	cmd_tbl_t *cmdtp;
  
  	switch (argc) {
  	case 1:
  		break;
  	case 2:
  		len = strlen(argv[1]);
  		break;
  	default:
  		return 0;
  	}
  	for (cmdtp = cmd_sub; cmdtp != cmd_sub + ARRAY_SIZE(cmd_sub); cmdtp++) {
  		if (i >= maxv - 1)
  			return i;
  		if (!strncmp(argv[1], cmdtp->name, len))
  			cmdv[i++] = cmdtp->name;
  	}
  	cmdv[i] = NULL;
  	return i;
  }
  
  U_BOOT_CMD_COMPLETE(
  	exception, 2, 0, do_exception,
  	"Forces an exception to occur",
  	exception_help_text, exception_complete
  );