/*
   * cmd_strings.c - just like `strings` command
   *
   * Copyright (c) 2008 Analog Devices Inc.
   *
   * Licensed under the GPL-2 or later.
   */
  
  #include <config.h>
  #include <common.h>
  #include <command.h>
  
  static char *start_addr, *last_addr;
  
  int do_strings(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  {
  	if (argc == 1)
  		return CMD_RET_USAGE;
  
  	if ((flag & CMD_FLAG_REPEAT) == 0) {
  		start_addr = (char *)simple_strtoul(argv[1], NULL, 16);
  		if (argc > 2)
  			last_addr = (char *)simple_strtoul(argv[2], NULL, 16);
  		else
  			last_addr = (char *)-1;
  	}
  
  	char *addr = start_addr;
  	do {
  		puts(addr);
  		puts("
  ");
  		addr += strlen(addr) + 1;
  	} while (addr[0] && addr < last_addr);
  
  	last_addr = addr + (last_addr - start_addr);
  	start_addr = addr;
  
  	return 0;
  }
  
  U_BOOT_CMD(
  	strings, 3, 1, do_strings,
  	"display strings",
  	"<addr> [byte count]
  "
  	"    - display strings at <addr> for at least [byte count] or first double NUL"
  );