[people/ms/u-boot.git] / cmd / strings.c

/*
 * 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("\n");
		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]\n"
	"    - display strings at <addr> for at least [byte count] or first double NUL"
);
Commit	Line	Data
30942b18 MF	1	/*
	2	* cmd_strings.c - just like `strings` command
	3	*
	4	* Copyright (c) 2008 Analog Devices Inc.
	5	*
	6	* Licensed under the GPL-2 or later.
	7	*/
	8
	9	#include <config.h>
	10	#include <common.h>
	11	#include <command.h>
	12
30942b18 MF	13	static char start_addr, last_addr;
30942b18 MF	14
54841ab5	15	int do_strings(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
30942b18	16	{
47e26b1b	17	if (argc == 1)
4c12eeb8	18	return CMD_RET_USAGE;
30942b18 MF	19
	20	if ((flag & CMD_FLAG_REPEAT) == 0) {
	21	start_addr = (char *)simple_strtoul(argv[1], NULL, 16);
	22	if (argc > 2)
	23	last_addr = (char *)simple_strtoul(argv[2], NULL, 16);
	24	else
	25	last_addr = (char *)-1;
	26	}
	27
	28	char *addr = start_addr;
	29	do {
774ce720 MF	30	puts(addr);
774ce720 MF	31	puts("\n");
30942b18 MF	32	addr += strlen(addr) + 1;
	33	} while (addr[0] && addr < last_addr);
	34
	35	last_addr = addr + (last_addr - start_addr);
	36	start_addr = addr;
	37
	38	return 0;
	39	}
	40
388a29d0 FM	41	U_BOOT_CMD(
388a29d0 FM	42	strings, 3, 1, do_strings,
2fb2604d	43	"display strings",
30942b18	44	"<addr> [byte count]\n"
a89c33db WD	45	" - display strings at <addr> for at least [byte count] or first double NUL"
a89c33db WD	46	);