1*2e192b24SSimon Glass /*
2*2e192b24SSimon Glass * cmd_strings.c - just like `strings` command
3*2e192b24SSimon Glass *
4*2e192b24SSimon Glass * Copyright (c) 2008 Analog Devices Inc.
5*2e192b24SSimon Glass *
6*2e192b24SSimon Glass * Licensed under the GPL-2 or later.
7*2e192b24SSimon Glass */
8*2e192b24SSimon Glass
9*2e192b24SSimon Glass #include <config.h>
10*2e192b24SSimon Glass #include <common.h>
11*2e192b24SSimon Glass #include <command.h>
12*2e192b24SSimon Glass
13*2e192b24SSimon Glass static char *start_addr, *last_addr;
14*2e192b24SSimon Glass
do_strings(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])15*2e192b24SSimon Glass int do_strings(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
16*2e192b24SSimon Glass {
17*2e192b24SSimon Glass if (argc == 1)
18*2e192b24SSimon Glass return CMD_RET_USAGE;
19*2e192b24SSimon Glass
20*2e192b24SSimon Glass if ((flag & CMD_FLAG_REPEAT) == 0) {
21*2e192b24SSimon Glass start_addr = (char *)simple_strtoul(argv[1], NULL, 16);
22*2e192b24SSimon Glass if (argc > 2)
23*2e192b24SSimon Glass last_addr = (char *)simple_strtoul(argv[2], NULL, 16);
24*2e192b24SSimon Glass else
25*2e192b24SSimon Glass last_addr = (char *)-1;
26*2e192b24SSimon Glass }
27*2e192b24SSimon Glass
28*2e192b24SSimon Glass char *addr = start_addr;
29*2e192b24SSimon Glass do {
30*2e192b24SSimon Glass puts(addr);
31*2e192b24SSimon Glass puts("\n");
32*2e192b24SSimon Glass addr += strlen(addr) + 1;
33*2e192b24SSimon Glass } while (addr[0] && addr < last_addr);
34*2e192b24SSimon Glass
35*2e192b24SSimon Glass last_addr = addr + (last_addr - start_addr);
36*2e192b24SSimon Glass start_addr = addr;
37*2e192b24SSimon Glass
38*2e192b24SSimon Glass return 0;
39*2e192b24SSimon Glass }
40*2e192b24SSimon Glass
41*2e192b24SSimon Glass U_BOOT_CMD(
42*2e192b24SSimon Glass strings, 3, 1, do_strings,
43*2e192b24SSimon Glass "display strings",
44*2e192b24SSimon Glass "<addr> [byte count]\n"
45*2e192b24SSimon Glass " - display strings at <addr> for at least [byte count] or first double NUL"
46*2e192b24SSimon Glass );
47