mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-04 05:50:17 +00:00
a89c33db96
Many of the help messages were not really helpful; for example, many commands that take no arguments would not print a correct synopsis line, but "No additional help available." which is not exactly wrong, but not helpful either. Commit ``Make "usage" messages more helpful.'' changed this partially. But it also became clear that lots of "Usage" and "Help" messages (fields "usage" and "help" in struct cmd_tbl_s respective) were actually redundant. This patch cleans this up - for example: Before: => help dtt dtt - Digital Thermometer and Thermostat Usage: dtt - Read temperature from digital thermometer and thermostat. After: => help dtt dtt - Read temperature from Digital Thermometer and Thermostat Usage: dtt Signed-off-by: Wolfgang Denk <wd@denx.de>
48 lines
949 B
C
48 lines
949 B
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 *argv[])
|
|
{
|
|
if (argc == 1) {
|
|
cmd_usage(cmdtp);
|
|
return 1;
|
|
}
|
|
|
|
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"
|
|
);
|