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flash/nor: improved API of flash_driver.info & fixed buffer overruns

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1) The API of "info" callback in "struct flash_driver" has been
improved. Fixed buffers for strings

2) Removed the calls to snprintf() from the flash_driver.info
implementations. Many of them were used in an unsafe manner
(buffer overruns were possible).

Change-Id: I42ab8a8018d01f9af43c5ba49f650c3cb5d31dcb
Signed-off-by: Jan Matyas <matyas@codasip.com>
Reviewed-on: http://openocd.zylin.com/6182
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
This commit is contained in:
Jan Matyas
2021-04-23 10:47:17 +02:00
committed by Antonio Borneo
parent f2958fc04b
commit 64c2e03b23
51 changed files with 290 additions and 442 deletions
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14
src/flash/nor/tms470.c
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@@ -1118,26 +1118,20 @@ static int tms470_protect_check(struct flash_bank *bank)
/* ---------------------------------------------------------------------- */
static int get_tms470_info(struct flash_bank *bank, char *buf, int buf_size)
static int get_tms470_info(struct flash_bank *bank, struct command_invocation *cmd)
{
int used = 0;
struct tms470_flash_bank *tms470_info = bank->driver_priv;
if (!tms470_info->device_ident_reg)
tms470_read_part_info(bank);
if (!tms470_info->device_ident_reg) {
(void)snprintf(buf, buf_size, "Cannot identify target as a TMS470\n");
command_print_sameline(cmd, "Cannot identify target as a TMS470\n");
return ERROR_FLASH_OPERATION_FAILED;
}
used =
snprintf(buf, buf_size, "\ntms470 information: Chip is %s\n",
tms470_info->part_name);
buf += used;
buf_size -= used;
snprintf(buf, buf_size, "Flash protection level 2 is %s\n",
command_print_sameline(cmd, "\ntms470 information: Chip is %s\n", tms470_info->part_name);
command_print_sameline(cmd, "Flash protection level 2 is %s\n",
tms470_check_flash_unlocked(bank->target) == ERROR_OK ? "disabled" : "enabled");
return ERROR_OK;