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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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13
src/flash/nor/stm32lx.c
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@@ -870,7 +870,7 @@ static int stm32lx_auto_probe(struct flash_bank *bank)
}
/* This method must return a string displaying information about the bank */
static int stm32lx_get_info(struct flash_bank *bank, char *buf, int buf_size)
static int stm32lx_get_info(struct flash_bank *bank, struct command_invocation *cmd)
{
struct stm32lx_flash_bank *stm32lx_info = bank->driver_priv;
const struct stm32lx_part_info *info = &stm32lx_info->part_info;
@@ -880,8 +880,7 @@ static int stm32lx_get_info(struct flash_bank *bank, char *buf, int buf_size)
if (!stm32lx_info->probed) {
int retval = stm32lx_probe(bank);
if (retval != ERROR_OK) {
snprintf(buf, buf_size,
"Unable to find bank information.");
command_print_sameline(cmd, "Unable to find bank information.");
return retval;
}
}
@@ -891,13 +890,9 @@ static int stm32lx_get_info(struct flash_bank *bank, char *buf, int buf_size)
rev_str = info->revs[i].str;
if (rev_str != NULL) {
snprintf(buf, buf_size,
"%s - Rev: %s",
info->device_str, rev_str);
command_print_sameline(cmd, "%s - Rev: %s", info->device_str, rev_str);
} else {
snprintf(buf, buf_size,
"%s - Rev: unknown (0x%04x)",
info->device_str, rev_id);
command_print_sameline(cmd, "%s - Rev: unknown (0x%04x)", info->device_str, rev_id);
}
return ERROR_OK;