auracaster/sw_openocd
3
0
Fork 0
forked from auracaster/openocd
Code Pull Requests Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

33
src/flash/nor/at91sam7.c
View File

@@ -978,23 +978,17 @@ static int at91sam7_probe(struct flash_bank *bank)
return ERROR_OK;
}
static int get_at91sam7_info(struct flash_bank *bank, char *buf, int buf_size)
static int get_at91sam7_info(struct flash_bank *bank, struct command_invocation *cmd)
{
int printed;
struct at91sam7_flash_bank *at91sam7_info = bank->driver_priv;
if (at91sam7_info->cidr == 0)
return ERROR_FLASH_BANK_NOT_PROBED;
printed = snprintf(buf, buf_size,
"\n at91sam7 driver information: Chip is %s\n",
command_print_sameline(cmd, "\n at91sam7 driver information: Chip is %s\n",
at91sam7_info->target_name);
buf += printed;
buf_size -= printed;
printed = snprintf(buf,
buf_size,
command_print_sameline(cmd,
" Cidr: 0x%8.8" PRIx32 " | Arch: 0x%4.4x | Eproc: %s | Version: 0x%3.3x | "
"Flashsize: 0x%8.8" PRIx32 "\n",
at91sam7_info->cidr,
@@ -1003,31 +997,20 @@ static int get_at91sam7_info(struct flash_bank *bank, char *buf, int buf_size)
at91sam7_info->cidr_version,
bank->size);
buf += printed;
buf_size -= printed;
printed = snprintf(buf, buf_size,
" Master clock (estimated): %u KHz | External clock: %u KHz\n",
command_print_sameline(cmd,
" Master clock (estimated): %u kHz | External clock: %u kHz\n",
(unsigned)(at91sam7_info->mck_freq / 1000),
(unsigned)(at91sam7_info->ext_freq / 1000));
buf += printed;
buf_size -= printed;
printed = snprintf(buf,
buf_size,
command_print_sameline(cmd,
" Pagesize: %i bytes | Lockbits(%u): %i 0x%4.4x | Pages in lock region: %i\n",
at91sam7_info->pagesize,
bank->num_sectors,
at91sam7_info->num_lockbits_on,
at91sam7_info->lockbits,
at91sam7_info->pages_per_sector*at91sam7_info->num_lockbits_on);
at91sam7_info->pages_per_sector * at91sam7_info->num_lockbits_on);
buf += printed;
buf_size -= printed;
snprintf(buf, buf_size,
" Securitybit: %i | Nvmbits(%i): %i 0x%1.1x\n",
command_print_sameline(cmd, " Securitybit: %i | Nvmbits(%i): %i 0x%1.1x\n",
at91sam7_info->securitybit, at91sam7_info->num_nvmbits,
at91sam7_info->num_nvmbits_on, at91sam7_info->nvmbits);