irom static app_action_t flash_write_verify(const string_t *src, string_t *dst)
{
char *verify_buffer = string_to_ptr(dst);
char *write_buffer = string_to_ptr(&buffer_4k);
int write_buffer_length = string_length(&buffer_4k);
if(string_size(dst) < 0x1000)
{
string_format(dst, "OTA: string verify buffer too small: %d\n", string_size(dst));
return(app_action_error);
}
if(ota_state == state_write)
{
spi_flash_read(flash_sector * 0x1000, (void *)verify_buffer, write_buffer_length);
if(ets_memcmp(write_buffer, verify_buffer, write_buffer_length))
{
spi_flash_erase_sector(flash_sector);
spi_flash_write(flash_sector * 0x1000, (void *)write_buffer, write_buffer_length);
written++;
}
else
skipped++;
}
spi_flash_read(flash_sector * 0x1000, (void *)verify_buffer, write_buffer_length);
MD5Update(&md5, verify_buffer, write_buffer_length);
if(ets_memcmp(write_buffer, verify_buffer, write_buffer_length))
{
string_copy(dst, "OTA: verify mismatch\n");
return(app_action_error);
}
flash_sector++;
received += write_buffer_length;
string_clear(&buffer_4k);
string_clear(dst);
return(app_action_normal);
}
int memcmp(const void *s1, const void *s2, size_t n) {
return ets_memcmp(s1, s2, n);
}
