NVRAM_SPACE
if (nvram_len >= NVRAM_SPACE) {
nvram_len, NVRAM_SPACE);
nvram_len = NVRAM_SPACE - 1;
static char nvram_buf[NVRAM_SPACE];
if (copy_size >= NVRAM_SPACE) {
copy_size, NVRAM_SPACE - 1);
copy_size = NVRAM_SPACE - 1;
nvram_buf[NVRAM_SPACE - 1] = '\0';