secure_erase
opts->secure_erase = 1;
if (opts->secure_erase)
if (opts->secure_erase) {
if ((error = secure_erase(opts->dev, blocks * blksz, blksz)) != 0) {
int secure_erase; /* XXX: default to 1! */
int secure_erase(const char *dev, disksz_t bytes, size_t blksz);
opts->secure_erase = i;
opts->secure_erase = 0;