Function hsm_secret_arg

lightningd/options.c:1301–1342

}

char *hsm_secret_arg(const tal_t *ctx,
		     const char *arg,
		     const struct hsm_secret **hsm_secret)
{
	char *codex32_fail;
	struct codex32 *codex32;
	struct hsm_secret *hsms = tal(tmpctx, struct hsm_secret);

	/* We accept hex, or codex32.  hex is very very very unlikely to
	 * give a valid codex32, so try that first */
	codex32 = codex32_decode(tmpctx, "cl", arg, &codex32_fail);
	if (codex32) {
		hsms->type = HSM_SECRET_PLAIN;
		hsms->secret_data = tal_steal(hsms, codex32->payload);
		if (codex32->threshold != 0
		    || codex32->type != CODEX32_ENCODING_SECRET) {
			return "This is only one share of codex32!";
		}
		if (tal_count(hsms->secret_data) != 32)
			return "Invalid length: must be 32 bytes";
	/* Not codex32, was it hex? */
	} else if ((hsms->secret_data = tal_hexdata(hsms, arg, strlen(arg))) != NULL) {
		hsms->type = HSM_SECRET_PLAIN;
		if (tal_count(hsms->secret_data) != 32)
			return "Invalid length: must be 32 bytes";
	/* Not hex, is is a mnemonic? */
	} else {
		enum hsm_secret_error err = validate_mnemonic(arg);
		if (err != HSM_SECRET_OK) {
			/* If it looks kinda like a codex32, give that error. */
			if (strstarts(arg, "cl"))
				return codex32_fail;
			else
				return "Not a valid mnemonic, hex, or codex32 string";
		}
		hsms->type = HSM_SECRET_MNEMONIC_NO_PASS;
		hsms->mnemonic = tal_strdup(hsms, arg);
	}

	*hsm_secret = tal_steal(ctx, hsms);
	return NULL;
}

static char *opt_set_hsm_secret(const char *arg, struct lightningd *ld)
{