build: fix clear sizes and index type

Author: jgriffiths

src/psbt.c

@@ -1196,7 +1196,7 @@ static int psbt_init(uint32_t version, size_t num_inputs, size_t num_outputs,
  wally_free(psbt_out->inputs);
  wally_free(psbt_out->outputs);
  wally_map_clear(&psbt_out->unknowns);
- wally_clear(psbt_out, sizeof(psbt_out));
+ wally_clear(psbt_out, sizeof(*psbt_out));
  return ret != WALLY_OK ? ret : WALLY_ENOMEM;
  }
 
@@ -3961,7 +3961,7 @@ static int psbt_build_input(const struct wally_psbt_input *src,
  BUILD_ITEM(inflation_keys_rangeproof, PSET_IN_ISSUANCE_INFLATION_KEYS_RANGEPROOF);
  struct wally_map_item issuance_amount_item = { NULL, 0, issuance_amount, sizeof(issuance_amount) };
  struct wally_map_item inflation_keys_item = { NULL, 0, inflation_keys, sizeof(inflation_keys) };
- int src_index = src->index;
+ uint32_t src_index = src->index;
 
  if (src->issuance_amount || src->inflation_keys || issuance_amount_commitment || inflation_keys_commitment)
  src_index |= WALLY_TX_ISSUANCE_FLAG;

src/sign.c

@@ -359,7 +359,7 @@ int wally_ec_sig_from_bytes_aux(const unsigned char *priv_key, size_t priv_key_l
  ret = WALLY_EINVAL;
  else if (!secp256k1_schnorrsig_sign32(ctx, bytes_out, bytes, &keypair, aux_rand))
  ret = WALLY_ERROR;
- wally_clear(&keypair, sizeof(&keypair));
+ wally_clear(&keypair, sizeof(keypair));
  return ret;
  } else {
  unsigned char extra_entropy[32] = {0}, *entropy_p = (unsigned char *)aux_rand;