diff options
Diffstat (limited to 'rpc_server.c')
| -rw-r--r-- | rpc_server.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/rpc_server.c b/rpc_server.c index b363f23..9598413 100644 --- a/rpc_server.c +++ b/rpc_server.c @@ -170,10 +170,16 @@ static hal_error_t hash_get_digest_algorithm_id(const uint8_t **iptr, const uint if (nargs(1) + pad(len_max) > (uint32_t)(olimit - *optr)) return HAL_ERROR_RPC_PACKET_OVERFLOW; - /* get the data directly into the output buffer */ - if ((err = hal_rpc_hash_get_digest_algorithm_id(alg, *optr + nargs(1), &len, (size_t)len_max)) == HAL_OK) { - check(hal_xdr_encode_int(optr, olimit, len)); - *optr += pad(len); + if (len_max == 0) { + if ((err = hal_rpc_hash_get_digest_algorithm_id(alg, NULL, &len, 0)) == HAL_OK) + check(hal_xdr_encode_int(optr, olimit, len)); + } + else { + /* get the data directly into the output buffer */ + if ((err = hal_rpc_hash_get_digest_algorithm_id(alg, *optr + nargs(1), &len, (size_t)len_max)) == HAL_OK) { + check(hal_xdr_encode_int(optr, olimit, len)); + *optr += pad(len); + } } return err; @@ -209,6 +215,8 @@ static hal_error_t hash_initialize(const uint8_t **iptr, const uint8_t * const i check(hal_xdr_decode_int(iptr, ilimit, &session.handle)); check(hal_xdr_decode_int(iptr, ilimit, &alg)); check(hal_xdr_decode_variable_opaque_ptr(iptr, ilimit, &key, &key_len)); + if (key_len == 0) + key = NULL; check(hal_rpc_hash_initialize(client, session, &hash, (hal_digest_algorithm_t)alg, key, (size_t)key_len)); |