select_contract.h (2107B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2022 Taler Systems SA 4 5 TALER is free software; you can redistribute it and/or modify it under the 6 terms of the GNU General Public License as published by the Free Software 7 Foundation; either version 3, or (at your option) any later version. 8 9 TALER is distributed in the hope that it will be useful, but WITHOUT ANY 10 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR 11 A PARTICULAR PURPOSE. See the GNU General Public License for more details. 12 13 You should have received a copy of the GNU General Public License along with 14 TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> 15 */ 16 /** 17 * @file src/include/exchange-database/select_contract.h 18 * @brief implementation of the select_contract function for Postgres 19 * @author Christian Grothoff 20 */ 21 #ifndef EXCHANGE_DATABASE_SELECT_CONTRACT_H 22 #define EXCHANGE_DATABASE_SELECT_CONTRACT_H 23 24 #include "taler/taler_json_lib.h" 25 #include "exchangedb_lib.h" 26 27 28 /** 29 * Function called to retrieve an encrypted contract. 30 * 31 * @param pg the database context 32 * @param purse_pub key to lookup the contract by 33 * @param[out] pub_ckey set to the ephemeral DH used to encrypt the contract 34 * @param[out] econtract_sig set to the signature over the encrypted contract 35 * @param[out] econtract_size set to the number of bytes in @a econtract 36 * @param[out] econtract set to the encrypted contract on success, to be freed by the caller 37 * @return transaction status code 38 */ 39 enum GNUNET_DB_QueryStatus 40 TALER_EXCHANGEDB_select_contract (struct TALER_EXCHANGEDB_PostgresContext *pg, 41 const struct TALER_ContractDiffiePublicP * 42 pub_ckey, 43 struct TALER_PurseContractPublicKeyP * 44 purse_pub, 45 struct TALER_PurseContractSignatureP * 46 econtract_sig, 47 size_t *econtract_size, 48 void **econtract); 49 50 #endif