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/* Copyright (C) 2018 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*!
* \file
*
* \addtogroup crypto
*
* \brief Cryptographic backend initialization.
*
* For most cryptographic operations, the library requires global
* initialization. Also, if the application creates a subprocess, the
* library has to be reinitialized in the child process after \c fork().
*
* ~~~~~ {.c}
* int main(void)
* {
* int exit_code = 0;
*
* dnssec_crypto_init();
*
* pid_t child_pid = fork();
* if (child_pid < 0) {
* perror("fork");
* exit_code = 1;
* } else if (child_pid == 0) {
* dnssec_crypto_reinit();
* exit_code = child();
* } else {
* exit_code = parent();
* }
*
* dnssec_crypto_cleanup();
* return exit_code;
* }
* ~~~~~
*
* @{
*/
#pragma once
/*!
* Initialize cryptographic backend.
*/
void dnssec_crypto_init(void);
/*!
* Reinitialize cryptographic backend.
*
* Must be called after fork() by the child.
*/
void dnssec_crypto_reinit(void);
/*!
* Deinitialize cryptographic backend.
*
* Should be called when terminating the application.
*/
void dnssec_crypto_cleanup(void);
/*! @} */
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