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/*
* hack-ancient-openssl.h - hack to run on ancient versions of OpenSSL
* Copyright the NTPsec project contributors
* SPDX-License-Identifier: BSD-2-Clause
*
* This is needed only on ancient systems that
* are using OpenSSL older than OpenSSL 1.1.0.
*
* From the man page:
* The EVP_MD_CTX_create() and EVP_MD_CTX_destroy() functions were renamed
* to EVP_MD_CTX_new() and EVP_MD_CTX_free() in OpenSSL 1.1.0,
* respectively.
*
* See:
* https://lists.ntpsec.org/pipermail/devel/2024-December/010502.html
* https://lists.ntpsec.org/pipermail/devel/2024-June/010451.html
*/
#ifndef GUARD_HACK_ANCIENT_OPENSSL_H
#define GUARD_HACK_ANCIENT_OPENSSL_H
#include "config.h"
#ifndef HAVE_EVP_MD_CTX_NEW
#include <openssl/evp.h>
static inline EVP_MD_CTX *
EVP_MD_CTX_new(void) {
(void) EVP_MD_CTX_new;
return EVP_MD_CTX_create();
}
// Note the difference in the return types.
// The return value for EVP_MD_CTX_reset isn't documented in the manpage,
// but since other int-returning functions return 0 for failure and 1 for
// success, we assume the same here.
static inline int
EVP_MD_CTX_reset(EVP_MD_CTX *ctx) {
(void) EVP_MD_CTX_reset;
EVP_MD_CTX_init(ctx);
return 1;
}
static inline void
EVP_MD_CTX_free(EVP_MD_CTX *ctx) {
(void) EVP_MD_CTX_free;
EVP_MD_CTX_destroy(ctx);
}
#endif /* !HAVE_EVP_MD_CTX_NEW */
#endif /* GUARD_HACK_ANCIENT_OPENSSL_H */
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