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/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2023 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* This is an open source non-commercial project. Dear PVS-Studio, please check it.
* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
*/
#include <config.h>
#if defined(HAVE_OPENSSL) && !defined(HAVE_SSL_READ_EX)
# include <sys/types.h>
# if defined(HAVE_WOLFSSL)
# include <wolfssl/options.h>
# endif
# include <openssl/ssl.h>
# include <sudo_compat.h>
# include <sudo_ssl_compat.h>
/*
* Emulate SSL_read_ex() using SSL_read().
* Unlike the real SSL_read_ex(), this can return -1 on error.
*/
int
SSL_read_ex(SSL *ssl, void *buf, size_t num, size_t *readbytes)
{
int nr = SSL_read(ssl, buf, (int)num);
if (nr <= 0)
return nr;
*readbytes = (size_t)nr;
return 1;
}
/*
* Emulate SSL_write_ex() using SSL_write().
* Unlike the real SSL_write_ex(), this can return -1 on error.
*/
int
SSL_write_ex(SSL *ssl, const void *buf, size_t num, size_t *written)
{
int nw = SSL_write(ssl, buf, (int)num);
if (nw <= 0)
return nw;
*written = (size_t)nw;
return 1;
}
#endif /* HAVE_OPENSSL && !HAVE_SSL_READ_EX */
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