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SSL_CTX_SET_MIN_PROTO_VERSION(3)    OpenSSL   SSL_CTX_SET_MIN_PROTO_VERSION(3)

NAME
       SSL_CTX_set_min_proto_version, SSL_CTX_set_max_proto_version,
       SSL_CTX_get_min_proto_version, SSL_CTX_get_max_proto_version,
       SSL_set_min_proto_version, SSL_set_max_proto_version,
       SSL_get_min_proto_version, SSL_get_max_proto_version - Get and set
       minimum and maximum supported protocol version

SYNOPSIS
	#include <openssl/ssl.h>

	int SSL_CTX_set_min_proto_version(SSL_CTX *ctx,	int version);
	int SSL_CTX_set_max_proto_version(SSL_CTX *ctx,	int version);
	int SSL_CTX_get_min_proto_version(SSL_CTX *ctx);
	int SSL_CTX_get_max_proto_version(SSL_CTX *ctx);

	int SSL_set_min_proto_version(SSL *ssl,	int version);
	int SSL_set_max_proto_version(SSL *ssl,	int version);
	int SSL_get_min_proto_version(SSL *ssl);
	int SSL_get_max_proto_version(SSL *ssl);

DESCRIPTION
       The functions get or set	the minimum and	maximum	supported protocol
       versions	for the	ctx or ssl.  This works	in combination with the
       options set via SSL_CTX_set_options(3) that also	make it	possible to
       disable specific	protocol versions.  Use	these functions	instead	of
       disabling specific protocol versions.

       Setting the minimum or maximum version to 0, will enable	protocol
       versions	down to	the lowest version, or up to the highest version
       supported by the	library, respectively.

       Getters return 0	in case	ctx or ssl have	been configured	to
       automatically use the lowest or highest version supported by the
       library.

       Currently supported versions are	SSL3_VERSION, TLS1_VERSION,
       TLS1_1_VERSION, TLS1_2_VERSION, TLS1_3_VERSION for TLS and
       DTLS1_VERSION, DTLS1_2_VERSION for DTLS.

RETURN VALUES
       These setter functions return 1 on success and 0	on failure. The	getter
       functions return	the configured version or 0 for	auto-configuration of
       lowest or highest protocol, respectively.

NOTES
       All these functions are implemented using macros.

SEE ALSO
       SSL_CTX_set_options(3), SSL_CONF_cmd(3)

HISTORY
       The setter functions were added in OpenSSL 1.1.0. The getter functions
       were added in OpenSSL 1.1.1.

COPYRIGHT
       Copyright 2016-2019 The OpenSSL Project Authors.	All Rights Reserved.

       Licensed	under the OpenSSL license (the "License").  You	may not	use
       this file except	in compliance with the License.	 You can obtain	a copy
       in the file LICENSE in the source distribution or at
       <https://www.openssl.org/source/license.html>.

1.1.1d				  2019-09-10  SSL_CTX_SET_MIN_PROTO_VERSION(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | NOTES | SEE ALSO | HISTORY | COPYRIGHT

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