51 lines
1.4 KiB
Plaintext
51 lines
1.4 KiB
Plaintext
=pod
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=head1 NAME
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SSL_CTX_set_min_proto_version, SSL_CTX_set_max_proto_version,
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SSL_set_min_proto_version, SSL_set_max_proto_version - Set minimum
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and maximum supported protocol version
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=head1 SYNOPSIS
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#include <openssl/ssl.h>
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int SSL_CTX_set_min_proto_version(SSL_CTX *ctx, int version);
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int SSL_CTX_set_max_proto_version(SSL_CTX *ctx, int version);
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int SSL_set_min_proto_version(SSL *ssl, int version);
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int SSL_set_max_proto_version(SSL *ssl, int version);
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=head1 DESCRIPTION
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The functions set the minimum and maximum supported portocol versions
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for the B<ctx> or B<ssl>.
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This works in combination with the options set via SSL_CTX_set_options()
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that also make it possible to disable specific protocol versions.
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Use these functions instead of disabling specific protocol versions.
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Setting the minimum or maximum version to 0, will enable protocol
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versions down to the lowest version, or up to the highest version
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supported by the library, respectively.
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Currently supported versions are B<SSL3_VERSION>, B<TLS1_VERSION>,
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B<TLS1_1_VERSION>, B<TLS1_2_VERSION> for TLS and B<DTLS1_VERSION>,
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B<DTLS1_2_VERSION> for DTLS.
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=head1 RETURN VALUES
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Both functions return 1 on success and 0 on failure.
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=head1 NOTES
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All these functions are implemented using macros.
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=head1 HISTORY
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The functions were added in OpenSSL 1.1.0
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=head1 SEE ALSO
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L<SSL_CTX_set_options(3)>, L<SSL_CONF_cmd(3)>
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=cut
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