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Diffstat (limited to 'secure/lib/libcrypto/man/SSL_get_version.3')
| -rw-r--r-- | secure/lib/libcrypto/man/SSL_get_version.3 | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/secure/lib/libcrypto/man/SSL_get_version.3 b/secure/lib/libcrypto/man/SSL_get_version.3 new file mode 100644 index 0000000000000..415bd277852de --- /dev/null +++ b/secure/lib/libcrypto/man/SSL_get_version.3 @@ -0,0 +1,217 @@ +.\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. 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Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +SSL_client_version, SSL_get_version, SSL_is_dtls, SSL_version \- get the protocol information of a connection +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +.Vb 1 +\& #include <openssl/ssl.h> +\& +\& int SSL_client_version(const SSL *s); +\& +\& const char *SSL_get_version(const SSL *ssl); +\& +\& int SSL_is_dtls(const SSL *ssl); +\& +\& int SSL_version(const SSL *s); +.Ve +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +\&\fISSL_client_version()\fR returns the numeric protocol version advertised by the +client in the legacy_version field of the ClientHello when initiating the +connection. Note that, for \s-1TLS,\s0 this value will never indicate a version greater +than TLSv1.2 even if TLSv1.3 is subsequently negotiated. \fISSL_get_version()\fR +returns the name of the protocol used for the connection. \fISSL_version()\fR returns +the numeric protocol version used for the connection. They should only be called +after the initial handshake has been completed. Prior to that the results +returned from these functions may be unreliable. +.PP +\&\fISSL_is_dtls()\fR returns one if the connection is using \s-1DTLS,\s0 zero if not. +.SH "RETURN VALUES" +.IX Header "RETURN VALUES" +\&\fISSL_get_version()\fR returns one of the following strings: +.IP "SSLv3" 4 +.IX Item "SSLv3" +The connection uses the SSLv3 protocol. +.IP "TLSv1" 4 +.IX Item "TLSv1" +The connection uses the TLSv1.0 protocol. +.IP "TLSv1.1" 4 +.IX Item "TLSv1.1" +The connection uses the TLSv1.1 protocol. +.IP "TLSv1.2" 4 +.IX Item "TLSv1.2" +The connection uses the TLSv1.2 protocol. +.IP "TLSv1.3" 4 +.IX Item "TLSv1.3" +The connection uses the TLSv1.3 protocol. +.IP "unknown" 4 +.IX Item "unknown" +This indicates an unknown protocol version. +.PP +\&\fISSL_version()\fR and \fISSL_client_version()\fR return an integer which could include any +of the following: +.IP "\s-1SSL3_VERSION\s0" 4 +.IX Item "SSL3_VERSION" +The connection uses the SSLv3 protocol. +.IP "\s-1TLS1_VERSION\s0" 4 +.IX Item "TLS1_VERSION" +The connection uses the TLSv1.0 protocol. +.IP "\s-1TLS1_1_VERSION\s0" 4 +.IX Item "TLS1_1_VERSION" +The connection uses the TLSv1.1 protocol. +.IP "\s-1TLS1_2_VERSION\s0" 4 +.IX Item "TLS1_2_VERSION" +The connection uses the TLSv1.2 protocol. +.IP "\s-1TLS1_3_VERSION\s0" 4 +.IX Item "TLS1_3_VERSION" +The connection uses the TLSv1.3 protocol (never returned for +\&\fISSL_client_version()\fR). +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fIssl\fR\|(7) +.SH "HISTORY" +.IX Header "HISTORY" +\&\fISSL_is_dtls()\fR was added in OpenSSL 1.1.0. +.SH "COPYRIGHT" +.IX Header "COPYRIGHT" +Copyright 2001\-2018 The OpenSSL Project Authors. All Rights Reserved. +.PP +Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use +this file except in compliance with the License. You can obtain a copy +in the file \s-1LICENSE\s0 in the source distribution or at +<https://www.openssl.org/source/license.html>. |