aboutsummaryrefslogtreecommitdiff
path: root/secure/lib/libcrypto/man/man3/SSL_get_current_cipher.3
diff options
context:
space:
mode:
Diffstat (limited to 'secure/lib/libcrypto/man/man3/SSL_get_current_cipher.3')
-rw-r--r--secure/lib/libcrypto/man/man3/SSL_get_current_cipher.3124
1 files changed, 124 insertions, 0 deletions
diff --git a/secure/lib/libcrypto/man/man3/SSL_get_current_cipher.3 b/secure/lib/libcrypto/man/man3/SSL_get_current_cipher.3
new file mode 100644
index 000000000000..a153710a430c
--- /dev/null
+++ b/secure/lib/libcrypto/man/man3/SSL_get_current_cipher.3
@@ -0,0 +1,124 @@
+.\" -*- mode: troff; coding: utf-8 -*-
+.\" Automatically generated by Pod::Man 5.0102 (Pod::Simple 3.45)
+.\"
+.\" 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
+..
+.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
+.ie n \{\
+. ds C` ""
+. ds C' ""
+'br\}
+.el\{\
+. ds C`
+. ds C'
+'br\}
+.\"
+.\" Escape single quotes in literal strings from groff's Unicode transform.
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\"
+.\" If the F register is >0, we'll generate index entries on stderr for
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
+.\" entries marked with X<> in POD. Of course, you'll have to process the
+.\" output yourself in some meaningful fashion.
+.\"
+.\" Avoid warning from groff about undefined register 'F'.
+.de IX
+..
+.nr rF 0
+.if \n(.g .if rF .nr rF 1
+.if (\n(rF:(\n(.g==0)) \{\
+. if \nF \{\
+. de IX
+. tm Index:\\$1\t\\n%\t"\\$2"
+..
+. if !\nF==2 \{\
+. nr % 0
+. nr F 2
+. \}
+. \}
+.\}
+.rr rF
+.\" ========================================================================
+.\"
+.IX Title "SSL_GET_CURRENT_CIPHER 3ossl"
+.TH SSL_GET_CURRENT_CIPHER 3ossl 2025-09-30 3.5.4 OpenSSL
+.\" For nroff, turn off justification. Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH NAME
+SSL_get_current_cipher, SSL_get_cipher_name, SSL_get_cipher,
+SSL_get_cipher_bits, SSL_get_cipher_version,
+SSL_get_pending_cipher \- get SSL_CIPHER of a connection
+.SH SYNOPSIS
+.IX Header "SYNOPSIS"
+.Vb 1
+\& #include <openssl/ssl.h>
+\&
+\& const SSL_CIPHER *SSL_get_current_cipher(const SSL *ssl);
+\& const SSL_CIPHER *SSL_get_pending_cipher(const SSL *ssl);
+\&
+\& const char *SSL_get_cipher_name(const SSL *s);
+\& const char *SSL_get_cipher(const SSL *s);
+\& int SSL_get_cipher_bits(const SSL *s, int *np);
+\& const char *SSL_get_cipher_version(const SSL *s);
+.Ve
+.SH DESCRIPTION
+.IX Header "DESCRIPTION"
+\&\fBSSL_get_current_cipher()\fR returns a pointer to an SSL_CIPHER object containing
+the description of the actually used cipher of a connection established with
+the \fBssl\fR object. \fBssl\fR \fBMUST NOT\fR be NULL.
+See \fBSSL_CIPHER_get_name\fR\|(3) for more details.
+.PP
+\&\fBSSL_get_cipher_name()\fR obtains the
+name of the currently used cipher.
+\&\fBSSL_get_cipher()\fR is identical to \fBSSL_get_cipher_name()\fR.
+\&\fBSSL_get_cipher_bits()\fR is a
+macro to obtain the number of secret/algorithm bits used and
+\&\fBSSL_get_cipher_version()\fR returns the protocol name.
+.PP
+\&\fBSSL_get_pending_cipher()\fR returns a pointer to an SSL_CIPHER object containing
+the description of the cipher (if any) that has been negotiated for future use
+on the connection established with the \fBssl\fR object, but is not yet in use.
+This may be the case during handshake processing, when control flow can be
+returned to the application via any of several callback methods. The internal
+sequencing of handshake processing and callback invocation is not guaranteed
+to be stable from release to release, and at present only the callback set
+by \fBSSL_CTX_set_alpn_select_cb()\fR is guaranteed to have a non-NULL return value.
+Other callbacks may be added to this list over time.
+.SH "RETURN VALUES"
+.IX Header "RETURN VALUES"
+\&\fBSSL_get_current_cipher()\fR returns the cipher actually used, or NULL if
+no session has been established.
+.PP
+\&\fBSSL_get_pending_cipher()\fR returns the cipher to be used at the next change
+of cipher suite, or NULL if no such cipher is known.
+.SH NOTES
+.IX Header "NOTES"
+SSL_get_cipher, SSL_get_cipher_bits, SSL_get_cipher_version, and
+SSL_get_cipher_name are implemented as macros.
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+\&\fBssl\fR\|(7), \fBSSL_CIPHER_get_name\fR\|(3)
+.SH COPYRIGHT
+.IX Header "COPYRIGHT"
+Copyright 2000\-2018 The OpenSSL Project Authors. All Rights Reserved.
+.PP
+Licensed under the Apache License 2.0 (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>.