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.\" ========================================================================
.\"
.IX Title "SSL_SESSION_SET1_ID 3"
.TH SSL_SESSION_SET1_ID 3 "2023-09-11" "1.1.1w" "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_SESSION_get_id, SSL_SESSION_set1_id \&\- get and set the SSL session ID
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/ssl.h>
\&
\& const unsigned char *SSL_SESSION_get_id(const SSL_SESSION *s,
\&                                         unsigned int *len)
\& int SSL_SESSION_set1_id(SSL_SESSION *s, const unsigned char *sid,
\&                         unsigned int sid_len);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBSSL_SESSION_get_id()\fR returns a pointer to the internal session id value for the
session \fBs\fR. The length of the id in bytes is stored in \fB*len\fR. The length may
be 0. The caller should not free the returned pointer directly.
.PP
\&\fBSSL_SESSION_set1_id()\fR sets the session \s-1ID\s0 for the \fBssl\fR \s-1SSL/TLS\s0 session
to \fBsid\fR of length \fBsid_len\fR.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBSSL_SESSION_get_id()\fR returns a pointer to the session id value.
\&\fBSSL_SESSION_set1_id()\fR returns 1 for success and 0 for failure, for example
if the supplied session \s-1ID\s0 length exceeds \fB\s-1SSL_MAX_SSL_SESSION_ID_LENGTH\s0\fR.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBssl\fR\|(7)
.SH "HISTORY"
.IX Header "HISTORY"
The \fBSSL_SESSION_set1_id()\fR function was added in OpenSSL 1.1.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2015\-2016 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>.