.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.
.TH "gnutls_session_get_id" 3 "3.6.2" "gnutls" "gnutls"
.SH NAME
gnutls_session_get_id \- API function
.SH SYNOPSIS
.B #include <gnutls/gnutls.h>
.sp
.BI "int gnutls_session_get_id(gnutls_session_t " session ", void * " session_id ", size_t * " session_id_size ");"
.SH ARGUMENTS
.IP "gnutls_session_t session" 12
is a \fBgnutls_session_t\fP type.
.IP "void * session_id" 12
is a pointer to space to hold the session id.
.IP "size_t * session_id_size" 12
initially should contain the maximum  \fIsession_id\fP size and will be updated.
.SH "DESCRIPTION"
Returns the current session ID. This can be used if you want to
check if the next session you tried to resume was actually
resumed.  That is because resumed sessions share the same session ID
with the original session.

The session ID is selected by the server, that identify the
current session.  In all supported TLS protocols, the session id
is less than \fBGNUTLS_MAX_SESSION_ID_SIZE\fP.
.SH "RETURNS"
On success, \fBGNUTLS_E_SUCCESS\fP (0) is returned, otherwise
an error code is returned.
.SH "REPORTING BUGS"
Report bugs to <bugs@gnutls.org>.
.br
Home page: http://www.gnutls.org

.SH COPYRIGHT
Copyright \(co 2001-2018 Free Software Foundation, Inc., and others.
.br
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
.SH "SEE ALSO"
The full documentation for
.B gnutls
is maintained as a Texinfo manual.
If the /usr/share/doc/gnutls/
directory does not contain the HTML form visit
.B
.IP http://www.gnutls.org/manual/
.PP