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+.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.
+.TH "gnutls_session_get_data2" 3 "3.7.9" "gnutls" "gnutls"
+.SH NAME
+gnutls_session_get_data2 \- API function
+.SH SYNOPSIS
+.B #include <gnutls/gnutls.h>
+.sp
+.BI "int gnutls_session_get_data2(gnutls_session_t " session ", gnutls_datum_t * " data ");"
+.SH ARGUMENTS
+.IP "gnutls_session_t session" 12
+is a \fBgnutls_session_t\fP type.
+.IP "gnutls_datum_t * data" 12
+is a pointer to a datum that will hold the session.
+.SH "DESCRIPTION"
+Returns necessary parameters to support resumption. The client
+should call this function and store the returned session data. A session
+can be resumed later by calling \fBgnutls_session_set_data()\fP with the returned
+data. Note that under TLS 1.3, it is recommended for clients to use
+session parameters only once, to prevent passive\-observers from correlating
+the different connections.
+
+The returned  \fIdata\fP are allocated and must be released using \fBgnutls_free()\fP.
+
+This function will fail if called prior to handshake completion. In
+case of false start TLS, the handshake completes only after data have
+been successfully received from the peer.
+
+Under TLS1.3 session resumption is possible only after a session ticket
+is received by the client. To ensure that such a ticket has been received use
+\fBgnutls_session_get_flags()\fP and check for flag \fBGNUTLS_SFLAGS_SESSION_TICKET\fP;
+if this flag is not set, this function will wait for a new ticket within
+an estimated roundtrip, and if not received will return dummy data which
+cannot lead to resumption.
+
+To get notified when new tickets are received by the server
+use \fBgnutls_handshake_set_hook_function()\fP to wait for \fBGNUTLS_HANDSHAKE_NEW_SESSION_TICKET\fP
+messages. Each call of \fBgnutls_session_get_data2()\fP after a ticket is
+received, will return session resumption data corresponding to the last
+received ticket.
+
+Note that this function under TLS1.3 requires a callback to be set with
+\fBgnutls_transport_set_pull_timeout_function()\fP for successful operation. There
+was a bug before 3.6.10 which could make this function fail if that callback
+was not set. On later versions if not set, the function will return a successful
+error code, but will return dummy data that cannot lead to a resumption.
+.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: https://www.gnutls.org
+
+.SH COPYRIGHT
+Copyright \(co 2001- 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 https://www.gnutls.org/manual/
+.PP