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+.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.
+.TH "gnutls_rehandshake" 3 "3.7.9" "gnutls" "gnutls"
+.SH NAME
+gnutls_rehandshake \- API function
+.SH SYNOPSIS
+.B #include <gnutls/gnutls.h>
+.sp
+.BI "int gnutls_rehandshake(gnutls_session_t " session ");"
+.SH ARGUMENTS
+.IP "gnutls_session_t session" 12
+is a \fBgnutls_session_t\fP type.
+.SH "DESCRIPTION"
+This function can only be called in server side, and
+instructs a TLS 1.2 or earlier client to renegotiate
+parameters (perform a handshake), by sending a
+hello request message.
+
+If this function succeeds, the calling application
+should call \fBgnutls_record_recv()\fP until \fBGNUTLS_E_REHANDSHAKE\fP
+is returned to clear any pending data. If the \fBGNUTLS_E_REHANDSHAKE\fP
+error code is not seen, then the handshake request was
+not followed by the peer (the TLS protocol does not require
+the client to do, and such compliance should be handled
+by the application protocol).
+
+Once the \fBGNUTLS_E_REHANDSHAKE\fP error code is seen, the
+calling application should proceed to calling
+\fBgnutls_handshake()\fP to negotiate the new
+parameters.
+
+If the client does not wish to renegotiate parameters he
+may reply with an alert message, and in that case the return code seen
+by subsequent \fBgnutls_record_recv()\fP will be
+\fBGNUTLS_E_WARNING_ALERT_RECEIVED\fP with the specific alert being
+\fBGNUTLS_A_NO_RENEGOTIATION\fP.  A client may also choose to ignore
+this request.
+
+Under TLS 1.3 this function is equivalent to \fBgnutls_session_key_update()\fP
+with the \fBGNUTLS_KU_PEER\fP flag. In that case subsequent calls to
+\fBgnutls_record_recv()\fP will not return \fBGNUTLS_E_REHANDSHAKE\fP, and
+calls to \fBgnutls_handshake()\fP in server side are a no\-op.
+
+This function always fails with \fBGNUTLS_E_INVALID_REQUEST\fP when
+called in client side.
+.SH "RETURNS"
+\fBGNUTLS_E_SUCCESS\fP on success, otherwise a negative error code.
+.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