LibVNCServer/LibVNCClient
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tls.h
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1 #ifndef TLS_H
2 #define TLS_H
3 
4 /*
5  * Copyright (C) 2009 Vic Lee.
6  *
7  * This is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This software is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this software; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
20  * USA.
21  */
22 
23 /* Handle Anonymous TLS Authentication (18) with the server.
24  * After authentication, client->tlsSession will be set.
25  */
27 
28 /* Handle VeNCrypt Authentication (19) with the server.
29  * The callback function GetX509Credential will be called.
30  * After authentication, client->tlsSession will be set.
31  */
33 
34 /* Read desired bytes from TLS session.
35  * It's a wrapper function over gnutls_record_recv() and return values
36  * are same as read(), that is, >0 for actual bytes read, 0 for EOF,
37  * or EAGAIN, EINTR.
38  * This should be a non-blocking call. Blocking is handled in sockets.c.
39  */
40 int ReadFromTLS(rfbClient* client, char *out, unsigned int n);
41 
42 /* Write desired bytes to TLS session.
43  * It's a wrapper function over gnutls_record_send() and it will be
44  * blocking call, until all bytes are written or error returned.
45  */
46 int WriteToTLS(rfbClient* client, char *buf, unsigned int n);
47 
48 /* Free TLS resources */
49 void FreeTLS(rfbClient* client);
50 
51 #endif /* TLS_H */