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1 #ifndef HEADER_CURL_SOCKS_H
2 #define HEADER_CURL_SOCKS_H
3 /***************************************************************************
4  *                                  _   _ ____  _
5  *  Project                     ___| | | |  _ \| |
6  *                             / __| | | | |_) | |
7  *                            | (__| |_| |  _ <| |___
8  *                             \___|\___/|_| \_\_____|
9  *
10  * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
11  *
12  * This software is licensed as described in the file COPYING, which
13  * you should have received as part of this distribution. The terms
14  * are also available at https://curl.haxx.se/docs/copyright.html.
15  *
16  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17  * copies of the Software, and permit persons to whom the Software is
18  * furnished to do so, under the terms of the COPYING file.
19  *
20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21  * KIND, either express or implied.
22  *
23  ***************************************************************************/
24 
25 #include "curl_setup.h"
26 
27 #ifdef CURL_DISABLE_PROXY
28 #define Curl_SOCKS4(a,b,c,d,e) CURLE_NOT_BUILT_IN
29 #define Curl_SOCKS5(a,b,c,d,e,f) CURLE_NOT_BUILT_IN
30 #define Curl_SOCKS_getsock(x,y,z) 0
31 #else
32 /*
33  * Helper read-from-socket functions. Does the same as Curl_read() but it
34  * blocks until all bytes amount of buffersize will be read. No more, no less.
35  *
36  * This is STUPID BLOCKING behavior
37  */
38 int Curl_blockread_all(struct connectdata *conn,
39                        curl_socket_t sockfd,
40                        char *buf,
41                        ssize_t buffersize,
42                        ssize_t *n);
43 
44 int Curl_SOCKS_getsock(struct connectdata *conn,
45                        curl_socket_t *sock,
46                        int sockindex);
47 /*
48  * This function logs in to a SOCKS4(a) proxy and sends the specifics to the
49  * final destination server.
50  */
51 CURLproxycode Curl_SOCKS4(const char *proxy_name,
52                           const char *hostname,
53                           int remote_port,
54                           int sockindex,
55                           struct connectdata *conn,
56                           bool *done);
57 
58 /*
59  * This function logs in to a SOCKS5 proxy and sends the specifics to the
60  * final destination server.
61  */
62 CURLproxycode Curl_SOCKS5(const char *proxy_name,
63                           const char *proxy_password,
64                           const char *hostname,
65                           int remote_port,
66                           int sockindex,
67                           struct connectdata *conn,
68                           bool *done);
69 
70 #if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
71 /*
72  * This function handles the SOCKS5 GSS-API negotiation and initialisation
73  */
74 CURLcode Curl_SOCKS5_gssapi_negotiate(int sockindex,
75                                       struct connectdata *conn);
76 #endif
77 
78 #endif /* CURL_DISABLE_PROXY */
79 
80 #endif  /* HEADER_CURL_SOCKS_H */
81