1 /***************************************************************************
2  *                                  _   _ ____  _
3  *  Project                     ___| | | |  _ \| |
4  *                             / __| | | | |_) | |
5  *                            | (__| |_| |  _ <| |___
6  *                             \___|\___/|_| \_\_____|
7  *
8  * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
9  *
10  * This software is licensed as described in the file COPYING, which
11  * you should have received as part of this distribution. The terms
12  * are also available at https://curl.haxx.se/docs/copyright.html.
13  *
14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15  * copies of the Software, and permit persons to whom the Software is
16  * furnished to do so, under the terms of the COPYING file.
17  *
18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19  * KIND, either express or implied.
20  *
21  ***************************************************************************/
22 
23 #include "curl_setup.h"
24 
25 /***********************************************************************
26  * Only for builds using synchronous name resolves
27  **********************************************************************/
28 #ifdef CURLRES_SYNCH
29 
30 #ifdef HAVE_NETINET_IN_H
31 #include <netinet/in.h>
32 #endif
33 #ifdef HAVE_NETDB_H
34 #include <netdb.h>
35 #endif
36 #ifdef HAVE_ARPA_INET_H
37 #include <arpa/inet.h>
38 #endif
39 #ifdef __VMS
40 #include <in.h>
41 #include <inet.h>
42 #endif
43 
44 #ifdef HAVE_PROCESS_H
45 #include <process.h>
46 #endif
47 
48 #include "urldata.h"
49 #include "sendf.h"
50 #include "hostip.h"
51 #include "hash.h"
52 #include "share.h"
53 #include "strerror.h"
54 #include "url.h"
55 #include "curl_memory.h"
56 /* The last #include file should be: */
57 #include "memdebug.h"
58 
59 /*
60  * Function provided by the resolver backend to set DNS servers to use.
61  */
62 CURLcode Curl_set_dns_servers(struct Curl_easy *data,
63                               char *servers)
64 {
65   (void)data;
66   (void)servers;
67   return CURLE_NOT_BUILT_IN;
68 
69 }
70 
71 /*
72  * Function provided by the resolver backend to set
73  * outgoing interface to use for DNS requests
74  */
75 CURLcode Curl_set_dns_interface(struct Curl_easy *data,
76                                 const char *interf)
77 {
78   (void)data;
79   (void)interf;
80   return CURLE_NOT_BUILT_IN;
81 }
82 
83 /*
84  * Function provided by the resolver backend to set
85  * local IPv4 address to use as source address for DNS requests
86  */
87 CURLcode Curl_set_dns_local_ip4(struct Curl_easy *data,
88                                 const char *local_ip4)
89 {
90   (void)data;
91   (void)local_ip4;
92   return CURLE_NOT_BUILT_IN;
93 }
94 
95 /*
96  * Function provided by the resolver backend to set
97  * local IPv6 address to use as source address for DNS requests
98  */
99 CURLcode Curl_set_dns_local_ip6(struct Curl_easy *data,
100                                 const char *local_ip6)
101 {
102   (void)data;
103   (void)local_ip6;
104   return CURLE_NOT_BUILT_IN;
105 }
106 
107 #endif /* truly sync */
108