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1 #ifndef HEADER_CURL_ADDRINFO_H
2 #define HEADER_CURL_ADDRINFO_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.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 HAVE_NETINET_IN_H
28 #  include <netinet/in.h>
29 #endif
30 #ifdef HAVE_NETDB_H
31 #  include <netdb.h>
32 #endif
33 #ifdef HAVE_ARPA_INET_H
34 #  include <arpa/inet.h>
35 #endif
36 
37 #ifdef __VMS
38 #  include <in.h>
39 #  include <inet.h>
40 #  include <stdlib.h>
41 #endif
42 
43 /*
44  * Curl_addrinfo is our internal struct definition that we use to allow
45  * consistent internal handling of this data. We use this even when the
46  * system provides an addrinfo structure definition. And we use this for
47  * all sorts of IPv4 and IPV6 builds.
48  */
49 
50 struct Curl_addrinfo {
51   int                   ai_flags;
52   int                   ai_family;
53   int                   ai_socktype;
54   int                   ai_protocol;
55   curl_socklen_t        ai_addrlen;   /* Follow rfc3493 struct addrinfo */
56   char                 *ai_canonname;
57   struct sockaddr      *ai_addr;
58   struct Curl_addrinfo *ai_next;
59 };
60 
61 void
62 Curl_freeaddrinfo(struct Curl_addrinfo *cahead);
63 
64 #ifdef HAVE_GETADDRINFO
65 int
66 Curl_getaddrinfo_ex(const char *nodename,
67                     const char *servname,
68                     const struct addrinfo *hints,
69                     struct Curl_addrinfo **result);
70 #endif
71 
72 struct Curl_addrinfo *
73 Curl_he2ai(const struct hostent *he, int port);
74 
75 struct Curl_addrinfo *
76 Curl_ip2addr(int af, const void *inaddr, const char *hostname, int port);
77 
78 struct Curl_addrinfo *Curl_str2addr(char *dotted, int port);
79 
80 #ifdef USE_UNIX_SOCKETS
81 struct Curl_addrinfo *Curl_unix2addr(const char *path, bool *longpath,
82                                      bool abstract);
83 #endif
84 
85 #if defined(CURLDEBUG) && defined(HAVE_GETADDRINFO) && \
86     defined(HAVE_FREEADDRINFO)
87 void
88 curl_dbg_freeaddrinfo(struct addrinfo *freethis, int line, const char *source);
89 #endif
90 
91 #if defined(CURLDEBUG) && defined(HAVE_GETADDRINFO)
92 int
93 curl_dbg_getaddrinfo(const char *hostname, const char *service,
94                      const struct addrinfo *hints, struct addrinfo **result,
95                      int line, const char *source);
96 #endif
97 
98 #ifdef HAVE_GETADDRINFO
99 #ifdef USE_RESOLVE_ON_IPS
100 void Curl_addrinfo_set_port(struct Curl_addrinfo *addrinfo, int port);
101 #else
102 #define Curl_addrinfo_set_port(x,y)
103 #endif
104 #endif
105 
106 #endif /* HEADER_CURL_ADDRINFO_H */
107