[TCPIP]
[reactos.git] / reactos / lib / drivers / lwip / src / include / lwip / netdb.h
1 /*
2 * Redistribution and use in source and binary forms, with or without modification,
3 * are permitted provided that the following conditions are met:
4 *
5 * 1. Redistributions of source code must retain the above copyright notice,
6 * this list of conditions and the following disclaimer.
7 * 2. Redistributions in binary form must reproduce the above copyright notice,
8 * this list of conditions and the following disclaimer in the documentation
9 * and/or other materials provided with the distribution.
10 * 3. The name of the author may not be used to endorse or promote products
11 * derived from this software without specific prior written permission.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
16 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
17 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
18 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
19 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
20 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
21 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
22 * OF SUCH DAMAGE.
23 *
24 * This file is part of the lwIP TCP/IP stack.
25 *
26 * Author: Simon Goldschmidt
27 *
28 */
29 #ifndef __LWIP_NETDB_H__
30 #define __LWIP_NETDB_H__
31
32 #include "lwip/opt.h"
33
34 #if LWIP_DNS && LWIP_SOCKET
35
36 #include <stddef.h> /* for size_t */
37
38 #include "lwip/inet.h"
39 #include "lwip/sockets.h"
40
41 #ifdef __cplusplus
42 extern "C" {
43 #endif
44
45 /* some rarely used options */
46 #ifndef LWIP_DNS_API_DECLARE_H_ERRNO
47 #define LWIP_DNS_API_DECLARE_H_ERRNO 1
48 #endif
49
50 #ifndef LWIP_DNS_API_DEFINE_ERRORS
51 #define LWIP_DNS_API_DEFINE_ERRORS 1
52 #endif
53
54 #ifndef LWIP_DNS_API_DECLARE_STRUCTS
55 #define LWIP_DNS_API_DECLARE_STRUCTS 1
56 #endif
57
58 #if LWIP_DNS_API_DEFINE_ERRORS
59 /** Errors used by the DNS API functions, h_errno can be one of them */
60 #define EAI_NONAME 200
61 #define EAI_SERVICE 201
62 #define EAI_FAIL 202
63 #define EAI_MEMORY 203
64
65 #define HOST_NOT_FOUND 210
66 #define NO_DATA 211
67 #define NO_RECOVERY 212
68 #define TRY_AGAIN 213
69 #endif /* LWIP_DNS_API_DEFINE_ERRORS */
70
71 #if LWIP_DNS_API_DECLARE_STRUCTS
72 struct hostent {
73 char *h_name; /* Official name of the host. */
74 char **h_aliases; /* A pointer to an array of pointers to alternative host names,
75 terminated by a null pointer. */
76 int h_addrtype; /* Address type. */
77 int h_length; /* The length, in bytes, of the address. */
78 char **h_addr_list; /* A pointer to an array of pointers to network addresses (in
79 network byte order) for the host, terminated by a null pointer. */
80 #define h_addr h_addr_list[0] /* for backward compatibility */
81 };
82
83 struct addrinfo {
84 int ai_flags; /* Input flags. */
85 int ai_family; /* Address family of socket. */
86 int ai_socktype; /* Socket type. */
87 int ai_protocol; /* Protocol of socket. */
88 socklen_t ai_addrlen; /* Length of socket address. */
89 struct sockaddr *ai_addr; /* Socket address of socket. */
90 char *ai_canonname; /* Canonical name of service location. */
91 struct addrinfo *ai_next; /* Pointer to next in list. */
92 };
93 #endif /* LWIP_DNS_API_DECLARE_STRUCTS */
94
95 #if LWIP_DNS_API_DECLARE_H_ERRNO
96 /* application accessable error code set by the DNS API functions */
97 extern int h_errno;
98 #endif /* LWIP_DNS_API_DECLARE_H_ERRNO*/
99
100 struct hostent *lwip_gethostbyname(const char *name);
101 int lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
102 size_t buflen, struct hostent **result, int *h_errnop);
103 void lwip_freeaddrinfo(struct addrinfo *ai);
104 int lwip_getaddrinfo(const char *nodename,
105 const char *servname,
106 const struct addrinfo *hints,
107 struct addrinfo **res);
108
109 #if LWIP_COMPAT_SOCKETS
110 #define gethostbyname(name) lwip_gethostbyname(name)
111 #define gethostbyname_r(name, ret, buf, buflen, result, h_errnop) \
112 lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop)
113 #define freeaddrinfo(addrinfo) lwip_freeaddrinfo(addrinfo)
114 #define getaddrinfo(nodname, servname, hints, res) \
115 lwip_getaddrinfo(nodname, servname, hints, res)
116 #endif /* LWIP_COMPAT_SOCKETS */
117
118 #ifdef __cplusplus
119 }
120 #endif
121
122 #endif /* LWIP_DNS && LWIP_SOCKET */
123
124 #endif /* __LWIP_NETDB_H__ */