source: UsbWattMeter/trunk/lwip-1.4.1/src/include/lwip/netdb.h@ 164

Last change on this file since 164 was 164, checked in by coas-nagasima, 6 years ago

TOPPERS/ECNLサンプルアプリ「USB充電器電力計」を追加

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
  • Property svn:mime-type set to text/x-chdr
File size: 4.5 KB
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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
42extern "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
72struct 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
83struct 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 */
97extern int h_errno;
98#endif /* LWIP_DNS_API_DECLARE_H_ERRNO*/
99
100struct hostent *lwip_gethostbyname(const char *name);
101int lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
102 size_t buflen, struct hostent **result, int *h_errnop);
103void lwip_freeaddrinfo(struct addrinfo *ai);
104int 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__ */
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