ReactOS  0.4.13-dev-479-gec9c8fd
netdb.h
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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
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 
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__ */
namespace GUID const ADDRINFOEXW * hints
Definition: sock.c:80
char ** h_addr_list
Definition: winsock.h:138
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
char * h_name
Definition: winsock.h:134
char ** h_aliases
Definition: winsock.h:135
static const ADDRINFOW PADDRINFOW *static const WCHAR * servname
Definition: sock.c:80
short h_length
Definition: winsock.h:137
char * ai_canonname
Definition: ws2def.h:670
int socklen_t
Definition: tcp.c:35
int ret
int ai_protocol
Definition: ws2def.h:668
short h_addrtype
Definition: winsock.h:136
int ai_socktype
Definition: ws2def.h:667
struct addrinfo * ai_next
Definition: ws2def.h:672
Definition: name.c:36
GLuint res
Definition: glext.h:9613
size_t ai_addrlen
Definition: ws2def.h:669
#define h_errno
Definition: winsock.h:225
int ai_flags
Definition: ws2def.h:665
GLuint64EXT * result
Definition: glext.h:11304
struct sockaddr * ai_addr
Definition: ws2def.h:671
int ai_family
Definition: ws2def.h:666