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lwip/include/lwip/netdb.h@0:ac1725ba162c, 2010-11-09 (annotated)
- Committer:
- segundo
- Date:
- Tue Nov 09 20:54:15 2010 +0000
- Revision:
- 0:ac1725ba162c
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| segundo | 0:ac1725ba162c | 1 | /* |
| segundo | 0:ac1725ba162c | 2 | * Redistribution and use in source and binary forms, with or without modification, |
| segundo | 0:ac1725ba162c | 3 | * are permitted provided that the following conditions are met: |
| segundo | 0:ac1725ba162c | 4 | * |
| segundo | 0:ac1725ba162c | 5 | * 1. Redistributions of source code must retain the above copyright notice, |
| segundo | 0:ac1725ba162c | 6 | * this list of conditions and the following disclaimer. |
| segundo | 0:ac1725ba162c | 7 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| segundo | 0:ac1725ba162c | 8 | * this list of conditions and the following disclaimer in the documentation |
| segundo | 0:ac1725ba162c | 9 | * and/or other materials provided with the distribution. |
| segundo | 0:ac1725ba162c | 10 | * 3. The name of the author may not be used to endorse or promote products |
| segundo | 0:ac1725ba162c | 11 | * derived from this software without specific prior written permission. |
| segundo | 0:ac1725ba162c | 12 | * |
| segundo | 0:ac1725ba162c | 13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| segundo | 0:ac1725ba162c | 14 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| segundo | 0:ac1725ba162c | 15 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| segundo | 0:ac1725ba162c | 16 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| segundo | 0:ac1725ba162c | 17 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| segundo | 0:ac1725ba162c | 18 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| segundo | 0:ac1725ba162c | 19 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| segundo | 0:ac1725ba162c | 20 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| segundo | 0:ac1725ba162c | 21 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| segundo | 0:ac1725ba162c | 22 | * OF SUCH DAMAGE. |
| segundo | 0:ac1725ba162c | 23 | * |
| segundo | 0:ac1725ba162c | 24 | * This file is part of the lwIP TCP/IP stack. |
| segundo | 0:ac1725ba162c | 25 | * |
| segundo | 0:ac1725ba162c | 26 | * Author: Simon Goldschmidt |
| segundo | 0:ac1725ba162c | 27 | * |
| segundo | 0:ac1725ba162c | 28 | */ |
| segundo | 0:ac1725ba162c | 29 | #ifndef __LWIP_NETDB_H__ |
| segundo | 0:ac1725ba162c | 30 | #define __LWIP_NETDB_H__ |
| segundo | 0:ac1725ba162c | 31 | |
| segundo | 0:ac1725ba162c | 32 | #include "lwip/opt.h" |
| segundo | 0:ac1725ba162c | 33 | |
| segundo | 0:ac1725ba162c | 34 | #if LWIP_DNS && LWIP_SOCKET |
| segundo | 0:ac1725ba162c | 35 | |
| segundo | 0:ac1725ba162c | 36 | #include <stddef.h> /* for size_t */ |
| segundo | 0:ac1725ba162c | 37 | |
| segundo | 0:ac1725ba162c | 38 | #include "lwip/inet.h" |
| segundo | 0:ac1725ba162c | 39 | #include "lwip/sockets.h" |
| segundo | 0:ac1725ba162c | 40 | |
| segundo | 0:ac1725ba162c | 41 | /* some rarely used options */ |
| segundo | 0:ac1725ba162c | 42 | #ifndef LWIP_DNS_API_DECLARE_H_ERRNO |
| segundo | 0:ac1725ba162c | 43 | #define LWIP_DNS_API_DECLARE_H_ERRNO 1 |
| segundo | 0:ac1725ba162c | 44 | #endif |
| segundo | 0:ac1725ba162c | 45 | |
| segundo | 0:ac1725ba162c | 46 | #ifndef LWIP_DNS_API_DEFINE_ERRORS |
| segundo | 0:ac1725ba162c | 47 | #define LWIP_DNS_API_DEFINE_ERRORS 1 |
| segundo | 0:ac1725ba162c | 48 | #endif |
| segundo | 0:ac1725ba162c | 49 | |
| segundo | 0:ac1725ba162c | 50 | #ifndef LWIP_DNS_API_DECLARE_STRUCTS |
| segundo | 0:ac1725ba162c | 51 | #define LWIP_DNS_API_DECLARE_STRUCTS 1 |
| segundo | 0:ac1725ba162c | 52 | #endif |
| segundo | 0:ac1725ba162c | 53 | |
| segundo | 0:ac1725ba162c | 54 | #if LWIP_DNS_API_DEFINE_ERRORS |
| segundo | 0:ac1725ba162c | 55 | /** Errors used by the DNS API functions, h_errno can be one of them */ |
| segundo | 0:ac1725ba162c | 56 | #define EAI_NONAME 200 |
| segundo | 0:ac1725ba162c | 57 | #define EAI_SERVICE 201 |
| segundo | 0:ac1725ba162c | 58 | #define EAI_FAIL 202 |
| segundo | 0:ac1725ba162c | 59 | #define EAI_MEMORY 203 |
| segundo | 0:ac1725ba162c | 60 | |
| segundo | 0:ac1725ba162c | 61 | #define HOST_NOT_FOUND 210 |
| segundo | 0:ac1725ba162c | 62 | #define NO_DATA 211 |
| segundo | 0:ac1725ba162c | 63 | #define NO_RECOVERY 212 |
| segundo | 0:ac1725ba162c | 64 | #define TRY_AGAIN 213 |
| segundo | 0:ac1725ba162c | 65 | #endif /* LWIP_DNS_API_DEFINE_ERRORS */ |
| segundo | 0:ac1725ba162c | 66 | |
| segundo | 0:ac1725ba162c | 67 | #if LWIP_DNS_API_DECLARE_STRUCTS |
| segundo | 0:ac1725ba162c | 68 | struct hostent { |
| segundo | 0:ac1725ba162c | 69 | char *h_name; /* Official name of the host. */ |
| segundo | 0:ac1725ba162c | 70 | char **h_aliases; /* A pointer to an array of pointers to alternative host names, |
| segundo | 0:ac1725ba162c | 71 | terminated by a null pointer. */ |
| segundo | 0:ac1725ba162c | 72 | int h_addrtype; /* Address type. */ |
| segundo | 0:ac1725ba162c | 73 | int h_length; /* The length, in bytes, of the address. */ |
| segundo | 0:ac1725ba162c | 74 | char **h_addr_list; /* A pointer to an array of pointers to network addresses (in |
| segundo | 0:ac1725ba162c | 75 | network byte order) for the host, terminated by a null pointer. */ |
| segundo | 0:ac1725ba162c | 76 | #define h_addr h_addr_list[0] /* for backward compatibility */ |
| segundo | 0:ac1725ba162c | 77 | }; |
| segundo | 0:ac1725ba162c | 78 | |
| segundo | 0:ac1725ba162c | 79 | struct addrinfo { |
| segundo | 0:ac1725ba162c | 80 | int ai_flags; /* Input flags. */ |
| segundo | 0:ac1725ba162c | 81 | int ai_family; /* Address family of socket. */ |
| segundo | 0:ac1725ba162c | 82 | int ai_socktype; /* Socket type. */ |
| segundo | 0:ac1725ba162c | 83 | int ai_protocol; /* Protocol of socket. */ |
| segundo | 0:ac1725ba162c | 84 | socklen_t ai_addrlen; /* Length of socket address. */ |
| segundo | 0:ac1725ba162c | 85 | struct sockaddr *ai_addr; /* Socket address of socket. */ |
| segundo | 0:ac1725ba162c | 86 | char *ai_canonname; /* Canonical name of service location. */ |
| segundo | 0:ac1725ba162c | 87 | struct addrinfo *ai_next; /* Pointer to next in list. */ |
| segundo | 0:ac1725ba162c | 88 | }; |
| segundo | 0:ac1725ba162c | 89 | #endif /* LWIP_DNS_API_DECLARE_STRUCTS */ |
| segundo | 0:ac1725ba162c | 90 | |
| segundo | 0:ac1725ba162c | 91 | #if LWIP_DNS_API_DECLARE_H_ERRNO |
| segundo | 0:ac1725ba162c | 92 | /* application accessable error code set by the DNS API functions */ |
| segundo | 0:ac1725ba162c | 93 | extern int h_errno; |
| segundo | 0:ac1725ba162c | 94 | #endif /* LWIP_DNS_API_DECLARE_H_ERRNO*/ |
| segundo | 0:ac1725ba162c | 95 | |
| segundo | 0:ac1725ba162c | 96 | struct hostent *lwip_gethostbyname(const char *name); |
| segundo | 0:ac1725ba162c | 97 | int lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf, |
| segundo | 0:ac1725ba162c | 98 | size_t buflen, struct hostent **result, int *h_errnop); |
| segundo | 0:ac1725ba162c | 99 | void lwip_freeaddrinfo(struct addrinfo *ai); |
| segundo | 0:ac1725ba162c | 100 | int lwip_getaddrinfo(const char *nodename, |
| segundo | 0:ac1725ba162c | 101 | const char *servname, |
| segundo | 0:ac1725ba162c | 102 | const struct addrinfo *hints, |
| segundo | 0:ac1725ba162c | 103 | struct addrinfo **res); |
| segundo | 0:ac1725ba162c | 104 | |
| segundo | 0:ac1725ba162c | 105 | #if LWIP_COMPAT_SOCKETS |
| segundo | 0:ac1725ba162c | 106 | #define gethostbyname(name) lwip_gethostbyname(name) |
| segundo | 0:ac1725ba162c | 107 | #define gethostbyname_r(name, ret, buf, buflen, result, h_errnop) \ |
| segundo | 0:ac1725ba162c | 108 | lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop) |
| segundo | 0:ac1725ba162c | 109 | #define freeaddrinfo(addrinfo) lwip_freeaddrinfo(addrinfo) |
| segundo | 0:ac1725ba162c | 110 | #define getaddrinfo(nodname, servname, hints, res) \ |
| segundo | 0:ac1725ba162c | 111 | lwip_getaddrinfo(nodname, servname, hints, res) |
| segundo | 0:ac1725ba162c | 112 | #endif /* LWIP_COMPAT_SOCKETS */ |
| segundo | 0:ac1725ba162c | 113 | |
| segundo | 0:ac1725ba162c | 114 | #endif /* LWIP_DNS && LWIP_SOCKET */ |
| segundo | 0:ac1725ba162c | 115 | |
| segundo | 0:ac1725ba162c | 116 | #endif /* __LWIP_NETDB_H__ */ |