mbed official / lwip

Official mbed lwIP library (version 1.4.0)

Dependents:   LwIPNetworking NetServicesMin EthernetInterface EthernetInterface_RSF ... more

Legacy Networking Libraries

This is an mbed 2 networking library. For mbed OS 5, lwip has been integrated with built-in networking interfaces. The networking libraries have been revised to better support additional network stacks and thread safety here.

This library is based on the code of lwIP v1.4.0

Copyright (c) 2001, 2002 Swedish Institute of Computer Science.
All rights reserved. 

Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
   derived from this software without specific prior written permission. 

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
OF SUCH DAMAGE.

include/lwip/netdb.h@0:51ac1d130fd4, 2012-06-22 (annotated)

Committer:
mbed_official
Date:
Fri Jun 22 09:25:39 2012 +0000
Revision:
0:51ac1d130fd4
Initial import from lwip-1.4.0: http://download.savannah.gnu.org/releases/lwip/lwip-1.4.0.zip

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:51ac1d130fd4 1 /*
mbed_official 0:51ac1d130fd4 2 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 0:51ac1d130fd4 3 * are permitted provided that the following conditions are met:
mbed_official 0:51ac1d130fd4 4 *
mbed_official 0:51ac1d130fd4 5 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 0:51ac1d130fd4 6 * this list of conditions and the following disclaimer.
mbed_official 0:51ac1d130fd4 7 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 0:51ac1d130fd4 8 * this list of conditions and the following disclaimer in the documentation
mbed_official 0:51ac1d130fd4 9 * and/or other materials provided with the distribution.
mbed_official 0:51ac1d130fd4 10 * 3. The name of the author may not be used to endorse or promote products
mbed_official 0:51ac1d130fd4 11 * derived from this software without specific prior written permission.
mbed_official 0:51ac1d130fd4 12 *
mbed_official 0:51ac1d130fd4 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
mbed_official 0:51ac1d130fd4 14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
mbed_official 0:51ac1d130fd4 15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
mbed_official 0:51ac1d130fd4 16 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
mbed_official 0:51ac1d130fd4 17 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
mbed_official 0:51ac1d130fd4 18 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbed_official 0:51ac1d130fd4 19 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbed_official 0:51ac1d130fd4 20 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
mbed_official 0:51ac1d130fd4 21 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
mbed_official 0:51ac1d130fd4 22 * OF SUCH DAMAGE.
mbed_official 0:51ac1d130fd4 23 *
mbed_official 0:51ac1d130fd4 24 * This file is part of the lwIP TCP/IP stack.
mbed_official 0:51ac1d130fd4 25 *
mbed_official 0:51ac1d130fd4 26 * Author: Simon Goldschmidt
mbed_official 0:51ac1d130fd4 27 *
mbed_official 0:51ac1d130fd4 28 */
mbed_official 0:51ac1d130fd4 29 #ifndef __LWIP_NETDB_H__
mbed_official 0:51ac1d130fd4 30 #define __LWIP_NETDB_H__
mbed_official 0:51ac1d130fd4 31
mbed_official 0:51ac1d130fd4 32 #include "lwip/opt.h"
mbed_official 0:51ac1d130fd4 33
mbed_official 0:51ac1d130fd4 34 #if LWIP_DNS && LWIP_SOCKET
mbed_official 0:51ac1d130fd4 35
mbed_official 0:51ac1d130fd4 36 #include <stddef.h> /* for size_t */
mbed_official 0:51ac1d130fd4 37
mbed_official 0:51ac1d130fd4 38 #include "lwip/inet.h"
mbed_official 0:51ac1d130fd4 39 #include "lwip/sockets.h"
mbed_official 0:51ac1d130fd4 40
mbed_official 0:51ac1d130fd4 41 #ifdef __cplusplus
mbed_official 0:51ac1d130fd4 42 extern "C" {
mbed_official 0:51ac1d130fd4 43 #endif
mbed_official 0:51ac1d130fd4 44
mbed_official 0:51ac1d130fd4 45 /* some rarely used options */
mbed_official 0:51ac1d130fd4 46 #ifndef LWIP_DNS_API_DECLARE_H_ERRNO
mbed_official 0:51ac1d130fd4 47 #define LWIP_DNS_API_DECLARE_H_ERRNO 1
mbed_official 0:51ac1d130fd4 48 #endif
mbed_official 0:51ac1d130fd4 49
mbed_official 0:51ac1d130fd4 50 #ifndef LWIP_DNS_API_DEFINE_ERRORS
mbed_official 0:51ac1d130fd4 51 #define LWIP_DNS_API_DEFINE_ERRORS 1
mbed_official 0:51ac1d130fd4 52 #endif
mbed_official 0:51ac1d130fd4 53
mbed_official 0:51ac1d130fd4 54 #ifndef LWIP_DNS_API_DECLARE_STRUCTS
mbed_official 0:51ac1d130fd4 55 #define LWIP_DNS_API_DECLARE_STRUCTS 1
mbed_official 0:51ac1d130fd4 56 #endif
mbed_official 0:51ac1d130fd4 57
mbed_official 0:51ac1d130fd4 58 #if LWIP_DNS_API_DEFINE_ERRORS
mbed_official 0:51ac1d130fd4 59 /** Errors used by the DNS API functions, h_errno can be one of them */
mbed_official 0:51ac1d130fd4 60 #define EAI_NONAME 200
mbed_official 0:51ac1d130fd4 61 #define EAI_SERVICE 201
mbed_official 0:51ac1d130fd4 62 #define EAI_FAIL 202
mbed_official 0:51ac1d130fd4 63 #define EAI_MEMORY 203
mbed_official 0:51ac1d130fd4 64
mbed_official 0:51ac1d130fd4 65 #define HOST_NOT_FOUND 210
mbed_official 0:51ac1d130fd4 66 #define NO_DATA 211
mbed_official 0:51ac1d130fd4 67 #define NO_RECOVERY 212
mbed_official 0:51ac1d130fd4 68 #define TRY_AGAIN 213
mbed_official 0:51ac1d130fd4 69 #endif /* LWIP_DNS_API_DEFINE_ERRORS */
mbed_official 0:51ac1d130fd4 70
mbed_official 0:51ac1d130fd4 71 #if LWIP_DNS_API_DECLARE_STRUCTS
mbed_official 0:51ac1d130fd4 72 struct hostent {
mbed_official 0:51ac1d130fd4 73 char *h_name; /* Official name of the host. */
mbed_official 0:51ac1d130fd4 74 char **h_aliases; /* A pointer to an array of pointers to alternative host names,
mbed_official 0:51ac1d130fd4 75 terminated by a null pointer. */
mbed_official 0:51ac1d130fd4 76 int h_addrtype; /* Address type. */
mbed_official 0:51ac1d130fd4 77 int h_length; /* The length, in bytes, of the address. */
mbed_official 0:51ac1d130fd4 78 char **h_addr_list; /* A pointer to an array of pointers to network addresses (in
mbed_official 0:51ac1d130fd4 79 network byte order) for the host, terminated by a null pointer. */
mbed_official 0:51ac1d130fd4 80 #define h_addr h_addr_list[0] /* for backward compatibility */
mbed_official 0:51ac1d130fd4 81 };
mbed_official 0:51ac1d130fd4 82
mbed_official 0:51ac1d130fd4 83 struct addrinfo {
mbed_official 0:51ac1d130fd4 84 int ai_flags; /* Input flags. */
mbed_official 0:51ac1d130fd4 85 int ai_family; /* Address family of socket. */
mbed_official 0:51ac1d130fd4 86 int ai_socktype; /* Socket type. */
mbed_official 0:51ac1d130fd4 87 int ai_protocol; /* Protocol of socket. */
mbed_official 0:51ac1d130fd4 88 socklen_t ai_addrlen; /* Length of socket address. */
mbed_official 0:51ac1d130fd4 89 struct sockaddr *ai_addr; /* Socket address of socket. */
mbed_official 0:51ac1d130fd4 90 char *ai_canonname; /* Canonical name of service location. */
mbed_official 0:51ac1d130fd4 91 struct addrinfo *ai_next; /* Pointer to next in list. */
mbed_official 0:51ac1d130fd4 92 };
mbed_official 0:51ac1d130fd4 93 #endif /* LWIP_DNS_API_DECLARE_STRUCTS */
mbed_official 0:51ac1d130fd4 94
mbed_official 0:51ac1d130fd4 95 #if LWIP_DNS_API_DECLARE_H_ERRNO
mbed_official 0:51ac1d130fd4 96 /* application accessable error code set by the DNS API functions */
mbed_official 0:51ac1d130fd4 97 extern int h_errno;
mbed_official 0:51ac1d130fd4 98 #endif /* LWIP_DNS_API_DECLARE_H_ERRNO*/
mbed_official 0:51ac1d130fd4 99
mbed_official 0:51ac1d130fd4 100 struct hostent *lwip_gethostbyname(const char *name);
mbed_official 0:51ac1d130fd4 101 int lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
mbed_official 0:51ac1d130fd4 102 size_t buflen, struct hostent **result, int *h_errnop);
mbed_official 0:51ac1d130fd4 103 void lwip_freeaddrinfo(struct addrinfo *ai);
mbed_official 0:51ac1d130fd4 104 int lwip_getaddrinfo(const char *nodename,
mbed_official 0:51ac1d130fd4 105 const char *servname,
mbed_official 0:51ac1d130fd4 106 const struct addrinfo *hints,
mbed_official 0:51ac1d130fd4 107 struct addrinfo **res);
mbed_official 0:51ac1d130fd4 108
mbed_official 0:51ac1d130fd4 109 #if LWIP_COMPAT_SOCKETS
mbed_official 0:51ac1d130fd4 110 #define gethostbyname(name) lwip_gethostbyname(name)
mbed_official 0:51ac1d130fd4 111 #define gethostbyname_r(name, ret, buf, buflen, result, h_errnop) \
mbed_official 0:51ac1d130fd4 112 lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop)
mbed_official 0:51ac1d130fd4 113 #define freeaddrinfo(addrinfo) lwip_freeaddrinfo(addrinfo)
mbed_official 0:51ac1d130fd4 114 #define getaddrinfo(nodname, servname, hints, res) \
mbed_official 0:51ac1d130fd4 115 lwip_getaddrinfo(nodname, servname, hints, res)
mbed_official 0:51ac1d130fd4 116 #endif /* LWIP_COMPAT_SOCKETS */
mbed_official 0:51ac1d130fd4 117
mbed_official 0:51ac1d130fd4 118 #ifdef __cplusplus
mbed_official 0:51ac1d130fd4 119 }
mbed_official 0:51ac1d130fd4 120 #endif
mbed_official 0:51ac1d130fd4 121
mbed_official 0:51ac1d130fd4 122 #endif /* LWIP_DNS && LWIP_SOCKET */
mbed_official 0:51ac1d130fd4 123
mbed_official 0:51ac1d130fd4 124 #endif /* __LWIP_NETDB_H__ */