1 | /*- |
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2 | * Copyright (c) 1980, 1983, 1988, 1993 |
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3 | * The Regents of the University of California. All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * 1. Redistributions of source code must retain the above copyright |
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9 | * notice, this list of conditions and the following disclaimer. |
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10 | * 2. Redistributions in binary form must reproduce the above copyright |
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11 | * notice, this list of conditions and the following disclaimer in the |
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12 | * documentation and/or other materials provided with the distribution. |
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13 | * 3. All advertising materials mentioning features or use of this software |
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14 | * must display the following acknowledgement: |
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15 | * This product includes software developed by the University of |
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16 | * California, Berkeley and its contributors. |
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17 | * 4. Neither the name of the University nor the names of its contributors |
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18 | * may be used to endorse or promote products derived from this software |
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19 | * without specific prior written permission. |
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20 | * |
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21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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31 | * SUCH DAMAGE. |
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32 | * |
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33 | * - |
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34 | * Portions Copyright (c) 1993 by Digital Equipment Corporation. |
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35 | * |
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36 | * Permission to use, copy, modify, and distribute this software for any |
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37 | * purpose with or without fee is hereby granted, provided that the above |
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38 | * copyright notice and this permission notice appear in all copies, and that |
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39 | * the name of Digital Equipment Corporation not be used in advertising or |
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40 | * publicity pertaining to distribution of the document or software without |
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41 | * specific, written prior permission. |
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42 | * |
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43 | * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL |
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44 | * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES |
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45 | * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT |
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46 | * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
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47 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
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48 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS |
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49 | * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
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50 | * SOFTWARE. |
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51 | * - |
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52 | * --Copyright-- |
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53 | */ |
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54 | |
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55 | /* |
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56 | * @(#)netdb.h 8.1 (Berkeley) 6/2/93 |
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57 | * From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $ |
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58 | * $FreeBSD: src/include/netdb.h,v 1.23 2002/03/23 17:24:53 imp Exp $ |
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59 | */ |
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60 | |
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61 | #ifndef _NETDB_H_ |
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62 | #define _NETDB_H_ |
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63 | |
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64 | #include <sys/cdefs.h> |
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65 | #include <sys/types.h> |
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66 | #include <machine/ansi.h> |
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67 | #include <stdio.h> |
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68 | |
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69 | #ifndef __socklen_t_defined |
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70 | typedef unsigned int socklen_t; |
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71 | #define __socklen_t_defined 1 |
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72 | #endif |
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73 | |
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74 | #ifdef _BSD_SOCKLEN_T_ |
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75 | typedef _BSD_SOCKLEN_T_ socklen_t; |
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76 | #undef _BSD_SOCKLEN_T_ |
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77 | #endif |
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78 | |
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79 | #ifndef _PATH_HEQUIV |
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80 | # define _PATH_HEQUIV "/etc/hosts.equiv" |
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81 | #endif |
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82 | #define _PATH_HOSTS "/etc/hosts" |
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83 | #define _PATH_NETWORKS "/etc/networks" |
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84 | #define _PATH_PROTOCOLS "/etc/protocols" |
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85 | #define _PATH_SERVICES "/etc/services" |
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86 | #define _PATH_NSSWITCH_CONF "/etc/nsswitch.conf" |
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87 | |
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88 | |
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89 | extern int *__h_errno_location(void); |
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90 | |
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91 | #define h_errno (*(__h_errno_location())) |
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92 | |
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93 | #define MAXALIASES 35 |
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94 | /* For now, only support one return address. */ |
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95 | #define MAXADDRS 2 |
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96 | /* |
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97 | * Structures returned by network data base library. All addresses are |
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98 | * supplied in host order, and returned in network order (suitable for |
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99 | * use in system calls). |
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100 | */ |
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101 | struct hostent { |
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102 | char *h_name; /* official name of host */ |
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103 | char **h_aliases; /* alias list */ |
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104 | int h_addrtype; /* host address type */ |
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105 | int h_length; /* length of address */ |
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106 | char **h_addr_list; /* list of addresses from name server */ |
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107 | char *h_addr; /* address, for backward compatibility */ |
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108 | /* private data, for re-entrancy */ |
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109 | char *__host_addrs[MAXADDRS]; |
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110 | char *__host_aliases[MAXALIASES]; |
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111 | unsigned int __host_addr[4]; |
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112 | }; |
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113 | |
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114 | /* |
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115 | * Assumption here is that a network number |
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116 | * fits in an unsigned long -- probably a poor one. |
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117 | */ |
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118 | struct netent { |
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119 | char *n_name; /* official name of net */ |
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120 | char **n_aliases; /* alias list */ |
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121 | int n_addrtype; /* net address type */ |
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122 | unsigned long n_net; /* network # */ |
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123 | }; |
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124 | |
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125 | struct servent { |
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126 | char *s_name; /* official service name */ |
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127 | char **s_aliases; /* alias list */ |
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128 | int s_port; /* port # */ |
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129 | char *s_proto; /* protocol to use */ |
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130 | }; |
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131 | |
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132 | struct protoent { |
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133 | char *p_name; /* official protocol name */ |
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134 | char **p_aliases; /* alias list */ |
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135 | int p_proto; /* protocol # */ |
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136 | }; |
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137 | |
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138 | struct addrinfo { |
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139 | int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */ |
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140 | int ai_family; /* PF_xxx */ |
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141 | int ai_socktype; /* SOCK_xxx */ |
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142 | int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ |
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143 | size_t ai_addrlen; /* length of ai_addr */ |
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144 | char *ai_canonname; /* canonical name for hostname */ |
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145 | struct sockaddr *ai_addr; /* binary address */ |
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146 | struct addrinfo *ai_next; /* next structure in linked list */ |
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147 | }; |
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148 | |
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149 | /* |
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150 | * Error return codes from gethostbyname() and gethostbyaddr() |
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151 | * (left in extern int h_errno). |
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152 | */ |
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153 | |
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154 | #define NETDB_INTERNAL -1 /* see errno */ |
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155 | #define NETDB_SUCCESS 0 /* no problem */ |
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156 | #define HOST_NOT_FOUND 1 /* Authoritative Answer Host not found */ |
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157 | #define TRY_AGAIN 2 /* Non-Authoritative Host not found, or SERVERFAIL */ |
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158 | #define NO_RECOVERY 3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ |
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159 | #define NO_DATA 4 /* Valid name, no data record of requested type */ |
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160 | #define NO_ADDRESS NO_DATA /* no address, look for MX record */ |
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161 | |
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162 | /* |
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163 | * Error return codes from getaddrinfo() |
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164 | */ |
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165 | /* Error values for `getaddrinfo' function. */ |
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166 | # define EAI_BADFLAGS -1 /* Invalid value for `ai_flags' field. */ |
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167 | # define EAI_NONAME -2 /* NAME or SERVICE is unknown. */ |
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168 | # define EAI_AGAIN -3 /* Temporary failure in name resolution. */ |
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169 | # define EAI_FAIL -4 /* Non-recoverable failure in name res. */ |
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170 | # define EAI_NODATA -5 /* No address associated with NAME. */ |
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171 | # define EAI_FAMILY -6 /* `ai_family' not supported. */ |
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172 | # define EAI_SOCKTYPE -7 /* `ai_socktype' not supported. */ |
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173 | # define EAI_SERVICE -8 /* SERVICE not supported for `ai_socktype'. */ |
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174 | # define EAI_ADDRFAMILY -9 /* Address family for NAME not supported. */ |
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175 | # define EAI_MEMORY -10 /* Memory allocation failure. */ |
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176 | # define EAI_SYSTEM -11 /* System error returned in `errno'. */ |
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177 | # define EAI_OVERFLOW -12 /* Argument buffer overflow. */ |
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178 | # ifdef __USE_GNU |
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179 | # define EAI_INPROGRESS -100 /* Processing request in progress. */ |
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180 | # define EAI_CANCELED -101 /* Request canceled. */ |
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181 | # define EAI_NOTCANCELED -102 /* Request not canceled. */ |
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182 | # define EAI_ALLDONE -103 /* All requests done. */ |
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183 | # define EAI_INTR -104 /* Interrupted by a signal. */ |
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184 | # define EAI_IDN_ENCODE -105 /* IDN encoding failed. */ |
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185 | # endif |
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186 | |
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187 | /* |
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188 | * Flag values for getaddrinfo() |
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189 | */ |
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190 | #define AI_PASSIVE 0x00000001 /* get address to use bind() */ |
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191 | #define AI_CANONNAME 0x00000002 /* fill ai_canonname */ |
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192 | #define AI_NUMERICHOST 0x00000004 /* prevent name resolution */ |
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193 | #define AI_NUMERICSERV 0x00000008 /* don't use name resolution. */ |
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194 | /* valid flags for addrinfo */ |
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195 | #define AI_MASK \ |
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196 | (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG) |
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197 | |
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198 | #define AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */ |
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199 | #define AI_V4MAPPED_CFG 0x00000200 /* accept IPv4-mapped if kernel supports */ |
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200 | #define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */ |
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201 | #define AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */ |
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202 | /* special recommended flags for getipnodebyname */ |
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203 | #define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG) |
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204 | |
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205 | /* |
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206 | * Constants for getnameinfo() |
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207 | */ |
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208 | #define NI_MAXHOST 1025 |
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209 | #define NI_MAXSERV 32 |
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210 | |
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211 | /* |
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212 | * Flag values for getnameinfo() |
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213 | */ |
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214 | #define NI_NOFQDN 0x00000001 |
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215 | #define NI_NUMERICHOST 0x00000002 |
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216 | #define NI_NAMEREQD 0x00000004 |
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217 | #define NI_NUMERICSERV 0x00000008 |
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218 | #define NI_DGRAM 0x00000010 |
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219 | #define NI_WITHSCOPEID 0x00000020 |
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220 | |
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221 | /* |
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222 | * Scope delimit character |
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223 | */ |
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224 | #define SCOPE_DELIMITER '%' |
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225 | |
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226 | __BEGIN_DECLS |
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227 | void endhostent(void); |
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228 | void endhostent_r(FILE **, int *); |
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229 | void endnetent(void); |
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230 | void endnetgrent(void); |
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231 | void endprotoent(void); |
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232 | void endservent(void); |
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233 | void freehostent(struct hostent *); |
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234 | struct hostent *gethostbyaddr(const void *, socklen_t, int); |
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235 | struct hostent *gethostbyname(const char *); |
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236 | struct hostent *gethostbyname2(const char *, int); |
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237 | struct hostent *gethostent(void); |
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238 | int gethostent_r(struct hostent *, char *, int, int *, FILE **); |
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239 | struct hostent *getipnodebyaddr(const void *, size_t, int, int *); |
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240 | struct hostent *getipnodebyname(const char *, int, int, int *); |
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241 | struct netent *getnetbyaddr(uint32_t, int); |
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242 | struct netent *getnetbyname(const char *); |
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243 | struct netent *getnetent(void); |
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244 | int getnetgrent(char **, char **, char **); |
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245 | struct protoent *getprotobyname(const char *); |
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246 | struct protoent *getprotobynumber(int); |
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247 | struct protoent *getprotoent(void); |
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248 | struct servent *getservbyname(const char *, const char *); |
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249 | struct servent *getservbyport(int, const char *); |
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250 | struct servent *getservent(void); |
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251 | void herror(const char *); |
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252 | __const char *hstrerror(int); |
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253 | int innetgr(const char *, const char *, const char *, const char *); |
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254 | void sethostent(int); |
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255 | void sethostent_r(int, FILE **, int *); |
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256 | /* void sethostfile(const char *); */ |
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257 | void setnetent(int); |
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258 | void setprotoent(int); |
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259 | int getaddrinfo(const char *__restrict, const char *__restrict, |
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260 | const struct addrinfo *__restrict, |
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261 | struct addrinfo **__restrict); |
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262 | int getnameinfo(const struct sockaddr *__restrict, socklen_t, |
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263 | char *__restrict, socklen_t, char *__restrict, |
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264 | socklen_t, unsigned int); |
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265 | void freeaddrinfo(struct addrinfo *); |
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266 | char *gai_strerror(int); |
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267 | int setnetgrent(const char *); |
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268 | void setservent(int); |
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269 | |
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270 | /* |
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271 | * PRIVATE functions specific to the FreeBSD implementation |
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272 | */ |
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273 | |
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274 | /* DO NOT USE THESE, THEY ARE SUBJECT TO CHANGE AND ARE NOT PORTABLE!!! */ |
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275 | void _sethosthtent(int); |
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276 | void _sethosthtent_r(int, FILE **, int *); |
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277 | void _endhosthtent(void); |
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278 | void _endhosthtent_r(FILE **, int *); |
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279 | void _sethostdnsent(int); |
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280 | void _endhostdnsent(void); |
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281 | void _setnethtent(int); |
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282 | void _endnethtent(void); |
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283 | void _setnetdnsent(int); |
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284 | void _endnetdnsent(void); |
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285 | struct hostent * _gethostbynisname(const char *, int); |
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286 | struct hostent * _gethostbynisaddr(const char *, int, int); |
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287 | void _map_v4v6_address(const char *, char *); |
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288 | void _map_v4v6_hostent(struct hostent *, char **, int *); |
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289 | __END_DECLS |
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290 | |
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291 | #endif /* !_NETDB_H_ */ |
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