1 | /* |
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2 | * Copyright (c) 1983, 1987, 1989 |
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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 | /* |
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35 | * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") |
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36 | * Portions Copyright (c) 1996-1999 by Internet Software Consortium. |
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37 | * |
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38 | * Permission to use, copy, modify, and distribute this software for any |
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39 | * purpose with or without fee is hereby granted, provided that the above |
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40 | * copyright notice and this permission notice appear in all copies. |
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41 | * |
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42 | * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES |
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43 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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44 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR |
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45 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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46 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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47 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
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48 | * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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49 | */ |
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50 | |
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51 | /*% |
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52 | * @(#)resolv.h 8.1 (Berkeley) 6/2/93 |
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53 | * $Id: resolv.h,v 1.19.18.4 2008/04/03 23:15:15 marka Exp $ |
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54 | * $FreeBSD$ |
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55 | */ |
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56 | |
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57 | #ifndef _RESOLV_H_ |
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58 | #define _RESOLV_H_ |
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59 | |
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60 | #include <sys/param.h> |
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61 | #include <sys/types.h> |
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62 | #include <sys/cdefs.h> |
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63 | #include <sys/socket.h> |
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64 | #include <stdio.h> |
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65 | #include <arpa/nameser.h> |
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66 | |
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67 | /*% |
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68 | * Revision information. This is the release date in YYYYMMDD format. |
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69 | * It can change every day so the right thing to do with it is use it |
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70 | * in preprocessor commands such as "#if (__RES > 19931104)". Do not |
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71 | * compare for equality; rather, use it to determine whether your resolver |
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72 | * is new enough to contain a certain feature. |
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73 | */ |
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74 | |
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75 | #define __RES 20030124 |
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76 | |
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77 | /*% |
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78 | * This used to be defined in res_query.c, now it's in herror.c. |
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79 | * [XXX no it's not. It's in irs/irs_data.c] |
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80 | * It was |
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81 | * never extern'd by any *.h file before it was placed here. For thread |
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82 | * aware programs, the last h_errno value set is stored in res->h_errno. |
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83 | * |
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84 | * XXX: There doesn't seem to be a good reason for exposing RES_SET_H_ERRNO |
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85 | * (and __h_errno_set) to the public via <resolv.h>. |
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86 | * XXX: __h_errno_set is really part of IRS, not part of the resolver. |
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87 | * If somebody wants to build and use a resolver that doesn't use IRS, |
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88 | * what do they do? Perhaps something like |
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89 | * #ifdef WANT_IRS |
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90 | * # define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x) |
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91 | * #else |
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92 | * # define RES_SET_H_ERRNO(r,x) (h_errno = (r)->res_h_errno = (x)) |
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93 | * #endif |
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94 | */ |
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95 | |
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96 | #define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x) |
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97 | struct __res_state; /*%< forward */ |
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98 | __BEGIN_DECLS |
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99 | void __h_errno_set(struct __res_state *, int); |
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100 | __END_DECLS |
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101 | |
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102 | /*% |
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103 | * Resolver configuration file. |
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104 | * Normally not present, but may contain the address of the |
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105 | * initial name server(s) to query and the domain search list. |
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106 | */ |
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107 | |
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108 | #ifndef _PATH_RESCONF |
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109 | #define _PATH_RESCONF "/etc/resolv.conf" |
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110 | #endif |
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111 | |
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112 | typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error } |
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113 | res_sendhookact; |
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114 | |
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115 | typedef res_sendhookact (*res_send_qhook)(struct sockaddr * const *, |
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116 | const u_char **, int *, |
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117 | u_char *, int, int *); |
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118 | |
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119 | typedef res_sendhookact (*res_send_rhook)(const struct sockaddr *, |
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120 | const u_char *, int, u_char *, |
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121 | int, int *); |
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122 | |
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123 | struct res_sym { |
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124 | int number; /*%< Identifying number, like T_MX */ |
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125 | const char * name; /*%< Its symbolic name, like "MX" */ |
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126 | const char * humanname; /*%< Its fun name, like "mail exchanger" */ |
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127 | }; |
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128 | |
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129 | /*% |
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130 | * Global defines and variables for resolver stub. |
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131 | */ |
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132 | #define MAXNS 3 /*%< max # name servers we'll track */ |
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133 | #define MAXDFLSRCH 3 /*%< # default domain levels to try */ |
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134 | #define MAXDNSRCH 6 /*%< max # domains in search path */ |
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135 | #define LOCALDOMAINPARTS 2 /*%< min levels in name that is "local" */ |
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136 | #define RES_TIMEOUT 5 /*%< min. seconds between retries */ |
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137 | #define MAXRESOLVSORT 10 /*%< number of net to sort on */ |
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138 | #define RES_MAXNDOTS 15 /*%< should reflect bit field size */ |
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139 | #define RES_MAXRETRANS 30 /*%< only for resolv.conf/RES_OPTIONS */ |
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140 | #define RES_MAXRETRY 5 /*%< only for resolv.conf/RES_OPTIONS */ |
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141 | #define RES_DFLRETRY 2 /*%< Default #/tries. */ |
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142 | #define RES_MAXTIME 65535 /*%< Infinity, in milliseconds. */ |
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143 | struct __res_state_ext; |
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144 | |
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145 | struct __res_state { |
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146 | int retrans; /*%< retransmission time interval */ |
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147 | int retry; /*%< number of times to retransmit */ |
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148 | /* |
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149 | * XXX: If `sun' is defined, `options' and `pfcode' are |
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150 | * defined as u_int in original BIND9 distribution. However, |
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151 | * it breaks binary backward compatibility against FreeBSD's |
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152 | * resolver. So, we changed not to see `sun'. |
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153 | */ |
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154 | #if defined(sun) && 0 |
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155 | u_int options; /*%< option flags - see below. */ |
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156 | #else |
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157 | u_long options; /*%< option flags - see below. */ |
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158 | #endif |
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159 | int nscount; /*%< number of name servers */ |
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160 | struct sockaddr_in |
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161 | nsaddr_list[MAXNS]; /*%< address of name server */ |
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162 | #define nsaddr nsaddr_list[0] /*%< for backward compatibility */ |
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163 | u_short id; /*%< current message id */ |
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164 | char *dnsrch[MAXDNSRCH+1]; /*%< components of domain to search */ |
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165 | char defdname[256]; /*%< default domain (deprecated) */ |
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166 | #if defined(sun) && 0 |
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167 | u_int pfcode; /*%< RES_PRF_ flags - see below. */ |
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168 | #else |
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169 | u_long pfcode; /*%< RES_PRF_ flags - see below. */ |
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170 | #endif |
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171 | unsigned ndots:4; /*%< threshold for initial abs. query */ |
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172 | unsigned nsort:4; /*%< number of elements in sort_list[] */ |
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173 | char unused[3]; |
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174 | struct { |
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175 | struct in_addr addr; |
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176 | u_int32_t mask; |
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177 | } sort_list[MAXRESOLVSORT]; |
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178 | res_send_qhook qhook; /*%< query hook */ |
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179 | res_send_rhook rhook; /*%< response hook */ |
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180 | int res_h_errno; /*%< last one set for this context */ |
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181 | int _vcsock; /*%< PRIVATE: for res_send VC i/o */ |
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182 | u_int _flags; /*%< PRIVATE: see below */ |
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183 | u_int _pad; /*%< make _u 64 bit aligned */ |
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184 | union { |
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185 | /* On an 32-bit arch this means 512b total. */ |
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186 | char pad[72 - 4*sizeof (int) - 2*sizeof (void *)]; |
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187 | struct { |
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188 | u_int16_t nscount; |
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189 | u_int16_t nstimes[MAXNS]; /*%< ms. */ |
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190 | int nssocks[MAXNS]; |
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191 | struct __res_state_ext *ext; /*%< extention for IPv6 */ |
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192 | } _ext; |
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193 | } _u; |
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194 | }; |
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195 | |
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196 | typedef struct __res_state *res_state; |
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197 | |
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198 | union res_sockaddr_union { |
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199 | struct sockaddr_in sin; |
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200 | #ifdef IN6ADDR_ANY_INIT |
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201 | struct sockaddr_in6 sin6; |
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202 | #endif |
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203 | #ifdef ISC_ALIGN64 |
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204 | int64_t __align64; /*%< 64bit alignment */ |
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205 | #else |
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206 | int32_t __align32; /*%< 32bit alignment */ |
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207 | #endif |
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208 | char __space[128]; /*%< max size */ |
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209 | }; |
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210 | |
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211 | /*% |
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212 | * Resolver flags (used to be discrete per-module statics ints). |
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213 | */ |
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214 | #define RES_F_VC 0x00000001 /*%< socket is TCP */ |
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215 | #define RES_F_CONN 0x00000002 /*%< socket is connected */ |
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216 | #define RES_F_EDNS0ERR 0x00000004 /*%< EDNS0 caused errors */ |
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217 | #define RES_F__UNUSED 0x00000008 /*%< (unused) */ |
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218 | #define RES_F_LASTMASK 0x000000F0 /*%< ordinal server of last res_nsend */ |
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219 | #define RES_F_LASTSHIFT 4 /*%< bit position of LASTMASK "flag" */ |
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220 | #define RES_GETLAST(res) (((res)._flags & RES_F_LASTMASK) >> RES_F_LASTSHIFT) |
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221 | |
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222 | /* res_findzonecut2() options */ |
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223 | #define RES_EXHAUSTIVE 0x00000001 /*%< always do all queries */ |
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224 | #define RES_IPV4ONLY 0x00000002 /*%< IPv4 only */ |
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225 | #define RES_IPV6ONLY 0x00000004 /*%< IPv6 only */ |
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226 | |
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227 | /*% |
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228 | * Resolver options (keep these in synch with res_debug.c, please) |
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229 | */ |
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230 | #define RES_INIT 0x00000001 /*%< address initialized */ |
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231 | #define RES_DEBUG 0x00000002 /*%< print debug messages */ |
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232 | #define RES_AAONLY 0x00000004 /*%< authoritative answers only (!IMPL)*/ |
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233 | #define RES_USEVC 0x00000008 /*%< use virtual circuit */ |
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234 | #define RES_PRIMARY 0x00000010 /*%< query primary server only (!IMPL) */ |
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235 | #define RES_IGNTC 0x00000020 /*%< ignore truncation errors */ |
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236 | #define RES_RECURSE 0x00000040 /*%< recursion desired */ |
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237 | #define RES_DEFNAMES 0x00000080 /*%< use default domain name */ |
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238 | #define RES_STAYOPEN 0x00000100 /*%< Keep TCP socket open */ |
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239 | #define RES_DNSRCH 0x00000200 /*%< search up local domain tree */ |
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240 | #define RES_INSECURE1 0x00000400 /*%< type 1 security disabled */ |
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241 | #define RES_INSECURE2 0x00000800 /*%< type 2 security disabled */ |
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242 | #define RES_NOALIASES 0x00001000 /*%< shuts off HOSTALIASES feature */ |
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243 | #define RES_USE_INET6 0x00002000 /*%< use/map IPv6 in gethostbyname() */ |
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244 | #define RES_ROTATE 0x00004000 /*%< rotate ns list after each query */ |
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245 | #define RES_NOCHECKNAME 0x00008000 /*%< do not check names for sanity. */ |
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246 | #define RES_KEEPTSIG 0x00010000 /*%< do not strip TSIG records */ |
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247 | #define RES_BLAST 0x00020000 /*%< blast all recursive servers */ |
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248 | #define RES_NSID 0x00040000 /*%< request name server ID */ |
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249 | #define RES_NOTLDQUERY 0x00100000 /*%< don't unqualified name as a tld */ |
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250 | #define RES_USE_DNSSEC 0x00200000 /*%< use DNSSEC using OK bit in OPT */ |
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251 | /* #define RES_DEBUG2 0x00400000 */ /* nslookup internal */ |
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252 | /* KAME extensions: use higher bit to avoid conflict with ISC use */ |
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253 | #define RES_USE_DNAME 0x10000000 /*%< use DNAME */ |
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254 | #define RES_USE_EDNS0 0x40000000 /*%< use EDNS0 if configured */ |
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255 | #define RES_NO_NIBBLE2 0x80000000 /*%< disable alternate nibble lookup */ |
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256 | |
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257 | #define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | \ |
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258 | RES_DNSRCH | RES_NO_NIBBLE2) |
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259 | |
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260 | /*% |
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261 | * Resolver "pfcode" values. Used by dig. |
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262 | */ |
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263 | #define RES_PRF_STATS 0x00000001 |
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264 | #define RES_PRF_UPDATE 0x00000002 |
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265 | #define RES_PRF_CLASS 0x00000004 |
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266 | #define RES_PRF_CMD 0x00000008 |
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267 | #define RES_PRF_QUES 0x00000010 |
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268 | #define RES_PRF_ANS 0x00000020 |
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269 | #define RES_PRF_AUTH 0x00000040 |
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270 | #define RES_PRF_ADD 0x00000080 |
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271 | #define RES_PRF_HEAD1 0x00000100 |
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272 | #define RES_PRF_HEAD2 0x00000200 |
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273 | #define RES_PRF_TTLID 0x00000400 |
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274 | #define RES_PRF_HEADX 0x00000800 |
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275 | #define RES_PRF_QUERY 0x00001000 |
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276 | #define RES_PRF_REPLY 0x00002000 |
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277 | #define RES_PRF_INIT 0x00004000 |
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278 | #define RES_PRF_TRUNC 0x00008000 |
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279 | /* 0x00010000 */ |
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280 | |
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281 | /* Things involving an internal (static) resolver context. */ |
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282 | __BEGIN_DECLS |
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283 | extern struct __res_state *__res_state(void); |
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284 | __END_DECLS |
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285 | #define _res (*__res_state()) |
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286 | |
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287 | #ifndef __BIND_NOSTATIC |
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288 | #define fp_nquery __fp_nquery |
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289 | #define fp_query __fp_query |
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290 | #define hostalias __hostalias |
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291 | #define p_query __p_query |
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292 | #define res_close __res_close |
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293 | #define res_init __res_init |
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294 | #define res_isourserver __res_isourserver |
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295 | #define res_mkquery __res_mkquery |
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296 | #define res_opt __res_opt |
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297 | #define res_query __res_query |
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298 | #define res_querydomain __res_querydomain |
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299 | #define res_search __res_search |
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300 | #define res_send __res_send |
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301 | #define res_sendsigned __res_sendsigned |
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302 | |
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303 | __BEGIN_DECLS |
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304 | void fp_nquery(const u_char *, int, FILE *); |
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305 | void fp_query(const u_char *, FILE *); |
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306 | const char * hostalias(const char *); |
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307 | void p_query(const u_char *); |
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308 | void res_close(void); |
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309 | int res_init(void); |
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310 | int res_isourserver(const struct sockaddr_in *); |
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311 | int res_mkquery(int, const char *, int, int, const u_char *, |
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312 | int, const u_char *, u_char *, int); |
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313 | int res_opt(int, u_char *, int, int); |
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314 | int res_query(const char *, int, int, u_char *, int); |
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315 | int res_querydomain(const char *, const char *, int, int, |
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316 | u_char *, int); |
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317 | int res_search(const char *, int, int, u_char *, int); |
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318 | int res_send(const u_char *, int, u_char *, int); |
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319 | int res_sendsigned(const u_char *, int, ns_tsig_key *, |
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320 | u_char *, int); |
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321 | __END_DECLS |
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322 | #endif |
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323 | |
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324 | #if !defined(SHARED_LIBBIND) || defined(LIB) |
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325 | /* |
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326 | * If libbind is a shared object (well, DLL anyway) |
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327 | * these externs break the linker when resolv.h is |
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328 | * included by a lib client (like named) |
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329 | * Make them go away if a client is including this |
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330 | * |
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331 | */ |
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332 | extern const struct res_sym __p_key_syms[]; |
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333 | extern const struct res_sym __p_cert_syms[]; |
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334 | extern const struct res_sym __p_class_syms[]; |
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335 | extern const struct res_sym __p_type_syms[]; |
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336 | extern const struct res_sym __p_rcode_syms[]; |
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337 | #endif /* SHARED_LIBBIND */ |
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338 | |
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339 | #define b64_ntop __b64_ntop |
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340 | #define b64_pton __b64_pton |
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341 | #define dn_comp __dn_comp |
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342 | #define dn_count_labels __dn_count_labels |
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343 | #define dn_expand __dn_expand |
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344 | #define dn_skipname __dn_skipname |
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345 | #define fp_resstat __fp_resstat |
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346 | #define loc_aton __loc_aton |
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347 | #define loc_ntoa __loc_ntoa |
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348 | #define p_cdname __p_cdname |
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349 | #define p_cdnname __p_cdnname |
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350 | #define p_class __p_class |
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351 | #define p_fqname __p_fqname |
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352 | #define p_fqnname __p_fqnname |
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353 | #define p_option __p_option |
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354 | #define p_secstodate __p_secstodate |
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355 | #define p_section __p_section |
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356 | #define p_time __p_time |
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357 | #define p_type __p_type |
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358 | #define p_rcode __p_rcode |
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359 | #define p_sockun __p_sockun |
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360 | #define putlong __putlong |
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361 | #define putshort __putshort |
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362 | #define res_dnok __res_dnok |
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363 | #if 0 |
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364 | #define res_findzonecut __res_findzonecut |
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365 | #endif |
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366 | #define res_findzonecut2 __res_findzonecut2 |
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367 | #define res_hnok __res_hnok |
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368 | #define res_hostalias __res_hostalias |
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369 | #define res_mailok __res_mailok |
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370 | #define res_nameinquery __res_nameinquery |
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371 | #define res_nclose __res_nclose |
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372 | #define res_ninit __res_ninit |
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373 | #define res_nmkquery __res_nmkquery |
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374 | #define res_pquery __res_pquery |
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375 | #define res_nquery __res_nquery |
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376 | #define res_nquerydomain __res_nquerydomain |
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377 | #define res_nsearch __res_nsearch |
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378 | #define res_nsend __res_nsend |
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379 | #if 0 |
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380 | #define res_nsendsigned __res_nsendsigned |
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381 | #endif |
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382 | #define res_nisourserver __res_nisourserver |
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383 | #define res_ownok __res_ownok |
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384 | #define res_queriesmatch __res_queriesmatch |
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385 | #define res_randomid __res_randomid |
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386 | #define sym_ntop __sym_ntop |
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387 | #define sym_ntos __sym_ntos |
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388 | #define sym_ston __sym_ston |
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389 | #define res_nopt __res_nopt |
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390 | #define res_nopt_rdata __res_nopt_rdata |
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391 | #define res_ndestroy __res_ndestroy |
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392 | #define res_nametoclass __res_nametoclass |
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393 | #define res_nametotype __res_nametotype |
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394 | #define res_setservers __res_setservers |
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395 | #define res_getservers __res_getservers |
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396 | #if 0 |
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397 | #define res_buildprotolist __res_buildprotolist |
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398 | #define res_destroyprotolist __res_destroyprotolist |
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399 | #define res_destroyservicelist __res_destroyservicelist |
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400 | #define res_get_nibblesuffix __res_get_nibblesuffix |
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401 | #define res_get_nibblesuffix2 __res_get_nibblesuffix2 |
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402 | #endif |
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403 | #define res_ourserver_p __res_ourserver_p |
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404 | #if 0 |
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405 | #define res_protocolname __res_protocolname |
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406 | #define res_protocolnumber __res_protocolnumber |
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407 | #endif |
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408 | #define res_send_setqhook __res_send_setqhook |
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409 | #define res_send_setrhook __res_send_setrhook |
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410 | #if 0 |
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411 | #define res_servicename __res_servicename |
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412 | #define res_servicenumber __res_servicenumber |
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413 | #endif |
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414 | __BEGIN_DECLS |
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415 | int res_hnok(const char *); |
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416 | int res_ownok(const char *); |
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417 | int res_mailok(const char *); |
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418 | int res_dnok(const char *); |
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419 | int sym_ston(const struct res_sym *, const char *, int *); |
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420 | const char * sym_ntos(const struct res_sym *, int, int *); |
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421 | const char * sym_ntop(const struct res_sym *, int, int *); |
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422 | int b64_ntop(u_char const *, size_t, char *, size_t); |
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423 | int b64_pton(char const *, u_char *, size_t); |
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424 | int loc_aton(const char *, u_char *); |
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425 | const char * loc_ntoa(const u_char *, char *); |
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426 | int dn_skipname(const u_char *, const u_char *); |
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427 | void putlong(u_int32_t, u_char *); |
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428 | void putshort(u_int16_t, u_char *); |
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429 | #ifndef __ultrix__ |
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430 | u_int16_t _getshort(const u_char *); |
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431 | u_int32_t _getlong(const u_char *); |
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432 | #endif |
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433 | const char * p_class(int); |
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434 | const char * p_time(u_int32_t); |
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435 | const char * p_type(int); |
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436 | const char * p_rcode(int); |
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437 | const char * p_sockun(union res_sockaddr_union, char *, size_t); |
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438 | const u_char * p_cdnname(const u_char *, const u_char *, int, FILE *); |
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439 | const u_char * p_cdname(const u_char *, const u_char *, FILE *); |
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440 | const u_char * p_fqnname(const u_char *, const u_char *, int, char *, int); |
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441 | const u_char * p_fqname(const u_char *, const u_char *, FILE *); |
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442 | const char * p_option(u_long); |
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443 | char * p_secstodate(u_long); |
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444 | int dn_count_labels(const char *); |
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445 | int dn_comp(const char *, u_char *, int, u_char **, u_char **); |
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446 | int dn_expand(const u_char *, const u_char *, const u_char *, |
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447 | char *, int); |
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448 | u_int res_randomid(void); |
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449 | int res_nameinquery(const char *, int, int, const u_char *, |
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450 | const u_char *); |
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451 | int res_queriesmatch(const u_char *, const u_char *, |
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452 | const u_char *, const u_char *); |
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453 | const char * p_section(int, int); |
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454 | /* Things involving a resolver context. */ |
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455 | int res_ninit(res_state); |
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456 | int res_nisourserver(const res_state, const struct sockaddr_in *); |
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457 | void fp_resstat(const res_state, FILE *); |
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458 | void res_pquery(const res_state, const u_char *, int, FILE *); |
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459 | const char * res_hostalias(const res_state, const char *, char *, size_t); |
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460 | int res_nquery(res_state, const char *, int, int, u_char *, int); |
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461 | int res_nsearch(res_state, const char *, int, int, u_char *, int); |
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462 | int res_nquerydomain(res_state, const char *, const char *, |
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463 | int, int, u_char *, int); |
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464 | int res_nmkquery(res_state, int, const char *, int, int, |
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465 | const u_char *, int, const u_char *, |
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466 | u_char *, int); |
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467 | int res_nsend(res_state, const u_char *, int, u_char *, int); |
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468 | #if 0 |
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469 | int res_nsendsigned(res_state, const u_char *, int, |
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470 | ns_tsig_key *, u_char *, int); |
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471 | int res_findzonecut(res_state, const char *, ns_class, int, |
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472 | char *, size_t, struct in_addr *, int); |
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473 | #endif |
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474 | int res_findzonecut2(res_state, const char *, ns_class, int, |
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475 | char *, size_t, |
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476 | union res_sockaddr_union *, int); |
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477 | void res_nclose(res_state); |
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478 | int res_nopt(res_state, int, u_char *, int, int); |
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479 | int res_nopt_rdata(res_state, int, u_char *, int, u_char *, |
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480 | u_short, u_short, u_char *); |
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481 | void res_send_setqhook(res_send_qhook); |
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482 | void res_send_setrhook(res_send_rhook); |
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483 | int __res_vinit(res_state, int); |
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484 | #if 0 |
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485 | void res_destroyservicelist(void); |
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486 | const char * res_servicename(u_int16_t, const char *); |
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487 | const char * res_protocolname(int); |
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488 | void res_destroyprotolist(void); |
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489 | void res_buildprotolist(void); |
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490 | const char * res_get_nibblesuffix(res_state); |
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491 | const char * res_get_nibblesuffix2(res_state); |
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492 | #endif |
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493 | void res_ndestroy(res_state); |
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494 | u_int16_t res_nametoclass(const char *, int *); |
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495 | u_int16_t res_nametotype(const char *, int *); |
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496 | void res_setservers(res_state, const union res_sockaddr_union *, |
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497 | int); |
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498 | int res_getservers(res_state, union res_sockaddr_union *, int); |
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499 | __END_DECLS |
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500 | |
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501 | #endif /* !_RESOLV_H_ */ |
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502 | /*! \file */ |
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