| 1 |
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> |
| 2 |
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> |
| 3 |
<title>libSPF v1.0: dns.h Source File</title> |
| 4 |
<link href="doxygen.css" rel="stylesheet" type="text/css"> |
| 5 |
</head><body> |
| 6 |
<!-- Generated by Doxygen 1.3.8 --> |
| 7 |
<div class="qindex"> <form class="search" action="search.php" method="get"> |
| 8 |
<a class="qindex" href="main.html">Main Page</a> | <a class="qindex" href="annotated.html">Data Structures</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Data Fields</a> | <a class="qindex" href="globals.html">Globals</a> | <span class="search"><u>S</u>earch for <input class="search" type="text" name="query" value="" size="20" accesskey="s"/></span></form></div> |
| 9 |
<h1>dns.h</h1><a href="dns_8h.html">Go to the documentation of this file.</a><pre class="fragment"><div>00001 <span class="comment">/* libspf - Sender Policy Framework library</span> |
| 10 |
00002 <span class="comment">*</span> |
| 11 |
00003 <span class="comment">* ANSI C implementation of spf-draft-200405.txt</span> |
| 12 |
00004 <span class="comment">*</span> |
| 13 |
00005 <span class="comment">* Author: James Couzens <jcouzens@codeshare.ca></span> |
| 14 |
00006 <span class="comment">* Author: Sean Comeau <scomeau@obscurity.org></span> |
| 15 |
00007 <span class="comment">*</span> |
| 16 |
00008 <span class="comment">* FILE: dns.h</span> |
| 17 |
00009 <span class="comment">* DESC: dns functions header file</span> |
| 18 |
00010 <span class="comment">*</span> |
| 19 |
00011 <span class="comment">* License:</span> |
| 20 |
00012 <span class="comment">*</span> |
| 21 |
00013 <span class="comment">* The libspf Software License, Version 1.0</span> |
| 22 |
00014 <span class="comment">*</span> |
| 23 |
00015 <span class="comment">* Copyright (c) 2004 James Couzens & Sean Comeau All rights</span> |
| 24 |
00016 <span class="comment">* reserved.</span> |
| 25 |
00017 <span class="comment">*</span> |
| 26 |
00018 <span class="comment">* Redistribution and use in source and binary forms, with or without</span> |
| 27 |
00019 <span class="comment">* modification, are permitted provided that the following conditions</span> |
| 28 |
00020 <span class="comment">* are met:</span> |
| 29 |
00021 <span class="comment">*</span> |
| 30 |
00022 <span class="comment">* 1. Redistributions of source code must retain the above copyright</span> |
| 31 |
00023 <span class="comment">* notice, this list of conditions and the following disclaimer.</span> |
| 32 |
00024 <span class="comment">*</span> |
| 33 |
00025 <span class="comment">* 2. Redistributions in binary form must reproduce the above copyright</span> |
| 34 |
00026 <span class="comment">* notice, this list of conditions and the following disclaimer in</span> |
| 35 |
00027 <span class="comment">* the documentation and/or other materials provided with the</span> |
| 36 |
00028 <span class="comment">* distribution.</span> |
| 37 |
00029 <span class="comment">*</span> |
| 38 |
00030 <span class="comment">* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED</span> |
| 39 |
00031 <span class="comment">* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES</span> |
| 40 |
00032 <span class="comment">* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE</span> |
| 41 |
00033 <span class="comment">* DISCLAIMED. IN NO EVENT SHALL THE AUTHORS MAKING USE OF THIS LICESEN</span> |
| 42 |
00034 <span class="comment">* OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span> |
| 43 |
00035 <span class="comment">* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT</span> |
| 44 |
00036 <span class="comment">* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF</span> |
| 45 |
00037 <span class="comment">* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND</span> |
| 46 |
00038 <span class="comment">* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,</span> |
| 47 |
00039 <span class="comment">* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT</span> |
| 48 |
00040 <span class="comment">* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF</span> |
| 49 |
00041 <span class="comment">* SUCH DAMAGE.</span> |
| 50 |
00042 <span class="comment">*</span> |
| 51 |
00043 <span class="comment">*/</span> |
| 52 |
00044 |
| 53 |
00045 <span class="preprocessor">#ifndef _DNS_H</span> |
| 54 |
<a name="l00046"></a><a class="code" href="dns_8h.html#a0">00046</a> <span class="preprocessor"></span><span class="preprocessor">#define _DNS_H 1</span> |
| 55 |
00047 <span class="preprocessor"></span> |
| 56 |
00048 <span class="preprocessor">#include "../../config.h"</span> <span class="comment">/* autoconf */</span> |
| 57 |
00049 <span class="preprocessor">#include <stdio.h></span> <span class="comment">/* printf */</span> |
| 58 |
00050 <span class="preprocessor">#include <string.h></span> <span class="comment">/* snprintf strstr */</span> |
| 59 |
00051 <span class="preprocessor">#include <strings.h></span> <span class="comment">/* strcasecmp */</span> |
| 60 |
00052 <span class="preprocessor">#include <sys/socket.h></span> <span class="comment">/* inet_ functions / structs */</span> |
| 61 |
00053 <span class="preprocessor">#include <netinet/in.h></span> <span class="comment">/* inet_ functions / structs */</span> |
| 62 |
00054 <span class="preprocessor">#include <arpa/nameser.h></span> <span class="comment">/* DNS HEADER struct */</span> |
| 63 |
00055 <span class="preprocessor">#include <resolv.h></span> <span class="comment">/* dn_skipname */</span> |
| 64 |
00056 <span class="preprocessor">#include <netdb.h></span> <span class="comment">/* gethostbyname */</span> |
| 65 |
00057 <span class="preprocessor">#include <arpa/inet.h></span> <span class="comment">/* in_addr struct */</span> |
| 66 |
00058 |
| 67 |
00059 <span class="preprocessor">#ifdef _WITH_DARWINPPC</span> |
| 68 |
00060 <span class="preprocessor"></span><span class="preprocessor">#include <nameser8_compat.h></span> <span class="comment">/* T_CNAME */</span> |
| 69 |
00061 <span class="preprocessor">#endif </span><span class="comment">/* _WITH_DARWINPCC */</span> |
| 70 |
00062 |
| 71 |
00063 <span class="preprocessor">#ifdef _WITH_PTHREADS</span> |
| 72 |
00064 <span class="preprocessor"></span><span class="preprocessor">#include <pthread.h></span> <span class="comment">/* pthread_mutex_t */</span> |
| 73 |
00065 <span class="preprocessor">#endif </span><span class="comment">/* _WITH_PTHREADS */</span> |
| 74 |
00066 |
| 75 |
00067 <span class="preprocessor">#ifdef HAVE__BEGIN_DECLS</span> |
| 76 |
00068 <span class="preprocessor"></span>__BEGIN_DECLS |
| 77 |
00069 <span class="preprocessor">#else</span> |
| 78 |
00070 <span class="preprocessor"></span><span class="preprocessor"># ifdef __cplusplus</span> |
| 79 |
00071 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> { |
| 80 |
00072 <span class="preprocessor"># endif </span><span class="comment">/* __cplusplus */</span> |
| 81 |
00073 <span class="preprocessor">#endif </span><span class="comment">/* HAVE__BEGIN_DECLS */</span> |
| 82 |
00074 |
| 83 |
00075 <span class="comment">/*</span> |
| 84 |
00076 <span class="comment">* For reference purposes commented out are the constants based on</span> |
| 85 |
00077 <span class="comment">* RFC 883, RFC 1034, RFC 1035. Because we're working with IN_TXT</span> |
| 86 |
00078 <span class="comment">* records we will use a larger packet size at 65536 bytes which</span> |
| 87 |
00079 <span class="comment">* is likey to cover most circumstances.</span> |
| 88 |
00080 <span class="comment">*</span> |
| 89 |
00081 <span class="comment">* #define PACKETSZ 512 max response packet size</span> |
| 90 |
00082 <span class="comment">* #define MAXDNAME 1025 max uncompressed IN_TXT record</span> |
| 91 |
00083 <span class="comment">* #define MAXCDNAME 255 max compressed IN_TXT record</span> |
| 92 |
00084 <span class="comment">*</span> |
| 93 |
00085 <span class="comment">*/</span> |
| 94 |
00086 |
| 95 |
<a name="l00087"></a><a class="code" href="dns_8h.html#a1">00087</a> <span class="preprocessor">#define SPF_PACKETSZ 8192</span> |
| 96 |
<a name="l00088"></a><a class="code" href="dns_8h.html#a2">00088</a> <span class="preprocessor"></span><span class="preprocessor">#define SPF_MAXDNAME 1025</span> |
| 97 |
<a name="l00089"></a><a class="code" href="dns_8h.html#a3">00089</a> <span class="preprocessor"></span><span class="preprocessor">#define SPF_MAXCDNAME 255</span> |
| 98 |
00090 <span class="preprocessor"></span> |
| 99 |
00091 <span class="keyword">extern</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a6">h_errno</a>; |
| 100 |
00092 |
| 101 |
00093 <span class="preprocessor">#ifndef HPUX</span> |
| 102 |
00094 <span class="preprocessor"></span><span class="keyword">struct </span>hostent; |
| 103 |
00095 <span class="preprocessor">#endif </span><span class="comment">/* HPUX */</span> |
| 104 |
00096 |
| 105 |
00097 <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#a7">_DNS_gethostbyname_r_free</a>(<span class="keywordtype">void</span>); |
| 106 |
00098 |
| 107 |
00099 <span class="preprocessor">#ifdef _WITH_PTHREADS</span> |
| 108 |
00100 <span class="preprocessor"></span> <span class="comment">/* if we've got native gethostbyname_r (GNU extension) */</span> |
| 109 |
00101 <span class="preprocessor"> #ifdef HAVE_GETHOSTBYNAME_R</span> |
| 110 |
00102 <span class="preprocessor"></span> |
| 111 |
00103 <span class="keyword">struct </span>hostent *_DNS_GNU_gethostbyname_r(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">struct</span> hostent *result, |
| 112 |
00104 <span class="keywordtype">char</span> *buf, <span class="keywordtype">int</span> buflen, <span class="keywordtype">int</span> *h_errnop); |
| 113 |
00105 |
| 114 |
00106 <span class="preprocessor"> #define xgethostbyname(a, b, c, d, e) _DNS_GNU_gethostbyname_r((a), (b), (c), (d), (e))</span> |
| 115 |
00107 <span class="preprocessor"></span><span class="preprocessor"> #define xgethostbyname_free()</span> |
| 116 |
00108 <span class="preprocessor"></span> |
| 117 |
00109 <span class="preprocessor"> #else</span> |
| 118 |
00110 <span class="preprocessor"></span> <span class="keyword">extern</span> pthread_mutex_t <a class="code" href="dns_8c.html#a0">dns_mutex</a>; |
| 119 |
00111 |
| 120 |
00112 <span class="keyword">struct </span>hostent *_DNS_gethostbyname_r(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">struct</span> hostent *result, |
| 121 |
00113 <span class="keywordtype">char</span> *buf, <span class="keywordtype">int</span> buflen, <span class="keywordtype">int</span> *h_errnop); |
| 122 |
00114 |
| 123 |
00115 <span class="preprocessor"> #define xgethostbyname(a, b, c, d, e) _DNS_gethostbyname_r((a), (b), (c), (d), (e))</span> |
| 124 |
00116 <span class="preprocessor"></span><span class="preprocessor"> #define xgethostbyname_free() _DNS_gethostbyname_r_free()</span> |
| 125 |
00117 <span class="preprocessor"></span> |
| 126 |
00118 <span class="preprocessor"> #endif </span><span class="comment">/* HAVE_GETHOSTBYNAME_R */</span> |
| 127 |
00119 <span class="preprocessor">#else </span><span class="comment">/* _WITH_PTHREADS */</span> |
| 128 |
00120 |
| 129 |
<a name="l00121"></a><a class="code" href="dns_8h.html#a4">00121</a> <span class="preprocessor"> #define xgethostbyname(a, b, c, d, e) gethostbyname((a))</span> |
| 130 |
<a name="l00122"></a><a class="code" href="dns_8h.html#a5">00122</a> <span class="preprocessor"></span><span class="preprocessor"> #define xgethostbyname_free()</span> |
| 131 |
00123 <span class="preprocessor"></span> |
| 132 |
00124 <span class="preprocessor">#endif </span><span class="comment">/* _WITH_PTHREADS */</span> |
| 133 |
00125 |
| 134 |
00126 |
| 135 |
00127 <span class="comment">/* silence link error on SCO */</span> |
| 136 |
00128 <span class="preprocessor">#ifdef SCO</span> |
| 137 |
00129 <span class="preprocessor"></span><span class="preprocessor">#undef h_errno</span> |
| 138 |
00130 <span class="preprocessor"></span><span class="preprocessor">#define h_errno errno</span> |
| 139 |
00131 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* SCO */</span> |
| 140 |
00132 |
| 141 |
00133 <span class="keywordtype">char</span> *<a class="code" href="dns_8h.html#a8">DNS_query</a>(<a class="code" href="structpeer__info__s.html">peer_info_t</a> *, <span class="keyword">const</span> <span class="keywordtype">char</span> *, <span class="keyword">const</span> <span class="keywordtype">int</span> T_TYPE, <span class="keyword">const</span> <span class="keywordtype">char</span> *); |
| 142 |
00134 <span class="keywordtype">char</span> *<a class="code" href="dns_8h.html#a9">DNS_txt_answer</a>(int16_t, <span class="keyword">const</span> u_char *, <span class="keyword">const</span> u_char *, u_char *, |
| 143 |
00135 <span class="keywordtype">char</span> *, <span class="keywordtype">int</span> *); |
| 144 |
00136 <span class="keywordtype">char</span> *<a class="code" href="dns_8h.html#a10">DNS_mx_answer</a>(int16_t, <span class="keyword">const</span> u_char *, <span class="keyword">const</span> u_char *, u_char *, |
| 145 |
00137 <span class="keywordtype">char</span> *, <span class="keywordtype">int</span> *); |
| 146 |
00138 <a class="code" href="spf_8h.html#a35">SPF_BOOL</a> <a class="code" href="dns_8h.html#a11">DNS_ptr_answer</a>(<a class="code" href="structpeer__info__s.html">peer_info_t</a> *, int16_t, <span class="keyword">const</span> u_char *, <span class="keyword">const</span> u_char *, |
| 147 |
00139 u_char *, <span class="keywordtype">char</span> *, <span class="keyword">const</span> <span class="keywordtype">char</span> *, <span class="keywordtype">int</span> *); |
| 148 |
00140 <span class="keywordtype">char</span> *<a class="code" href="dns_8h.html#a12">DNS_cname_answer</a>(int16_t, <span class="keyword">const</span> u_char *, <span class="keyword">const</span> u_char *, |
| 149 |
00141 u_char *, <span class="keywordtype">char</span> *, <span class="keywordtype">int</span> *); |
| 150 |
00142 <a class="code" href="spf_8h.html#a35">SPF_BOOL</a> <a class="code" href="dns_8h.html#a13">DNS_check_client_reverse</a>(<a class="code" href="structpeer__info__s.html">peer_info_t</a> *); |
| 151 |
00143 |
| 152 |
00144 |
| 153 |
00145 <span class="preprocessor">#ifdef HAVE__BEGIN_DECLS</span> |
| 154 |
00146 <span class="preprocessor"></span>__END_DECLS <span class="comment">/* _DNS_H */</span> |
| 155 |
00147 <span class="preprocessor">#else</span> |
| 156 |
00148 <span class="preprocessor"></span><span class="preprocessor"># ifdef __cplusplus</span> |
| 157 |
00149 <span class="preprocessor"></span>} |
| 158 |
00150 <span class="preprocessor"># endif </span><span class="comment">/* __cplusplus */</span> |
| 159 |
00151 <span class="preprocessor">#endif </span><span class="comment">/* HAVE__BEGIN_DECLS */</span> |
| 160 |
00152 |
| 161 |
00153 <span class="preprocessor">#endif </span><span class="comment">/* _DNS_H */</span> |
| 162 |
00154 |
| 163 |
00155 <span class="comment">/* end dns.h */</span> |
| 164 |
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Thu Sep 16 18:10:46 2004 for libSPF v1.0 by |
| 165 |
<a href="http://www.doxygen.org/index.html"> |
| 166 |
<img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.8 </small></address> |
| 167 |
</body> |
| 168 |
</html> |
