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<title>libSPF v1.0: dns.h Source File</title> |
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<!-- Generated by Doxygen 1.3.8 --> |
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<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> |
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<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> |
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00002 <span class="comment">*</span> |
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00003 <span class="comment">* ANSI C implementation of spf-draft-200405.txt</span> |
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00004 <span class="comment">*</span> |
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00005 <span class="comment">* Author: James Couzens <jcouzens@codeshare.ca></span> |
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00006 <span class="comment">* Author: Sean Comeau <scomeau@obscurity.org></span> |
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00007 <span class="comment">*</span> |
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00008 <span class="comment">* FILE: dns.h</span> |
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00009 <span class="comment">* DESC: dns functions header file</span> |
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00010 <span class="comment">*</span> |
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00011 <span class="comment">* License:</span> |
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00012 <span class="comment">*</span> |
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00013 <span class="comment">* The libspf Software License, Version 1.0</span> |
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00014 <span class="comment">*</span> |
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00015 <span class="comment">* Copyright (c) 2004 James Couzens & Sean Comeau All rights</span> |
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00016 <span class="comment">* reserved.</span> |
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00017 <span class="comment">*</span> |
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00018 <span class="comment">* Redistribution and use in source and binary forms, with or without</span> |
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00019 <span class="comment">* modification, are permitted provided that the following conditions</span> |
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00020 <span class="comment">* are met:</span> |
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00021 <span class="comment">*</span> |
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00022 <span class="comment">* 1. Redistributions of source code must retain the above copyright</span> |
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00023 <span class="comment">* notice, this list of conditions and the following disclaimer.</span> |
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00024 <span class="comment">*</span> |
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00025 <span class="comment">* 2. Redistributions in binary form must reproduce the above copyright</span> |
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00026 <span class="comment">* notice, this list of conditions and the following disclaimer in</span> |
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00027 <span class="comment">* the documentation and/or other materials provided with the</span> |
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00028 <span class="comment">* distribution.</span> |
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00029 <span class="comment">*</span> |
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00030 <span class="comment">* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED</span> |
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00031 <span class="comment">* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES</span> |
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00032 <span class="comment">* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE</span> |
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00033 <span class="comment">* DISCLAIMED. IN NO EVENT SHALL THE AUTHORS MAKING USE OF THIS LICESEN</span> |
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00034 <span class="comment">* OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span> |
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00035 <span class="comment">* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT</span> |
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00036 <span class="comment">* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF</span> |
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00037 <span class="comment">* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND</span> |
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00038 <span class="comment">* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,</span> |
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00039 <span class="comment">* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT</span> |
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00040 <span class="comment">* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF</span> |
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00041 <span class="comment">* SUCH DAMAGE.</span> |
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00042 <span class="comment">*</span> |
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00043 <span class="comment">*/</span> |
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00044 |
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00045 <span class="preprocessor">#ifndef _DNS_H</span> |
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<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> |
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00047 <span class="preprocessor"></span> |
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00048 <span class="preprocessor">#include "../../config.h"</span> <span class="comment">/* autoconf */</span> |
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00049 <span class="preprocessor">#include <stdio.h></span> <span class="comment">/* printf */</span> |
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00050 <span class="preprocessor">#include <string.h></span> <span class="comment">/* snprintf strstr */</span> |
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00051 <span class="preprocessor">#include <strings.h></span> <span class="comment">/* strcasecmp */</span> |
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00052 <span class="preprocessor">#include <sys/socket.h></span> <span class="comment">/* inet_ functions / structs */</span> |
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00053 <span class="preprocessor">#include <netinet/in.h></span> <span class="comment">/* inet_ functions / structs */</span> |
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00054 <span class="preprocessor">#include <arpa/nameser.h></span> <span class="comment">/* DNS HEADER struct */</span> |
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00055 <span class="preprocessor">#include <resolv.h></span> <span class="comment">/* dn_skipname */</span> |
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00056 <span class="preprocessor">#include <netdb.h></span> <span class="comment">/* gethostbyname */</span> |
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00057 <span class="preprocessor">#include <arpa/inet.h></span> <span class="comment">/* in_addr struct */</span> |
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00058 |
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00059 <span class="preprocessor">#ifdef _WITH_DARWINPPC</span> |
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00060 <span class="preprocessor"></span><span class="preprocessor">#include <nameser8_compat.h></span> <span class="comment">/* T_CNAME */</span> |
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00061 <span class="preprocessor">#endif </span><span class="comment">/* _WITH_DARWINPCC */</span> |
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00062 |
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00063 <span class="preprocessor">#ifdef _WITH_PTHREADS</span> |
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00064 <span class="preprocessor"></span><span class="preprocessor">#include <pthread.h></span> <span class="comment">/* pthread_mutex_t */</span> |
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00065 <span class="preprocessor">#endif </span><span class="comment">/* _WITH_PTHREADS */</span> |
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00066 |
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00067 <span class="preprocessor">#ifdef HAVE__BEGIN_DECLS</span> |
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00068 <span class="preprocessor"></span>__BEGIN_DECLS |
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00069 <span class="preprocessor">#else</span> |
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00070 <span class="preprocessor"></span><span class="preprocessor"># ifdef __cplusplus</span> |
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00071 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> { |
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00072 <span class="preprocessor"># endif </span><span class="comment">/* __cplusplus */</span> |
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00073 <span class="preprocessor">#endif </span><span class="comment">/* HAVE__BEGIN_DECLS */</span> |
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00074 |
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00075 <span class="comment">/*</span> |
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00076 <span class="comment">* For reference purposes commented out are the constants based on</span> |
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00077 <span class="comment">* RFC 883, RFC 1034, RFC 1035. Because we're working with IN_TXT</span> |
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00078 <span class="comment">* records we will use a larger packet size at 65536 bytes which</span> |
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00079 <span class="comment">* is likey to cover most circumstances.</span> |
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00080 <span class="comment">*</span> |
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00081 <span class="comment">* #define PACKETSZ 512 max response packet size</span> |
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00082 <span class="comment">* #define MAXDNAME 1025 max uncompressed IN_TXT record</span> |
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00083 <span class="comment">* #define MAXCDNAME 255 max compressed IN_TXT record</span> |
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00084 <span class="comment">*</span> |
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00085 <span class="comment">*/</span> |
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00086 |
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<a name="l00087"></a><a class="code" href="dns_8h.html#a1">00087</a> <span class="preprocessor">#define SPF_PACKETSZ 8192</span> |
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<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> |
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<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> |
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00090 <span class="preprocessor"></span> |
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00091 <span class="keyword">extern</span> <span class="keywordtype">int</span> <a class="code" href="dns_8h.html#a6">h_errno</a>; |
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00092 |
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00093 <span class="preprocessor">#ifndef HPUX</span> |
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00094 <span class="preprocessor"></span><span class="keyword">struct </span>hostent; |
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00095 <span class="preprocessor">#endif </span><span class="comment">/* HPUX */</span> |
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00096 |
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00097 <span class="keywordtype">void</span> <a class="code" href="dns_8h.html#a7">_DNS_gethostbyname_r_free</a>(<span class="keywordtype">void</span>); |
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00098 |
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00099 <span class="preprocessor">#ifdef _WITH_PTHREADS</span> |
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00100 <span class="preprocessor"></span> <span class="comment">/* if we've got native gethostbyname_r (GNU extension) */</span> |
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00101 <span class="preprocessor"> #ifdef HAVE_GETHOSTBYNAME_R</span> |
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00102 <span class="preprocessor"></span> |
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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, |
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00104 <span class="keywordtype">char</span> *buf, <span class="keywordtype">int</span> buflen, <span class="keywordtype">int</span> *h_errnop); |
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00105 |
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00106 <span class="preprocessor"> #define xgethostbyname(a, b, c, d, e) _DNS_GNU_gethostbyname_r((a), (b), (c), (d), (e))</span> |
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00107 <span class="preprocessor"></span><span class="preprocessor"> #define xgethostbyname_free()</span> |
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00108 <span class="preprocessor"></span> |
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00109 <span class="preprocessor"> #else</span> |
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00110 <span class="preprocessor"></span> <span class="keyword">extern</span> pthread_mutex_t <a class="code" href="dns_8c.html#a0">dns_mutex</a>; |
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00111 |
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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, |
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00113 <span class="keywordtype">char</span> *buf, <span class="keywordtype">int</span> buflen, <span class="keywordtype">int</span> *h_errnop); |
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00114 |
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00115 <span class="preprocessor"> #define xgethostbyname(a, b, c, d, e) _DNS_gethostbyname_r((a), (b), (c), (d), (e))</span> |
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00116 <span class="preprocessor"></span><span class="preprocessor"> #define xgethostbyname_free() _DNS_gethostbyname_r_free()</span> |
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00117 <span class="preprocessor"></span> |
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00118 <span class="preprocessor"> #endif </span><span class="comment">/* HAVE_GETHOSTBYNAME_R */</span> |
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00119 <span class="preprocessor">#else </span><span class="comment">/* _WITH_PTHREADS */</span> |
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00120 |
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<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> |
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<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> |
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00123 <span class="preprocessor"></span> |
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00124 <span class="preprocessor">#endif </span><span class="comment">/* _WITH_PTHREADS */</span> |
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00125 |
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00126 |
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00127 <span class="comment">/* silence link error on SCO */</span> |
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00128 <span class="preprocessor">#ifdef SCO</span> |
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00129 <span class="preprocessor"></span><span class="preprocessor">#undef h_errno</span> |
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00130 <span class="preprocessor"></span><span class="preprocessor">#define h_errno errno</span> |
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00131 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* SCO */</span> |
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00132 |
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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> *); |
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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 *, |
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00135 <span class="keywordtype">char</span> *, <span class="keywordtype">int</span> *); |
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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 *, |
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00137 <span class="keywordtype">char</span> *, <span class="keywordtype">int</span> *); |
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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 *, |
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00139 u_char *, <span class="keywordtype">char</span> *, <span class="keyword">const</span> <span class="keywordtype">char</span> *, <span class="keywordtype">int</span> *); |
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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 *, |
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00141 u_char *, <span class="keywordtype">char</span> *, <span class="keywordtype">int</span> *); |
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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> *); |
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00143 |
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00144 |
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00145 <span class="preprocessor">#ifdef HAVE__BEGIN_DECLS</span> |
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00146 <span class="preprocessor"></span>__END_DECLS <span class="comment">/* _DNS_H */</span> |
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00147 <span class="preprocessor">#else</span> |
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00148 <span class="preprocessor"></span><span class="preprocessor"># ifdef __cplusplus</span> |
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00149 <span class="preprocessor"></span>} |
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00150 <span class="preprocessor"># endif </span><span class="comment">/* __cplusplus */</span> |
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00151 <span class="preprocessor">#endif </span><span class="comment">/* HAVE__BEGIN_DECLS */</span> |
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00152 |
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00153 <span class="preprocessor">#endif </span><span class="comment">/* _DNS_H */</span> |
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00154 |
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00155 <span class="comment">/* end dns.h */</span> |
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</div></pre><hr size="1"><address style="align: right;"><small>Generated on Thu Sep 16 18:10:46 2004 for libSPF v1.0 by |
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<a href="http://www.doxygen.org/index.html"> |
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<img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.8 </small></address> |
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</body> |
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