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<div class="title">util.c</div> </div>
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<a href="util_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * util.c</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * some general memory functions</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * a Net::DNS like library for C</span>
<a name="l00007"></a>00007 <span class="comment"> *</span>
<a name="l00008"></a>00008 <span class="comment"> * (c) NLnet Labs, 2004-2006</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * See the file LICENSE for the license</span>
<a name="l00011"></a>00011 <span class="comment"> */</span>
<a name="l00012"></a>00012
<a name="l00013"></a>00013 <span class="preprocessor">#include <<a class="code" href="ldns_2config_8h.html">ldns/config.h</a>></span>
<a name="l00014"></a>00014
<a name="l00015"></a>00015 <span class="preprocessor">#include <<a class="code" href="rdata_8h.html" title="Defines ldns_rdf and functions to manipulate those.">ldns/rdata.h</a>></span>
<a name="l00016"></a>00016 <span class="preprocessor">#include <<a class="code" href="rr_8h.html" title="Contains the definition of ldns_rr and functions to manipulate those.">ldns/rr.h</a>></span>
<a name="l00017"></a>00017 <span class="preprocessor">#include <<a class="code" href="util_8h.html">ldns/util.h</a>></span>
<a name="l00018"></a>00018 <span class="preprocessor">#include <strings.h></span>
<a name="l00019"></a>00019 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00020"></a>00020 <span class="preprocessor">#include <stdio.h></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include <sys/time.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <time.h></span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="preprocessor">#ifdef HAVE_SSL</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor">#include <openssl/rand.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#endif</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span>
<a name="l00028"></a>00028 <span class="comment">/* put this here tmp. for debugging */</span>
<a name="l00029"></a>00029 <span class="keywordtype">void</span>
<a name="l00030"></a><a class="code" href="util_8c.html#a0f955a99269b49c9c857d27d4e1ea29f">00030</a> <a class="code" href="util_8c.html#a0f955a99269b49c9c857d27d4e1ea29f">xprintf_rdf</a>(<a class="code" href="structldns__struct__rdf.html" title="Resource record data field.">ldns_rdf</a> *rd)
<a name="l00031"></a>00031 {
<a name="l00032"></a>00032 <span class="comment">/* assume printable string */</span>
<a name="l00033"></a>00033 fprintf(stderr, <span class="stringliteral">"size\t:%u\n"</span>, (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)<a class="code" href="rdata_8c.html#acccb19af8b71b0c8d341d17946b46e8b" title="returns the size of the rdf.">ldns_rdf_size</a>(rd));
<a name="l00034"></a>00034 fprintf(stderr, <span class="stringliteral">"type\t:%u\n"</span>, (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)<a class="code" href="rdata_8c.html#a240f7f36c145f6189df4f14ca5bc3a82" title="returns the type of the rdf.">ldns_rdf_get_type</a>(rd));
<a name="l00035"></a>00035 fprintf(stderr, <span class="stringliteral">"data\t:[%.*s]\n"</span>, (<span class="keywordtype">int</span>)<a class="code" href="rdata_8c.html#acccb19af8b71b0c8d341d17946b46e8b" title="returns the size of the rdf.">ldns_rdf_size</a>(rd),
<a name="l00036"></a>00036 (<span class="keywordtype">char</span>*)<a class="code" href="rdata_8c.html#adc126e8f5417a3c1049242f93fde3602" title="returns the data of the rdf.">ldns_rdf_data</a>(rd));
<a name="l00037"></a>00037 }
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keywordtype">void</span>
<a name="l00040"></a><a class="code" href="util_8c.html#a77646dc44a14d6353a7db138f8aaf1fe">00040</a> <a class="code" href="util_8c.html#a77646dc44a14d6353a7db138f8aaf1fe">xprintf_rr</a>(<a class="code" href="structldns__struct__rr.html" title="Resource Record.">ldns_rr</a> *rr)
<a name="l00041"></a>00041 {
<a name="l00042"></a>00042 <span class="comment">/* assume printable string */</span>
<a name="l00043"></a>00043 uint16_t count, i;
<a name="l00044"></a>00044
<a name="l00045"></a>00045 count = <a class="code" href="rr_8c.html#a6e9df34d3869e840e9aa9b9d325d96b1" title="returns the rd_count of an rr structure.">ldns_rr_rd_count</a>(rr);
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="keywordflow">for</span>(i = 0; i < count; i++) {
<a name="l00048"></a>00048 fprintf(stderr, <span class="stringliteral">"print rd %u\n"</span>, (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) i);
<a name="l00049"></a>00049 <a class="code" href="util_8c.html#a0f955a99269b49c9c857d27d4e1ea29f">xprintf_rdf</a>(rr-><a class="code" href="structldns__struct__rr.html#a5e2497a318ca7be833eca703d924c50d" title="The array of rdata's.">_rdata_fields</a>[i]);
<a name="l00050"></a>00050 }
<a name="l00051"></a>00051 }
<a name="l00052"></a>00052
<a name="l00053"></a><a class="code" href="util_8c.html#a0c88a8d947b8210d62fa58fc9d0e7e6d">00053</a> <span class="keywordtype">void</span> <a class="code" href="util_8c.html#a0c88a8d947b8210d62fa58fc9d0e7e6d">xprintf_hex</a>(uint8_t *data, <span class="keywordtype">size_t</span> len)
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 <span class="keywordtype">size_t</span> i;
<a name="l00056"></a>00056 <span class="keywordflow">for</span> (i = 0; i < len; i++) {
<a name="l00057"></a>00057 <span class="keywordflow">if</span> (i > 0 && i % 20 == 0) {
<a name="l00058"></a>00058 printf(<span class="stringliteral">"\t; %u - %u\n"</span>, (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) i - 19, (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) i);
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060 printf(<span class="stringliteral">"%02x "</span>, (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) data[i]);
<a name="l00061"></a>00061 }
<a name="l00062"></a>00062 printf(<span class="stringliteral">"\n"</span>);
<a name="l00063"></a>00063 }
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <a class="code" href="structldns__struct__lookup__table.html" title="A general purpose lookup table.">ldns_lookup_table</a> *
<a name="l00066"></a><a class="code" href="util_8c.html#af8897a478378bd8d5c7d434b71b0f4f8">00066</a> <a class="code" href="util_8c.html#af8897a478378bd8d5c7d434b71b0f4f8">ldns_lookup_by_name</a>(<a class="code" href="structldns__struct__lookup__table.html" title="A general purpose lookup table.">ldns_lookup_table</a> *table, <span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00067"></a>00067 {
<a name="l00068"></a>00068 <span class="keywordflow">while</span> (table-><a class="code" href="structldns__struct__lookup__table.html#a45da7ee10e4b7902018fba6dfae2396c">name</a> != NULL) {
<a name="l00069"></a>00069 <span class="keywordflow">if</span> (strcasecmp(name, table-><a class="code" href="structldns__struct__lookup__table.html#a45da7ee10e4b7902018fba6dfae2396c">name</a>) == 0)
<a name="l00070"></a>00070 <span class="keywordflow">return</span> table;
<a name="l00071"></a>00071 table++;
<a name="l00072"></a>00072 }
<a name="l00073"></a>00073 <span class="keywordflow">return</span> NULL;
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <a class="code" href="structldns__struct__lookup__table.html" title="A general purpose lookup table.">ldns_lookup_table</a> *
<a name="l00077"></a><a class="code" href="util_8c.html#a42a73e82a0f0bf3ee979190b9cf81957">00077</a> <a class="code" href="util_8c.html#a42a73e82a0f0bf3ee979190b9cf81957">ldns_lookup_by_id</a>(<a class="code" href="structldns__struct__lookup__table.html" title="A general purpose lookup table.">ldns_lookup_table</a> *table, <span class="keywordtype">int</span> <span class="keywordtype">id</span>)
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 <span class="keywordflow">while</span> (table-><a class="code" href="structldns__struct__lookup__table.html#a45da7ee10e4b7902018fba6dfae2396c">name</a> != NULL) {
<a name="l00080"></a>00080 <span class="keywordflow">if</span> (table-><a class="code" href="structldns__struct__lookup__table.html#aee9c62dd48ab14350f40771c92d2f8db">id</a> == <span class="keywordtype">id</span>)
<a name="l00081"></a>00081 <span class="keywordflow">return</span> table;
<a name="l00082"></a>00082 table++;
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084 <span class="keywordflow">return</span> NULL;
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keywordtype">int</span>
<a name="l00088"></a><a class="code" href="util_8h.html#ac0cfcc1f93a2aaf7fb61804cf844faef">00088</a> <a class="code" href="util_8c.html#ac0cfcc1f93a2aaf7fb61804cf844faef" title="Returns the value of the specified bit The bits are counted from left to right, so bit #0 is the left...">ldns_get_bit</a>(uint8_t bits[], <span class="keywordtype">size_t</span> index)
<a name="l00089"></a>00089 {
<a name="l00090"></a>00090 <span class="comment">/*</span>
<a name="l00091"></a>00091 <span class="comment"> * The bits are counted from left to right, so bit #0 is the</span>
<a name="l00092"></a>00092 <span class="comment"> * left most bit.</span>
<a name="l00093"></a>00093 <span class="comment"> */</span>
<a name="l00094"></a>00094 <span class="keywordflow">return</span> (<span class="keywordtype">int</span>) (bits[index / 8] & (1 << (7 - index % 8)));
<a name="l00095"></a>00095 }
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keywordtype">int</span>
<a name="l00098"></a><a class="code" href="util_8h.html#a7b16da6f889d76e6653a28038a50824c">00098</a> <a class="code" href="util_8c.html#a7b16da6f889d76e6653a28038a50824c" title="Returns the value of the specified bit The bits are counted from right to left, so bit #0 is the righ...">ldns_get_bit_r</a>(uint8_t bits[], <span class="keywordtype">size_t</span> index)
<a name="l00099"></a>00099 {
<a name="l00100"></a>00100 <span class="comment">/*</span>
<a name="l00101"></a>00101 <span class="comment"> * The bits are counted from right to left, so bit #0 is the</span>
<a name="l00102"></a>00102 <span class="comment"> * right most bit.</span>
<a name="l00103"></a>00103 <span class="comment"> */</span>
<a name="l00104"></a>00104 <span class="keywordflow">return</span> (<span class="keywordtype">int</span>) bits[index / 8] & (1 << (index % 8));
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="keywordtype">void</span>
<a name="l00108"></a><a class="code" href="util_8h.html#a2d1ca37b28b9053aedc68d9ab4c62cae">00108</a> <a class="code" href="util_8c.html#a2d1ca37b28b9053aedc68d9ab4c62cae" title="sets the specified bit in the specified byte to 1 if value is true, 0 if false The bits are counted f...">ldns_set_bit</a>(uint8_t *byte, <span class="keywordtype">int</span> bit_nr, <span class="keywordtype">bool</span> value)
<a name="l00109"></a>00109 {
<a name="l00110"></a>00110 <span class="keywordflow">if</span> (bit_nr >= 0 && bit_nr < 8) {
<a name="l00111"></a>00111 <span class="keywordflow">if</span> (value) {
<a name="l00112"></a>00112 *byte = *byte | (0x01 << bit_nr);
<a name="l00113"></a>00113 } <span class="keywordflow">else</span> {
<a name="l00114"></a>00114 *byte = *byte & ~(0x01 << bit_nr);
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118
<a name="l00119"></a>00119 <span class="keywordtype">int</span>
<a name="l00120"></a><a class="code" href="util_8h.html#a04593d78f06d288151bba4719704fa99">00120</a> <a class="code" href="util_8c.html#a04593d78f06d288151bba4719704fa99" title="Returns the int value of the given (hex) digit.">ldns_hexdigit_to_int</a>(<span class="keywordtype">char</span> ch)
<a name="l00121"></a>00121 {
<a name="l00122"></a>00122 <span class="keywordflow">switch</span> (ch) {
<a name="l00123"></a>00123 <span class="keywordflow">case</span> <span class="charliteral">'0'</span>: <span class="keywordflow">return</span> 0;
<a name="l00124"></a>00124 <span class="keywordflow">case</span> <span class="charliteral">'1'</span>: <span class="keywordflow">return</span> 1;
<a name="l00125"></a>00125 <span class="keywordflow">case</span> <span class="charliteral">'2'</span>: <span class="keywordflow">return</span> 2;
<a name="l00126"></a>00126 <span class="keywordflow">case</span> <span class="charliteral">'3'</span>: <span class="keywordflow">return</span> 3;
<a name="l00127"></a>00127 <span class="keywordflow">case</span> <span class="charliteral">'4'</span>: <span class="keywordflow">return</span> 4;
<a name="l00128"></a>00128 <span class="keywordflow">case</span> <span class="charliteral">'5'</span>: <span class="keywordflow">return</span> 5;
<a name="l00129"></a>00129 <span class="keywordflow">case</span> <span class="charliteral">'6'</span>: <span class="keywordflow">return</span> 6;
<a name="l00130"></a>00130 <span class="keywordflow">case</span> <span class="charliteral">'7'</span>: <span class="keywordflow">return</span> 7;
<a name="l00131"></a>00131 <span class="keywordflow">case</span> <span class="charliteral">'8'</span>: <span class="keywordflow">return</span> 8;
<a name="l00132"></a>00132 <span class="keywordflow">case</span> <span class="charliteral">'9'</span>: <span class="keywordflow">return</span> 9;
<a name="l00133"></a>00133 <span class="keywordflow">case</span> <span class="charliteral">'a'</span>: <span class="keywordflow">case</span> <span class="charliteral">'A'</span>: <span class="keywordflow">return</span> 10;
<a name="l00134"></a>00134 <span class="keywordflow">case</span> <span class="charliteral">'b'</span>: <span class="keywordflow">case</span> <span class="charliteral">'B'</span>: <span class="keywordflow">return</span> 11;
<a name="l00135"></a>00135 <span class="keywordflow">case</span> <span class="charliteral">'c'</span>: <span class="keywordflow">case</span> <span class="charliteral">'C'</span>: <span class="keywordflow">return</span> 12;
<a name="l00136"></a>00136 <span class="keywordflow">case</span> <span class="charliteral">'d'</span>: <span class="keywordflow">case</span> <span class="charliteral">'D'</span>: <span class="keywordflow">return</span> 13;
<a name="l00137"></a>00137 <span class="keywordflow">case</span> <span class="charliteral">'e'</span>: <span class="keywordflow">case</span> <span class="charliteral">'E'</span>: <span class="keywordflow">return</span> 14;
<a name="l00138"></a>00138 <span class="keywordflow">case</span> <span class="charliteral">'f'</span>: <span class="keywordflow">case</span> <span class="charliteral">'F'</span>: <span class="keywordflow">return</span> 15;
<a name="l00139"></a>00139 <span class="keywordflow">default</span>:
<a name="l00140"></a>00140 <span class="keywordflow">return</span> -1;
<a name="l00141"></a>00141 }
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143
<a name="l00144"></a>00144 <span class="keywordtype">char</span>
<a name="l00145"></a><a class="code" href="util_8h.html#ab11557fe9863fc3282e4a976d8cb80d1">00145</a> <a class="code" href="util_8c.html#af756fbd794c21244c76ffc1f1e70530d" title="Returns the char (hex) representation of the given int.">ldns_int_to_hexdigit</a>(<span class="keywordtype">int</span> i)
<a name="l00146"></a>00146 {
<a name="l00147"></a>00147 <span class="keywordflow">switch</span> (i) {
<a name="l00148"></a>00148 <span class="keywordflow">case</span> 0: <span class="keywordflow">return</span> <span class="charliteral">'0'</span>;
<a name="l00149"></a>00149 <span class="keywordflow">case</span> 1: <span class="keywordflow">return</span> <span class="charliteral">'1'</span>;
<a name="l00150"></a>00150 <span class="keywordflow">case</span> 2: <span class="keywordflow">return</span> <span class="charliteral">'2'</span>;
<a name="l00151"></a>00151 <span class="keywordflow">case</span> 3: <span class="keywordflow">return</span> <span class="charliteral">'3'</span>;
<a name="l00152"></a>00152 <span class="keywordflow">case</span> 4: <span class="keywordflow">return</span> <span class="charliteral">'4'</span>;
<a name="l00153"></a>00153 <span class="keywordflow">case</span> 5: <span class="keywordflow">return</span> <span class="charliteral">'5'</span>;
<a name="l00154"></a>00154 <span class="keywordflow">case</span> 6: <span class="keywordflow">return</span> <span class="charliteral">'6'</span>;
<a name="l00155"></a>00155 <span class="keywordflow">case</span> 7: <span class="keywordflow">return</span> <span class="charliteral">'7'</span>;
<a name="l00156"></a>00156 <span class="keywordflow">case</span> 8: <span class="keywordflow">return</span> <span class="charliteral">'8'</span>;
<a name="l00157"></a>00157 <span class="keywordflow">case</span> 9: <span class="keywordflow">return</span> <span class="charliteral">'9'</span>;
<a name="l00158"></a>00158 <span class="keywordflow">case</span> 10: <span class="keywordflow">return</span> <span class="charliteral">'a'</span>;
<a name="l00159"></a>00159 <span class="keywordflow">case</span> 11: <span class="keywordflow">return</span> <span class="charliteral">'b'</span>;
<a name="l00160"></a>00160 <span class="keywordflow">case</span> 12: <span class="keywordflow">return</span> <span class="charliteral">'c'</span>;
<a name="l00161"></a>00161 <span class="keywordflow">case</span> 13: <span class="keywordflow">return</span> <span class="charliteral">'d'</span>;
<a name="l00162"></a>00162 <span class="keywordflow">case</span> 14: <span class="keywordflow">return</span> <span class="charliteral">'e'</span>;
<a name="l00163"></a>00163 <span class="keywordflow">case</span> 15: <span class="keywordflow">return</span> <span class="charliteral">'f'</span>;
<a name="l00164"></a>00164 <span class="keywordflow">default</span>:
<a name="l00165"></a>00165 abort();
<a name="l00166"></a>00166 }
<a name="l00167"></a>00167 }
<a name="l00168"></a>00168
<a name="l00169"></a>00169 <span class="keywordtype">int</span>
<a name="l00170"></a><a class="code" href="util_8h.html#a22fb80e94a21a7700835b83279e9110c">00170</a> <a class="code" href="util_8c.html#a22fb80e94a21a7700835b83279e9110c" title="Converts a hex string to binary data.">ldns_hexstring_to_data</a>(uint8_t *data, <span class="keyword">const</span> <span class="keywordtype">char</span> *str)
<a name="l00171"></a>00171 {
<a name="l00172"></a>00172 <span class="keywordtype">size_t</span> i;
<a name="l00173"></a>00173
<a name="l00174"></a>00174 <span class="keywordflow">if</span> (!str || !data) {
<a name="l00175"></a>00175 <span class="keywordflow">return</span> -1;
<a name="l00176"></a>00176 }
<a name="l00177"></a>00177
<a name="l00178"></a>00178 <span class="keywordflow">if</span> (strlen(str) % 2 != 0) {
<a name="l00179"></a>00179 <span class="keywordflow">return</span> -2;
<a name="l00180"></a>00180 }
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="keywordflow">for</span> (i = 0; i < strlen(str) / 2; i++) {
<a name="l00183"></a>00183 data[i] =
<a name="l00184"></a>00184 16 * (uint8_t) <a class="code" href="util_8c.html#a04593d78f06d288151bba4719704fa99" title="Returns the int value of the given (hex) digit.">ldns_hexdigit_to_int</a>(str[i*2]) +
<a name="l00185"></a>00185 (uint8_t) <a class="code" href="util_8c.html#a04593d78f06d288151bba4719704fa99" title="Returns the int value of the given (hex) digit.">ldns_hexdigit_to_int</a>(str[i*2 + 1]);
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187
<a name="l00188"></a>00188 <span class="keywordflow">return</span> (<span class="keywordtype">int</span>) i;
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190
<a name="l00191"></a>00191 <span class="keyword">const</span> <span class="keywordtype">char</span> *
<a name="l00192"></a><a class="code" href="util_8h.html#acfa02e74a31c812d2e4ecf40915b418f">00192</a> <a class="code" href="util_8c.html#acfa02e74a31c812d2e4ecf40915b418f" title="Show the internal library version.">ldns_version</a>(<span class="keywordtype">void</span>)
<a name="l00193"></a>00193 {
<a name="l00194"></a>00194 <span class="keywordflow">return</span> (<span class="keywordtype">char</span>*)<a class="code" href="util_8h.html#a991dc2d5a646a3f66f91ba6b62c93615">LDNS_VERSION</a>;
<a name="l00195"></a>00195 }
<a name="l00196"></a>00196
<a name="l00197"></a>00197 <span class="comment">/* Number of days per month (except for February in leap years). */</span>
<a name="l00198"></a>00198 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> mdays[] = {
<a name="l00199"></a>00199 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
<a name="l00200"></a>00200 };
<a name="l00201"></a>00201
<a name="l00202"></a><a class="code" href="util_8c.html#ac1618f49b289533d8f580b56046bac72">00202</a> <span class="preprocessor">#define LDNS_MOD(x,y) (((x) % (y) < 0) ? ((x) % (y) + (y)) : ((x) % (y)))</span>
<a name="l00203"></a><a class="code" href="util_8c.html#ae2ab6f20afc9ee75e430582db23432ae">00203</a> <span class="preprocessor"></span><span class="preprocessor">#define LDNS_DIV(x,y) (((x) % (y) < 0) ? ((x) / (y) - 1 ) : ((x) / (y)))</span>
<a name="l00204"></a>00204 <span class="preprocessor"></span>
<a name="l00205"></a>00205 <span class="keyword">static</span> <span class="keywordtype">int</span>
<a name="l00206"></a>00206 is_leap_year(<span class="keywordtype">int</span> year)
<a name="l00207"></a>00207 {
<a name="l00208"></a>00208 <span class="keywordflow">return</span> <a class="code" href="util_8c.html#ac1618f49b289533d8f580b56046bac72">LDNS_MOD</a>(year, 4) == 0 && (<a class="code" href="util_8c.html#ac1618f49b289533d8f580b56046bac72">LDNS_MOD</a>(year, 100) != 0
<a name="l00209"></a>00209 || <a class="code" href="util_8c.html#ac1618f49b289533d8f580b56046bac72">LDNS_MOD</a>(year, 400) == 0);
<a name="l00210"></a>00210 }
<a name="l00211"></a>00211
<a name="l00212"></a>00212 <span class="keyword">static</span> <span class="keywordtype">int</span>
<a name="l00213"></a>00213 leap_days(<span class="keywordtype">int</span> y1, <span class="keywordtype">int</span> y2)
<a name="l00214"></a>00214 {
<a name="l00215"></a>00215 --y1;
<a name="l00216"></a>00216 --y2;
<a name="l00217"></a>00217 <span class="keywordflow">return</span> (<a class="code" href="util_8c.html#ae2ab6f20afc9ee75e430582db23432ae">LDNS_DIV</a>(y2, 4) - <a class="code" href="util_8c.html#ae2ab6f20afc9ee75e430582db23432ae">LDNS_DIV</a>(y1, 4)) -
<a name="l00218"></a>00218 (<a class="code" href="util_8c.html#ae2ab6f20afc9ee75e430582db23432ae">LDNS_DIV</a>(y2, 100) - <a class="code" href="util_8c.html#ae2ab6f20afc9ee75e430582db23432ae">LDNS_DIV</a>(y1, 100)) +
<a name="l00219"></a>00219 (<a class="code" href="util_8c.html#ae2ab6f20afc9ee75e430582db23432ae">LDNS_DIV</a>(y2, 400) - <a class="code" href="util_8c.html#ae2ab6f20afc9ee75e430582db23432ae">LDNS_DIV</a>(y1, 400));
<a name="l00220"></a>00220 }
<a name="l00221"></a>00221
<a name="l00222"></a>00222 <span class="comment">/*</span>
<a name="l00223"></a>00223 <span class="comment"> * Code adapted from Python 2.4.1 sources (Lib/calendar.py).</span>
<a name="l00224"></a>00224 <span class="comment"> */</span>
<a name="l00225"></a>00225 time_t
<a name="l00226"></a><a class="code" href="util_8h.html#ad4a71c049ae1e0b4849a64040a7360fa">00226</a> <a class="code" href="util_8c.html#ad4a71c049ae1e0b4849a64040a7360fa" title="Convert TM to seconds since epoch (midnight, January 1st, 1970).">mktime_from_utc</a>(<span class="keyword">const</span> <span class="keyword">struct</span> tm *tm)
<a name="l00227"></a>00227 {
<a name="l00228"></a>00228 <span class="keywordtype">int</span> year = 1900 + tm->tm_year;
<a name="l00229"></a>00229 time_t days = 365 * ((time_t) year - 1970) + leap_days(1970, year);
<a name="l00230"></a>00230 time_t hours;
<a name="l00231"></a>00231 time_t minutes;
<a name="l00232"></a>00232 time_t seconds;
<a name="l00233"></a>00233 <span class="keywordtype">int</span> i;
<a name="l00234"></a>00234
<a name="l00235"></a>00235 <span class="keywordflow">for</span> (i = 0; i < tm->tm_mon; ++i) {
<a name="l00236"></a>00236 days += mdays[i];
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238 <span class="keywordflow">if</span> (tm->tm_mon > 1 && is_leap_year(year)) {
<a name="l00239"></a>00239 ++days;
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241 days += tm->tm_mday - 1;
<a name="l00242"></a>00242
<a name="l00243"></a>00243 hours = days * 24 + tm->tm_hour;
<a name="l00244"></a>00244 minutes = hours * 60 + tm->tm_min;
<a name="l00245"></a>00245 seconds = minutes * 60 + tm->tm_sec;
<a name="l00246"></a>00246
<a name="l00247"></a>00247 <span class="keywordflow">return</span> seconds;
<a name="l00248"></a>00248 }
<a name="l00249"></a>00249
<a name="l00250"></a>00250 <span class="preprocessor">#if SIZEOF_TIME_T <= 4</span>
<a name="l00251"></a>00251 <span class="preprocessor"></span>
<a name="l00252"></a>00252 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00253"></a>00253 ldns_year_and_yday_from_days_since_epoch(int64_t days, <span class="keyword">struct</span> tm *result)
<a name="l00254"></a>00254 {
<a name="l00255"></a>00255 <span class="keywordtype">int</span> year = 1970;
<a name="l00256"></a>00256 <span class="keywordtype">int</span> new_year;
<a name="l00257"></a>00257
<a name="l00258"></a>00258 <span class="keywordflow">while</span> (days < 0 || days >= (int64_t) (is_leap_year(year) ? 366 : 365)) {
<a name="l00259"></a>00259 new_year = year + (int) <a class="code" href="util_8c.html#ae2ab6f20afc9ee75e430582db23432ae">LDNS_DIV</a>(days, 365);
<a name="l00260"></a>00260 days -= (new_year - year) * 365;
<a name="l00261"></a>00261 days -= leap_days(year, new_year);
<a name="l00262"></a>00262 year = new_year;
<a name="l00263"></a>00263 }
<a name="l00264"></a>00264 result->tm_year = year;
<a name="l00265"></a>00265 result->tm_yday = (int) days;
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267
<a name="l00268"></a>00268 <span class="comment">/* Number of days per month in a leap year. */</span>
<a name="l00269"></a>00269 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> leap_year_mdays[] = {
<a name="l00270"></a>00270 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
<a name="l00271"></a>00271 };
<a name="l00272"></a>00272
<a name="l00273"></a>00273 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00274"></a>00274 ldns_mon_and_mday_from_year_and_yday(<span class="keyword">struct</span> tm *result)
<a name="l00275"></a>00275 {
<a name="l00276"></a>00276 <span class="keywordtype">int</span> idays = result->tm_yday;
<a name="l00277"></a>00277 <span class="keyword">const</span> <span class="keywordtype">int</span> *mon_lengths = is_leap_year(result->tm_year) ?
<a name="l00278"></a>00278 leap_year_mdays : mdays;
<a name="l00279"></a>00279
<a name="l00280"></a>00280 result->tm_mon = 0;
<a name="l00281"></a>00281 <span class="keywordflow">while</span> (idays >= mon_lengths[result->tm_mon]) {
<a name="l00282"></a>00282 idays -= mon_lengths[result->tm_mon++];
<a name="l00283"></a>00283 }
<a name="l00284"></a>00284 result->tm_mday = idays + 1;
<a name="l00285"></a>00285 }
<a name="l00286"></a>00286
<a name="l00287"></a>00287 <span class="keyword">static</span> <span class="keywordtype">void</span>
<a name="l00288"></a>00288 ldns_wday_from_year_and_yday(<span class="keyword">struct</span> tm *result)
<a name="l00289"></a>00289 {
<a name="l00290"></a>00290 result->tm_wday = 4 <span class="comment">/* 1-1-1970 was a thursday */</span>
<a name="l00291"></a>00291 + <a class="code" href="util_8c.html#ac1618f49b289533d8f580b56046bac72">LDNS_MOD</a>((result->tm_year - 1970), 7) * <a class="code" href="util_8c.html#ac1618f49b289533d8f580b56046bac72">LDNS_MOD</a>(365, 7)
<a name="l00292"></a>00292 + leap_days(1970, result->tm_year)
<a name="l00293"></a>00293 + result->tm_yday;
<a name="l00294"></a>00294 result->tm_wday = <a class="code" href="util_8c.html#ac1618f49b289533d8f580b56046bac72">LDNS_MOD</a>(result->tm_wday, 7);
<a name="l00295"></a>00295 <span class="keywordflow">if</span> (result->tm_wday < 0) {
<a name="l00296"></a>00296 result->tm_wday += 7;
<a name="l00297"></a>00297 }
<a name="l00298"></a>00298 }
<a name="l00299"></a>00299
<a name="l00300"></a>00300 <span class="keyword">static</span> <span class="keyword">struct </span>tm *
<a name="l00301"></a>00301 ldns_gmtime64_r(int64_t clock, <span class="keyword">struct</span> tm *result)
<a name="l00302"></a>00302 {
<a name="l00303"></a>00303 result->tm_isdst = 0;
<a name="l00304"></a>00304 result->tm_sec = (int) <a class="code" href="util_8c.html#ac1618f49b289533d8f580b56046bac72">LDNS_MOD</a>(clock, 60);
<a name="l00305"></a>00305 clock = <a class="code" href="util_8c.html#ae2ab6f20afc9ee75e430582db23432ae">LDNS_DIV</a>(clock, 60);
<a name="l00306"></a>00306 result->tm_min = (int) <a class="code" href="util_8c.html#ac1618f49b289533d8f580b56046bac72">LDNS_MOD</a>(clock, 60);
<a name="l00307"></a>00307 clock = <a class="code" href="util_8c.html#ae2ab6f20afc9ee75e430582db23432ae">LDNS_DIV</a>(clock, 60);
<a name="l00308"></a>00308 result->tm_hour = (int) <a class="code" href="util_8c.html#ac1618f49b289533d8f580b56046bac72">LDNS_MOD</a>(clock, 24);
<a name="l00309"></a>00309 clock = <a class="code" href="util_8c.html#ae2ab6f20afc9ee75e430582db23432ae">LDNS_DIV</a>(clock, 24);
<a name="l00310"></a>00310
<a name="l00311"></a>00311 ldns_year_and_yday_from_days_since_epoch(clock, result);
<a name="l00312"></a>00312 ldns_mon_and_mday_from_year_and_yday(result);
<a name="l00313"></a>00313 ldns_wday_from_year_and_yday(result);
<a name="l00314"></a>00314 result->tm_year -= 1900;
<a name="l00315"></a>00315
<a name="l00316"></a>00316 <span class="keywordflow">return</span> result;
<a name="l00317"></a>00317 }
<a name="l00318"></a>00318
<a name="l00319"></a>00319 <span class="preprocessor">#endif </span><span class="comment">/* SIZEOF_TIME_T <= 4 */</span>
<a name="l00320"></a>00320
<a name="l00321"></a>00321 <span class="keyword">static</span> int64_t
<a name="l00322"></a>00322 ldns_serial_arithmitics_time(int32_t time, time_t now)
<a name="l00323"></a>00323 {
<a name="l00324"></a>00324 int32_t offset = time - (int32_t) now;
<a name="l00325"></a>00325 <span class="keywordflow">return</span> (int64_t) now + offset;
<a name="l00326"></a>00326 }
<a name="l00327"></a>00327
<a name="l00328"></a>00328
<a name="l00329"></a>00329 <span class="keyword">struct </span>tm *
<a name="l00330"></a><a class="code" href="util_8h.html#a093298fb6914785d45feb3be61597aed">00330</a> <a class="code" href="util_8c.html#a093298fb6914785d45feb3be61597aed" title="The function interprets time as the number of seconds since epoch with respect to now using serial ar...">ldns_serial_arithmitics_gmtime_r</a>(int32_t time, time_t now, <span class="keyword">struct</span> tm *result)
<a name="l00331"></a>00331 {
<a name="l00332"></a>00332 <span class="preprocessor">#if SIZEOF_TIME_T <= 4</span>
<a name="l00333"></a>00333 <span class="preprocessor"></span> int64_t secs_since_epoch = ldns_serial_arithmitics_time(time, now);
<a name="l00334"></a>00334 <span class="keywordflow">return</span> ldns_gmtime64_r(secs_since_epoch, result);
<a name="l00335"></a>00335 <span class="preprocessor">#else</span>
<a name="l00336"></a>00336 <span class="preprocessor"></span> time_t secs_since_epoch = ldns_serial_arithmitics_time(time, now);
<a name="l00337"></a>00337 <span class="keywordflow">return</span> <a class="code" href="config_8h.html#a6ef8fd14c34a80c3fee2ef2694491514">gmtime_r</a>(&secs_since_epoch, result);
<a name="l00338"></a>00338 <span class="preprocessor">#endif</span>
<a name="l00339"></a>00339 <span class="preprocessor"></span>}
<a name="l00340"></a>00340
<a name="l00352"></a>00352 <span class="keywordtype">int</span>
<a name="l00353"></a><a class="code" href="util_8h.html#aeda2f1b732e46a3e761aba81129d71e0">00353</a> <a class="code" href="util_8c.html#aeda2f1b732e46a3e761aba81129d71e0" title="Init the random source applications should call this if they need entropy data within ldns If openSSL...">ldns_init_random</a>(FILE *fd, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size)
<a name="l00354"></a>00354 {
<a name="l00355"></a>00355 <span class="comment">/* if fp is given, seed srandom with data from file</span>
<a name="l00356"></a>00356 <span class="comment"> otherwise use /dev/urandom */</span>
<a name="l00357"></a>00357 FILE *rand_f;
<a name="l00358"></a>00358 uint8_t *seed;
<a name="l00359"></a>00359 <span class="keywordtype">size_t</span> read = 0;
<a name="l00360"></a>00360 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> seed_i;
<a name="l00361"></a>00361 <span class="keyword">struct </span>timeval tv;
<a name="l00362"></a>00362
<a name="l00363"></a>00363 <span class="comment">/* we'll need at least sizeof(unsigned int) bytes for the</span>
<a name="l00364"></a>00364 <span class="comment"> standard prng seed */</span>
<a name="l00365"></a>00365 <span class="keywordflow">if</span> (size < (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) <span class="keyword">sizeof</span>(seed_i)){
<a name="l00366"></a>00366 size = (<span class="keywordtype">unsigned</span> int) <span class="keyword">sizeof</span>(seed_i);
<a name="l00367"></a>00367 }
<a name="l00368"></a>00368
<a name="l00369"></a>00369 seed = <a class="code" href="util_8h.html#aaad6949daea3c6cefd01d19300f6e21a">LDNS_XMALLOC</a>(uint8_t, size);
<a name="l00370"></a>00370 <span class="keywordflow">if</span>(!seed) {
<a name="l00371"></a>00371 <span class="keywordflow">return</span> 1;
<a name="l00372"></a>00372 }
<a name="l00373"></a>00373
<a name="l00374"></a>00374 <span class="keywordflow">if</span> (!fd) {
<a name="l00375"></a>00375 <span class="keywordflow">if</span> ((rand_f = fopen(<span class="stringliteral">"/dev/urandom"</span>, <span class="stringliteral">"r"</span>)) == NULL) {
<a name="l00376"></a>00376 <span class="comment">/* no readable /dev/urandom, try /dev/random */</span>
<a name="l00377"></a>00377 <span class="keywordflow">if</span> ((rand_f = fopen(<span class="stringliteral">"/dev/random"</span>, <span class="stringliteral">"r"</span>)) == NULL) {
<a name="l00378"></a>00378 <span class="comment">/* no readable /dev/random either, and no entropy</span>
<a name="l00379"></a>00379 <span class="comment"> source given. we'll have to improvise */</span>
<a name="l00380"></a>00380 <span class="keywordflow">for</span> (read = 0; read < size; read++) {
<a name="l00381"></a>00381 gettimeofday(&tv, NULL);
<a name="l00382"></a>00382 seed[read] = (uint8_t) (tv.tv_usec % 256);
<a name="l00383"></a>00383 }
<a name="l00384"></a>00384 } <span class="keywordflow">else</span> {
<a name="l00385"></a>00385 read = fread(seed, 1, size, rand_f);
<a name="l00386"></a>00386 }
<a name="l00387"></a>00387 } <span class="keywordflow">else</span> {
<a name="l00388"></a>00388 read = fread(seed, 1, size, rand_f);
<a name="l00389"></a>00389 }
<a name="l00390"></a>00390 } <span class="keywordflow">else</span> {
<a name="l00391"></a>00391 rand_f = fd;
<a name="l00392"></a>00392 read = fread(seed, 1, size, rand_f);
<a name="l00393"></a>00393 }
<a name="l00394"></a>00394
<a name="l00395"></a>00395 <span class="keywordflow">if</span> (read < size) {
<a name="l00396"></a>00396 <a class="code" href="util_8h.html#a5e13054aa9b3843e97514228a0bbe909">LDNS_FREE</a>(seed);
<a name="l00397"></a>00397 <span class="keywordflow">return</span> 1;
<a name="l00398"></a>00398 } <span class="keywordflow">else</span> {
<a name="l00399"></a>00399 <span class="preprocessor">#ifdef HAVE_SSL</span>
<a name="l00400"></a>00400 <span class="preprocessor"></span> <span class="comment">/* Seed the OpenSSL prng (most systems have it seeded</span>
<a name="l00401"></a>00401 <span class="comment"> automatically, in that case this call just adds entropy */</span>
<a name="l00402"></a>00402 RAND_seed(seed, (<span class="keywordtype">int</span>) size);
<a name="l00403"></a>00403 <span class="preprocessor">#else</span>
<a name="l00404"></a>00404 <span class="preprocessor"></span> <span class="comment">/* Seed the standard prng, only uses the first</span>
<a name="l00405"></a>00405 <span class="comment"> * unsigned sizeof(unsiged int) bytes found in the entropy pool</span>
<a name="l00406"></a>00406 <span class="comment"> */</span>
<a name="l00407"></a>00407 memcpy(&seed_i, seed, <span class="keyword">sizeof</span>(seed_i));
<a name="l00408"></a>00408 <a class="code" href="config_8h.html#a1845521261513c2e8bc86a20da3219b2">srandom</a>(seed_i);
<a name="l00409"></a>00409 <span class="preprocessor">#endif</span>
<a name="l00410"></a>00410 <span class="preprocessor"></span> <a class="code" href="util_8h.html#a5e13054aa9b3843e97514228a0bbe909">LDNS_FREE</a>(seed);
<a name="l00411"></a>00411 }
<a name="l00412"></a>00412
<a name="l00413"></a>00413 <span class="keywordflow">if</span> (!fd) {
<a name="l00414"></a>00414 <span class="keywordflow">if</span> (rand_f) fclose(rand_f);
<a name="l00415"></a>00415 }
<a name="l00416"></a>00416
<a name="l00417"></a>00417 <span class="keywordflow">return</span> 0;
<a name="l00418"></a>00418 }
<a name="l00419"></a>00419
<a name="l00424"></a>00424 uint16_t
<a name="l00425"></a><a class="code" href="util_8h.html#ad59e2ce028b25f1fbe8d4dbdb2a5b315">00425</a> <a class="code" href="util_8c.html#ad59e2ce028b25f1fbe8d4dbdb2a5b315" title="Get random number.">ldns_get_random</a>(<span class="keywordtype">void</span>)
<a name="l00426"></a>00426 {
<a name="l00427"></a>00427 uint16_t rid = 0;
<a name="l00428"></a>00428 <span class="preprocessor">#ifdef HAVE_SSL</span>
<a name="l00429"></a>00429 <span class="preprocessor"></span> <span class="keywordflow">if</span> (RAND_bytes((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&rid, 2) != 1) {
<a name="l00430"></a>00430 rid = (uint16_t) <a class="code" href="config_8h.html#a970311ee5504bf0e1c421be1bbd78d39">random</a>();
<a name="l00431"></a>00431 }
<a name="l00432"></a>00432 <span class="preprocessor">#else</span>
<a name="l00433"></a>00433 <span class="preprocessor"></span> rid = (uint16_t) <a class="code" href="config_8h.html#a970311ee5504bf0e1c421be1bbd78d39">random</a>();
<a name="l00434"></a>00434 <span class="preprocessor">#endif</span>
<a name="l00435"></a>00435 <span class="preprocessor"></span> <span class="keywordflow">return</span> rid;
<a name="l00436"></a>00436 }
<a name="l00437"></a>00437
<a name="l00438"></a>00438 <span class="comment">/*</span>
<a name="l00439"></a>00439 <span class="comment"> * BubbleBabble code taken from OpenSSH</span>
<a name="l00440"></a>00440 <span class="comment"> * Copyright (c) 2001 Carsten Raskgaard. All rights reserved.</span>
<a name="l00441"></a>00441 <span class="comment"> */</span>
<a name="l00442"></a>00442 <span class="keywordtype">char</span> *
<a name="l00443"></a><a class="code" href="util_8h.html#ada923722a7a97fbb7a531cf48b977b8e">00443</a> <a class="code" href="util_8c.html#ada923722a7a97fbb7a531cf48b977b8e" title="Encode data as BubbleBabble.">ldns_bubblebabble</a>(uint8_t *data, <span class="keywordtype">size_t</span> len)
<a name="l00444"></a>00444 {
<a name="l00445"></a>00445 <span class="keywordtype">char</span> vowels[] = { <span class="charliteral">'a'</span>, <span class="charliteral">'e'</span>, <span class="charliteral">'i'</span>, <span class="charliteral">'o'</span>, <span class="charliteral">'u'</span>, <span class="charliteral">'y'</span> };
<a name="l00446"></a>00446 <span class="keywordtype">char</span> consonants[] = { <span class="charliteral">'b'</span>, <span class="charliteral">'c'</span>, <span class="charliteral">'d'</span>, <span class="charliteral">'f'</span>, <span class="charliteral">'g'</span>, <span class="charliteral">'h'</span>, <span class="charliteral">'k'</span>, <span class="charliteral">'l'</span>, <span class="charliteral">'m'</span>,
<a name="l00447"></a>00447 <span class="charliteral">'n'</span>, <span class="charliteral">'p'</span>, <span class="charliteral">'r'</span>, <span class="charliteral">'s'</span>, <span class="charliteral">'t'</span>, <span class="charliteral">'v'</span>, <span class="charliteral">'z'</span>, <span class="charliteral">'x'</span> };
<a name="l00448"></a>00448 <span class="keywordtype">size_t</span> i, j = 0, rounds, seed = 1;
<a name="l00449"></a>00449 <span class="keywordtype">char</span> *retval;
<a name="l00450"></a>00450
<a name="l00451"></a>00451 rounds = (len / 2) + 1;
<a name="l00452"></a>00452 retval = <a class="code" href="util_8h.html#aaad6949daea3c6cefd01d19300f6e21a">LDNS_XMALLOC</a>(<span class="keywordtype">char</span>, rounds * 6);
<a name="l00453"></a>00453 <span class="keywordflow">if</span>(!retval) <span class="keywordflow">return</span> NULL;
<a name="l00454"></a>00454 retval[j++] = <span class="charliteral">'x'</span>;
<a name="l00455"></a>00455 <span class="keywordflow">for</span> (i = 0; i < rounds; i++) {
<a name="l00456"></a>00456 <span class="keywordtype">size_t</span> idx0, idx1, idx2, idx3, idx4;
<a name="l00457"></a>00457 <span class="keywordflow">if</span> ((i + 1 < rounds) || (len % 2 != 0)) {
<a name="l00458"></a>00458 idx0 = (((((size_t)(data[2 * i])) >> 6) & 3) +
<a name="l00459"></a>00459 seed) % 6;
<a name="l00460"></a>00460 idx1 = (((size_t)(data[2 * i])) >> 2) & 15;
<a name="l00461"></a>00461 idx2 = ((((size_t)(data[2 * i])) & 3) +
<a name="l00462"></a>00462 (seed / 6)) % 6;
<a name="l00463"></a>00463 retval[j++] = vowels[idx0];
<a name="l00464"></a>00464 retval[j++] = consonants[idx1];
<a name="l00465"></a>00465 retval[j++] = vowels[idx2];
<a name="l00466"></a>00466 <span class="keywordflow">if</span> ((i + 1) < rounds) {
<a name="l00467"></a>00467 idx3 = (((size_t)(data[(2 * i) + 1])) >> 4) & 15;
<a name="l00468"></a>00468 idx4 = (((size_t)(data[(2 * i) + 1]))) & 15;
<a name="l00469"></a>00469 retval[j++] = consonants[idx3];
<a name="l00470"></a>00470 retval[j++] = <span class="charliteral">'-'</span>;
<a name="l00471"></a>00471 retval[j++] = consonants[idx4];
<a name="l00472"></a>00472 seed = ((seed * 5) +
<a name="l00473"></a>00473 ((((<span class="keywordtype">size_t</span>)(data[2 * i])) * 7) +
<a name="l00474"></a>00474 ((<span class="keywordtype">size_t</span>)(data[(2 * i) + 1])))) % 36;
<a name="l00475"></a>00475 }
<a name="l00476"></a>00476 } <span class="keywordflow">else</span> {
<a name="l00477"></a>00477 idx0 = seed % 6;
<a name="l00478"></a>00478 idx1 = 16;
<a name="l00479"></a>00479 idx2 = seed / 6;
<a name="l00480"></a>00480 retval[j++] = vowels[idx0];
<a name="l00481"></a>00481 retval[j++] = consonants[idx1];
<a name="l00482"></a>00482 retval[j++] = vowels[idx2];
<a name="l00483"></a>00483 }
<a name="l00484"></a>00484 }
<a name="l00485"></a>00485 retval[j++] = <span class="charliteral">'x'</span>;
<a name="l00486"></a>00486 retval[j++] = <span class="charliteral">'\0'</span>;
<a name="l00487"></a>00487 <span class="keywordflow">return</span> retval;
<a name="l00488"></a>00488 }
</pre></div></div>
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