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<div class="title">buffer.h</div> </div>
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<a href="buffer_8h.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"> * buffer.h -- generic memory buffer.</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (c) 2005-2008, NLnet Labs. All rights reserved.</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * See LICENSE for the license.</span>
<a name="l00007"></a>00007 <span class="comment"> *</span>
<a name="l00008"></a>00008 <span class="comment"> *</span>
<a name="l00009"></a>00009 <span class="comment"> * The buffer module implements a generic buffer. The API is based on</span>
<a name="l00010"></a>00010 <span class="comment"> * the java.nio.Buffer interface.</span>
<a name="l00011"></a>00011 <span class="comment"> */</span>
<a name="l00012"></a>00012
<a name="l00013"></a>00013 <span class="preprocessor">#ifndef LDNS_BUFFER_H</span>
<a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#define LDNS_BUFFER_H</span>
<a name="l00015"></a>00015 <span class="preprocessor"></span>
<a name="l00016"></a>00016 <span class="preprocessor">#include <assert.h></span>
<a name="l00017"></a>00017 <span class="preprocessor">#include <stdarg.h></span>
<a name="l00018"></a>00018 <span class="preprocessor">#include <string.h></span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#include <<a class="code" href="error_8h.html" title="Defines error numbers and functions to translate those to a readable string.">ldns/error.h</a>></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include <<a class="code" href="common_8h.html" title="Common definitions for LDNS.">ldns/common.h</a>></span>
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="util_8h.html">ldns/util.h</a>"</span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {
<a name="l00027"></a>00027 <span class="preprocessor">#endif</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span>
<a name="l00033"></a><a class="code" href="buffer_8h.html#af725b95a81365884b13c31a2f5d4c107">00033</a> <span class="preprocessor">#define LDNS_MIN_BUFLEN 512</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span>
<a name="l00050"></a><a class="code" href="structldns__struct__buffer.html">00050</a> <span class="keyword">struct </span><a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_struct_buffer</a>
<a name="l00051"></a>00051 {
<a name="l00053"></a><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb">00053</a> <span class="keywordtype">size_t</span> <a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>;
<a name="l00054"></a>00054
<a name="l00056"></a><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5">00056</a> <span class="keywordtype">size_t</span> <a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a>;
<a name="l00057"></a>00057
<a name="l00059"></a><a class="code" href="structldns__struct__buffer.html#a0e2253a51f3cfb0a8c8b23d288861326">00059</a> <span class="keywordtype">size_t</span> <a class="code" href="structldns__struct__buffer.html#a0e2253a51f3cfb0a8c8b23d288861326" title="The amount of data the buffer can contain.">_capacity</a>;
<a name="l00060"></a>00060
<a name="l00062"></a><a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7">00062</a> uint8_t *<a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7" title="The data contained in the buffer.">_data</a>;
<a name="l00063"></a>00063
<a name="l00065"></a><a class="code" href="structldns__struct__buffer.html#a67628b76dc8f1e174fa5667e2543bf4a">00065</a> <span class="keywordtype">unsigned</span> <a class="code" href="structldns__struct__buffer.html#a67628b76dc8f1e174fa5667e2543bf4a" title="If the buffer is fixed it cannot be resized.">_fixed</a> : 1;
<a name="l00066"></a>00066
<a name="l00070"></a><a class="code" href="structldns__struct__buffer.html#ad19d973074968b399a74f32b6402c05c">00070</a> <a class="code" href="error_8h.html#aaa6d98f86f535cf87b83b89e91f488f9">ldns_status</a> <a class="code" href="structldns__struct__buffer.html#ad19d973074968b399a74f32b6402c05c" title="The current state of the buffer.">_status</a>;
<a name="l00071"></a>00071 };
<a name="l00072"></a><a class="code" href="buffer_8h.html#a18a66fc6cf2cca871542c747e3c95385">00072</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_struct_buffer</a> <a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a>;
<a name="l00073"></a>00073
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="preprocessor">#ifdef NDEBUG</span>
<a name="l00076"></a>00076 <span class="preprocessor"></span><a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00077"></a>00077 ldns_buffer_invariant(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *<a class="code" href="common_8h.html#ade436d89899edbffbc53514d440d28b9">ATTR_UNUSED</a>(buffer))
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080 <span class="preprocessor">#else</span>
<a name="l00081"></a>00081 <span class="preprocessor"></span><a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00082"></a>00082 ldns_buffer_invariant(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 assert(buffer != NULL);
<a name="l00085"></a>00085 assert(buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> <= buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a>);
<a name="l00086"></a>00086 assert(buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a> <= buffer-><a class="code" href="structldns__struct__buffer.html#a0e2253a51f3cfb0a8c8b23d288861326" title="The amount of data the buffer can contain.">_capacity</a>);
<a name="l00087"></a>00087 assert(buffer-><a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7" title="The data contained in the buffer.">_data</a> != NULL);
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089 <span class="preprocessor">#endif</span>
<a name="l00090"></a>00090 <span class="preprocessor"></span>
<a name="l00097"></a>00097 <a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *<a class="code" href="buffer_8c.html#ac6d413e9a76bf7e7c2022f13e36b9900" title="creates a new buffer with the specified capacity.">ldns_buffer_new</a>(<span class="keywordtype">size_t</span> capacity);
<a name="l00098"></a>00098
<a name="l00108"></a>00108 <span class="keywordtype">void</span> <a class="code" href="buffer_8c.html#a7f33a4c147914739da73ccc4caa2bd7f" title="creates a buffer with the specified data.">ldns_buffer_new_frm_data</a>(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> size);
<a name="l00109"></a>00109
<a name="l00115"></a>00115 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span> ldns_buffer_clear(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00116"></a>00116 {
<a name="l00117"></a>00117 ldns_buffer_invariant(buffer);
<a name="l00118"></a>00118
<a name="l00119"></a>00119 <span class="comment">/* reset status here? */</span>
<a name="l00120"></a>00120
<a name="l00121"></a>00121 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> = 0;
<a name="l00122"></a>00122 buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a> = buffer-><a class="code" href="structldns__struct__buffer.html#a0e2253a51f3cfb0a8c8b23d288861326" title="The amount of data the buffer can contain.">_capacity</a>;
<a name="l00123"></a>00123 }
<a name="l00124"></a>00124
<a name="l00133"></a>00133 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span> ldns_buffer_flip(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00134"></a>00134 {
<a name="l00135"></a>00135 ldns_buffer_invariant(buffer);
<a name="l00136"></a>00136
<a name="l00137"></a>00137 buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a> = buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>;
<a name="l00138"></a>00138 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> = 0;
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140
<a name="l00146"></a>00146 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span> ldns_buffer_rewind(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00147"></a>00147 {
<a name="l00148"></a>00148 ldns_buffer_invariant(buffer);
<a name="l00149"></a>00149
<a name="l00150"></a>00150 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> = 0;
<a name="l00151"></a>00151 }
<a name="l00152"></a>00152
<a name="l00158"></a>00158 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">size_t</span>
<a name="l00159"></a>00159 ldns_buffer_position(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00160"></a>00160 {
<a name="l00161"></a>00161 <span class="keywordflow">return</span> buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>;
<a name="l00162"></a>00162 }
<a name="l00163"></a>00163
<a name="l00170"></a>00170 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00171"></a>00171 ldns_buffer_set_position(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> mark)
<a name="l00172"></a>00172 {
<a name="l00173"></a>00173 assert(mark <= buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a>);
<a name="l00174"></a>00174 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> = mark;
<a name="l00175"></a>00175 }
<a name="l00176"></a>00176
<a name="l00184"></a>00184 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00185"></a>00185 ldns_buffer_skip(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, ssize_t count)
<a name="l00186"></a>00186 {
<a name="l00187"></a>00187 assert(buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> + count <= buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a>);
<a name="l00188"></a>00188 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> += count;
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190
<a name="l00196"></a>00196 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">size_t</span>
<a name="l00197"></a>00197 ldns_buffer_limit(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00198"></a>00198 {
<a name="l00199"></a>00199 <span class="keywordflow">return</span> buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a>;
<a name="l00200"></a>00200 }
<a name="l00201"></a>00201
<a name="l00208"></a>00208 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00209"></a>00209 ldns_buffer_set_limit(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> limit)
<a name="l00210"></a>00210 {
<a name="l00211"></a>00211 assert(limit <= buffer-><a class="code" href="structldns__struct__buffer.html#a0e2253a51f3cfb0a8c8b23d288861326" title="The amount of data the buffer can contain.">_capacity</a>);
<a name="l00212"></a>00212 buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a> = limit;
<a name="l00213"></a>00213 <span class="keywordflow">if</span> (buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> > buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a>)
<a name="l00214"></a>00214 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> = buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a>;
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216
<a name="l00222"></a>00222 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">size_t</span>
<a name="l00223"></a>00223 ldns_buffer_capacity(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00224"></a>00224 {
<a name="l00225"></a>00225 <span class="keywordflow">return</span> buffer-><a class="code" href="structldns__struct__buffer.html#a0e2253a51f3cfb0a8c8b23d288861326" title="The amount of data the buffer can contain.">_capacity</a>;
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227
<a name="l00236"></a>00236 <span class="keywordtype">bool</span> <a class="code" href="buffer_8c.html#a4e16fc0b5f97c6a3d91533c93f8f47c2" title="changes the buffer's capacity.">ldns_buffer_set_capacity</a>(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> capacity);
<a name="l00237"></a>00237
<a name="l00248"></a>00248 <span class="keywordtype">bool</span> <a class="code" href="buffer_8c.html#a8ba0bcb3201dae8d3e563ed201decc7c" title="ensures BUFFER can contain at least AMOUNT more bytes.">ldns_buffer_reserve</a>(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> amount);
<a name="l00249"></a>00249
<a name="l00256"></a>00256 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> uint8_t *
<a name="l00257"></a>00257 ldns_buffer_at(<span class="keyword">const</span> <a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at)
<a name="l00258"></a>00258 {
<a name="l00259"></a>00259 assert(at <= buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a>);
<a name="l00260"></a>00260 <span class="keywordflow">return</span> buffer-><a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7" title="The data contained in the buffer.">_data</a> + at;
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262
<a name="l00269"></a>00269 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> uint8_t *
<a name="l00270"></a>00270 ldns_buffer_begin(<span class="keyword">const</span> <a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00271"></a>00271 {
<a name="l00272"></a>00272 <span class="keywordflow">return</span> ldns_buffer_at(buffer, 0);
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274
<a name="l00281"></a>00281 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> uint8_t *
<a name="l00282"></a>00282 ldns_buffer_end(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00283"></a>00283 {
<a name="l00284"></a>00284 <span class="keywordflow">return</span> ldns_buffer_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a>);
<a name="l00285"></a>00285 }
<a name="l00286"></a>00286
<a name="l00292"></a>00292 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> uint8_t *
<a name="l00293"></a>00293 ldns_buffer_current(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00294"></a>00294 {
<a name="l00295"></a>00295 <span class="keywordflow">return</span> ldns_buffer_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>);
<a name="l00296"></a>00296 }
<a name="l00297"></a>00297
<a name="l00305"></a>00305 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">size_t</span>
<a name="l00306"></a>00306 ldns_buffer_remaining_at(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at)
<a name="l00307"></a>00307 {
<a name="l00308"></a>00308 ldns_buffer_invariant(buffer);
<a name="l00309"></a>00309 assert(at <= buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a>);
<a name="l00310"></a>00310 <span class="keywordflow">return</span> buffer-><a class="code" href="structldns__struct__buffer.html#af6eb085e24852584020b4bc5459d4cf5" title="The read/write limit.">_limit</a> - at;
<a name="l00311"></a>00311 }
<a name="l00312"></a>00312
<a name="l00319"></a>00319 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">size_t</span>
<a name="l00320"></a>00320 ldns_buffer_remaining(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00321"></a>00321 {
<a name="l00322"></a>00322 <span class="keywordflow">return</span> ldns_buffer_remaining_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>);
<a name="l00323"></a>00323 }
<a name="l00324"></a>00324
<a name="l00334"></a>00334 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">int</span>
<a name="l00335"></a>00335 ldns_buffer_available_at(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at, <span class="keywordtype">size_t</span> count)
<a name="l00336"></a>00336 {
<a name="l00337"></a>00337 <span class="keywordflow">return</span> count <= ldns_buffer_remaining_at(buffer, at);
<a name="l00338"></a>00338 }
<a name="l00339"></a>00339
<a name="l00346"></a>00346 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">int</span>
<a name="l00347"></a>00347 ldns_buffer_available(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> count)
<a name="l00348"></a>00348 {
<a name="l00349"></a>00349 <span class="keywordflow">return</span> ldns_buffer_available_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>, count);
<a name="l00350"></a>00350 }
<a name="l00351"></a>00351
<a name="l00359"></a>00359 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00360"></a>00360 ldns_buffer_write_at(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at, <span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> count)
<a name="l00361"></a>00361 {
<a name="l00362"></a>00362 assert(ldns_buffer_available_at(buffer, at, count));
<a name="l00363"></a>00363 memcpy(buffer-><a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7" title="The data contained in the buffer.">_data</a> + at, data, count);
<a name="l00364"></a>00364 }
<a name="l00365"></a>00365
<a name="l00372"></a>00372 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00373"></a>00373 ldns_buffer_write(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> count)
<a name="l00374"></a>00374 {
<a name="l00375"></a>00375 ldns_buffer_write_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>, data, count);
<a name="l00376"></a>00376 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> += count;
<a name="l00377"></a>00377 }
<a name="l00378"></a>00378
<a name="l00385"></a>00385 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00386"></a>00386 ldns_buffer_write_string_at(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at, <span class="keyword">const</span> <span class="keywordtype">char</span> *str)
<a name="l00387"></a>00387 {
<a name="l00388"></a>00388 ldns_buffer_write_at(buffer, at, str, strlen(str));
<a name="l00389"></a>00389 }
<a name="l00390"></a>00390
<a name="l00396"></a>00396 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00397"></a>00397 ldns_buffer_write_string(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keyword">const</span> <span class="keywordtype">char</span> *str)
<a name="l00398"></a>00398 {
<a name="l00399"></a>00399 ldns_buffer_write(buffer, str, strlen(str));
<a name="l00400"></a>00400 }
<a name="l00401"></a>00401
<a name="l00408"></a>00408 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00409"></a>00409 ldns_buffer_write_u8_at(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at, uint8_t data)
<a name="l00410"></a>00410 {
<a name="l00411"></a>00411 assert(ldns_buffer_available_at(buffer, at, <span class="keyword">sizeof</span>(data)));
<a name="l00412"></a>00412 buffer-><a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7" title="The data contained in the buffer.">_data</a>[at] = data;
<a name="l00413"></a>00413 }
<a name="l00414"></a>00414
<a name="l00420"></a>00420 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00421"></a>00421 ldns_buffer_write_u8(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, uint8_t data)
<a name="l00422"></a>00422 {
<a name="l00423"></a>00423 ldns_buffer_write_u8_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>, data);
<a name="l00424"></a>00424 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> += <span class="keyword">sizeof</span>(data);
<a name="l00425"></a>00425 }
<a name="l00426"></a>00426
<a name="l00433"></a>00433 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00434"></a>00434 ldns_buffer_write_u16_at(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at, uint16_t data)
<a name="l00435"></a>00435 {
<a name="l00436"></a>00436 assert(ldns_buffer_available_at(buffer, at, <span class="keyword">sizeof</span>(data)));
<a name="l00437"></a>00437 ldns_write_uint16(buffer-><a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7" title="The data contained in the buffer.">_data</a> + at, data);
<a name="l00438"></a>00438 }
<a name="l00439"></a>00439
<a name="l00445"></a>00445 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00446"></a>00446 ldns_buffer_write_u16(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, uint16_t data)
<a name="l00447"></a>00447 {
<a name="l00448"></a>00448 ldns_buffer_write_u16_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>, data);
<a name="l00449"></a>00449 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> += <span class="keyword">sizeof</span>(data);
<a name="l00450"></a>00450 }
<a name="l00451"></a>00451
<a name="l00458"></a>00458 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00459"></a>00459 ldns_buffer_write_u32_at(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at, uint32_t data)
<a name="l00460"></a>00460 {
<a name="l00461"></a>00461 assert(ldns_buffer_available_at(buffer, at, <span class="keyword">sizeof</span>(data)));
<a name="l00462"></a>00462 ldns_write_uint32(buffer-><a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7" title="The data contained in the buffer.">_data</a> + at, data);
<a name="l00463"></a>00463 }
<a name="l00464"></a>00464
<a name="l00470"></a>00470 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00471"></a>00471 ldns_buffer_write_u32(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, uint32_t data)
<a name="l00472"></a>00472 {
<a name="l00473"></a>00473 ldns_buffer_write_u32_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>, data);
<a name="l00474"></a>00474 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> += <span class="keyword">sizeof</span>(data);
<a name="l00475"></a>00475 }
<a name="l00476"></a>00476
<a name="l00484"></a>00484 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00485"></a>00485 ldns_buffer_read_at(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at, <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> count)
<a name="l00486"></a>00486 {
<a name="l00487"></a>00487 assert(ldns_buffer_available_at(buffer, at, count));
<a name="l00488"></a>00488 memcpy(data, buffer-><a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7" title="The data contained in the buffer.">_data</a> + at, count);
<a name="l00489"></a>00489 }
<a name="l00490"></a>00490
<a name="l00497"></a>00497 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">void</span>
<a name="l00498"></a>00498 ldns_buffer_read(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> count)
<a name="l00499"></a>00499 {
<a name="l00500"></a>00500 ldns_buffer_read_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>, data, count);
<a name="l00501"></a>00501 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> += count;
<a name="l00502"></a>00502 }
<a name="l00503"></a>00503
<a name="l00510"></a>00510 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> uint8_t
<a name="l00511"></a>00511 ldns_buffer_read_u8_at(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at)
<a name="l00512"></a>00512 {
<a name="l00513"></a>00513 assert(ldns_buffer_available_at(buffer, at, <span class="keyword">sizeof</span>(uint8_t)));
<a name="l00514"></a>00514 <span class="keywordflow">return</span> buffer-><a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7" title="The data contained in the buffer.">_data</a>[at];
<a name="l00515"></a>00515 }
<a name="l00516"></a>00516
<a name="l00522"></a>00522 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> uint8_t
<a name="l00523"></a>00523 ldns_buffer_read_u8(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00524"></a>00524 {
<a name="l00525"></a>00525 uint8_t result = ldns_buffer_read_u8_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>);
<a name="l00526"></a>00526 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> += <span class="keyword">sizeof</span>(uint8_t);
<a name="l00527"></a>00527 <span class="keywordflow">return</span> result;
<a name="l00528"></a>00528 }
<a name="l00529"></a>00529
<a name="l00536"></a>00536 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> uint16_t
<a name="l00537"></a>00537 ldns_buffer_read_u16_at(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at)
<a name="l00538"></a>00538 {
<a name="l00539"></a>00539 assert(ldns_buffer_available_at(buffer, at, <span class="keyword">sizeof</span>(uint16_t)));
<a name="l00540"></a>00540 <span class="keywordflow">return</span> ldns_read_uint16(buffer-><a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7" title="The data contained in the buffer.">_data</a> + at);
<a name="l00541"></a>00541 }
<a name="l00542"></a>00542
<a name="l00548"></a>00548 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> uint16_t
<a name="l00549"></a>00549 ldns_buffer_read_u16(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00550"></a>00550 {
<a name="l00551"></a>00551 uint16_t result = ldns_buffer_read_u16_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>);
<a name="l00552"></a>00552 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> += <span class="keyword">sizeof</span>(uint16_t);
<a name="l00553"></a>00553 <span class="keywordflow">return</span> result;
<a name="l00554"></a>00554 }
<a name="l00555"></a>00555
<a name="l00562"></a>00562 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> uint32_t
<a name="l00563"></a>00563 ldns_buffer_read_u32_at(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keywordtype">size_t</span> at)
<a name="l00564"></a>00564 {
<a name="l00565"></a>00565 assert(ldns_buffer_available_at(buffer, at, <span class="keyword">sizeof</span>(uint32_t)));
<a name="l00566"></a>00566 <span class="keywordflow">return</span> ldns_read_uint32(buffer-><a class="code" href="structldns__struct__buffer.html#ae4e2615ee600913816488ec2945b85c7" title="The data contained in the buffer.">_data</a> + at);
<a name="l00567"></a>00567 }
<a name="l00568"></a>00568
<a name="l00574"></a>00574 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> uint32_t
<a name="l00575"></a>00575 ldns_buffer_read_u32(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00576"></a>00576 {
<a name="l00577"></a>00577 uint32_t result = ldns_buffer_read_u32_at(buffer, buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a>);
<a name="l00578"></a>00578 buffer-><a class="code" href="structldns__struct__buffer.html#ac62e89526e2292f430cb815620ee2ebb" title="The current position used for reading/writing.">_position</a> += <span class="keyword">sizeof</span>(uint32_t);
<a name="l00579"></a>00579 <span class="keywordflow">return</span> result;
<a name="l00580"></a>00580 }
<a name="l00581"></a>00581
<a name="l00587"></a>00587 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <a class="code" href="error_8h.html#aaa6d98f86f535cf87b83b89e91f488f9">ldns_status</a>
<a name="l00588"></a>00588 ldns_buffer_status(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00589"></a>00589 {
<a name="l00590"></a>00590 <span class="keywordflow">return</span> buffer-><a class="code" href="structldns__struct__buffer.html#ad19d973074968b399a74f32b6402c05c" title="The current state of the buffer.">_status</a>;
<a name="l00591"></a>00591 }
<a name="l00592"></a>00592
<a name="l00598"></a>00598 <a class="code" href="util_8h.html#a2eb6f9e0395b47b8d5e3eeae4fe0c116" title="splint static inline workaround">INLINE</a> <span class="keywordtype">bool</span>
<a name="l00599"></a>00599 ldns_buffer_status_ok(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer)
<a name="l00600"></a>00600 {
<a name="l00601"></a>00601 <span class="keywordflow">if</span> (buffer) {
<a name="l00602"></a>00602 <span class="keywordflow">return</span> ldns_buffer_status(buffer) == <a class="code" href="error_8h.html#a11f34802bb1624af46054952e3b853afac58492ee3fc8d23f33c79824ed08c465">LDNS_STATUS_OK</a>;
<a name="l00603"></a>00603 } <span class="keywordflow">else</span> {
<a name="l00604"></a>00604 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00605"></a>00605 }
<a name="l00606"></a>00606 }
<a name="l00607"></a>00607
<a name="l00614"></a>00614 <span class="keywordtype">int</span> <a class="code" href="buffer_8c.html#ad0bd2ed28633df90c9c99974eaae4b5a" title="prints to the buffer, increasing the capacity if required using buffer_reserve().">ldns_buffer_printf</a>(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer, <span class="keyword">const</span> <span class="keywordtype">char</span> *format, ...);
<a name="l00615"></a>00615 <span class="comment">/* ATTR_FORMAT(printf, 2, 3);*/</span>
<a name="l00616"></a>00616
<a name="l00622"></a>00622 <span class="keywordtype">void</span> <a class="code" href="buffer_8c.html#a1615da957ad5a24a8b5cc1ba2f2b7f44" title="frees the buffer.">ldns_buffer_free</a>(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer);
<a name="l00623"></a>00623
<a name="l00630"></a>00630 <span class="keywordtype">void</span> *<a class="code" href="buffer_8c.html#aedc3ca34290f5faad3cca548bb7125ab" title="Makes the buffer fixed and returns a pointer to the data.">ldns_buffer_export</a>(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a> *buffer);
<a name="l00631"></a>00631
<a name="l00638"></a>00638 <span class="keywordtype">void</span> <a class="code" href="buffer_8c.html#a8aad3e9f377019a428cfd92b0ef6d534" title="Copy contents of the other buffer to this buffer.">ldns_buffer_copy</a>(<a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a>* result, <a class="code" href="structldns__struct__buffer.html" title="implementation of buffers to ease operations">ldns_buffer</a>* from);
<a name="l00639"></a>00639
<a name="l00640"></a>00640 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00641"></a>00641 <span class="preprocessor"></span>}
<a name="l00642"></a>00642 <span class="preprocessor">#endif</span>
<a name="l00643"></a>00643 <span class="preprocessor"></span>
<a name="l00644"></a>00644 <span class="preprocessor">#endif </span><span class="comment">/* LDNS_BUFFER_H */</span>
</pre></div></div>
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