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<div class="headertitle"><div class="title">apr_random.h</div></div>
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<a href="apr__random_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/* Licensed to the Apache Software Foundation (ASF) under one or more</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * this work for additional information regarding copyright ownership.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * (the "License"); you may not use this file except in compliance with</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * the License. You may obtain a copy of the License at</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> *</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> *</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * See the License for the specific language governing permissions and</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * limitations under the License.</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> */</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#ifndef APR_RANDOM_H</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#define APR_RANDOM_H</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment"></span> </div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="comment">/**</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="comment"> * @file apr_random.h</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="comment"> * @brief APR PRNG routines</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="comment"> */</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include "<a class="code" href="apr__pools_8h.html">apr_pools.h</a>"</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include "<a class="code" href="apr__thread__proc_8h.html">apr_thread_proc.h</a>"</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#endif </span><span class="comment">/* __cplusplus */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="comment"></span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="comment">/**</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="comment"> * @defgroup apr_random PRNG Routines</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="comment"> * @ingroup APR</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="comment"> * @{</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="comment"> */</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code hl_struct" href="structapr__crypto__hash__t.html">apr_crypto_hash_t</a> <a class="code hl_struct" href="structapr__crypto__hash__t.html">apr_crypto_hash_t</a>;</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="keyword">typedef</span> <span class="keywordtype">void</span> apr_crypto_hash_init_t(<a class="code hl_struct" href="structapr__crypto__hash__t.html">apr_crypto_hash_t</a> *hash);</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="keyword">typedef</span> <span class="keywordtype">void</span> apr_crypto_hash_add_t(<a class="code hl_struct" href="structapr__crypto__hash__t.html">apr_crypto_hash_t</a> *hash, <span class="keyword">const</span> <span class="keywordtype">void</span> *data,</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> apr_size_t bytes);</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="keyword">typedef</span> <span class="keywordtype">void</span> apr_crypto_hash_finish_t(<a class="code hl_struct" href="structapr__crypto__hash__t.html">apr_crypto_hash_t</a> *hash,</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *result);</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="comment">/* FIXME: make this opaque */</span></div>
<div class="foldopen" id="foldopen00048" data-start="{" data-end="};">
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="structapr__crypto__hash__t.html"> 48</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structapr__crypto__hash__t.html">apr_crypto_hash_t</a> {</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> apr_crypto_hash_init_t *init;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> apr_crypto_hash_add_t *add;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> apr_crypto_hash_finish_t *finish;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> apr_size_t size;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keywordtype">void</span> *data;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span>};</div>
</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="comment"></span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><span class="comment">/**</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="comment"> * Allocate and initialize the SHA-256 context</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="comment"> * @param p The pool to allocate from</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="comment"> */</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"><a class="line" href="group__apr__random.html#ga17289d13a352a67d561e8331dbc94034"> 60</a></span><a class="code hl_define" href="group__apr__platform.html#gad7b91b811a172bfa802603c2fb688f98">APR_DECLARE</a>(<a class="code hl_struct" href="structapr__crypto__hash__t.html">apr_crypto_hash_t</a> *) <a class="code hl_function" href="group__apr__random.html#ga17289d13a352a67d561e8331dbc94034">apr_crypto_sha256_new</a>(<a class="code hl_typedef" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> *p);</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span><span class="comment"></span> </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="comment">/** Opaque PRNG structure. */</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"><a class="line" href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96"> 63</a></span><span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code hl_typedef" href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96">apr_random_t</a> <a class="code hl_typedef" href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96">apr_random_t</a>;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span><span class="comment"></span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span><span class="comment">/**</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span><span class="comment"> * Initialize a PRNG state</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="comment"> * @param g The PRNG state</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span><span class="comment"> * @param p The pool to allocate from</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span><span class="comment"> * @param pool_hash Pool hash functions</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><span class="comment"> * @param key_hash Key hash functions</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span><span class="comment"> * @param prng_hash PRNG hash functions</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span><span class="comment"> */</span></div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"><a class="line" href="group__apr__random.html#ga0184a90774212132f883c463811aacdc"> 73</a></span><a class="code hl_define" href="group__apr__platform.html#gad7b91b811a172bfa802603c2fb688f98">APR_DECLARE</a>(<span class="keywordtype">void</span>) <a class="code hl_function" href="group__apr__random.html#ga0184a90774212132f883c463811aacdc">apr_random_init</a>(<a class="code hl_typedef" href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96">apr_random_t</a> *g, <a class="code hl_typedef" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> *p,</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <a class="code hl_struct" href="structapr__crypto__hash__t.html">apr_crypto_hash_t</a> *pool_hash,</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <a class="code hl_struct" href="structapr__crypto__hash__t.html">apr_crypto_hash_t</a> *key_hash,</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <a class="code hl_struct" href="structapr__crypto__hash__t.html">apr_crypto_hash_t</a> *prng_hash);<span class="comment"></span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span><span class="comment">/**</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span><span class="comment"> * Allocate and initialize (apr_crypto_sha256_new) a new PRNG state.</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span><span class="comment"> * @param p The pool to allocate from</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span><span class="comment"> */</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"><a class="line" href="group__apr__random.html#gacec14929bad4da81b21b85a23fcce07c"> 81</a></span><a class="code hl_define" href="group__apr__platform.html#gad7b91b811a172bfa802603c2fb688f98">APR_DECLARE</a>(<a class="code hl_typedef" href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96">apr_random_t</a> *) <a class="code hl_function" href="group__apr__random.html#gacec14929bad4da81b21b85a23fcce07c">apr_random_standard_new</a>(<a class="code hl_typedef" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> *p);</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span><span class="comment"></span> </div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span><span class="comment">/**</span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="comment"> * Mix the randomness pools.</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span><span class="comment"> * @param g The PRNG state</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span><span class="comment"> * @param entropy_ Entropy buffer</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span><span class="comment"> * @param bytes Length of entropy_ in bytes</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span><span class="comment"> */</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"><a class="line" href="group__apr__random.html#ga8cf2875644c1dffc0c336289bd370efb"> 89</a></span><a class="code hl_define" href="group__apr__platform.html#gad7b91b811a172bfa802603c2fb688f98">APR_DECLARE</a>(<span class="keywordtype">void</span>) <a class="code hl_function" href="group__apr__random.html#ga8cf2875644c1dffc0c336289bd370efb">apr_random_add_entropy</a>(<a class="code hl_typedef" href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96">apr_random_t</a> *g,</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">const</span> <span class="keywordtype">void</span> *entropy_,</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> apr_size_t bytes);<span class="comment"></span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span><span class="comment">/**</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span><span class="comment"> * Generate cryptographically insecure random bytes.</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span><span class="comment"> * @param g The RNG state</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span><span class="comment"> * @param random Buffer to fill with random bytes</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span><span class="comment"> * @param bytes Length of buffer in bytes</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span><span class="comment"> */</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"><a class="line" href="group__apr__random.html#gab9a63359bb9543d746e6fd46933b7256"> 98</a></span><a class="code hl_define" href="group__apr__platform.html#gad7b91b811a172bfa802603c2fb688f98">APR_DECLARE</a>(<a class="code hl_typedef" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a>) <a class="code hl_function" href="group__apr__random.html#gab9a63359bb9543d746e6fd46933b7256">apr_random_insecure_bytes</a>(<a class="code hl_typedef" href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96">apr_random_t</a> *g,</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordtype">void</span> *random,</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> apr_size_t bytes);</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span><span class="comment"></span> </div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span><span class="comment">/**</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span><span class="comment"> * Generate cryptographically secure random bytes.</span></div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span><span class="comment"> * @param g The RNG state</span></div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span><span class="comment"> * @param random Buffer to fill with random bytes</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span><span class="comment"> * @param bytes Length of buffer in bytes</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span><span class="comment"> */</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"><a class="line" href="group__apr__random.html#ga9f0607e06656a1c76cc5ee878fd94f09"> 108</a></span><a class="code hl_define" href="group__apr__platform.html#gad7b91b811a172bfa802603c2fb688f98">APR_DECLARE</a>(<a class="code hl_typedef" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a>) <a class="code hl_function" href="group__apr__random.html#ga9f0607e06656a1c76cc5ee878fd94f09">apr_random_secure_bytes</a>(<a class="code hl_typedef" href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96">apr_random_t</a> *g,</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keywordtype">void</span> *random,</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> apr_size_t bytes);<span class="comment"></span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span><span class="comment">/**</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="comment"> * Ensures that E bits of conditional entropy are mixed into the PRNG</span></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span><span class="comment"> * before any further randomness is extracted.</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span><span class="comment"> * @param g The RNG state</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span><span class="comment"> */</span></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"><a class="line" href="group__apr__random.html#ga37d8d7529cf972c605ebce97c57f8825"> 116</a></span><a class="code hl_define" href="group__apr__platform.html#gad7b91b811a172bfa802603c2fb688f98">APR_DECLARE</a>(<span class="keywordtype">void</span>) <a class="code hl_function" href="group__apr__random.html#ga37d8d7529cf972c605ebce97c57f8825">apr_random_barrier</a>(<a class="code hl_typedef" href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96">apr_random_t</a> *g);</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span><span class="comment"></span> </div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span><span class="comment">/**</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span><span class="comment"> * Return APR_SUCCESS if the cryptographic PRNG has been seeded with</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span><span class="comment"> * enough data, APR_ENOTENOUGHENTROPY otherwise.</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span><span class="comment"> * @param r The RNG state</span></div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span><span class="comment"> */</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"><a class="line" href="group__apr__random.html#ga99d0c0722eeef2951e8ccede2e1451fa"> 123</a></span><a class="code hl_define" href="group__apr__platform.html#gad7b91b811a172bfa802603c2fb688f98">APR_DECLARE</a>(<a class="code hl_typedef" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a>) <a class="code hl_function" href="group__apr__random.html#ga99d0c0722eeef2951e8ccede2e1451fa">apr_random_secure_ready</a>(<a class="code hl_typedef" href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96">apr_random_t</a> *r);</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span><span class="comment"></span> </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span><span class="comment">/**</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span><span class="comment"> * Return APR_SUCCESS if the PRNG has been seeded with enough data,</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span><span class="comment"> * APR_ENOTENOUGHENTROPY otherwise.</span></div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span><span class="comment"> * @param r The PRNG state</span></div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span><span class="comment"> */</span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"><a class="line" href="group__apr__random.html#ga6465698bdc752d07abc8c515aac6e2c0"> 130</a></span><a class="code hl_define" href="group__apr__platform.html#gad7b91b811a172bfa802603c2fb688f98">APR_DECLARE</a>(<a class="code hl_typedef" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a>) <a class="code hl_function" href="group__apr__random.html#ga6465698bdc752d07abc8c515aac6e2c0">apr_random_insecure_ready</a>(<a class="code hl_typedef" href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96">apr_random_t</a> *r);</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span><span class="comment"></span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span><span class="comment">/**</span></div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span><span class="comment"> * Mix the randomness pools after forking.</span></div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span><span class="comment"> * @param proc The resulting process handle from apr_proc_fork()</span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span><span class="comment"> * @remark Call this in the child after forking to mix the randomness</span></div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span><span class="comment"> * pools. Note that its generally a bad idea to fork a process with a</span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span><span class="comment"> * real PRNG in it - better to have the PRNG externally and get the</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span><span class="comment"> * randomness from there. However, if you really must do it, then you</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span><span class="comment"> * should supply all your entropy to all the PRNGs - don't worry, they</span></div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span><span class="comment"> * won't produce the same output.</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span><span class="comment"> * @remark Note that apr_proc_fork() calls this for you, so only weird</span></div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span><span class="comment"> * applications need ever call it themselves.</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span><span class="comment"> * @internal</span></div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span><span class="comment"> */</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"><a class="line" href="group__apr__random.html#gaa1ab9b8adeeb6e37bb29def249ff9e6a"> 145</a></span><a class="code hl_define" href="group__apr__platform.html#gad7b91b811a172bfa802603c2fb688f98">APR_DECLARE</a>(<span class="keywordtype">void</span>) <a class="code hl_function" href="group__apr__random.html#gaa1ab9b8adeeb6e37bb29def249ff9e6a">apr_random_after_fork</a>(<a class="code hl_struct" href="structapr__proc__t.html">apr_proc_t</a> *proc);</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span><span class="comment"></span> </div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span><span class="comment">/** @} */</span></div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span><span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span>}</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> </div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span><span class="preprocessor">#endif </span><span class="comment">/* !APR_RANDOM_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="aapr__pools_8h_html"><div class="ttname"><a href="apr__pools_8h.html">apr_pools.h</a></div><div class="ttdoc">APR memory allocation.</div></div>
<div class="ttc" id="aapr__thread__proc_8h_html"><div class="ttname"><a href="apr__thread__proc_8h.html">apr_thread_proc.h</a></div><div class="ttdoc">APR Thread and Process Library.</div></div>
<div class="ttc" id="agroup__apr__errno_html_gaf76ee4543247e9fb3f3546203e590a6c"><div class="ttname"><a href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a></div><div class="ttdeci">int apr_status_t</div><div class="ttdef"><b>Definition</b> apr_errno.h:44</div></div>
<div class="ttc" id="agroup__apr__platform_html_gad7b91b811a172bfa802603c2fb688f98"><div class="ttname"><a href="group__apr__platform.html#gad7b91b811a172bfa802603c2fb688f98">APR_DECLARE</a></div><div class="ttdeci">#define APR_DECLARE(type)</div><div class="ttdef"><b>Definition</b> apr.h:498</div></div>
<div class="ttc" id="agroup__apr__pools_html_gaf137f28edcf9a086cd6bc36c20d7cdfb"><div class="ttname"><a href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a></div><div class="ttdeci">struct apr_pool_t apr_pool_t</div><div class="ttdef"><b>Definition</b> apr_pools.h:60</div></div>
<div class="ttc" id="agroup__apr__random_html_ga0184a90774212132f883c463811aacdc"><div class="ttname"><a href="group__apr__random.html#ga0184a90774212132f883c463811aacdc">apr_random_init</a></div><div class="ttdeci">void apr_random_init(apr_random_t *g, apr_pool_t *p, apr_crypto_hash_t *pool_hash, apr_crypto_hash_t *key_hash, apr_crypto_hash_t *prng_hash)</div></div>
<div class="ttc" id="agroup__apr__random_html_ga17289d13a352a67d561e8331dbc94034"><div class="ttname"><a href="group__apr__random.html#ga17289d13a352a67d561e8331dbc94034">apr_crypto_sha256_new</a></div><div class="ttdeci">apr_crypto_hash_t * apr_crypto_sha256_new(apr_pool_t *p)</div></div>
<div class="ttc" id="agroup__apr__random_html_ga33073741e56b1bafe52ba58cefcbbf96"><div class="ttname"><a href="group__apr__random.html#ga33073741e56b1bafe52ba58cefcbbf96">apr_random_t</a></div><div class="ttdeci">struct apr_random_t apr_random_t</div><div class="ttdef"><b>Definition</b> apr_random.h:63</div></div>
<div class="ttc" id="agroup__apr__random_html_ga37d8d7529cf972c605ebce97c57f8825"><div class="ttname"><a href="group__apr__random.html#ga37d8d7529cf972c605ebce97c57f8825">apr_random_barrier</a></div><div class="ttdeci">void apr_random_barrier(apr_random_t *g)</div></div>
<div class="ttc" id="agroup__apr__random_html_ga6465698bdc752d07abc8c515aac6e2c0"><div class="ttname"><a href="group__apr__random.html#ga6465698bdc752d07abc8c515aac6e2c0">apr_random_insecure_ready</a></div><div class="ttdeci">apr_status_t apr_random_insecure_ready(apr_random_t *r)</div></div>
<div class="ttc" id="agroup__apr__random_html_ga8cf2875644c1dffc0c336289bd370efb"><div class="ttname"><a href="group__apr__random.html#ga8cf2875644c1dffc0c336289bd370efb">apr_random_add_entropy</a></div><div class="ttdeci">void apr_random_add_entropy(apr_random_t *g, const void *entropy_, apr_size_t bytes)</div></div>
<div class="ttc" id="agroup__apr__random_html_ga99d0c0722eeef2951e8ccede2e1451fa"><div class="ttname"><a href="group__apr__random.html#ga99d0c0722eeef2951e8ccede2e1451fa">apr_random_secure_ready</a></div><div class="ttdeci">apr_status_t apr_random_secure_ready(apr_random_t *r)</div></div>
<div class="ttc" id="agroup__apr__random_html_ga9f0607e06656a1c76cc5ee878fd94f09"><div class="ttname"><a href="group__apr__random.html#ga9f0607e06656a1c76cc5ee878fd94f09">apr_random_secure_bytes</a></div><div class="ttdeci">apr_status_t apr_random_secure_bytes(apr_random_t *g, void *random, apr_size_t bytes)</div></div>
<div class="ttc" id="agroup__apr__random_html_gaa1ab9b8adeeb6e37bb29def249ff9e6a"><div class="ttname"><a href="group__apr__random.html#gaa1ab9b8adeeb6e37bb29def249ff9e6a">apr_random_after_fork</a></div><div class="ttdeci">void apr_random_after_fork(apr_proc_t *proc)</div></div>
<div class="ttc" id="agroup__apr__random_html_gab9a63359bb9543d746e6fd46933b7256"><div class="ttname"><a href="group__apr__random.html#gab9a63359bb9543d746e6fd46933b7256">apr_random_insecure_bytes</a></div><div class="ttdeci">apr_status_t apr_random_insecure_bytes(apr_random_t *g, void *random, apr_size_t bytes)</div></div>
<div class="ttc" id="agroup__apr__random_html_gacec14929bad4da81b21b85a23fcce07c"><div class="ttname"><a href="group__apr__random.html#gacec14929bad4da81b21b85a23fcce07c">apr_random_standard_new</a></div><div class="ttdeci">apr_random_t * apr_random_standard_new(apr_pool_t *p)</div></div>
<div class="ttc" id="astructapr__crypto__hash__t_html"><div class="ttname"><a href="structapr__crypto__hash__t.html">apr_crypto_hash_t</a></div><div class="ttdef"><b>Definition</b> apr_random.h:48</div></div>
<div class="ttc" id="astructapr__proc__t_html"><div class="ttname"><a href="structapr__proc__t.html">apr_proc_t</a></div><div class="ttdef"><b>Definition</b> apr_thread_proc.h:134</div></div>
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