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+ <section id='main' class="content source"><pre class="line-numbers"><span id="1"> 1</span>
+<span id="2"> 2</span>
+<span id="3"> 3</span>
+<span id="4"> 4</span>
+<span id="5"> 5</span>
+<span id="6"> 6</span>
+<span id="7"> 7</span>
+<span id="8"> 8</span>
+<span id="9"> 9</span>
+<span id="10"> 10</span>
+<span id="11"> 11</span>
+<span id="12"> 12</span>
+<span id="13"> 13</span>
+<span id="14"> 14</span>
+<span id="15"> 15</span>
+<span id="16"> 16</span>
+<span id="17"> 17</span>
+<span id="18"> 18</span>
+<span id="19"> 19</span>
+<span id="20"> 20</span>
+<span id="21"> 21</span>
+<span id="22"> 22</span>
+<span id="23"> 23</span>
+<span id="24"> 24</span>
+<span id="25"> 25</span>
+<span id="26"> 26</span>
+<span id="27"> 27</span>
+<span id="28"> 28</span>
+<span id="29"> 29</span>
+<span id="30"> 30</span>
+<span id="31"> 31</span>
+<span id="32"> 32</span>
+<span id="33"> 33</span>
+<span id="34"> 34</span>
+<span id="35"> 35</span>
+<span id="36"> 36</span>
+<span id="37"> 37</span>
+<span id="38"> 38</span>
+<span id="39"> 39</span>
+<span id="40"> 40</span>
+<span id="41"> 41</span>
+<span id="42"> 42</span>
+<span id="43"> 43</span>
+<span id="44"> 44</span>
+<span id="45"> 45</span>
+<span id="46"> 46</span>
+<span id="47"> 47</span>
+<span id="48"> 48</span>
+<span id="49"> 49</span>
+<span id="50"> 50</span>
+<span id="51"> 51</span>
+<span id="52"> 52</span>
+<span id="53"> 53</span>
+<span id="54"> 54</span>
+<span id="55"> 55</span>
+<span id="56"> 56</span>
+<span id="57"> 57</span>
+<span id="58"> 58</span>
+<span id="59"> 59</span>
+<span id="60"> 60</span>
+<span id="61"> 61</span>
+<span id="62"> 62</span>
+<span id="63"> 63</span>
+<span id="64"> 64</span>
+<span id="65"> 65</span>
+<span id="66"> 66</span>
+<span id="67"> 67</span>
+<span id="68"> 68</span>
+<span id="69"> 69</span>
+<span id="70"> 70</span>
+<span id="71"> 71</span>
+<span id="72"> 72</span>
+<span id="73"> 73</span>
+<span id="74"> 74</span>
+<span id="75"> 75</span>
+<span id="76"> 76</span>
+<span id="77"> 77</span>
+<span id="78"> 78</span>
+<span id="79"> 79</span>
+<span id="80"> 80</span>
+<span id="81"> 81</span>
+<span id="82"> 82</span>
+<span id="83"> 83</span>
+<span id="84"> 84</span>
+<span id="85"> 85</span>
+<span id="86"> 86</span>
+<span id="87"> 87</span>
+<span id="88"> 88</span>
+<span id="89"> 89</span>
+<span id="90"> 90</span>
+<span id="91"> 91</span>
+<span id="92"> 92</span>
+<span id="93"> 93</span>
+<span id="94"> 94</span>
+<span id="95"> 95</span>
+<span id="96"> 96</span>
+<span id="97"> 97</span>
+<span id="98"> 98</span>
+<span id="99"> 99</span>
+<span id="100">100</span>
+<span id="101">101</span>
+<span id="102">102</span>
+<span id="103">103</span>
+<span id="104">104</span>
+<span id="105">105</span>
+<span id="106">106</span>
+</pre><pre class='rust '>
+<span class='kw'>use</span> <span class='ident'>libc</span>::{<span class='ident'>c_void</span>, <span class='ident'>c_int</span>};
+<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>io</span>;
+<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>io</span>::<span class='ident'>prelude</span>::<span class='op'>*</span>;
+<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>ptr</span>;
+<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>cmp</span>;
+
+<span class='kw'>use</span> <span class='ident'>ffi</span>;
+<span class='kw'>use</span> <span class='ident'>ssl</span>::<span class='ident'>error</span>::{<span class='ident'>SslError</span>};
+
+<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>MemBio</span> {
+ <span class='ident'>bio</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>BIO</span>,
+ <span class='ident'>owned</span>: <span class='ident'>bool</span>
+}
+
+<span class='kw'>impl</span> <span class='ident'>Drop</span> <span class='kw'>for</span> <span class='ident'>MemBio</span> {
+ <span class='kw'>fn</span> <span class='ident'>drop</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
+ <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>owned</span> {
+ <span class='kw'>unsafe</span> {
+ <span class='ident'>ffi</span>::<span class='ident'>BIO_free_all</span>(<span class='self'>self</span>.<span class='ident'>bio</span>);
+ }
+ }
+ }
+}
+
+<span class='kw'>impl</span> <span class='ident'>MemBio</span> {
+ <span class='doccomment'>/// Creates a new owned memory based BIO</span>
+ <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span>() <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>MemBio</span>, <span class='ident'>SslError</span><span class='op'>&gt;</span> {
+ <span class='ident'>ffi</span>::<span class='ident'>init</span>();
+
+ <span class='kw'>let</span> <span class='ident'>bio</span> <span class='op'>=</span> <span class='kw'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>BIO_new</span>(<span class='ident'>ffi</span>::<span class='ident'>BIO_s_mem</span>()) };
+ <span class='macro'>try_ssl_null</span><span class='macro'>!</span>(<span class='ident'>bio</span>);
+
+ <span class='prelude-val'>Ok</span>(<span class='ident'>MemBio</span> {
+ <span class='ident'>bio</span>: <span class='ident'>bio</span>,
+ <span class='ident'>owned</span>: <span class='boolval'>true</span>
+ })
+ }
+
+ <span class='doccomment'>/// Returns a &quot;borrow&quot;, i.e. it has no ownership</span>
+ <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>borrowed</span>(<span class='ident'>bio</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>BIO</span>) <span class='op'>-&gt;</span> <span class='ident'>MemBio</span> {
+ <span class='ident'>MemBio</span> {
+ <span class='ident'>bio</span>: <span class='ident'>bio</span>,
+ <span class='ident'>owned</span>: <span class='boolval'>false</span>
+ }
+ }
+
+ <span class='doccomment'>/// Consumes current bio and returns wrapped value</span>
+ <span class='doccomment'>/// Note that data ownership is lost and</span>
+ <span class='doccomment'>/// should be managed manually</span>
+ <span class='kw'>pub</span> <span class='kw'>unsafe</span> <span class='kw'>fn</span> <span class='ident'>unwrap</span>(<span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>BIO</span> {
+ <span class='self'>self</span>.<span class='ident'>owned</span> <span class='op'>=</span> <span class='boolval'>false</span>;
+ <span class='self'>self</span>.<span class='ident'>bio</span>
+ }
+
+ <span class='doccomment'>/// Temporarily gets wrapped value</span>
+ <span class='kw'>pub</span> <span class='kw'>unsafe</span> <span class='kw'>fn</span> <span class='ident'>get_handle</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>BIO</span> {
+ <span class='self'>self</span>.<span class='ident'>bio</span>
+ }
+
+ <span class='doccomment'>/// Sets the BIO&#39;s EOF state.</span>
+ <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>set_eof</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>eof</span>: <span class='ident'>bool</span>) {
+ <span class='kw'>let</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='kw'>if</span> <span class='ident'>eof</span> { <span class='number'>0</span> } <span class='kw'>else</span> { <span class='op'>-</span><span class='number'>1</span> };
+ <span class='kw'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>BIO_set_mem_eof_return</span>(<span class='self'>self</span>.<span class='ident'>bio</span>, <span class='ident'>v</span>); }
+ }
+}
+
+<span class='kw'>impl</span> <span class='ident'>Read</span> <span class='kw'>for</span> <span class='ident'>MemBio</span> {
+ <span class='kw'>fn</span> <span class='ident'>read</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>buf</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> [<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>io</span>::<span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>usize</span><span class='op'>&gt;</span> {
+ <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>cmp</span>::<span class='ident'>min</span>(<span class='ident'>c_int</span>::<span class='ident'>max_value</span>() <span class='kw'>as</span> <span class='ident'>usize</span>, <span class='ident'>buf</span>.<span class='ident'>len</span>()) <span class='kw'>as</span> <span class='ident'>c_int</span>;
+ <span class='kw'>let</span> <span class='ident'>ret</span> <span class='op'>=</span> <span class='kw'>unsafe</span> {
+ <span class='ident'>ffi</span>::<span class='ident'>BIO_read</span>(<span class='self'>self</span>.<span class='ident'>bio</span>, <span class='ident'>buf</span>.<span class='ident'>as_ptr</span>() <span class='kw'>as</span> <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>c_void</span>, <span class='ident'>len</span>)
+ };
+
+ <span class='kw'>if</span> <span class='ident'>ret</span> <span class='op'>&lt;=</span> <span class='number'>0</span> {
+ <span class='kw'>let</span> <span class='ident'>is_eof</span> <span class='op'>=</span> <span class='kw'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>BIO_eof</span>(<span class='self'>self</span>.<span class='ident'>bio</span>) };
+ <span class='kw'>if</span> <span class='ident'>is_eof</span> {
+ <span class='prelude-val'>Ok</span>(<span class='number'>0</span>)
+ } <span class='kw'>else</span> {
+ <span class='prelude-val'>Err</span>(<span class='ident'>io</span>::<span class='ident'>Error</span>::<span class='ident'>new</span>(<span class='ident'>io</span>::<span class='ident'>ErrorKind</span>::<span class='ident'>Other</span>,
+ <span class='ident'>SslError</span>::<span class='ident'>get</span>()))
+ }
+ } <span class='kw'>else</span> {
+ <span class='prelude-val'>Ok</span>(<span class='ident'>ret</span> <span class='kw'>as</span> <span class='ident'>usize</span>)
+ }
+ }
+}
+
+<span class='kw'>impl</span> <span class='ident'>Write</span> <span class='kw'>for</span> <span class='ident'>MemBio</span> {
+ <span class='kw'>fn</span> <span class='ident'>write</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>buf</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]) <span class='op'>-&gt;</span> <span class='ident'>io</span>::<span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>usize</span><span class='op'>&gt;</span> {
+ <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>cmp</span>::<span class='ident'>min</span>(<span class='ident'>c_int</span>::<span class='ident'>max_value</span>() <span class='kw'>as</span> <span class='ident'>usize</span>, <span class='ident'>buf</span>.<span class='ident'>len</span>()) <span class='kw'>as</span> <span class='ident'>c_int</span>;
+ <span class='kw'>let</span> <span class='ident'>ret</span> <span class='op'>=</span> <span class='kw'>unsafe</span> {
+ <span class='ident'>ffi</span>::<span class='ident'>BIO_write</span>(<span class='self'>self</span>.<span class='ident'>bio</span>, <span class='ident'>buf</span>.<span class='ident'>as_ptr</span>() <span class='kw'>as</span> <span class='op'>*</span><span class='kw'>const</span> <span class='ident'>c_void</span>, <span class='ident'>len</span>)
+ };
+
+ <span class='kw'>if</span> <span class='ident'>ret</span> <span class='op'>&lt;</span> <span class='number'>0</span> {
+ <span class='prelude-val'>Err</span>(<span class='ident'>io</span>::<span class='ident'>Error</span>::<span class='ident'>new</span>(<span class='ident'>io</span>::<span class='ident'>ErrorKind</span>::<span class='ident'>Other</span>,
+ <span class='ident'>SslError</span>::<span class='ident'>get</span>()))
+ } <span class='kw'>else</span> {
+ <span class='prelude-val'>Ok</span>(<span class='ident'>ret</span> <span class='kw'>as</span> <span class='ident'>usize</span>)
+ }
+ }
+
+ <span class='kw'>fn</span> <span class='ident'>flush</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>io</span>::<span class='prelude-ty'>Result</span><span class='op'>&lt;</span>()<span class='op'>&gt;</span> {
+ <span class='prelude-val'>Ok</span>(())
+ }
+}
+</pre>
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