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</pre><pre class='rust '>
<span class='kw'>use</span> <span class='ident'>libc</span>::<span class='ident'>c_long</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>ptr</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'>Asn1Time</span> {
    <span class='ident'>handle</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>ASN1_TIME</span>,
    <span class='ident'>owned</span>: <span class='ident'>bool</span>,
}

<span class='kw'>impl</span> <span class='ident'>Asn1Time</span> {
    <span class='doccomment'>/// Wraps existing ASN1_TIME and takes ownership</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span>(<span class='ident'>handle</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>ASN1_TIME</span>) <span class='op'>-&gt;</span> <span class='ident'>Asn1Time</span> {
        <span class='ident'>Asn1Time</span> {
            <span class='ident'>handle</span>: <span class='ident'>handle</span>,
            <span class='ident'>owned</span>: <span class='bool-val'>true</span>,
        }
    }

    <span class='kw'>fn</span> <span class='ident'>new_with_period</span>(<span class='ident'>period</span>: <span class='ident'>u64</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>Asn1Time</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'>handle</span> <span class='op'>=</span> <span class='kw'>unsafe</span> {
            <span class='macro'>try_ssl_null</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>X509_gmtime_adj</span>(<span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(), <span class='ident'>period</span> <span class='kw'>as</span> <span class='ident'>c_long</span>))
        };
        <span class='prelude-val'>Ok</span>(<span class='ident'>Asn1Time</span>::<span class='ident'>new</span>(<span class='ident'>handle</span>))
    }

    <span class='doccomment'>/// Creates a new time on specified interval in days from now</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>days_from_now</span>(<span class='ident'>days</span>: <span class='ident'>u32</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>Asn1Time</span>, <span class='ident'>SslError</span><span class='op'>&gt;</span> {
        <span class='ident'>Asn1Time</span>::<span class='ident'>new_with_period</span>(<span class='ident'>days</span> <span class='kw'>as</span> <span class='ident'>u64</span> <span class='op'>*</span> <span class='number'>60</span> <span class='op'>*</span> <span class='number'>60</span> <span class='op'>*</span> <span class='number'>24</span>)
    }

    <span class='doccomment'>/// Returns raw handle</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'>ASN1_TIME</span> {
        <span class='kw'>return</span> <span class='self'>self</span>.<span class='ident'>handle</span>;
    }
}

<span class='kw'>impl</span> <span class='ident'>Drop</span> <span class='kw'>for</span> <span class='ident'>Asn1Time</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'>ASN1_TIME_free</span>(<span class='self'>self</span>.<span class='ident'>handle</span>) };
        }
    }
}
</pre>
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