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</pre><pre class='rust '>
<span class='kw'>use</span> <span class='ident'>libc</span>::{<span class='ident'>c_char</span>, <span class='ident'>c_int</span>, <span class='ident'>c_long</span>, <span class='ident'>c_ulong</span>, <span class='ident'>c_uint</span>, <span class='ident'>c_void</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'>cmp</span>::<span class='ident'>Ordering</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>ffi</span>::<span class='ident'>CString</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>iter</span>::<span class='ident'>repeat</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>mem</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'>ops</span>::<span class='ident'>Deref</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>fmt</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>str</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>slice</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>collections</span>::<span class='ident'>HashMap</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>marker</span>::<span class='ident'>PhantomData</span>;

<span class='kw'>use</span> <span class='ident'>asn1</span>::<span class='ident'>Asn1Time</span>;
<span class='kw'>use</span> <span class='ident'>bio</span>::<span class='ident'>MemBio</span>;
<span class='kw'>use</span> <span class='ident'>crypto</span>::<span class='ident'>hash</span>;
<span class='kw'>use</span> <span class='ident'>crypto</span>::<span class='ident'>hash</span>::<span class='ident'>Type</span> <span class='kw'>as</span> <span class='ident'>HashType</span>;
<span class='kw'>use</span> <span class='ident'>crypto</span>::<span class='ident'>pkey</span>::{<span class='ident'>PKey</span>, <span class='ident'>Parts</span>};
<span class='kw'>use</span> <span class='ident'>crypto</span>::<span class='ident'>rand</span>::<span class='ident'>rand_bytes</span>;
<span class='kw'>use</span> <span class='ident'>ffi</span>;
<span class='kw'>use</span> <span class='ident'>ffi_extras</span>;
<span class='kw'>use</span> <span class='ident'>ssl</span>::<span class='ident'>error</span>::{<span class='ident'>SslError</span>, <span class='ident'>StreamError</span>};
<span class='kw'>use</span> <span class='ident'>nid</span>::<span class='ident'>Nid</span>;

<span class='kw'>pub</span> <span class='kw'>mod</span> <span class='ident'>extension</span>;

<span class='kw'>use</span> <span class='self'>self</span>::<span class='ident'>extension</span>::{<span class='ident'>ExtensionType</span>, <span class='ident'>Extension</span>};

<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>test</span>)]</span>
<span class='kw'>mod</span> <span class='ident'>tests</span>;

<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>SslString</span>(<span class='kw-2'>&amp;</span><span class='lifetime'>&#39;static</span> <span class='ident'>str</span>);

<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;s</span><span class='op'>&gt;</span> <span class='ident'>Drop</span> <span class='kw'>for</span> <span class='ident'>SslString</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'>unsafe</span> {
            <span class='ident'>ffi</span>::<span class='ident'>CRYPTO_free</span>(<span class='self'>self</span>.<span class='number'>0</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='kw'>impl</span> <span class='ident'>Deref</span> <span class='kw'>for</span> <span class='ident'>SslString</span> {
    <span class='kw'>type</span> <span class='ident'>Target</span> <span class='op'>=</span> <span class='ident'>str</span>;

    <span class='kw'>fn</span> <span class='ident'>deref</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='kw-2'>&amp;</span><span class='ident'>str</span> {
        <span class='self'>self</span>.<span class='number'>0</span>
    }
}

<span class='kw'>impl</span> <span class='ident'>SslString</span> {
    <span class='kw'>unsafe</span> <span class='kw'>fn</span> <span class='ident'>new</span>(<span class='ident'>buf</span>: <span class='op'>*</span><span class='kw'>const</span> <span class='ident'>c_char</span>, <span class='ident'>len</span>: <span class='ident'>c_int</span>) <span class='op'>-&gt;</span> <span class='ident'>SslString</span> {
        <span class='kw'>let</span> <span class='ident'>slice</span> <span class='op'>=</span> <span class='ident'>slice</span>::<span class='ident'>from_raw_parts</span>(<span class='ident'>buf</span> <span class='kw'>as</span> <span class='op'>*</span><span class='kw'>const</span> _, <span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
        <span class='ident'>SslString</span>(<span class='ident'>str</span>::<span class='ident'>from_utf8_unchecked</span>(<span class='ident'>slice</span>))
    }
}

<span class='kw'>impl</span> <span class='ident'>fmt</span>::<span class='ident'>Display</span> <span class='kw'>for</span> <span class='ident'>SslString</span> {
    <span class='kw'>fn</span> <span class='ident'>fmt</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>f</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>fmt</span>::<span class='ident'>Formatter</span>) <span class='op'>-&gt;</span> <span class='ident'>fmt</span>::<span class='prelude-ty'>Result</span> {
        <span class='ident'>fmt</span>::<span class='ident'>Display</span>::<span class='ident'>fmt</span>(<span class='self'>self</span>.<span class='number'>0</span>, <span class='ident'>f</span>)
    }
}

<span class='kw'>impl</span> <span class='ident'>fmt</span>::<span class='ident'>Debug</span> <span class='kw'>for</span> <span class='ident'>SslString</span> {
    <span class='kw'>fn</span> <span class='ident'>fmt</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>f</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>fmt</span>::<span class='ident'>Formatter</span>) <span class='op'>-&gt;</span> <span class='ident'>fmt</span>::<span class='prelude-ty'>Result</span> {
        <span class='ident'>fmt</span>::<span class='ident'>Debug</span>::<span class='ident'>fmt</span>(<span class='self'>self</span>.<span class='number'>0</span>, <span class='ident'>f</span>)
    }
}

<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Copy</span>, <span class='ident'>Clone</span>)]</span>
<span class='attribute'>#[<span class='ident'>repr</span>(<span class='ident'>i32</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>enum</span> <span class='ident'>X509FileType</span> {
    <span class='ident'>PEM</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>X509_FILETYPE_PEM</span>,
    <span class='ident'>ASN1</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>X509_FILETYPE_ASN1</span>,
    <span class='ident'>Default</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>X509_FILETYPE_DEFAULT</span>,
}

<span class='attribute'>#[<span class='ident'>allow</span>(<span class='ident'>missing_copy_implementations</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>X509StoreContext</span> {
    <span class='ident'>ctx</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>X509_STORE_CTX</span>,
}

<span class='kw'>impl</span> <span class='ident'>X509StoreContext</span> {
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span>(<span class='ident'>ctx</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>X509_STORE_CTX</span>) <span class='op'>-&gt;</span> <span class='ident'>X509StoreContext</span> {
        <span class='ident'>X509StoreContext</span> { <span class='ident'>ctx</span>: <span class='ident'>ctx</span> }
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>get_error</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='ident'>X509ValidationError</span><span class='op'>&gt;</span> {
        <span class='kw'>let</span> <span class='ident'>err</span> <span class='op'>=</span> <span class='kw'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>X509_STORE_CTX_get_error</span>(<span class='self'>self</span>.<span class='ident'>ctx</span>) };
        <span class='ident'>X509ValidationError</span>::<span class='ident'>from_raw</span>(<span class='ident'>err</span>)
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>get_current_cert</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>(<span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;&gt;</span> {
        <span class='kw'>let</span> <span class='ident'>ptr</span> <span class='op'>=</span> <span class='kw'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>X509_STORE_CTX_get_current_cert</span>(<span class='self'>self</span>.<span class='ident'>ctx</span>) };

        <span class='kw'>if</span> <span class='ident'>ptr</span>.<span class='ident'>is_null</span>() {
            <span class='prelude-val'>None</span>
        } <span class='kw'>else</span> {
            <span class='prelude-val'>Some</span>(<span class='ident'>X509</span> {
                <span class='ident'>ctx</span>: <span class='prelude-val'>Some</span>(<span class='self'>self</span>),
                <span class='ident'>handle</span>: <span class='ident'>ptr</span>,
                <span class='ident'>owned</span>: <span class='bool-val'>false</span>,
            })
        }
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>error_depth</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>u32</span> {
        <span class='kw'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>X509_STORE_CTX_get_error_depth</span>(<span class='self'>self</span>.<span class='ident'>ctx</span>) <span class='kw'>as</span> <span class='ident'>u32</span> }
    }
}

<span class='attribute'>#[<span class='ident'>allow</span>(<span class='ident'>non_snake_case</span>)]</span>
<span class='doccomment'>/// Generator of private key/certificate pairs</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// # Example</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// ```</span>
<span class='doccomment'>/// # #[allow(unstable)]</span>
<span class='doccomment'>/// # fn main() {</span>
<span class='doccomment'>/// use std::fs;</span>
<span class='doccomment'>/// use std::fs::File;</span>
<span class='doccomment'>/// use std::io::prelude::*;</span>
<span class='doccomment'>/// use std::path::Path;</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// use openssl::crypto::hash::Type;</span>
<span class='doccomment'>/// use openssl::x509::X509Generator;</span>
<span class='doccomment'>/// use openssl::x509::extension::{Extension, KeyUsageOption};</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let gen = X509Generator::new()</span>
<span class='doccomment'>///        .set_bitlength(2048)</span>
<span class='doccomment'>///        .set_valid_period(365*2)</span>
<span class='doccomment'>///        .add_name(&quot;CN&quot;.to_owned(), &quot;SuperMegaCorp Inc.&quot;.to_owned())</span>
<span class='doccomment'>///        .set_sign_hash(Type::SHA256)</span>
<span class='doccomment'>///        .add_extension(Extension::KeyUsage(vec![KeyUsageOption::DigitalSignature]));</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let (cert, pkey) = gen.generate().unwrap();</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let cert_path = &quot;doc_cert.pem&quot;;</span>
<span class='doccomment'>/// let mut file = File::create(cert_path).unwrap();</span>
<span class='doccomment'>/// assert!(cert.write_pem(&amp;mut file).is_ok());</span>
<span class='doccomment'>/// # let _ = fs::remove_file(cert_path);</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// let pkey_path = &quot;doc_key.pem&quot;;</span>
<span class='doccomment'>/// let mut file = File::create(pkey_path).unwrap();</span>
<span class='doccomment'>/// assert!(pkey.write_pem(&amp;mut file).is_ok());</span>
<span class='doccomment'>/// # let _ = fs::remove_file(pkey_path);</span>
<span class='doccomment'>/// # }</span>
<span class='doccomment'>/// ```</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>X509Generator</span> {
    <span class='ident'>bits</span>: <span class='ident'>u32</span>,
    <span class='ident'>days</span>: <span class='ident'>u32</span>,
    <span class='ident'>names</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span>(<span class='ident'>String</span>, <span class='ident'>String</span>)<span class='op'>&gt;</span>,
    <span class='ident'>extensions</span>: <span class='ident'>Extensions</span>,
    <span class='ident'>hash_type</span>: <span class='ident'>HashType</span>,
}

<span class='kw'>impl</span> <span class='ident'>X509Generator</span> {
    <span class='doccomment'>/// Creates a new generator with the following defaults:</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// bit length: 1024</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// validity period: 365 days</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// CN: &quot;rust-openssl&quot;</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// hash: SHA1</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span>() <span class='op'>-&gt;</span> <span class='ident'>X509Generator</span> {
        <span class='ident'>X509Generator</span> {
            <span class='ident'>bits</span>: <span class='number'>1024</span>,
            <span class='ident'>days</span>: <span class='number'>365</span>,
            <span class='ident'>names</span>: <span class='macro'>vec</span><span class='macro'>!</span>[],
            <span class='ident'>extensions</span>: <span class='ident'>Extensions</span>::<span class='ident'>new</span>(),
            <span class='ident'>hash_type</span>: <span class='ident'>HashType</span>::<span class='ident'>SHA1</span>,
        }
    }

    <span class='doccomment'>/// Sets desired bit length</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>set_bitlength</span>(<span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>bits</span>: <span class='ident'>u32</span>) <span class='op'>-&gt;</span> <span class='ident'>X509Generator</span> {
        <span class='self'>self</span>.<span class='ident'>bits</span> <span class='op'>=</span> <span class='ident'>bits</span>;
        <span class='self'>self</span>
    }

    <span class='doccomment'>/// Sets certificate validity period in days since today</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>set_valid_period</span>(<span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>days</span>: <span class='ident'>u32</span>) <span class='op'>-&gt;</span> <span class='ident'>X509Generator</span> {
        <span class='self'>self</span>.<span class='ident'>days</span> <span class='op'>=</span> <span class='ident'>days</span>;
        <span class='self'>self</span>
    }

    <span class='doccomment'>/// Add attribute to the name of the certificate</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// ```</span>
    <span class='doccomment'>/// # let generator = openssl::x509::X509Generator::new();</span>
    <span class='doccomment'>/// generator.add_name(&quot;CN&quot;.to_string(),&quot;example.com&quot;.to_string());</span>
    <span class='doccomment'>/// ```</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>add_name</span>(<span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>attr_type</span>: <span class='ident'>String</span>, <span class='ident'>attr_value</span>: <span class='ident'>String</span>) <span class='op'>-&gt;</span> <span class='ident'>X509Generator</span> {
        <span class='self'>self</span>.<span class='ident'>names</span>.<span class='ident'>push</span>((<span class='ident'>attr_type</span>, <span class='ident'>attr_value</span>));
        <span class='self'>self</span>
    }

    <span class='doccomment'>/// Add multiple attributes to the name of the certificate</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// ```</span>
    <span class='doccomment'>/// # let generator = openssl::x509::X509Generator::new();</span>
    <span class='doccomment'>/// generator.add_names(vec![(&quot;CN&quot;.to_string(),&quot;example.com&quot;.to_string())]);</span>
    <span class='doccomment'>/// ```</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>add_names</span><span class='op'>&lt;</span><span class='ident'>I</span><span class='op'>&gt;</span>(<span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>attrs</span>: <span class='ident'>I</span>) <span class='op'>-&gt;</span> <span class='ident'>X509Generator</span>
        <span class='kw'>where</span> <span class='ident'>I</span>: <span class='ident'>IntoIterator</span><span class='op'>&lt;</span><span class='ident'>Item</span> <span class='op'>=</span> (<span class='ident'>String</span>, <span class='ident'>String</span>)<span class='op'>&gt;</span>
    {
        <span class='self'>self</span>.<span class='ident'>names</span>.<span class='ident'>extend</span>(<span class='ident'>attrs</span>);
        <span class='self'>self</span>
    }

    <span class='doccomment'>/// Add an extension to a certificate</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// If the extension already exists, it will be replaced.</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// ```</span>
    <span class='doccomment'>/// use openssl::x509::extension::Extension::*;</span>
    <span class='doccomment'>/// use openssl::x509::extension::KeyUsageOption::*;</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// # let generator = openssl::x509::X509Generator::new();</span>
    <span class='doccomment'>/// generator.add_extension(KeyUsage(vec![DigitalSignature, KeyEncipherment]));</span>
    <span class='doccomment'>/// ```</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>add_extension</span>(<span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>ext</span>: <span class='ident'>extension</span>::<span class='ident'>Extension</span>) <span class='op'>-&gt;</span> <span class='ident'>X509Generator</span> {
        <span class='self'>self</span>.<span class='ident'>extensions</span>.<span class='ident'>add</span>(<span class='ident'>ext</span>);
        <span class='self'>self</span>
    }

    <span class='doccomment'>/// Add multiple extensions to a certificate</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// If any of the extensions already exist, they will be replaced.</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// ```</span>
    <span class='doccomment'>/// use openssl::x509::extension::Extension::*;</span>
    <span class='doccomment'>/// use openssl::x509::extension::KeyUsageOption::*;</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// # let generator = openssl::x509::X509Generator::new();</span>
    <span class='doccomment'>/// generator.add_extensions(vec![KeyUsage(vec![DigitalSignature, KeyEncipherment])]);</span>
    <span class='doccomment'>/// ```</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>add_extensions</span><span class='op'>&lt;</span><span class='ident'>I</span><span class='op'>&gt;</span>(<span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>exts</span>: <span class='ident'>I</span>) <span class='op'>-&gt;</span> <span class='ident'>X509Generator</span>
        <span class='kw'>where</span> <span class='ident'>I</span>: <span class='ident'>IntoIterator</span><span class='op'>&lt;</span><span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>extension</span>::<span class='ident'>Extension</span><span class='op'>&gt;</span>
    {
        <span class='kw'>for</span> <span class='ident'>ext</span> <span class='kw'>in</span> <span class='ident'>exts</span> {
            <span class='self'>self</span>.<span class='ident'>extensions</span>.<span class='ident'>add</span>(<span class='ident'>ext</span>);
        }

        <span class='self'>self</span>
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>set_sign_hash</span>(<span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>hash_type</span>: <span class='ident'>hash</span>::<span class='ident'>Type</span>) <span class='op'>-&gt;</span> <span class='ident'>X509Generator</span> {
        <span class='self'>self</span>.<span class='ident'>hash_type</span> <span class='op'>=</span> <span class='ident'>hash_type</span>;
        <span class='self'>self</span>
    }

    <span class='kw'>fn</span> <span class='ident'>add_extension_internal</span>(<span class='ident'>x509</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>X509</span>,
                              <span class='ident'>exttype</span>: <span class='kw-2'>&amp;</span><span class='ident'>extension</span>::<span class='ident'>ExtensionType</span>,
                              <span class='ident'>value</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>)
                              <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span>(), <span class='ident'>SslError</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>ctx</span>: <span class='ident'>ffi</span>::<span class='ident'>X509V3_CTX</span> <span class='op'>=</span> <span class='ident'>mem</span>::<span class='ident'>zeroed</span>();
            <span class='ident'>ffi</span>::<span class='ident'>X509V3_set_ctx</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>ctx</span>, <span class='ident'>x509</span>, <span class='ident'>x509</span>, <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(), <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(), <span class='number'>0</span>);
            <span class='kw'>let</span> <span class='ident'>value</span> <span class='op'>=</span> <span class='ident'>CString</span>::<span class='ident'>new</span>(<span class='ident'>value</span>.<span class='ident'>as_bytes</span>()).<span class='ident'>unwrap</span>();
            <span class='kw'>let</span> <span class='ident'>ext</span> <span class='op'>=</span> <span class='kw'>match</span> <span class='ident'>exttype</span>.<span class='ident'>get_nid</span>() {
                <span class='prelude-val'>Some</span>(<span class='ident'>nid</span>) <span class='op'>=&gt;</span> {
                    <span class='ident'>ffi</span>::<span class='ident'>X509V3_EXT_conf_nid</span>(<span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(),
                                             <span class='ident'>mem</span>::<span class='ident'>transmute</span>(<span class='kw-2'>&amp;</span><span class='ident'>ctx</span>),
                                             <span class='ident'>nid</span> <span class='kw'>as</span> <span class='ident'>c_int</span>,
                                             <span class='ident'>value</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_char</span>)
                }
                <span class='prelude-val'>None</span> <span class='op'>=&gt;</span> {
                    <span class='kw'>let</span> <span class='ident'>name</span> <span class='op'>=</span> <span class='ident'>CString</span>::<span class='ident'>new</span>(<span class='ident'>exttype</span>.<span class='ident'>get_name</span>().<span class='ident'>unwrap</span>().<span class='ident'>as_bytes</span>()).<span class='ident'>unwrap</span>();
                    <span class='ident'>ffi</span>::<span class='ident'>X509V3_EXT_conf</span>(<span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(),
                                         <span class='ident'>mem</span>::<span class='ident'>transmute</span>(<span class='kw-2'>&amp;</span><span class='ident'>ctx</span>),
                                         <span class='ident'>name</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_char</span>,
                                         <span class='ident'>value</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_char</span>)
                }
            };
            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>success</span> <span class='op'>=</span> <span class='bool-val'>false</span>;
            <span class='kw'>if</span> <span class='ident'>ext</span> <span class='op'>!=</span> <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>() {
                <span class='ident'>success</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>X509_add_ext</span>(<span class='ident'>x509</span>, <span class='ident'>ext</span>, <span class='op'>-</span><span class='number'>1</span>) <span class='op'>!=</span> <span class='number'>0</span>;
                <span class='ident'>ffi</span>::<span class='ident'>X509_EXTENSION_free</span>(<span class='ident'>ext</span>);
            }
            <span class='macro'>lift_ssl_if</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>success</span>)
        }
    }

    <span class='kw'>fn</span> <span class='ident'>add_name_internal</span>(<span class='ident'>name</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>X509_NAME</span>,
                         <span class='ident'>key</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>,
                         <span class='ident'>value</span>: <span class='kw-2'>&amp;</span><span class='ident'>str</span>)
                         <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span>(), <span class='ident'>SslError</span><span class='op'>&gt;</span> {
        <span class='kw'>let</span> <span class='ident'>value_len</span> <span class='op'>=</span> <span class='ident'>value</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>c_int</span>;
        <span class='macro'>lift_ssl</span><span class='macro'>!</span>(<span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>key</span> <span class='op'>=</span> <span class='ident'>CString</span>::<span class='ident'>new</span>(<span class='ident'>key</span>.<span class='ident'>as_bytes</span>()).<span class='ident'>unwrap</span>();
            <span class='kw'>let</span> <span class='ident'>value</span> <span class='op'>=</span> <span class='ident'>CString</span>::<span class='ident'>new</span>(<span class='ident'>value</span>.<span class='ident'>as_bytes</span>()).<span class='ident'>unwrap</span>();
            <span class='ident'>ffi</span>::<span class='ident'>X509_NAME_add_entry_by_txt</span>(<span class='ident'>name</span>,
                                            <span class='ident'>key</span>.<span class='ident'>as_ptr</span>() <span class='kw'>as</span> <span class='op'>*</span><span class='kw'>const</span> _,
                                            <span class='ident'>ffi</span>::<span class='ident'>MBSTRING_UTF8</span>,
                                            <span class='ident'>value</span>.<span class='ident'>as_ptr</span>() <span class='kw'>as</span> <span class='op'>*</span><span class='kw'>const</span> _,
                                            <span class='ident'>value_len</span>,
                                            <span class='op'>-</span><span class='number'>1</span>,
                                            <span class='number'>0</span>)
        })
    }

    <span class='kw'>fn</span> <span class='ident'>random_serial</span>() <span class='op'>-&gt;</span> <span class='ident'>c_long</span> {
        <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>mem</span>::<span class='ident'>size_of</span>::<span class='op'>&lt;</span><span class='ident'>c_long</span><span class='op'>&gt;</span>();
        <span class='kw'>let</span> <span class='ident'>bytes</span> <span class='op'>=</span> <span class='ident'>rand_bytes</span>(<span class='ident'>len</span>);
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>res</span> <span class='op'>=</span> <span class='number'>0</span>;
        <span class='kw'>for</span> <span class='ident'>b</span> <span class='kw'>in</span> <span class='ident'>bytes</span>.<span class='ident'>iter</span>() {
            <span class='ident'>res</span> <span class='op'>=</span> <span class='ident'>res</span> <span class='op'>&lt;&lt;</span> <span class='number'>8</span>;
            <span class='ident'>res</span> <span class='op'>|=</span> (<span class='op'>*</span><span class='ident'>b</span> <span class='kw'>as</span> <span class='ident'>c_long</span>) <span class='kw-2'>&amp;</span> <span class='number'>0xff</span>;
        }

        <span class='comment'>// While OpenSSL is actually OK to have negative serials</span>
        <span class='comment'>// other libraries (for example, Go crypto) can drop</span>
        <span class='comment'>// such certificates as invalid, so we clear the high bit</span>
        ((<span class='ident'>res</span> <span class='kw'>as</span> <span class='ident'>c_ulong</span>) <span class='op'>&gt;&gt;</span> <span class='number'>1</span>) <span class='kw'>as</span> <span class='ident'>c_long</span>
    }

    <span class='doccomment'>/// Generates a private key and a self-signed certificate and returns them</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>generate</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span>(<span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>, <span class='ident'>PKey</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='kw-2'>mut</span> <span class='ident'>p_key</span> <span class='op'>=</span> <span class='ident'>PKey</span>::<span class='ident'>new</span>();
        <span class='ident'>p_key</span>.<span class='ident'>gen</span>(<span class='self'>self</span>.<span class='ident'>bits</span> <span class='kw'>as</span> <span class='ident'>usize</span>);

        <span class='kw'>let</span> <span class='ident'>x509</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='self'>self</span>.<span class='ident'>sign</span>(<span class='kw-2'>&amp;</span><span class='ident'>p_key</span>));
        <span class='prelude-val'>Ok</span>((<span class='ident'>x509</span>, <span class='ident'>p_key</span>))
    }

    <span class='doccomment'>/// Sets the certificate public-key, then self-sign and return it</span>
    <span class='doccomment'>/// Note: That the bit-length of the private key is used (set_bitlength is ignored)</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>sign</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>p_key</span>: <span class='kw-2'>&amp;</span><span class='ident'>PKey</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>, <span class='ident'>SslError</span><span class='op'>&gt;</span> {
        <span class='ident'>ffi</span>::<span class='ident'>init</span>();

        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>x509</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>X509_new</span>();
            <span class='macro'>try_ssl_null</span><span class='macro'>!</span>(<span class='ident'>x509</span>);

            <span class='kw'>let</span> <span class='ident'>x509</span> <span class='op'>=</span> <span class='ident'>X509</span> {
                <span class='ident'>handle</span>: <span class='ident'>x509</span>,
                <span class='ident'>ctx</span>: <span class='prelude-val'>None</span>,
                <span class='ident'>owned</span>: <span class='bool-val'>true</span>,
            };

            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>X509_set_version</span>(<span class='ident'>x509</span>.<span class='ident'>handle</span>, <span class='number'>2</span>));
            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>ASN1_INTEGER_set</span>(<span class='ident'>ffi</span>::<span class='ident'>X509_get_serialNumber</span>(<span class='ident'>x509</span>.<span class='ident'>handle</span>),
                                           <span class='ident'>X509Generator</span>::<span class='ident'>random_serial</span>()));

            <span class='kw'>let</span> <span class='ident'>not_before</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>Asn1Time</span>::<span class='ident'>days_from_now</span>(<span class='number'>0</span>));
            <span class='kw'>let</span> <span class='ident'>not_after</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>Asn1Time</span>::<span class='ident'>days_from_now</span>(<span class='self'>self</span>.<span class='ident'>days</span>));

            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>X509_set_notBefore</span>(<span class='ident'>x509</span>.<span class='ident'>handle</span>, <span class='ident'>mem</span>::<span class='ident'>transmute</span>(<span class='ident'>not_before</span>.<span class='ident'>get_handle</span>())));
            <span class='comment'>// If prev line succeded - ownership should go to cert</span>
            <span class='ident'>mem</span>::<span class='ident'>forget</span>(<span class='ident'>not_before</span>);

            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>X509_set_notAfter</span>(<span class='ident'>x509</span>.<span class='ident'>handle</span>, <span class='ident'>mem</span>::<span class='ident'>transmute</span>(<span class='ident'>not_after</span>.<span class='ident'>get_handle</span>())));
            <span class='comment'>// If prev line succeded - ownership should go to cert</span>
            <span class='ident'>mem</span>::<span class='ident'>forget</span>(<span class='ident'>not_after</span>);

            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>X509_set_pubkey</span>(<span class='ident'>x509</span>.<span class='ident'>handle</span>, <span class='ident'>p_key</span>.<span class='ident'>get_handle</span>()));

            <span class='kw'>let</span> <span class='ident'>name</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>X509_get_subject_name</span>(<span class='ident'>x509</span>.<span class='ident'>handle</span>);
            <span class='macro'>try_ssl_null</span><span class='macro'>!</span>(<span class='ident'>name</span>);

            <span class='kw'>let</span> <span class='ident'>default</span> <span class='op'>=</span> [(<span class='string'>&quot;CN&quot;</span>, <span class='string'>&quot;rust-openssl&quot;</span>)];
            <span class='kw'>let</span> <span class='ident'>default_iter</span> <span class='op'>=</span> <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>default</span>.<span class='ident'>iter</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='kw-2'>&amp;</span>(<span class='ident'>k</span>, <span class='ident'>v</span>)<span class='op'>|</span> (<span class='ident'>k</span>, <span class='ident'>v</span>));
            <span class='kw'>let</span> <span class='ident'>arg_iter</span> <span class='op'>=</span> <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>names</span>.<span class='ident'>iter</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='kw-2'>&amp;</span>(<span class='kw-2'>ref</span> <span class='ident'>k</span>, <span class='kw-2'>ref</span> <span class='ident'>v</span>)<span class='op'>|</span> (<span class='kw-2'>&amp;</span><span class='ident'>k</span>[..], <span class='kw-2'>&amp;</span><span class='ident'>v</span>[..]));
            <span class='kw'>let</span> <span class='ident'>iter</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>Iterator</span><span class='op'>&lt;</span><span class='ident'>Item</span> <span class='op'>=</span> (<span class='kw-2'>&amp;</span><span class='ident'>str</span>, <span class='kw-2'>&amp;</span><span class='ident'>str</span>)<span class='op'>&gt;</span> <span class='op'>=</span> <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>names</span>.<span class='ident'>len</span>() <span class='op'>==</span> <span class='number'>0</span> {
                <span class='ident'>default_iter</span>
            } <span class='kw'>else</span> {
                <span class='ident'>arg_iter</span>
            };

            <span class='kw'>for</span> (<span class='ident'>key</span>, <span class='ident'>val</span>) <span class='kw'>in</span> <span class='ident'>iter</span> {
                <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>X509Generator</span>::<span class='ident'>add_name_internal</span>(<span class='ident'>name</span>, <span class='kw-2'>&amp;</span><span class='ident'>key</span>, <span class='kw-2'>&amp;</span><span class='ident'>val</span>));
            }
            <span class='ident'>ffi</span>::<span class='ident'>X509_set_issuer_name</span>(<span class='ident'>x509</span>.<span class='ident'>handle</span>, <span class='ident'>name</span>);

            <span class='kw'>for</span> (<span class='ident'>exttype</span>, <span class='ident'>ext</span>) <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>extensions</span>.<span class='ident'>iter</span>() {
                <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>X509Generator</span>::<span class='ident'>add_extension_internal</span>(<span class='ident'>x509</span>.<span class='ident'>handle</span>,
                                                           <span class='kw-2'>&amp;</span><span class='ident'>exttype</span>,
                                                           <span class='kw-2'>&amp;</span><span class='ident'>ext</span>.<span class='ident'>to_string</span>()));
            }

            <span class='kw'>let</span> <span class='ident'>hash_fn</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>hash_type</span>.<span class='ident'>evp_md</span>();
            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>X509_sign</span>(<span class='ident'>x509</span>.<span class='ident'>handle</span>, <span class='ident'>p_key</span>.<span class='ident'>get_handle</span>(), <span class='ident'>hash_fn</span>));
            <span class='prelude-val'>Ok</span>(<span class='ident'>x509</span>)
        }
    }

    <span class='doccomment'>/// Obtain a certificate signing request (CSR)</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>request</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>p_key</span>: <span class='kw-2'>&amp;</span><span class='ident'>PKey</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>X509Req</span>, <span class='ident'>SslError</span><span class='op'>&gt;</span> {
        <span class='kw'>let</span> <span class='ident'>cert</span> <span class='op'>=</span> <span class='kw'>match</span> <span class='self'>self</span>.<span class='ident'>sign</span>(<span class='ident'>p_key</span>) {
            <span class='prelude-val'>Ok</span>(<span class='ident'>c</span>) <span class='op'>=&gt;</span> <span class='ident'>c</span>,
            <span class='prelude-val'>Err</span>(<span class='ident'>x</span>) <span class='op'>=&gt;</span> <span class='kw'>return</span> <span class='prelude-val'>Err</span>(<span class='ident'>x</span>),
        };

        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>req</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>X509_to_X509_REQ</span>(<span class='ident'>cert</span>.<span class='ident'>handle</span>, <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(), <span class='ident'>ptr</span>::<span class='ident'>null</span>());
            <span class='macro'>try_ssl_null</span><span class='macro'>!</span>(<span class='ident'>req</span>);

            <span class='kw'>let</span> <span class='ident'>exts</span> <span class='op'>=</span> <span class='ident'>ffi_extras</span>::<span class='ident'>X509_get_extensions</span>(<span class='ident'>cert</span>.<span class='ident'>handle</span>);
            <span class='kw'>if</span> <span class='ident'>exts</span> <span class='op'>!=</span> <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>() {
                <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>X509_REQ_add_extensions</span>(<span class='ident'>req</span>, <span class='ident'>exts</span>));
            }

            <span class='kw'>let</span> <span class='ident'>hash_fn</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>hash_type</span>.<span class='ident'>evp_md</span>();
            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>X509_REQ_sign</span>(<span class='ident'>req</span>, <span class='ident'>p_key</span>.<span class='ident'>get_handle</span>(), <span class='ident'>hash_fn</span>));

            <span class='prelude-val'>Ok</span>(<span class='ident'>X509Req</span>::<span class='ident'>new</span>(<span class='ident'>req</span>))
        }
    }
}


<span class='attribute'>#[<span class='ident'>allow</span>(<span class='ident'>dead_code</span>)]</span>
<span class='doccomment'>/// A public key certificate</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;ctx</span><span class='op'>&gt;</span> {
    <span class='ident'>ctx</span>: <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='kw-2'>&amp;</span><span class='lifetime'>&#39;ctx</span> <span class='ident'>X509StoreContext</span><span class='op'>&gt;</span>,
    <span class='ident'>handle</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>X509</span>,
    <span class='ident'>owned</span>: <span class='ident'>bool</span>,
}

<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;ctx</span><span class='op'>&gt;</span> <span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;ctx</span><span class='op'>&gt;</span> {
    <span class='doccomment'>/// Creates new from handle with desired 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'>X509</span>, <span class='ident'>owned</span>: <span class='ident'>bool</span>) <span class='op'>-&gt;</span> <span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;ctx</span><span class='op'>&gt;</span> {
        <span class='ident'>X509</span> {
            <span class='ident'>ctx</span>: <span class='prelude-val'>None</span>,
            <span class='ident'>handle</span>: <span class='ident'>handle</span>,
            <span class='ident'>owned</span>: <span class='ident'>owned</span>,
        }
    }

    <span class='doccomment'>/// Creates a new certificate from context. Doesn&#39;t take ownership</span>
    <span class='doccomment'>/// of handle.</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new_in_ctx</span>(<span class='ident'>handle</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>X509</span>, <span class='ident'>ctx</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;ctx</span> <span class='ident'>X509StoreContext</span>) <span class='op'>-&gt;</span> <span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;ctx</span><span class='op'>&gt;</span> {
        <span class='ident'>X509</span> {
            <span class='ident'>ctx</span>: <span class='prelude-val'>Some</span>(<span class='ident'>ctx</span>),
            <span class='ident'>handle</span>: <span class='ident'>handle</span>,
            <span class='ident'>owned</span>: <span class='bool-val'>false</span>,
        }
    }

    <span class='doccomment'>/// Reads certificate from PEM, takes ownership of handle</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>from_pem</span><span class='op'>&lt;</span><span class='ident'>R</span><span class='op'>&gt;</span>(<span class='ident'>reader</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>R</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;ctx</span><span class='op'>&gt;</span>, <span class='ident'>SslError</span><span class='op'>&gt;</span>
        <span class='kw'>where</span> <span class='ident'>R</span>: <span class='ident'>Read</span>
    {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>mem_bio</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>MemBio</span>::<span class='ident'>new</span>());
        <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>io</span>::<span class='ident'>copy</span>(<span class='ident'>reader</span>, <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>mem_bio</span>).<span class='ident'>map_err</span>(<span class='ident'>StreamError</span>));

        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>handle</span> <span class='op'>=</span> <span class='macro'>try_ssl_null</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>PEM_read_bio_X509</span>(<span class='ident'>mem_bio</span>.<span class='ident'>get_handle</span>(),
                                                              <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(),
                                                              <span class='prelude-val'>None</span>,
                                                              <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>()));
            <span class='prelude-val'>Ok</span>(<span class='ident'>X509</span>::<span class='ident'>new</span>(<span class='ident'>handle</span>, <span class='bool-val'>true</span>))
        }
    }

    <span class='kw'>pub</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'>X509</span> {
        <span class='self'>self</span>.<span class='ident'>handle</span>
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>subject_name</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>(<span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>X509Name</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
        <span class='kw'>let</span> <span class='ident'>name</span> <span class='op'>=</span> <span class='kw'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>X509_get_subject_name</span>(<span class='self'>self</span>.<span class='ident'>handle</span>) };
        <span class='ident'>X509Name</span> {
            <span class='ident'>x509</span>: <span class='self'>self</span>,
            <span class='ident'>name</span>: <span class='ident'>name</span>,
        }
    }

    <span class='doccomment'>/// Returns this certificate&#39;s SAN entries, if they exist.</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>subject_alt_names</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>(<span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='ident'>GeneralNames</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>stack</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>X509_get_ext_d2i</span>(<span class='self'>self</span>.<span class='ident'>handle</span>,
                                              <span class='ident'>Nid</span>::<span class='ident'>SubjectAltName</span> <span class='kw'>as</span> <span class='ident'>c_int</span>,
                                              <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(),
                                              <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>());
            <span class='kw'>if</span> <span class='ident'>stack</span>.<span class='ident'>is_null</span>() {
                <span class='kw'>return</span> <span class='prelude-val'>None</span>;
            }

            <span class='prelude-val'>Some</span>(<span class='ident'>GeneralNames</span> {
                <span class='ident'>stack</span>: <span class='ident'>stack</span> <span class='kw'>as</span> <span class='op'>*</span><span class='kw'>const</span> _,
                <span class='ident'>m</span>: <span class='ident'>PhantomData</span>,
            })
        }
    }

    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>public_key</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>PKey</span> {
        <span class='kw'>let</span> <span class='ident'>pkey</span> <span class='op'>=</span> <span class='kw'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>X509_get_pubkey</span>(<span class='self'>self</span>.<span class='ident'>handle</span>) };
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>pkey</span>.<span class='ident'>is_null</span>());

        <span class='ident'>PKey</span>::<span class='ident'>from_handle</span>(<span class='ident'>pkey</span>, <span class='ident'>Parts</span>::<span class='ident'>Public</span>)
    }

    <span class='doccomment'>/// Returns certificate fingerprint calculated using provided hash</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>fingerprint</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>hash_type</span>: <span class='ident'>hash</span>::<span class='ident'>Type</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;&gt;</span> {
        <span class='kw'>let</span> <span class='ident'>evp</span> <span class='op'>=</span> <span class='ident'>hash_type</span>.<span class='ident'>evp_md</span>();
        <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>hash_type</span>.<span class='ident'>md_len</span>();
        <span class='kw'>let</span> <span class='ident'>v</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>u8</span><span class='op'>&gt;</span> <span class='op'>=</span> <span class='ident'>repeat</span>(<span class='number'>0</span>).<span class='ident'>take</span>(<span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span>).<span class='ident'>collect</span>();
        <span class='kw'>let</span> <span class='ident'>act_len</span>: <span class='ident'>c_uint</span> <span class='op'>=</span> <span class='number'>0</span>;
        <span class='kw'>let</span> <span class='ident'>res</span> <span class='op'>=</span> <span class='kw'>unsafe</span> {
            <span class='ident'>ffi</span>::<span class='ident'>X509_digest</span>(<span class='self'>self</span>.<span class='ident'>handle</span>,
                             <span class='ident'>evp</span>,
                             <span class='ident'>mem</span>::<span class='ident'>transmute</span>(<span class='ident'>v</span>.<span class='ident'>as_ptr</span>()),
                             <span class='ident'>mem</span>::<span class='ident'>transmute</span>(<span class='kw-2'>&amp;</span><span class='ident'>act_len</span>))
        };

        <span class='kw'>match</span> <span class='ident'>res</span> {
            <span class='number'>0</span> <span class='op'>=&gt;</span> <span class='prelude-val'>None</span>,
            _ <span class='op'>=&gt;</span> {
                <span class='kw'>let</span> <span class='ident'>act_len</span> <span class='op'>=</span> <span class='ident'>act_len</span> <span class='kw'>as</span> <span class='ident'>usize</span>;
                <span class='kw'>match</span> <span class='ident'>len</span>.<span class='ident'>cmp</span>(<span class='kw-2'>&amp;</span><span class='ident'>act_len</span>) {
                    <span class='ident'>Ordering</span>::<span class='ident'>Greater</span> <span class='op'>=&gt;</span> <span class='prelude-val'>None</span>,
                    <span class='ident'>Ordering</span>::<span class='ident'>Equal</span> <span class='op'>=&gt;</span> <span class='prelude-val'>Some</span>(<span class='ident'>v</span>),
                    <span class='ident'>Ordering</span>::<span class='ident'>Less</span> <span class='op'>=&gt;</span> <span class='macro'>panic</span><span class='macro'>!</span>(<span class='string'>&quot;Fingerprint buffer was corrupted!&quot;</span>),
                }
            }
        }
    }

    <span class='doccomment'>/// Writes certificate as PEM</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>write_pem</span><span class='op'>&lt;</span><span class='ident'>W</span><span class='op'>&gt;</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>writer</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>W</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span>(), <span class='ident'>SslError</span><span class='op'>&gt;</span>
        <span class='kw'>where</span> <span class='ident'>W</span>: <span class='ident'>Write</span>
    {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>mem_bio</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>MemBio</span>::<span class='ident'>new</span>());
        <span class='kw'>unsafe</span> {
            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>PEM_write_bio_X509</span>(<span class='ident'>mem_bio</span>.<span class='ident'>get_handle</span>(), <span class='self'>self</span>.<span class='ident'>handle</span>));
        }
        <span class='ident'>io</span>::<span class='ident'>copy</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>mem_bio</span>, <span class='ident'>writer</span>).<span class='ident'>map_err</span>(<span class='ident'>StreamError</span>).<span class='ident'>map</span>(<span class='op'>|</span>_<span class='op'>|</span> ())
    }
}

<span class='kw'>extern</span> <span class='string'>&quot;C&quot;</span> {
    <span class='kw'>fn</span> <span class='ident'>rust_X509_clone</span>(<span class='ident'>x509</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>X509</span>);
}

<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;ctx</span><span class='op'>&gt;</span> <span class='ident'>Clone</span> <span class='kw'>for</span> <span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;ctx</span><span class='op'>&gt;</span> {
    <span class='kw'>fn</span> <span class='ident'>clone</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;ctx</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> { <span class='ident'>rust_X509_clone</span>(<span class='self'>self</span>.<span class='ident'>handle</span>) }
        <span class='comment'>// FIXME: given that we now have refcounting control, &#39;owned&#39; should be uneeded, the &#39;ctx</span>
        <span class='comment'>// is probably also uneeded. We can remove both to condense the x509 api quite a bit</span>
        <span class='comment'>//</span>
        <span class='ident'>X509</span>::<span class='ident'>new</span>(<span class='self'>self</span>.<span class='ident'>handle</span>, <span class='bool-val'>true</span>)
    }
}

<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;ctx</span><span class='op'>&gt;</span> <span class='ident'>Drop</span> <span class='kw'>for</span> <span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;ctx</span><span class='op'>&gt;</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'>X509_free</span>(<span class='self'>self</span>.<span class='ident'>handle</span>) };
        }
    }
}

<span class='attribute'>#[<span class='ident'>allow</span>(<span class='ident'>dead_code</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>X509Name</span><span class='op'>&lt;</span><span class='lifetime'>&#39;x</span><span class='op'>&gt;</span> {
    <span class='ident'>x509</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;x</span> <span class='ident'>X509</span><span class='op'>&lt;</span><span class='lifetime'>&#39;x</span><span class='op'>&gt;</span>,
    <span class='ident'>name</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>X509_NAME</span>,
}

<span class='attribute'>#[<span class='ident'>allow</span>(<span class='ident'>dead_code</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>X509NameEntry</span><span class='op'>&lt;</span><span class='lifetime'>&#39;x</span><span class='op'>&gt;</span> {
    <span class='ident'>x509_name</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;x</span> <span class='ident'>X509Name</span><span class='op'>&lt;</span><span class='lifetime'>&#39;x</span><span class='op'>&gt;</span>,
    <span class='ident'>ne</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>X509_NAME_ENTRY</span>,
}

<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;x</span><span class='op'>&gt;</span> <span class='ident'>X509Name</span><span class='op'>&lt;</span><span class='lifetime'>&#39;x</span><span class='op'>&gt;</span> {
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>text_by_nid</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>nid</span>: <span class='ident'>Nid</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='ident'>SslString</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>loc</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>X509_NAME_get_index_by_NID</span>(<span class='self'>self</span>.<span class='ident'>name</span>, <span class='ident'>nid</span> <span class='kw'>as</span> <span class='ident'>c_int</span>, <span class='op'>-</span><span class='number'>1</span>);
            <span class='kw'>if</span> <span class='ident'>loc</span> <span class='op'>==</span> <span class='op'>-</span><span class='number'>1</span> {
                <span class='kw'>return</span> <span class='prelude-val'>None</span>;
            }

            <span class='kw'>let</span> <span class='ident'>ne</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>X509_NAME_get_entry</span>(<span class='self'>self</span>.<span class='ident'>name</span>, <span class='ident'>loc</span>);
            <span class='kw'>if</span> <span class='ident'>ne</span>.<span class='ident'>is_null</span>() {
                <span class='kw'>return</span> <span class='prelude-val'>None</span>;
            }

            <span class='kw'>let</span> <span class='ident'>asn1_str</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>X509_NAME_ENTRY_get_data</span>(<span class='ident'>ne</span>);
            <span class='kw'>if</span> <span class='ident'>asn1_str</span>.<span class='ident'>is_null</span>() {
                <span class='kw'>return</span> <span class='prelude-val'>None</span>;
            }

            <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>str_from_asn1</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>c_char</span> <span class='op'>=</span> <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>();
            <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>ASN1_STRING_to_UTF8</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>str_from_asn1</span>, <span class='ident'>asn1_str</span>);

            <span class='kw'>if</span> <span class='ident'>len</span> <span class='op'>&lt;</span> <span class='number'>0</span> {
                <span class='kw'>return</span> <span class='prelude-val'>None</span>;
            }

            <span class='macro'>assert</span><span class='macro'>!</span>(<span class='op'>!</span><span class='ident'>str_from_asn1</span>.<span class='ident'>is_null</span>());

            <span class='prelude-val'>Some</span>(<span class='ident'>SslString</span>::<span class='ident'>new</span>(<span class='ident'>str_from_asn1</span>, <span class='ident'>len</span>))
        }
    }
}

<span class='doccomment'>/// A certificate signing request</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>X509Req</span> {
    <span class='ident'>handle</span>: <span class='op'>*</span><span class='kw-2'>mut</span> <span class='ident'>ffi</span>::<span class='ident'>X509_REQ</span>,
}

<span class='kw'>impl</span> <span class='ident'>X509Req</span> {
    <span class='doccomment'>/// Creates new from handle</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'>X509_REQ</span>) <span class='op'>-&gt;</span> <span class='ident'>X509Req</span> {
        <span class='ident'>X509Req</span> { <span class='ident'>handle</span>: <span class='ident'>handle</span> }
    }

    <span class='doccomment'>/// Reads CSR from PEM</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>from_pem</span><span class='op'>&lt;</span><span class='ident'>R</span><span class='op'>&gt;</span>(<span class='ident'>reader</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>R</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>X509Req</span>, <span class='ident'>SslError</span><span class='op'>&gt;</span>
        <span class='kw'>where</span> <span class='ident'>R</span>: <span class='ident'>Read</span>
    {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>mem_bio</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>MemBio</span>::<span class='ident'>new</span>());
        <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>io</span>::<span class='ident'>copy</span>(<span class='ident'>reader</span>, <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>mem_bio</span>).<span class='ident'>map_err</span>(<span class='ident'>StreamError</span>));

        <span class='kw'>unsafe</span> {
            <span class='kw'>let</span> <span class='ident'>handle</span> <span class='op'>=</span> <span class='macro'>try_ssl_null</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>PEM_read_bio_X509_REQ</span>(<span class='ident'>mem_bio</span>.<span class='ident'>get_handle</span>(),
                                                                  <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>(),
                                                                  <span class='prelude-val'>None</span>,
                                                                  <span class='ident'>ptr</span>::<span class='ident'>null_mut</span>()));
            <span class='prelude-val'>Ok</span>(<span class='ident'>X509Req</span>::<span class='ident'>new</span>(<span class='ident'>handle</span>))
        }
    }

    <span class='doccomment'>/// Writes CSR as PEM</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>write_pem</span><span class='op'>&lt;</span><span class='ident'>W</span><span class='op'>&gt;</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>writer</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>W</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span>(), <span class='ident'>SslError</span><span class='op'>&gt;</span>
        <span class='kw'>where</span> <span class='ident'>W</span>: <span class='ident'>Write</span>
    {
        <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>mem_bio</span> <span class='op'>=</span> <span class='macro'>try</span><span class='macro'>!</span>(<span class='ident'>MemBio</span>::<span class='ident'>new</span>());
        <span class='kw'>unsafe</span> {
            <span class='macro'>try_ssl</span><span class='macro'>!</span>(<span class='ident'>ffi</span>::<span class='ident'>PEM_write_bio_X509_REQ</span>(<span class='ident'>mem_bio</span>.<span class='ident'>get_handle</span>(), <span class='self'>self</span>.<span class='ident'>handle</span>));
        }
        <span class='ident'>io</span>::<span class='ident'>copy</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>mem_bio</span>, <span class='ident'>writer</span>).<span class='ident'>map_err</span>(<span class='ident'>StreamError</span>).<span class='ident'>map</span>(<span class='op'>|</span>_<span class='op'>|</span> ())
    }
}

<span class='kw'>impl</span> <span class='ident'>Drop</span> <span class='kw'>for</span> <span class='ident'>X509Req</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'>unsafe</span> { <span class='ident'>ffi</span>::<span class='ident'>X509_REQ_free</span>(<span class='self'>self</span>.<span class='ident'>handle</span>) };
    }
}

<span class='doccomment'>/// A collection of X.509 extensions.</span>
<span class='doccomment'>///</span>
<span class='doccomment'>/// Upholds the invariant that a certificate MUST NOT include more than one</span>
<span class='doccomment'>/// instance of a particular extension, according to RFC 3280 §4.2. Also</span>
<span class='doccomment'>/// ensures that extensions are added to the certificate during signing</span>
<span class='doccomment'>/// in the order they were inserted, which is required for certain</span>
<span class='doccomment'>/// extensions like SubjectKeyIdentifier and AuthorityKeyIdentifier.</span>
<span class='kw'>struct</span> <span class='ident'>Extensions</span> {
    <span class='doccomment'>/// The extensions contained in the collection.</span>
    <span class='ident'>extensions</span>: <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Extension</span><span class='op'>&gt;</span>,
    <span class='doccomment'>/// A map of used to keep track of added extensions and their indexes in `self.extensions`.</span>
    <span class='ident'>indexes</span>: <span class='ident'>HashMap</span><span class='op'>&lt;</span><span class='ident'>ExtensionType</span>, <span class='ident'>usize</span><span class='op'>&gt;</span>,
}

<span class='kw'>impl</span> <span class='ident'>Extensions</span> {
    <span class='doccomment'>/// Creates a new `Extensions`.</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span>() <span class='op'>-&gt;</span> <span class='ident'>Extensions</span> {
        <span class='ident'>Extensions</span> {
            <span class='ident'>extensions</span>: <span class='macro'>vec</span><span class='macro'>!</span>[],
            <span class='ident'>indexes</span>: <span class='ident'>HashMap</span>::<span class='ident'>new</span>(),
        }
    }

    <span class='doccomment'>/// Adds a new `Extension`, replacing any existing one of the same</span>
    <span class='doccomment'>/// `ExtensionType`.</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>add</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>ext</span>: <span class='ident'>Extension</span>) {
        <span class='kw'>let</span> <span class='ident'>ext_type</span> <span class='op'>=</span> <span class='ident'>ext</span>.<span class='ident'>get_type</span>();

        <span class='kw'>if</span> <span class='kw'>let</span> <span class='prelude-val'>Some</span>(<span class='ident'>index</span>) <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>indexes</span>.<span class='ident'>get</span>(<span class='kw-2'>&amp;</span><span class='ident'>ext_type</span>) {
            <span class='self'>self</span>.<span class='ident'>extensions</span>[<span class='op'>*</span><span class='ident'>index</span>] <span class='op'>=</span> <span class='ident'>ext</span>;
            <span class='kw'>return</span>;
        }

        <span class='self'>self</span>.<span class='ident'>extensions</span>.<span class='ident'>push</span>(<span class='ident'>ext</span>);
        <span class='self'>self</span>.<span class='ident'>indexes</span>.<span class='ident'>insert</span>(<span class='ident'>ext_type</span>, <span class='self'>self</span>.<span class='ident'>extensions</span>.<span class='ident'>len</span>() <span class='op'>-</span> <span class='number'>1</span>);
    }

    <span class='doccomment'>/// Returns an `ExtensionsIter` for the collection.</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>iter</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>ExtensionsIter</span> {
        <span class='ident'>ExtensionsIter</span> {
            <span class='ident'>current</span>: <span class='number'>0</span>,
            <span class='ident'>extensions</span>: <span class='kw-2'>&amp;</span><span class='self'>self</span>.<span class='ident'>extensions</span>,
        }
    }
}

<span class='doccomment'>/// An iterator that iterates over `(ExtensionType, Extension)` for each</span>
<span class='doccomment'>/// extension in the collection.</span>
<span class='kw'>struct</span> <span class='ident'>ExtensionsIter</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
    <span class='ident'>current</span>: <span class='ident'>usize</span>,
    <span class='ident'>extensions</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='ident'>Vec</span><span class='op'>&lt;</span><span class='ident'>Extension</span><span class='op'>&gt;</span>,
}

<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> <span class='ident'>Iterator</span> <span class='kw'>for</span> <span class='ident'>ExtensionsIter</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
    <span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> (<span class='ident'>ExtensionType</span>, <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='ident'>Extension</span>);

    <span class='kw'>fn</span> <span class='ident'>next</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='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='self'>Self</span>::<span class='ident'>Item</span><span class='op'>&gt;</span> {
        <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>current</span> <span class='op'>&lt;</span> <span class='self'>self</span>.<span class='ident'>extensions</span>.<span class='ident'>len</span>() {
            <span class='kw'>let</span> <span class='ident'>ext</span> <span class='op'>=</span> <span class='kw-2'>&amp;</span><span class='self'>self</span>.<span class='ident'>extensions</span>[<span class='self'>self</span>.<span class='ident'>current</span>];

            <span class='self'>self</span>.<span class='ident'>current</span> <span class='op'>+=</span> <span class='number'>1</span>;

            <span class='prelude-val'>Some</span>((<span class='ident'>ext</span>.<span class='ident'>get_type</span>(), <span class='ident'>ext</span>))
        } <span class='kw'>else</span> {
            <span class='prelude-val'>None</span>
        }
    }
}

<span class='macro'>macro_rules</span><span class='macro'>!</span> <span class='ident'>make_validation_error</span>(
    (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>ok_val</span>:<span class='ident'>ident</span>, $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>:<span class='ident'>ident</span> <span class='op'>=</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>val</span>:<span class='ident'>ident</span>,)<span class='op'>+</span>) <span class='op'>=&gt;</span> (
        <span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Copy</span>, <span class='ident'>Clone</span>)]</span>
        <span class='kw'>pub</span> <span class='kw'>enum</span> <span class='ident'>X509ValidationError</span> {
            $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>,)<span class='op'>+</span>
            <span class='ident'>X509UnknownError</span>(<span class='ident'>c_int</span>)
        }

        <span class='kw'>impl</span> <span class='ident'>X509ValidationError</span> {
            <span class='attribute'>#[<span class='ident'>doc</span>(<span class='ident'>hidden</span>)]</span>
            <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>from_raw</span>(<span class='ident'>err</span>: <span class='ident'>c_int</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='ident'>X509ValidationError</span><span class='op'>&gt;</span> {
                <span class='kw'>match</span> <span class='ident'>err</span> {
                    <span class='ident'>ffi</span>::<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>ok_val</span> <span class='op'>=&gt;</span> <span class='prelude-val'>None</span>,
                    $(<span class='ident'>ffi</span>::<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>val</span> <span class='op'>=&gt;</span> <span class='prelude-val'>Some</span>(<span class='ident'>X509ValidationError</span>::<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>),)<span class='op'>+</span>
                    <span class='ident'>err</span> <span class='op'>=&gt;</span> <span class='prelude-val'>Some</span>(<span class='ident'>X509ValidationError</span>::<span class='ident'>X509UnknownError</span>(<span class='ident'>err</span>))
                }
            }
        }
    )
);

<span class='macro'>make_validation_error</span><span class='macro'>!</span>(<span class='ident'>X509_V_OK</span>,
    <span class='ident'>X509UnableToGetIssuerCert</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT</span>,
    <span class='ident'>X509UnableToGetCrl</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNABLE_TO_GET_CRL</span>,
    <span class='ident'>X509UnableToDecryptCertSignature</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE</span>,
    <span class='ident'>X509UnableToDecryptCrlSignature</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE</span>,
    <span class='ident'>X509UnableToDecodeIssuerPublicKey</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY</span>,
    <span class='ident'>X509CertSignatureFailure</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_CERT_SIGNATURE_FAILURE</span>,
    <span class='ident'>X509CrlSignatureFailure</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_CRL_SIGNATURE_FAILURE</span>,
    <span class='ident'>X509CertNotYetValid</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_CERT_NOT_YET_VALID</span>,
    <span class='ident'>X509CertHasExpired</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_CERT_HAS_EXPIRED</span>,
    <span class='ident'>X509CrlNotYetValid</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_CRL_NOT_YET_VALID</span>,
    <span class='ident'>X509CrlHasExpired</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_CRL_HAS_EXPIRED</span>,
    <span class='ident'>X509ErrorInCertNotBeforeField</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD</span>,
    <span class='ident'>X509ErrorInCertNotAfterField</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD</span>,
    <span class='ident'>X509ErrorInCrlLastUpdateField</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD</span>,
    <span class='ident'>X509ErrorInCrlNextUpdateField</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD</span>,
    <span class='ident'>X509OutOfMem</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_OUT_OF_MEM</span>,
    <span class='ident'>X509DepthZeroSelfSignedCert</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT</span>,
    <span class='ident'>X509SelfSignedCertInChain</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN</span>,
    <span class='ident'>X509UnableToGetIssuerCertLocally</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY</span>,
    <span class='ident'>X509UnableToVerifyLeafSignature</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE</span>,
    <span class='ident'>X509CertChainTooLong</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_CERT_CHAIN_TOO_LONG</span>,
    <span class='ident'>X509CertRevoked</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_CERT_REVOKED</span>,
    <span class='ident'>X509InvalidCA</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_INVALID_CA</span>,
    <span class='ident'>X509PathLengthExceeded</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_PATH_LENGTH_EXCEEDED</span>,
    <span class='ident'>X509InvalidPurpose</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_INVALID_PURPOSE</span>,
    <span class='ident'>X509CertUntrusted</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_CERT_UNTRUSTED</span>,
    <span class='ident'>X509CertRejected</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_CERT_REJECTED</span>,
    <span class='ident'>X509SubjectIssuerMismatch</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_SUBJECT_ISSUER_MISMATCH</span>,
    <span class='ident'>X509AkidSkidMismatch</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_AKID_SKID_MISMATCH</span>,
    <span class='ident'>X509AkidIssuerSerialMismatch</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH</span>,
    <span class='ident'>X509KeyusageNoCertsign</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_KEYUSAGE_NO_CERTSIGN</span>,
    <span class='ident'>X509UnableToGetCrlIssuer</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER</span>,
    <span class='ident'>X509UnhandledCriticalExtension</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION</span>,
    <span class='ident'>X509KeyusageNoCrlSign</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_KEYUSAGE_NO_CRL_SIGN</span>,
    <span class='ident'>X509UnhandledCriticalCrlExtension</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION</span>,
    <span class='ident'>X509InvalidNonCA</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_INVALID_NON_CA</span>,
    <span class='ident'>X509ProxyPathLengthExceeded</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED</span>,
    <span class='ident'>X509KeyusageNoDigitalSignature</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE</span>,
    <span class='ident'>X509ProxyCertificatesNotAllowed</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED</span>,
    <span class='ident'>X509InvalidExtension</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_INVALID_EXTENSION</span>,
    <span class='ident'>X509InavlidPolicyExtension</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_INVALID_POLICY_EXTENSION</span>,
    <span class='ident'>X509NoExplicitPolicy</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_NO_EXPLICIT_POLICY</span>,
    <span class='ident'>X509DifferentCrlScope</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_DIFFERENT_CRL_SCOPE</span>,
    <span class='ident'>X509UnsupportedExtensionFeature</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE</span>,
    <span class='ident'>X509UnnestedResource</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNNESTED_RESOURCE</span>,
    <span class='ident'>X509PermittedVolation</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_PERMITTED_VIOLATION</span>,
    <span class='ident'>X509ExcludedViolation</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_EXCLUDED_VIOLATION</span>,
    <span class='ident'>X509SubtreeMinmax</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_SUBTREE_MINMAX</span>,
    <span class='ident'>X509UnsupportedConstraintType</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE</span>,
    <span class='ident'>X509UnsupportedConstraintSyntax</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX</span>,
    <span class='ident'>X509UnsupportedNameSyntax</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_UNSUPPORTED_NAME_SYNTAX</span>,
    <span class='ident'>X509CrlPathValidationError</span><span class='op'>=</span> <span class='ident'>X509_V_ERR_CRL_PATH_VALIDATION_ERROR</span>,
    <span class='ident'>X509ApplicationVerification</span> <span class='op'>=</span> <span class='ident'>X509_V_ERR_APPLICATION_VERIFICATION</span>,
);

<span class='doccomment'>/// A collection of OpenSSL `GENERAL_NAME`s.</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>GeneralNames</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
    <span class='ident'>stack</span>: <span class='op'>*</span><span class='kw'>const</span> <span class='ident'>ffi</span>::<span class='ident'>stack_st_GENERAL_NAME</span>,
    <span class='ident'>m</span>: <span class='ident'>PhantomData</span><span class='op'>&lt;</span><span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> ()<span class='op'>&gt;</span>,
}

<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> <span class='ident'>GeneralNames</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
    <span class='doccomment'>/// Returns the number of `GeneralName`s in this structure.</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>len</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span> {
        <span class='kw'>unsafe</span> { (<span class='op'>*</span><span class='self'>self</span>.<span class='ident'>stack</span>).<span class='ident'>stack</span>.<span class='ident'>num</span> <span class='kw'>as</span> <span class='ident'>usize</span> }
    }

    <span class='doccomment'>/// Returns the specified `GeneralName`.</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// # Panics</span>
    <span class='doccomment'>///</span>
    <span class='doccomment'>/// Panics if `idx` is not less than `len()`.</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>get</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>idx</span>: <span class='ident'>usize</span>) <span class='op'>-&gt;</span> <span class='ident'>GeneralName</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>idx</span> <span class='op'>&lt;</span> <span class='self'>self</span>.<span class='ident'>len</span>());

            <span class='ident'>GeneralName</span> {
                <span class='ident'>name</span>: <span class='op'>*</span>(<span class='op'>*</span><span class='self'>self</span>.<span class='ident'>stack</span>).<span class='ident'>stack</span>.<span class='ident'>data</span>.<span class='ident'>offset</span>(<span class='ident'>idx</span> <span class='kw'>as</span> <span class='ident'>isize</span>) <span class='kw'>as</span> <span class='op'>*</span><span class='kw'>const</span> <span class='ident'>ffi</span>::<span class='ident'>GENERAL_NAME</span>,
                <span class='ident'>m</span>: <span class='ident'>PhantomData</span>,
            }
        }
    }

    <span class='doccomment'>/// Returns an iterator over the `GeneralName`s in this structure.</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>iter</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>GeneralNamesIter</span> {
        <span class='ident'>GeneralNamesIter</span> {
            <span class='ident'>names</span>: <span class='self'>self</span>,
            <span class='ident'>idx</span>: <span class='number'>0</span>,
        }
    }
}

<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> <span class='ident'>IntoIterator</span> <span class='kw'>for</span> <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='ident'>GeneralNames</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
    <span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>GeneralName</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>;
    <span class='kw'>type</span> <span class='ident'>IntoIter</span> <span class='op'>=</span> <span class='ident'>GeneralNamesIter</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>;

    <span class='kw'>fn</span> <span class='ident'>into_iter</span>(<span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>GeneralNamesIter</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
        <span class='self'>self</span>.<span class='ident'>iter</span>()
    }
}

<span class='doccomment'>/// An iterator over OpenSSL `GENERAL_NAME`s.</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>GeneralNamesIter</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
    <span class='ident'>names</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> <span class='ident'>GeneralNames</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>,
    <span class='ident'>idx</span>: <span class='ident'>usize</span>,
}

<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> <span class='ident'>Iterator</span> <span class='kw'>for</span> <span class='ident'>GeneralNamesIter</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
    <span class='kw'>type</span> <span class='ident'>Item</span> <span class='op'>=</span> <span class='ident'>GeneralName</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>;

    <span class='kw'>fn</span> <span class='ident'>next</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='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='self'>Self</span>::<span class='ident'>Item</span><span class='op'>&gt;</span> {
        <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>idx</span> <span class='op'>&lt;</span> <span class='self'>self</span>.<span class='ident'>names</span>.<span class='ident'>len</span>() {
            <span class='kw'>let</span> <span class='ident'>name</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>names</span>.<span class='ident'>get</span>(<span class='self'>self</span>.<span class='ident'>idx</span>);
            <span class='self'>self</span>.<span class='ident'>idx</span> <span class='op'>+=</span> <span class='number'>1</span>;
            <span class='prelude-val'>Some</span>(<span class='ident'>name</span>)
        } <span class='kw'>else</span> {
            <span class='prelude-val'>None</span>
        }
    }

    <span class='kw'>fn</span> <span class='ident'>size_hint</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> (<span class='ident'>usize</span>, <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='ident'>usize</span><span class='op'>&gt;</span>) {
        <span class='kw'>let</span> <span class='ident'>size</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>names</span>.<span class='ident'>len</span>() <span class='op'>-</span> <span class='self'>self</span>.<span class='ident'>idx</span>;
        (<span class='ident'>size</span>, <span class='prelude-val'>Some</span>(<span class='ident'>size</span>))
    }
}

<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> <span class='ident'>ExactSizeIterator</span> <span class='kw'>for</span> <span class='ident'>GeneralNamesIter</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {}

<span class='doccomment'>/// An OpenSSL `GENERAL_NAME`.</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>GeneralName</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
    <span class='ident'>name</span>: <span class='op'>*</span><span class='kw'>const</span> <span class='ident'>ffi</span>::<span class='ident'>GENERAL_NAME</span>,
    <span class='ident'>m</span>: <span class='ident'>PhantomData</span><span class='op'>&lt;</span><span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> ()<span class='op'>&gt;</span>,
}

<span class='kw'>impl</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> <span class='ident'>GeneralName</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span> {
    <span class='doccomment'>/// Returns the contents of this `GeneralName` if it is a `dNSName`.</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>dnsname</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='kw-2'>&amp;</span><span class='ident'>str</span><span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>if</span> (<span class='op'>*</span><span class='self'>self</span>.<span class='ident'>name</span>).<span class='ident'>type_</span> <span class='op'>!=</span> <span class='ident'>ffi</span>::<span class='ident'>GEN_DNS</span> {
                <span class='kw'>return</span> <span class='prelude-val'>None</span>;
            }

            <span class='kw'>let</span> <span class='ident'>ptr</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>ASN1_STRING_data</span>((<span class='op'>*</span><span class='self'>self</span>.<span class='ident'>name</span>).<span class='ident'>d</span> <span class='kw'>as</span> <span class='op'>*</span><span class='kw-2'>mut</span> _);
            <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>ASN1_STRING_length</span>((<span class='op'>*</span><span class='self'>self</span>.<span class='ident'>name</span>).<span class='ident'>d</span> <span class='kw'>as</span> <span class='op'>*</span><span class='kw-2'>mut</span> _);

            <span class='kw'>let</span> <span class='ident'>slice</span> <span class='op'>=</span> <span class='ident'>slice</span>::<span class='ident'>from_raw_parts</span>(<span class='ident'>ptr</span> <span class='kw'>as</span> <span class='op'>*</span><span class='kw'>const</span> <span class='ident'>u8</span>, <span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
            <span class='comment'>// dNSNames are stated to be ASCII (specifically IA5). Hopefully</span>
            <span class='comment'>// OpenSSL checks that when loading a certificate but if not we&#39;ll</span>
            <span class='comment'>// use this instead of from_utf8_unchecked just in case.</span>
            <span class='ident'>str</span>::<span class='ident'>from_utf8</span>(<span class='ident'>slice</span>).<span class='ident'>ok</span>()
        }
    }

    <span class='doccomment'>/// Returns the contents of this `GeneralName` if it is an `iPAddress`.</span>
    <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>ipaddress</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='prelude-ty'>Option</span><span class='op'>&lt;</span><span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]<span class='op'>&gt;</span> {
        <span class='kw'>unsafe</span> {
            <span class='kw'>if</span> (<span class='op'>*</span><span class='self'>self</span>.<span class='ident'>name</span>).<span class='ident'>type_</span> <span class='op'>!=</span> <span class='ident'>ffi</span>::<span class='ident'>GEN_IPADD</span> {
                <span class='kw'>return</span> <span class='prelude-val'>None</span>;
            }

            <span class='kw'>let</span> <span class='ident'>ptr</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>ASN1_STRING_data</span>((<span class='op'>*</span><span class='self'>self</span>.<span class='ident'>name</span>).<span class='ident'>d</span> <span class='kw'>as</span> <span class='op'>*</span><span class='kw-2'>mut</span> _);
            <span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>ffi</span>::<span class='ident'>ASN1_STRING_length</span>((<span class='op'>*</span><span class='self'>self</span>.<span class='ident'>name</span>).<span class='ident'>d</span> <span class='kw'>as</span> <span class='op'>*</span><span class='kw-2'>mut</span> _);

            <span class='prelude-val'>Some</span>(<span class='ident'>slice</span>::<span class='ident'>from_raw_parts</span>(<span class='ident'>ptr</span> <span class='kw'>as</span> <span class='op'>*</span><span class='kw'>const</span> <span class='ident'>u8</span>, <span class='ident'>len</span> <span class='kw'>as</span> <span class='ident'>usize</span>))
        }
    }
}

<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_negative_serial</span>() {
    <span class='comment'>// I guess that&#39;s enough to get a random negative number</span>
    <span class='kw'>for</span> _ <span class='kw'>in</span> <span class='number'>0</span>..<span class='number'>1000</span> {
        <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>X509Generator</span>::<span class='ident'>random_serial</span>() <span class='op'>&gt;</span> <span class='number'>0</span>,
                <span class='string'>&quot;All serials should be positive&quot;</span>);
    }
}
</pre>
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