lfs-book/chapter06/libcap2.xml

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<sect1 id="ch-system-libcap2" role="wrap">
  <?dbhtml filename="libcap2.html"?>

  <sect1info condition="script">
    <productname>libcap2</productname>
    <productnumber>&libcap2-version;</productnumber>
    <address>&libcap2-url;</address>
  </sect1info>

  <title>Libcap2-&libcap2-version;</title>

  <indexterm zone="ch-system-libcap2">
    <primary sortas="a-Libcap2">Libcap2</primary>
  </indexterm>

  <sect2 role="package">
    <title/>

    <para>The Libcap2 package implements the user-space interfaces to the POSIX
    1003.1e capabilities available in Linux kernels. These capabilities are a
    partitioning of the all powerful root privilege into a set of distinct
    privileges.</para>

    <segmentedlist>
      <segtitle>&buildtime;</segtitle>
      <segtitle>&diskspace;</segtitle>

      <seglistitem>
        <seg>&libcap2-ch6-sbu;</seg>
        <seg>&libcap2-ch6-du;</seg>
      </seglistitem>
    </segmentedlist>

  </sect2>

  <sect2 role="installation">
    <title>Installation of Libcap2</title>

    <para>Compile the package:</para>

<screen><userinput remap="make">make</userinput></screen>

    <para>This package does not come with a test suite.</para>

    <para>Install the package:</para>

<screen><userinput remap="install">make RAISE_SETFCAP=no install</userinput></screen>

  </sect2>

  <sect2 id="contents-libcap2" role="content">
    <title>Contents of Libcap2</title>

    <segmentedlist>
      <segtitle>Installed programs</segtitle>
      <segtitle>Installed library</segtitle>

      <seglistitem>
        <seg>capsh, getcap, getpcaps, and setcap</seg>
        <seg>libcap2.{so,a}</seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="capsh">
        <term><command>capsh</command></term>
        <listitem>
          <para>A shell wrapper to explore and constrain capability support</para>
          <indexterm zone="ch-system-libcap2 capsh">
            <primary sortas="b-capsh">capsh</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="getcap">
        <term><command>getcap</command></term>
        <listitem>
          <para>Examines file capabilities</para>
          <indexterm zone="ch-system-libcap2 getcap">
            <primary sortas="b-getcap">getcap</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="getpcaps">
        <term><command>getpcaps</command></term>
        <listitem>
          <para>Displays the capabilities on the queried process(es)</para>
          <indexterm zone="ch-system-libcap2 getpcaps">
            <primary sortas="b-getpcaps">getpcaps</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libcap2">
        <term><filename class="libraryfile">libcap2.{so,a}</filename></term>
        <listitem>
          <para>Contains the libcap2 API functions</para>
          <indexterm zone="ch-system-libcap2 libcap2">
            <primary sortas="c-libcap2">libcap2</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>