source: networking/netlibs/curl.xml@ 1e62b33

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../../general.ent">
  %general-entities;

  <!ENTITY curl-download-http
  "http://curl.haxx.se/download/curl-&curl-version;.tar.bz2">
  <!--<!ENTITY curl-download-ftp
  "ftp://gd.tuwien.ac.at/utils/archivers/curl/curl-&curl-version;.tar.bz2">-->
  <!ENTITY curl-download-ftp  " ">
  <!ENTITY curl-md5sum        "f0303d47d9d3e6e4f08c2863c6504823">
  <!ENTITY curl-size          "2.4 MB">
  <!ENTITY curl-buildsize     "31 MB">
  <!ENTITY curl-time          "0.5 SBU">
]>

<sect1 id="curl" xreflabel="cURL-&curl-version;">
  <?dbhtml filename="curl.html"?>

  <sect1info>
    <othername>$LastChangedBy$</othername>
    <date>$Date$</date>
  </sect1info>

  <title>cURL-&curl-version;</title>

  <indexterm zone="curl">
    <primary sortas="a-cURL">cURL</primary>
  </indexterm>

  <sect2 role="package">
    <title>Introduction to cURL</title>

    <para>The <application>cURL</application> package contains
    <command>curl</command> and its support library
    <filename class="libraryfile">libcurl</filename>. This is useful for
    transferring files with URL syntax to any of the following protocols:
    FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, LDAP, LDAPS and FILE.
    This ability to both download and upload files can be incorporated into
    other programs to support functions like streaming media.</para>

    &lfs71_checked;

    <bridgehead renderas="sect3">Package Information</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>Download (HTTP): <ulink url="&curl-download-http;"/></para>
      </listitem>
      <listitem>
        <para>Download (FTP): <ulink url="&curl-download-ftp;"/></para>
      </listitem>
      <listitem>
        <para>Download MD5 sum: &curl-md5sum;</para>
      </listitem>
      <listitem>
        <para>Download size: &curl-size;</para>
      </listitem>
      <listitem>
        <para>Estimated disk space required: &curl-buildsize;</para>
      </listitem>
      <listitem>
        <para>Estimated build time: &curl-time;</para>
      </listitem>
    </itemizedlist>

    <bridgehead renderas="sect3">cURL Dependencies</bridgehead>

    <bridgehead renderas="sect4">Optional</bridgehead>
    <para role="optional"><!-- <xref linkend="pkgconfig"/>, -->
    <xref linkend="openssl"/> or <xref linkend="gnutls"/>,
    <xref linkend="openldap"/>,
    <xref linkend="libidn"/>,
    <xref linkend="mitkrb"/>,
    <ulink url="http://www.libssh2.org">libssh2</ulink>
    (for secure transfers),
    <ulink url="http://www.pdc.kth.se/kth-krb/">krb4</ulink>,
    <ulink
    url="http://www.vintela.com/resources/topics/spnego/">SPNEGO</ulink>, and
    <ulink url="http://daniel.haxx.se/projects/c-ares/">c-ares</ulink></para>

    <bridgehead renderas="sect4">Optional for Running the Test
    Suite</bridgehead>
    <para role="optional"><xref linkend="stunnel"/> (for the HTTPS and FTPS
    tests)</para>

    <para condition="html" role="usernotes">User Notes:
    <ulink url="&blfs-wiki;/curl"/></para>
  </sect2>

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

    <para>Install <application>cURL</application> by running the following
    commands:</para>

<screen><userinput>sed -i '/--static-libs)/{N;s#echo .*#echo #;}' curl-config.in &amp;&amp;
./configure --prefix=/usr --disable-static --with-ca-path=/etc/ssl/certs &amp;&amp;
make</userinput></screen>

    <para>To test the results, issue: <command>make check</command>. Note that
    if you have <application>Stunnel</application> and
    <application>TCP Wrapper</application> installed and you wish to perform
    the HTTPS tests, you'll need to have an unrestrictive
    <filename>/etc/hosts.deny</filename> file.</para>

    <para>Now, as the <systemitem class="username">root</systemitem>
    user:</para>

<screen role="root"><userinput>make install &amp;&amp;
find docs \( -name "Makefile*" -o -name "*.1" -o -name "*.3" \) -exec rm {} \; &amp;&amp;
install -v -d -m755 /usr/share/doc/curl-&curl-version; &amp;&amp;
cp -v -R docs/*     /usr/share/doc/curl-&curl-version;</userinput></screen>
  </sect2>

  <sect2 role="commands">
    <title>Command Explanations</title>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../../xincludes/static-libraries.xml"/>

    <para>
      <command>sed -i '/--static-libs)/{N;s#echo .*#echo #;}'
      curl-config.in</command>: As we've not installed the static libraries,
      this sed removes the static libs line from curl-config as it might
      otherwise confuse other applications<!--such as pycurl-->.
    </para>

    <para><option>--with-ca-path=/etc/ssl/certs</option>: This option sets the
    directory to use as the path to the SSL certificates. If you've not
    installed <xref linkend="openssl"/> or <xref linkend="gnutls"/> and
    the <xref linkend="cacerts"/> you can remove this option.</para>

    <para><option>--with-gssapi</option>:
    This parameter adds <application>Kerberos 5</application> support to
    <filename class="libraryfile">libcurl</filename>.</para>

    <para><option>--with-libssh2</option>:
    This parameter adds SSH2 protocol support to
    <filename class="libraryfile">libcurl</filename>.</para>

    <para><option>--without-ssl --with-gnutls</option>:
    To build with <application>GnuTLS</application>
    support instead of <application>OpenSSL</application> for SSL/TLS.</para>

    <para><command>find docs \( -name "Makefile*" -o -name "*.1" -o -name "*.3"
    \) -exec rm {} \;</command>: This command removes
    <filename>Makefiles</filename> and man files from the documentation
    directory that would otherwise be installed by the commands that
    follow.</para>
  </sect2>

  <sect2 role="content">
    <title>Contents</title>

    <segmentedlist>
      <segtitle>Installed Programs</segtitle>
      <segtitle>Installed Library</segtitle>
      <segtitle>Installed Directories</segtitle>

      <seglistitem>
        <seg>curl and curl-config</seg>
        <seg>libcurl.so</seg>
        <seg>/usr/include/curl and /usr/share/doc/curl-&curl-version;</seg>
      </seglistitem>
    </segmentedlist>

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

      <varlistentry id="curl-prog">
        <term><command>curl</command></term>
        <listitem>
         <para>is a command line tool for transferring files with URL syntax.
         </para>
          <indexterm zone="curl curl-prog">
            <primary sortas="b-curl">curl</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="curl-config">
        <term><command>curl-config</command></term>
        <listitem>
          <para>prints information about the last compile, like libraries
          linked to and prefix setting.</para>
          <indexterm zone="curl curl-config">
            <primary sortas="b-curl-config">curl-config</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libcurl">
        <term><filename class="libraryfile">libcurl.so</filename></term>
        <listitem>
          <para>provides the API functions required by
          <command>curl</command> and other programs.</para>
          <indexterm zone="curl libcurl">
            <primary sortas="c-libcurl">libcurl.so</primary>
          </indexterm>
        </listitem>
      </varlistentry>
    </variablelist>
  </sect2>
</sect1>