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5cd0959daa
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@2592 af4574ff-66df-0310-9fd7-8a98e5e911e0
108 lines
3.6 KiB
XML
108 lines
3.6 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!ENTITY ed-download-http "http://ftp.gnu.org/pub/gnu/ed/ed-&ed-version;.tar.gz">
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<!ENTITY ed-download-ftp "ftp://ftp.gnu.org/pub/gnu/ed/ed-&ed-version;.tar.gz">
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<!ENTITY ed-size "182 KB">
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<!ENTITY ed-buildsize "3.1 MB">
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<!ENTITY ed-time "0.10 SBU">
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]>
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<sect1 id="ed" xreflabel="Ed-&ed-version;">
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<?dbhtml filename="ed.html"?>
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<title>Ed-&ed-version;</title>
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<sect2>
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<title>Introduction to <application>Ed</application></title>
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<para><application>Ed</application> is a line-oriented text editor. It
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is used to create, display, modify and otherwise manipulate text files,
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both interactively and via shell scripts. Ed isn't something which many
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people use. It's described here because it can be used by the patch
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program if you encounter an ed-based patch file. This happens rarely
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because diff-based patches are preferred these days.</para>
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<sect3><title>Package information</title>
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<itemizedlist spacing="compact">
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<listitem><para>Download (HTTP): <ulink url="&ed-download-http;"/></para></listitem>
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<listitem><para>Download (FTP): <ulink url="&ed-download-ftp;"/></para></listitem>
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<listitem><para>Download size: &ed-size;</para></listitem>
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<listitem><para>Estimated Disk space required: &ed-buildsize;</para></listitem>
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<listitem><para>Estimated build time: &ed-time;</para></listitem></itemizedlist>
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</sect3>
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<sect3><title>Additional downloads</title>
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<itemizedlist spacing="compact">
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<listitem><para>Required Patch: <ulink
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url="&patch-root;/ed-&ed-version;-mkstemp-1.patch"/></para></listitem>
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</itemizedlist></sect3>
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</sect2>
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<sect2>
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<title>Installation of <application>Ed</application></title>
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<para><application>Ed</application> normally uses the
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<emphasis>mktemp</emphasis> function to create temporary files in
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<filename class="directory">/tmp</filename>, but this function contains
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a vulnerability (see the section on Temporary Files at
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<ulink url="http://en.tldp.org/HOWTO/Secure-Programs-HOWTO/avoid-race.html"/>).
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Apply the following patch to make <application>Ed</application> use
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<emphasis>mkstemp</emphasis> instead, a secure way to create temporary
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files:</para>
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<screen><userinput><command>patch -Np1 -i ../ed-&ed-version;-mkstemp-1.patch</command></userinput></screen>
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<para>Install <application>Ed</application> by running the following
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commands:</para>
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<screen><userinput><command>./configure --prefix=/usr --exec-prefix="" &&
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make &&
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make install</command></userinput></screen>
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</sect2>
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<sect2>
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<title>Command explanations</title>
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<para><parameter>--exec-prefix=""</parameter>: This forces the programs
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to be installed into the <filename class="directory">/bin</filename>
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directory. Having the programs available there is useful in the event of
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the <filename class="directory">/usr</filename> partition being
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unavailable.</para>
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</sect2>
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<sect2>
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<title>Contents</title>
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<para>The <application>Ed</application> package contains
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<command>ed</command> and
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<command>red</command>.</para>
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</sect2>
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<sect2><title>Description</title>
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<sect3><title>ed</title>
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<para><command>ed</command>
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is a line-oriented text editor.
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</para></sect3>
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<sect3><title>red</title>
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<para><command>red</command>
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is a restricted ed—it can only edit files in the current directory
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and cannot execute shell commands.
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</para></sect3>
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</sect2>
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</sect1>
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