source: clfs-sysroot/BOOK/final-system/common/gzip.xml @ 7a47cec

Last change on this file since 7a47cec was 7a47cec, checked in by Jim Gifford <clfs@…>, 13 years ago

r3906@server (orig r1757): jciccone | 2006-06-09 17:11:23 -0700
2 command fixes

  • Property mode set to 100644
File size: 8.2 KB
Line 
1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
3  "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
4  <!ENTITY % general-entities SYSTEM "../../general.ent">
5  %general-entities;
6]>
7
8<sect1 id="ch-system-gzip" role="wrap">
9  <?dbhtml filename="gzip.html"?>
10
11  <title>Gzip-&gzip-version;</title>
12
13  <indexterm zone="ch-system-gzip">
14    <primary sortas="a-Gzip">Gzip</primary>
15  </indexterm>
16
17  <sect2 role="package">
18    <title/>
19
20    <para>The Gzip package contains programs for compressing and decompressing
21    files.</para>
22
23  </sect2>
24
25  <sect2 role="installation">
26    <title>Installation of Gzip</title>
27
28    <para os="p1">The following patch fixes two security vulnerabilities in Gzip.
29    First, a path traversal bug when using the <option>-N</option> option
30    (CAN-2005-1228) Second, a race condition in the file permission restore
31    code (CAN-2005-0998)</para>
32
33<screen os="p2"><userinput>patch -Np1 -i ../&gzip-security_fix-patch;</userinput></screen>
34
35    <para os="a">Prepare Gzip for compilation:</para>
36
37<screen os="b"><userinput>./configure --prefix=/usr --host=${LFS_TARGET}</userinput></screen>
38
39    <para os="c">The <command>gzexe</command> script has the location of the
40    <command>gzip</command> binary hard-wired into it. Because the
41    location of the binary is changed later, the following command ensures
42    that the new location gets placed into the script:</para>
43
44<screen os="d"><userinput>chmod +w gzexe.in
45cp gzexe.in{,.orig}
46sed 's@"BINDIR"@/bin@g' gzexe.in.orig &gt; gzexe.in</userinput></screen>
47
48    <para os="e">Compile the package:</para>
49
50<screen os="f"><userinput>make</userinput></screen>
51
52    <para os="g">Install the package:</para>
53
54<screen os="h"><userinput>make DESTDIR=${LFS} install</userinput></screen>
55
56    <para os="i">Move the <command>gzip</command> program to the <filename
57    class="directory">/bin</filename> directory and create some commonly
58    used symlinks to it:</para>
59
60<screen os="j"><userinput>mv -v ${LFS}/usr/bin/gzip ${LFS}/bin
61rm -v ${LFS}/usr/bin/{gunzip,zcat}
62ln -sv gzip ${LFS}/bin/gunzip
63ln -sv gzip ${LFS}/bin/zcat
64ln -sv gzip ${LFS}/bin/compress
65ln -sv gunzip ${LFS}/bin/uncompress</userinput></screen>
66
67  </sect2>
68
69  <sect2 id="contents-gzip" role="content">
70    <title>Contents of Gzip</title>
71
72    <segmentedlist>
73      <segtitle>Installed programs</segtitle>
74
75      <seglistitem>
76        <seg>compress (link to gzip), gunzip (link to gzip), gzexe, gzip,
77        uncompress (link to gunzip), zcat (link to gzip), zcmp, zdiff,
78        zegrep, zfgrep, zforce, zgrep, zless, zmore, and znew</seg>
79      </seglistitem>
80    </segmentedlist>
81
82    <variablelist>
83      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
84      <?dbfo list-presentation="list"?>
85      <?dbhtml list-presentation="table"?>
86
87      <varlistentry id="compress">
88        <term><command>compress</command></term>
89        <listitem>
90          <para>Compresses and decompresses files</para>
91          <indexterm zone="ch-system-gzip compress">
92            <primary sortas="b-compress">compress</primary>
93          </indexterm>
94        </listitem>
95      </varlistentry>
96
97      <varlistentry id="gunzip">
98        <term><command>gunzip</command></term>
99        <listitem>
100          <para>Decompresses gzipped files</para>
101          <indexterm zone="ch-system-gzip gunzip">
102            <primary sortas="b-gunzip">gunzip</primary>
103          </indexterm>
104        </listitem>
105      </varlistentry>
106
107      <varlistentry id="gzexe">
108        <term><command>gzexe</command></term>
109        <listitem>
110          <para>Creates self-decompressing executable files</para>
111          <indexterm zone="ch-system-gzip gzexe">
112            <primary sortas="b-gzexe">gzexe</primary>
113          </indexterm>
114        </listitem>
115      </varlistentry>
116
117      <varlistentry id="gzip">
118        <term><command>gzip</command></term>
119        <listitem>
120          <para>Compresses the given files using Lempel-Ziv (LZ77) coding</para>
121          <indexterm zone="ch-system-gzip gzip">
122            <primary sortas="b-gzip">gzip</primary>
123          </indexterm>
124        </listitem>
125      </varlistentry>
126
127      <varlistentry id="uncompress">
128        <term><command>uncompress</command></term>
129        <listitem>
130          <para>Decompresses compressed files</para>
131          <indexterm zone="ch-system-gzip uncompress">
132            <primary sortas="b-uncompress">uncompress</primary>
133          </indexterm>
134        </listitem>
135      </varlistentry>
136
137      <varlistentry id="zcat">
138        <term><command>zcat</command></term>
139        <listitem>
140          <para>Decompresses the given gzipped files to standard output</para>
141          <indexterm zone="ch-system-gzip zcat">
142            <primary sortas="b-zcat">zcat</primary>
143          </indexterm>
144        </listitem>
145      </varlistentry>
146
147      <varlistentry id="zcmp">
148        <term><command>zcmp</command></term>
149        <listitem>
150          <para>Runs <command>cmp</command> on gzipped files</para>
151          <indexterm zone="ch-system-gzip zcmp">
152            <primary sortas="b-zcmp">zcmp</primary>
153          </indexterm>
154        </listitem>
155      </varlistentry>
156
157      <varlistentry id="zdiff">
158        <term><command>zdiff</command></term>
159        <listitem>
160          <para>Runs <command>diff</command> on gzipped files</para>
161          <indexterm zone="ch-system-gzip zdiff">
162            <primary sortas="b-zdiff">zdiff</primary>
163          </indexterm>
164        </listitem>
165      </varlistentry>
166
167      <varlistentry id="zegrep">
168        <term><command>zegrep</command></term>
169        <listitem>
170          <para>Runs <command>egrep</command> on gzipped files</para>
171          <indexterm zone="ch-system-gzip zegrep">
172            <primary sortas="b-zegrep">zegrep</primary>
173          </indexterm>
174        </listitem>
175      </varlistentry>
176
177      <varlistentry id="zfgrep">
178        <term><command>zfgrep</command></term>
179        <listitem>
180          <para>Runs <command>fgrep</command> on gzipped files</para>
181          <indexterm zone="ch-system-gzip zfgrep">
182            <primary sortas="b-zfgrep">zfgrep</primary>
183          </indexterm>
184        </listitem>
185      </varlistentry>
186
187      <varlistentry id="zforce">
188        <term><command>zforce</command></term>
189        <listitem>
190          <para>Forces a <filename class="extension">.gz</filename> extension on
191          all given files that are gzipped files, so that <command>gzip</command>
192          will not compress them again; this can be useful when file names were
193          truncated during a file transfer</para>
194          <indexterm zone="ch-system-gzip zforce">
195            <primary sortas="b-zforce">zforce</primary>
196          </indexterm>
197        </listitem>
198      </varlistentry>
199
200      <varlistentry id="zgrep">
201        <term><command>zgrep</command></term>
202        <listitem>
203          <para>Runs <command>grep</command> on gzipped files</para>
204          <indexterm zone="ch-system-gzip zgrep">
205            <primary sortas="b-zgrep">zgrep</primary>
206          </indexterm>
207        </listitem>
208      </varlistentry>
209
210      <varlistentry id="zless">
211        <term><command>zless</command></term>
212        <listitem>
213          <para>Runs <command>less</command> on gzipped files</para>
214          <indexterm zone="ch-system-gzip zless">
215            <primary sortas="b-zless">zless</primary>
216          </indexterm>
217        </listitem>
218      </varlistentry>
219
220      <varlistentry id="zmore">
221        <term><command>zmore</command></term>
222        <listitem>
223          <para>Runs <command>more</command> on gzipped files</para>
224          <indexterm zone="ch-system-gzip zmore">
225            <primary sortas="b-zmore">zmore</primary>
226          </indexterm>
227        </listitem>
228      </varlistentry>
229
230      <varlistentry id="znew">
231        <term><command>znew</command></term>
232        <listitem>
233          <para>Re-compresses files from <command>compress</command> format to
234          <command>gzip</command> format&mdash;<filename
235          class="extension">.Z</filename> to <filename
236          class="extension">.gz</filename></para>
237          <indexterm zone="ch-system-gzip znew">
238            <primary sortas="b-znew">znew</primary>
239          </indexterm>
240        </listitem>
241      </varlistentry>
242
243    </variablelist>
244
245  </sect2>
246
247</sect1>
Note: See TracBrowser for help on using the repository browser.