source: chapter06/libcap.xml@ 9aa28c4

multilib-10.1 multilib-before-cross
Last change on this file since 9aa28c4 was 9aa28c4, checked in by Thomas Trepl <thomas@…>, 22 months ago

Add missing chmod

git-svn-id: http://svn.linuxfromscratch.org/LFS/branches/multilib@11797 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-system-libcap" role="wrap">
9 <?dbhtml filename="libcap.html"?>
10
11 <sect1info condition="script">
12 <productname>libcap</productname>
13 <productnumber>&libcap-version;</productnumber>
14 <address>&libcap-url;</address>
15 </sect1info>
16
17 <title>Libcap-&libcap-version;</title>
18
19 <indexterm zone="ch-system-libcap">
20 <primary sortas="a-Libcap">Libcap</primary>
21 </indexterm>
22
23 <sect2 role="package">
24 <title/>
25
26 <para>The Libcap package implements the user-space interfaces to the POSIX
27 1003.1e capabilities available in Linux kernels. These capabilities are a
28 partitioning of the all powerful root privilege into a set of distinct
29 privileges.</para>
30
31 <segmentedlist>
32 <segtitle>&buildtime;</segtitle>
33 <segtitle>&diskspace;</segtitle>
34
35 <seglistitem>
36 <seg>&libcap-ch6-sbu;</seg>
37 <seg>&libcap-ch6-du;</seg>
38 </seglistitem>
39 </segmentedlist>
40
41 </sect2>
42
43 <sect2 role="installation">
44 <title>Installation of Libcap</title>
45
46 <para>Prevent a static library from being installed:</para>
47
48<screen><userinput remap="pre">sed -i '/install.*STACAPLIBNAME/d' libcap/Makefile</userinput></screen>
49
50 <para>Compile the package:</para>
51
52<screen><userinput remap="make">make lib=lib</userinput></screen>
53
54 <variablelist>
55 <title>The meaning of the make option:</title>
56
57 <varlistentry>
58 <term><parameter>lib=lib</parameter></term>
59 <listitem>
60 <para>This parameter sets the library directory to
61 <filename>/lib</filename> rather than
62 <filename>/lib64</filename> on x86_64. It has no effect on
63 x86.</para>
64 </listitem>
65 </varlistentry>
66 </variablelist>
67
68 <para>To test the results, issue:</para>
69
70<screen><userinput remap="test">make test</userinput></screen>
71
72 <para>Install the package and do some cleanup:</para>
73
74<screen><userinput remap="install">make lib=lib install
75chmod -v 755 /lib/libcap.so.&libcap-version;
76mv -v /lib/libpsx.a /usr/lib
77rm -v /lib/libcap.so
78ln -sfv ../../lib/libcap.so.2 /usr/lib/libcap.so</userinput></screen>
79
80 </sect2>
81
82 <sect2 arch="ml_32,ml_all" role="installation">
83 <title>Installation of Libcap - 32-bit</title>
84
85 <para>Clean previous build:</para>
86
87<screen><userinput remap="pre">make distclean</userinput></screen>
88
89 <para>Compile the package:</para>
90
91<screen><userinput remap="make">make CC="gcc -m32 -march=i686"</userinput></screen>
92
93 <para>Install the package:</para>
94
95<screen><userinput remap="install">make lib=lib32 prefix=$PWD/DESTDIR/usr -C libcap install
96cp -Rv DESTDIR/usr/lib32/* /usr/lib32
97chmod -v 755 /usr/lib32/libcap.so.&libcap-version;
98rm -rf DESTDIR</userinput></screen>
99
100 </sect2>
101
102 <sect2 arch="ml_x32,ml_all" role="installation">
103 <title>Installation of Libcap - x32-bit</title>
104
105 <para>Clean previous build:</para>
106
107<screen><userinput remap="pre">make distclean</userinput></screen>
108
109 <para>Compile the package:</para>
110
111<screen><userinput remap="make">make CC="gcc -mx32"</userinput></screen>
112
113 <para>Install the package:</para>
114
115<screen><userinput remap="install">make lib=libx32 prefix=$PWD/DESTDIR/usr -C libcap install
116cp -Rv DESTDIR/usr/libx32/* /usr/libx32
117chmod -v 755 /usr/libx32/libcap.so.&libcap-version;
118rm -rf DESTDIR</userinput></screen>
119
120 </sect2>
121
122 <sect2 id="contents-libcap" role="content">
123 <title>Contents of Libcap</title>
124
125 <segmentedlist>
126 <segtitle>Installed programs</segtitle>
127 <segtitle>Installed library</segtitle>
128
129 <seglistitem>
130 <seg>capsh, getcap, getpcaps, and setcap</seg>
131 <seg>libcap.so and libpsx.a</seg>
132 </seglistitem>
133 </segmentedlist>
134
135 <variablelist>
136 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
137 <?dbfo list-presentation="list"?>
138 <?dbhtml list-presentation="table"?>
139
140 <varlistentry id="capsh">
141 <term><command>capsh</command></term>
142 <listitem>
143 <para>A shell wrapper to explore and constrain capability support</para>
144 <indexterm zone="ch-system-libcap capsh">
145 <primary sortas="b-capsh">capsh</primary>
146 </indexterm>
147 </listitem>
148 </varlistentry>
149
150 <varlistentry id="getcap">
151 <term><command>getcap</command></term>
152 <listitem>
153 <para>Examines file capabilities</para>
154 <indexterm zone="ch-system-libcap getcap">
155 <primary sortas="b-getcap">getcap</primary>
156 </indexterm>
157 </listitem>
158 </varlistentry>
159
160 <varlistentry id="getpcaps">
161 <term><command>getpcaps</command></term>
162 <listitem>
163 <para>Displays the capabilities on the queried process(es)</para>
164 <indexterm zone="ch-system-libcap getpcaps">
165 <primary sortas="b-getpcaps">getpcaps</primary>
166 </indexterm>
167 </listitem>
168 </varlistentry>
169
170 <varlistentry id="setcap">
171 <term><command>setcap</command></term>
172 <listitem>
173 <para>Sets file capabilities</para>
174 <indexterm zone="ch-system-libcap setcap">
175 <primary sortas="b-setcap">setcap</primary>
176 </indexterm>
177 </listitem>
178 </varlistentry>
179
180 <varlistentry id="libcap">
181 <term><filename class="libraryfile">libcap</filename></term>
182 <listitem>
183 <para>Contains the library functions for manipulating POSIX 1003.1e
184 capabilities</para>
185 <indexterm zone="ch-system-libcap libcap">
186 <primary sortas="c-libcap">libcap</primary>
187 </indexterm>
188 </listitem>
189 </varlistentry>
190
191 <varlistentry id="libpsx">
192 <term><filename class="libraryfile">libpsx</filename></term>
193 <listitem>
194 <para>Contains functions to support POSIX semantics for syscalls
195 associated with the pthread library</para>
196 <indexterm zone="ch-system-libcap libpsx">
197 <primary sortas="c-libpsx">libpsx</primary>
198 </indexterm>
199 </listitem>
200 </varlistentry>
201
202 </variablelist>
203
204 </sect2>
205
206</sect1>
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