1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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5 | %general-entities;
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6 |
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7 | <!ENTITY unzip-download-http "&sourceforge-repo;/infozip/unzip60.tar.gz">
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8 | <!-- <!ENTITY unzip-download-http "http://www.mirrorservice.org/sites/ftp.info-zip.org/pub/infozip/src/unzip552.tar.gz">
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9 | <!ENTITY unzip-download-ftp "ftp://ftp.info-zip.org/pub/infozip/src/unzip552.tar.gz">
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10 | <!ENTITY unzip-download-ftp "ftp://tug.ctan.org/tex-archive/tools/zip/info-zip/src/unzip552.tar.gz"> -->
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11 | <!ENTITY unzip-download-ftp " ">
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12 | <!ENTITY unzip-md5sum "62b490407489521db863b523a7f86375">
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13 | <!ENTITY unzip-size "1.3 MB">
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14 | <!ENTITY unzip-buildsize "9 MB">
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15 | <!ENTITY unzip-time "Less than 0.1 SBU">
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16 | ]>
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17 |
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18 | <sect1 id="unzip" xreflabel="UnZip-&unzip-version;">
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19 | <?dbhtml filename="unzip.html"?>
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20 |
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21 | <sect1info>
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22 | <othername>$LastChangedBy$</othername>
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23 | <date>$Date$</date>
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24 | </sect1info>
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25 |
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26 | <title>UnZip-&unzip-version;</title>
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27 |
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28 | <indexterm zone="unzip">
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29 | <primary sortas="a-UnZip">UnZip</primary>
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30 | </indexterm>
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31 |
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32 | <sect2 role="package">
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33 | <title>Introduction to UnZip</title>
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34 |
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35 | <para>The <application>UnZip</application> package contains
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36 | <filename>ZIP</filename> extraction utilities. These are useful for
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37 | extracting files from <filename>ZIP</filename> archives.
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38 | <filename>ZIP</filename> archives are created with
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39 | <application>PKZIP</application> or <application>Info-ZIP</application>
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40 | utilities, primarily in a DOS environment.</para>
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41 |
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42 | <caution>
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43 | <para>The previous version of the <application>UnZip</application>
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44 | package had some locale related issues. Currently there are no BLFS
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45 | editors capable of testing these local issues. Therefore, the
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46 | locale related information is left on this page, but has not been
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47 | tested. <!--Note that the patch recommended for the locale issues will not
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48 | apply to this version of <application>UnZip</application>. See the
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49 | discussion below in <xref linkend="unzip-locale-issues"/>. --> A more
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50 | general discussion of these problems can be found in the
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51 | <xref linkend="locale-assumed-encoding"/> section of the
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52 | <xref linkend="locale-issues"/> page.</para>
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53 | </caution>
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54 |
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55 | &lfs71_checked;
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56 |
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57 | <bridgehead renderas="sect3">Package Information</bridgehead>
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58 | <itemizedlist spacing="compact">
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59 | <listitem>
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60 | <para>Download (HTTP): <ulink url="&unzip-download-http;"/></para>
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61 | </listitem>
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62 | <listitem>
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63 | <para>Download (FTP): <ulink url="&unzip-download-ftp;"/></para>
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64 | </listitem>
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65 | <listitem>
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66 | <para>Download MD5 sum: &unzip-md5sum;</para>
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67 | </listitem>
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68 | <listitem>
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69 | <para>Download size: &unzip-size;</para>
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70 | </listitem>
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71 | <listitem>
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72 | <para>Estimated disk space required: &unzip-buildsize;</para>
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73 | </listitem>
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74 | <listitem>
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75 | <para>Estimated build time: &unzip-time;</para>
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76 | </listitem>
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77 | </itemizedlist>
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78 | <!--
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79 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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80 | <itemizedlist spacing='compact'> -->
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81 | <!-- <listitem>
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82 | <para>Required patch: <ulink
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83 | url="&patch-root;/unzip-&unzip-version;-security_fix-1.patch"/></para>
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84 | </listitem>
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85 | <listitem>
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86 | <para>Required patch: <ulink
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87 | url="&patch-root;/unzip-&unzip-version;-security_fix-2.patch"/></para>
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88 | </listitem> -->
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89 | <!--
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90 | <listitem>
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91 | <para>Optional patch (will not apply properly): <ulink
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92 | url="&patch-root;/unzip-5.50-alt-iconv-v1.1.patch"/></para>
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93 | </listitem>
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94 | </itemizedlist>
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95 | -->
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96 | <para condition="html" role="usernotes">User Notes:
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97 | <ulink url="&blfs-wiki;/unzip"/></para>
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98 |
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99 | </sect2>
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100 |
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101 | <sect2 id="unzip-locale-issues">
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102 | <title>UnZip Locale Issues</title>
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103 |
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104 | <note>
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105 | <para>Use of <application>UnZip</application> in the
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106 | <application>JDK</application>, <application>Mozilla</application>,
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107 | <application>DocBook</application> or any other BLFS package
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108 | installation is not a problem, as BLFS instructions never use
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109 | <application>UnZip</application> to extract a file with non-ASCII
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110 | characters in the file's name.</para>
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111 | </note>
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112 |
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113 | <para>The <application>UnZip</application> package assumes that filenames
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114 | stored in the ZIP archives created on non-Unix systems are encoded in
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115 | CP850, and that they should be converted to ISO-8859-1 when writing files
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116 | onto the filesystem. Such assumptions are not always valid. In fact,
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117 | inside the ZIP archive, filenames are encoded in the DOS codepage that is
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118 | in use in the relevant country, and the filenames on disk should be in
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119 | the locale encoding. In MS Windows, the OemToChar() C function (from
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120 | <filename>User32.DLL</filename>) does the correct conversion (which is
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121 | indeed the conversion from CP850 to a superset of ISO-8859-1 if MS
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122 | Windows is set up to use the US English language), but there is no
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123 | equivalent in Linux.</para>
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124 |
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125 | <para>When using <command>unzip</command> to unpack a ZIP archive
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126 | containing non-ASCII filenames, the filenames are damaged because
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127 | <command>unzip</command> uses improper conversion when any of its
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128 | encoding assumptions are incorrect. For example, in the ru_RU.KOI8-R
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129 | locale, conversion of filenames from CP866 to KOI8-R is required, but
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130 | conversion from CP850 to ISO-8859-1 is done, which produces filenames
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131 | consisting of undecipherable characters instead of words (the closest
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132 | equivalent understandable example for English-only users is rot13). There
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133 | are several ways around this limitation:</para>
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134 |
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135 | <para>1) For unpacking ZIP archives with filenames containing non-ASCII
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136 | characters, use <ulink url="http://www.winzip.com/">WinZip</ulink> while
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137 | running the <ulink url="http://www.winehq.com/">Wine</ulink> Windows
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138 | emulator.</para>
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139 |
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140 | <para>2) After running <command>unzip</command>, fix the damage made to
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141 | the filenames using the <command>convmv</command> tool
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142 | (<ulink url="http://j3e.de/linux/convmv/"/>). The following is an example
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143 | for the ru_RU.KOI8-R locale:</para>
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144 |
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145 | <blockquote>
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146 | <para>Step 1. Undo the conversion done by
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147 | <command>unzip</command>:</para>
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148 |
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149 | <screen><userinput>convmv -f iso-8859-1 -t cp850 -r --nosmart --notest \
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150 | <replaceable></path/to/unzipped/files></replaceable></userinput></screen>
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151 |
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152 | <para>Step 2. Do the correct conversion instead:</para>
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153 |
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154 | <screen><userinput>convmv -f cp866 -t koi8-r -r --nosmart --notest \
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155 | <replaceable></path/to/unzipped/files></replaceable></userinput></screen>
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156 | </blockquote>
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157 | <!--
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158 | <para>3) Apply the optional
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159 | <filename>unzip-5.50-alt-iconv-v1.1.patch</filename> patch to
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160 | <application>UnZip</application>. It will apply with some offsets.</para>
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161 |
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162 | <para>It allows to specify the assumed filename encoding in the ZIP
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163 | archive using the <option>-O charset_name</option> option and the
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164 | on-disk filename encoding using the <option>-I charset_name</option>
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165 | option. Defaults: the on-disk filename encoding is the locale encoding,
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166 | the encoding inside the ZIP archive is guessed according to the builtin
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167 | table based on the locale encoding. For US English users, this still
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168 | means that unzip converts from CP850 to ISO-8859-1 by default.</para>
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169 |
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170 | <para>Caveat: this method works only with 8-bit locale encodings, not
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171 | with UTF-8. Attempting to use a patched <command>unzip</command> in UTF-8
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172 | locales may result in a segmentation fault and is probably a security
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173 | risk.</para>
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174 | -->
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175 | </sect2>
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176 |
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177 | <sect2 role="installation">
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178 | <title>Installation of UnZip</title>
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179 |
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180 | <!-- <para>Note that if you applied the patch described above for locale issues,
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181 | the first required security patch will have some offsets. Now install
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182 | <application>UnZip</application> by running the following commands:</para> -->
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183 |
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184 | <screen><userinput>case `uname -m` in
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185 | i?86)
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186 | sed -i -e 's/DASM"/DASM -DNO_LCHMOD"/' unix/Makefile
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187 | make -f unix/Makefile linux
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188 | ;;
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189 | *)
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190 | sed -i -e 's/CFLAGS="-O -Wall/& -DNO_LCHMOD/' unix/Makefile
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191 | make -f unix/Makefile linux_noasm
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192 | ;;
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193 | esac</userinput></screen>
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194 |
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195 | <para>To test the results, issue: <command>make check</command>.</para>
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196 |
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197 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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198 |
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199 | <screen role="root"><userinput>make prefix=/usr install</userinput></screen>
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200 |
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201 | </sect2>
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202 |
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203 | <sect2 role="commands">
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204 | <title>Command Explanations</title>
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205 |
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206 | <para><command>sed ...</command>: This command ensures an obsolete
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207 | system call is not made.</para>
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208 |
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209 | <para><parameter>linux, linux_noasm</parameter>:
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210 | The linux target in the <filename>Makefile</filename> makes assumptions
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211 | that are useful for a Linux system when compiling the executables, but
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212 | also uses some 32-bit x86 assembler code. The linux_noasm target will
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213 | build on all linux hosts. To obtain alternatives to these targets, use
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214 | <command>make -f unix/Makefile list</command></para>
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215 |
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216 | <!-- <para><parameter>LOCAL_UNZIP=...</parameter>:
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217 | This sets the compilation flags to allow <application>UnZip</application>
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218 | to handle files up to 4 GB.</para> -->
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219 |
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220 | </sect2>
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221 |
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222 | <sect2 role="content">
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223 | <title>Contents</title>
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224 |
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225 | <segmentedlist>
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226 | <segtitle>Installed Programs</segtitle>
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227 | <segtitle>Installed Libraries</segtitle>
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228 | <segtitle>Installed Directories</segtitle>
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229 |
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230 | <seglistitem>
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231 | <seg>funzip, unzip, unzipfsx, zipgrep, and zipinfo</seg>
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232 | <seg>None</seg>
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233 | <seg>None</seg>
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234 | </seglistitem>
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235 | </segmentedlist>
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236 |
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237 | <variablelist>
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238 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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239 | <?dbfo list-presentation="list"?>
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240 | <?dbhtml list-presentation="table"?>
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241 |
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242 | <varlistentry id="funzip">
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243 | <term><command>funzip</command></term>
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244 | <listitem>
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245 | <para>allows the output of <command>unzip</command> commands to be
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246 | redirected.</para>
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247 | <indexterm zone="unzip funzip">
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248 | <primary sortas="b-funzip">funzip</primary>
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249 | </indexterm>
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250 | </listitem>
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251 | </varlistentry>
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252 |
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253 | <varlistentry id="unzip-prog">
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254 | <term><command>unzip</command></term>
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255 | <listitem>
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256 | <para>lists, tests or extracts files from a <filename>ZIP</filename>
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257 | archive.</para>
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258 | <indexterm zone="unzip unzip-prog">
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259 | <primary sortas="b-unzip">unzip</primary>
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260 | </indexterm>
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261 | </listitem>
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262 | </varlistentry>
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263 |
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264 | <varlistentry id="unzipfsx">
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265 | <term><command>unzipfsx</command></term>
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266 | <listitem>
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267 | <para>is a self-extracting stub that can be prepended to a
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268 | <filename>ZIP</filename> archive. Files in this format allow the
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269 | recipient to decompress the archive without installing
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270 | <application>UnZip</application>.</para>
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271 | <indexterm zone="unzip unzipfsx">
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272 | <primary sortas="b-unzipfsx">unzipfsx</primary>
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273 | </indexterm>
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274 | </listitem>
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275 | </varlistentry>
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276 |
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277 | <varlistentry id="zipgrep">
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278 | <term><command>zipgrep</command></term>
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279 | <listitem>
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280 | <para>searches files in a <filename>ZIP</filename> archive for
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281 | lines matching a pattern.</para>
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282 | <indexterm zone="unzip zipgrep">
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283 | <primary sortas="b-zipgrep">zipgrep</primary>
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284 | </indexterm>
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285 | </listitem>
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286 | </varlistentry>
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287 |
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288 | <varlistentry id="zipinfo">
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289 | <term><command>zipinfo</command></term>
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290 | <listitem>
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291 | <para>produces technical information about the files in a
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292 | <filename>ZIP</filename> archive, including file access permissions,
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293 | encryption status, type of compression, etc.</para>
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294 | <indexterm zone="unzip zipinfo">
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295 | <primary sortas="b-zipinfo">zipinfo</primary>
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296 | </indexterm>
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297 | </listitem>
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298 | </varlistentry>
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299 |
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300 | <varlistentry id="libunzip">
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301 | <term><filename class='libraryfile'>libunzip.so</filename></term>
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302 | <listitem>
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303 | <para>contains the API functions required by the
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304 | <application>UnZip</application> programs.</para>
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305 | <indexterm zone="unzip libunzip">
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306 | <primary sortas="c-libunzip">libunzip.so</primary>
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307 | </indexterm>
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308 | </listitem>
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309 | </varlistentry>
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310 |
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311 | </variablelist>
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312 |
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313 | </sect2>
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314 |
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315 | </sect1>
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