| <!DOCTYPE html> |
| <html> |
| <!-- This is an automatically generated file. Do not edit. |
| zip_source_zip.mdoc -- create data source from zip file |
| Copyright (C) 2004-2021 Dieter Baron and Thomas Klausner |
| |
| This file is part of libzip, a library to manipulate ZIP archives. |
| The authors can be contacted at <libzip@nih.at> |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions |
| are met: |
| 1. Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| 2. Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in |
| the documentation and/or other materials provided with the |
| distribution. |
| 3. The names of the authors may not be used to endorse or promote |
| products derived from this software without specific prior |
| written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS |
| OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY |
| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
| IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| --> |
| <head> |
| <meta charset="utf-8"/> |
| <link rel="stylesheet" href="../nih-man.css" type="text/css" media="all"/> |
| <title>ZIP_SOURCE_ZIP(3)</title> |
| </head> |
| <body> |
| <table class="head"> |
| <tr> |
| <td class="head-ltitle">ZIP_SOURCE_ZIP(3)</td> |
| <td class="head-vol">Library Functions Manual</td> |
| <td class="head-rtitle">ZIP_SOURCE_ZIP(3)</td> |
| </tr> |
| </table> |
| <div class="manual-text"> |
| <section class="Sh"> |
| <h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1> |
| <code class="Nm">zip_source_zip</code>, |
| <code class="Nm">zip_source_zip_create</code> — |
| <div class="Nd">create data source from zip file</div> |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="LIBRARY"><a class="permalink" href="#LIBRARY">LIBRARY</a></h1> |
| libzip (-lzip) |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1> |
| <code class="In">#include <<a class="In">zip.h</a>></code> |
| <p class="Pp"><var class="Ft">zip_source_t *</var> |
| <br/> |
| <code class="Fn">zip_source_zip</code>(<var class="Fa" style="white-space: nowrap;">zip_t |
| *archive</var>, <var class="Fa" style="white-space: nowrap;">zip_t |
| *srcarchive</var>, <var class="Fa" style="white-space: nowrap;">zip_uint64_t |
| srcidx</var>, <var class="Fa" style="white-space: nowrap;">zip_flags_t |
| flags</var>, <var class="Fa" style="white-space: nowrap;">zip_uint64_t |
| start</var>, <var class="Fa" style="white-space: nowrap;">zip_int64_t |
| len</var>);</p> |
| <p class="Pp"><var class="Ft">zip_source_t *</var> |
| <br/> |
| <code class="Fn">zip_source_zip_create</code>(<var class="Fa" style="white-space: nowrap;">zip_t |
| *srcarchive</var>, <var class="Fa" style="white-space: nowrap;">zip_uint64_t |
| srcidx</var>, <var class="Fa" style="white-space: nowrap;">zip_flags_t |
| flags</var>, <var class="Fa" style="white-space: nowrap;">zip_uint64_t |
| start</var>, <var class="Fa" style="white-space: nowrap;">zip_int64_t |
| len</var>, <var class="Fa" style="white-space: nowrap;">zip_error_t |
| *error</var>);</p> |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> |
| The functions <code class="Fn">zip_source_zip</code>() and |
| <code class="Fn">zip_source_zip_create</code>() create a zip source from a |
| file in a zip archive. The <var class="Ar">srcarchive</var> argument is the |
| (open) zip archive containing the source zip file at index |
| <var class="Ar">srcidx</var>. <var class="Ar">len</var> bytes from offset |
| <var class="Ar">start</var> will be used in the zip_source. If |
| <var class="Ar">len</var> is 0 or -1, the rest of the file, starting from |
| <var class="Ar">start</var>, is used. If <var class="Ar">start</var> is zero |
| and <var class="Ar">len</var> is -1, the whole file will be copied without |
| decompressing it. |
| <p class="Pp">Supported flags are:</p> |
| <dl class="Bl-tag"> |
| <dt><a class="permalink" href="#ZIP_FL_UNCHANGED"><code class="Dv" id="ZIP_FL_UNCHANGED">ZIP_FL_UNCHANGED</code></a></dt> |
| <dd>Try to get the original data without any changes that may have been made |
| to <var class="Ar">srcarchive</var> after opening it.</dd> |
| <dt><a class="permalink" href="#ZIP_FL_RECOMPRESS"><code class="Dv" id="ZIP_FL_RECOMPRESS">ZIP_FL_RECOMPRESS</code></a></dt> |
| <dd>When adding the data from <var class="Ar">srcarchive</var>, re-compress it |
| using the current settings instead of copying the compressed data.</dd> |
| </dl> |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN |
| VALUES</a></h1> |
| Upon successful completion, the created source is returned. Otherwise, |
| <code class="Dv">NULL</code> is returned and the error code in |
| <var class="Ar">archive</var> or <var class="Ar">error</var> is set to |
| indicate the error. |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="ERRORS"><a class="permalink" href="#ERRORS">ERRORS</a></h1> |
| <code class="Fn">zip_source_zip</code>() and |
| <code class="Fn">zip_source_zip_create</code>() fail if: |
| <dl class="Bl-tag"> |
| <dt>[<a class="permalink" href="#ZIP_ER_CHANGED"><code class="Er" id="ZIP_ER_CHANGED">ZIP_ER_CHANGED</code></a>]</dt> |
| <dd>Unchanged data was requested, but it is not available.</dd> |
| <dt>[<a class="permalink" href="#ZIP_ER_INVAL"><code class="Er" id="ZIP_ER_INVAL">ZIP_ER_INVAL</code></a>]</dt> |
| <dd><var class="Ar">srcarchive</var>, <var class="Ar">srcidx</var>, |
| <var class="Ar">start</var>, or <var class="Ar">len</var> are |
| invalid.</dd> |
| <dt>[<a class="permalink" href="#ZIP_ER_MEMORY"><code class="Er" id="ZIP_ER_MEMORY">ZIP_ER_MEMORY</code></a>]</dt> |
| <dd>Required memory could not be allocated.</dd> |
| </dl> |
| Additionally, it can return all error codes from |
| <code class="Fn">zip_stat_index</code>() and |
| <code class="Fn">zip_fopen_index</code>(). |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE |
| ALSO</a></h1> |
| <a class="Xr" href="libzip.html">libzip(3)</a>, |
| <a class="Xr" href="zip_file_add.html">zip_file_add(3)</a>, |
| <a class="Xr" href="zip_file_replace.html">zip_file_replace(3)</a>, |
| <a class="Xr" href="zip_source.html">zip_source(3)</a> |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1> |
| <code class="Fn">zip_source_zip</code>() was added in libzip 1.0. |
| <code class="Fn">zip_source_zip_create</code>() was added in libzip 1.8.0. |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1> |
| <span class="An">Dieter Baron</span> |
| <<a class="Mt" href="mailto:dillo@nih.at">dillo@nih.at</a>> and |
| <span class="An">Thomas Klausner</span> |
| <<a class="Mt" href="mailto:tk@giga.or.at">tk@giga.or.at</a>> |
| </section> |
| </div> |
| <table class="foot"> |
| <tr> |
| <td class="foot-date">April 4, 2021</td> |
| <td class="foot-os">NiH</td> |
| </tr> |
| </table> |
| </body> |
| </html> |
