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| zip_source_seek_compute_offset.mdoc - validate arguments and compute offset |
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| <head> |
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| <title>ZIP_SOURCE_SEEK_COMPUTE_OFFSET(3)</title> |
| </head> |
| <body> |
| <table class="head"> |
| <tr> |
| <td class="head-ltitle">ZIP_SOURCE_SEEK_COMPUTE_OFFSET(3)</td> |
| <td class="head-vol">Library Functions Manual</td> |
| <td class="head-rtitle">ZIP_SOURCE_SEEK_COMPUTE_OFFSET(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_seek_compute_offset</code> — |
| <div class="Nd">validate arguments and compute offset</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_int64_t</var> |
| <br/> |
| <code class="Fn">zip_source_seek_compute_offset</code>(<var class="Fa" style="white-space: nowrap;">zip_uint64_t |
| offset</var>, <var class="Fa" style="white-space: nowrap;">zip_uint64_t |
| length</var>, <var class="Fa" style="white-space: nowrap;">void *data</var>, |
| <var class="Fa" style="white-space: nowrap;">zip_uint64_t data_length</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> |
| Use this function to compute the offset for a |
| <code class="Dv">ZIP_SOURCE_SEEK</code> or |
| <code class="Dv">ZIP_SOURCE_SEEK_WRITE</code> command. |
| <var class="Ar">data</var> and <var class="Ar">data_length</var> are the |
| arguments to the source callback, <var class="Ar">offset</var> is the current |
| offset and <var class="Ar">length</var> is the length of the source data or, |
| for <code class="Dv">ZIP_SOURCE_SEEK_WRITE</code>, the amount of data written. |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN |
| VALUES</a></h1> |
| On success, it returns the new offset, on error it returns -1 and sets |
| <var class="Ar">error</var>. |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="ERRORS"><a class="permalink" href="#ERRORS">ERRORS</a></h1> |
| <code class="Fn">zip_source_seek_compute_offset</code>() fails if: |
| <dl class="Bl-tag"> |
| <dt>[<a class="permalink" href="#ZIP_ER_INVAL"><code class="Er" id="ZIP_ER_INVAL">ZIP_ER_INVAL</code></a>]</dt> |
| <dd>One of the arguments is invalid or the seek would place the offset outside |
| the data.</dd> |
| </dl> |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE |
| ALSO</a></h1> |
| <a class="Xr" href="zip_source_function.html">zip_source_function(3)</a> |
| </section> |
| <section class="Sh"> |
| <h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1> |
| <code class="Fn">zip_source_seek_compute_offset</code>() was added in libzip |
| 1.0. |
| </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">December 18, 2017</td> |
| <td class="foot-os">NiH</td> |
| </tr> |
| </table> |
| </body> |
| </html> |
