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| <title>ZIP_SOURCE_SEEK_COMPUTE_OFFSET(3)</title> |
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| <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> |
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| <div class="manual-text"> |
| <h1 class="Sh" id="NAME">NAME</h1> |
| <b class="Nm">zip_source_seek_compute_offset</b> — |
| <span class="Nd">validate arguments and compute offset</span> |
| <h1 class="Sh" id="LIBRARY">LIBRARY</h1> |
| libzip (-lzip) |
| <h1 class="Sh" id="SYNOPSIS">SYNOPSIS</h1> |
| <b class="In">#include <<a class="In">zip.h</a>></b> |
| <div class="Pp"></div> |
| <var class="Ft">zip_int64_t</var> |
| <br/> |
| <b class="Fn">zip_source_seek_compute_offset</b>(<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>); |
| <h1 class="Sh" id="DESCRIPTION">DESCRIPTION</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. |
| <h1 class="Sh" id="RETURN_VALUES">RETURN VALUES</h1> |
| On success, it returns the new offset, on error it returns -1 and sets |
| <var class="Ar">error</var>. |
| <h1 class="Sh" id="ERRORS">ERRORS</h1> |
| <b class="Fn">zip_source_seek_compute_offset</b>() fails if: |
| <dl class="Bl-tag" style="margin-left: 17.00ex;"> |
| <dt class="It-tag" style="margin-left: -17.00ex;"> </dt> |
| <dd class="It-tag"> </dd> |
| <dt class="It-tag" style="margin-left: -17.00ex;">[<code class="Er">ZIP_ER_INVAL</code>]</dt> |
| <dd class="It-tag">One of the arguments is invalid or the seek would place the |
| offset outside the data.</dd> |
| </dl> |
| <h1 class="Sh" id="SEE_ALSO">SEE ALSO</h1> |
| <a class="Xr" href="zip_source_function.html">zip_source_function(3)</a> |
| <h1 class="Sh" id="HISTORY">HISTORY</h1> |
| <b class="Fn">zip_source_seek_compute_offset</b>() was added in libzip 1.0. |
| <h1 class="Sh" id="AUTHORS">AUTHORS</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>></div> |
| <table class="foot"> |
| <tr> |
| <td class="foot-date">December 18, 2017</td> |
| <td class="foot-os">NetBSD 8.99.14</td> |
| </tr> |
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