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 <title>ICONVCTL</title> | 
 
 
 
 
 
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 <h1 align="center">ICONVCTL</h1> | 
 
 
 
 
 
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 <a href="#NAME">NAME</a><br> | 
 
 
 
 
 
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 <a href="#SYNOPSIS">SYNOPSIS</a><br> | 
 
 
 
 
 
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 <a href="#DESCRIPTION">DESCRIPTION</a><br> | 
 
 
 
 
 
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 <a href="#REQUEST VALUES">REQUEST VALUES</a><br> | 
 
 
 
 
 
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 <a href="#RETURN VALUE">RETURN VALUE</a><br> | 
 
 
 
 
 
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 <a href="#ERRORS">ERRORS</a><br> | 
 
 
 
 
 
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 <a href="#CONFORMING TO">CONFORMING TO</a><br> | 
 
 
 
 
 
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 <a href="#SEE ALSO">SEE ALSO</a><br> | 
 
 
 
 
 
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 <h2>NAME | 
 
 
 
 
 
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 <a name="NAME"></a> | 
 
 
 
 
 
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 </h2> | 
 
 
 
 
 
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 <p style="margin-left:11%; margin-top: 1em">iconvctl | 
 
 
 
 
 
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 − control iconv behavior</p> | 
 
 
 
 
 
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 <h2>SYNOPSIS | 
 
 
 
 
 
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 <a name="SYNOPSIS"></a> | 
 
 
 
 
 
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 </h2> | 
 
 
 
 
 
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 <p style="margin-left:11%; margin-top: 1em"><b>#include | 
 
 
 
 
 
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 <iconv.h></b></p> | 
 
 
 
 
 
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 <p style="margin-left:11%; margin-top: 1em"><b>int iconvctl | 
 
 
 
 
 
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 (iconv_t</b> <i>cd</i> <b>, int</b> <i>request</i><b>, void | 
 
 
 
 
 
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 *</b> <i>argument</i><b>);</b></p> | 
 
 
 
 
 
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 <h2>DESCRIPTION | 
 
 
 
 
 
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 <a name="DESCRIPTION"></a> | 
 
 
 
 
 
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 </h2> | 
 
 
 
 
 
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 <p style="margin-left:11%; margin-top: 1em">The argument | 
 
 
 
 
 
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 <i>cd</i> must be a conversion descriptor created using the | 
 
 
 
 
 
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 function <b>iconv_open</b>.</p> | 
 
 
 
 
 
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 <p style="margin-left:11%; margin-top: 1em"><b>iconvctl</b> | 
 
 
 
 
 
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 queries or adjusts the behavior of the <b>iconv</b> | 
 
 
 
 
 
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 function, when invoked with the specified conversion | 
 
 
 
 
 
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 descriptor, depending on the request value.</p> | 
 
 
 
 
 
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 <h2>REQUEST VALUES | 
 
 
 
 
 
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 <a name="REQUEST VALUES"></a> | 
 
 
 
 
 
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 </h2> | 
 
 
 
 
 
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 <p style="margin-left:11%; margin-top: 1em">The following | 
 
 
 
 
 
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 are permissible values for the <i>request</i> parameter. | 
 
 
 
 
 
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 <b><br> | 
 
 
 
 
 
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 ICONV_TRIVIALP</b></p> | 
 
 
 
 
 
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 <p style="margin-left:22%;"><i>argument</i> should be an | 
 
 
 
 
 
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 <b>int *</b> which will receive 1 if the conversion is | 
 
 
 
 
 
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 trivial, or 0 otherwise.</p> | 
 
 
 
 
 
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 <p style="margin-left:11%;"><b>ICONV_GET_TRANSLITERATE</b></p> | 
 
 
 
 
 
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 <p style="margin-left:22%;"><i>argument</i> should be an | 
 
 
 
 
 
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 <b>int *</b> which will receive 1 if transliteration is | 
 
 
 
 
 
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 enabled in the conversion, or 0 otherwise.</p> | 
 
 
 
 
 
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 <p style="margin-left:11%;"><b>ICONV_SET_TRANSLITERATE</b></p> | 
 
 
 
 
 
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 <p style="margin-left:22%;"><i>argument</i> should be a | 
 
 
 
 
 
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 <b>const int *</b>, pointing to an <b>int</b> value. A | 
 
 
 
 
 
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 non-zero value is used to enable transliteration in the | 
 
 
 
 
 
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 conversion. A zero value disables it.</p> | 
 
 
 
 
 
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 <p style="margin-left:11%;"><b>ICONV_GET_DISCARD_ILSEQ</b></p> | 
 
 
 
 
 
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 <p style="margin-left:22%;"><i>argument</i> should be an | 
 
 
 
 
 
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 <b>int *</b> which will receive 1 if "illegal sequence | 
 
 
 
 
 
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 discard and continue" is enabled in the conversion, or | 
 
 
 
 
 
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 0 otherwise.</p> | 
 
 
 
 
 
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 <p style="margin-left:11%;"><b>ICONV_SET_DISCARD_ILSEQ</b></p> | 
 
 
 
 
 
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 <p style="margin-left:22%;"><i>argument</i> should be a | 
 
 
 
 
 
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 <b>const int *</b>, pointing to an <b>int</b> value. A | 
 
 
 
 
 
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 non-zero value is used to enable "illegal sequence | 
 
 
 
 
 
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 discard and continue" in the conversion. A zero value | 
 
 
 
 
 
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 disables it.</p> | 
 
 
 
 
 
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 <h2>RETURN VALUE | 
 
 
 
 
 
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 <a name="RETURN VALUE"></a> | 
 
 
 
 
 
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 </h2> | 
 
 
 
 
 
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 <p style="margin-left:11%; margin-top: 1em">The | 
 
 
 
 
 
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 <b>iconvctl</b> function returns 0 if it succeeds. In case | 
 
 
 
 
 
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 of error, it sets <b>errno</b> and returns −1.</p> | 
 
 
 
 
 
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 <h2>ERRORS | 
 
 
 
 
 
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 <a name="ERRORS"></a> | 
 
 
 
 
 
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 </h2> | 
 
 
 
 
 
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 <p style="margin-left:11%; margin-top: 1em">The following | 
 
 
 
 
 
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 errors can occur, among others:</p> | 
 
 
 
 
 
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 <p><b>EINVAL</b></p></td> | 
 
 
 
 
 
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 <td width="2%"></td> | 
 
 
 
 
 
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 <td width="35%"> | 
 
 
 
 
 
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 <p>The request is invalid.</p></td> | 
 
 
 
 
 
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 <h2>CONFORMING TO | 
 
 
 
 
 
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 <a name="CONFORMING TO"></a> | 
 
 
 
 
 
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 </h2> | 
 
 
 
 
 
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 <p style="margin-left:11%; margin-top: 1em">This function | 
 
 
 
 
 
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 is implemented only in GNU libiconv and not in other | 
 
 
 
 
 
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 <b>iconv</b> implementations. It is not backed by a | 
 
 
 
 
 
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 standard. You can test for its presence through | 
 
 
 
 
 
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 <b>(_LIBICONV_VERSION >= 0x0108)</b>.</p> | 
 
 
 
 
 
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 <h2>SEE ALSO | 
 
 
 
 
 
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 <a name="SEE ALSO"></a> | 
 
 
 
 
 
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 </h2> | 
 
 
 
 
 
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 <p style="margin-left:11%; margin-top: 1em"><b>iconv_open</b>(3) | 
 
 
 
 
 
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 <b>iconv</b>(3)</p> | 
 
 
 
 
 
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