1.\" Copyright (c) 2009 Gabor Kovesdan <gabor@FreeBSD.org> 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" Portions of this text are reprinted and reproduced in electronic form 26.\" from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology -- 27.\" Portable Operating System Interface (POSIX), The Open Group Base 28.\" Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of 29.\" Electrical and Electronics Engineers, Inc and The Open Group. In the 30.\" event of any discrepancy between this version and the original IEEE and 31.\" The Open Group Standard, the original IEEE and The Open Group Standard is 32.\" the referee document. The original Standard can be obtained online at 33.\" http://www.opengroup.org/unix/online.html. 34.\" 35.\" $FreeBSD$ 36.\" 37.Dd February 23, 2023 38.Dt ICONVLIST 3 39.Os 40.Sh NAME 41.Nm iconvlist 42.Nd retrieving a list of character encodings supported by 43.Xr iconv 3 44.Sh LIBRARY 45.Lb libc 46.Sh SYNOPSIS 47.In iconv.h 48.Ft void 49.Fo iconvlist 50.Fa "int \*[lp]*do_one\*[rp]\*[lp]unsigned int count, const char * const *names, void *arg\*[rp]" 51.Fa "void *arg" 52.Fc 53.Sh DESCRIPTION 54The 55.Fn iconvlist 56function obtains a list of character encodings that are supported by the 57.Xr iconv 3 58call. 59The 60.Fn do_one 61callback function will be called, where the 62.Fa count 63argument will be set to the number of the encoding names found, the 64.Fa names 65argument will be the list of the supported encoding names and the 66.Fa arg 67argument will be the \"outer\" 68.Fa arg 69argument of the 70.Fn iconvlist 71function. 72This argument can be used to interchange custom data between the caller of 73.Fn iconvlist 74and the callback function. 75.Pp 76If an error occurs, 77.Fa names 78will be NULL when calling 79.Fn do_one . 80.Sh SEE ALSO 81.Xr __iconv_free_list 3 , 82.Xr __iconv_get_list 3 , 83.Xr iconv 3 84.Sh STANDARDS 85The 86.Nm 87function is a non-standard extension, which appeared in 88the GNU implementation and was adopted in 89.Fx 9.0 90for compatibility's sake. 91.Sh AUTHORS 92This manual page was written by 93.An Gabor Kovesdan Aq Mt gabor@FreeBSD.org . 94