glibc/iconv/iconv_open.c
Andreas Jaeger 41bdb6e20c Update to LGPL v2.1.
2001-07-06  Paul Eggert  <eggert@twinsun.com>

	* manual/argp.texi: Remove ignored LGPL copyright notice; it's
	not appropriate for documentation anyway.
	* manual/libc-texinfo.sh: "Library General Public License" ->
	"Lesser General Public License".

2001-07-06  Andreas Jaeger  <aj@suse.de>

	* All files under GPL/LGPL version 2: Place under LGPL version
	2.1.
2001-07-06 04:58:11 +00:00

66 lines
2.1 KiB
C

/* Get descriptor for character set conversion.
Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <iconv.h>
#include <stdlib.h>
#include <string.h>
#include <gconv_int.h>
#include "gconv_charset.h"
iconv_t
iconv_open (const char *tocode, const char *fromcode)
{
char *tocode_conv;
char *fromcode_conv;
size_t tocode_len;
size_t fromcode_len;
__gconv_t cd;
int res;
/* Normalize the name. We remove all characters beside alpha-numeric,
'_', '-', '/', and '.'. */
tocode_len = strlen (tocode);
tocode_conv = alloca (tocode_len + 3);
strip (tocode_conv, tocode);
tocode = tocode_conv[2] == '\0' ? upstr (tocode_conv, tocode) : tocode_conv;
fromcode_len = strlen (fromcode);
fromcode_conv = alloca (fromcode_len + 3);
strip (fromcode_conv, fromcode);
fromcode = (fromcode_conv[2] == '\0'
? upstr (fromcode_conv, fromcode) : fromcode_conv);
res = __gconv_open (tocode, fromcode, &cd, 0);
if (__builtin_expect (res, __GCONV_OK) != __GCONV_OK)
{
/* We must set the error number according to the specs. */
if (res == __GCONV_NOCONV || res == __GCONV_NODB)
__set_errno (EINVAL);
return (iconv_t) -1;
}
return (iconv_t) cd;
}