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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* mbtowc
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#if !defined(lint) && defined(SCCSIDS)
static char *sccsid = "%Z%%M% %I% %E% SMI";
#endif
#include <stdlib.h>
#include "codeset.h"
#include "mbextern.h"
#undef mblen
int
mbtowc(pwc, s, n)
wchar_t * pwc;
char *s;
size_t n;
{
char *handle; /* handle */
int (*p)();
int ret;
switch (_code_set_info.code_id) {
case CODESET_NONE:
#ifdef DEBUG
printf ("DEFAULT: mbtowc invoked\n");
#endif
/*
* This is a default code set
*/
if (s == NULL)
return (1);
else {
if (pwc != NULL)
*pwc = (unsigned char)*s;
return (1);
}
break;
case CODESET_EUC:
#ifdef DEBUG
printf ("EUC: mbtowc invoked\n");
#endif
/*
* EUC code set
*/
return(_mbtowc_euc(pwc, s, n));
break;
case CODESET_XCCS:
#ifdef DEBUG
printf ("XCCS: mbtowc invoked\n");
#endif
/*
* XCCS code set
*/
return(_mbtowc_xccs(pwc, s, n));
break;
case CODESET_ISO2022:
#ifdef DEBUG
printf ("ISO2022: mbtowc invoked\n");
#endif
/*
* ISO family
*/
return(_mbtowc_iso(pwc, s, n));
break;
default:
/*
* User defined code set
*/
handle = _ml_open_library();
if (handle == (char *)NULL)
return(ERROR_NO_LIB); /* No user library */
p = (int (*)()) dlsym(handle, "_mbtowc");
if (p == (int (*)()) NULL)
return(ERROR_NO_SYM);
ret = (*p)(pwc, s, n);
return (ret);
break;
}
/* NOTREACHED */
}
int mblen(s, n)
register char *s; int n;
{
int val;
if (_code_set_info.code_id != CODESET_ISO2022)
return (mbtowc((wchar_t *)0, s, n));
else {
/*
* ISO's mbtowc() changes 'states'.
*/
_savestates();
val = mbtowc((wchar_t *)0, s, n);
_restorestates();
return (val);
}
}
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