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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 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _MSE_H
#define _MSE_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <wchar.h>
#include <string.h>
#include "stdiom.h"
typedef enum {
_NO_MODE, /* not bound */
_BYTE_MODE, /* Byte orientation */
_WC_MODE /* Wide orientation */
} _IOP_orientation_t;
/*
* DESCRIPTION:
* This function gets the pointer to the mbstate_t structure associated
* with the specified iop.
*
* RETURNS:
* If the associated mbstate_t found, the pointer to the mbstate_t is
* returned. Otherwise, (mbstate_t *)NULL is returned.
*/
#ifdef _LP64
#define _getmbstate(iop) (&(iop)->_state)
#else
extern mbstate_t *_getmbstate(FILE *);
#endif
/*
* DESCRIPTION:
* This function/macro gets the orientation bound to the specified iop.
*
* RETURNS:
* _WC_MODE if iop has been bound to Wide orientation
* _BYTE_MODE if iop has been bound to Byte orientation
* _NO_MODE if iop has been bound to neither Wide nor Byte
*/
extern _IOP_orientation_t _getorientation(FILE *);
/*
* DESCRIPTION:
* This function/macro sets the orientation to the specified iop.
*
* INPUT:
* flag may take one of the following:
* _WC_MODE Wide orientation
* _BYTE_MODE Byte orientation
* _NO_MODE Unoriented
*/
extern void _setorientation(FILE *, _IOP_orientation_t);
/*
* From page 32 of XSH5
* Once a wide-character I/O function has been applied
* to a stream without orientation, the stream becomes
* wide-orientated. Similarly, once a byte I/O function
* has been applied to a stream without orientation,
* the stream becomes byte-orientated. Only a call to
* the freopen() function or the fwide() function can
* otherwise alter the orientation of a stream.
*/
/*
* libc_i18n provides the following functions:
*/
extern int _set_orientation_wide(FILE *, void **, void (*(*))(void), int);
extern void *__mbst_get_lc_and_fp(const mbstate_t *,
void (*(*))(void), int);
/*
* Above two functions take either FP_WCTOMB or FP_FGETWC for the integer
* argument.
*/
#define FP_WCTOMB 0
#define FP_FGETWC 1
#define _SET_ORIENTATION_BYTE(iop) \
{ \
if (GET_NO_MODE(iop)) \
_setorientation(iop, _BYTE_MODE); \
}
/* The following is specified in the argument of _get_internal_mbstate() */
#define _MBRLEN 0
#define _MBRTOWC 1
#define _WCRTOMB 2
#define _MBSRTOWCS 3
#define _WCSRTOMBS 4
#define _MAX_MB_FUNC _WCSRTOMBS
extern void _clear_internal_mbstate(void);
extern mbstate_t *_get_internal_mbstate(int);
#define MBSTATE_INITIAL(ps) MBSTATE_RESTART(ps)
#define MBSTATE_RESTART(ps) \
(void) memset((void *)ps, 0, sizeof (mbstate_t))
#endif /* _MSE_H */
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