__fgetws_xpg5.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* Copyright (c) 1986 AT&T */
/* All Rights Reserved */
/* This module is created for NLS on Sep.03.86 */
/*
* Fgetws reads multibyte characters from the "iop", converts
* them to process codes, and places them in the wchar_t
* array pointed to by "ptr". Fgetws reads until n-1 process
* codes are transferred to "ptr", or EOF.
*/
#include "lint.h"
#include "file64.h"
#include "mse_int.h"
#include <stdlib.h>
#include <stdio.h>
#include <widec.h>
#include <errno.h>
#include "mtlib.h"
#include "stdiom.h"
#include "libc.h"
#include "mse.h"
wchar_t *
__fgetws_xpg5(wchar_t *ptr, int size, FILE *iop)
{
wchar_t *ptr0 = ptr;
int c;
void *lc;
wint_t (*fp_fgetwc)(void *, FILE *);
rmutex_t *lk;
FLOCKFILE(lk, iop);
if (_set_orientation_wide(iop, &lc,
(void (*(*))(void))&fp_fgetwc, FP_FGETWC) == -1) {
errno = EBADF;
FUNLOCKFILE(lk);
return (NULL);
}
for (size--; size > 0; size--) {
if ((c = fp_fgetwc(lc, iop)) == EOF) {
if (ptr == ptr0) {
FUNLOCKFILE(lk);
return (NULL);
}
break;
}
*ptr++ = c;
if (c == '\n')
break;
}
*ptr = 0;
FUNLOCKFILE(lk);
return (ptr0);
}