Home | History | Annotate | Download | only in stdio
      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28 
     29 #include "lint.h"
     30 #include "file64.h"
     31 #include <mtlib.h>
     32 #include <stdio.h>
     33 #include <stdarg.h>
     34 #include <string.h>
     35 #include <thread.h>
     36 #include <synch.h>
     37 #include <wchar.h>
     38 #include <errno.h>
     39 #include <stdlib.h>
     40 #include <alloca.h>
     41 #include "mse.h"
     42 #include "stdiom.h"
     43 #include "libc.h"
     44 
     45 int
     46 #ifdef _C89_INTMAX32	/* _C89_INTMAX32 version in 32-bit libc only */
     47 _vwscanf_c89(const wchar_t *fmt, va_list ap)
     48 #else
     49 vwscanf(const wchar_t *fmt, va_list ap)
     50 #endif
     51 {
     52 	rmutex_t	*lk;
     53 	int	ret;
     54 
     55 	FLOCKFILE(lk, stdin);
     56 
     57 	if (_set_orientation_wide(stdin, NULL, NULL, 0) == -1) {
     58 		errno = EBADF;
     59 		FUNLOCKFILE(lk);
     60 		return (EOF);
     61 	}
     62 
     63 #ifdef _C89_INTMAX32
     64 	ret = __wdoscan_u(stdin, fmt, ap, _F_INTMAX32);
     65 #else
     66 	ret = __wdoscan_u(stdin, fmt, ap, 0);
     67 #endif
     68 	FUNLOCKFILE(lk);
     69 	return (ret);
     70 }
     71 
     72 int
     73 #ifdef _C89_INTMAX32	/* _C89_INTMAX32 version in 32-bit libc only */
     74 _vfwscanf_c89(FILE *iop, const wchar_t *fmt, va_list ap)
     75 #else
     76 vfwscanf(FILE *iop, const wchar_t *fmt, va_list ap)
     77 #endif
     78 {
     79 	rmutex_t	*lk;
     80 	int	ret;
     81 
     82 	FLOCKFILE(lk, iop);
     83 
     84 	if (_set_orientation_wide(iop, NULL, NULL, 0) == -1) {
     85 		errno = EBADF;
     86 		FUNLOCKFILE(lk);
     87 		return (EOF);
     88 	}
     89 
     90 
     91 #ifdef _C89_INTMAX32
     92 	ret = __wdoscan_u(iop, fmt, ap, _F_INTMAX32);
     93 #else
     94 	ret = __wdoscan_u(iop, fmt, ap, 0);
     95 #endif
     96 	FUNLOCKFILE(lk);
     97 	return (ret);
     98 }
     99 
    100 int
    101 #ifdef _C89_INTMAX32	/* _C89_INTMAX32 version in 32-bit libc only */
    102 _vswscanf_c89(const wchar_t *wstr, const wchar_t *fmt, va_list ap)
    103 #else
    104 vswscanf(const wchar_t *wstr, const wchar_t *fmt, va_list ap)
    105 #endif
    106 {
    107 	FILE	strbuf;
    108 	size_t	wlen, clen;
    109 	char	*tmp_buf;
    110 	int	ret;
    111 
    112 	/*
    113 	 * The dummy FILE * created for swscanf has the _IOWRT
    114 	 * flag set to distinguish it from wscanf and fwscanf
    115 	 * invocations.
    116 	 */
    117 
    118 	clen = wcstombs(NULL, wstr, 0);
    119 	if (clen == (size_t)-1) {
    120 		errno = EILSEQ;
    121 		return (EOF);
    122 	}
    123 	tmp_buf = alloca(sizeof (char) * (clen + 1));
    124 	if (tmp_buf == NULL)
    125 		return (EOF);
    126 	wlen = wcstombs(tmp_buf, wstr, clen + 1);
    127 	if (wlen == (size_t)-1) {
    128 		errno = EILSEQ;
    129 		return (EOF);
    130 	}
    131 
    132 	strbuf._flag = _IOREAD | _IOWRT;
    133 	strbuf._ptr = strbuf._base = (unsigned char *)tmp_buf;
    134 	strbuf._cnt = strlen(tmp_buf);
    135 	SET_FILE(&strbuf, _NFILE);
    136 
    137 	/* Probably the following is not required. */
    138 	/* _setorientation(&strbuf, _WC_MODE); */
    139 
    140 #ifdef _C89_INTMAX32
    141 	ret = __wdoscan_u(&strbuf, fmt, ap, _F_INTMAX32);
    142 #else
    143 	ret = __wdoscan_u(&strbuf, fmt, ap, 0);
    144 #endif
    145 	return (ret);
    146 }
    147