2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A
2N/A/*
2N/A * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A/* Copyright (c) 1988 AT&T */
2N/A/* All Rights Reserved */
2N/A
2N/A#pragma ident "%Z%%M% %I% %E% SMI"
2N/A
2N/A#ifndef _C89_INTMAX32
2N/A#pragma weak _vscanf = vscanf
2N/A#pragma weak _vfscanf = vfscanf
2N/A#pragma weak _vsscanf = vsscanf
2N/A#endif
2N/A
2N/A#include "lint.h"
2N/A#include "file64.h"
2N/A#include "mtlib.h"
2N/A#include <stdio.h>
2N/A#include <stdarg.h>
2N/A#include <string.h>
2N/A#include <thread.h>
2N/A#include <synch.h>
2N/A#include "libc.h"
2N/A#include "stdiom.h"
2N/A#include "mse.h"
2N/A#include <stdio_ext.h>
2N/A
2N/A
2N/A/*
2N/A * 32-bit shadow functions _vscanf_c89(), _vfscanf_c89(), _vsscanf_c89()
2N/A * are included here.
2N/A * When using the c89 compiler to build 32-bit applications, the size
2N/A * of intmax_t is 32-bits, otherwise the size of intmax_t is 64-bits.
2N/A * The shadow function uses 32-bit size of intmax_t for %j conversion.
2N/A * The #pragma redefine_extname in <stdio.h> selects the proper routine
2N/A * at compile time for the user application.
2N/A * NOTE: the shadow function only exists in the 32-bit library.
2N/A */
2N/A
2N/Aint
2N/A#ifdef _C89_INTMAX32 /* _C89_INTMAX32 version in 32-bit libc only */
2N/A_vscanf_c89(const char *fmt, va_list ap)
2N/A#else
2N/Avscanf(const char *fmt, va_list ap)
2N/A#endif
2N/A{
2N/A rmutex_t *lk;
2N/A int ret;
2N/A
2N/A FLOCKFILE(lk, stdin);
2N/A
2N/A _SET_ORIENTATION_BYTE(stdin);
2N/A
2N/A#ifdef _C89_INTMAX32
2N/A ret = __doscan_u(stdin, fmt, ap, _F_INTMAX32);
2N/A#else
2N/A ret = __doscan_u(stdin, fmt, ap, 0);
2N/A#endif
2N/A
2N/A FUNLOCKFILE(lk);
2N/A return (ret);
2N/A}
2N/A
2N/Aint
2N/A#ifdef _C89_INTMAX32 /* _C89_INTMAX32 version in 32-bit libc only */
2N/A_vfscanf_c89(FILE *iop, const char *fmt, va_list ap)
2N/A#else
2N/Avfscanf(FILE *iop, const char *fmt, va_list ap)
2N/A#endif
2N/A{
2N/A rmutex_t *lk;
2N/A int ret;
2N/A
2N/A FLOCKFILE(lk, iop);
2N/A
2N/A _SET_ORIENTATION_BYTE(iop);
2N/A
2N/A#ifdef _C89_INTMAX32
2N/A ret = __doscan_u(iop, fmt, ap, _F_INTMAX32);
2N/A#else
2N/A ret = __doscan_u(iop, fmt, ap, 0);
2N/A#endif
2N/A FUNLOCKFILE(lk);
2N/A return (ret);
2N/A}
2N/A
2N/Aint
2N/A#ifdef _C89_INTMAX32 /* _C89_INTMAX32 version in 32-bit libc only */
2N/A_vsscanf_c89(const char *str, const char *fmt, va_list ap)
2N/A#else
2N/Avsscanf(const char *str, const char *fmt, va_list ap)
2N/A#endif
2N/A{
2N/A FILE strbuf;
2N/A
2N/A /*
2N/A * The dummy FILE * created for sscanf has the _IOWRT
2N/A * flag set to distinguish it from scanf and fscanf
2N/A * invocations.
2N/A */
2N/A strbuf._flag = _IOREAD | _IOWRT;
2N/A strbuf._ptr = strbuf._base = (unsigned char *)str;
2N/A strbuf._cnt = strlen(str);
2N/A SET_FILE(&strbuf, _NFILE);
2N/A
2N/A /*
2N/A * Mark the stream so that routines called by __doscan_u()
2N/A * do not do any locking. In particular this avoids a NULL
2N/A * lock pointer being used by getc() causing a core dump.
2N/A * See bugid - 1210179 program SEGV's in sscanf if linked with
2N/A * the libthread.
2N/A * This also makes sscanf() quicker since it does not need
2N/A * to do any locking.
2N/A */
2N/A if (__fsetlocking(&strbuf, FSETLOCKING_BYCALLER) == -1) {
2N/A return (-1); /* this should never happen */
2N/A }
2N/A
2N/A /* as this stream is local to this function, no locking is be done */
2N/A#ifdef _C89_INTMAX32
2N/A return (__doscan_u(&strbuf, fmt, ap, _F_INTMAX32));
2N/A#else
2N/A return (__doscan_u(&strbuf, fmt, ap, 0));
2N/A#endif
2N/A}