4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This program and the accompanying materials are licensed and made available
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync under the terms and conditions of the BSD License that accompanies this
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync http://opensource.org/licenses/bsd-license.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Copyright (c) 1990, 1993
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * The Regents of the University of California. All rights reserved.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * This code is derived from software contributed to Berkeley by
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Chris Torek.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Redistribution and use in source and binary forms, with or without
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * modification, are permitted provided that the following conditions
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * are met:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 1. Redistributions of source code must retain the above copyright
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * notice, this list of conditions and the following disclaimer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 2. Redistributions in binary form must reproduce the above copyright
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * notice, this list of conditions and the following disclaimer in the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * documentation and/or other materials provided with the distribution.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 3. Neither the name of the University nor the names of its contributors
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * may be used to endorse or promote products derived from this software
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * without specific prior written permission.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * SUCH DAMAGE.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NetBSD: wbuf.c,v 1.13 2003/08/07 16:43:35 agc Exp
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync wbuf.c 8.1 (Berkeley) 6/4/93
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync*/
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <LibConfig.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <sys/EfiCdefs.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <assert.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <errno.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <stdio.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include "reentrant.h"
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include "local.h"
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Write the given character into the (probably full) buffer for
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * the given file. Flush the buffer out if it is or becomes full,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * or if c=='\n' and the file is line buffered.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncint
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync__swbuf(int c, FILE *fp)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync int n;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync //_DIAGASSERT(fp != NULL);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if(fp == NULL) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync errno = EINVAL;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (EOF);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync _SET_ORIENTATION(fp, -1);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * In case we cannot write, or longjmp takes us out early,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * make sure _w is 0 (if fully- or un-buffered) or -_bf._size
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * (if line buffered) so that we will get called again.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * If we did not do this, a sufficient number of putc()
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * calls might wrap _w from negative to positive.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fp->_w = fp->_lbfsize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (cantwrite(fp)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync errno = EBADF;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (EOF);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync c = (unsigned char)c;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * If it is completely full, flush it out. Then, in any case,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * stuff c into the buffer. If this causes the buffer to fill
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * completely, or if c is '\n' and the file is line buffered,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * flush it (perhaps a second time). The second flush will always
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * happen on unbuffered streams, where _bf._size==1; fflush()
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * guarantees that putc() will always call wbuf() by setting _w
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * to 0, so we need not do anything else.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync n = (int)(fp->_p - fp->_bf._base);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (n >= fp->_bf._size) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (fflush(fp))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (EOF);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync n = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fp->_w--;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *fp->_p++ = (unsigned char)c;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (++n == fp->_bf._size || (fp->_flags & __SLBF && c == '\n'))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (fflush(fp))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (EOF);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (c);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}