diff options
Diffstat (limited to 'StdLib/LibC/Stdio/fvwrite.c')
| -rw-r--r-- | StdLib/LibC/Stdio/fvwrite.c | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/StdLib/LibC/Stdio/fvwrite.c b/StdLib/LibC/Stdio/fvwrite.c deleted file mode 100644 index feddc348c1..0000000000 --- a/StdLib/LibC/Stdio/fvwrite.c +++ /dev/null @@ -1,229 +0,0 @@ -/*
- Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials are licensed and made available
- under the terms and conditions of the BSD License that accompanies this
- distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
- * Copyright (c) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
-
- NetBSD: fvwrite.c,v 1.16.2.1 2007/05/07 19:49:09 pavel Exp
- fvwrite.c 8.1 (Berkeley) 6/4/93
-*/
-#include <LibConfig.h>
-#include <sys/EfiCdefs.h>
-
-#include <assert.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "reentrant.h"
-#include "local.h"
-#include "fvwrite.h"
-
-/*
- * Write some memory regions. Return zero on success, EOF on error.
- *
- * This routine is large and unsightly, but most of the ugliness due
- * to the three different kinds of output buffering is handled here.
- */
-int
-__sfvwrite(FILE *fp, struct __suio *uio)
-{
- size_t len;
- char *p;
- struct __siov *iov;
- int w, s;
- char *nl;
- int nlknown, nldist;
-
- _DIAGASSERT(fp != NULL);
- _DIAGASSERT(uio != NULL);
- if(fp == NULL) {
- errno = EINVAL;
- return (EOF);
- }
-
- if ((len = uio->uio_resid) == 0)
- return (0);
- /* make sure we can write */
- if (cantwrite(fp)) {
- errno = EBADF;
- return (EOF);
- }
-
-//#define MIN(a, b) ((a) < (b) ? (a) : (b))
-#define COPY(n) (void)memcpy((void *)fp->_p, (void *)p, (size_t)(n))
-
- iov = uio->uio_iov;
- p = iov->iov_base;
- len = iov->iov_len;
- iov++;
-#define GETIOV(extra_work) \
- while (len == 0) { \
- extra_work; \
- p = iov->iov_base; \
- len = iov->iov_len; \
- iov++; \
- }
- if (fp->_flags & __SNBF) {
- /*
- * Unbuffered: write up to BUFSIZ bytes at a time.
- */
- do {
- GETIOV(;);
- w = (*fp->_write)(fp->_cookie, p,
- (int)MIN(len, BUFSIZ));
- if (w < 0)
- goto err;
- p += w;
- len -= w;
- } while ((uio->uio_resid -= w) > 0);
- uio->uio_resid = 0; // Just in case it went negative such as when NL is expanded to CR NL
- } else if ((fp->_flags & __SLBF) == 0) {
- /*
- * Fully buffered: fill partially full buffer, if any,
- * and then flush. If there is no partial buffer, write
- * one _bf._size byte chunk directly (without copying).
- *
- * String output is a special case: write as many bytes
- * as fit, but pretend we wrote everything. This makes
- * snprintf() return the number of bytes needed, rather
- * than the number used, and avoids its write function
- * (so that the write function can be invalid).
- */
- do {
- GETIOV(;);
- if ((fp->_flags & (__SALC | __SSTR)) ==
- (__SALC | __SSTR) && fp->_w < (int)len) {
- size_t blen = fp->_p - fp->_bf._base;
- unsigned char *_base;
- int _size;
-
- /* Allocate space exponentially. */
- _size = fp->_bf._size;
- do {
- _size = (_size << 1) + 1;
- } while (_size < (int)(blen + len));
- _base = realloc(fp->_bf._base,
- (size_t)(_size + 1));
- if (_base == NULL)
- goto err;
- fp->_w += _size - fp->_bf._size;
- fp->_bf._base = _base;
- fp->_bf._size = _size;
- fp->_p = _base + blen;
- }
- w = fp->_w;
- if (fp->_flags & __SSTR) {
- if (len < (size_t)w)
- w = (int)len;
- COPY(w); /* copy MIN(fp->_w,len), */
- fp->_w -= w;
- fp->_p += w;
- w = (int)len; /* but pretend copied all */
- } else if (fp->_p > fp->_bf._base && len > (size_t)w) {
- /* fill and flush */
- COPY(w);
- /* fp->_w -= w; */ /* unneeded */
- fp->_p += w;
- if (fflush(fp))
- goto err;
- } else if (len >= (size_t)(w = fp->_bf._size)) {
- /* write directly */
- w = (*fp->_write)(fp->_cookie, p, w);
- if (w <= 0)
- goto err;
- } else {
- /* fill and done */
- w = (int)len;
- COPY(w);
- fp->_w -= w;
- fp->_p += w;
- }
- p += w;
- len -= w;
- } while ((uio->uio_resid -= w) != 0);
- } else {
- /*
- * Line buffered: like fully buffered, but we
- * must check for newlines. Compute the distance
- * to the first newline (including the newline),
- * or `infinity' if there is none, then pretend
- * that the amount to write is MIN(len,nldist).
- */
- nlknown = 0;
- nldist = 0; /* XXX just to keep gcc happy */
- do {
- GETIOV(nlknown = 0);
- if (!nlknown) {
- nl = memchr((void *)p, '\n', len); // Divide the string at the first '\n'
- nldist = (int)(nl ? nl + 1 - p : len + 1);
- nlknown = 1;
- }
- s = (int)(MIN((int)len, nldist));
- w = fp->_w + fp->_bf._size;
- if (fp->_p > fp->_bf._base && s > w) {
- COPY(w);
- /* fp->_w -= w; */
- fp->_p += w;
- if (fflush(fp))
- goto err;
- } else if (s >= (w = fp->_bf._size)) {
- w = (*fp->_write)(fp->_cookie, p, w);
- if (w <= 0)
- goto err;
- } else {
- w = s;
- COPY(w);
- fp->_w -= w;
- fp->_p += w;
- }
- if ((nldist -= w) == 0) {
- /* copied the newline: flush and forget */
- if (fflush(fp))
- goto err;
- nlknown = 0;
- }
- p += w;
- len -= w;
- } while ((uio->uio_resid -= w) != 0);
- }
- return (0);
-
-err:
- fp->_flags |= __SERR;
- return (EOF);
-}
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