Switch to current upstream OpenBSD fwrite.c.

Change-Id: Ife527aafc1e5438f477d711902efe6e6f59f3f8e

1 files changed, 0 insertions, 96 deletions

diff --git a/libc/upstream-freebsd/lib/libc/stdio/fwrite.c b/libc/upstream-freebsd/lib/libc/stdio/fwrite.c
deleted file mode 100644
index 707d36279..000000000
--- a/libc/upstream-freebsd/lib/libc/stdio/fwrite.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/*-
- * 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.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)fwrite.c	8.1 (Berkeley) 6/4/93";
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "namespace.h"
-#include <errno.h>
-#include <stdint.h>
-#include <stdio.h>
-#include "un-namespace.h"
-#include "local.h"
-#include "fvwrite.h"
-#include "libc_private.h"
-
-/*
- * Write `count' objects (each size `size') from memory to the given file.
- * Return the number of whole objects written.
- */
-size_t
-fwrite(const void * __restrict buf, size_t size, size_t count, FILE * __restrict fp)
-{
-	size_t n;
-	struct __suio uio;
-	struct __siov iov;
-
-	/*
-	 * ANSI and SUSv2 require a return value of 0 if size or count are 0.
-	 */
-	if ((count == 0) || (size == 0))
-		return (0);
-
-	/*
-	 * Check for integer overflow.  As an optimization, first check that
-	 * at least one of {count, size} is at least 2^16, since if both
-	 * values are less than that, their product can't possible overflow
-	 * (size_t is always at least 32 bits on FreeBSD).
-	 */
-	if (((count | size) > 0xFFFF) &&
-	    (count > SIZE_MAX / size)) {
-		errno = EINVAL;
-		fp->_flags |= __SERR;
-		return (0);
-	}
-
-	n = count * size;
-
-	iov.iov_base = (void *)buf;
-	uio.uio_resid = iov.iov_len = n;
-	uio.uio_iov = &iov;
-	uio.uio_iovcnt = 1;
-
-	FLOCKFILE(fp);
-	ORIENT(fp, -1);
-	/*
-	 * The usual case is success (__sfvwrite returns 0);
-	 * skip the divide if this happens, since divides are
-	 * generally slow and since this occurs whenever size==0.
-	 */
-	if (__sfvwrite(fp, &uio) != 0)
-	    count = (n - uio.uio_resid) / size;
-	FUNLOCKFILE(fp);
-	return (count);
-}