/* fwrite.c - write to a file. stdio.h *//* Copyright 1992-1993 Wind River Systems, Inc. *//*modification history--------------------01c,05mar93,jdi  documentation cleanup for 5.1.01b,20sep92,smb  documentation additions01a,29jul92,jcf  Added OBJ_VERIFY	   +smb  taken from UCB stdio*//*DESCRIPTION * Copyright (c) 1990 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. All advertising materials mentioning features or use of this software *    must display the following acknowledgement: *	This product includes software developed by the University of *	California, Berkeley and its contributors. * 4. 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.INCLUDE FILE: stdio.hSEE ALSO: American National Standard X3.159-1989NOMANUAL*/#include "vxWorks.h"#include "objLib.h"#include "private/stdioP.h"#include "private/fvwriteP.h"/******************************************************************************** fwrite - write from a specified array (ANSI)** This routine writes, from the array <buf>, up to <count> elements whose* size is <size>, to a specified stream.  The file position indicator for* the stream (if defined) is advanced by the number of characters* successfully written.  If an error occurs, the resulting value of the file* position indicator for the stream is indeterminate.* * INCLUDE FILES: stdio.h ** RETURNS:* The number of elements successfully written, which will be less than* <count> only if a write error is encountered.*/int fwrite    (    const void *  buf,		/* where to copy from */    size_t	  size,		/* element size */    size_t	  count,	/* no. of elements */    FILE *	  fp		/* stream to write to */    )    {    size_t		n;    struct __suio	uio;    struct __siov	iov;    if (OBJ_VERIFY (fp, fpClassId) != OK)	return (0);    iov.iov_base	= (void *)buf;    uio.uio_resid	= iov.iov_len = n = (count * size);    uio.uio_iov		= &iov;    uio.uio_iovcnt	= 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)	return (count);    return ((n - uio.uio_resid) / size);    }