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+.\"	$NetBSD: fread.3,v 1.5 1995/02/02 01:15:42 jtc Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and the American National Standards Committee X3,
+.\" on Information Processing Systems.
+.\"
+.\" 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.
+.\"
+.\"     @(#)fread.3	8.2 (Berkeley) 3/8/94
+.\"
+.Dd March 8, 1994
+.Dt FREAD 3
+.Os
+.Sh NAME
+.Nm fread ,
+.Nm fwrite
+.Nd binary stream input/output
+.Sh SYNOPSIS
+.Fd #include <stdio.h>
+.Ft size_t
+.Fn fread "void *ptr" "size_t size" "size_t nmemb" "FILE *stream"
+.Ft size_t
+.Fn fwrite "const void *ptr" "size_t size" "size_t nmemb" "FILE *stream"
+.Sh DESCRIPTION
+The function
+.Fn fread
+reads
+.Fa nmemb
+objects, each
+.Fa size
+bytes long, from the stream pointed to by
+.Fa stream ,
+storing them at the location given by
+.Fa ptr .
+.Pp
+The function
+.Fn fwrite
+writes
+.Fa nmemb
+objects, each
+.Fa size
+bytes long, to the stream pointed to by
+.Fa stream ,
+obtaining them from the location given by
+.Fa ptr .
+.Sh RETURN VALUES
+The functions
+.Fn fread
+and
+.Fn fwrite
+advance the file position indicator for the stream
+by the number of bytes read or written.
+They return the number of objects read or written.
+If an error occurs, or the end-of-file is reached,
+the return value is a short object count (or zero).
+.Pp
+The function
+.Fn fread
+does not distinguish between end-of-file and error, and callers
+must use
+.Xr feof 3
+and
+.Xr ferror 3
+to determine which occurred.
+The function
+.Fn fwrite
+returns a value less than
+.Fa nmemb
+only if a write error has occurred.
+.Sh SEE ALSO
+.Xr read 2 ,
+.Xr write 2
+.Sh STANDARDS
+The functions
+.Fn fread
+and
+.Fn fwrite
+conform to
+.St -ansiC .