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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "FSETPOS" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" fsetpos 
+.SH NAME
+fsetpos \- set current file position
+.SH SYNOPSIS
+.LP
+\fB#include <stdio.h>
+.br
+.sp
+int fsetpos(FILE *\fP\fIstream\fP\fB, const fpos_t *\fP\fIpos\fP\fB);
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fIfsetpos\fP() function shall set the file position and state
+indicators for the stream pointed to by \fIstream\fP
+according to the value of the object pointed to by \fIpos\fP, which
+the application shall ensure is a value obtained from an
+earlier call to \fIfgetpos\fP() on the same stream. If a read or write
+error occurs, the
+error indicator for the stream shall be set and \fIfsetpos\fP() fails.
+.LP
+A successful call to the \fIfsetpos\fP() function shall clear the
+end-of-file indicator for the stream and undo any effects of
+\fIungetc\fP() on the same stream. After an \fIfsetpos\fP() call,
+the next operation on an
+update stream may be either input or output.
+.LP
+The
+behavior of \fIfsetpos\fP() on devices which are incapable of seeking
+is implementation-defined. The value of the file offset
+associated with such a device is undefined. 
+.SH RETURN VALUE
+.LP
+The \fIfsetpos\fP() function shall return 0 if it succeeds; otherwise,
+it shall return a non-zero value and set \fIerrno\fP to
+indicate the error.
+.SH ERRORS
+.LP
+The \fIfsetpos\fP() function shall fail if,   \ either the \fIstream\fP
+is unbuffered or the \fIstream\fP's
+buffer needed to be flushed, and the call to \fIfsetpos\fP() causes
+an underlying \fIlseek\fP() or \fIwrite\fP() to be invoked, and: 
+.TP 7
+.B EAGAIN
+The O_NONBLOCK flag is set for the file descriptor and the process
+would be delayed in the write operation. 
+.TP 7
+.B EBADF
+The file descriptor underlying the stream file is not open for writing
+or the stream's buffer needed to be flushed and the file is
+not open. 
+.TP 7
+.B EFBIG
+An
+attempt was made to write a file that exceeds the maximum file size.
+.TP 7
+.B EFBIG
+An attempt was made to write a file that exceeds the process' file
+size limit. 
+.TP 7
+.B EFBIG
+The file is a regular file and an attempt was made to write at or
+beyond the offset maximum associated with the corresponding
+stream. 
+.TP 7
+.B EINTR
+The write operation was terminated due to the receipt of a signal,
+and no data was transferred. 
+.TP 7
+.B EIO
+A
+physical I/O error has occurred, or the process is a member of a background
+process group attempting to perform a \fIwrite\fP() to its controlling
+terminal, TOSTOP is set, the process is neither ignoring nor
+blocking SIGTTOU, and the process group of the process is orphaned.
+This error may also be returned under implementation-defined
+conditions. 
+.TP 7
+.B ENOSPC
+There was no free space remaining on the device containing the file.
+.TP 7
+.B ENXIO
+A
+request was made of a nonexistent device, or the request was outside
+the capabilities of the device. 
+.TP 7
+.B EPIPE
+The file descriptor underlying \fIstream\fP is associated with a pipe
+or FIFO. 
+.TP 7
+.B EPIPE
+An
+attempt was made to write to a pipe or FIFO that is not open for reading
+by any process; a SIGPIPE signal shall also be sent to the
+thread. 
+.sp
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+None.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fIfopen\fP() , \fIftell\fP() , \fIlseek\fP() , \fIrewind\fP() , \fIungetc\fP()
+, \fIwrite\fP() , the
+Base Definitions volume of IEEE\ Std\ 1003.1-2001, \fI<stdio.h>\fP
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group. In the
+event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .