\"      $NetBSD: closefrom.3,v 1.6 2022/11/10 00:47:01 gutteridge Exp $
\"      $OpenBSD: closefrom.2,v 1.2 2004/01/12 20:52:09 jmc Exp $
\"
\" Copyright (c) 2004 Ted Unangst.  All rights reserved.
\"
\" 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
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\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR 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
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Dd November 9, 2022
Dt CLOSEFROM 3
Os
Sh NAME
Nm closefrom
Nd delete many descriptors
Sh SYNOPSIS
In unistd.h
Ft int
Fn closefrom "int fd"
Sh DESCRIPTION
The
Fn closefrom
call deletes all descriptors numbered
Fa fd
and higher from the per-process file descriptor table.
It is effectively the same as calling
Xr close 2
on each descriptor.
Sh RETURN VALUES
Upon successful completion, a value of 0 is returned.
Otherwise, a value of \-1 is returned and
Va errno
is set to indicate the error.
Sh ERRORS
Fn closefrom
will fail if:
Bl -tag -width Er
It Bq Er EBADF
Fa fd
is invalid.
It Bq Er EINTR
An interrupt was received.
El
Sh SEE ALSO
Xr close 2
Sh HISTORY
This function first appeared in
Nx 3 .

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