62 lines
2.1 KiB
Groff
62 lines
2.1 KiB
Groff
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.\" $NetBSD: closefrom.3,v 1.5 2004/06/01 16:12:51 kleink Exp $
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.\" $OpenBSD: closefrom.2,v 1.2 2004/01/12 20:52:09 jmc Exp $
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.\"
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.\" Copyright (c) 2004 Ted Unangst. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.Dd June 1, 2004
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.Dt CLOSEFROM 3
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.Os
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.Sh NAME
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.Nm closefrom
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.Nd delete many descriptors
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.Sh SYNOPSIS
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.In unistd.h
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.Ft int
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.Fn closefrom "int fd"
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.Sh DESCRIPTION
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The
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.Fn closefrom
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call deletes all descriptors numbered
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.Fa fd
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and higher from the per-process file descriptor table.
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It is effectively the same as calling
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.Xr close 2
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on each descriptor.
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.Sh RETURN VALUES
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Upon successful completion, a value of 0 is returned.
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Otherwise, a value of \-1 is returned and
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.Va errno
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is set to indicate the error.
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.Sh ERRORS
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.Fn closefrom
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will fail if:
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.Bl -tag -width Er
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.It Bq Er EBADF
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.Fa fd
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is invalid.
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.It Bq Er EINTR
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An interrupt was received.
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.El
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.Sh SEE ALSO
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.Xr close 2
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