1.\" $OpenBSD: closefrom.2,v 1.4 2007/05/31 19:19:32 jmc Exp $ 2.\" 3.\" Copyright (c) 2004 Ted Unangst. All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.Dd $Mdocdate: May 31 2007 $ 26.Dt CLOSEFROM 2 27.Os 28.Sh NAME 29.Nm closefrom 30.Nd delete many descriptors 31.Sh SYNOPSIS 32.Fd #include <unistd.h> 33.Ft int 34.Fn closefrom "int fd" 35.Sh DESCRIPTION 36The 37.Fn closefrom 38call deletes all descriptors numbered 39.Fa fd 40and higher from the per-process file descriptor table. 41It is effectively the same as calling 42.Xr close 2 43on each descriptor. 44.Sh RETURN VALUES 45Upon successful completion, a value of 0 is returned. 46Otherwise, a value of \-1 is returned and the global integer variable 47.Va errno 48is set to indicate the error. 49.Sh ERRORS 50.Fn closefrom 51will fail if: 52.Bl -tag -width Er 53.It Bq Er EBADF 54.Fa fd 55is greater than all open file descriptors. 56.It Bq Er EINTR 57An interrupt was received. 58.El 59.Sh SEE ALSO 60.Xr close 2 61