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-.\" 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
-.\" 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.
-.\"
-.\" @(#)exit.3 8.1 (Berkeley) 6/4/93
-.\" $FreeBSD: src/lib/libc/stdlib/exit.3,v 1.13 2002/12/13 16:53:50 ru Exp $
-.\"
-.Dd September 9, 2002
-.Dt EXIT 3
-.Os
-.Sh NAME
-.Nm exit , _Exit
-.Nd perform normal program termination
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In stdlib.h
-.Ft void
-.Fn exit "int status"
-.Ft void
-.Fn _Exit "int status"
-.Sh DESCRIPTION
-The
-.Fn exit
-and
-.Fn _Exit
-functions terminate a process.
-.Pp
-Before termination,
-.Fn exit
-performs the following functions in the order listed:
-.Bl -enum -offset indent
-.It
-Call the functions registered with the
-.Xr atexit 3
-function, in the reverse order of their registration.
-.It
-Flush all open output streams.
-.It
-Close all open streams.
-.It
-Unlink all files created with the
-.Xr tmpfile 3
-function.
-.El
-.Pp
-The
-.Fn _Exit
-function terminates without calling the functions registered with the
-.Xr atexit 3
-function, and may or may not perform the other actions listed.
-Both functions make the low-order eight bits of the
-.Fa status
-argument available to a parent process which has called a
-.Xr wait 2 Ns -family
-function.
-.Pp
-The C Standard
-.Pq St -isoC-99
-defines the values
-.Li 0 ,
-.Dv EXIT_SUCCESS ,
-and
-.Dv EXIT_FAILURE
-as possible values of
-.Fa status .
-Cooperating processes may use other values;
-in a program which might be called by a mail transfer agent, the
-the values described in
-.Xr sysexits 3
-may be used to provide more information to the parent process.
-.Pp
-Note that
-.Fn exit
-does nothing to prevent bottomless recursion should a function registered
-using
-.Xr atexit 3
-itself call
-.Fn exit .
-Such functions must call
-.Fn _Exit
-instead (although this has other effects as well which may not be desired).
-.Sh RETURN VALUES
-The
-.Fn exit
-and
-.Fn _Exit
-functions
-never return.
-.Sh SEE ALSO
-.Xr wait 2 ,
-.Xr _exit 2 ,
-.Xr atexit 3 ,
-.Xr intro 3 ,
-.Xr sysexits 3 ,
-.Xr tmpfile 3
-.Sh STANDARDS
-The
-.Fn exit
-and
-.Fn _Exit
-functions conform to
-.St -isoC-99 .