1 files changed, 57 insertions, 18 deletions
diff --git a/src/lib/libc/stdlib/exit.3 b/src/lib/libc/stdlib/exit.3
index adb81ffcb4..e452d454a8 100644
--- a/src/lib/libc/stdlib/exit.3
+++ b/src/lib/libc/stdlib/exit.3
@@ -13,11 +13,7 @@
 .\" 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
+.\" 3. Neither the name of the University nor the names of its contributors
-.\"    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.
 .\"
@@ -33,25 +29,30 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     from: @(#)exit.3        6.6 (Berkeley) 6/29/91
+.\"     $OpenBSD: exit.3,v 1.12 2011/11/17 14:26:14 schwarze Exp $
-.\"     $Id: exit.3,v 1.1.1.1 1995/10/18 08:42:17 deraadt Exp $
 .\"
-.Dd June 29, 1991
+.Dd $Mdocdate: November 17 2011 $
 .Dt EXIT 3
 .Os
 .Sh NAME
-.Nm exit
+.Nm exit, _Exit
 .Nd perform normal program termination
 .Sh SYNOPSIS
 .Fd #include <stdlib.h>
 .Ft void
 .Fn exit "int status"
+.Ft void
+.Fn _Exit "int status"
 .Sh DESCRIPTION
-.Fn Exit
+The
-terminates a process.
+.Fn exit
+and
+.Fn _Exit
+functions terminate a process.
 .Pp
-Before termination it performs the following functions in the
+Before termination,
-order listed:
+.Fn exit
+performs the following operations in the order listed:
 .Bl -enum -offset indent
 .It
 Call the functions registered with the
@@ -66,19 +67,57 @@ 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.
+The
+.Ox
+implementation of
+.Fn _Exit
+does not flush open output streams or unlink files created with the
+.Xr tmpfile 3
+function.
+However, this behavior is implementation-specific.
+.Pp
+Lastly,
+.Fn exit
+and
+.Fn _Exit
+call
+.Xr _exit 2 .
+Note that typically
+.Xr _exit 2
+only passes the lower 8 bits of
+.Fa status
+on to the parent, thus negative values have less meaning.
 .Sh RETURN VALUES
 The
 .Fn exit
-function
+and
-never returns.
+.Fn _Exit
+functions never return.
 .Sh SEE ALSO
 .Xr _exit 2 ,
 .Xr atexit 3 ,
 .Xr intro 3 ,
+.Xr sysexits 3 ,
 .Xr tmpfile 3
 .Sh STANDARDS
 The
 .Fn exit
-function
+and
-conforms to
+.Fn _Exit
-.St -ansiC .
+functions conform to
+.St -ansiC-99 .
+.Sh HISTORY
+An
+.Fn exit
+function first appeared as a system call in
+.At v1 .
+In
+.At v7 ,
+the bare system call was renamed to
+.Xr _exit 2 .

diff --git a/src/lib/libc/stdlib/exit.3 b/src/lib/libc/stdlib/exit.3 index adb81ffcb4..e452d454a8 100644 --- a/src/lib/libc/stdlib/exit.3 +++ b/src/lib/libc/stdlib/exit.3
@@ -13,11 +13,7 @@
13	.\" 2. Redistributions in binary form must reproduce the above copyright	13	.\" 2. Redistributions in binary form must reproduce the above copyright
14	.\" notice, this list of conditions and the following disclaimer in the	14	.\" notice, this list of conditions and the following disclaimer in the
15	.\" documentation and/or other materials provided with the distribution.	15	.\" documentation and/or other materials provided with the distribution.
16	.\" 3. All advertising materials mentioning features or use of this software	16	.\" 3. Neither the name of the University nor the names of its contributors
17	.\" must display the following acknowledgement:
18	.\" This product includes software developed by the University of
19	.\" California, Berkeley and its contributors.
20	.\" 4. Neither the name of the University nor the names of its contributors
21	.\" may be used to endorse or promote products derived from this software	17	.\" may be used to endorse or promote products derived from this software
22	.\" without specific prior written permission.	18	.\" without specific prior written permission.
23	.\"	19	.\"
@@ -33,25 +29,30 @@
33	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF	29	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34	.\" SUCH DAMAGE.	30	.\" SUCH DAMAGE.
35	.\"	31	.\"
36	.\" from: @(#)exit.3 6.6 (Berkeley) 6/29/91	32	.\" $OpenBSD: exit.3,v 1.12 2011/11/17 14:26:14 schwarze Exp $
37	.\" $Id: exit.3,v 1.1.1.1 1995/10/18 08:42:17 deraadt Exp $
38	.\"	33	.\"
39	.Dd June 29, 1991	34	.Dd $Mdocdate: November 17 2011 $
40	.Dt EXIT 3	35	.Dt EXIT 3
41	.Os	36	.Os
42	.Sh NAME	37	.Sh NAME
43	.Nm exit	38	.Nm exit, _Exit
44	.Nd perform normal program termination	39	.Nd perform normal program termination
45	.Sh SYNOPSIS	40	.Sh SYNOPSIS
46	.Fd #include <stdlib.h>	41	.Fd #include <stdlib.h>
47	.Ft void	42	.Ft void
48	.Fn exit "int status"	43	.Fn exit "int status"
		44	.Ft void
		45	.Fn _Exit "int status"
49	.Sh DESCRIPTION	46	.Sh DESCRIPTION
50	.Fn Exit	47	The
51	terminates a process.	48	.Fn exit
		49	and
		50	.Fn _Exit
		51	functions terminate a process.
52	.Pp	52	.Pp
53	Before termination it performs the following functions in the	53	Before termination,
54	order listed:	54	.Fn exit
		55	performs the following operations in the order listed:
55	.Bl -enum -offset indent	56	.Bl -enum -offset indent
56	.It	57	.It
57	Call the functions registered with the	58	Call the functions registered with the
@@ -66,19 +67,57 @@ Unlink all files created with the
66	.Xr tmpfile 3	67	.Xr tmpfile 3
67	function.	68	function.
68	.El	69	.El
		70	.Pp
		71	The
		72	.Fn _Exit
		73	function terminates without calling the functions registered with the
		74	.Xr atexit 3
		75	function.
		76	The
		77	.Ox
		78	implementation of
		79	.Fn _Exit
		80	does not flush open output streams or unlink files created with the
		81	.Xr tmpfile 3
		82	function.
		83	However, this behavior is implementation-specific.
		84	.Pp
		85	Lastly,
		86	.Fn exit
		87	and
		88	.Fn _Exit
		89	call
		90	.Xr _exit 2 .
		91	Note that typically
		92	.Xr _exit 2
		93	only passes the lower 8 bits of
		94	.Fa status
		95	on to the parent, thus negative values have less meaning.
69	.Sh RETURN VALUES	96	.Sh RETURN VALUES
70	The	97	The
71	.Fn exit	98	.Fn exit
72	function	99	and
73	never returns.	100	.Fn _Exit
		101	functions never return.
74	.Sh SEE ALSO	102	.Sh SEE ALSO
75	.Xr _exit 2 ,	103	.Xr _exit 2 ,
76	.Xr atexit 3 ,	104	.Xr atexit 3 ,
77	.Xr intro 3 ,	105	.Xr intro 3 ,
		106	.Xr sysexits 3 ,
78	.Xr tmpfile 3	107	.Xr tmpfile 3
79	.Sh STANDARDS	108	.Sh STANDARDS
80	The	109	The
81	.Fn exit	110	.Fn exit
82	function	111	and
83	conforms to	112	.Fn _Exit
84	.St -ansiC .	113	functions conform to
		114	.St -ansiC-99 .
		115	.Sh HISTORY
		116	An
		117	.Fn exit
		118	function first appeared as a system call in
		119	.At v1 .
		120	In
		121	.At v7 ,
		122	the bare system call was renamed to
		123	.Xr _exit 2 .