diff options
Diffstat (limited to 'src/lib/libc/stdlib/exit.3')
-rw-r--r-- | src/lib/libc/stdlib/exit.3 | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/lib/libc/stdlib/exit.3 b/src/lib/libc/stdlib/exit.3 new file mode 100644 index 0000000000..fa233ac75f --- /dev/null +++ b/src/lib/libc/stdlib/exit.3 | |||
@@ -0,0 +1,114 @@ | |||
1 | .\" Copyright (c) 1990, 1991 The Regents of the University of California. | ||
2 | .\" All rights reserved. | ||
3 | .\" | ||
4 | .\" This code is derived from software contributed to Berkeley by | ||
5 | .\" the American National Standards Committee X3, on Information | ||
6 | .\" Processing Systems. | ||
7 | .\" | ||
8 | .\" Redistribution and use in source and binary forms, with or without | ||
9 | .\" modification, are permitted provided that the following conditions | ||
10 | .\" are met: | ||
11 | .\" 1. Redistributions of source code must retain the above copyright | ||
12 | .\" notice, this list of conditions and the following disclaimer. | ||
13 | .\" 2. Redistributions in binary form must reproduce the above copyright | ||
14 | .\" notice, this list of conditions and the following disclaimer in the | ||
15 | .\" documentation and/or other materials provided with the distribution. | ||
16 | .\" 3. Neither the name of the University nor the names of its contributors | ||
17 | .\" may be used to endorse or promote products derived from this software | ||
18 | .\" without specific prior written permission. | ||
19 | .\" | ||
20 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
21 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
22 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
23 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
24 | .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
25 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
26 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
27 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
28 | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
29 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
30 | .\" SUCH DAMAGE. | ||
31 | .\" | ||
32 | .\" $OpenBSD: exit.3,v 1.10 2004/05/03 17:21:13 millert Exp $ | ||
33 | .\" | ||
34 | .Dd January 21, 2004 | ||
35 | .Dt EXIT 3 | ||
36 | .Os | ||
37 | .Sh NAME | ||
38 | .Nm exit, _Exit | ||
39 | .Nd perform normal program termination | ||
40 | .Sh SYNOPSIS | ||
41 | .Fd #include <stdlib.h> | ||
42 | .Ft void | ||
43 | .Fn exit "int status" | ||
44 | .Ft void | ||
45 | .Fn _Exit "int status" | ||
46 | .Sh DESCRIPTION | ||
47 | The | ||
48 | .Fn exit | ||
49 | and | ||
50 | .Fn _Exit | ||
51 | functions terminate a process. | ||
52 | .Pp | ||
53 | Before termination, | ||
54 | .Fn exit | ||
55 | performs the following operations in the order listed: | ||
56 | .Bl -enum -offset indent | ||
57 | .It | ||
58 | Call the functions registered with the | ||
59 | .Xr atexit 3 | ||
60 | function, in the reverse order of their registration. | ||
61 | .It | ||
62 | Flush all open output streams. | ||
63 | .It | ||
64 | Close all open streams. | ||
65 | .It | ||
66 | Unlink all files created with the | ||
67 | .Xr tmpfile 3 | ||
68 | function. | ||
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. | ||
96 | .Sh RETURN VALUES | ||
97 | The | ||
98 | .Fn exit | ||
99 | and | ||
100 | .Fn _Exit | ||
101 | functions never return. | ||
102 | .Sh SEE ALSO | ||
103 | .Xr _exit 2 , | ||
104 | .Xr atexit 3 , | ||
105 | .Xr intro 3 , | ||
106 | .Xr sysexits 3 , | ||
107 | .Xr tmpfile 3 | ||
108 | .Sh STANDARDS | ||
109 | The | ||
110 | .Fn exit | ||
111 | and | ||
112 | .Fn _Exit | ||
113 | functions conform to | ||
114 | .St -ansiC-99 . | ||