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author | cvs2svn <admin@example.com> | 2025-04-14 17:32:06 +0000 |
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committer | cvs2svn <admin@example.com> | 2025-04-14 17:32:06 +0000 |
commit | eb8dd9dca1228af0cd132f515509051ecfabf6f6 (patch) | |
tree | edb6da6af7e865d488dc1a29309f1e1ec226e603 /src/lib/libc/stdlib/alloca.3 | |
parent | 247f0352e0ed72a4f476db9dc91f4d982bc83eb2 (diff) | |
download | openbsd-tb_20250414.tar.gz openbsd-tb_20250414.tar.bz2 openbsd-tb_20250414.zip |
This commit was manufactured by cvs2git to create tag 'tb_20250414'.tb_20250414
Diffstat (limited to 'src/lib/libc/stdlib/alloca.3')
-rw-r--r-- | src/lib/libc/stdlib/alloca.3 | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/src/lib/libc/stdlib/alloca.3 b/src/lib/libc/stdlib/alloca.3 deleted file mode 100644 index 5252ba586f..0000000000 --- a/src/lib/libc/stdlib/alloca.3 +++ /dev/null | |||
@@ -1,74 +0,0 @@ | |||
1 | .\" Copyright (c) 1980, 1991 Regents of the University of California. | ||
2 | .\" All rights reserved. | ||
3 | .\" | ||
4 | .\" Redistribution and use in source and binary forms, with or without | ||
5 | .\" modification, are permitted provided that the following conditions | ||
6 | .\" are met: | ||
7 | .\" 1. Redistributions of source code must retain the above copyright | ||
8 | .\" notice, this list of conditions and the following disclaimer. | ||
9 | .\" 2. Redistributions in binary form must reproduce the above copyright | ||
10 | .\" notice, this list of conditions and the following disclaimer in the | ||
11 | .\" documentation and/or other materials provided with the distribution. | ||
12 | .\" 3. Neither the name of the University nor the names of its contributors | ||
13 | .\" may be used to endorse or promote products derived from this software | ||
14 | .\" without specific prior written permission. | ||
15 | .\" | ||
16 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
17 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
18 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
19 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
20 | .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
21 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
22 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
23 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
24 | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
25 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
26 | .\" SUCH DAMAGE. | ||
27 | .\" | ||
28 | .\" $OpenBSD: alloca.3,v 1.14 2015/01/17 18:01:43 tedu Exp $ | ||
29 | .\" | ||
30 | .Dd $Mdocdate: January 17 2015 $ | ||
31 | .Dt ALLOCA 3 | ||
32 | .Os | ||
33 | .Sh NAME | ||
34 | .Nm alloca | ||
35 | .Nd memory allocator | ||
36 | .Sh SYNOPSIS | ||
37 | .In stdlib.h | ||
38 | .Ft void * | ||
39 | .Fn alloca "size_t size" | ||
40 | .Sh DESCRIPTION | ||
41 | The | ||
42 | .Fn alloca | ||
43 | function allocates | ||
44 | .Fa size | ||
45 | bytes of space in the stack frame of the caller. | ||
46 | This temporary space is automatically freed on return. | ||
47 | .Sh RETURN VALUES | ||
48 | The | ||
49 | .Fn alloca | ||
50 | function returns a pointer to the beginning of the allocated space. | ||
51 | .Sh SEE ALSO | ||
52 | .Xr pagesize 1 , | ||
53 | .Xr brk 2 , | ||
54 | .Xr malloc 3 | ||
55 | .\" .Sh HISTORY | ||
56 | .\" The | ||
57 | .\" .Fn alloca | ||
58 | .\" function appeared in | ||
59 | .\" .Bx ?? . | ||
60 | .\" The function appeared in 32v, pwb and pwb.2 and in 3bsd 4bsd | ||
61 | .\" The first man page (or link to a man page that I can find at the | ||
62 | .\" moment is 4.3... | ||
63 | .Sh CAVEATS | ||
64 | The | ||
65 | .Fn alloca | ||
66 | function is unsafe because it cannot ensure that the pointer | ||
67 | returned points to a valid and usable block of memory. | ||
68 | The allocation made may exceed the bounds of the stack, or even go | ||
69 | further into other objects in memory, and | ||
70 | .Fn alloca | ||
71 | cannot determine such an error. | ||
72 | Avoid | ||
73 | .Fn alloca | ||
74 | with large unbounded allocations. | ||