|
0
|
1 /* Checking macros for unistd functions.
|
|
111
|
2 Copyright (C) 2005-2017 Free Software Foundation, Inc.
|
|
0
|
3
|
|
|
4 This file is part of GCC.
|
|
|
5
|
|
|
6 GCC is free software; you can redistribute it and/or modify it under
|
|
|
7 the terms of the GNU General Public License as published by the Free
|
|
|
8 Software Foundation; either version 3, or (at your option) any later
|
|
|
9 version.
|
|
|
10
|
|
|
11 In addition to the permissions in the GNU General Public License, the
|
|
|
12 Free Software Foundation gives you unlimited permission to link the
|
|
|
13 compiled version of this file into combinations with other programs,
|
|
|
14 and to distribute those combinations without any restriction coming
|
|
|
15 from the use of this file. (The General Public License restrictions
|
|
|
16 do apply in other respects; for example, they cover modification of
|
|
|
17 the file, and distribution when not linked into a combine
|
|
|
18 executable.)
|
|
|
19
|
|
|
20 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
21 WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
22 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
23 for more details.
|
|
|
24
|
|
|
25 Under Section 7 of GPL version 3, you are granted additional
|
|
|
26 permissions described in the GCC Runtime Library Exception, version
|
|
|
27 3.1, as published by the Free Software Foundation.
|
|
|
28
|
|
|
29 You should have received a copy of the GNU General Public License and
|
|
|
30 a copy of the GCC Runtime Library Exception along with this program;
|
|
|
31 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
32 <http://www.gnu.org/licenses/>. */
|
|
|
33
|
|
|
34
|
|
|
35 #ifndef _SSP_UNISTD_H
|
|
|
36 #define _SSP_UNISTD_H 1
|
|
|
37
|
|
|
38 #include <ssp.h>
|
|
|
39 #include_next <unistd.h>
|
|
|
40
|
|
|
41 #if __SSP_FORTIFY_LEVEL > 0
|
|
|
42
|
|
|
43 #undef read
|
|
|
44 #undef readlink
|
|
|
45 #undef getcwd
|
|
|
46
|
|
|
47 extern ssize_t __SSP_REDIRECT (__read_alias, (int __fd, void *__buf,
|
|
|
48 size_t __nbytes), read);
|
|
|
49
|
|
|
50 extern inline __attribute__((__always_inline__)) ssize_t
|
|
|
51 read (int __fd, void *__buf, size_t __nbytes)
|
|
|
52 {
|
|
|
53 if (__ssp_bos0 (__buf) != (size_t) -1 && __nbytes > __ssp_bos0 (__buf))
|
|
|
54 __chk_fail ();
|
|
|
55 return __read_alias (__fd, __buf, __nbytes);
|
|
|
56 }
|
|
|
57
|
|
|
58 extern int __SSP_REDIRECT (__readlink_alias,
|
|
|
59 (const char *__restrict__ __path,
|
|
|
60 char *__restrict__ __buf, size_t __len),
|
|
|
61 readlink);
|
|
|
62
|
|
|
63 extern inline __attribute__((__always_inline__)) int
|
|
|
64 readlink (const char *__restrict__ __path, char *__restrict__ __buf,
|
|
|
65 size_t __len)
|
|
|
66 {
|
|
|
67 if (__ssp_bos (__buf) != (size_t) -1 && __len > __ssp_bos (__buf))
|
|
|
68 __chk_fail ();
|
|
|
69 return __readlink_alias (__path, __buf, __len);
|
|
|
70 }
|
|
|
71
|
|
|
72 extern char *__SSP_REDIRECT (__getcwd_alias,
|
|
|
73 (char *__buf, size_t __size), getcwd);
|
|
|
74
|
|
|
75 extern inline __attribute__((__always_inline__)) char *
|
|
|
76 getcwd (char *__buf, size_t __size)
|
|
|
77 {
|
|
|
78 if (__ssp_bos (__buf) != (size_t) -1 && __size > __ssp_bos (__buf))
|
|
|
79 __chk_fail ();
|
|
|
80 return __getcwd_alias (__buf, __size);
|
|
|
81 }
|
|
|
82
|
|
|
83 #endif /* __SSP_FORTIFY_LEVEL > 0 */
|
|
|
84 #endif /* _SSP_UNISTD_H */
|
