1 | /* Checking macros for unistd functions. |
2 | Copyright (C) 2005-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #ifndef _UNISTD_H |
20 | # error "Never include <bits/unistd.h> directly; use <unistd.h> instead." |
21 | #endif |
22 | |
23 | # include <bits/unistd-decl.h> |
24 | |
25 | __fortify_function __wur ssize_t |
26 | read (int __fd, void *__buf, size_t __nbytes) |
27 | { |
28 | return __glibc_fortify (read, __nbytes, sizeof (char), |
29 | __glibc_objsize0 (__buf), |
30 | __fd, __buf, __nbytes); |
31 | } |
32 | |
33 | #if defined __USE_UNIX98 || defined __USE_XOPEN2K8 |
34 | # ifndef __USE_FILE_OFFSET64 |
35 | __fortify_function __wur ssize_t |
36 | pread (int __fd, void *__buf, size_t __nbytes, __off_t __offset) |
37 | { |
38 | return __glibc_fortify (pread, __nbytes, sizeof (char), |
39 | __glibc_objsize0 (__buf), |
40 | __fd, __buf, __nbytes, __offset); |
41 | } |
42 | # else |
43 | __fortify_function __wur ssize_t |
44 | pread (int __fd, void *__buf, size_t __nbytes, __off64_t __offset) |
45 | { |
46 | return __glibc_fortify (pread64, __nbytes, sizeof (char), |
47 | __glibc_objsize0 (__buf), |
48 | __fd, __buf, __nbytes, __offset); |
49 | } |
50 | # endif |
51 | |
52 | # ifdef __USE_LARGEFILE64 |
53 | __fortify_function __wur ssize_t |
54 | pread64 (int __fd, void *__buf, size_t __nbytes, __off64_t __offset) |
55 | { |
56 | return __glibc_fortify (pread64, __nbytes, sizeof (char), |
57 | __glibc_objsize0 (__buf), |
58 | __fd, __buf, __nbytes, __offset); |
59 | } |
60 | # endif |
61 | #endif |
62 | |
63 | #if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K |
64 | __fortify_function __nonnull ((1, 2)) __wur ssize_t |
65 | __NTH (readlink (const char *__restrict __path, char *__restrict __buf, |
66 | size_t __len)) |
67 | { |
68 | return __glibc_fortify (readlink, __len, sizeof (char), |
69 | __glibc_objsize (__buf), |
70 | __path, __buf, __len); |
71 | } |
72 | #endif |
73 | |
74 | #ifdef __USE_ATFILE |
75 | __fortify_function __nonnull ((2, 3)) __wur ssize_t |
76 | __NTH (readlinkat (int __fd, const char *__restrict __path, |
77 | char *__restrict __buf, size_t __len)) |
78 | { |
79 | return __glibc_fortify (readlinkat, __len, sizeof (char), |
80 | __glibc_objsize (__buf), |
81 | __fd, __path, __buf, __len); |
82 | } |
83 | #endif |
84 | |
85 | __fortify_function __wur char * |
86 | __NTH (getcwd (char *__buf, size_t __size)) |
87 | { |
88 | return __glibc_fortify (getcwd, __size, sizeof (char), |
89 | __glibc_objsize (__buf), |
90 | __buf, __size); |
91 | } |
92 | |
93 | #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED |
94 | __fortify_function __nonnull ((1)) __attribute_deprecated__ __wur char * |
95 | __NTH (getwd (char *__buf)) |
96 | { |
97 | if (__glibc_objsize (__buf) != (size_t) -1) |
98 | return __getwd_chk (__buf, __glibc_objsize (__buf)); |
99 | return __getwd_warn (__buf); |
100 | } |
101 | #endif |
102 | |
103 | __fortify_function size_t |
104 | __NTH (confstr (int __name, char *__buf, size_t __len)) |
105 | { |
106 | return __glibc_fortify (confstr, __len, sizeof (char), |
107 | __glibc_objsize (__buf), |
108 | __name, __buf, __len); |
109 | } |
110 | |
111 | |
112 | __fortify_function int |
113 | __NTH (getgroups (int __size, __gid_t __list[])) |
114 | { |
115 | return __glibc_fortify (getgroups, __size, sizeof (__gid_t), |
116 | __glibc_objsize (__list), |
117 | __size, __list); |
118 | } |
119 | |
120 | |
121 | __fortify_function int |
122 | __NTH (ttyname_r (int __fd, char *__buf, size_t __buflen)) |
123 | { |
124 | return __glibc_fortify (ttyname_r, __buflen, sizeof (char), |
125 | __glibc_objsize (__buf), |
126 | __fd, __buf, __buflen); |
127 | } |
128 | |
129 | |
130 | #ifdef __USE_POSIX199506 |
131 | __fortify_function int |
132 | getlogin_r (char *__buf, size_t __buflen) |
133 | { |
134 | return __glibc_fortify (getlogin_r, __buflen, sizeof (char), |
135 | __glibc_objsize (__buf), |
136 | __buf, __buflen); |
137 | } |
138 | #endif |
139 | |
140 | |
141 | #if defined __USE_MISC || defined __USE_UNIX98 |
142 | __fortify_function int |
143 | __NTH (gethostname (char *__buf, size_t __buflen)) |
144 | { |
145 | return __glibc_fortify (gethostname, __buflen, sizeof (char), |
146 | __glibc_objsize (__buf), |
147 | __buf, __buflen); |
148 | } |
149 | #endif |
150 | |
151 | |
152 | #if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_UNIX98) |
153 | __fortify_function int |
154 | __NTH (getdomainname (char *__buf, size_t __buflen)) |
155 | { |
156 | return __glibc_fortify (getdomainname, __buflen, sizeof (char), |
157 | __glibc_objsize (__buf), |
158 | __buf, __buflen); |
159 | } |
160 | #endif |
161 | |