1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
|
/* Checking macros for fcntl functions.
Copyright (C) 2007-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _FCNTL_H
# error "Never include <bits/fcntl2.h> directly; use <fcntl.h> instead."
#endif
/* Check that calls to open and openat with O_CREAT or O_TMPFILE set have an
appropriate third/fourth parameter. */
#ifndef __USE_FILE_OFFSET64
extern int __open_2 (const char *__path, int __oflag) __nonnull ((1));
extern int __REDIRECT (__open_alias, (const char *__path, int __oflag, ...),
open) __nonnull ((1));
#else
extern int __REDIRECT (__open_2, (const char *__path, int __oflag),
__open64_2) __nonnull ((1));
extern int __REDIRECT (__open_alias, (const char *__path, int __oflag, ...),
open64) __nonnull ((1));
#endif
#ifdef __va_arg_pack_len
__errordecl (__open_too_many_args,
"open can be called either with 2 or 3 arguments, not more");
__errordecl (__open_missing_mode,
"open with O_CREAT or O_TMPFILE in second argument needs 3 arguments");
__fortify_function int
open (const char *__path, int __oflag, ...)
{
if (__va_arg_pack_len () > 1)
__open_too_many_args ();
if (__builtin_constant_p (__oflag))
{
if (__OPEN_NEEDS_MODE (__oflag) && __va_arg_pack_len () < 1)
{
__open_missing_mode ();
return __open_2 (__path, __oflag);
}
return __open_alias (__path, __oflag, __va_arg_pack ());
}
if (__va_arg_pack_len () < 1)
return __open_2 (__path, __oflag);
return __open_alias (__path, __oflag, __va_arg_pack ());
}
#elif __fortify_use_clang
__fortify_function __attribute_overloadable__ int
open (__fortify_clang_overload_arg (const char *, ,__path), int __oflag)
__fortify_clang_error (__OPEN_NEEDS_MODE (__oflag),
"open with O_CREAT or O_TMPFILE in second argument needs 3 arguments")
{
return __open_2 (__path, __oflag);
}
__fortify_function __attribute_overloadable__ int
open (__fortify_clang_overload_arg (const char *, ,__path), int __oflag,
mode_t __mode)
{
return __open_alias (__path, __oflag, __mode);
}
#endif
#ifdef __USE_LARGEFILE64
extern int __open64_2 (const char *__path, int __oflag) __nonnull ((1));
extern int __REDIRECT (__open64_alias, (const char *__path, int __oflag,
...), open64) __nonnull ((1));
# ifdef __va_arg_pack_len
__errordecl (__open64_too_many_args,
"open64 can be called either with 2 or 3 arguments, not more");
__errordecl (__open64_missing_mode,
"open64 with O_CREAT or O_TMPFILE in second argument needs 3 arguments");
__fortify_function int
open64 (const char *__path, int __oflag, ...)
{
if (__va_arg_pack_len () > 1)
__open64_too_many_args ();
if (__builtin_constant_p (__oflag))
{
if (__OPEN_NEEDS_MODE (__oflag) && __va_arg_pack_len () < 1)
{
__open64_missing_mode ();
return __open64_2 (__path, __oflag);
}
return __open64_alias (__path, __oflag, __va_arg_pack ());
}
if (__va_arg_pack_len () < 1)
return __open64_2 (__path, __oflag);
return __open64_alias (__path, __oflag, __va_arg_pack ());
}
# elif __fortify_use_clang
__fortify_function_error_function __attribute_overloadable__ int
open64 (const char *__path, int __oflag, mode_t __mode, ...)
__fortify_clang_unavailable ("open64 can be called either with 2 or 3 arguments, not more");
__fortify_function __attribute_overloadable__ int
open64 (__fortify_clang_overload_arg (const char *, ,__path), int __oflag)
__fortify_clang_prefer_this_overload
__fortify_clang_error (__OPEN_NEEDS_MODE (__oflag),
"open64 with O_CREAT or O_TMPFILE in second argument needs 3 arguments")
{
return __open64_2 (__path, __oflag);
}
__fortify_function __attribute_overloadable__ int
open64 (__fortify_clang_overload_arg (const char *, ,__path), int __oflag,
mode_t __mode)
{
return __open64_alias (__path, __oflag, __mode);
}
# endif
#endif
#ifdef __USE_ATFILE
# ifndef __USE_FILE_OFFSET64
extern int __openat_2 (int __fd, const char *__path, int __oflag)
__nonnull ((2));
extern int __REDIRECT (__openat_alias, (int __fd, const char *__path,
int __oflag, ...), openat)
__nonnull ((2));
# else
extern int __REDIRECT (__openat_2, (int __fd, const char *__path,
int __oflag), __openat64_2)
__nonnull ((2));
extern int __REDIRECT (__openat_alias, (int __fd, const char *__path,
int __oflag, ...), openat64)
__nonnull ((2));
# endif
# ifdef __va_arg_pack_len
__errordecl (__openat_too_many_args,
"openat can be called either with 3 or 4 arguments, not more");
__errordecl (__openat_missing_mode,
"openat with O_CREAT or O_TMPFILE in third argument needs 4 arguments");
__fortify_function int
openat (int __fd, const char *__path, int __oflag, ...)
{
if (__va_arg_pack_len () > 1)
__openat_too_many_args ();
if (__builtin_constant_p (__oflag))
{
if (__OPEN_NEEDS_MODE (__oflag) && __va_arg_pack_len () < 1)
{
__openat_missing_mode ();
return __openat_2 (__fd, __path, __oflag);
}
return __openat_alias (__fd, __path, __oflag, __va_arg_pack ());
}
if (__va_arg_pack_len () < 1)
return __openat_2 (__fd, __path, __oflag);
return __openat_alias (__fd, __path, __oflag, __va_arg_pack ());
}
# elif __fortify_use_clang
__fortify_function_error_function __attribute_overloadable__ int
openat (int __fd, const char *__path, int __oflag, mode_t __mode, ...)
__fortify_clang_unavailable ("openat can be called either with 3 or 4 arguments, not more");
__fortify_function __attribute_overloadable__ int
openat (int __fd, __fortify_clang_overload_arg (const char *, ,__path),
int __oflag)
__fortify_clang_prefer_this_overload
__fortify_clang_error (__OPEN_NEEDS_MODE (__oflag),
"openat with O_CREAT or O_TMPFILE in third argument needs 4 arguments")
{
return __openat_2 (__fd, __path, __oflag);
}
__fortify_function __attribute_overloadable__ int
openat (int __fd, __fortify_clang_overload_arg (const char *, ,__path),
int __oflag, mode_t __mode)
{
return __openat_alias (__fd, __path, __oflag, __mode);
}
# endif
# ifdef __USE_LARGEFILE64
extern int __openat64_2 (int __fd, const char *__path, int __oflag)
__nonnull ((2));
extern int __REDIRECT (__openat64_alias, (int __fd, const char *__path,
int __oflag, ...), openat64)
__nonnull ((2));
__errordecl (__openat64_too_many_args,
"openat64 can be called either with 3 or 4 arguments, not more");
__errordecl (__openat64_missing_mode,
"openat64 with O_CREAT or O_TMPFILE in third argument needs 4 arguments");
# ifdef __va_arg_pack_len
__fortify_function int
openat64 (int __fd, const char *__path, int __oflag, ...)
{
if (__va_arg_pack_len () > 1)
__openat64_too_many_args ();
if (__builtin_constant_p (__oflag))
{
if (__OPEN_NEEDS_MODE (__oflag) && __va_arg_pack_len () < 1)
{
__openat64_missing_mode ();
return __openat64_2 (__fd, __path, __oflag);
}
return __openat64_alias (__fd, __path, __oflag, __va_arg_pack ());
}
if (__va_arg_pack_len () < 1)
return __openat64_2 (__fd, __path, __oflag);
return __openat64_alias (__fd, __path, __oflag, __va_arg_pack ());
}
# elif __fortify_use_clang
__fortify_function_error_function __attribute_overloadable__ int
openat64 (int __fd, const char *__path, int __oflag, mode_t __mode, ...)
__fortify_clang_unavailable ("openat64 can be called either with 3 or 4 arguments, not more");
__fortify_function __attribute_overloadable__ int
openat64 (int __fd, __fortify_clang_overload_arg (const char *, ,__path),
int __oflag)
__fortify_clang_prefer_this_overload
__fortify_clang_error (__OPEN_NEEDS_MODE (__oflag),
"openat64 with O_CREAT or O_TMPFILE in third argument needs 4 arguments")
{
return __openat64_2 (__fd, __path, __oflag);
}
__fortify_function __attribute_overloadable__ int
openat64 (int __fd, __fortify_clang_overload_arg (const char *, ,__path),
int __oflag, mode_t __mode)
{
return __openat64_alias (__fd, __path, __oflag, __mode);
}
# endif
# endif
#endif
|
