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
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
|
/* Checking macros for unistd functions.
Copyright (C) 2005-2016 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
<http://www.gnu.org/licenses/>. */
#ifndef _UNISTD_H
# error "Never include <bits/unistd.h> directly; use <unistd.h> instead."
#endif
extern ssize_t __read_chk (int __fd, void *__buf, size_t __nbytes,
size_t __buflen) __wur;
extern ssize_t __REDIRECT (__read_alias, (int __fd, void *__buf,
size_t __nbytes), read) __wur;
extern ssize_t __REDIRECT (__read_chk_warn,
(int __fd, void *__buf, size_t __nbytes,
size_t __buflen), __read_chk)
__wur __warnattr ("read called with bigger length than size of "
"the destination buffer");
__fortify_function __wur ssize_t
read (int __fd, void *__buf, size_t __nbytes)
{
if (__bos0 (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__nbytes))
return __read_chk (__fd, __buf, __nbytes, __bos0 (__buf));
if (__nbytes > __bos0 (__buf))
return __read_chk_warn (__fd, __buf, __nbytes, __bos0 (__buf));
}
return __read_alias (__fd, __buf, __nbytes);
}
#ifdef __USE_UNIX98
extern ssize_t __pread_chk (int __fd, void *__buf, size_t __nbytes,
__off_t __offset, size_t __bufsize) __wur;
extern ssize_t __pread64_chk (int __fd, void *__buf, size_t __nbytes,
__off64_t __offset, size_t __bufsize) __wur;
extern ssize_t __REDIRECT (__pread_alias,
(int __fd, void *__buf, size_t __nbytes,
__off_t __offset), pread) __wur;
extern ssize_t __REDIRECT (__pread64_alias,
(int __fd, void *__buf, size_t __nbytes,
__off64_t __offset), pread64) __wur;
extern ssize_t __REDIRECT (__pread_chk_warn,
(int __fd, void *__buf, size_t __nbytes,
__off_t __offset, size_t __bufsize), __pread_chk)
__wur __warnattr ("pread called with bigger length than size of "
"the destination buffer");
extern ssize_t __REDIRECT (__pread64_chk_warn,
(int __fd, void *__buf, size_t __nbytes,
__off64_t __offset, size_t __bufsize),
__pread64_chk)
__wur __warnattr ("pread64 called with bigger length than size of "
"the destination buffer");
# ifndef __USE_FILE_OFFSET64
__fortify_function __wur ssize_t
pread (int __fd, void *__buf, size_t __nbytes, __off_t __offset)
{
if (__bos0 (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__nbytes))
return __pread_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
if ( __nbytes > __bos0 (__buf))
return __pread_chk_warn (__fd, __buf, __nbytes, __offset,
__bos0 (__buf));
}
return __pread_alias (__fd, __buf, __nbytes, __offset);
}
# else
__fortify_function __wur ssize_t
pread (int __fd, void *__buf, size_t __nbytes, __off64_t __offset)
{
if (__bos0 (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__nbytes))
return __pread64_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
if ( __nbytes > __bos0 (__buf))
return __pread64_chk_warn (__fd, __buf, __nbytes, __offset,
__bos0 (__buf));
}
return __pread64_alias (__fd, __buf, __nbytes, __offset);
}
# endif
# ifdef __USE_LARGEFILE64
__fortify_function __wur ssize_t
pread64 (int __fd, void *__buf, size_t __nbytes, __off64_t __offset)
{
if (__bos0 (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__nbytes))
return __pread64_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
if ( __nbytes > __bos0 (__buf))
return __pread64_chk_warn (__fd, __buf, __nbytes, __offset,
__bos0 (__buf));
}
return __pread64_alias (__fd, __buf, __nbytes, __offset);
}
# endif
#endif
#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K
extern ssize_t __readlink_chk (const char *__restrict __path,
char *__restrict __buf, size_t __len,
size_t __buflen)
__THROW __nonnull ((1, 2)) __wur;
extern ssize_t __REDIRECT_NTH (__readlink_alias,
(const char *__restrict __path,
char *__restrict __buf, size_t __len), readlink)
__nonnull ((1, 2)) __wur;
extern ssize_t __REDIRECT_NTH (__readlink_chk_warn,
(const char *__restrict __path,
char *__restrict __buf, size_t __len,
size_t __buflen), __readlink_chk)
__nonnull ((1, 2)) __wur __warnattr ("readlink called with bigger length "
"than size of destination buffer");
__fortify_function __nonnull ((1, 2)) __wur ssize_t
__NTH (readlink (const char *__restrict __path, char *__restrict __buf,
size_t __len))
{
if (__bos (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__len))
return __readlink_chk (__path, __buf, __len, __bos (__buf));
if ( __len > __bos (__buf))
return __readlink_chk_warn (__path, __buf, __len, __bos (__buf));
}
return __readlink_alias (__path, __buf, __len);
}
#endif
#ifdef __USE_ATFILE
extern ssize_t __readlinkat_chk (int __fd, const char *__restrict __path,
char *__restrict __buf, size_t __len,
size_t __buflen)
__THROW __nonnull ((2, 3)) __wur;
extern ssize_t __REDIRECT_NTH (__readlinkat_alias,
(int __fd, const char *__restrict __path,
char *__restrict __buf, size_t __len),
readlinkat)
__nonnull ((2, 3)) __wur;
extern ssize_t __REDIRECT_NTH (__readlinkat_chk_warn,
(int __fd, const char *__restrict __path,
char *__restrict __buf, size_t __len,
size_t __buflen), __readlinkat_chk)
__nonnull ((2, 3)) __wur __warnattr ("readlinkat called with bigger "
"length than size of destination "
"buffer");
__fortify_function __nonnull ((2, 3)) __wur ssize_t
__NTH (readlinkat (int __fd, const char *__restrict __path,
char *__restrict __buf, size_t __len))
{
if (__bos (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__len))
return __readlinkat_chk (__fd, __path, __buf, __len, __bos (__buf));
if (__len > __bos (__buf))
return __readlinkat_chk_warn (__fd, __path, __buf, __len,
__bos (__buf));
}
return __readlinkat_alias (__fd, __path, __buf, __len);
}
#endif
extern char *__getcwd_chk (char *__buf, size_t __size, size_t __buflen)
__THROW __wur;
extern char *__REDIRECT_NTH (__getcwd_alias,
(char *__buf, size_t __size), getcwd) __wur;
extern char *__REDIRECT_NTH (__getcwd_chk_warn,
(char *__buf, size_t __size, size_t __buflen),
__getcwd_chk)
__wur __warnattr ("getcwd caller with bigger length than size of "
"destination buffer");
__fortify_function __wur char *
__NTH (getcwd (char *__buf, size_t __size))
{
if (__bos (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__size))
return __getcwd_chk (__buf, __size, __bos (__buf));
if (__size > __bos (__buf))
return __getcwd_chk_warn (__buf, __size, __bos (__buf));
}
return __getcwd_alias (__buf, __size);
}
#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
extern char *__getwd_chk (char *__buf, size_t buflen)
__THROW __nonnull ((1)) __wur;
extern char *__REDIRECT_NTH (__getwd_warn, (char *__buf), getwd)
__nonnull ((1)) __wur __warnattr ("please use getcwd instead, as getwd "
"doesn't specify buffer size");
__fortify_function __nonnull ((1)) __attribute_deprecated__ __wur char *
__NTH (getwd (char *__buf))
{
if (__bos (__buf) != (size_t) -1)
return __getwd_chk (__buf, __bos (__buf));
return __getwd_warn (__buf);
}
#endif
extern size_t __confstr_chk (int __name, char *__buf, size_t __len,
size_t __buflen) __THROW;
extern size_t __REDIRECT_NTH (__confstr_alias, (int __name, char *__buf,
size_t __len), confstr);
extern size_t __REDIRECT_NTH (__confstr_chk_warn,
(int __name, char *__buf, size_t __len,
size_t __buflen), __confstr_chk)
__warnattr ("confstr called with bigger length than size of destination "
"buffer");
__fortify_function size_t
__NTH (confstr (int __name, char *__buf, size_t __len))
{
if (__bos (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__len))
return __confstr_chk (__name, __buf, __len, __bos (__buf));
if (__bos (__buf) < __len)
return __confstr_chk_warn (__name, __buf, __len, __bos (__buf));
}
return __confstr_alias (__name, __buf, __len);
}
extern int __getgroups_chk (int __size, __gid_t __list[], size_t __listlen)
__THROW __wur;
extern int __REDIRECT_NTH (__getgroups_alias, (int __size, __gid_t __list[]),
getgroups) __wur;
extern int __REDIRECT_NTH (__getgroups_chk_warn,
(int __size, __gid_t __list[], size_t __listlen),
__getgroups_chk)
__wur __warnattr ("getgroups called with bigger group count than what "
"can fit into destination buffer");
__fortify_function int
__NTH (getgroups (int __size, __gid_t __list[]))
{
if (__bos (__list) != (size_t) -1)
{
if (!__builtin_constant_p (__size) || __size < 0)
return __getgroups_chk (__size, __list, __bos (__list));
if (__size * sizeof (__gid_t) > __bos (__list))
return __getgroups_chk_warn (__size, __list, __bos (__list));
}
return __getgroups_alias (__size, __list);
}
extern int __ttyname_r_chk (int __fd, char *__buf, size_t __buflen,
size_t __nreal) __THROW __nonnull ((2));
extern int __REDIRECT_NTH (__ttyname_r_alias, (int __fd, char *__buf,
size_t __buflen), ttyname_r)
__nonnull ((2));
extern int __REDIRECT_NTH (__ttyname_r_chk_warn,
(int __fd, char *__buf, size_t __buflen,
size_t __nreal), __ttyname_r_chk)
__nonnull ((2)) __warnattr ("ttyname_r called with bigger buflen than "
"size of destination buffer");
__fortify_function int
__NTH (ttyname_r (int __fd, char *__buf, size_t __buflen))
{
if (__bos (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__buflen))
return __ttyname_r_chk (__fd, __buf, __buflen, __bos (__buf));
if (__buflen > __bos (__buf))
return __ttyname_r_chk_warn (__fd, __buf, __buflen, __bos (__buf));
}
return __ttyname_r_alias (__fd, __buf, __buflen);
}
#if defined __USE_REENTRANT || defined __USE_POSIX199506
extern int __getlogin_r_chk (char *__buf, size_t __buflen, size_t __nreal)
__nonnull ((1));
extern int __REDIRECT (__getlogin_r_alias, (char *__buf, size_t __buflen),
getlogin_r) __nonnull ((1));
extern int __REDIRECT (__getlogin_r_chk_warn,
(char *__buf, size_t __buflen, size_t __nreal),
__getlogin_r_chk)
__nonnull ((1)) __warnattr ("getlogin_r called with bigger buflen than "
"size of destination buffer");
__fortify_function int
getlogin_r (char *__buf, size_t __buflen)
{
if (__bos (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__buflen))
return __getlogin_r_chk (__buf, __buflen, __bos (__buf));
if (__buflen > __bos (__buf))
return __getlogin_r_chk_warn (__buf, __buflen, __bos (__buf));
}
return __getlogin_r_alias (__buf, __buflen);
}
#endif
#if defined __USE_MISC || defined __USE_UNIX98
extern int __gethostname_chk (char *__buf, size_t __buflen, size_t __nreal)
__THROW __nonnull ((1));
extern int __REDIRECT_NTH (__gethostname_alias, (char *__buf, size_t __buflen),
gethostname) __nonnull ((1));
extern int __REDIRECT_NTH (__gethostname_chk_warn,
(char *__buf, size_t __buflen, size_t __nreal),
__gethostname_chk)
__nonnull ((1)) __warnattr ("gethostname called with bigger buflen than "
"size of destination buffer");
__fortify_function int
__NTH (gethostname (char *__buf, size_t __buflen))
{
if (__bos (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__buflen))
return __gethostname_chk (__buf, __buflen, __bos (__buf));
if (__buflen > __bos (__buf))
return __gethostname_chk_warn (__buf, __buflen, __bos (__buf));
}
return __gethostname_alias (__buf, __buflen);
}
#endif
#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_UNIX98)
extern int __getdomainname_chk (char *__buf, size_t __buflen, size_t __nreal)
__THROW __nonnull ((1)) __wur;
extern int __REDIRECT_NTH (__getdomainname_alias, (char *__buf,
size_t __buflen),
getdomainname) __nonnull ((1)) __wur;
extern int __REDIRECT_NTH (__getdomainname_chk_warn,
(char *__buf, size_t __buflen, size_t __nreal),
__getdomainname_chk)
__nonnull ((1)) __wur __warnattr ("getdomainname called with bigger "
"buflen than size of destination "
"buffer");
__fortify_function int
__NTH (getdomainname (char *__buf, size_t __buflen))
{
if (__bos (__buf) != (size_t) -1)
{
if (!__builtin_constant_p (__buflen))
return __getdomainname_chk (__buf, __buflen, __bos (__buf));
if (__buflen > __bos (__buf))
return __getdomainname_chk_warn (__buf, __buflen, __bos (__buf));
}
return __getdomainname_alias (__buf, __buflen);
}
#endif
|
