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8215c9ec UD |
1 | /* Checking macros for wchar functions. |
2 | Copyright (C) 2005 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, write to the Free | |
17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
18 | 02111-1307 USA. */ | |
19 | ||
20 | #ifndef _WCHAR_H | |
21 | # error "Never include <bits/wchar.h> directly; use <wchar.h> instead." | |
22 | #endif | |
23 | ||
24 | ||
25 | extern wchar_t *__wmemcpy_chk (wchar_t *__restrict __s1, | |
26 | __const wchar_t *__restrict __s2, size_t __n, | |
27 | size_t __ns1) __THROW; | |
22870975 UD |
28 | extern wchar_t *__REDIRECT_NTH (__wmemcpy_alias, |
29 | (wchar_t *__restrict __s1, | |
30 | __const wchar_t *__restrict __s2, size_t __n), | |
31 | wmemcpy); | |
8215c9ec UD |
32 | |
33 | extern __always_inline wchar_t * | |
34 | wmemcpy (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, | |
35 | size_t __n) | |
36 | { | |
37 | if (__bos0 (__s1) != (size_t) -1) | |
38 | return __wmemcpy_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); | |
39 | return __wmemcpy_alias (__s1, __s2, __n); | |
40 | } | |
41 | ||
42 | ||
43 | extern wchar_t *__wmemmove_chk (wchar_t *__s1, __const wchar_t *__s2, | |
44 | size_t __n, size_t __ns1) __THROW; | |
22870975 UD |
45 | extern wchar_t *__REDIRECT_NTH (__wmemmove_alias, (wchar_t *__s1, |
46 | __const wchar_t *__s2, | |
47 | size_t __n), wmemmove); | |
8215c9ec UD |
48 | |
49 | extern __always_inline wchar_t * | |
50 | wmemmove (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, | |
51 | size_t __n) | |
52 | { | |
53 | if (__bos0 (__s1) != (size_t) -1) | |
54 | return __wmemmove_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); | |
55 | return __wmemmove_alias (__s1, __s2, __n); | |
56 | } | |
57 | ||
58 | ||
59 | #ifdef __USE_GNU | |
60 | extern wchar_t *__wmempcpy_chk (wchar_t *__restrict __s1, | |
61 | __const wchar_t *__restrict __s2, size_t __n, | |
62 | size_t __ns1) __THROW; | |
22870975 UD |
63 | extern wchar_t *__REDIRECT_NTH (__wmempcpy_alias, |
64 | (wchar_t *__restrict __s1, | |
65 | __const wchar_t *__restrict __s2, | |
66 | size_t __n), wmempcpy); | |
8215c9ec UD |
67 | |
68 | extern __always_inline wchar_t * | |
69 | wmempcpy (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, | |
70 | size_t __n) | |
71 | { | |
72 | if (__bos0 (__s1) != (size_t) -1) | |
73 | return __wmempcpy_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); | |
74 | return __wmempcpy_alias (__s1, __s2, __n); | |
75 | } | |
76 | #endif | |
77 | ||
78 | ||
79 | extern wchar_t *__wmemset_chk (wchar_t *__s, wchar_t __c, size_t __n, | |
80 | size_t __ns) __THROW; | |
22870975 UD |
81 | extern wchar_t *__REDIRECT_NTH (__wmemset_alias, (wchar_t *__s, wchar_t __c, |
82 | size_t __n), wmemset); | |
8215c9ec UD |
83 | |
84 | extern __always_inline wchar_t * | |
85 | wmemset (wchar_t *__restrict __s, wchar_t __c, size_t __n) | |
86 | { | |
87 | if (__bos0 (__s) != (size_t) -1) | |
88 | return __wmemset_chk (__s, __c, __n, __bos0 (__s) / sizeof (wchar_t)); | |
89 | return __wmemset_alias (__s, __c, __n); | |
90 | } | |
91 | ||
92 | ||
93 | extern wchar_t *__wcscpy_chk (wchar_t *__restrict __dest, | |
94 | __const wchar_t *__restrict __src, | |
95 | size_t __n) __THROW; | |
22870975 UD |
96 | extern wchar_t *__REDIRECT_NTH (__wcscpy_alias, |
97 | (wchar_t *__restrict __dest, | |
98 | __const wchar_t *__restrict __src), wcscpy); | |
8215c9ec UD |
99 | |
100 | extern __always_inline wchar_t * | |
101 | wcscpy (wchar_t *__dest, __const wchar_t *__src) | |
102 | { | |
103 | if (__bos (__dest) != (size_t) -1) | |
104 | return __wcscpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); | |
105 | return __wcscpy_alias (__dest, __src); | |
106 | } | |
107 | ||
108 | ||
109 | extern wchar_t *__wcpcpy_chk (wchar_t *__dest, __const wchar_t *__src, | |
110 | size_t __destlen) __THROW; | |
22870975 UD |
111 | extern wchar_t *__REDIRECT_NTH (__wcpcpy_alias, (wchar_t *__dest, |
112 | __const wchar_t *__src), | |
113 | wcpcpy); | |
8215c9ec UD |
114 | |
115 | extern __always_inline wchar_t * | |
116 | wcpcpy (wchar_t *__dest, __const wchar_t *__src) | |
117 | { | |
118 | if (__bos (__dest) != (size_t) -1) | |
119 | return __wcpcpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); | |
120 | return __wcpcpy_alias (__dest, __src); | |
121 | } | |
122 | ||
123 | ||
124 | extern wchar_t *__wcsncpy_chk (wchar_t *__restrict __dest, | |
125 | __const wchar_t *__restrict __src, size_t __n, | |
126 | size_t __destlen) __THROW; | |
22870975 UD |
127 | extern wchar_t *__REDIRECT_NTH (__wcsncpy_alias, |
128 | (wchar_t *__restrict __dest, | |
129 | __const wchar_t *__restrict __src, | |
130 | size_t __n), wcsncpy); | |
8215c9ec UD |
131 | |
132 | extern __always_inline wchar_t * | |
133 | wcsncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n) | |
134 | { | |
135 | if (__bos (__dest) != (size_t) -1 | |
136 | && (!__builtin_constant_p (__n) || __bos (__dest) >= __n)) | |
137 | return __wcsncpy_chk (__dest, __src, __n, | |
138 | __bos (__dest) / sizeof (wchar_t)); | |
139 | return __wcsncpy_alias (__dest, __src, __n); | |
140 | } | |
141 | ||
142 | ||
143 | extern wchar_t *__wcpncpy_chk (wchar_t *__restrict __dest, | |
144 | __const wchar_t *__restrict __src, size_t __n, | |
145 | size_t __destlen) __THROW; | |
22870975 UD |
146 | extern wchar_t *__REDIRECT_NTH (__wcpncpy_alias, |
147 | (wchar_t *__restrict __dest, | |
148 | __const wchar_t *__restrict __src, | |
149 | size_t __n), wcpncpy); | |
8215c9ec UD |
150 | |
151 | extern __always_inline wchar_t * | |
152 | wcpncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n) | |
153 | { | |
154 | if (__bos (__dest) != (size_t) -1 | |
155 | && (!__builtin_constant_p (__n) || __bos (__dest) >= __n)) | |
156 | return __wcpncpy_chk (__dest, __src, __n, | |
157 | __bos (__dest) / sizeof (wchar_t)); | |
158 | return __wcpncpy_alias (__dest, __src, __n); | |
159 | } | |
160 | ||
161 | ||
162 | extern wchar_t *__wcscat_chk (wchar_t *__restrict __dest, | |
163 | __const wchar_t *__restrict __src, | |
164 | size_t __destlen) __THROW; | |
22870975 UD |
165 | extern wchar_t *__REDIRECT_NTH (__wcscat_alias, |
166 | (wchar_t *__restrict __dest, | |
167 | __const wchar_t *__restrict __src), wcscat); | |
8215c9ec UD |
168 | |
169 | extern __always_inline wchar_t * | |
170 | wcscat (wchar_t *__dest, __const wchar_t *__src) | |
171 | { | |
172 | if (__bos (__dest) != (size_t) -1) | |
173 | return __wcscat_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); | |
174 | return __wcscat_alias (__dest, __src); | |
175 | } | |
176 | ||
177 | ||
178 | extern wchar_t *__wcsncat_chk (wchar_t *__restrict __dest, | |
179 | __const wchar_t *__restrict __src, | |
180 | size_t __n, size_t __destlen) __THROW; | |
22870975 UD |
181 | extern wchar_t *__REDIRECT_NTH (__wcsncat_alias, |
182 | (wchar_t *__restrict __dest, | |
183 | __const wchar_t *__restrict __src, | |
184 | size_t __n), wcsncat); | |
8215c9ec UD |
185 | |
186 | extern __always_inline wchar_t * | |
187 | wcsncat (wchar_t *__dest, __const wchar_t *__src, size_t __n) | |
188 | { | |
189 | if (__bos (__dest) != (size_t) -1) | |
190 | return __wcsncat_chk (__dest, __src, __n, | |
191 | __bos (__dest) / sizeof (wchar_t)); | |
192 | return __wcsncat_alias (__dest, __src, __n); | |
193 | } | |
194 | ||
195 | ||
196 | extern int __swprintf_chk (wchar_t *__restrict __s, size_t __n, | |
197 | int __flag, size_t __s_len, | |
198 | __const wchar_t *__restrict __format, ...) | |
199 | __THROW /* __attribute__ ((__format__ (__wprintf__, 5, 6))) */; | |
200 | ||
201 | /* XXX We might want to have support in gcc for swprintf. */ | |
757beee1 | 202 | #define swprintf(s, n, ...) \ |
8215c9ec | 203 | (__bos (s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1 \ |
757beee1 UD |
204 | ? __swprintf_chk (s, n, __USE_FORTIFY_LEVEL - 1, __bos (s), __VA_ARGS__) \ |
205 | : swprintf (s, n, __VA_ARGS__)) | |
8215c9ec UD |
206 | |
207 | ||
208 | extern int __vswprintf_chk (wchar_t *__restrict __s, size_t __n, | |
209 | int __flag, size_t __s_len, | |
210 | __const wchar_t *__restrict __format, | |
211 | __gnuc_va_list __arg) | |
212 | __THROW /* __attribute__ ((__format__ (__wprintf__, 5, 0))) */; | |
22870975 UD |
213 | extern int __REDIRECT_NTH (__vswprintf_alias, |
214 | (wchar_t *__restrict __s, size_t __n, | |
215 | __const wchar_t *__restrict __format, | |
216 | __gnuc_va_list __arg), vswprintf) | |
217 | /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */; | |
8215c9ec UD |
218 | |
219 | ||
220 | extern __always_inline int | |
221 | vswprintf (wchar_t *__s, size_t __n, __const wchar_t *__format, | |
222 | __gnuc_va_list __arg) | |
223 | { | |
224 | if (__bos (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1) | |
225 | return __vswprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, __bos (__s), | |
226 | __format, __arg); | |
227 | return vswprintf (__s, __n, __format, __arg); | |
228 | } | |
229 | ||
230 | ||
231 | #if __USE_FORTIFY_LEVEL > 1 | |
232 | ||
233 | extern int __fwprintf_chk (FILE *__restrict __stream, int __flag, | |
234 | __const wchar_t *__restrict __format, ...); | |
235 | extern int __wprintf_chk (int __flag, __const wchar_t *__restrict __format, | |
236 | ...); | |
237 | extern int __vfwprintf_chk (FILE *__restrict __stream, int __flag, | |
238 | __const wchar_t *__restrict __format, | |
24452349 | 239 | __gnuc_va_list __ap); |
8215c9ec | 240 | extern int __vwprintf_chk (int __flag, __const wchar_t *__restrict __format, |
24452349 | 241 | __gnuc_va_list __ap); |
8215c9ec UD |
242 | |
243 | # define wprintf(...) \ | |
244 | __wprintf_chk (__USE_FORTIFY_LEVEL - 1, __VA_ARGS__) | |
245 | # define fwprintf(stream, ...) \ | |
246 | __fwprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__) | |
247 | # define vwprintf(format, ap) \ | |
248 | __vwprintf_chk (__USE_FORTIFY_LEVEL - 1, format, ap) | |
249 | # define vfwprintf(stream, format, ap) \ | |
250 | __vfwprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, format, ap) | |
251 | ||
252 | #endif | |
253 | ||
254 | extern wchar_t *__fgetws_chk (wchar_t *__restrict __s, size_t __size, int __n, | |
255 | FILE *__restrict __stream) __wur; | |
256 | extern wchar_t *__REDIRECT (__fgetws_alias, | |
257 | (wchar_t *__restrict __s, int __n, | |
258 | FILE *__restrict __stream), fgetws) __wur; | |
259 | ||
260 | extern __always_inline __wur wchar_t * | |
261 | fgetws (wchar_t *__restrict __s, int __n, FILE *__restrict __stream) | |
262 | { | |
263 | if (__bos (__s) != (size_t) -1 | |
264 | && (!__builtin_constant_p (__n) || (size_t) __n > __bos (__s))) | |
265 | return __fgetws_chk (__s, __bos (__s), __n, __stream); | |
266 | return __fgetws_alias (__s, __n, __stream); | |
267 | } | |
268 | ||
269 | #ifdef __USE_GNU | |
270 | extern wchar_t *__fgetws_unlocked_chk (wchar_t *__restrict __s, size_t __size, | |
271 | int __n, FILE *__restrict __stream) | |
272 | __wur; | |
273 | extern wchar_t *__REDIRECT (__fgetws_unlocked_alias, | |
274 | (wchar_t *__restrict __s, int __n, | |
275 | FILE *__restrict __stream), fgetws_unlocked) | |
276 | __wur; | |
277 | ||
278 | extern __always_inline __wur wchar_t * | |
279 | fgetws_unlocked (wchar_t *__restrict __s, int __n, FILE *__restrict __stream) | |
280 | { | |
281 | if (__bos (__s) != (size_t) -1 | |
282 | && (!__builtin_constant_p (__n) || (size_t) __n > __bos (__s))) | |
283 | return __fgetws_unlocked_chk (__s, __bos (__s), __n, __stream); | |
284 | return __fgetws_unlocked_alias (__s, __n, __stream); | |
285 | } | |
286 | #endif | |
df6f8969 UD |
287 | |
288 | ||
289 | extern size_t __wcrtomb_chk (char *__s, wchar_t __wchar, mbstate_t *__p, | |
290 | size_t __buflen) __THROW __wur; | |
291 | extern size_t __REDIRECT_NTH (__wcrtomb_alias, | |
292 | (char *__restrict __s, wchar_t __wchar, | |
293 | mbstate_t *__restrict __ps), wcrtomb) __wur; | |
294 | ||
295 | extern __always_inline __wur size_t | |
296 | wcrtomb (char *__s, wchar_t __wchar, mbstate_t *__ps) | |
297 | { | |
298 | /* We would have to include <limits.h> to get a definition of MB_LEN_MAX. | |
299 | But this would only disturb the namespace. So we define our own | |
300 | version here. */ | |
301 | #define __WCHAR_MB_LEN_MAX 16 | |
302 | #if defined MB_LEN_MAX && MB_LEN_MAX != __WCHAR_MB_LEN_MAX | |
303 | # error "Assumed value of MB_LEN_MAX wrong" | |
304 | #endif | |
305 | if (__bos (__s) != (size_t) -1 && __WCHAR_MB_LEN_MAX > __bos (__s)) | |
306 | return __wcrtomb_chk (__s, __wchar, __ps, __bos (__s)); | |
307 | return __wcrtomb_alias (__s, __wchar, __ps); | |
308 | } | |
309 | ||
310 | ||
311 | extern size_t __mbsrtowcs_chk (wchar_t *__restrict __dst, | |
312 | __const char **__restrict __src, | |
313 | size_t __len, mbstate_t *__restrict __ps, | |
314 | size_t __dstlen) __THROW; | |
315 | extern size_t __REDIRECT_NTH (__mbsrtowcs_alias, | |
316 | (wchar_t *__restrict __dst, | |
317 | __const char **__restrict __src, | |
318 | size_t __len, mbstate_t *__restrict __ps), | |
319 | mbsrtowcs); | |
320 | ||
321 | extern __always_inline size_t | |
322 | mbsrtowcs (wchar_t *__restrict __dst, __const char **__restrict __src, | |
323 | size_t __len, mbstate_t *__restrict __ps) | |
324 | { | |
325 | if (__bos (__dst) != (size_t) -1 | |
326 | && (!__builtin_constant_p (__len) | |
327 | || __len * sizeof (wchar_t) > __bos (__dst))) | |
328 | return __mbsrtowcs_chk (__dst, __src, __len, __ps, __bos (__dst)); | |
329 | return __mbsrtowcs_alias (__dst, __src, __len, __ps); | |
330 | } | |
331 | ||
332 | ||
333 | extern size_t __wcsrtombs_chk (char *__restrict __dst, | |
334 | __const wchar_t **__restrict __src, | |
335 | size_t __len, mbstate_t *__restrict __ps, | |
336 | size_t __dstlen) __THROW; | |
337 | extern size_t __REDIRECT_NTH (__wcsrtombs_alias, | |
338 | (char *__restrict __dst, | |
339 | __const wchar_t **__restrict __src, | |
340 | size_t __len, mbstate_t *__restrict __ps), | |
341 | wcsrtombs); | |
342 | ||
343 | extern __always_inline size_t | |
344 | wcsrtombs (char *__restrict __dst, __const wchar_t **__restrict __src, | |
345 | size_t __len, mbstate_t *__restrict __ps) | |
346 | { | |
347 | if (__bos (__dst) != (size_t) -1 | |
348 | && (!__builtin_constant_p (__len) || __len > __bos (__dst))) | |
349 | return __wcsrtombs_chk (__dst, __src, __len, __ps, __bos (__dst)); | |
350 | return __wcsrtombs_alias (__dst, __src, __len, __ps); | |
351 | } | |
352 | ||
353 | ||
354 | #ifdef __USE_GNU | |
355 | extern size_t __mbsnrtowcs_chk (wchar_t *__restrict __dst, | |
356 | __const char **__restrict __src, size_t __nmc, | |
357 | size_t __len, mbstate_t *__restrict __ps, | |
358 | size_t __dstlen) __THROW; | |
359 | extern size_t __REDIRECT_NTH (__mbsnrtowcs_alias, | |
360 | (wchar_t *__restrict __dst, | |
361 | __const char **__restrict __src, size_t __nmc, | |
362 | size_t __len, mbstate_t *__restrict __ps), | |
363 | mbsnrtowcs); | |
364 | ||
365 | extern __always_inline size_t | |
366 | mbsnrtowcs (wchar_t *__restrict __dst, __const char **__restrict __src, | |
367 | size_t __nmc, size_t __len, mbstate_t *__restrict __ps) | |
368 | { | |
369 | if (__bos (__dst) != (size_t) -1 | |
370 | && (!__builtin_constant_p (__len) | |
371 | || __len * sizeof (wchar_t) > __bos (__dst))) | |
372 | return __mbsnrtowcs_chk (__dst, __src, __nmc, __len, __ps, __bos (__dst)); | |
373 | return __mbsnrtowcs_alias (__dst, __src, __nmc, __len, __ps); | |
374 | } | |
375 | ||
376 | ||
377 | extern size_t __wcsnrtombs_chk (char *__restrict __dst, | |
378 | __const wchar_t **__restrict __src, | |
379 | size_t __nwc, size_t __len, | |
380 | mbstate_t *__restrict __ps, size_t __dstlen) | |
381 | __THROW; | |
382 | extern size_t __REDIRECT_NTH (__wcsnrtombs_alias, | |
383 | (char *__restrict __dst, | |
384 | __const wchar_t **__restrict __src, | |
385 | size_t __nwc, size_t __len, | |
386 | mbstate_t *__restrict __ps), wcsnrtombs); | |
387 | ||
388 | extern __always_inline size_t | |
389 | wcsnrtombs (char *__restrict __dst, __const wchar_t **__restrict __src, | |
390 | size_t __nwc, size_t __len, mbstate_t *__restrict __ps) | |
391 | { | |
392 | if (__bos (__dst) != (size_t) -1 | |
393 | && (!__builtin_constant_p (__len) || __len > __bos (__dst))) | |
394 | return __wcsnrtombs_chk (__dst, __src, __nwc, __len, __ps, __bos (__dst)); | |
395 | return __wcsnrtombs_alias (__dst, __src, __nwc, __len, __ps); | |
396 | } | |
397 | #endif |