]>
Commit | Line | Data |
---|---|---|
d4697bc9 | 1 | /* Copyright (C) 1993-2014 Free Software Foundation, Inc. |
41bdb6e2 | 2 | This file is part of the GNU C Library. |
40a55d20 | 3 | |
41bdb6e2 AJ |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
40a55d20 | 8 | |
41bdb6e2 AJ |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
40a55d20 | 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 AJ |
12 | Lesser General Public License for more details. |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. | |
41bdb6e2 AJ |
17 | |
18 | As a special exception, if you link the code in this file with | |
19 | files compiled with a GNU compiler to produce an executable, | |
20 | that does not cause the resulting executable to be covered by | |
21 | the GNU Lesser General Public License. This exception does not | |
22 | however invalidate any other reasons why the executable file | |
23 | might be covered by the GNU Lesser General Public License. | |
24 | This exception applies to code released by its copyright holders | |
25 | in files containing the exception. */ | |
96aa2d94 | 26 | |
b1848fde SP |
27 | /* NOTE: libio is now exclusively used only by glibc since libstdc++ has its |
28 | own implementation. As a result, functions that were implemented for C++ | |
29 | (like *sputn) may no longer have C++ semantics. This is of course only | |
30 | relevant for internal callers of these functions since these functions are | |
31 | not intended for external use otherwise. | |
32 | ||
33 | FIXME: All of the C++ cruft eventually needs to go away. */ | |
34 | ||
96aa2d94 | 35 | #include <errno.h> |
a2b08ee5 UD |
36 | #ifndef __set_errno |
37 | # define __set_errno(Val) errno = (Val) | |
38 | #endif | |
39 | #if defined __GLIBC__ && __GLIBC__ >= 2 | |
40 | # include <bits/libc-lock.h> | |
41 | #else | |
42 | /*# include <comthread.h>*/ | |
43 | #endif | |
96aa2d94 | 44 | |
c6251f03 RM |
45 | #include <math_ldbl_opt.h> |
46 | ||
96aa2d94 RM |
47 | #include "iolibio.h" |
48 | ||
77fe0b9c UD |
49 | /* Control of exported symbols. Used in glibc. By default we don't |
50 | do anything. */ | |
37ba7d66 UD |
51 | #ifndef libc_hidden_proto |
52 | # define libc_hidden_proto(name) | |
53 | #endif | |
54 | #ifndef libc_hidden_def | |
55 | # define libc_hidden_def(name) | |
56 | #endif | |
57 | #ifndef libc_hidden_weak | |
58 | # define libc_hidden_weak(name) | |
59 | #endif | |
60 | ||
4547c1a4 UD |
61 | #ifdef __cplusplus |
62 | extern "C" { | |
63 | #endif | |
96aa2d94 RM |
64 | |
65 | #define _IO_seek_set 0 | |
66 | #define _IO_seek_cur 1 | |
67 | #define _IO_seek_end 2 | |
68 | ||
f65fd747 UD |
69 | /* THE JUMPTABLE FUNCTIONS. |
70 | ||
71 | * The _IO_FILE type is used to implement the FILE type in GNU libc, | |
72 | * as well as the streambuf class in GNU iostreams for C++. | |
73 | * These are all the same, just used differently. | |
74 | * An _IO_FILE (or FILE) object is allows followed by a pointer to | |
75 | * a jump table (of pointers to functions). The pointer is accessed | |
c0c3f78a | 76 | * with the _IO_JUMPS macro. The jump table has an eccentric format, |
f65fd747 | 77 | * so as to be compatible with the layout of a C++ virtual function table. |
6d52618b | 78 | * (as implemented by g++). When a pointer to a streambuf object is |
f65fd747 UD |
79 | * coerced to an (_IO_FILE*), then _IO_JUMPS on the result just |
80 | * happens to point to the virtual function table of the streambuf. | |
81 | * Thus the _IO_JUMPS function table used for C stdio/libio does | |
6d52618b | 82 | * double duty as the virtual function table for C++ streambuf. |
f65fd747 UD |
83 | * |
84 | * The entries in the _IO_JUMPS function table (and hence also the | |
85 | * virtual functions of a streambuf) are described below. | |
86 | * The first parameter of each function entry is the _IO_FILE/streambuf | |
87 | * object being acted on (i.e. the 'this' parameter). | |
88 | */ | |
96aa2d94 | 89 | |
00404a96 RM |
90 | #ifdef _LIBC |
91 | # include <shlib-compat.h> | |
92 | # if !SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1) | |
93 | /* Setting this macro disables the use of the _vtable_offset | |
94 | bias in _IO_JUMPS_FUNCS, below. That is only needed if we | |
95 | want to support old binaries (see oldfileops.c). */ | |
96 | # define _G_IO_NO_BACKWARD_COMPAT 1 | |
97 | # endif | |
98 | #endif | |
99 | ||
bd355af0 UD |
100 | #if (!defined _IO_USE_OLD_IO_FILE \ |
101 | && (!defined _G_IO_NO_BACKWARD_COMPAT || _G_IO_NO_BACKWARD_COMPAT == 0)) | |
102 | # define _IO_JUMPS_OFFSET 1 | |
103 | #endif | |
104 | ||
2ca8b1ee | 105 | #define _IO_JUMPS(THIS) (THIS)->vtable |
d64b6ad0 | 106 | #define _IO_WIDE_JUMPS(THIS) ((struct _IO_FILE *) (THIS))->_wide_data->_wide_vtable |
7163e69e UD |
107 | #define _IO_CHECK_WIDE(THIS) (((struct _IO_FILE *) (THIS))->_wide_data != NULL) |
108 | ||
bd355af0 UD |
109 | #if _IO_JUMPS_OFFSET |
110 | # define _IO_JUMPS_FUNC(THIS) \ | |
2ca8b1ee | 111 | (*(struct _IO_jump_t **) ((void *) &_IO_JUMPS ((struct _IO_FILE_plus *) (THIS)) \ |
bd355af0 | 112 | + (THIS)->_vtable_offset)) |
bbdef797 | 113 | # define _IO_vtable_offset(THIS) (THIS)->_vtable_offset |
bd355af0 | 114 | #else |
2ca8b1ee | 115 | # define _IO_JUMPS_FUNC(THIS) _IO_JUMPS ((struct _IO_FILE_plus *) (THIS)) |
bbdef797 | 116 | # define _IO_vtable_offset(THIS) 0 |
bd355af0 | 117 | #endif |
6e06ae59 | 118 | #define _IO_WIDE_JUMPS_FUNC(THIS) _IO_WIDE_JUMPS(THIS) |
28361c5e JM |
119 | #define JUMP_FIELD(TYPE, NAME) TYPE NAME |
120 | #define JUMP0(FUNC, THIS) (_IO_JUMPS_FUNC(THIS)->FUNC) (THIS) | |
121 | #define JUMP1(FUNC, THIS, X1) (_IO_JUMPS_FUNC(THIS)->FUNC) (THIS, X1) | |
122 | #define JUMP2(FUNC, THIS, X1, X2) (_IO_JUMPS_FUNC(THIS)->FUNC) (THIS, X1, X2) | |
123 | #define JUMP3(FUNC, THIS, X1,X2,X3) (_IO_JUMPS_FUNC(THIS)->FUNC) (THIS, X1,X2, X3) | |
124 | #define JUMP_INIT(NAME, VALUE) VALUE | |
125 | #define JUMP_INIT_DUMMY JUMP_INIT(dummy, 0), JUMP_INIT (dummy2, 0) | |
126 | ||
127 | #define WJUMP0(FUNC, THIS) (_IO_WIDE_JUMPS_FUNC(THIS)->FUNC) (THIS) | |
128 | #define WJUMP1(FUNC, THIS, X1) (_IO_WIDE_JUMPS_FUNC(THIS)->FUNC) (THIS, X1) | |
129 | #define WJUMP2(FUNC, THIS, X1, X2) (_IO_WIDE_JUMPS_FUNC(THIS)->FUNC) (THIS, X1, X2) | |
130 | #define WJUMP3(FUNC, THIS, X1,X2,X3) (_IO_WIDE_JUMPS_FUNC(THIS)->FUNC) (THIS, X1,X2, X3) | |
96aa2d94 | 131 | |
f65fd747 | 132 | /* The 'finish' function does any final cleaning up of an _IO_FILE object. |
110215a9 | 133 | It does not delete (free) it, but does everything else to finalize it. |
f65fd747 | 134 | It matches the streambuf::~streambuf virtual destructor. */ |
79937577 | 135 | typedef void (*_IO_finish_t) (_IO_FILE *, int); /* finalize */ |
40a55d20 | 136 | #define _IO_FINISH(FP) JUMP1 (__finish, FP, 0) |
6e06ae59 | 137 | #define _IO_WFINISH(FP) WJUMP1 (__finish, FP, 0) |
f65fd747 UD |
138 | |
139 | /* The 'overflow' hook flushes the buffer. | |
140 | The second argument is a character, or EOF. | |
141 | It matches the streambuf::overflow virtual function. */ | |
79937577 | 142 | typedef int (*_IO_overflow_t) (_IO_FILE *, int); |
40a55d20 | 143 | #define _IO_OVERFLOW(FP, CH) JUMP1 (__overflow, FP, CH) |
6e06ae59 | 144 | #define _IO_WOVERFLOW(FP, CH) WJUMP1 (__overflow, FP, CH) |
f65fd747 UD |
145 | |
146 | /* The 'underflow' hook tries to fills the get buffer. | |
147 | It returns the next character (as an unsigned char) or EOF. The next | |
6d52618b | 148 | character remains in the get buffer, and the get position is not changed. |
f65fd747 | 149 | It matches the streambuf::underflow virtual function. */ |
79937577 | 150 | typedef int (*_IO_underflow_t) (_IO_FILE *); |
40a55d20 | 151 | #define _IO_UNDERFLOW(FP) JUMP0 (__underflow, FP) |
6e06ae59 | 152 | #define _IO_WUNDERFLOW(FP) WJUMP0 (__underflow, FP) |
f65fd747 UD |
153 | |
154 | /* The 'uflow' hook returns the next character in the input stream | |
155 | (cast to unsigned char), and increments the read position; | |
156 | EOF is returned on failure. | |
157 | It matches the streambuf::uflow virtual function, which is not in the | |
158 | cfront implementation, but was added to C++ by the ANSI/ISO committee. */ | |
40a55d20 | 159 | #define _IO_UFLOW(FP) JUMP0 (__uflow, FP) |
6e06ae59 | 160 | #define _IO_WUFLOW(FP) WJUMP0 (__uflow, FP) |
f65fd747 UD |
161 | |
162 | /* The 'pbackfail' hook handles backing up. | |
163 | It matches the streambuf::pbackfail virtual function. */ | |
79937577 | 164 | typedef int (*_IO_pbackfail_t) (_IO_FILE *, int); |
40a55d20 | 165 | #define _IO_PBACKFAIL(FP, CH) JUMP1 (__pbackfail, FP, CH) |
6e06ae59 | 166 | #define _IO_WPBACKFAIL(FP, CH) WJUMP1 (__pbackfail, FP, CH) |
f65fd747 UD |
167 | |
168 | /* The 'xsputn' hook writes upto N characters from buffer DATA. | |
2b766585 | 169 | Returns EOF or the number of character actually written. |
f65fd747 | 170 | It matches the streambuf::xsputn virtual function. */ |
79937577 UD |
171 | typedef _IO_size_t (*_IO_xsputn_t) (_IO_FILE *FP, const void *DATA, |
172 | _IO_size_t N); | |
40a55d20 | 173 | #define _IO_XSPUTN(FP, DATA, N) JUMP2 (__xsputn, FP, DATA, N) |
6e06ae59 | 174 | #define _IO_WXSPUTN(FP, DATA, N) WJUMP2 (__xsputn, FP, DATA, N) |
f65fd747 UD |
175 | |
176 | /* The 'xsgetn' hook reads upto N characters into buffer DATA. | |
177 | Returns the number of character actually read. | |
178 | It matches the streambuf::xsgetn virtual function. */ | |
79937577 | 179 | typedef _IO_size_t (*_IO_xsgetn_t) (_IO_FILE *FP, void *DATA, _IO_size_t N); |
40a55d20 | 180 | #define _IO_XSGETN(FP, DATA, N) JUMP2 (__xsgetn, FP, DATA, N) |
6e06ae59 | 181 | #define _IO_WXSGETN(FP, DATA, N) WJUMP2 (__xsgetn, FP, DATA, N) |
f65fd747 UD |
182 | |
183 | /* The 'seekoff' hook moves the stream position to a new position | |
184 | relative to the start of the file (if DIR==0), the current position | |
185 | (MODE==1), or the end of the file (MODE==2). | |
186 | It matches the streambuf::seekoff virtual function. | |
187 | It is also used for the ANSI fseek function. */ | |
79937577 UD |
188 | typedef _IO_off64_t (*_IO_seekoff_t) (_IO_FILE *FP, _IO_off64_t OFF, int DIR, |
189 | int MODE); | |
40a55d20 | 190 | #define _IO_SEEKOFF(FP, OFF, DIR, MODE) JUMP3 (__seekoff, FP, OFF, DIR, MODE) |
6e06ae59 | 191 | #define _IO_WSEEKOFF(FP, OFF, DIR, MODE) WJUMP3 (__seekoff, FP, OFF, DIR, MODE) |
f65fd747 UD |
192 | |
193 | /* The 'seekpos' hook also moves the stream position, | |
dfd2257a | 194 | but to an absolute position given by a fpos64_t (seekpos). |
f65fd747 UD |
195 | It matches the streambuf::seekpos virtual function. |
196 | It is also used for the ANSI fgetpos and fsetpos functions. */ | |
197 | /* The _IO_seek_cur and _IO_seek_end options are not allowed. */ | |
79937577 | 198 | typedef _IO_off64_t (*_IO_seekpos_t) (_IO_FILE *, _IO_off64_t, int); |
40a55d20 | 199 | #define _IO_SEEKPOS(FP, POS, FLAGS) JUMP2 (__seekpos, FP, POS, FLAGS) |
6e06ae59 | 200 | #define _IO_WSEEKPOS(FP, POS, FLAGS) WJUMP2 (__seekpos, FP, POS, FLAGS) |
f65fd747 UD |
201 | |
202 | /* The 'setbuf' hook gives a buffer to the file. | |
203 | It matches the streambuf::setbuf virtual function. */ | |
79937577 | 204 | typedef _IO_FILE* (*_IO_setbuf_t) (_IO_FILE *, char *, _IO_ssize_t); |
40a55d20 | 205 | #define _IO_SETBUF(FP, BUFFER, LENGTH) JUMP2 (__setbuf, FP, BUFFER, LENGTH) |
6e06ae59 | 206 | #define _IO_WSETBUF(FP, BUFFER, LENGTH) WJUMP2 (__setbuf, FP, BUFFER, LENGTH) |
f65fd747 UD |
207 | |
208 | /* The 'sync' hook attempts to synchronize the internal data structures | |
209 | of the file with the external state. | |
210 | It matches the streambuf::sync virtual function. */ | |
79937577 | 211 | typedef int (*_IO_sync_t) (_IO_FILE *); |
40a55d20 | 212 | #define _IO_SYNC(FP) JUMP0 (__sync, FP) |
6e06ae59 | 213 | #define _IO_WSYNC(FP) WJUMP0 (__sync, FP) |
f65fd747 UD |
214 | |
215 | /* The 'doallocate' hook is used to tell the file to allocate a buffer. | |
216 | It matches the streambuf::doallocate virtual function, which is not | |
217 | in the ANSI/ISO C++ standard, but is part traditional implementations. */ | |
79937577 | 218 | typedef int (*_IO_doallocate_t) (_IO_FILE *); |
40a55d20 | 219 | #define _IO_DOALLOCATE(FP) JUMP0 (__doallocate, FP) |
6e06ae59 | 220 | #define _IO_WDOALLOCATE(FP) WJUMP0 (__doallocate, FP) |
f65fd747 UD |
221 | |
222 | /* The following four hooks (sysread, syswrite, sysclose, sysseek, and | |
223 | sysstat) are low-level hooks specific to this implementation. | |
6d52618b | 224 | There is no correspondence in the ANSI/ISO C++ standard library. |
f65fd747 UD |
225 | The hooks basically correspond to the Unix system functions |
226 | (read, write, close, lseek, and stat) except that a _IO_FILE* | |
c0c3f78a | 227 | parameter is used instead of an integer file descriptor; the default |
f65fd747 UD |
228 | implementation used for normal files just calls those functions. |
229 | The advantage of overriding these functions instead of the higher-level | |
230 | ones (underflow, overflow etc) is that you can leave all the buffering | |
231 | higher-level functions. */ | |
232 | ||
233 | /* The 'sysread' hook is used to read data from the external file into | |
234 | an existing buffer. It generalizes the Unix read(2) function. | |
235 | It matches the streambuf::sys_read virtual function, which is | |
6d52618b | 236 | specific to this implementation. */ |
79937577 | 237 | typedef _IO_ssize_t (*_IO_read_t) (_IO_FILE *, void *, _IO_ssize_t); |
40a55d20 | 238 | #define _IO_SYSREAD(FP, DATA, LEN) JUMP2 (__read, FP, DATA, LEN) |
6e06ae59 | 239 | #define _IO_WSYSREAD(FP, DATA, LEN) WJUMP2 (__read, FP, DATA, LEN) |
f65fd747 UD |
240 | |
241 | /* The 'syswrite' hook is used to write data from an existing buffer | |
242 | to an external file. It generalizes the Unix write(2) function. | |
243 | It matches the streambuf::sys_write virtual function, which is | |
6d52618b | 244 | specific to this implementation. */ |
79937577 | 245 | typedef _IO_ssize_t (*_IO_write_t) (_IO_FILE *, const void *, _IO_ssize_t); |
40a55d20 | 246 | #define _IO_SYSWRITE(FP, DATA, LEN) JUMP2 (__write, FP, DATA, LEN) |
6e06ae59 | 247 | #define _IO_WSYSWRITE(FP, DATA, LEN) WJUMP2 (__write, FP, DATA, LEN) |
f65fd747 UD |
248 | |
249 | /* The 'sysseek' hook is used to re-position an external file. | |
250 | It generalizes the Unix lseek(2) function. | |
251 | It matches the streambuf::sys_seek virtual function, which is | |
6d52618b | 252 | specific to this implementation. */ |
79937577 | 253 | typedef _IO_off64_t (*_IO_seek_t) (_IO_FILE *, _IO_off64_t, int); |
40a55d20 | 254 | #define _IO_SYSSEEK(FP, OFFSET, MODE) JUMP2 (__seek, FP, OFFSET, MODE) |
6e06ae59 | 255 | #define _IO_WSYSSEEK(FP, OFFSET, MODE) WJUMP2 (__seek, FP, OFFSET, MODE) |
f65fd747 UD |
256 | |
257 | /* The 'sysclose' hook is used to finalize (close, finish up) an | |
258 | external file. It generalizes the Unix close(2) function. | |
259 | It matches the streambuf::sys_close virtual function, which is | |
260 | specific to this implementation. */ | |
79937577 | 261 | typedef int (*_IO_close_t) (_IO_FILE *); /* finalize */ |
40a55d20 | 262 | #define _IO_SYSCLOSE(FP) JUMP0 (__close, FP) |
6e06ae59 | 263 | #define _IO_WSYSCLOSE(FP) WJUMP0 (__close, FP) |
f65fd747 UD |
264 | |
265 | /* The 'sysstat' hook is used to get information about an external file | |
266 | into a struct stat buffer. It generalizes the Unix fstat(2) call. | |
267 | It matches the streambuf::sys_stat virtual function, which is | |
6d52618b | 268 | specific to this implementation. */ |
79937577 | 269 | typedef int (*_IO_stat_t) (_IO_FILE *, void *); |
40a55d20 | 270 | #define _IO_SYSSTAT(FP, BUF) JUMP1 (__stat, FP, BUF) |
6e06ae59 | 271 | #define _IO_WSYSSTAT(FP, BUF) WJUMP1 (__stat, FP, BUF) |
96aa2d94 | 272 | |
dfd2257a UD |
273 | /* The 'showmany' hook can be used to get an image how much input is |
274 | available. In many cases the answer will be 0 which means unknown | |
275 | but some cases one can provide real information. */ | |
79937577 | 276 | typedef int (*_IO_showmanyc_t) (_IO_FILE *); |
dfd2257a | 277 | #define _IO_SHOWMANYC(FP) JUMP0 (__showmanyc, FP) |
6e06ae59 | 278 | #define _IO_WSHOWMANYC(FP) WJUMP0 (__showmanyc, FP) |
dfd2257a UD |
279 | |
280 | /* The 'imbue' hook is used to get information about the currently | |
281 | installed locales. */ | |
79937577 | 282 | typedef void (*_IO_imbue_t) (_IO_FILE *, void *); |
dfd2257a | 283 | #define _IO_IMBUE(FP, LOCALE) JUMP1 (__imbue, FP, LOCALE) |
6e06ae59 | 284 | #define _IO_WIMBUE(FP, LOCALE) WJUMP1 (__imbue, FP, LOCALE) |
dfd2257a | 285 | |
f65fd747 | 286 | |
96aa2d94 RM |
287 | #define _IO_CHAR_TYPE char /* unsigned char ? */ |
288 | #define _IO_INT_TYPE int | |
289 | ||
40a55d20 UD |
290 | struct _IO_jump_t |
291 | { | |
203e5603 JM |
292 | JUMP_FIELD(size_t, __dummy); |
293 | JUMP_FIELD(size_t, __dummy2); | |
96aa2d94 RM |
294 | JUMP_FIELD(_IO_finish_t, __finish); |
295 | JUMP_FIELD(_IO_overflow_t, __overflow); | |
296 | JUMP_FIELD(_IO_underflow_t, __underflow); | |
297 | JUMP_FIELD(_IO_underflow_t, __uflow); | |
298 | JUMP_FIELD(_IO_pbackfail_t, __pbackfail); | |
299 | /* showmany */ | |
300 | JUMP_FIELD(_IO_xsputn_t, __xsputn); | |
301 | JUMP_FIELD(_IO_xsgetn_t, __xsgetn); | |
302 | JUMP_FIELD(_IO_seekoff_t, __seekoff); | |
303 | JUMP_FIELD(_IO_seekpos_t, __seekpos); | |
304 | JUMP_FIELD(_IO_setbuf_t, __setbuf); | |
305 | JUMP_FIELD(_IO_sync_t, __sync); | |
306 | JUMP_FIELD(_IO_doallocate_t, __doallocate); | |
307 | JUMP_FIELD(_IO_read_t, __read); | |
308 | JUMP_FIELD(_IO_write_t, __write); | |
309 | JUMP_FIELD(_IO_seek_t, __seek); | |
310 | JUMP_FIELD(_IO_close_t, __close); | |
311 | JUMP_FIELD(_IO_stat_t, __stat); | |
dfd2257a UD |
312 | JUMP_FIELD(_IO_showmanyc_t, __showmanyc); |
313 | JUMP_FIELD(_IO_imbue_t, __imbue); | |
96aa2d94 RM |
314 | #if 0 |
315 | get_column; | |
316 | set_column; | |
317 | #endif | |
318 | }; | |
319 | ||
320 | /* We always allocate an extra word following an _IO_FILE. | |
f65fd747 | 321 | This contains a pointer to the function jump table used. |
96aa2d94 RM |
322 | This is for compatibility with C++ streambuf; the word can |
323 | be used to smash to a pointer to a virtual function table. */ | |
324 | ||
40a55d20 UD |
325 | struct _IO_FILE_plus |
326 | { | |
96aa2d94 | 327 | _IO_FILE file; |
96aa2d94 | 328 | const struct _IO_jump_t *vtable; |
96aa2d94 RM |
329 | }; |
330 | ||
7ea11363 UD |
331 | #ifdef _IO_USE_OLD_IO_FILE |
332 | /* This structure is used by the compatibility code as if it were an | |
333 | _IO_FILE_plus, but has enough space to initialize the _mode argument | |
334 | of an _IO_FILE_complete. */ | |
335 | struct _IO_FILE_complete_plus | |
336 | { | |
337 | struct _IO_FILE_complete file; | |
338 | const struct _IO_jump_t *vtable; | |
339 | }; | |
340 | #endif | |
341 | ||
2ca8b1ee GM |
342 | /* Special file type for fopencookie function. */ |
343 | struct _IO_cookie_file | |
344 | { | |
345 | struct _IO_FILE_plus __fp; | |
346 | void *__cookie; | |
347 | _IO_cookie_io_functions_t __io_functions; | |
348 | }; | |
349 | ||
c9fc9559 RM |
350 | _IO_FILE *_IO_fopencookie (void *cookie, const char *mode, |
351 | _IO_cookie_io_functions_t io_functions); | |
352 | ||
353 | ||
3fc9ca4e UD |
354 | /* Iterator type for walking global linked list of _IO_FILE objects. */ |
355 | ||
73c115ed | 356 | typedef struct _IO_FILE *_IO_ITER; |
3fc9ca4e | 357 | |
96aa2d94 RM |
358 | /* Generic functions */ |
359 | ||
79937577 UD |
360 | extern void _IO_switch_to_main_get_area (_IO_FILE *) __THROW; |
361 | extern void _IO_switch_to_backup_area (_IO_FILE *) __THROW; | |
0fca3153 | 362 | extern int _IO_switch_to_get_mode (_IO_FILE *); |
d18ea0c5 | 363 | libc_hidden_proto (_IO_switch_to_get_mode) |
79937577 | 364 | extern void _IO_init (_IO_FILE *, int) __THROW; |
d18ea0c5 | 365 | libc_hidden_proto (_IO_init) |
79937577 | 366 | extern int _IO_sputbackc (_IO_FILE *, int) __THROW; |
d18ea0c5 | 367 | libc_hidden_proto (_IO_sputbackc) |
79937577 UD |
368 | extern int _IO_sungetc (_IO_FILE *) __THROW; |
369 | extern void _IO_un_link (struct _IO_FILE_plus *) __THROW; | |
d18ea0c5 | 370 | libc_hidden_proto (_IO_un_link) |
79937577 | 371 | extern void _IO_link_in (struct _IO_FILE_plus *) __THROW; |
d18ea0c5 | 372 | libc_hidden_proto (_IO_link_in) |
79937577 | 373 | extern void _IO_doallocbuf (_IO_FILE *) __THROW; |
d18ea0c5 | 374 | libc_hidden_proto (_IO_doallocbuf) |
79937577 | 375 | extern void _IO_unsave_markers (_IO_FILE *) __THROW; |
d18ea0c5 | 376 | libc_hidden_proto (_IO_unsave_markers) |
79937577 | 377 | extern void _IO_setb (_IO_FILE *, char *, char *, int) __THROW; |
d18ea0c5 | 378 | libc_hidden_proto (_IO_setb) |
79937577 | 379 | extern unsigned _IO_adjust_column (unsigned, const char *, int) __THROW; |
d18ea0c5 | 380 | libc_hidden_proto (_IO_adjust_column) |
40a55d20 | 381 | #define _IO_sputn(__fp, __s, __n) _IO_XSPUTN (__fp, __s, __n) |
96aa2d94 | 382 | |
d18ea0c5 AS |
383 | _IO_ssize_t _IO_least_wmarker (_IO_FILE *, wchar_t *) __THROW; |
384 | libc_hidden_proto (_IO_least_wmarker) | |
79937577 | 385 | extern void _IO_switch_to_main_wget_area (_IO_FILE *) __THROW; |
d18ea0c5 | 386 | libc_hidden_proto (_IO_switch_to_main_wget_area) |
79937577 | 387 | extern void _IO_switch_to_wbackup_area (_IO_FILE *) __THROW; |
d18ea0c5 | 388 | libc_hidden_proto (_IO_switch_to_wbackup_area) |
0fca3153 | 389 | extern int _IO_switch_to_wget_mode (_IO_FILE *); |
d18ea0c5 | 390 | libc_hidden_proto (_IO_switch_to_wget_mode) |
79937577 | 391 | extern void _IO_wsetb (_IO_FILE *, wchar_t *, wchar_t *, int) __THROW; |
d18ea0c5 | 392 | libc_hidden_proto (_IO_wsetb) |
79937577 | 393 | extern wint_t _IO_sputbackwc (_IO_FILE *, wint_t) __THROW; |
d18ea0c5 | 394 | libc_hidden_proto (_IO_sputbackwc) |
79937577 UD |
395 | extern wint_t _IO_sungetwc (_IO_FILE *) __THROW; |
396 | extern void _IO_wdoallocbuf (_IO_FILE *) __THROW; | |
d18ea0c5 | 397 | libc_hidden_proto (_IO_wdoallocbuf) |
79937577 UD |
398 | extern void _IO_unsave_wmarkers (_IO_FILE *) __THROW; |
399 | extern unsigned _IO_adjust_wcolumn (unsigned, const wchar_t *, int) __THROW; | |
d64b6ad0 | 400 | |
96aa2d94 RM |
401 | /* Marker-related function. */ |
402 | ||
0fca3153 UD |
403 | extern void _IO_init_marker (struct _IO_marker *, _IO_FILE *); |
404 | extern void _IO_init_wmarker (struct _IO_marker *, _IO_FILE *); | |
79937577 UD |
405 | extern void _IO_remove_marker (struct _IO_marker *) __THROW; |
406 | extern int _IO_marker_difference (struct _IO_marker *, struct _IO_marker *) | |
407 | __THROW; | |
408 | extern int _IO_marker_delta (struct _IO_marker *) __THROW; | |
409 | extern int _IO_wmarker_delta (struct _IO_marker *) __THROW; | |
410 | extern int _IO_seekmark (_IO_FILE *, struct _IO_marker *, int) __THROW; | |
411 | extern int _IO_seekwmark (_IO_FILE *, struct _IO_marker *, int) __THROW; | |
96aa2d94 | 412 | |
79937577 | 413 | /* Functions for iterating global list and dealing with its lock */ |
3fc9ca4e | 414 | |
79937577 | 415 | extern _IO_ITER _IO_iter_begin (void) __THROW; |
1d2b6e0c | 416 | libc_hidden_proto (_IO_iter_begin) |
79937577 | 417 | extern _IO_ITER _IO_iter_end (void) __THROW; |
1d2b6e0c | 418 | libc_hidden_proto (_IO_iter_end) |
79937577 | 419 | extern _IO_ITER _IO_iter_next (_IO_ITER) __THROW; |
1d2b6e0c | 420 | libc_hidden_proto (_IO_iter_next) |
79937577 | 421 | extern _IO_FILE *_IO_iter_file (_IO_ITER) __THROW; |
1d2b6e0c | 422 | libc_hidden_proto (_IO_iter_file) |
79937577 | 423 | extern void _IO_list_lock (void) __THROW; |
245eab02 | 424 | libc_hidden_proto (_IO_list_lock) |
79937577 | 425 | extern void _IO_list_unlock (void) __THROW; |
245eab02 | 426 | libc_hidden_proto (_IO_list_unlock) |
79937577 | 427 | extern void _IO_list_resetlock (void) __THROW; |
245eab02 | 428 | libc_hidden_proto (_IO_list_resetlock) |
3fc9ca4e | 429 | |
96aa2d94 RM |
430 | /* Default jumptable functions. */ |
431 | ||
79937577 | 432 | extern int _IO_default_underflow (_IO_FILE *) __THROW; |
0fca3153 | 433 | extern int _IO_default_uflow (_IO_FILE *); |
d18ea0c5 | 434 | libc_hidden_proto (_IO_default_uflow) |
0fca3153 | 435 | extern wint_t _IO_wdefault_uflow (_IO_FILE *); |
d18ea0c5 | 436 | libc_hidden_proto (_IO_wdefault_uflow) |
79937577 | 437 | extern int _IO_default_doallocate (_IO_FILE *) __THROW; |
d18ea0c5 | 438 | libc_hidden_proto (_IO_default_doallocate) |
79937577 | 439 | extern int _IO_wdefault_doallocate (_IO_FILE *) __THROW; |
d18ea0c5 | 440 | libc_hidden_proto (_IO_wdefault_doallocate) |
79937577 | 441 | extern void _IO_default_finish (_IO_FILE *, int) __THROW; |
d18ea0c5 | 442 | libc_hidden_proto (_IO_default_finish) |
79937577 | 443 | extern void _IO_wdefault_finish (_IO_FILE *, int) __THROW; |
d18ea0c5 | 444 | libc_hidden_proto (_IO_wdefault_finish) |
79937577 | 445 | extern int _IO_default_pbackfail (_IO_FILE *, int) __THROW; |
d18ea0c5 | 446 | libc_hidden_proto (_IO_default_pbackfail) |
79937577 | 447 | extern wint_t _IO_wdefault_pbackfail (_IO_FILE *, wint_t) __THROW; |
d18ea0c5 | 448 | libc_hidden_proto (_IO_wdefault_pbackfail) |
0fca3153 | 449 | extern _IO_FILE* _IO_default_setbuf (_IO_FILE *, char *, _IO_ssize_t); |
102070bc | 450 | extern _IO_size_t _IO_default_xsputn (_IO_FILE *, const void *, _IO_size_t); |
d18ea0c5 | 451 | libc_hidden_proto (_IO_default_xsputn) |
102070bc | 452 | extern _IO_size_t _IO_wdefault_xsputn (_IO_FILE *, const void *, _IO_size_t); |
d18ea0c5 | 453 | libc_hidden_proto (_IO_wdefault_xsputn) |
102070bc | 454 | extern _IO_size_t _IO_default_xsgetn (_IO_FILE *, void *, _IO_size_t); |
d18ea0c5 | 455 | libc_hidden_proto (_IO_default_xsgetn) |
102070bc | 456 | extern _IO_size_t _IO_wdefault_xsgetn (_IO_FILE *, void *, _IO_size_t); |
d18ea0c5 | 457 | libc_hidden_proto (_IO_wdefault_xsgetn) |
79937577 UD |
458 | extern _IO_off64_t _IO_default_seekoff (_IO_FILE *, _IO_off64_t, int, int) |
459 | __THROW; | |
0fca3153 | 460 | extern _IO_off64_t _IO_default_seekpos (_IO_FILE *, _IO_off64_t, int); |
102070bc UD |
461 | extern _IO_ssize_t _IO_default_write (_IO_FILE *, const void *, _IO_ssize_t); |
462 | extern _IO_ssize_t _IO_default_read (_IO_FILE *, void *, _IO_ssize_t); | |
79937577 UD |
463 | extern int _IO_default_stat (_IO_FILE *, void *) __THROW; |
464 | extern _IO_off64_t _IO_default_seek (_IO_FILE *, _IO_off64_t, int) __THROW; | |
465 | extern int _IO_default_sync (_IO_FILE *) __THROW; | |
40a55d20 | 466 | #define _IO_default_close ((_IO_close_t) _IO_default_sync) |
79937577 UD |
467 | extern int _IO_default_showmanyc (_IO_FILE *) __THROW; |
468 | extern void _IO_default_imbue (_IO_FILE *, void *) __THROW; | |
96aa2d94 | 469 | |
b2637a22 | 470 | extern const struct _IO_jump_t _IO_file_jumps; |
15a686af | 471 | libc_hidden_proto (_IO_file_jumps) |
b2637a22 UD |
472 | extern const struct _IO_jump_t _IO_file_jumps_mmap attribute_hidden; |
473 | extern const struct _IO_jump_t _IO_file_jumps_maybe_mmap attribute_hidden; | |
474 | extern const struct _IO_jump_t _IO_wfile_jumps; | |
15a686af | 475 | libc_hidden_proto (_IO_wfile_jumps) |
b2637a22 UD |
476 | extern const struct _IO_jump_t _IO_wfile_jumps_mmap attribute_hidden; |
477 | extern const struct _IO_jump_t _IO_wfile_jumps_maybe_mmap attribute_hidden; | |
478 | extern const struct _IO_jump_t _IO_old_file_jumps attribute_hidden; | |
479 | extern const struct _IO_jump_t _IO_streambuf_jumps; | |
480 | extern const struct _IO_jump_t _IO_old_proc_jumps attribute_hidden; | |
481 | extern const struct _IO_jump_t _IO_str_jumps attribute_hidden; | |
482 | extern const struct _IO_jump_t _IO_wstr_jumps attribute_hidden; | |
97d261ad | 483 | extern const struct _IO_codecvt __libio_codecvt attribute_hidden; |
0fca3153 | 484 | extern int _IO_do_write (_IO_FILE *, const char *, _IO_size_t); |
d18ea0c5 | 485 | libc_hidden_proto (_IO_do_write) |
0fca3153 UD |
486 | extern int _IO_new_do_write (_IO_FILE *, const char *, _IO_size_t); |
487 | extern int _IO_old_do_write (_IO_FILE *, const char *, _IO_size_t); | |
488 | extern int _IO_wdo_write (_IO_FILE *, const wchar_t *, _IO_size_t); | |
d18ea0c5 | 489 | libc_hidden_proto (_IO_wdo_write) |
0fca3153 UD |
490 | extern int _IO_flush_all_lockp (int); |
491 | extern int _IO_flush_all (void); | |
d18ea0c5 | 492 | libc_hidden_proto (_IO_flush_all) |
0fca3153 UD |
493 | extern int _IO_cleanup (void); |
494 | extern void _IO_flush_all_linebuffered (void); | |
d18ea0c5 | 495 | libc_hidden_proto (_IO_flush_all_linebuffered) |
0fca3153 UD |
496 | extern int _IO_new_fgetpos (_IO_FILE *, _IO_fpos_t *); |
497 | extern int _IO_old_fgetpos (_IO_FILE *, _IO_fpos_t *); | |
498 | extern int _IO_new_fsetpos (_IO_FILE *, const _IO_fpos_t *); | |
499 | extern int _IO_old_fsetpos (_IO_FILE *, const _IO_fpos_t *); | |
500 | extern int _IO_new_fgetpos64 (_IO_FILE *, _IO_fpos64_t *); | |
501 | extern int _IO_old_fgetpos64 (_IO_FILE *, _IO_fpos64_t *); | |
502 | extern int _IO_new_fsetpos64 (_IO_FILE *, const _IO_fpos64_t *); | |
503 | extern int _IO_old_fsetpos64 (_IO_FILE *, const _IO_fpos64_t *); | |
79937577 | 504 | extern void _IO_old_init (_IO_FILE *fp, int flags) __THROW; |
d64b6ad0 | 505 | |
96aa2d94 | 506 | |
319d719d UD |
507 | #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T |
508 | # define _IO_do_flush(_f) \ | |
d64b6ad0 | 509 | ((_f)->_mode <= 0 \ |
d18ea0c5 AS |
510 | ? _IO_do_write(_f, (_f)->_IO_write_base, \ |
511 | (_f)->_IO_write_ptr-(_f)->_IO_write_base) \ | |
512 | : _IO_wdo_write(_f, (_f)->_wide_data->_IO_write_base, \ | |
513 | ((_f)->_wide_data->_IO_write_ptr \ | |
514 | - (_f)->_wide_data->_IO_write_base))) | |
319d719d UD |
515 | #else |
516 | # define _IO_do_flush(_f) \ | |
d18ea0c5 AS |
517 | _IO_do_write(_f, (_f)->_IO_write_base, \ |
518 | (_f)->_IO_write_ptr-(_f)->_IO_write_base) | |
319d719d | 519 | #endif |
6973fc01 UD |
520 | #define _IO_old_do_flush(_f) \ |
521 | _IO_old_do_write(_f, (_f)->_IO_write_base, \ | |
522 | (_f)->_IO_write_ptr-(_f)->_IO_write_base) | |
96aa2d94 RM |
523 | #define _IO_in_put_mode(_fp) ((_fp)->_flags & _IO_CURRENTLY_PUTTING) |
524 | #define _IO_mask_flags(fp, f, mask) \ | |
525 | ((fp)->_flags = ((fp)->_flags & ~(mask)) | ((f) & (mask))) | |
526 | #define _IO_setg(fp, eb, g, eg) ((fp)->_IO_read_base = (eb),\ | |
527 | (fp)->_IO_read_ptr = (g), (fp)->_IO_read_end = (eg)) | |
d64b6ad0 UD |
528 | #define _IO_wsetg(fp, eb, g, eg) ((fp)->_wide_data->_IO_read_base = (eb),\ |
529 | (fp)->_wide_data->_IO_read_ptr = (g), \ | |
530 | (fp)->_wide_data->_IO_read_end = (eg)) | |
96aa2d94 | 531 | #define _IO_setp(__fp, __p, __ep) \ |
d64b6ad0 UD |
532 | ((__fp)->_IO_write_base = (__fp)->_IO_write_ptr \ |
533 | = __p, (__fp)->_IO_write_end = (__ep)) | |
534 | #define _IO_wsetp(__fp, __p, __ep) \ | |
535 | ((__fp)->_wide_data->_IO_write_base \ | |
536 | = (__fp)->_wide_data->_IO_write_ptr = __p, \ | |
537 | (__fp)->_wide_data->_IO_write_end = (__ep)) | |
96aa2d94 | 538 | #define _IO_have_backup(fp) ((fp)->_IO_save_base != NULL) |
d64b6ad0 | 539 | #define _IO_have_wbackup(fp) ((fp)->_wide_data->_IO_save_base != NULL) |
96aa2d94 RM |
540 | #define _IO_in_backup(fp) ((fp)->_flags & _IO_IN_BACKUP) |
541 | #define _IO_have_markers(fp) ((fp)->_markers != NULL) | |
f65fd747 | 542 | #define _IO_blen(fp) ((fp)->_IO_buf_end - (fp)->_IO_buf_base) |
d64b6ad0 UD |
543 | #define _IO_wblen(fp) ((fp)->_wide_data->_IO_buf_end \ |
544 | - (fp)->_wide_data->_IO_buf_base) | |
96aa2d94 RM |
545 | |
546 | /* Jumptable functions for files. */ | |
547 | ||
79937577 | 548 | extern int _IO_file_doallocate (_IO_FILE *) __THROW; |
d18ea0c5 | 549 | libc_hidden_proto (_IO_file_doallocate) |
0fca3153 | 550 | extern _IO_FILE* _IO_file_setbuf (_IO_FILE *, char *, _IO_ssize_t); |
d18ea0c5 | 551 | libc_hidden_proto (_IO_file_setbuf) |
0fca3153 | 552 | extern _IO_off64_t _IO_file_seekoff (_IO_FILE *, _IO_off64_t, int, int); |
d18ea0c5 | 553 | libc_hidden_proto (_IO_file_seekoff) |
79937577 UD |
554 | extern _IO_off64_t _IO_file_seekoff_mmap (_IO_FILE *, _IO_off64_t, int, int) |
555 | __THROW; | |
0fca3153 | 556 | extern _IO_size_t _IO_file_xsputn (_IO_FILE *, const void *, _IO_size_t); |
d18ea0c5 | 557 | libc_hidden_proto (_IO_file_xsputn) |
0fca3153 | 558 | extern _IO_size_t _IO_file_xsgetn (_IO_FILE *, void *, _IO_size_t); |
d18ea0c5 | 559 | libc_hidden_proto (_IO_file_xsgetn) |
79937577 | 560 | extern int _IO_file_stat (_IO_FILE *, void *) __THROW; |
d18ea0c5 | 561 | libc_hidden_proto (_IO_file_stat) |
79937577 | 562 | extern int _IO_file_close (_IO_FILE *) __THROW; |
d18ea0c5 | 563 | libc_hidden_proto (_IO_file_close) |
79937577 | 564 | extern int _IO_file_close_mmap (_IO_FILE *) __THROW; |
0fca3153 | 565 | extern int _IO_file_underflow (_IO_FILE *); |
d18ea0c5 | 566 | libc_hidden_proto (_IO_file_underflow) |
0fca3153 UD |
567 | extern int _IO_file_underflow_mmap (_IO_FILE *); |
568 | extern int _IO_file_underflow_maybe_mmap (_IO_FILE *); | |
569 | extern int _IO_file_overflow (_IO_FILE *, int); | |
d18ea0c5 | 570 | libc_hidden_proto (_IO_file_overflow) |
110215a9 | 571 | #define _IO_file_is_open(__fp) ((__fp)->_fileno != -1) |
79937577 | 572 | extern void _IO_file_init (struct _IO_FILE_plus *) __THROW; |
d18ea0c5 | 573 | libc_hidden_proto (_IO_file_init) |
0fca3153 | 574 | extern _IO_FILE* _IO_file_attach (_IO_FILE *, int); |
d18ea0c5 | 575 | libc_hidden_proto (_IO_file_attach) |
0fca3153 | 576 | extern _IO_FILE* _IO_file_open (_IO_FILE *, const char *, int, int, int, int); |
ee2a5ae8 | 577 | libc_hidden_proto (_IO_file_open) |
0fca3153 | 578 | extern _IO_FILE* _IO_file_fopen (_IO_FILE *, const char *, const char *, int); |
d18ea0c5 | 579 | libc_hidden_proto (_IO_file_fopen) |
0fca3153 UD |
580 | extern _IO_ssize_t _IO_file_write (_IO_FILE *, const void *, _IO_ssize_t); |
581 | extern _IO_ssize_t _IO_file_read (_IO_FILE *, void *, _IO_ssize_t); | |
d18ea0c5 | 582 | libc_hidden_proto (_IO_file_read) |
0fca3153 | 583 | extern int _IO_file_sync (_IO_FILE *); |
d18ea0c5 | 584 | libc_hidden_proto (_IO_file_sync) |
0fca3153 | 585 | extern int _IO_file_close_it (_IO_FILE *); |
d18ea0c5 | 586 | libc_hidden_proto (_IO_file_close_it) |
79937577 | 587 | extern _IO_off64_t _IO_file_seek (_IO_FILE *, _IO_off64_t, int) __THROW; |
d18ea0c5 | 588 | libc_hidden_proto (_IO_file_seek) |
0fca3153 | 589 | extern void _IO_file_finish (_IO_FILE *, int); |
d18ea0c5 | 590 | libc_hidden_proto (_IO_file_finish) |
79937577 | 591 | |
0fca3153 UD |
592 | extern _IO_FILE* _IO_new_file_attach (_IO_FILE *, int); |
593 | extern int _IO_new_file_close_it (_IO_FILE *); | |
594 | extern void _IO_new_file_finish (_IO_FILE *, int); | |
79937577 | 595 | extern _IO_FILE* _IO_new_file_fopen (_IO_FILE *, const char *, const char *, |
0fca3153 | 596 | int); |
79937577 UD |
597 | extern void _IO_no_init (_IO_FILE *, int, int, struct _IO_wide_data *, |
598 | const struct _IO_jump_t *) __THROW; | |
599 | extern void _IO_new_file_init (struct _IO_FILE_plus *) __THROW; | |
0fca3153 UD |
600 | extern _IO_FILE* _IO_new_file_setbuf (_IO_FILE *, char *, _IO_ssize_t); |
601 | extern _IO_FILE* _IO_file_setbuf_mmap (_IO_FILE *, char *, _IO_ssize_t); | |
602 | extern int _IO_new_file_sync (_IO_FILE *); | |
603 | extern int _IO_new_file_underflow (_IO_FILE *); | |
604 | extern int _IO_new_file_overflow (_IO_FILE *, int); | |
605 | extern _IO_off64_t _IO_new_file_seekoff (_IO_FILE *, _IO_off64_t, int, int); | |
606 | extern _IO_ssize_t _IO_new_file_write (_IO_FILE *, const void *, _IO_ssize_t); | |
607 | extern _IO_size_t _IO_new_file_xsputn (_IO_FILE *, const void *, _IO_size_t); | |
608 | ||
609 | extern _IO_FILE* _IO_old_file_setbuf (_IO_FILE *, char *, _IO_ssize_t); | |
610 | extern _IO_off64_t _IO_old_file_seekoff (_IO_FILE *, _IO_off64_t, int, int); | |
611 | extern _IO_size_t _IO_old_file_xsputn (_IO_FILE *, const void *, _IO_size_t); | |
612 | extern int _IO_old_file_underflow (_IO_FILE *); | |
613 | extern int _IO_old_file_overflow (_IO_FILE *, int); | |
79937577 | 614 | extern void _IO_old_file_init (struct _IO_FILE_plus *) __THROW; |
0fca3153 UD |
615 | extern _IO_FILE* _IO_old_file_attach (_IO_FILE *, int); |
616 | extern _IO_FILE* _IO_old_file_fopen (_IO_FILE *, const char *, const char *); | |
617 | extern _IO_ssize_t _IO_old_file_write (_IO_FILE *, const void *, _IO_ssize_t); | |
618 | extern int _IO_old_file_sync (_IO_FILE *); | |
619 | extern int _IO_old_file_close_it (_IO_FILE *); | |
620 | extern void _IO_old_file_finish (_IO_FILE *, int); | |
79937577 UD |
621 | |
622 | extern int _IO_wfile_doallocate (_IO_FILE *) __THROW; | |
0fca3153 | 623 | extern _IO_size_t _IO_wfile_xsputn (_IO_FILE *, const void *, _IO_size_t); |
d18ea0c5 | 624 | libc_hidden_proto (_IO_wfile_xsputn) |
0fca3153 UD |
625 | extern _IO_FILE* _IO_wfile_setbuf (_IO_FILE *, wchar_t *, _IO_ssize_t); |
626 | extern wint_t _IO_wfile_sync (_IO_FILE *); | |
d18ea0c5 | 627 | libc_hidden_proto (_IO_wfile_sync) |
0fca3153 | 628 | extern wint_t _IO_wfile_underflow (_IO_FILE *); |
d18ea0c5 | 629 | libc_hidden_proto (_IO_wfile_underflow) |
0fca3153 | 630 | extern wint_t _IO_wfile_overflow (_IO_FILE *, wint_t); |
d18ea0c5 | 631 | libc_hidden_proto (_IO_wfile_overflow) |
0fca3153 | 632 | extern _IO_off64_t _IO_wfile_seekoff (_IO_FILE *, _IO_off64_t, int, int); |
d18ea0c5 | 633 | libc_hidden_proto (_IO_wfile_seekoff) |
d64b6ad0 | 634 | |
96aa2d94 | 635 | /* Jumptable functions for proc_files. */ |
79937577 UD |
636 | extern _IO_FILE* _IO_proc_open (_IO_FILE *, const char *, const char *) |
637 | __THROW; | |
638 | extern _IO_FILE* _IO_new_proc_open (_IO_FILE *, const char *, const char *) | |
639 | __THROW; | |
0fca3153 | 640 | extern _IO_FILE* _IO_old_proc_open (_IO_FILE *, const char *, const char *); |
79937577 UD |
641 | extern int _IO_proc_close (_IO_FILE *) __THROW; |
642 | extern int _IO_new_proc_close (_IO_FILE *) __THROW; | |
0fca3153 | 643 | extern int _IO_old_proc_close (_IO_FILE *); |
96aa2d94 RM |
644 | |
645 | /* Jumptable functions for strfiles. */ | |
79937577 | 646 | extern int _IO_str_underflow (_IO_FILE *) __THROW; |
d18ea0c5 | 647 | libc_hidden_proto (_IO_str_underflow) |
79937577 | 648 | extern int _IO_str_overflow (_IO_FILE *, int) __THROW; |
d18ea0c5 | 649 | libc_hidden_proto (_IO_str_overflow) |
79937577 | 650 | extern int _IO_str_pbackfail (_IO_FILE *, int) __THROW; |
d18ea0c5 | 651 | libc_hidden_proto (_IO_str_pbackfail) |
79937577 | 652 | extern _IO_off64_t _IO_str_seekoff (_IO_FILE *, _IO_off64_t, int, int) __THROW; |
d18ea0c5 | 653 | libc_hidden_proto (_IO_str_seekoff) |
79937577 | 654 | extern void _IO_str_finish (_IO_FILE *, int) __THROW; |
96aa2d94 RM |
655 | |
656 | /* Other strfile functions */ | |
2ca8b1ee | 657 | struct _IO_strfile_; |
79937577 UD |
658 | extern void _IO_str_init_static (struct _IO_strfile_ *, char *, int, char *) |
659 | __THROW; | |
660 | extern void _IO_str_init_readonly (struct _IO_strfile_ *, const char *, int) | |
661 | __THROW; | |
662 | extern _IO_ssize_t _IO_str_count (_IO_FILE *) __THROW; | |
96aa2d94 | 663 | |
d64b6ad0 | 664 | /* And the wide character versions. */ |
79937577 UD |
665 | extern void _IO_wstr_init_static (_IO_FILE *, wchar_t *, _IO_size_t, wchar_t *) |
666 | __THROW; | |
667 | extern _IO_ssize_t _IO_wstr_count (_IO_FILE *) __THROW; | |
668 | extern _IO_wint_t _IO_wstr_overflow (_IO_FILE *, _IO_wint_t) __THROW; | |
669 | extern _IO_wint_t _IO_wstr_underflow (_IO_FILE *) __THROW; | |
670 | extern _IO_off64_t _IO_wstr_seekoff (_IO_FILE *, _IO_off64_t, int, int) | |
671 | __THROW; | |
672 | extern _IO_wint_t _IO_wstr_pbackfail (_IO_FILE *, _IO_wint_t) __THROW; | |
673 | extern void _IO_wstr_finish (_IO_FILE *, int) __THROW; | |
674 | ||
a784e502 | 675 | extern int _IO_vasprintf (char **result_ptr, const char *format, |
79937577 | 676 | _IO_va_list args) __THROW; |
a784e502 | 677 | extern int _IO_vdprintf (int d, const char *format, _IO_va_list arg); |
79937577 | 678 | extern int _IO_vsnprintf (char *string, _IO_size_t maxlen, |
a784e502 | 679 | const char *format, _IO_va_list args) __THROW; |
79937577 UD |
680 | |
681 | ||
102070bc | 682 | extern _IO_size_t _IO_getline (_IO_FILE *,char *, _IO_size_t, int, int); |
d18ea0c5 | 683 | libc_hidden_proto (_IO_getline) |
79937577 | 684 | extern _IO_size_t _IO_getline_info (_IO_FILE *,char *, _IO_size_t, |
102070bc | 685 | int, int, int *); |
d18ea0c5 | 686 | libc_hidden_proto (_IO_getline_info) |
0fca3153 | 687 | extern _IO_ssize_t _IO_getdelim (char **, _IO_size_t *, int, _IO_FILE *); |
102070bc | 688 | extern _IO_size_t _IO_getwline (_IO_FILE *,wchar_t *, _IO_size_t, wint_t, int); |
79937577 | 689 | extern _IO_size_t _IO_getwline_info (_IO_FILE *,wchar_t *, _IO_size_t, |
102070bc | 690 | wint_t, int, wint_t *); |
96aa2d94 | 691 | |
2ca8b1ee | 692 | extern struct _IO_FILE_plus *_IO_list_all; |
d18ea0c5 | 693 | libc_hidden_proto (_IO_list_all) |
79937577 | 694 | extern void (*_IO_cleanup_registration_needed) (void); |
96aa2d94 | 695 | |
79937577 UD |
696 | extern void _IO_str_init_static_internal (struct _IO_strfile_ *, char *, |
697 | _IO_size_t, char *) __THROW; | |
52a16e58 | 698 | extern _IO_off64_t _IO_seekoff_unlocked (_IO_FILE *, _IO_off64_t, int, int) |
0fca3153 | 699 | attribute_hidden; |
52a16e58 | 700 | extern _IO_off64_t _IO_seekpos_unlocked (_IO_FILE *, _IO_off64_t, int) |
0fca3153 | 701 | attribute_hidden; |
77fe0b9c | 702 | |
96aa2d94 | 703 | #ifndef EOF |
40a55d20 | 704 | # define EOF (-1) |
96aa2d94 RM |
705 | #endif |
706 | #ifndef NULL | |
40a55d20 | 707 | # if defined __GNUG__ && \ |
f8b87ef0 | 708 | (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8)) |
40a55d20 UD |
709 | # define NULL (__null) |
710 | # else | |
711 | # if !defined(__cplusplus) | |
712 | # define NULL ((void*)0) | |
713 | # else | |
714 | # define NULL (0) | |
715 | # endif | |
716 | # endif | |
f65fd747 | 717 | #endif |
96aa2d94 | 718 | |
f8b87ef0 UD |
719 | #if _G_HAVE_MMAP |
720 | ||
40a55d20 UD |
721 | # include <unistd.h> |
722 | # include <fcntl.h> | |
723 | # include <sys/mman.h> | |
724 | # include <sys/param.h> | |
f8b87ef0 | 725 | |
40a55d20 UD |
726 | # if !defined(MAP_ANONYMOUS) && defined(MAP_ANON) |
727 | # define MAP_ANONYMOUS MAP_ANON | |
728 | # endif | |
f8b87ef0 | 729 | |
40a55d20 UD |
730 | # if !defined(MAP_ANONYMOUS) || !defined(EXEC_PAGESIZE) |
731 | # undef _G_HAVE_MMAP | |
732 | # define _G_HAVE_MMAP 0 | |
733 | # endif | |
f8b87ef0 UD |
734 | |
735 | #endif /* _G_HAVE_MMAP */ | |
736 | ||
737 | #if _G_HAVE_MMAP | |
738 | ||
40a55d20 | 739 | # ifdef _LIBC |
10dc2a90 | 740 | /* When using this code in the GNU libc we must not pollute the name space. */ |
40a55d20 UD |
741 | # define mmap __mmap |
742 | # define munmap __munmap | |
dfd2257a | 743 | # define ftruncate __ftruncate |
40a55d20 | 744 | # endif |
10dc2a90 | 745 | |
40a55d20 | 746 | # define ROUND_TO_PAGE(_S) \ |
f8b87ef0 UD |
747 | (((_S) + EXEC_PAGESIZE - 1) & ~(EXEC_PAGESIZE - 1)) |
748 | ||
40a55d20 | 749 | # define FREE_BUF(_B, _S) \ |
f8b87ef0 | 750 | munmap ((_B), ROUND_TO_PAGE (_S)) |
40a55d20 | 751 | # define ALLOC_BUF(_B, _S, _R) \ |
f8b87ef0 UD |
752 | do { \ |
753 | (_B) = (char *) mmap (0, ROUND_TO_PAGE (_S), \ | |
754 | PROT_READ | PROT_WRITE, \ | |
755 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \ | |
d64b6ad0 UD |
756 | if ((_B) == (char *) MAP_FAILED) \ |
757 | return (_R); \ | |
758 | } while (0) | |
759 | # define ALLOC_WBUF(_B, _S, _R) \ | |
760 | do { \ | |
761 | (_B) = (wchar_t *) mmap (0, ROUND_TO_PAGE (_S), \ | |
762 | PROT_READ | PROT_WRITE, \ | |
763 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \ | |
764 | if ((_B) == (wchar_t *) MAP_FAILED) \ | |
f8b87ef0 UD |
765 | return (_R); \ |
766 | } while (0) | |
767 | ||
768 | #else /* _G_HAVE_MMAP */ | |
769 | ||
40a55d20 | 770 | # define FREE_BUF(_B, _S) \ |
f8b87ef0 | 771 | free(_B) |
40a55d20 | 772 | # define ALLOC_BUF(_B, _S, _R) \ |
f8b87ef0 UD |
773 | do { \ |
774 | (_B) = (char*)malloc(_S); \ | |
775 | if ((_B) == NULL) \ | |
776 | return (_R); \ | |
777 | } while (0) | |
af507979 UD |
778 | # define ALLOC_WBUF(_B, _S, _R) \ |
779 | do { \ | |
780 | (_B) = (wchar_t *)malloc(_S); \ | |
781 | if ((_B) == NULL) \ | |
782 | return (_R); \ | |
783 | } while (0) | |
f8b87ef0 UD |
784 | |
785 | #endif /* _G_HAVE_MMAP */ | |
96aa2d94 RM |
786 | |
787 | #ifndef OS_FSTAT | |
40a55d20 | 788 | # define OS_FSTAT fstat |
96aa2d94 | 789 | #endif |
79937577 | 790 | extern int _IO_vscanf (const char *, _IO_va_list) __THROW; |
96aa2d94 | 791 | |
d64b6ad0 | 792 | /* _IO_pos_BAD is an _IO_off64_t value indicating error, unknown, or EOF. */ |
96aa2d94 | 793 | #ifndef _IO_pos_BAD |
d64b6ad0 | 794 | # define _IO_pos_BAD ((_IO_off64_t) -1) |
96aa2d94 | 795 | #endif |
d64b6ad0 | 796 | /* _IO_pos_adjust adjust an _IO_off64_t by some number of bytes. */ |
96aa2d94 | 797 | #ifndef _IO_pos_adjust |
d64b6ad0 | 798 | # define _IO_pos_adjust(pos, delta) ((pos) += (delta)) |
96aa2d94 | 799 | #endif |
d64b6ad0 | 800 | /* _IO_pos_0 is an _IO_off64_t value indicating beginning of file. */ |
96aa2d94 | 801 | #ifndef _IO_pos_0 |
d64b6ad0 | 802 | # define _IO_pos_0 ((_IO_off64_t) 0) |
96aa2d94 RM |
803 | #endif |
804 | ||
4547c1a4 UD |
805 | #ifdef __cplusplus |
806 | } | |
807 | #endif | |
96aa2d94 | 808 | |
499e7464 | 809 | #ifdef _IO_MTSAFE_IO |
96aa2d94 | 810 | /* check following! */ |
1ddf537f | 811 | # ifdef _IO_USE_OLD_IO_FILE |
d64b6ad0 | 812 | # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \ |
96aa2d94 | 813 | { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \ |
319d719d | 814 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \ |
73c115ed | 815 | 0, _IO_pos_BAD, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock } |
1ddf537f | 816 | # else |
319d719d UD |
817 | # if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T |
818 | # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \ | |
1ddf537f | 819 | { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \ |
319d719d | 820 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \ |
d64b6ad0 UD |
821 | 0, _IO_pos_BAD, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock, _IO_pos_BAD,\ |
822 | NULL, WDP, 0 } | |
319d719d UD |
823 | # else |
824 | # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \ | |
825 | { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \ | |
826 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \ | |
827 | 0, _IO_pos_BAD, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock, _IO_pos_BAD,\ | |
828 | 0 } | |
829 | # endif | |
1ddf537f | 830 | # endif |
499e7464 | 831 | #else |
1ddf537f | 832 | # ifdef _IO_USE_OLD_IO_FILE |
b4e3df5d | 833 | # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \ |
499e7464 | 834 | { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \ |
73c115ed GM |
835 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \ |
836 | 0, _IO_pos_BAD } | |
1ddf537f | 837 | # else |
319d719d UD |
838 | # if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T |
839 | # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \ | |
1ddf537f | 840 | { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \ |
319d719d | 841 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \ |
d64b6ad0 UD |
842 | 0, _IO_pos_BAD, 0, 0, { 0 }, 0, _IO_pos_BAD, \ |
843 | NULL, WDP, 0 } | |
319d719d UD |
844 | # else |
845 | # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \ | |
846 | { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \ | |
847 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \ | |
848 | 0, _IO_pos_BAD, 0, 0, { 0 }, 0, _IO_pos_BAD, \ | |
849 | 0 } | |
850 | # endif | |
1ddf537f | 851 | # endif |
499e7464 | 852 | #endif |
96aa2d94 | 853 | |
965a54a4 | 854 | #define _IO_va_start(args, last) va_start(args, last) |
96aa2d94 RM |
855 | |
856 | extern struct _IO_fake_stdiobuf _IO_stdin_buf, _IO_stdout_buf, _IO_stderr_buf; | |
857 | ||
858 | #if 1 | |
40a55d20 | 859 | # define COERCE_FILE(FILE) /* Nothing */ |
96aa2d94 RM |
860 | #else |
861 | /* This is part of the kludge for binary compatibility with old stdio. */ | |
40a55d20 | 862 | # define COERCE_FILE(FILE) \ |
96aa2d94 RM |
863 | (((FILE)->_IO_file_flags & _IO_MAGIC_MASK) == _OLD_MAGIC_MASK \ |
864 | && (FILE) = *(FILE**)&((int*)fp)[1]) | |
865 | #endif | |
866 | ||
867 | #ifdef EINVAL | |
40a55d20 | 868 | # define MAYBE_SET_EINVAL __set_errno (EINVAL) |
96aa2d94 | 869 | #else |
40a55d20 | 870 | # define MAYBE_SET_EINVAL /* nothing */ |
96aa2d94 RM |
871 | #endif |
872 | ||
f65fd747 | 873 | #ifdef IO_DEBUG |
40a55d20 | 874 | # define CHECK_FILE(FILE, RET) \ |
96aa2d94 RM |
875 | if ((FILE) == NULL) { MAYBE_SET_EINVAL; return RET; } \ |
876 | else { COERCE_FILE(FILE); \ | |
877 | if (((FILE)->_IO_file_flags & _IO_MAGIC_MASK) != _IO_MAGIC) \ | |
68dbb3a6 | 878 | { MAYBE_SET_EINVAL; return RET; }} |
96aa2d94 | 879 | #else |
40a55d20 | 880 | # define CHECK_FILE(FILE, RET) COERCE_FILE (FILE) |
96aa2d94 | 881 | #endif |
eef80cf8 UD |
882 | |
883 | static inline void | |
884 | __attribute__ ((__always_inline__)) | |
885 | _IO_acquire_lock_fct (_IO_FILE **p) | |
886 | { | |
887 | _IO_FILE *fp = *p; | |
888 | if ((fp->_flags & _IO_USER_LOCK) == 0) | |
889 | _IO_funlockfile (fp); | |
890 | } | |
b257c726 UD |
891 | |
892 | static inline void | |
893 | __attribute__ ((__always_inline__)) | |
894 | _IO_acquire_lock_clear_flags2_fct (_IO_FILE **p) | |
895 | { | |
896 | _IO_FILE *fp = *p; | |
874aa523 | 897 | fp->_flags2 &= ~(_IO_FLAGS2_FORTIFY | _IO_FLAGS2_SCANF_STD); |
b257c726 UD |
898 | if ((fp->_flags & _IO_USER_LOCK) == 0) |
899 | _IO_funlockfile (fp); | |
900 | } | |
b2e1c562 RM |
901 | |
902 | #if !defined _IO_MTSAFE_IO && !defined NOT_IN_libc | |
903 | # define _IO_acquire_lock(_fp) \ | |
904 | do { \ | |
905 | _IO_FILE *_IO_acquire_lock_file = NULL | |
906 | # define _IO_acquire_lock_clear_flags2(_fp) \ | |
907 | do { \ | |
908 | _IO_FILE *_IO_acquire_lock_file = (_fp) | |
909 | # define _IO_release_lock(_fp) \ | |
910 | if (_IO_acquire_lock_file != NULL) \ | |
911 | _IO_acquire_lock_file->_flags2 &= ~(_IO_FLAGS2_FORTIFY \ | |
912 | | _IO_FLAGS2_SCANF_STD); \ | |
913 | } while (0) | |
914 | #endif |