1 | |
2 | /* fcntl module */ |
3 | |
4 | #define PY_SSIZE_T_CLEAN |
5 | |
6 | #include "Python.h" |
7 | |
8 | #ifdef HAVE_SYS_FILE_H |
9 | #include <sys/file.h> |
10 | #endif |
11 | |
12 | #include <sys/ioctl.h> |
13 | #include <fcntl.h> |
14 | #ifdef HAVE_STROPTS_H |
15 | #include <stropts.h> |
16 | #endif |
17 | |
18 | /*[clinic input] |
19 | module fcntl |
20 | [clinic start generated code]*/ |
21 | /*[clinic end generated code: output=da39a3ee5e6b4b0d input=124b58387c158179]*/ |
22 | |
23 | #include "clinic/fcntlmodule.c.h" |
24 | |
25 | /*[clinic input] |
26 | fcntl.fcntl |
27 | |
28 | fd: fildes |
29 | cmd as code: int |
30 | arg: object(c_default='NULL') = 0 |
31 | / |
32 | |
33 | Perform the operation `cmd` on file descriptor fd. |
34 | |
35 | The values used for `cmd` are operating system dependent, and are available |
36 | as constants in the fcntl module, using the same names as used in |
37 | the relevant C header files. The argument arg is optional, and |
38 | defaults to 0; it may be an int or a string. If arg is given as a string, |
39 | the return value of fcntl is a string of that length, containing the |
40 | resulting value put in the arg buffer by the operating system. The length |
41 | of the arg string is not allowed to exceed 1024 bytes. If the arg given |
42 | is an integer or if none is specified, the result value is an integer |
43 | corresponding to the return value of the fcntl call in the C code. |
44 | [clinic start generated code]*/ |
45 | |
46 | static PyObject * |
47 | fcntl_fcntl_impl(PyObject *module, int fd, int code, PyObject *arg) |
48 | /*[clinic end generated code: output=888fc93b51c295bd input=7955340198e5f334]*/ |
49 | { |
50 | unsigned int int_arg = 0; |
51 | int ret; |
52 | char *str; |
53 | Py_ssize_t len; |
54 | char buf[1024]; |
55 | int async_err = 0; |
56 | |
57 | if (PySys_Audit("fcntl.fcntl" , "iiO" , fd, code, arg ? arg : Py_None) < 0) { |
58 | return NULL; |
59 | } |
60 | |
61 | if (arg != NULL) { |
62 | int parse_result; |
63 | |
64 | if (PyArg_Parse(arg, "s#" , &str, &len)) { |
65 | if ((size_t)len > sizeof buf) { |
66 | PyErr_SetString(PyExc_ValueError, |
67 | "fcntl string arg too long" ); |
68 | return NULL; |
69 | } |
70 | memcpy(buf, str, len); |
71 | do { |
72 | Py_BEGIN_ALLOW_THREADS |
73 | ret = fcntl(fd, code, buf); |
74 | Py_END_ALLOW_THREADS |
75 | } while (ret == -1 && errno == EINTR && !(async_err = PyErr_CheckSignals())); |
76 | if (ret < 0) { |
77 | return !async_err ? PyErr_SetFromErrno(PyExc_OSError) : NULL; |
78 | } |
79 | return PyBytes_FromStringAndSize(buf, len); |
80 | } |
81 | |
82 | PyErr_Clear(); |
83 | parse_result = PyArg_Parse(arg, |
84 | "I;fcntl requires a file or file descriptor," |
85 | " an integer and optionally a third integer or a string" , |
86 | &int_arg); |
87 | if (!parse_result) { |
88 | return NULL; |
89 | } |
90 | } |
91 | |
92 | do { |
93 | Py_BEGIN_ALLOW_THREADS |
94 | ret = fcntl(fd, code, (int)int_arg); |
95 | Py_END_ALLOW_THREADS |
96 | } while (ret == -1 && errno == EINTR && !(async_err = PyErr_CheckSignals())); |
97 | if (ret < 0) { |
98 | return !async_err ? PyErr_SetFromErrno(PyExc_OSError) : NULL; |
99 | } |
100 | return PyLong_FromLong((long)ret); |
101 | } |
102 | |
103 | |
104 | /*[clinic input] |
105 | fcntl.ioctl |
106 | |
107 | fd: fildes |
108 | request as code: unsigned_int(bitwise=True) |
109 | arg as ob_arg: object(c_default='NULL') = 0 |
110 | mutate_flag as mutate_arg: bool = True |
111 | / |
112 | |
113 | Perform the operation `request` on file descriptor `fd`. |
114 | |
115 | The values used for `request` are operating system dependent, and are available |
116 | as constants in the fcntl or termios library modules, using the same names as |
117 | used in the relevant C header files. |
118 | |
119 | The argument `arg` is optional, and defaults to 0; it may be an int or a |
120 | buffer containing character data (most likely a string or an array). |
121 | |
122 | If the argument is a mutable buffer (such as an array) and if the |
123 | mutate_flag argument (which is only allowed in this case) is true then the |
124 | buffer is (in effect) passed to the operating system and changes made by |
125 | the OS will be reflected in the contents of the buffer after the call has |
126 | returned. The return value is the integer returned by the ioctl system |
127 | call. |
128 | |
129 | If the argument is a mutable buffer and the mutable_flag argument is false, |
130 | the behavior is as if a string had been passed. |
131 | |
132 | If the argument is an immutable buffer (most likely a string) then a copy |
133 | of the buffer is passed to the operating system and the return value is a |
134 | string of the same length containing whatever the operating system put in |
135 | the buffer. The length of the arg buffer in this case is not allowed to |
136 | exceed 1024 bytes. |
137 | |
138 | If the arg given is an integer or if none is specified, the result value is |
139 | an integer corresponding to the return value of the ioctl call in the C |
140 | code. |
141 | [clinic start generated code]*/ |
142 | |
143 | static PyObject * |
144 | fcntl_ioctl_impl(PyObject *module, int fd, unsigned int code, |
145 | PyObject *ob_arg, int mutate_arg) |
146 | /*[clinic end generated code: output=7f7f5840c65991be input=967b4a4cbeceb0a8]*/ |
147 | { |
148 | #define IOCTL_BUFSZ 1024 |
149 | /* We use the unsigned non-checked 'I' format for the 'code' parameter |
150 | because the system expects it to be a 32bit bit field value |
151 | regardless of it being passed as an int or unsigned long on |
152 | various platforms. See the termios.TIOCSWINSZ constant across |
153 | platforms for an example of this. |
154 | |
155 | If any of the 64bit platforms ever decide to use more than 32bits |
156 | in their unsigned long ioctl codes this will break and need |
157 | special casing based on the platform being built on. |
158 | */ |
159 | int arg = 0; |
160 | int ret; |
161 | Py_buffer pstr; |
162 | char *str; |
163 | Py_ssize_t len; |
164 | char buf[IOCTL_BUFSZ+1]; /* argument plus NUL byte */ |
165 | |
166 | if (PySys_Audit("fcntl.ioctl" , "iIO" , fd, code, |
167 | ob_arg ? ob_arg : Py_None) < 0) { |
168 | return NULL; |
169 | } |
170 | |
171 | if (ob_arg != NULL) { |
172 | if (PyArg_Parse(ob_arg, "w*:ioctl" , &pstr)) { |
173 | char *arg; |
174 | str = pstr.buf; |
175 | len = pstr.len; |
176 | |
177 | if (mutate_arg) { |
178 | if (len <= IOCTL_BUFSZ) { |
179 | memcpy(buf, str, len); |
180 | buf[len] = '\0'; |
181 | arg = buf; |
182 | } |
183 | else { |
184 | arg = str; |
185 | } |
186 | } |
187 | else { |
188 | if (len > IOCTL_BUFSZ) { |
189 | PyBuffer_Release(&pstr); |
190 | PyErr_SetString(PyExc_ValueError, |
191 | "ioctl string arg too long" ); |
192 | return NULL; |
193 | } |
194 | else { |
195 | memcpy(buf, str, len); |
196 | buf[len] = '\0'; |
197 | arg = buf; |
198 | } |
199 | } |
200 | if (buf == arg) { |
201 | Py_BEGIN_ALLOW_THREADS /* think array.resize() */ |
202 | ret = ioctl(fd, code, arg); |
203 | Py_END_ALLOW_THREADS |
204 | } |
205 | else { |
206 | ret = ioctl(fd, code, arg); |
207 | } |
208 | if (mutate_arg && (len <= IOCTL_BUFSZ)) { |
209 | memcpy(str, buf, len); |
210 | } |
211 | PyBuffer_Release(&pstr); /* No further access to str below this point */ |
212 | if (ret < 0) { |
213 | PyErr_SetFromErrno(PyExc_OSError); |
214 | return NULL; |
215 | } |
216 | if (mutate_arg) { |
217 | return PyLong_FromLong(ret); |
218 | } |
219 | else { |
220 | return PyBytes_FromStringAndSize(buf, len); |
221 | } |
222 | } |
223 | |
224 | PyErr_Clear(); |
225 | if (PyArg_Parse(ob_arg, "s*:ioctl" , &pstr)) { |
226 | str = pstr.buf; |
227 | len = pstr.len; |
228 | if (len > IOCTL_BUFSZ) { |
229 | PyBuffer_Release(&pstr); |
230 | PyErr_SetString(PyExc_ValueError, |
231 | "ioctl string arg too long" ); |
232 | return NULL; |
233 | } |
234 | memcpy(buf, str, len); |
235 | buf[len] = '\0'; |
236 | Py_BEGIN_ALLOW_THREADS |
237 | ret = ioctl(fd, code, buf); |
238 | Py_END_ALLOW_THREADS |
239 | if (ret < 0) { |
240 | PyBuffer_Release(&pstr); |
241 | PyErr_SetFromErrno(PyExc_OSError); |
242 | return NULL; |
243 | } |
244 | PyBuffer_Release(&pstr); |
245 | return PyBytes_FromStringAndSize(buf, len); |
246 | } |
247 | |
248 | PyErr_Clear(); |
249 | if (!PyArg_Parse(ob_arg, |
250 | "i;ioctl requires a file or file descriptor," |
251 | " an integer and optionally an integer or buffer argument" , |
252 | &arg)) { |
253 | return NULL; |
254 | } |
255 | // Fall-through to outside the 'if' statement. |
256 | } |
257 | Py_BEGIN_ALLOW_THREADS |
258 | ret = ioctl(fd, code, arg); |
259 | Py_END_ALLOW_THREADS |
260 | if (ret < 0) { |
261 | PyErr_SetFromErrno(PyExc_OSError); |
262 | return NULL; |
263 | } |
264 | return PyLong_FromLong((long)ret); |
265 | #undef IOCTL_BUFSZ |
266 | } |
267 | |
268 | /*[clinic input] |
269 | fcntl.flock |
270 | |
271 | fd: fildes |
272 | operation as code: int |
273 | / |
274 | |
275 | Perform the lock operation `operation` on file descriptor `fd`. |
276 | |
277 | See the Unix manual page for flock(2) for details (On some systems, this |
278 | function is emulated using fcntl()). |
279 | [clinic start generated code]*/ |
280 | |
281 | static PyObject * |
282 | fcntl_flock_impl(PyObject *module, int fd, int code) |
283 | /*[clinic end generated code: output=84059e2b37d2fc64 input=0bfc00f795953452]*/ |
284 | { |
285 | int ret; |
286 | int async_err = 0; |
287 | |
288 | if (PySys_Audit("fcntl.flock" , "ii" , fd, code) < 0) { |
289 | return NULL; |
290 | } |
291 | |
292 | #ifdef HAVE_FLOCK |
293 | do { |
294 | Py_BEGIN_ALLOW_THREADS |
295 | ret = flock(fd, code); |
296 | Py_END_ALLOW_THREADS |
297 | } while (ret == -1 && errno == EINTR && !(async_err = PyErr_CheckSignals())); |
298 | #else |
299 | |
300 | #ifndef LOCK_SH |
301 | #define LOCK_SH 1 /* shared lock */ |
302 | #define LOCK_EX 2 /* exclusive lock */ |
303 | #define LOCK_NB 4 /* don't block when locking */ |
304 | #define LOCK_UN 8 /* unlock */ |
305 | #endif |
306 | { |
307 | struct flock l; |
308 | if (code == LOCK_UN) |
309 | l.l_type = F_UNLCK; |
310 | else if (code & LOCK_SH) |
311 | l.l_type = F_RDLCK; |
312 | else if (code & LOCK_EX) |
313 | l.l_type = F_WRLCK; |
314 | else { |
315 | PyErr_SetString(PyExc_ValueError, |
316 | "unrecognized flock argument" ); |
317 | return NULL; |
318 | } |
319 | l.l_whence = l.l_start = l.l_len = 0; |
320 | do { |
321 | Py_BEGIN_ALLOW_THREADS |
322 | ret = fcntl(fd, (code & LOCK_NB) ? F_SETLK : F_SETLKW, &l); |
323 | Py_END_ALLOW_THREADS |
324 | } while (ret == -1 && errno == EINTR && !(async_err = PyErr_CheckSignals())); |
325 | } |
326 | #endif /* HAVE_FLOCK */ |
327 | if (ret < 0) { |
328 | return !async_err ? PyErr_SetFromErrno(PyExc_OSError) : NULL; |
329 | } |
330 | Py_RETURN_NONE; |
331 | } |
332 | |
333 | |
334 | /*[clinic input] |
335 | fcntl.lockf |
336 | |
337 | fd: fildes |
338 | cmd as code: int |
339 | len as lenobj: object(c_default='NULL') = 0 |
340 | start as startobj: object(c_default='NULL') = 0 |
341 | whence: int = 0 |
342 | / |
343 | |
344 | A wrapper around the fcntl() locking calls. |
345 | |
346 | `fd` is the file descriptor of the file to lock or unlock, and operation is one |
347 | of the following values: |
348 | |
349 | LOCK_UN - unlock |
350 | LOCK_SH - acquire a shared lock |
351 | LOCK_EX - acquire an exclusive lock |
352 | |
353 | When operation is LOCK_SH or LOCK_EX, it can also be bitwise ORed with |
354 | LOCK_NB to avoid blocking on lock acquisition. If LOCK_NB is used and the |
355 | lock cannot be acquired, an OSError will be raised and the exception will |
356 | have an errno attribute set to EACCES or EAGAIN (depending on the operating |
357 | system -- for portability, check for either value). |
358 | |
359 | `len` is the number of bytes to lock, with the default meaning to lock to |
360 | EOF. `start` is the byte offset, relative to `whence`, to that the lock |
361 | starts. `whence` is as with fileobj.seek(), specifically: |
362 | |
363 | 0 - relative to the start of the file (SEEK_SET) |
364 | 1 - relative to the current buffer position (SEEK_CUR) |
365 | 2 - relative to the end of the file (SEEK_END) |
366 | [clinic start generated code]*/ |
367 | |
368 | static PyObject * |
369 | fcntl_lockf_impl(PyObject *module, int fd, int code, PyObject *lenobj, |
370 | PyObject *startobj, int whence) |
371 | /*[clinic end generated code: output=4985e7a172e7461a input=5480479fc63a04b8]*/ |
372 | { |
373 | int ret; |
374 | int async_err = 0; |
375 | |
376 | if (PySys_Audit("fcntl.lockf" , "iiOOi" , fd, code, lenobj ? lenobj : Py_None, |
377 | startobj ? startobj : Py_None, whence) < 0) { |
378 | return NULL; |
379 | } |
380 | |
381 | #ifndef LOCK_SH |
382 | #define LOCK_SH 1 /* shared lock */ |
383 | #define LOCK_EX 2 /* exclusive lock */ |
384 | #define LOCK_NB 4 /* don't block when locking */ |
385 | #define LOCK_UN 8 /* unlock */ |
386 | #endif /* LOCK_SH */ |
387 | { |
388 | struct flock l; |
389 | if (code == LOCK_UN) |
390 | l.l_type = F_UNLCK; |
391 | else if (code & LOCK_SH) |
392 | l.l_type = F_RDLCK; |
393 | else if (code & LOCK_EX) |
394 | l.l_type = F_WRLCK; |
395 | else { |
396 | PyErr_SetString(PyExc_ValueError, |
397 | "unrecognized lockf argument" ); |
398 | return NULL; |
399 | } |
400 | l.l_start = l.l_len = 0; |
401 | if (startobj != NULL) { |
402 | #if !defined(HAVE_LARGEFILE_SUPPORT) |
403 | l.l_start = PyLong_AsLong(startobj); |
404 | #else |
405 | l.l_start = PyLong_Check(startobj) ? |
406 | PyLong_AsLongLong(startobj) : |
407 | PyLong_AsLong(startobj); |
408 | #endif |
409 | if (PyErr_Occurred()) |
410 | return NULL; |
411 | } |
412 | if (lenobj != NULL) { |
413 | #if !defined(HAVE_LARGEFILE_SUPPORT) |
414 | l.l_len = PyLong_AsLong(lenobj); |
415 | #else |
416 | l.l_len = PyLong_Check(lenobj) ? |
417 | PyLong_AsLongLong(lenobj) : |
418 | PyLong_AsLong(lenobj); |
419 | #endif |
420 | if (PyErr_Occurred()) |
421 | return NULL; |
422 | } |
423 | l.l_whence = whence; |
424 | do { |
425 | Py_BEGIN_ALLOW_THREADS |
426 | ret = fcntl(fd, (code & LOCK_NB) ? F_SETLK : F_SETLKW, &l); |
427 | Py_END_ALLOW_THREADS |
428 | } while (ret == -1 && errno == EINTR && !(async_err = PyErr_CheckSignals())); |
429 | } |
430 | if (ret < 0) { |
431 | return !async_err ? PyErr_SetFromErrno(PyExc_OSError) : NULL; |
432 | } |
433 | Py_RETURN_NONE; |
434 | } |
435 | |
436 | /* List of functions */ |
437 | |
438 | static PyMethodDef fcntl_methods[] = { |
439 | FCNTL_FCNTL_METHODDEF |
440 | FCNTL_IOCTL_METHODDEF |
441 | FCNTL_FLOCK_METHODDEF |
442 | FCNTL_LOCKF_METHODDEF |
443 | {NULL, NULL} /* sentinel */ |
444 | }; |
445 | |
446 | |
447 | PyDoc_STRVAR(module_doc, |
448 | "This module performs file control and I/O control on file\n\ |
449 | descriptors. It is an interface to the fcntl() and ioctl() Unix\n\ |
450 | routines. File descriptors can be obtained with the fileno() method of\n\ |
451 | a file or socket object." ); |
452 | |
453 | /* Module initialisation */ |
454 | |
455 | |
456 | static int |
457 | all_ins(PyObject* m) |
458 | { |
459 | if (PyModule_AddIntMacro(m, LOCK_SH)) return -1; |
460 | if (PyModule_AddIntMacro(m, LOCK_EX)) return -1; |
461 | if (PyModule_AddIntMacro(m, LOCK_NB)) return -1; |
462 | if (PyModule_AddIntMacro(m, LOCK_UN)) return -1; |
463 | /* GNU extensions, as of glibc 2.2.4 */ |
464 | #ifdef LOCK_MAND |
465 | if (PyModule_AddIntMacro(m, LOCK_MAND)) return -1; |
466 | #endif |
467 | #ifdef LOCK_READ |
468 | if (PyModule_AddIntMacro(m, LOCK_READ)) return -1; |
469 | #endif |
470 | #ifdef LOCK_WRITE |
471 | if (PyModule_AddIntMacro(m, LOCK_WRITE)) return -1; |
472 | #endif |
473 | #ifdef LOCK_RW |
474 | if (PyModule_AddIntMacro(m, LOCK_RW)) return -1; |
475 | #endif |
476 | |
477 | #ifdef F_DUPFD |
478 | if (PyModule_AddIntMacro(m, F_DUPFD)) return -1; |
479 | #endif |
480 | #ifdef F_DUPFD_CLOEXEC |
481 | if (PyModule_AddIntMacro(m, F_DUPFD_CLOEXEC)) return -1; |
482 | #endif |
483 | #ifdef F_GETFD |
484 | if (PyModule_AddIntMacro(m, F_GETFD)) return -1; |
485 | #endif |
486 | #ifdef F_SETFD |
487 | if (PyModule_AddIntMacro(m, F_SETFD)) return -1; |
488 | #endif |
489 | #ifdef F_GETFL |
490 | if (PyModule_AddIntMacro(m, F_GETFL)) return -1; |
491 | #endif |
492 | #ifdef F_SETFL |
493 | if (PyModule_AddIntMacro(m, F_SETFL)) return -1; |
494 | #endif |
495 | #ifdef F_GETLK |
496 | if (PyModule_AddIntMacro(m, F_GETLK)) return -1; |
497 | #endif |
498 | #ifdef F_SETLK |
499 | if (PyModule_AddIntMacro(m, F_SETLK)) return -1; |
500 | #endif |
501 | #ifdef F_SETLKW |
502 | if (PyModule_AddIntMacro(m, F_SETLKW)) return -1; |
503 | #endif |
504 | #ifdef F_OFD_GETLK |
505 | if (PyModule_AddIntMacro(m, F_OFD_GETLK)) return -1; |
506 | #endif |
507 | #ifdef F_OFD_SETLK |
508 | if (PyModule_AddIntMacro(m, F_OFD_SETLK)) return -1; |
509 | #endif |
510 | #ifdef F_OFD_SETLKW |
511 | if (PyModule_AddIntMacro(m, F_OFD_SETLKW)) return -1; |
512 | #endif |
513 | #ifdef F_GETOWN |
514 | if (PyModule_AddIntMacro(m, F_GETOWN)) return -1; |
515 | #endif |
516 | #ifdef F_SETOWN |
517 | if (PyModule_AddIntMacro(m, F_SETOWN)) return -1; |
518 | #endif |
519 | #ifdef F_GETPATH |
520 | if (PyModule_AddIntMacro(m, F_GETPATH)) return -1; |
521 | #endif |
522 | #ifdef F_GETSIG |
523 | if (PyModule_AddIntMacro(m, F_GETSIG)) return -1; |
524 | #endif |
525 | #ifdef F_SETSIG |
526 | if (PyModule_AddIntMacro(m, F_SETSIG)) return -1; |
527 | #endif |
528 | #ifdef F_RDLCK |
529 | if (PyModule_AddIntMacro(m, F_RDLCK)) return -1; |
530 | #endif |
531 | #ifdef F_WRLCK |
532 | if (PyModule_AddIntMacro(m, F_WRLCK)) return -1; |
533 | #endif |
534 | #ifdef F_UNLCK |
535 | if (PyModule_AddIntMacro(m, F_UNLCK)) return -1; |
536 | #endif |
537 | /* LFS constants */ |
538 | #ifdef F_GETLK64 |
539 | if (PyModule_AddIntMacro(m, F_GETLK64)) return -1; |
540 | #endif |
541 | #ifdef F_SETLK64 |
542 | if (PyModule_AddIntMacro(m, F_SETLK64)) return -1; |
543 | #endif |
544 | #ifdef F_SETLKW64 |
545 | if (PyModule_AddIntMacro(m, F_SETLKW64)) return -1; |
546 | #endif |
547 | /* GNU extensions, as of glibc 2.2.4. */ |
548 | #ifdef FASYNC |
549 | if (PyModule_AddIntMacro(m, FASYNC)) return -1; |
550 | #endif |
551 | #ifdef F_SETLEASE |
552 | if (PyModule_AddIntMacro(m, F_SETLEASE)) return -1; |
553 | #endif |
554 | #ifdef F_GETLEASE |
555 | if (PyModule_AddIntMacro(m, F_GETLEASE)) return -1; |
556 | #endif |
557 | #ifdef F_NOTIFY |
558 | if (PyModule_AddIntMacro(m, F_NOTIFY)) return -1; |
559 | #endif |
560 | /* Old BSD flock(). */ |
561 | #ifdef F_EXLCK |
562 | if (PyModule_AddIntMacro(m, F_EXLCK)) return -1; |
563 | #endif |
564 | #ifdef F_SHLCK |
565 | if (PyModule_AddIntMacro(m, F_SHLCK)) return -1; |
566 | #endif |
567 | |
568 | /* Linux specifics */ |
569 | #ifdef F_SETPIPE_SZ |
570 | if (PyModule_AddIntMacro(m, F_SETPIPE_SZ)) return -1; |
571 | #endif |
572 | #ifdef F_GETPIPE_SZ |
573 | if (PyModule_AddIntMacro(m, F_GETPIPE_SZ)) return -1; |
574 | #endif |
575 | |
576 | /* OS X specifics */ |
577 | #ifdef F_FULLFSYNC |
578 | if (PyModule_AddIntMacro(m, F_FULLFSYNC)) return -1; |
579 | #endif |
580 | #ifdef F_NOCACHE |
581 | if (PyModule_AddIntMacro(m, F_NOCACHE)) return -1; |
582 | #endif |
583 | |
584 | /* For F_{GET|SET}FL */ |
585 | #ifdef FD_CLOEXEC |
586 | if (PyModule_AddIntMacro(m, FD_CLOEXEC)) return -1; |
587 | #endif |
588 | |
589 | /* For F_NOTIFY */ |
590 | #ifdef DN_ACCESS |
591 | if (PyModule_AddIntMacro(m, DN_ACCESS)) return -1; |
592 | #endif |
593 | #ifdef DN_MODIFY |
594 | if (PyModule_AddIntMacro(m, DN_MODIFY)) return -1; |
595 | #endif |
596 | #ifdef DN_CREATE |
597 | if (PyModule_AddIntMacro(m, DN_CREATE)) return -1; |
598 | #endif |
599 | #ifdef DN_DELETE |
600 | if (PyModule_AddIntMacro(m, DN_DELETE)) return -1; |
601 | #endif |
602 | #ifdef DN_RENAME |
603 | if (PyModule_AddIntMacro(m, DN_RENAME)) return -1; |
604 | #endif |
605 | #ifdef DN_ATTRIB |
606 | if (PyModule_AddIntMacro(m, DN_ATTRIB)) return -1; |
607 | #endif |
608 | #ifdef DN_MULTISHOT |
609 | if (PyModule_AddIntMacro(m, DN_MULTISHOT)) return -1; |
610 | #endif |
611 | |
612 | #ifdef HAVE_STROPTS_H |
613 | /* Unix 98 guarantees that these are in stropts.h. */ |
614 | if (PyModule_AddIntMacro(m, I_PUSH)) return -1; |
615 | if (PyModule_AddIntMacro(m, I_POP)) return -1; |
616 | if (PyModule_AddIntMacro(m, I_LOOK)) return -1; |
617 | if (PyModule_AddIntMacro(m, I_FLUSH)) return -1; |
618 | if (PyModule_AddIntMacro(m, I_FLUSHBAND)) return -1; |
619 | if (PyModule_AddIntMacro(m, I_SETSIG)) return -1; |
620 | if (PyModule_AddIntMacro(m, I_GETSIG)) return -1; |
621 | if (PyModule_AddIntMacro(m, I_FIND)) return -1; |
622 | if (PyModule_AddIntMacro(m, I_PEEK)) return -1; |
623 | if (PyModule_AddIntMacro(m, I_SRDOPT)) return -1; |
624 | if (PyModule_AddIntMacro(m, I_GRDOPT)) return -1; |
625 | if (PyModule_AddIntMacro(m, I_NREAD)) return -1; |
626 | if (PyModule_AddIntMacro(m, I_FDINSERT)) return -1; |
627 | if (PyModule_AddIntMacro(m, I_STR)) return -1; |
628 | if (PyModule_AddIntMacro(m, I_SWROPT)) return -1; |
629 | #ifdef I_GWROPT |
630 | /* despite the comment above, old-ish glibcs miss a couple... */ |
631 | if (PyModule_AddIntMacro(m, I_GWROPT)) return -1; |
632 | #endif |
633 | if (PyModule_AddIntMacro(m, I_SENDFD)) return -1; |
634 | if (PyModule_AddIntMacro(m, I_RECVFD)) return -1; |
635 | if (PyModule_AddIntMacro(m, I_LIST)) return -1; |
636 | if (PyModule_AddIntMacro(m, I_ATMARK)) return -1; |
637 | if (PyModule_AddIntMacro(m, I_CKBAND)) return -1; |
638 | if (PyModule_AddIntMacro(m, I_GETBAND)) return -1; |
639 | if (PyModule_AddIntMacro(m, I_CANPUT)) return -1; |
640 | if (PyModule_AddIntMacro(m, I_SETCLTIME)) return -1; |
641 | #ifdef I_GETCLTIME |
642 | if (PyModule_AddIntMacro(m, I_GETCLTIME)) return -1; |
643 | #endif |
644 | if (PyModule_AddIntMacro(m, I_LINK)) return -1; |
645 | if (PyModule_AddIntMacro(m, I_UNLINK)) return -1; |
646 | if (PyModule_AddIntMacro(m, I_PLINK)) return -1; |
647 | if (PyModule_AddIntMacro(m, I_PUNLINK)) return -1; |
648 | #endif |
649 | #ifdef F_ADD_SEALS |
650 | /* Linux: file sealing for memfd_create() */ |
651 | if (PyModule_AddIntMacro(m, F_ADD_SEALS)) return -1; |
652 | if (PyModule_AddIntMacro(m, F_GET_SEALS)) return -1; |
653 | if (PyModule_AddIntMacro(m, F_SEAL_SEAL)) return -1; |
654 | if (PyModule_AddIntMacro(m, F_SEAL_SHRINK)) return -1; |
655 | if (PyModule_AddIntMacro(m, F_SEAL_GROW)) return -1; |
656 | if (PyModule_AddIntMacro(m, F_SEAL_WRITE)) return -1; |
657 | #endif |
658 | return 0; |
659 | } |
660 | |
661 | static int |
662 | fcntl_exec(PyObject *module) |
663 | { |
664 | if (all_ins(module) < 0) { |
665 | return -1; |
666 | } |
667 | return 0; |
668 | } |
669 | |
670 | static PyModuleDef_Slot fcntl_slots[] = { |
671 | {Py_mod_exec, fcntl_exec}, |
672 | {0, NULL} |
673 | }; |
674 | |
675 | static struct PyModuleDef fcntlmodule = { |
676 | PyModuleDef_HEAD_INIT, |
677 | .m_name = "fcntl" , |
678 | .m_doc = module_doc, |
679 | .m_size = 0, |
680 | .m_methods = fcntl_methods, |
681 | .m_slots = fcntl_slots, |
682 | }; |
683 | |
684 | PyMODINIT_FUNC |
685 | PyInit_fcntl(void) |
686 | { |
687 | return PyModuleDef_Init(&fcntlmodule); |
688 | } |
689 | |