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push decde5eed3d79f9d889b4d757f73e86ce6ff9241
[wine/hacks.git] / dlls / ntdll / file.c
blob972d600d6c5510ea73040ba0430d1e0d626c5490
1 /*
2 * Copyright 1999, 2000 Juergen Schmied
3 *
4 * This 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.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17 */
18
19 #include "config.h"
20 #include "wine/port.h"
21
22 #include <stdlib.h>
23 #include <string.h>
24 #include <stdio.h>
25 #include <errno.h>
26 #include <assert.h>
27 #ifdef HAVE_UNISTD_H
28 # include <unistd.h>
29 #endif
30 #ifdef HAVE_SYS_ERRNO_H
31 #include <sys/errno.h>
32 #endif
33 #ifdef HAVE_LINUX_MAJOR_H
34 # include <linux/major.h>
35 #endif
36 #ifdef HAVE_SYS_STATVFS_H
37 # include <sys/statvfs.h>
38 #endif
39 #ifdef HAVE_SYS_PARAM_H
40 # include <sys/param.h>
41 #endif
42 #ifdef HAVE_SYS_TIME_H
43 # include <sys/time.h>
44 #endif
45 #ifdef HAVE_SYS_IOCTL_H
46 #include <sys/ioctl.h>
47 #endif
48 #ifdef HAVE_POLL_H
49 #include <poll.h>
50 #endif
51 #ifdef HAVE_SYS_POLL_H
52 #include <sys/poll.h>
53 #endif
54 #ifdef HAVE_SYS_SOCKET_H
55 #include <sys/socket.h>
56 #endif
57 #ifdef HAVE_UTIME_H
58 # include <utime.h>
59 #endif
60 #ifdef HAVE_SYS_VFS_H
61 # include <sys/vfs.h>
62 #endif
63 #ifdef HAVE_SYS_MOUNT_H
64 # include <sys/mount.h>
65 #endif
66 #ifdef HAVE_SYS_STATFS_H
67 # include <sys/statfs.h>
68 #endif
69
70 #define NONAMELESSUNION
71 #define NONAMELESSSTRUCT
72 #include "ntstatus.h"
73 #define WIN32_NO_STATUS
74 #include "wine/unicode.h"
75 #include "wine/debug.h"
76 #include "wine/server.h"
77 #include "ntdll_misc.h"
78
79 #include "winternl.h"
80 #include "winioctl.h"
81 #include "ddk/ntddser.h"
82
83 WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
84
85 mode_t FILE_umask = 0;
86
87 #define SECSPERDAY 86400
88 #define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
89
90 /**************************************************************************
91 * NtOpenFile [NTDLL.@]
92 * ZwOpenFile [NTDLL.@]
93 *
94 * Open a file.
95 *
96 * PARAMS
97 * handle [O] Variable that receives the file handle on return
98 * access [I] Access desired by the caller to the file
99 * attr [I] Structure describing the file to be opened
100 * io [O] Receives details about the result of the operation
101 * sharing [I] Type of shared access the caller requires
102 * options [I] Options for the file open
103 *
104 * RETURNS
105 * Success: 0. FileHandle and IoStatusBlock are updated.
106 * Failure: An NTSTATUS error code describing the error.
107 */
108 NTSTATUS WINAPI NtOpenFile( PHANDLE handle, ACCESS_MASK access,
109 POBJECT_ATTRIBUTES attr, PIO_STATUS_BLOCK io,
110 ULONG sharing, ULONG options )
111 {
112 return NtCreateFile( handle, access, attr, io, NULL, 0,
113 sharing, FILE_OPEN, options, NULL, 0 );
114 }
115
116 /**************************************************************************
117 * NtCreateFile [NTDLL.@]
118 * ZwCreateFile [NTDLL.@]
119 *
120 * Either create a new file or directory, or open an existing file, device,
121 * directory or volume.
122 *
123 * PARAMS
124 * handle [O] Points to a variable which receives the file handle on return
125 * access [I] Desired access to the file
126 * attr [I] Structure describing the file
127 * io [O] Receives information about the operation on return
128 * alloc_size [I] Initial size of the file in bytes
129 * attributes [I] Attributes to create the file with
130 * sharing [I] Type of shared access the caller would like to the file
131 * disposition [I] Specifies what to do, depending on whether the file already exists
132 * options [I] Options for creating a new file
133 * ea_buffer [I] Pointer to an extended attributes buffer
134 * ea_length [I] Length of ea_buffer
135 *
136 * RETURNS
137 * Success: 0. handle and io are updated.
138 * Failure: An NTSTATUS error code describing the error.
139 */
140 NTSTATUS WINAPI NtCreateFile( PHANDLE handle, ACCESS_MASK access, POBJECT_ATTRIBUTES attr,
141 PIO_STATUS_BLOCK io, PLARGE_INTEGER alloc_size,
142 ULONG attributes, ULONG sharing, ULONG disposition,
143 ULONG options, PVOID ea_buffer, ULONG ea_length )
144 {
145 ANSI_STRING unix_name;
146 int created = FALSE;
147
148 TRACE("handle=%p access=%08x name=%s objattr=%08x root=%p sec=%p io=%p alloc_size=%p\n"
149 "attr=%08x sharing=%08x disp=%d options=%08x ea=%p.0x%08x\n",
150 handle, access, debugstr_us(attr->ObjectName), attr->Attributes,
151 attr->RootDirectory, attr->SecurityDescriptor, io, alloc_size,
152 attributes, sharing, disposition, options, ea_buffer, ea_length );
153
154 if (!attr || !attr->ObjectName) return STATUS_INVALID_PARAMETER;
155
156 if (alloc_size) FIXME( "alloc_size not supported\n" );
157
158 if (attr->RootDirectory)
159 {
160 FIXME( "RootDirectory %p not supported\n", attr->RootDirectory );
161 return STATUS_OBJECT_NAME_NOT_FOUND;
162 }
163
164 io->u.Status = wine_nt_to_unix_file_name( attr->ObjectName, &unix_name, disposition,
165 !(attr->Attributes & OBJ_CASE_INSENSITIVE) );
166
167 if (io->u.Status == STATUS_BAD_DEVICE_TYPE)
168 {
169 SERVER_START_REQ( open_file_object )
170 {
171 req->access = access;
172 req->attributes = attr->Attributes;
173 req->rootdir = attr->RootDirectory;
174 req->sharing = sharing;
175 req->options = options;
176 wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
177 io->u.Status = wine_server_call( req );
178 *handle = reply->handle;
179 }
180 SERVER_END_REQ;
181 if (io->u.Status == STATUS_SUCCESS) io->Information = FILE_OPENED;
182 return io->u.Status;
183 }
184
185 if (io->u.Status == STATUS_NO_SUCH_FILE &&
186 disposition != FILE_OPEN && disposition != FILE_OVERWRITE)
187 {
188 created = TRUE;
189 io->u.Status = STATUS_SUCCESS;
190 }
191
192 if (io->u.Status == STATUS_SUCCESS)
193 {
194 struct security_descriptor *sd = NULL;
195 struct object_attributes objattr;
196
197 objattr.rootdir = 0;
198 objattr.sd_len = 0;
199 objattr.name_len = 0;
200 if (attr)
201 {
202 io->u.Status = NTDLL_create_struct_sd( attr->SecurityDescriptor, &sd, &objattr.sd_len );
203 if (io->u.Status != STATUS_SUCCESS)
204 {
205 RtlFreeAnsiString( &unix_name );
206 return io->u.Status;
207 }
208 }
209
210 SERVER_START_REQ( create_file )
211 {
212 req->access = access;
213 req->attributes = attr->Attributes;
214 req->sharing = sharing;
215 req->create = disposition;
216 req->options = options;
217 req->attrs = attributes;
218 wine_server_add_data( req, &objattr, sizeof(objattr) );
219 if (objattr.sd_len) wine_server_add_data( req, sd, objattr.sd_len );
220 wine_server_add_data( req, unix_name.Buffer, unix_name.Length );
221 io->u.Status = wine_server_call( req );
222 *handle = reply->handle;
223 }
224 SERVER_END_REQ;
225 NTDLL_free_struct_sd( sd );
226 RtlFreeAnsiString( &unix_name );
227 }
228 else WARN("%s not found (%x)\n", debugstr_us(attr->ObjectName), io->u.Status );
229
230 if (io->u.Status == STATUS_SUCCESS)
231 {
232 if (created) io->Information = FILE_CREATED;
233 else switch(disposition)
234 {
235 case FILE_SUPERSEDE:
236 io->Information = FILE_SUPERSEDED;
237 break;
238 case FILE_CREATE:
239 io->Information = FILE_CREATED;
240 break;
241 case FILE_OPEN:
242 case FILE_OPEN_IF:
243 io->Information = FILE_OPENED;
244 break;
245 case FILE_OVERWRITE:
246 case FILE_OVERWRITE_IF:
247 io->Information = FILE_OVERWRITTEN;
248 break;
249 }
250 }
251
252 return io->u.Status;
253 }
254
255 /***********************************************************************
256 * Asynchronous file I/O *
257 */
258
259 struct async_fileio
260 {
261 HANDLE handle;
262 PIO_APC_ROUTINE apc;
263 void *apc_arg;
264 };
265
266 typedef struct
267 {
268 struct async_fileio io;
269 char* buffer;
270 unsigned int already;
271 unsigned int count;
272 BOOL avail_mode;
273 } async_fileio_read;
274
275 typedef struct
276 {
277 struct async_fileio io;
278 const char *buffer;
279 unsigned int already;
280 unsigned int count;
281 } async_fileio_write;
282
283
284 /* callback for file I/O user APC */
285 static void WINAPI fileio_apc( void *arg, IO_STATUS_BLOCK *io, ULONG reserved )
286 {
287 struct async_fileio *async = arg;
288 if (async->apc) async->apc( async->apc_arg, io, reserved );
289 RtlFreeHeap( GetProcessHeap(), 0, async );
290 }
291
292 /***********************************************************************
293 * FILE_GetNtStatus(void)
294 *
295 * Retrieve the Nt Status code from errno.
296 * Try to be consistent with FILE_SetDosError().
297 */
298 NTSTATUS FILE_GetNtStatus(void)
299 {
300 int err = errno;
301
302 TRACE( "errno = %d\n", errno );
303 switch (err)
304 {
305 case EAGAIN: return STATUS_SHARING_VIOLATION;
306 case EBADF: return STATUS_INVALID_HANDLE;
307 case EBUSY: return STATUS_DEVICE_BUSY;
308 case ENOSPC: return STATUS_DISK_FULL;
309 case EPERM:
310 case EROFS:
311 case EACCES: return STATUS_ACCESS_DENIED;
312 case ENOTDIR: return STATUS_OBJECT_PATH_NOT_FOUND;
313 case ENOENT: return STATUS_OBJECT_NAME_NOT_FOUND;
314 case EISDIR: return STATUS_FILE_IS_A_DIRECTORY;
315 case EMFILE:
316 case ENFILE: return STATUS_TOO_MANY_OPENED_FILES;
317 case EINVAL: return STATUS_INVALID_PARAMETER;
318 case ENOTEMPTY: return STATUS_DIRECTORY_NOT_EMPTY;
319 case EPIPE: return STATUS_PIPE_DISCONNECTED;
320 case EIO: return STATUS_DEVICE_NOT_READY;
321 #ifdef ENOMEDIUM
322 case ENOMEDIUM: return STATUS_NO_MEDIA_IN_DEVICE;
323 #endif
324 case ENXIO: return STATUS_NO_SUCH_DEVICE;
325 case ENOTTY:
326 case EOPNOTSUPP:return STATUS_NOT_SUPPORTED;
327 case ECONNRESET:return STATUS_PIPE_DISCONNECTED;
328 case EFAULT: return STATUS_ACCESS_VIOLATION;
329 case ESPIPE: return STATUS_ILLEGAL_FUNCTION;
330 case ENOEXEC: /* ?? */
331 case EEXIST: /* ?? */
332 default:
333 FIXME( "Converting errno %d to STATUS_UNSUCCESSFUL\n", err );
334 return STATUS_UNSUCCESSFUL;
335 }
336 }
337
338 /***********************************************************************
339 * FILE_AsyncReadService (INTERNAL)
340 */
341 static NTSTATUS FILE_AsyncReadService(void *user, PIO_STATUS_BLOCK iosb, NTSTATUS status, ULONG_PTR *total)
342 {
343 async_fileio_read *fileio = user;
344 int fd, needs_close, result;
345
346 switch (status)
347 {
348 case STATUS_ALERTED: /* got some new data */
349 /* check to see if the data is ready (non-blocking) */
350 if ((status = server_get_unix_fd( fileio->io.handle, FILE_READ_DATA, &fd,
351 &needs_close, NULL, NULL )))
352 break;
353
354 result = read(fd, &fileio->buffer[fileio->already], fileio->count - fileio->already);
355 if (needs_close) close( fd );
356
357 if (result < 0)
358 {
359 if (errno == EAGAIN || errno == EINTR)
360 status = STATUS_PENDING;
361 else /* check to see if the transfer is complete */
362 status = FILE_GetNtStatus();
363 }
364 else if (result == 0)
365 {
366 status = fileio->already ? STATUS_SUCCESS : STATUS_PIPE_BROKEN;
367 }
368 else
369 {
370 fileio->already += result;
371 if (fileio->already >= fileio->count || fileio->avail_mode)
372 status = STATUS_SUCCESS;
373 else
374 {
375 /* if we only have to read the available data, and none is available,
376 * simply cancel the request. If data was available, it has been read
377 * while in by previous call (NtDelayExecution)
378 */
379 status = (fileio->avail_mode) ? STATUS_SUCCESS : STATUS_PENDING;
380 }
381 }
382 break;
383
384 case STATUS_TIMEOUT:
385 case STATUS_IO_TIMEOUT:
386 if (fileio->already) status = STATUS_SUCCESS;
387 break;
388 }
389 if (status != STATUS_PENDING)
390 {
391 iosb->u.Status = status;
392 iosb->Information = *total = fileio->already;
393 }
394 return status;
395 }
396
397 struct io_timeouts
398 {
399 int interval; /* max interval between two bytes */
400 int total; /* total timeout for the whole operation */
401 int end_time; /* absolute time of end of operation */
402 };
403
404 /* retrieve the I/O timeouts to use for a given handle */
405 static NTSTATUS get_io_timeouts( HANDLE handle, enum server_fd_type type, ULONG count, BOOL is_read,
406 struct io_timeouts *timeouts )
407 {
408 NTSTATUS status = STATUS_SUCCESS;
409
410 timeouts->interval = timeouts->total = -1;
411
412 switch(type)
413 {
414 case FD_TYPE_SERIAL:
415 {
416 /* GetCommTimeouts */
417 SERIAL_TIMEOUTS st;
418 IO_STATUS_BLOCK io;
419
420 status = NtDeviceIoControlFile( handle, NULL, NULL, NULL, &io,
421 IOCTL_SERIAL_GET_TIMEOUTS, NULL, 0, &st, sizeof(st) );
422 if (status) break;
423
424 if (is_read)
425 {
426 if (st.ReadIntervalTimeout)
427 timeouts->interval = st.ReadIntervalTimeout;
428
429 if (st.ReadTotalTimeoutMultiplier || st.ReadTotalTimeoutConstant)
430 {
431 timeouts->total = st.ReadTotalTimeoutConstant;
432 if (st.ReadTotalTimeoutMultiplier != MAXDWORD)
433 timeouts->total += count * st.ReadTotalTimeoutMultiplier;
434 }
435 else if (st.ReadIntervalTimeout == MAXDWORD)
436 timeouts->interval = timeouts->total = 0;
437 }
438 else /* write */
439 {
440 if (st.WriteTotalTimeoutMultiplier || st.WriteTotalTimeoutConstant)
441 {
442 timeouts->total = st.WriteTotalTimeoutConstant;
443 if (st.WriteTotalTimeoutMultiplier != MAXDWORD)
444 timeouts->total += count * st.WriteTotalTimeoutMultiplier;
445 }
446 }
447 }
448 break;
449 case FD_TYPE_MAILSLOT:
450 if (is_read)
451 {
452 timeouts->interval = 0; /* return as soon as we got something */
453 SERVER_START_REQ( set_mailslot_info )
454 {
455 req->handle = handle;
456 req->flags = 0;
457 if (!(status = wine_server_call( req )) &&
458 reply->read_timeout != TIMEOUT_INFINITE)
459 timeouts->total = reply->read_timeout / -10000;
460 }
461 SERVER_END_REQ;
462 }
463 break;
464 case FD_TYPE_SOCKET:
465 case FD_TYPE_PIPE:
466 case FD_TYPE_CHAR:
467 if (is_read) timeouts->interval = 0; /* return as soon as we got something */
468 break;
469 default:
470 break;
471 }
472 if (timeouts->total != -1) timeouts->end_time = NtGetTickCount() + timeouts->total;
473 return STATUS_SUCCESS;
474 }
475
476
477 /* retrieve the timeout for the next wait, in milliseconds */
478 static inline int get_next_io_timeout( const struct io_timeouts *timeouts, ULONG already )
479 {
480 int ret = -1;
481
482 if (timeouts->total != -1)
483 {
484 ret = timeouts->end_time - NtGetTickCount();
485 if (ret < 0) ret = 0;
486 }
487 if (already && timeouts->interval != -1)
488 {
489 if (ret == -1 || ret > timeouts->interval) ret = timeouts->interval;
490 }
491 return ret;
492 }
493
494
495 /* retrieve the avail_mode flag for async reads */
496 static NTSTATUS get_io_avail_mode( HANDLE handle, enum server_fd_type type, BOOL *avail_mode )
497 {
498 NTSTATUS status = STATUS_SUCCESS;
499
500 switch(type)
501 {
502 case FD_TYPE_SERIAL:
503 {
504 /* GetCommTimeouts */
505 SERIAL_TIMEOUTS st;
506 IO_STATUS_BLOCK io;
507
508 status = NtDeviceIoControlFile( handle, NULL, NULL, NULL, &io,
509 IOCTL_SERIAL_GET_TIMEOUTS, NULL, 0, &st, sizeof(st) );
510 if (status) break;
511 *avail_mode = (!st.ReadTotalTimeoutMultiplier &&
512 !st.ReadTotalTimeoutConstant &&
513 st.ReadIntervalTimeout == MAXDWORD);
514 }
515 break;
516 case FD_TYPE_MAILSLOT:
517 case FD_TYPE_SOCKET:
518 case FD_TYPE_PIPE:
519 case FD_TYPE_CHAR:
520 *avail_mode = TRUE;
521 break;
522 default:
523 *avail_mode = FALSE;
524 break;
525 }
526 return status;
527 }
528
529
530 /******************************************************************************
531 * NtReadFile [NTDLL.@]
532 * ZwReadFile [NTDLL.@]
533 *
534 * Read from an open file handle.
535 *
536 * PARAMS
537 * FileHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
538 * Event [I] Event to signal upon completion (or NULL)
539 * ApcRoutine [I] Callback to call upon completion (or NULL)
540 * ApcContext [I] Context for ApcRoutine (or NULL)
541 * IoStatusBlock [O] Receives information about the operation on return
542 * Buffer [O] Destination for the data read
543 * Length [I] Size of Buffer
544 * ByteOffset [O] Destination for the new file pointer position (or NULL)
545 * Key [O] Function unknown (may be NULL)
546 *
547 * RETURNS
548 * Success: 0. IoStatusBlock is updated, and the Information member contains
549 * The number of bytes read.
550 * Failure: An NTSTATUS error code describing the error.
551 */
552 NTSTATUS WINAPI NtReadFile(HANDLE hFile, HANDLE hEvent,
553 PIO_APC_ROUTINE apc, void* apc_user,
554 PIO_STATUS_BLOCK io_status, void* buffer, ULONG length,
555 PLARGE_INTEGER offset, PULONG key)
556 {
557 int result, unix_handle, needs_close, timeout_init_done = 0;
558 unsigned int options;
559 struct io_timeouts timeouts;
560 NTSTATUS status;
561 ULONG total = 0;
562 enum server_fd_type type;
563 ULONG_PTR cvalue = apc ? 0 : (ULONG_PTR)apc_user;
564
565 TRACE("(%p,%p,%p,%p,%p,%p,0x%08x,%p,%p),partial stub!\n",
566 hFile,hEvent,apc,apc_user,io_status,buffer,length,offset,key);
567
568 if (!io_status) return STATUS_ACCESS_VIOLATION;
569
570 status = server_get_unix_fd( hFile, FILE_READ_DATA, &unix_handle,
571 &needs_close, &type, &options );
572 if (status) return status;
573
574 if (type == FD_TYPE_FILE && offset && offset->QuadPart != (LONGLONG)-2 /* FILE_USE_FILE_POINTER_POSITION */ )
575 {
576 /* async I/O doesn't make sense on regular files */
577 while ((result = pread( unix_handle, buffer, length, offset->QuadPart )) == -1)
578 {
579 if (errno != EINTR)
580 {
581 status = FILE_GetNtStatus();
582 goto done;
583 }
584 }
585 if (options & (FILE_SYNCHRONOUS_IO_ALERT | FILE_SYNCHRONOUS_IO_NONALERT))
586 /* update file pointer position */
587 lseek( unix_handle, offset->QuadPart + result, SEEK_SET );
588
589 total = result;
590 status = total ? STATUS_SUCCESS : STATUS_END_OF_FILE;
591 goto done;
592 }
593
594 for (;;)
595 {
596 if ((result = read( unix_handle, (char *)buffer + total, length - total )) >= 0)
597 {
598 total += result;
599 if (!result || total == length)
600 {
601 if (total)
602 {
603 status = STATUS_SUCCESS;
604 goto done;
605 }
606 switch (type)
607 {
608 case FD_TYPE_FILE:
609 case FD_TYPE_CHAR:
610 status = STATUS_END_OF_FILE;
611 goto done;
612 case FD_TYPE_SERIAL:
613 break;
614 default:
615 status = STATUS_PIPE_BROKEN;
616 goto done;
617 }
618 }
619 }
620 else
621 {
622 if (errno == EINTR) continue;
623 if (errno != EAGAIN)
624 {
625 status = FILE_GetNtStatus();
626 goto done;
627 }
628 }
629
630 if (!(options & (FILE_SYNCHRONOUS_IO_ALERT | FILE_SYNCHRONOUS_IO_NONALERT)))
631 {
632 async_fileio_read *fileio;
633 BOOL avail_mode;
634
635 if ((status = get_io_avail_mode( hFile, type, &avail_mode )))
636 goto err;
637 if (total && avail_mode)
638 {
639 status = STATUS_SUCCESS;
640 goto done;
641 }
642
643 if (!(fileio = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(*fileio))))
644 {
645 status = STATUS_NO_MEMORY;
646 goto err;
647 }
648 fileio->io.handle = hFile;
649 fileio->io.apc = apc;
650 fileio->io.apc_arg = apc_user;
651 fileio->already = total;
652 fileio->count = length;
653 fileio->buffer = buffer;
654 fileio->avail_mode = avail_mode;
655
656 SERVER_START_REQ( register_async )
657 {
658 req->handle = hFile;
659 req->type = ASYNC_TYPE_READ;
660 req->count = length;
661 req->async.callback = FILE_AsyncReadService;
662 req->async.iosb = io_status;
663 req->async.arg = fileio;
664 req->async.apc = fileio_apc;
665 req->async.event = hEvent;
666 req->async.cvalue = cvalue;
667 status = wine_server_call( req );
668 }
669 SERVER_END_REQ;
670
671 if (status != STATUS_PENDING) RtlFreeHeap( GetProcessHeap(), 0, fileio );
672 goto err;
673 }
674 else /* synchronous read, wait for the fd to become ready */
675 {
676 struct pollfd pfd;
677 int ret, timeout;
678
679 if (!timeout_init_done)
680 {
681 timeout_init_done = 1;
682 if ((status = get_io_timeouts( hFile, type, length, TRUE, &timeouts )))
683 goto err;
684 if (hEvent) NtResetEvent( hEvent, NULL );
685 }
686 timeout = get_next_io_timeout( &timeouts, total );
687
688 pfd.fd = unix_handle;
689 pfd.events = POLLIN;
690
691 if (!timeout || !(ret = poll( &pfd, 1, timeout )))
692 {
693 if (total) /* return with what we got so far */
694 status = STATUS_SUCCESS;
695 else
696 status = (type == FD_TYPE_MAILSLOT) ? STATUS_IO_TIMEOUT : STATUS_TIMEOUT;
697 goto done;
698 }
699 if (ret == -1 && errno != EINTR)
700 {
701 status = FILE_GetNtStatus();
702 goto done;
703 }
704 /* will now restart the read */
705 }
706 }
707
708 done:
709 if (cvalue) NTDLL_AddCompletion( hFile, cvalue, status, total );
710
711 err:
712 if (needs_close) close( unix_handle );
713 if (status == STATUS_SUCCESS)
714 {
715 io_status->u.Status = status;
716 io_status->Information = total;
717 TRACE("= SUCCESS (%u)\n", total);
718 if (hEvent) NtSetEvent( hEvent, NULL );
719 if (apc) NtQueueApcThread( GetCurrentThread(), (PNTAPCFUNC)apc,
720 (ULONG_PTR)apc_user, (ULONG_PTR)io_status, 0 );
721 }
722 else
723 {
724 TRACE("= 0x%08x\n", status);
725 if (status != STATUS_PENDING && hEvent) NtResetEvent( hEvent, NULL );
726 }
727 return status;
728 }
729
730
731 /******************************************************************************
732 * NtReadFileScatter [NTDLL.@]
733 * ZwReadFileScatter [NTDLL.@]
734 */
735 NTSTATUS WINAPI NtReadFileScatter( HANDLE file, HANDLE event, PIO_APC_ROUTINE apc, void *apc_user,
736 PIO_STATUS_BLOCK io_status, FILE_SEGMENT_ELEMENT *segments,
737 ULONG length, PLARGE_INTEGER offset, PULONG key )
738 {
739 size_t page_size = getpagesize();
740 int result, unix_handle, needs_close;
741 unsigned int options;
742 NTSTATUS status;
743 ULONG pos = 0, total = 0;
744 enum server_fd_type type;
745 ULONG_PTR cvalue = apc ? 0 : (ULONG_PTR)apc_user;
746
747 TRACE( "(%p,%p,%p,%p,%p,%p,0x%08x,%p,%p),partial stub!\n",
748 file, event, apc, apc_user, io_status, segments, length, offset, key);
749
750 if (length % page_size) return STATUS_INVALID_PARAMETER;
751 if (!io_status) return STATUS_ACCESS_VIOLATION;
752
753 status = server_get_unix_fd( file, FILE_READ_DATA, &unix_handle,
754 &needs_close, &type, &options );
755 if (status) return status;
756
757 if ((type != FD_TYPE_FILE) ||
758 (options & (FILE_SYNCHRONOUS_IO_ALERT | FILE_SYNCHRONOUS_IO_NONALERT)) ||
759 !(options & FILE_NO_INTERMEDIATE_BUFFERING))
760 {
761 status = STATUS_INVALID_PARAMETER;
762 goto error;
763 }
764
765 while (length)
766 {
767 if (offset && offset->QuadPart != (LONGLONG)-2 /* FILE_USE_FILE_POINTER_POSITION */)
768 result = pread( unix_handle, (char *)segments->Buffer + pos,
769 page_size - pos, offset->QuadPart + total );
770 else
771 result = read( unix_handle, (char *)segments->Buffer + pos, page_size - pos );
772
773 if (result == -1)
774 {
775 if (errno == EINTR) continue;
776 status = FILE_GetNtStatus();
777 break;
778 }
779 if (!result)
780 {
781 status = STATUS_END_OF_FILE;
782 break;
783 }
784 total += result;
785 length -= result;
786 if ((pos += result) == page_size)
787 {
788 pos = 0;
789 segments++;
790 }
791 }
792
793 if (cvalue) NTDLL_AddCompletion( file, cvalue, status, total );
794
795 error:
796 if (needs_close) close( unix_handle );
797 if (status == STATUS_SUCCESS)
798 {
799 io_status->u.Status = status;
800 io_status->Information = total;
801 TRACE("= SUCCESS (%u)\n", total);
802 if (event) NtSetEvent( event, NULL );
803 if (apc) NtQueueApcThread( GetCurrentThread(), (PNTAPCFUNC)apc,
804 (ULONG_PTR)apc_user, (ULONG_PTR)io_status, 0 );
805 }
806 else
807 {
808 TRACE("= 0x%08x\n", status);
809 if (status != STATUS_PENDING && event) NtResetEvent( event, NULL );
810 }
811 return status;
812 }
813
814
815 /***********************************************************************
816 * FILE_AsyncWriteService (INTERNAL)
817 */
818 static NTSTATUS FILE_AsyncWriteService(void *user, IO_STATUS_BLOCK *iosb, NTSTATUS status, ULONG_PTR *total)
819 {
820 async_fileio_write *fileio = user;
821 int result, fd, needs_close;
822 enum server_fd_type type;
823
824 switch (status)
825 {
826 case STATUS_ALERTED:
827 /* write some data (non-blocking) */
828 if ((status = server_get_unix_fd( fileio->io.handle, FILE_WRITE_DATA, &fd,
829 &needs_close, &type, NULL )))
830 break;
831
832 if (!fileio->count && (type == FD_TYPE_MAILSLOT || type == FD_TYPE_PIPE || type == FD_TYPE_SOCKET))
833 result = send( fd, fileio->buffer, 0, 0 );
834 else
835 result = write( fd, &fileio->buffer[fileio->already], fileio->count - fileio->already );
836
837 if (needs_close) close( fd );
838
839 if (result < 0)
840 {
841 if (errno == EAGAIN || errno == EINTR) status = STATUS_PENDING;
842 else status = FILE_GetNtStatus();
843 }
844 else
845 {
846 fileio->already += result;
847 status = (fileio->already < fileio->count) ? STATUS_PENDING : STATUS_SUCCESS;
848 }
849 break;
850
851 case STATUS_TIMEOUT:
852 case STATUS_IO_TIMEOUT:
853 if (fileio->already) status = STATUS_SUCCESS;
854 break;
855 }
856 if (status != STATUS_PENDING)
857 {
858 iosb->u.Status = status;
859 iosb->Information = *total = fileio->already;
860 }
861 return status;
862 }
863
864 /******************************************************************************
865 * NtWriteFile [NTDLL.@]
866 * ZwWriteFile [NTDLL.@]
867 *
868 * Write to an open file handle.
869 *
870 * PARAMS
871 * FileHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
872 * Event [I] Event to signal upon completion (or NULL)
873 * ApcRoutine [I] Callback to call upon completion (or NULL)
874 * ApcContext [I] Context for ApcRoutine (or NULL)
875 * IoStatusBlock [O] Receives information about the operation on return
876 * Buffer [I] Source for the data to write
877 * Length [I] Size of Buffer
878 * ByteOffset [O] Destination for the new file pointer position (or NULL)
879 * Key [O] Function unknown (may be NULL)
880 *
881 * RETURNS
882 * Success: 0. IoStatusBlock is updated, and the Information member contains
883 * The number of bytes written.
884 * Failure: An NTSTATUS error code describing the error.
885 */
886 NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
887 PIO_APC_ROUTINE apc, void* apc_user,
888 PIO_STATUS_BLOCK io_status,
889 const void* buffer, ULONG length,
890 PLARGE_INTEGER offset, PULONG key)
891 {
892 int result, unix_handle, needs_close, timeout_init_done = 0;
893 unsigned int options;
894 struct io_timeouts timeouts;
895 NTSTATUS status;
896 ULONG total = 0;
897 enum server_fd_type type;
898 ULONG_PTR cvalue = apc ? 0 : (ULONG_PTR)apc_user;
899
900 TRACE("(%p,%p,%p,%p,%p,%p,0x%08x,%p,%p)!\n",
901 hFile,hEvent,apc,apc_user,io_status,buffer,length,offset,key);
902
903 if (!io_status) return STATUS_ACCESS_VIOLATION;
904
905 status = server_get_unix_fd( hFile, FILE_WRITE_DATA, &unix_handle,
906 &needs_close, &type, &options );
907 if (status) return status;
908
909 if (type == FD_TYPE_FILE && offset && offset->QuadPart != (LONGLONG)-2 /* FILE_USE_FILE_POINTER_POSITION */ )
910 {
911 /* async I/O doesn't make sense on regular files */
912 while ((result = pwrite( unix_handle, buffer, length, offset->QuadPart )) == -1)
913 {
914 if (errno != EINTR)
915 {
916 if (errno == EFAULT) status = STATUS_INVALID_USER_BUFFER;
917 else status = FILE_GetNtStatus();
918 goto done;
919 }
920 }
921
922 if (options & (FILE_SYNCHRONOUS_IO_ALERT | FILE_SYNCHRONOUS_IO_NONALERT))
923 /* update file pointer position */
924 lseek( unix_handle, offset->QuadPart + result, SEEK_SET );
925
926 total = result;
927 status = STATUS_SUCCESS;
928 goto done;
929 }
930
931 for (;;)
932 {
933 /* zero-length writes on sockets may not work with plain write(2) */
934 if (!length && (type == FD_TYPE_MAILSLOT || type == FD_TYPE_PIPE || type == FD_TYPE_SOCKET))
935 result = send( unix_handle, buffer, 0, 0 );
936 else
937 result = write( unix_handle, (const char *)buffer + total, length - total );
938
939 if (result >= 0)
940 {
941 total += result;
942 if (total == length)
943 {
944 status = STATUS_SUCCESS;
945 goto done;
946 }
947 }
948 else
949 {
950 if (errno == EINTR) continue;
951 if (errno != EAGAIN)
952 {
953 if (errno == EFAULT)
954 {
955 status = STATUS_INVALID_USER_BUFFER;
956 goto err;
957 }
958 status = FILE_GetNtStatus();
959 goto done;
960 }
961 }
962
963 if (!(options & (FILE_SYNCHRONOUS_IO_ALERT | FILE_SYNCHRONOUS_IO_NONALERT)))
964 {
965 async_fileio_write *fileio;
966
967 if (!(fileio = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(*fileio))))
968 {
969 status = STATUS_NO_MEMORY;
970 goto err;
971 }
972 fileio->io.handle = hFile;
973 fileio->io.apc = apc;
974 fileio->io.apc_arg = apc_user;
975 fileio->already = total;
976 fileio->count = length;
977 fileio->buffer = buffer;
978
979 SERVER_START_REQ( register_async )
980 {
981 req->handle = hFile;
982 req->type = ASYNC_TYPE_WRITE;
983 req->count = length;
984 req->async.callback = FILE_AsyncWriteService;
985 req->async.iosb = io_status;
986 req->async.arg = fileio;
987 req->async.apc = fileio_apc;
988 req->async.event = hEvent;
989 req->async.cvalue = cvalue;
990 status = wine_server_call( req );
991 }
992 SERVER_END_REQ;
993
994 if (status != STATUS_PENDING) RtlFreeHeap( GetProcessHeap(), 0, fileio );
995 goto err;
996 }
997 else /* synchronous write, wait for the fd to become ready */
998 {
999 struct pollfd pfd;
1000 int ret, timeout;
1001
1002 if (!timeout_init_done)
1003 {
1004 timeout_init_done = 1;
1005 if ((status = get_io_timeouts( hFile, type, length, FALSE, &timeouts )))
1006 goto err;
1007 if (hEvent) NtResetEvent( hEvent, NULL );
1008 }
1009 timeout = get_next_io_timeout( &timeouts, total );
1010
1011 pfd.fd = unix_handle;
1012 pfd.events = POLLOUT;
1013
1014 if (!timeout || !(ret = poll( &pfd, 1, timeout )))
1015 {
1016 /* return with what we got so far */
1017 status = total ? STATUS_SUCCESS : STATUS_TIMEOUT;
1018 goto done;
1019 }
1020 if (ret == -1 && errno != EINTR)
1021 {
1022 status = FILE_GetNtStatus();
1023 goto done;
1024 }
1025 /* will now restart the write */
1026 }
1027 }
1028
1029 done:
1030 if (cvalue) NTDLL_AddCompletion( hFile, cvalue, status, total );
1031
1032 err:
1033 if (needs_close) close( unix_handle );
1034 if (status == STATUS_SUCCESS)
1035 {
1036 io_status->u.Status = status;
1037 io_status->Information = total;
1038 TRACE("= SUCCESS (%u)\n", total);
1039 if (hEvent) NtSetEvent( hEvent, NULL );
1040 if (apc) NtQueueApcThread( GetCurrentThread(), (PNTAPCFUNC)apc,
1041 (ULONG_PTR)apc_user, (ULONG_PTR)io_status, 0 );
1042 }
1043 else
1044 {
1045 TRACE("= 0x%08x\n", status);
1046 if (status != STATUS_PENDING && hEvent) NtResetEvent( hEvent, NULL );
1047 }
1048 return status;
1049 }
1050
1051
1052 /******************************************************************************
1053 * NtWriteFileGather [NTDLL.@]
1054 * ZwWriteFileGather [NTDLL.@]
1055 */
1056 NTSTATUS WINAPI NtWriteFileGather( HANDLE file, HANDLE event, PIO_APC_ROUTINE apc, void *apc_user,
1057 PIO_STATUS_BLOCK io_status, FILE_SEGMENT_ELEMENT *segments,
1058 ULONG length, PLARGE_INTEGER offset, PULONG key )
1059 {
1060 size_t page_size = getpagesize();
1061 int result, unix_handle, needs_close;
1062 unsigned int options;
1063 NTSTATUS status;
1064 ULONG pos = 0, total = 0;
1065 enum server_fd_type type;
1066 ULONG_PTR cvalue = apc ? 0 : (ULONG_PTR)apc_user;
1067
1068 TRACE( "(%p,%p,%p,%p,%p,%p,0x%08x,%p,%p),partial stub!\n",
1069 file, event, apc, apc_user, io_status, segments, length, offset, key);
1070
1071 if (length % page_size) return STATUS_INVALID_PARAMETER;
1072 if (!io_status) return STATUS_ACCESS_VIOLATION;
1073
1074 status = server_get_unix_fd( file, FILE_WRITE_DATA, &unix_handle,
1075 &needs_close, &type, &options );
1076 if (status) return status;
1077
1078 if ((type != FD_TYPE_FILE) ||
1079 (options & (FILE_SYNCHRONOUS_IO_ALERT | FILE_SYNCHRONOUS_IO_NONALERT)) ||
1080 !(options & FILE_NO_INTERMEDIATE_BUFFERING))
1081 {
1082 status = STATUS_INVALID_PARAMETER;
1083 goto error;
1084 }
1085
1086 while (length)
1087 {
1088 if (offset && offset->QuadPart != (LONGLONG)-2 /* FILE_USE_FILE_POINTER_POSITION */)
1089 result = pwrite( unix_handle, (char *)segments->Buffer + pos,
1090 page_size - pos, offset->QuadPart + total );
1091 else
1092 result = write( unix_handle, (char *)segments->Buffer + pos, page_size - pos );
1093
1094 if (result == -1)
1095 {
1096 if (errno == EINTR) continue;
1097 if (errno == EFAULT)
1098 {
1099 status = STATUS_INVALID_USER_BUFFER;
1100 goto error;
1101 }
1102 status = FILE_GetNtStatus();
1103 break;
1104 }
1105 if (!result)
1106 {
1107 status = STATUS_DISK_FULL;
1108 break;
1109 }
1110 total += result;
1111 length -= result;
1112 if ((pos += result) == page_size)
1113 {
1114 pos = 0;
1115 segments++;
1116 }
1117 }
1118
1119 if (cvalue) NTDLL_AddCompletion( file, cvalue, status, total );
1120
1121 error:
1122 if (needs_close) close( unix_handle );
1123 if (status == STATUS_SUCCESS)
1124 {
1125 io_status->u.Status = status;
1126 io_status->Information = total;
1127 TRACE("= SUCCESS (%u)\n", total);
1128 if (event) NtSetEvent( event, NULL );
1129 if (apc) NtQueueApcThread( GetCurrentThread(), (PNTAPCFUNC)apc,
1130 (ULONG_PTR)apc_user, (ULONG_PTR)io_status, 0 );
1131 }
1132 else
1133 {
1134 TRACE("= 0x%08x\n", status);
1135 if (status != STATUS_PENDING && event) NtResetEvent( event, NULL );
1136 }
1137 return status;
1138 }
1139
1140
1141 struct async_ioctl
1142 {
1143 HANDLE handle; /* handle to the device */
1144 void *buffer; /* buffer for output */
1145 ULONG size; /* size of buffer */
1146 PIO_APC_ROUTINE apc; /* user apc params */
1147 void *apc_arg;
1148 };
1149
1150 /* callback for ioctl async I/O completion */
1151 static NTSTATUS ioctl_completion( void *arg, IO_STATUS_BLOCK *io, NTSTATUS status )
1152 {
1153 struct async_ioctl *async = arg;
1154
1155 if (status == STATUS_ALERTED)
1156 {
1157 SERVER_START_REQ( get_ioctl_result )
1158 {
1159 req->handle = async->handle;
1160 req->user_arg = async;
1161 wine_server_set_reply( req, async->buffer, async->size );
1162 if (!(status = wine_server_call( req )))
1163 io->Information = wine_server_reply_size( reply );
1164 }
1165 SERVER_END_REQ;
1166 }
1167 if (status != STATUS_PENDING) io->u.Status = status;
1168 return status;
1169 }
1170
1171 /* callback for ioctl user APC */
1172 static void WINAPI ioctl_apc( void *arg, IO_STATUS_BLOCK *io, ULONG reserved )
1173 {
1174 struct async_ioctl *async = arg;
1175 if (async->apc) async->apc( async->apc_arg, io, reserved );
1176 RtlFreeHeap( GetProcessHeap(), 0, async );
1177 }
1178
1179 /* do a ioctl call through the server */
1180 static NTSTATUS server_ioctl_file( HANDLE handle, HANDLE event,
1181 PIO_APC_ROUTINE apc, PVOID apc_context,
1182 IO_STATUS_BLOCK *io, ULONG code,
1183 const void *in_buffer, ULONG in_size,
1184 PVOID out_buffer, ULONG out_size )
1185 {
1186 struct async_ioctl *async;
1187 NTSTATUS status;
1188 HANDLE wait_handle;
1189 ULONG options;
1190 ULONG_PTR cvalue = apc ? 0 : (ULONG_PTR)apc_context;
1191
1192 if (!(async = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*async) )))
1193 return STATUS_NO_MEMORY;
1194 async->handle = handle;
1195 async->buffer = out_buffer;
1196 async->size = out_size;
1197 async->apc = apc;
1198 async->apc_arg = apc_context;
1199
1200 SERVER_START_REQ( ioctl )
1201 {
1202 req->handle = handle;
1203 req->code = code;
1204 req->async.callback = ioctl_completion;
1205 req->async.iosb = io;
1206 req->async.arg = async;
1207 req->async.apc = (apc || event) ? ioctl_apc : NULL;
1208 req->async.event = event;
1209 req->async.cvalue = cvalue;
1210 wine_server_add_data( req, in_buffer, in_size );
1211 wine_server_set_reply( req, out_buffer, out_size );
1212 if (!(status = wine_server_call( req )))
1213 io->Information = wine_server_reply_size( reply );
1214 wait_handle = reply->wait;
1215 options = reply->options;
1216 }
1217 SERVER_END_REQ;
1218
1219 if (status == STATUS_NOT_SUPPORTED)
1220 FIXME("Unsupported ioctl %x (device=%x access=%x func=%x method=%x)\n",
1221 code, code >> 16, (code >> 14) & 3, (code >> 2) & 0xfff, code & 3);
1222
1223 if (status != STATUS_PENDING) RtlFreeHeap( GetProcessHeap(), 0, async );
1224
1225 if (wait_handle)
1226 {
1227 NtWaitForSingleObject( wait_handle, (options & FILE_SYNCHRONOUS_IO_ALERT), NULL );
1228 status = io->u.Status;
1229 NtClose( wait_handle );
1230 RtlFreeHeap( GetProcessHeap(), 0, async );
1231 }
1232
1233 return status;
1234 }
1235
1236
1237 /**************************************************************************
1238 * NtDeviceIoControlFile [NTDLL.@]
1239 * ZwDeviceIoControlFile [NTDLL.@]
1240 *
1241 * Perform an I/O control operation on an open file handle.
1242 *
1243 * PARAMS
1244 * handle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1245 * event [I] Event to signal upon completion (or NULL)
1246 * apc [I] Callback to call upon completion (or NULL)
1247 * apc_context [I] Context for ApcRoutine (or NULL)
1248 * io [O] Receives information about the operation on return
1249 * code [I] Control code for the operation to perform
1250 * in_buffer [I] Source for any input data required (or NULL)
1251 * in_size [I] Size of InputBuffer
1252 * out_buffer [O] Source for any output data returned (or NULL)
1253 * out_size [I] Size of OutputBuffer
1254 *
1255 * RETURNS
1256 * Success: 0. IoStatusBlock is updated.
1257 * Failure: An NTSTATUS error code describing the error.
1258 */
1259 NTSTATUS WINAPI NtDeviceIoControlFile(HANDLE handle, HANDLE event,
1260 PIO_APC_ROUTINE apc, PVOID apc_context,
1261 PIO_STATUS_BLOCK io, ULONG code,
1262 PVOID in_buffer, ULONG in_size,
1263 PVOID out_buffer, ULONG out_size)
1264 {
1265 ULONG device = (code >> 16);
1266 NTSTATUS status = STATUS_NOT_SUPPORTED;
1267
1268 TRACE("(%p,%p,%p,%p,%p,0x%08x,%p,0x%08x,%p,0x%08x)\n",
1269 handle, event, apc, apc_context, io, code,
1270 in_buffer, in_size, out_buffer, out_size);
1271
1272 switch(device)
1273 {
1274 case FILE_DEVICE_DISK:
1275 case FILE_DEVICE_CD_ROM:
1276 case FILE_DEVICE_DVD:
1277 case FILE_DEVICE_CONTROLLER:
1278 case FILE_DEVICE_MASS_STORAGE:
1279 status = CDROM_DeviceIoControl(handle, event, apc, apc_context, io, code,
1280 in_buffer, in_size, out_buffer, out_size);
1281 break;
1282 case FILE_DEVICE_SERIAL_PORT:
1283 status = COMM_DeviceIoControl(handle, event, apc, apc_context, io, code,
1284 in_buffer, in_size, out_buffer, out_size);
1285 break;
1286 case FILE_DEVICE_TAPE:
1287 status = TAPE_DeviceIoControl(handle, event, apc, apc_context, io, code,
1288 in_buffer, in_size, out_buffer, out_size);
1289 break;
1290 }
1291
1292 if (status == STATUS_NOT_SUPPORTED || status == STATUS_BAD_DEVICE_TYPE)
1293 status = server_ioctl_file( handle, event, apc, apc_context, io, code,
1294 in_buffer, in_size, out_buffer, out_size );
1295
1296 if (status != STATUS_PENDING) io->u.Status = status;
1297 return status;
1298 }
1299
1300
1301 /**************************************************************************
1302 * NtFsControlFile [NTDLL.@]
1303 * ZwFsControlFile [NTDLL.@]
1304 *
1305 * Perform a file system control operation on an open file handle.
1306 *
1307 * PARAMS
1308 * handle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1309 * event [I] Event to signal upon completion (or NULL)
1310 * apc [I] Callback to call upon completion (or NULL)
1311 * apc_context [I] Context for ApcRoutine (or NULL)
1312 * io [O] Receives information about the operation on return
1313 * code [I] Control code for the operation to perform
1314 * in_buffer [I] Source for any input data required (or NULL)
1315 * in_size [I] Size of InputBuffer
1316 * out_buffer [O] Source for any output data returned (or NULL)
1317 * out_size [I] Size of OutputBuffer
1318 *
1319 * RETURNS
1320 * Success: 0. IoStatusBlock is updated.
1321 * Failure: An NTSTATUS error code describing the error.
1322 */
1323 NTSTATUS WINAPI NtFsControlFile(HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc,
1324 PVOID apc_context, PIO_STATUS_BLOCK io, ULONG code,
1325 PVOID in_buffer, ULONG in_size, PVOID out_buffer, ULONG out_size)
1326 {
1327 NTSTATUS status;
1328
1329 TRACE("(%p,%p,%p,%p,%p,0x%08x,%p,0x%08x,%p,0x%08x)\n",
1330 handle, event, apc, apc_context, io, code,
1331 in_buffer, in_size, out_buffer, out_size);
1332
1333 if (!io) return STATUS_INVALID_PARAMETER;
1334
1335 switch(code)
1336 {
1337 case FSCTL_DISMOUNT_VOLUME:
1338 status = server_ioctl_file( handle, event, apc, apc_context, io, code,
1339 in_buffer, in_size, out_buffer, out_size );
1340 if (!status) status = DIR_unmount_device( handle );
1341 break;
1342
1343 case FSCTL_PIPE_PEEK:
1344 {
1345 FILE_PIPE_PEEK_BUFFER *buffer = out_buffer;
1346 int avail = 0, fd, needs_close;
1347
1348 if (out_size < FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data ))
1349 {
1350 status = STATUS_INFO_LENGTH_MISMATCH;
1351 break;
1352 }
1353
1354 if ((status = server_get_unix_fd( handle, FILE_READ_DATA, &fd, &needs_close, NULL, NULL )))
1355 break;
1356
1357 #ifdef FIONREAD
1358 if (ioctl( fd, FIONREAD, &avail ) != 0)
1359 {
1360 TRACE("FIONREAD failed reason: %s\n",strerror(errno));
1361 if (needs_close) close( fd );
1362 status = FILE_GetNtStatus();
1363 break;
1364 }
1365 #endif
1366 if (!avail) /* check for closed pipe */
1367 {
1368 struct pollfd pollfd;
1369 int ret;
1370
1371 pollfd.fd = fd;
1372 pollfd.events = POLLIN;
1373 pollfd.revents = 0;
1374 ret = poll( &pollfd, 1, 0 );
1375 if (ret == -1 || (ret == 1 && (pollfd.revents & (POLLHUP|POLLERR))))
1376 {
1377 if (needs_close) close( fd );
1378 status = STATUS_PIPE_BROKEN;
1379 break;
1380 }
1381 }
1382 buffer->NamedPipeState = 0; /* FIXME */
1383 buffer->ReadDataAvailable = avail;
1384 buffer->NumberOfMessages = 0; /* FIXME */
1385 buffer->MessageLength = 0; /* FIXME */
1386 io->Information = FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data );
1387 status = STATUS_SUCCESS;
1388 if (avail)
1389 {
1390 ULONG data_size = out_size - FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data );
1391 if (data_size)
1392 {
1393 int res = recv( fd, buffer->Data, data_size, MSG_PEEK );
1394 if (res >= 0) io->Information += res;
1395 }
1396 }
1397 if (needs_close) close( fd );
1398 }
1399 break;
1400
1401 case FSCTL_PIPE_DISCONNECT:
1402 status = server_ioctl_file( handle, event, apc, apc_context, io, code,
1403 in_buffer, in_size, out_buffer, out_size );
1404 if (!status)
1405 {
1406 int fd = server_remove_fd_from_cache( handle );
1407 if (fd != -1) close( fd );
1408 }
1409 break;
1410
1411 case FSCTL_PIPE_IMPERSONATE:
1412 FIXME("FSCTL_PIPE_IMPERSONATE: impersonating self\n");
1413 status = RtlImpersonateSelf( SecurityImpersonation );
1414 break;
1415
1416 case FSCTL_LOCK_VOLUME:
1417 case FSCTL_UNLOCK_VOLUME:
1418 FIXME("stub! return success - Unsupported fsctl %x (device=%x access=%x func=%x method=%x)\n",
1419 code, code >> 16, (code >> 14) & 3, (code >> 2) & 0xfff, code & 3);
1420 status = STATUS_SUCCESS;
1421 break;
1422
1423 case FSCTL_PIPE_LISTEN:
1424 case FSCTL_PIPE_WAIT:
1425 default:
1426 status = server_ioctl_file( handle, event, apc, apc_context, io, code,
1427 in_buffer, in_size, out_buffer, out_size );
1428 break;
1429 }
1430
1431 if (status != STATUS_PENDING) io->u.Status = status;
1432 return status;
1433 }
1434
1435 /******************************************************************************
1436 * NtSetVolumeInformationFile [NTDLL.@]
1437 * ZwSetVolumeInformationFile [NTDLL.@]
1438 *
1439 * Set volume information for an open file handle.
1440 *
1441 * PARAMS
1442 * FileHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1443 * IoStatusBlock [O] Receives information about the operation on return
1444 * FsInformation [I] Source for volume information
1445 * Length [I] Size of FsInformation
1446 * FsInformationClass [I] Type of volume information to set
1447 *
1448 * RETURNS
1449 * Success: 0. IoStatusBlock is updated.
1450 * Failure: An NTSTATUS error code describing the error.
1451 */
1452 NTSTATUS WINAPI NtSetVolumeInformationFile(
1453 IN HANDLE FileHandle,
1454 PIO_STATUS_BLOCK IoStatusBlock,
1455 PVOID FsInformation,
1456 ULONG Length,
1457 FS_INFORMATION_CLASS FsInformationClass)
1458 {
1459 FIXME("(%p,%p,%p,0x%08x,0x%08x) stub\n",
1460 FileHandle,IoStatusBlock,FsInformation,Length,FsInformationClass);
1461 return 0;
1462 }
1463
1464 /******************************************************************************
1465 * NtQueryInformationFile [NTDLL.@]
1466 * ZwQueryInformationFile [NTDLL.@]
1467 *
1468 * Get information about an open file handle.
1469 *
1470 * PARAMS
1471 * hFile [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1472 * io [O] Receives information about the operation on return
1473 * ptr [O] Destination for file information
1474 * len [I] Size of FileInformation
1475 * class [I] Type of file information to get
1476 *
1477 * RETURNS
1478 * Success: 0. IoStatusBlock and FileInformation are updated.
1479 * Failure: An NTSTATUS error code describing the error.
1480 */
1481 NTSTATUS WINAPI NtQueryInformationFile( HANDLE hFile, PIO_STATUS_BLOCK io,
1482 PVOID ptr, LONG len, FILE_INFORMATION_CLASS class )
1483 {
1484 static const size_t info_sizes[] =
1485 {
1486 0,
1487 sizeof(FILE_DIRECTORY_INFORMATION), /* FileDirectoryInformation */
1488 sizeof(FILE_FULL_DIRECTORY_INFORMATION), /* FileFullDirectoryInformation */
1489 sizeof(FILE_BOTH_DIRECTORY_INFORMATION), /* FileBothDirectoryInformation */
1490 sizeof(FILE_BASIC_INFORMATION), /* FileBasicInformation */
1491 sizeof(FILE_STANDARD_INFORMATION), /* FileStandardInformation */
1492 sizeof(FILE_INTERNAL_INFORMATION), /* FileInternalInformation */
1493 sizeof(FILE_EA_INFORMATION), /* FileEaInformation */
1494 sizeof(FILE_ACCESS_INFORMATION), /* FileAccessInformation */
1495 sizeof(FILE_NAME_INFORMATION)-sizeof(WCHAR), /* FileNameInformation */
1496 sizeof(FILE_RENAME_INFORMATION)-sizeof(WCHAR), /* FileRenameInformation */
1497 0, /* FileLinkInformation */
1498 sizeof(FILE_NAMES_INFORMATION)-sizeof(WCHAR), /* FileNamesInformation */
1499 sizeof(FILE_DISPOSITION_INFORMATION), /* FileDispositionInformation */
1500 sizeof(FILE_POSITION_INFORMATION), /* FilePositionInformation */
1501 sizeof(FILE_FULL_EA_INFORMATION), /* FileFullEaInformation */
1502 sizeof(FILE_MODE_INFORMATION), /* FileModeInformation */
1503 sizeof(FILE_ALIGNMENT_INFORMATION), /* FileAlignmentInformation */
1504 sizeof(FILE_ALL_INFORMATION)-sizeof(WCHAR), /* FileAllInformation */
1505 sizeof(FILE_ALLOCATION_INFORMATION), /* FileAllocationInformation */
1506 sizeof(FILE_END_OF_FILE_INFORMATION), /* FileEndOfFileInformation */
1507 0, /* FileAlternateNameInformation */
1508 sizeof(FILE_STREAM_INFORMATION)-sizeof(WCHAR), /* FileStreamInformation */
1509 0, /* FilePipeInformation */
1510 sizeof(FILE_PIPE_LOCAL_INFORMATION), /* FilePipeLocalInformation */
1511 0, /* FilePipeRemoteInformation */
1512 sizeof(FILE_MAILSLOT_QUERY_INFORMATION), /* FileMailslotQueryInformation */
1513 0, /* FileMailslotSetInformation */
1514 0, /* FileCompressionInformation */
1515 0, /* FileObjectIdInformation */
1516 0, /* FileCompletionInformation */
1517 0, /* FileMoveClusterInformation */
1518 0, /* FileQuotaInformation */
1519 0, /* FileReparsePointInformation */
1520 0, /* FileNetworkOpenInformation */
1521 0, /* FileAttributeTagInformation */
1522 0 /* FileTrackingInformation */
1523 };
1524
1525 struct stat st;
1526 int fd, needs_close = FALSE;
1527
1528 TRACE("(%p,%p,%p,0x%08x,0x%08x)\n", hFile, io, ptr, len, class);
1529
1530 io->Information = 0;
1531
1532 if (class <= 0 || class >= FileMaximumInformation)
1533 return io->u.Status = STATUS_INVALID_INFO_CLASS;
1534 if (!info_sizes[class])
1535 {
1536 FIXME("Unsupported class (%d)\n", class);
1537 return io->u.Status = STATUS_NOT_IMPLEMENTED;
1538 }
1539 if (len < info_sizes[class])
1540 return io->u.Status = STATUS_INFO_LENGTH_MISMATCH;
1541
1542 if (class != FilePipeLocalInformation)
1543 {
1544 if ((io->u.Status = server_get_unix_fd( hFile, 0, &fd, &needs_close, NULL, NULL )))
1545 return io->u.Status;
1546 }
1547
1548 switch (class)
1549 {
1550 case FileBasicInformation:
1551 {
1552 FILE_BASIC_INFORMATION *info = ptr;
1553
1554 if (fstat( fd, &st ) == -1)
1555 io->u.Status = FILE_GetNtStatus();
1556 else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
1557 io->u.Status = STATUS_INVALID_INFO_CLASS;
1558 else
1559 {
1560 if (S_ISDIR(st.st_mode)) info->FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
1561 else info->FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
1562 if (!(st.st_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
1563 info->FileAttributes |= FILE_ATTRIBUTE_READONLY;
1564 RtlSecondsSince1970ToTime( st.st_mtime, &info->CreationTime);
1565 RtlSecondsSince1970ToTime( st.st_mtime, &info->LastWriteTime);
1566 RtlSecondsSince1970ToTime( st.st_ctime, &info->ChangeTime);
1567 RtlSecondsSince1970ToTime( st.st_atime, &info->LastAccessTime);
1568 }
1569 }
1570 break;
1571 case FileStandardInformation:
1572 {
1573 FILE_STANDARD_INFORMATION *info = ptr;
1574
1575 if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
1576 else
1577 {
1578 if ((info->Directory = S_ISDIR(st.st_mode)))
1579 {
1580 info->AllocationSize.QuadPart = 0;
1581 info->EndOfFile.QuadPart = 0;
1582 info->NumberOfLinks = 1;
1583 info->DeletePending = FALSE;
1584 }
1585 else
1586 {
1587 info->AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
1588 info->EndOfFile.QuadPart = st.st_size;
1589 info->NumberOfLinks = st.st_nlink;
1590 info->DeletePending = FALSE; /* FIXME */
1591 }
1592 }
1593 }
1594 break;
1595 case FilePositionInformation:
1596 {
1597 FILE_POSITION_INFORMATION *info = ptr;
1598 off_t res = lseek( fd, 0, SEEK_CUR );
1599 if (res == (off_t)-1) io->u.Status = FILE_GetNtStatus();
1600 else info->CurrentByteOffset.QuadPart = res;
1601 }
1602 break;
1603 case FileInternalInformation:
1604 {
1605 FILE_INTERNAL_INFORMATION *info = ptr;
1606
1607 if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
1608 else info->IndexNumber.QuadPart = st.st_ino;
1609 }
1610 break;
1611 case FileEaInformation:
1612 {
1613 FILE_EA_INFORMATION *info = ptr;
1614 info->EaSize = 0;
1615 }
1616 break;
1617 case FileEndOfFileInformation:
1618 {
1619 FILE_END_OF_FILE_INFORMATION *info = ptr;
1620
1621 if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
1622 else info->EndOfFile.QuadPart = S_ISDIR(st.st_mode) ? 0 : st.st_size;
1623 }
1624 break;
1625 case FileAllInformation:
1626 {
1627 FILE_ALL_INFORMATION *info = ptr;
1628
1629 if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
1630 else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
1631 io->u.Status = STATUS_INVALID_INFO_CLASS;
1632 else
1633 {
1634 if ((info->StandardInformation.Directory = S_ISDIR(st.st_mode)))
1635 {
1636 info->BasicInformation.FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
1637 info->StandardInformation.AllocationSize.QuadPart = 0;
1638 info->StandardInformation.EndOfFile.QuadPart = 0;
1639 info->StandardInformation.NumberOfLinks = 1;
1640 info->StandardInformation.DeletePending = FALSE;
1641 }
1642 else
1643 {
1644 info->BasicInformation.FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
1645 info->StandardInformation.AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
1646 info->StandardInformation.EndOfFile.QuadPart = st.st_size;
1647 info->StandardInformation.NumberOfLinks = st.st_nlink;
1648 info->StandardInformation.DeletePending = FALSE; /* FIXME */
1649 }
1650 if (!(st.st_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
1651 info->BasicInformation.FileAttributes |= FILE_ATTRIBUTE_READONLY;
1652 RtlSecondsSince1970ToTime( st.st_mtime, &info->BasicInformation.CreationTime);
1653 RtlSecondsSince1970ToTime( st.st_mtime, &info->BasicInformation.LastWriteTime);
1654 RtlSecondsSince1970ToTime( st.st_ctime, &info->BasicInformation.ChangeTime);
1655 RtlSecondsSince1970ToTime( st.st_atime, &info->BasicInformation.LastAccessTime);
1656 info->InternalInformation.IndexNumber.QuadPart = st.st_ino;
1657 info->EaInformation.EaSize = 0;
1658 info->AccessInformation.AccessFlags = 0; /* FIXME */
1659 info->PositionInformation.CurrentByteOffset.QuadPart = lseek( fd, 0, SEEK_CUR );
1660 info->ModeInformation.Mode = 0; /* FIXME */
1661 info->AlignmentInformation.AlignmentRequirement = 1; /* FIXME */
1662 info->NameInformation.FileNameLength = 0;
1663 io->Information = sizeof(*info) - sizeof(WCHAR);
1664 }
1665 }
1666 break;
1667 case FileMailslotQueryInformation:
1668 {
1669 FILE_MAILSLOT_QUERY_INFORMATION *info = ptr;
1670
1671 SERVER_START_REQ( set_mailslot_info )
1672 {
1673 req->handle = hFile;
1674 req->flags = 0;
1675 io->u.Status = wine_server_call( req );
1676 if( io->u.Status == STATUS_SUCCESS )
1677 {
1678 info->MaximumMessageSize = reply->max_msgsize;
1679 info->MailslotQuota = 0;
1680 info->NextMessageSize = 0;
1681 info->MessagesAvailable = 0;
1682 info->ReadTimeout.QuadPart = reply->read_timeout;
1683 }
1684 }
1685 SERVER_END_REQ;
1686 if (!io->u.Status)
1687 {
1688 char *tmpbuf;
1689 ULONG size = info->MaximumMessageSize ? info->MaximumMessageSize : 0x10000;
1690 if (size > 0x10000) size = 0x10000;
1691 if ((tmpbuf = RtlAllocateHeap( GetProcessHeap(), 0, size )))
1692 {
1693 int fd, needs_close;
1694 if (!server_get_unix_fd( hFile, FILE_READ_DATA, &fd, &needs_close, NULL, NULL ))
1695 {
1696 int res = recv( fd, tmpbuf, size, MSG_PEEK );
1697 info->MessagesAvailable = (res > 0);
1698 info->NextMessageSize = (res >= 0) ? res : MAILSLOT_NO_MESSAGE;
1699 if (needs_close) close( fd );
1700 }
1701 RtlFreeHeap( GetProcessHeap(), 0, tmpbuf );
1702 }
1703 }
1704 }
1705 break;
1706 case FilePipeLocalInformation:
1707 {
1708 FILE_PIPE_LOCAL_INFORMATION* pli = ptr;
1709
1710 SERVER_START_REQ( get_named_pipe_info )
1711 {
1712 req->handle = hFile;
1713 if (!(io->u.Status = wine_server_call( req )))
1714 {
1715 pli->NamedPipeType = (reply->flags & NAMED_PIPE_MESSAGE_STREAM_WRITE) ?
1716 FILE_PIPE_TYPE_MESSAGE : FILE_PIPE_TYPE_BYTE;
1717 pli->NamedPipeConfiguration = 0; /* FIXME */
1718 pli->MaximumInstances = reply->maxinstances;
1719 pli->CurrentInstances = reply->instances;
1720 pli->InboundQuota = reply->insize;
1721 pli->ReadDataAvailable = 0; /* FIXME */
1722 pli->OutboundQuota = reply->outsize;
1723 pli->WriteQuotaAvailable = 0; /* FIXME */
1724 pli->NamedPipeState = 0; /* FIXME */
1725 pli->NamedPipeEnd = (reply->flags & NAMED_PIPE_SERVER_END) ?
1726 FILE_PIPE_SERVER_END : FILE_PIPE_CLIENT_END;
1727 }
1728 }
1729 SERVER_END_REQ;
1730 }
1731 break;
1732 default:
1733 FIXME("Unsupported class (%d)\n", class);
1734 io->u.Status = STATUS_NOT_IMPLEMENTED;
1735 break;
1736 }
1737 if (needs_close) close( fd );
1738 if (io->u.Status == STATUS_SUCCESS && !io->Information) io->Information = info_sizes[class];
1739 return io->u.Status;
1740 }
1741
1742 /******************************************************************************
1743 * NtSetInformationFile [NTDLL.@]
1744 * ZwSetInformationFile [NTDLL.@]
1745 *
1746 * Set information about an open file handle.
1747 *
1748 * PARAMS
1749 * handle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1750 * io [O] Receives information about the operation on return
1751 * ptr [I] Source for file information
1752 * len [I] Size of FileInformation
1753 * class [I] Type of file information to set
1754 *
1755 * RETURNS
1756 * Success: 0. io is updated.
1757 * Failure: An NTSTATUS error code describing the error.
1758 */
1759 NTSTATUS WINAPI NtSetInformationFile(HANDLE handle, PIO_STATUS_BLOCK io,
1760 PVOID ptr, ULONG len, FILE_INFORMATION_CLASS class)
1761 {
1762 int fd, needs_close;
1763
1764 TRACE("(%p,%p,%p,0x%08x,0x%08x)\n", handle, io, ptr, len, class);
1765
1766 io->u.Status = STATUS_SUCCESS;
1767 switch (class)
1768 {
1769 case FileBasicInformation:
1770 if (len >= sizeof(FILE_BASIC_INFORMATION))
1771 {
1772 struct stat st;
1773 const FILE_BASIC_INFORMATION *info = ptr;
1774
1775 if ((io->u.Status = server_get_unix_fd( handle, 0, &fd, &needs_close, NULL, NULL )))
1776 return io->u.Status;
1777
1778 if (info->LastAccessTime.QuadPart || info->LastWriteTime.QuadPart)
1779 {
1780 ULONGLONG sec, nsec;
1781 struct timeval tv[2];
1782
1783 if (!info->LastAccessTime.QuadPart || !info->LastWriteTime.QuadPart)
1784 {
1785
1786 tv[0].tv_sec = tv[0].tv_usec = 0;
1787 tv[1].tv_sec = tv[1].tv_usec = 0;
1788 if (!fstat( fd, &st ))
1789 {
1790 tv[0].tv_sec = st.st_atime;
1791 tv[1].tv_sec = st.st_mtime;
1792 }
1793 }
1794 if (info->LastAccessTime.QuadPart)
1795 {
1796 sec = RtlLargeIntegerDivide( info->LastAccessTime.QuadPart, 10000000, &nsec );
1797 tv[0].tv_sec = sec - SECS_1601_TO_1970;
1798 tv[0].tv_usec = (UINT)nsec / 10;
1799 }
1800 if (info->LastWriteTime.QuadPart)
1801 {
1802 sec = RtlLargeIntegerDivide( info->LastWriteTime.QuadPart, 10000000, &nsec );
1803 tv[1].tv_sec = sec - SECS_1601_TO_1970;
1804 tv[1].tv_usec = (UINT)nsec / 10;
1805 }
1806 if (futimes( fd, tv ) == -1) io->u.Status = FILE_GetNtStatus();
1807 }
1808
1809 if (io->u.Status == STATUS_SUCCESS && info->FileAttributes)
1810 {
1811 if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
1812 else
1813 {
1814 if (info->FileAttributes & FILE_ATTRIBUTE_READONLY)
1815 {
1816 if (S_ISDIR( st.st_mode))
1817 WARN("FILE_ATTRIBUTE_READONLY ignored for directory.\n");
1818 else
1819 st.st_mode &= ~0222; /* clear write permission bits */
1820 }
1821 else
1822 {
1823 /* add write permission only where we already have read permission */
1824 st.st_mode |= (0600 | ((st.st_mode & 044) >> 1)) & (~FILE_umask);
1825 }
1826 if (fchmod( fd, st.st_mode ) == -1) io->u.Status = FILE_GetNtStatus();
1827 }
1828 }
1829
1830 if (needs_close) close( fd );
1831 }
1832 else io->u.Status = STATUS_INVALID_PARAMETER_3;
1833 break;
1834
1835 case FilePositionInformation:
1836 if (len >= sizeof(FILE_POSITION_INFORMATION))
1837 {
1838 const FILE_POSITION_INFORMATION *info = ptr;
1839
1840 if ((io->u.Status = server_get_unix_fd( handle, 0, &fd, &needs_close, NULL, NULL )))
1841 return io->u.Status;
1842
1843 if (lseek( fd, info->CurrentByteOffset.QuadPart, SEEK_SET ) == (off_t)-1)
1844 io->u.Status = FILE_GetNtStatus();
1845
1846 if (needs_close) close( fd );
1847 }
1848 else io->u.Status = STATUS_INVALID_PARAMETER_3;
1849 break;
1850
1851 case FileEndOfFileInformation:
1852 if (len >= sizeof(FILE_END_OF_FILE_INFORMATION))
1853 {
1854 struct stat st;
1855 const FILE_END_OF_FILE_INFORMATION *info = ptr;
1856
1857 if ((io->u.Status = server_get_unix_fd( handle, 0, &fd, &needs_close, NULL, NULL )))
1858 return io->u.Status;
1859
1860 /* first try normal truncate */
1861 if (ftruncate( fd, (off_t)info->EndOfFile.QuadPart ) != -1) break;
1862
1863 /* now check for the need to extend the file */
1864 if (fstat( fd, &st ) != -1 && (off_t)info->EndOfFile.QuadPart > st.st_size)
1865 {
1866 static const char zero;
1867
1868 /* extend the file one byte beyond the requested size and then truncate it */
1869 /* this should work around ftruncate implementations that can't extend files */
1870 if (pwrite( fd, &zero, 1, (off_t)info->EndOfFile.QuadPart ) != -1 &&
1871 ftruncate( fd, (off_t)info->EndOfFile.QuadPart ) != -1) break;
1872 }
1873 io->u.Status = FILE_GetNtStatus();
1874
1875 if (needs_close) close( fd );
1876 }
1877 else io->u.Status = STATUS_INVALID_PARAMETER_3;
1878 break;
1879
1880 case FileMailslotSetInformation:
1881 {
1882 FILE_MAILSLOT_SET_INFORMATION *info = ptr;
1883
1884 SERVER_START_REQ( set_mailslot_info )
1885 {
1886 req->handle = handle;
1887 req->flags = MAILSLOT_SET_READ_TIMEOUT;
1888 req->read_timeout = info->ReadTimeout.QuadPart;
1889 io->u.Status = wine_server_call( req );
1890 }
1891 SERVER_END_REQ;
1892 }
1893 break;
1894
1895 case FileCompletionInformation:
1896 if (len >= sizeof(FILE_COMPLETION_INFORMATION))
1897 {
1898 FILE_COMPLETION_INFORMATION *info = (FILE_COMPLETION_INFORMATION *)ptr;
1899
1900 SERVER_START_REQ( set_completion_info )
1901 {
1902 req->handle = handle;
1903 req->chandle = info->CompletionPort;
1904 req->ckey = info->CompletionKey;
1905 io->u.Status = wine_server_call( req );
1906 }
1907 SERVER_END_REQ;
1908 } else
1909 io->u.Status = STATUS_INVALID_PARAMETER_3;
1910 break;
1911
1912 default:
1913 FIXME("Unsupported class (%d)\n", class);
1914 io->u.Status = STATUS_NOT_IMPLEMENTED;
1915 break;
1916 }
1917 io->Information = 0;
1918 return io->u.Status;
1919 }
1920
1921
1922 /******************************************************************************
1923 * NtQueryFullAttributesFile (NTDLL.@)
1924 */
1925 NTSTATUS WINAPI NtQueryFullAttributesFile( const OBJECT_ATTRIBUTES *attr,
1926 FILE_NETWORK_OPEN_INFORMATION *info )
1927 {
1928 ANSI_STRING unix_name;
1929 NTSTATUS status;
1930
1931 if (!(status = wine_nt_to_unix_file_name( attr->ObjectName, &unix_name, FILE_OPEN,
1932 !(attr->Attributes & OBJ_CASE_INSENSITIVE) )))
1933 {
1934 struct stat st;
1935
1936 if (stat( unix_name.Buffer, &st ) == -1)
1937 status = FILE_GetNtStatus();
1938 else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
1939 status = STATUS_INVALID_INFO_CLASS;
1940 else
1941 {
1942 if (S_ISDIR(st.st_mode))
1943 {
1944 info->FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
1945 info->AllocationSize.QuadPart = 0;
1946 info->EndOfFile.QuadPart = 0;
1947 }
1948 else
1949 {
1950 info->FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
1951 info->AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
1952 info->EndOfFile.QuadPart = st.st_size;
1953 }
1954 if (!(st.st_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
1955 info->FileAttributes |= FILE_ATTRIBUTE_READONLY;
1956 RtlSecondsSince1970ToTime( st.st_mtime, &info->CreationTime );
1957 RtlSecondsSince1970ToTime( st.st_mtime, &info->LastWriteTime );
1958 RtlSecondsSince1970ToTime( st.st_ctime, &info->ChangeTime );
1959 RtlSecondsSince1970ToTime( st.st_atime, &info->LastAccessTime );
1960 if (DIR_is_hidden_file( attr->ObjectName ))
1961 info->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
1962 }
1963 RtlFreeAnsiString( &unix_name );
1964 }
1965 else WARN("%s not found (%x)\n", debugstr_us(attr->ObjectName), status );
1966 return status;
1967 }
1968
1969
1970 /******************************************************************************
1971 * NtQueryAttributesFile (NTDLL.@)
1972 * ZwQueryAttributesFile (NTDLL.@)
1973 */
1974 NTSTATUS WINAPI NtQueryAttributesFile( const OBJECT_ATTRIBUTES *attr, FILE_BASIC_INFORMATION *info )
1975 {
1976 FILE_NETWORK_OPEN_INFORMATION full_info;
1977 NTSTATUS status;
1978
1979 if (!(status = NtQueryFullAttributesFile( attr, &full_info )))
1980 {
1981 info->CreationTime.QuadPart = full_info.CreationTime.QuadPart;
1982 info->LastAccessTime.QuadPart = full_info.LastAccessTime.QuadPart;
1983 info->LastWriteTime.QuadPart = full_info.LastWriteTime.QuadPart;
1984 info->ChangeTime.QuadPart = full_info.ChangeTime.QuadPart;
1985 info->FileAttributes = full_info.FileAttributes;
1986 }
1987 return status;
1988 }
1989
1990
1991 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__APPLE__)
1992 /* helper for FILE_GetDeviceInfo to hide some platform differences in fstatfs */
1993 static inline void get_device_info_fstatfs( FILE_FS_DEVICE_INFORMATION *info, const char *fstypename,
1994 unsigned int flags )
1995 {
1996 if (!strcmp("cd9660", fstypename) || !strcmp("udf", fstypename))
1997 {
1998 info->DeviceType = FILE_DEVICE_CD_ROM_FILE_SYSTEM;
1999 /* Don't assume read-only, let the mount options set it below */
2000 info->Characteristics |= FILE_REMOVABLE_MEDIA;
2001 }
2002 else if (!strcmp("nfs", fstypename) || !strcmp("nwfs", fstypename) ||
2003 !strcmp("smbfs", fstypename) || !strcmp("afpfs", fstypename))
2004 {
2005 info->DeviceType = FILE_DEVICE_NETWORK_FILE_SYSTEM;
2006 info->Characteristics |= FILE_REMOTE_DEVICE;
2007 }
2008 else if (!strcmp("procfs", fstypename))
2009 info->DeviceType = FILE_DEVICE_VIRTUAL_DISK;
2010 else
2011 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
2012
2013 if (flags & MNT_RDONLY)
2014 info->Characteristics |= FILE_READ_ONLY_DEVICE;
2015
2016 if (!(flags & MNT_LOCAL))
2017 {
2018 info->DeviceType = FILE_DEVICE_NETWORK_FILE_SYSTEM;
2019 info->Characteristics |= FILE_REMOTE_DEVICE;
2020 }
2021 }
2022 #endif
2023
2024 static inline int is_device_placeholder( int fd )
2025 {
2026 static const char wine_placeholder[] = "Wine device placeholder";
2027 char buffer[sizeof(wine_placeholder)-1];
2028
2029 if (pread( fd, buffer, sizeof(wine_placeholder) - 1, 0 ) != sizeof(wine_placeholder) - 1)
2030 return 0;
2031 return !memcmp( buffer, wine_placeholder, sizeof(wine_placeholder) - 1 );
2032 }
2033
2034 /******************************************************************************
2035 * get_device_info
2036 *
2037 * Implementation of the FileFsDeviceInformation query for NtQueryVolumeInformationFile.
2038 */
2039 static NTSTATUS get_device_info( int fd, FILE_FS_DEVICE_INFORMATION *info )
2040 {
2041 struct stat st;
2042
2043 info->Characteristics = 0;
2044 if (fstat( fd, &st ) < 0) return FILE_GetNtStatus();
2045 if (S_ISCHR( st.st_mode ))
2046 {
2047 info->DeviceType = FILE_DEVICE_UNKNOWN;
2048 #ifdef linux
2049 switch(major(st.st_rdev))
2050 {
2051 case MEM_MAJOR:
2052 info->DeviceType = FILE_DEVICE_NULL;
2053 break;
2054 case TTY_MAJOR:
2055 info->DeviceType = FILE_DEVICE_SERIAL_PORT;
2056 break;
2057 case LP_MAJOR:
2058 info->DeviceType = FILE_DEVICE_PARALLEL_PORT;
2059 break;
2060 case SCSI_TAPE_MAJOR:
2061 info->DeviceType = FILE_DEVICE_TAPE;
2062 break;
2063 }
2064 #endif
2065 }
2066 else if (S_ISBLK( st.st_mode ))
2067 {
2068 info->DeviceType = FILE_DEVICE_DISK;
2069 }
2070 else if (S_ISFIFO( st.st_mode ) || S_ISSOCK( st.st_mode ))
2071 {
2072 info->DeviceType = FILE_DEVICE_NAMED_PIPE;
2073 }
2074 else if (is_device_placeholder( fd ))
2075 {
2076 info->DeviceType = FILE_DEVICE_DISK;
2077 }
2078 else /* regular file or directory */
2079 {
2080 #if defined(linux) && defined(HAVE_FSTATFS)
2081 struct statfs stfs;
2082
2083 /* check for floppy disk */
2084 if (major(st.st_dev) == FLOPPY_MAJOR)
2085 info->Characteristics |= FILE_REMOVABLE_MEDIA;
2086
2087 if (fstatfs( fd, &stfs ) < 0) stfs.f_type = 0;
2088 switch (stfs.f_type)
2089 {
2090 case 0x9660: /* iso9660 */
2091 case 0x9fa1: /* supermount */
2092 case 0x15013346: /* udf */
2093 info->DeviceType = FILE_DEVICE_CD_ROM_FILE_SYSTEM;
2094 info->Characteristics |= FILE_REMOVABLE_MEDIA|FILE_READ_ONLY_DEVICE;
2095 break;
2096 case 0x6969: /* nfs */
2097 case 0x517B: /* smbfs */
2098 case 0x564c: /* ncpfs */
2099 info->DeviceType = FILE_DEVICE_NETWORK_FILE_SYSTEM;
2100 info->Characteristics |= FILE_REMOTE_DEVICE;
2101 break;
2102 case 0x01021994: /* tmpfs */
2103 case 0x28cd3d45: /* cramfs */
2104 case 0x1373: /* devfs */
2105 case 0x9fa0: /* procfs */
2106 info->DeviceType = FILE_DEVICE_VIRTUAL_DISK;
2107 break;
2108 default:
2109 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
2110 break;
2111 }
2112 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__APPLE__)
2113 struct statfs stfs;
2114
2115 if (fstatfs( fd, &stfs ) < 0)
2116 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
2117 else
2118 get_device_info_fstatfs( info, stfs.f_fstypename, stfs.f_flags );
2119 #elif defined(__NetBSD__)
2120 struct statvfs stfs;
2121
2122 if (fstatvfs( fd, &stfs) < 0)
2123 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
2124 else
2125 get_device_info_fstatfs( info, stfs.f_fstypename, stfs.f_flag );
2126 #elif defined(sun)
2127 /* Use dkio to work out device types */
2128 {
2129 # include <sys/dkio.h>
2130 # include <sys/vtoc.h>
2131 struct dk_cinfo dkinf;
2132 int retval = ioctl(fd, DKIOCINFO, &dkinf);
2133 if(retval==-1){
2134 WARN("Unable to get disk device type information - assuming a disk like device\n");
2135 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
2136 }
2137 switch (dkinf.dki_ctype)
2138 {
2139 case DKC_CDROM:
2140 info->DeviceType = FILE_DEVICE_CD_ROM_FILE_SYSTEM;
2141 info->Characteristics |= FILE_REMOVABLE_MEDIA|FILE_READ_ONLY_DEVICE;
2142 break;
2143 case DKC_NCRFLOPPY:
2144 case DKC_SMSFLOPPY:
2145 case DKC_INTEL82072:
2146 case DKC_INTEL82077:
2147 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
2148 info->Characteristics |= FILE_REMOVABLE_MEDIA;
2149 break;
2150 case DKC_MD:
2151 info->DeviceType = FILE_DEVICE_VIRTUAL_DISK;
2152 break;
2153 default:
2154 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
2155 }
2156 }
2157 #else
2158 static int warned;
2159 if (!warned++) FIXME( "device info not properly supported on this platform\n" );
2160 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
2161 #endif
2162 info->Characteristics |= FILE_DEVICE_IS_MOUNTED;
2163 }
2164 return STATUS_SUCCESS;
2165 }
2166
2167
2168 /******************************************************************************
2169 * NtQueryVolumeInformationFile [NTDLL.@]
2170 * ZwQueryVolumeInformationFile [NTDLL.@]
2171 *
2172 * Get volume information for an open file handle.
2173 *
2174 * PARAMS
2175 * handle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
2176 * io [O] Receives information about the operation on return
2177 * buffer [O] Destination for volume information
2178 * length [I] Size of FsInformation
2179 * info_class [I] Type of volume information to set
2180 *
2181 * RETURNS
2182 * Success: 0. io and buffer are updated.
2183 * Failure: An NTSTATUS error code describing the error.
2184 */
2185 NTSTATUS WINAPI NtQueryVolumeInformationFile( HANDLE handle, PIO_STATUS_BLOCK io,
2186 PVOID buffer, ULONG length,
2187 FS_INFORMATION_CLASS info_class )
2188 {
2189 int fd, needs_close;
2190 struct stat st;
2191
2192 if ((io->u.Status = server_get_unix_fd( handle, 0, &fd, &needs_close, NULL, NULL )) != STATUS_SUCCESS)
2193 return io->u.Status;
2194
2195 io->u.Status = STATUS_NOT_IMPLEMENTED;
2196 io->Information = 0;
2197
2198 switch( info_class )
2199 {
2200 case FileFsVolumeInformation:
2201 FIXME( "%p: volume info not supported\n", handle );
2202 break;
2203 case FileFsLabelInformation:
2204 FIXME( "%p: label info not supported\n", handle );
2205 break;
2206 case FileFsSizeInformation:
2207 if (length < sizeof(FILE_FS_SIZE_INFORMATION))
2208 io->u.Status = STATUS_BUFFER_TOO_SMALL;
2209 else
2210 {
2211 FILE_FS_SIZE_INFORMATION *info = buffer;
2212
2213 if (fstat( fd, &st ) < 0)
2214 {
2215 io->u.Status = FILE_GetNtStatus();
2216 break;
2217 }
2218 if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
2219 {
2220 io->u.Status = STATUS_INVALID_DEVICE_REQUEST;
2221 }
2222 else
2223 {
2224 /* Linux's fstatvfs is buggy */
2225 #if !defined(linux) || !defined(HAVE_FSTATFS)
2226 struct statvfs stfs;
2227
2228 if (fstatvfs( fd, &stfs ) < 0)
2229 {
2230 io->u.Status = FILE_GetNtStatus();
2231 break;
2232 }
2233 info->BytesPerSector = stfs.f_frsize;
2234 #else
2235 struct statfs stfs;
2236 if (fstatfs( fd, &stfs ) < 0)
2237 {
2238 io->u.Status = FILE_GetNtStatus();
2239 break;
2240 }
2241 info->BytesPerSector = stfs.f_bsize;
2242 #endif
2243 info->TotalAllocationUnits.QuadPart = stfs.f_blocks;
2244 info->AvailableAllocationUnits.QuadPart = stfs.f_bavail;
2245 info->SectorsPerAllocationUnit = 1;
2246 io->Information = sizeof(*info);
2247 io->u.Status = STATUS_SUCCESS;
2248 }
2249 }
2250 break;
2251 case FileFsDeviceInformation:
2252 if (length < sizeof(FILE_FS_DEVICE_INFORMATION))
2253 io->u.Status = STATUS_BUFFER_TOO_SMALL;
2254 else
2255 {
2256 FILE_FS_DEVICE_INFORMATION *info = buffer;
2257
2258 if ((io->u.Status = get_device_info( fd, info )) == STATUS_SUCCESS)
2259 io->Information = sizeof(*info);
2260 }
2261 break;
2262 case FileFsAttributeInformation:
2263 FIXME( "%p: attribute info not supported\n", handle );
2264 break;
2265 case FileFsControlInformation:
2266 FIXME( "%p: control info not supported\n", handle );
2267 break;
2268 case FileFsFullSizeInformation:
2269 FIXME( "%p: full size info not supported\n", handle );
2270 break;
2271 case FileFsObjectIdInformation:
2272 FIXME( "%p: object id info not supported\n", handle );
2273 break;
2274 case FileFsMaximumInformation:
2275 FIXME( "%p: maximum info not supported\n", handle );
2276 break;
2277 default:
2278 io->u.Status = STATUS_INVALID_PARAMETER;
2279 break;
2280 }
2281 if (needs_close) close( fd );
2282 return io->u.Status;
2283 }
2284
2285
2286 /******************************************************************
2287 * NtFlushBuffersFile (NTDLL.@)
2288 *
2289 * Flush any buffered data on an open file handle.
2290 *
2291 * PARAMS
2292 * FileHandle [I] Handle returned from ZwOpenFile() or ZwCreateFile()
2293 * IoStatusBlock [O] Receives information about the operation on return
2294 *
2295 * RETURNS
2296 * Success: 0. IoStatusBlock is updated.
2297 * Failure: An NTSTATUS error code describing the error.
2298 */
2299 NTSTATUS WINAPI NtFlushBuffersFile( HANDLE hFile, IO_STATUS_BLOCK* IoStatusBlock )
2300 {
2301 NTSTATUS ret;
2302 HANDLE hEvent = NULL;
2303
2304 SERVER_START_REQ( flush_file )
2305 {
2306 req->handle = hFile;
2307 ret = wine_server_call( req );
2308 hEvent = reply->event;
2309 }
2310 SERVER_END_REQ;
2311 if (!ret && hEvent)
2312 {
2313 ret = NtWaitForSingleObject( hEvent, FALSE, NULL );
2314 NtClose( hEvent );
2315 }
2316 return ret;
2317 }
2318
2319 /******************************************************************
2320 * NtLockFile (NTDLL.@)
2321 *
2322 *
2323 */
2324 NTSTATUS WINAPI NtLockFile( HANDLE hFile, HANDLE lock_granted_event,
2325 PIO_APC_ROUTINE apc, void* apc_user,
2326 PIO_STATUS_BLOCK io_status, PLARGE_INTEGER offset,
2327 PLARGE_INTEGER count, ULONG* key, BOOLEAN dont_wait,
2328 BOOLEAN exclusive )
2329 {
2330 NTSTATUS ret;
2331 HANDLE handle;
2332 BOOLEAN async;
2333
2334 if (apc || io_status || key)
2335 {
2336 FIXME("Unimplemented yet parameter\n");
2337 return STATUS_NOT_IMPLEMENTED;
2338 }
2339
2340 if (apc_user) FIXME("I/O completion on lock not implemented yet\n");
2341
2342 for (;;)
2343 {
2344 SERVER_START_REQ( lock_file )
2345 {
2346 req->handle = hFile;
2347 req->offset = offset->QuadPart;
2348 req->count = count->QuadPart;
2349 req->shared = !exclusive;
2350 req->wait = !dont_wait;
2351 ret = wine_server_call( req );
2352 handle = reply->handle;
2353 async = reply->overlapped;
2354 }
2355 SERVER_END_REQ;
2356 if (ret != STATUS_PENDING)
2357 {
2358 if (!ret && lock_granted_event) NtSetEvent(lock_granted_event, NULL);
2359 return ret;
2360 }
2361
2362 if (async)
2363 {
2364 FIXME( "Async I/O lock wait not implemented, might deadlock\n" );
2365 if (handle) NtClose( handle );
2366 return STATUS_PENDING;
2367 }
2368 if (handle)
2369 {
2370 NtWaitForSingleObject( handle, FALSE, NULL );
2371 NtClose( handle );
2372 }
2373 else
2374 {
2375 LARGE_INTEGER time;
2376
2377 /* Unix lock conflict, sleep a bit and retry */
2378 time.QuadPart = 100 * (ULONGLONG)10000;
2379 time.QuadPart = -time.QuadPart;
2380 NtDelayExecution( FALSE, &time );
2381 }
2382 }
2383 }
2384
2385
2386 /******************************************************************
2387 * NtUnlockFile (NTDLL.@)
2388 *
2389 *
2390 */
2391 NTSTATUS WINAPI NtUnlockFile( HANDLE hFile, PIO_STATUS_BLOCK io_status,
2392 PLARGE_INTEGER offset, PLARGE_INTEGER count,
2393 PULONG key )
2394 {
2395 NTSTATUS status;
2396
2397 TRACE( "%p %x%08x %x%08x\n",
2398 hFile, offset->u.HighPart, offset->u.LowPart, count->u.HighPart, count->u.LowPart );
2399
2400 if (io_status || key)
2401 {
2402 FIXME("Unimplemented yet parameter\n");
2403 return STATUS_NOT_IMPLEMENTED;
2404 }
2405
2406 SERVER_START_REQ( unlock_file )
2407 {
2408 req->handle = hFile;
2409 req->offset = offset->QuadPart;
2410 req->count = count->QuadPart;
2411 status = wine_server_call( req );
2412 }
2413 SERVER_END_REQ;
2414 return status;
2415 }
2416
2417 /******************************************************************
2418 * NtCreateNamedPipeFile (NTDLL.@)
2419 *
2420 *
2421 */
2422 NTSTATUS WINAPI NtCreateNamedPipeFile( PHANDLE handle, ULONG access,
2423 POBJECT_ATTRIBUTES attr, PIO_STATUS_BLOCK iosb,
2424 ULONG sharing, ULONG dispo, ULONG options,
2425 ULONG pipe_type, ULONG read_mode,
2426 ULONG completion_mode, ULONG max_inst,
2427 ULONG inbound_quota, ULONG outbound_quota,
2428 PLARGE_INTEGER timeout)
2429 {
2430 NTSTATUS status;
2431
2432 TRACE("(%p %x %s %p %x %d %x %d %d %d %d %d %d %p)\n",
2433 handle, access, debugstr_w(attr->ObjectName->Buffer), iosb, sharing, dispo,
2434 options, pipe_type, read_mode, completion_mode, max_inst, inbound_quota,
2435 outbound_quota, timeout);
2436
2437 /* assume we only get relative timeout */
2438 if (timeout->QuadPart > 0)
2439 FIXME("Wrong time %s\n", wine_dbgstr_longlong(timeout->QuadPart));
2440
2441 SERVER_START_REQ( create_named_pipe )
2442 {
2443 req->access = access;
2444 req->attributes = attr->Attributes;
2445 req->rootdir = attr->RootDirectory;
2446 req->options = options;
2447 req->flags =
2448 (pipe_type) ? NAMED_PIPE_MESSAGE_STREAM_WRITE : 0 |
2449 (read_mode) ? NAMED_PIPE_MESSAGE_STREAM_READ : 0 |
2450 (completion_mode) ? NAMED_PIPE_NONBLOCKING_MODE : 0;
2451 req->maxinstances = max_inst;
2452 req->outsize = outbound_quota;
2453 req->insize = inbound_quota;
2454 req->timeout = timeout->QuadPart;
2455 wine_server_add_data( req, attr->ObjectName->Buffer,
2456 attr->ObjectName->Length );
2457 status = wine_server_call( req );
2458 if (!status) *handle = reply->handle;
2459 }
2460 SERVER_END_REQ;
2461 return status;
2462 }
2463
2464 /******************************************************************
2465 * NtDeleteFile (NTDLL.@)
2466 *
2467 *
2468 */
2469 NTSTATUS WINAPI NtDeleteFile( POBJECT_ATTRIBUTES ObjectAttributes )
2470 {
2471 NTSTATUS status;
2472 HANDLE hFile;
2473 IO_STATUS_BLOCK io;
2474
2475 TRACE("%p\n", ObjectAttributes);
2476 status = NtCreateFile( &hFile, GENERIC_READ | GENERIC_WRITE | DELETE,
2477 ObjectAttributes, &io, NULL, 0,
2478 FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
2479 FILE_OPEN, FILE_DELETE_ON_CLOSE, NULL, 0 );
2480 if (status == STATUS_SUCCESS) status = NtClose(hFile);
2481 return status;
2482 }
2483
2484 /******************************************************************
2485 * NtCancelIoFile (NTDLL.@)
2486 *
2487 *
2488 */
2489 NTSTATUS WINAPI NtCancelIoFile( HANDLE hFile, PIO_STATUS_BLOCK io_status )
2490 {
2491 LARGE_INTEGER timeout;
2492
2493 TRACE("%p %p\n", hFile, io_status );
2494
2495 SERVER_START_REQ( cancel_async )
2496 {
2497 req->handle = hFile;
2498 wine_server_call( req );
2499 }
2500 SERVER_END_REQ;
2501 /* Let some APC be run, so that we can run the remaining APCs on hFile
2502 * either the cancelation of the pending one, but also the execution
2503 * of the queued APC, but not yet run. This is needed to ensure proper
2504 * clean-up of allocated data.
2505 */
2506 timeout.u.LowPart = timeout.u.HighPart = 0;
2507 return io_status->u.Status = NtDelayExecution( TRUE, &timeout );
2508 }
2509
2510 /******************************************************************************
2511 * NtCreateMailslotFile [NTDLL.@]
2512 * ZwCreateMailslotFile [NTDLL.@]
2513 *
2514 * PARAMS
2515 * pHandle [O] pointer to receive the handle created
2516 * DesiredAccess [I] access mode (read, write, etc)
2517 * ObjectAttributes [I] fully qualified NT path of the mailslot
2518 * IoStatusBlock [O] receives completion status and other info
2519 * CreateOptions [I]
2520 * MailslotQuota [I]
2521 * MaxMessageSize [I]
2522 * TimeOut [I]
2523 *
2524 * RETURNS
2525 * An NT status code
2526 */
2527 NTSTATUS WINAPI NtCreateMailslotFile(PHANDLE pHandle, ULONG DesiredAccess,
2528 POBJECT_ATTRIBUTES attr, PIO_STATUS_BLOCK IoStatusBlock,
2529 ULONG CreateOptions, ULONG MailslotQuota, ULONG MaxMessageSize,
2530 PLARGE_INTEGER TimeOut)
2531 {
2532 LARGE_INTEGER timeout;
2533 NTSTATUS ret;
2534
2535 TRACE("%p %08x %p %p %08x %08x %08x %p\n",
2536 pHandle, DesiredAccess, attr, IoStatusBlock,
2537 CreateOptions, MailslotQuota, MaxMessageSize, TimeOut);
2538
2539 if (!pHandle) return STATUS_ACCESS_VIOLATION;
2540 if (!attr) return STATUS_INVALID_PARAMETER;
2541 if (!attr->ObjectName) return STATUS_OBJECT_PATH_SYNTAX_BAD;
2542
2543 /*
2544 * For a NULL TimeOut pointer set the default timeout value
2545 */
2546 if (!TimeOut)
2547 timeout.QuadPart = -1;
2548 else
2549 timeout.QuadPart = TimeOut->QuadPart;
2550
2551 SERVER_START_REQ( create_mailslot )
2552 {
2553 req->access = DesiredAccess;
2554 req->attributes = attr->Attributes;
2555 req->rootdir = attr->RootDirectory;
2556 req->max_msgsize = MaxMessageSize;
2557 req->read_timeout = timeout.QuadPart;
2558 wine_server_add_data( req, attr->ObjectName->Buffer,
2559 attr->ObjectName->Length );
2560 ret = wine_server_call( req );
2561 if( ret == STATUS_SUCCESS )
2562 *pHandle = reply->handle;
2563 }
2564 SERVER_END_REQ;
2565
2566 return ret;
2567 }
useful hacks and other patches not (yet) suitable for mainline