summaryrefslogtreecommitdiff
path: root/source3/smbwrapper/wrapped.c
blob: d8a6a6fdac8f66612b7db34ad9728a7211d63b9c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
/* 
   Unix SMB/Netbios implementation.
   Version 2.0
   SMB wrapper functions
   Copyright (C) Andrew Tridgell 1998
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/


#include "wrapper.h"

#ifdef linux
__asm__(".globl __open; __open = open");
#endif

 int open(const char *name, int flags, mode_t mode)
{
	if (smbw_path(name)) {
		return smbw_open(name, flags, mode);
	}

	return real_open(name, flags, mode);
}


#ifdef linux
__asm__(".globl __chdir; __chdir = chdir");
#endif

 int chdir(const char *name)
{
	return smbw_chdir(name);
}



#ifdef linux
__asm__(".globl __close; __close = close");
#endif

 ssize_t close(int fd)
{
	if (smbw_fd(fd)) {
		return smbw_close(fd);
	}

	return real_close(fd);
}


#ifdef linux
__asm__(".globl __fchdir; __fchdir = fchdir");
#endif

 int fchdir(int fd)
{
	if (smbw_fd(fd)) {
		return smbw_fchdir(fd);
	}

	return real_fchdir(fd);
}


#ifdef linux
__asm__(".globl __fcntl; __fcntl = fcntl");
#endif

 int fcntl(int fd, int cmd, long arg)
{
	if (smbw_fd(fd)) {
		return smbw_fcntl(fd, cmd, arg);
	}

	return real_fcntl(fd, cmd, arg);
}



#ifdef linux
__asm__(".globl __getdents; __getdents = getdents");
#endif

 int getdents(int fd, struct dirent *dirp, unsigned int count)
{
	if (smbw_fd(fd)) {
		return smbw_getdents(fd, dirp, count);
	}

	return real_getdents(fd, dirp, count);
}


#ifdef linux
__asm__(".globl __lseek; __lseek = lseek");
#endif

 ssize_t lseek(int fd, off_t offset, int whence)
{
	if (smbw_fd(fd)) {
		return smbw_lseek(fd, offset, whence);
	}

	return real_lseek(fd, offset, whence);
}



#ifdef linux
__asm__(".globl __read; __read = read");
#endif

 ssize_t read(int fd, void *buf, size_t count)
{
	if (smbw_fd(fd)) {
		return smbw_read(fd, buf, count);
	}

	return real_read(fd, buf, count);
}


#ifdef linux
__asm__(".globl __write; __write = write");
#endif

 ssize_t write(int fd, void *buf, size_t count)
{
	if (smbw_fd(fd)) {
		return smbw_write(fd, buf, count);
	}

	return real_write(fd, buf, count);
}


 int access(const char *name, int mode)
{
	if (smbw_path(name)) {
		return smbw_access(name, mode);
	}

	return real_access(name, mode);
}



 int chmod(const char *name,mode_t mode)
{
	if (smbw_path(name)) {
		return smbw_chmod(name, mode);
	}

	return real_chmod(name, mode);
}



 int chown(const char *name,uid_t owner, gid_t group)
{
	if (smbw_path(name)) {
		return smbw_chown(name, owner, group);
	}

	return real_chown(name, owner, group);
}

#ifdef LINUX
 int __fxstat(int vers, int fd, struct stat *st)
{
	struct kernel_stat kbuf;
	int ret;

	if (smbw_fd(fd)) {
		return smbw_fstat(fd, st);
	}

	switch (vers) {
	case _STAT_VER_LINUX_OLD:
		/* Nothing to do.  The struct is in the form the kernel expects
		   it to be.  */
		return real_fstat(fd, (struct kernel_stat *)st);
		break;

	case _STAT_VER_LINUX:
		/* Do the system call.  */
		ret = real_fstat(fd, &kbuf);

		st->st_dev = kbuf.st_dev;
#ifdef _HAVE___PAD1
		st->__pad1 = 0;
#endif
		st->st_ino = kbuf.st_ino;
		st->st_mode = kbuf.st_mode;
		st->st_nlink = kbuf.st_nlink;
		st->st_uid = kbuf.st_uid;
		st->st_gid = kbuf.st_gid;
		st->st_rdev = kbuf.st_rdev;
#ifdef _HAVE___PAD2
		st->__pad2 = 0;
#endif
		st->st_size = kbuf.st_size;
		st->st_blksize = kbuf.st_blksize;
		st->st_blocks = kbuf.st_blocks;
		st->st_atime = kbuf.st_atime;
#ifdef _HAVE___UNUSED1
		st->__unused1 = 0;
#endif
		st->st_mtime = kbuf.st_mtime;
#ifdef _HAVE___UNUSED2
		st->__unused2 = 0;
#endif
		st->st_ctime = kbuf.st_ctime;
#ifdef _HAVE___UNUSED3
		st->__unused3 = 0;
#endif
#ifdef _HAVE___UNUSED4
		st->__unused4 = 0;
#endif
#ifdef _HAVE___UNUSED5
		st->__unused5 = 0;
#endif
		return ret;

	default:
		errno = EINVAL;
		return -1;
	}
}
#endif


 char *getcwd(char *buf, size_t size)
{
	return smbw_getcwd(buf, size);
}


#ifdef LINUX
 int __lxstat(int vers, const char *name, struct stat *st)
{
	struct kernel_stat kbuf;
	int ret;

	if (smbw_path(name)) {
		return smbw_stat(name, st);
	}

	switch (vers) {
	case _STAT_VER_LINUX_OLD:
		/* Nothing to do.  The struct is in the form the kernel expects
		   it to be.  */
		return real_lstat(name, (struct kernel_stat *)st);
		break;

	case _STAT_VER_LINUX:
		/* Do the system call.  */
		ret = real_lstat(name, &kbuf);

		st->st_dev = kbuf.st_dev;
#ifdef _HAVE___PAD1
		st->__pad1 = 0;
#endif
		st->st_ino = kbuf.st_ino;
		st->st_mode = kbuf.st_mode;
		st->st_nlink = kbuf.st_nlink;
		st->st_uid = kbuf.st_uid;
		st->st_gid = kbuf.st_gid;
		st->st_rdev = kbuf.st_rdev;
#ifdef _HAVE___PAD2
		st->__pad2 = 0;
#endif
		st->st_size = kbuf.st_size;
		st->st_blksize = kbuf.st_blksize;
		st->st_blocks = kbuf.st_blocks;
		st->st_atime = kbuf.st_atime;
#ifdef _HAVE___UNUSED1
		st->__unused1 = 0;
#endif
		st->st_mtime = kbuf.st_mtime;
#ifdef _HAVE___UNUSED2
		st->__unused2 = 0;
#endif
		st->st_ctime = kbuf.st_ctime;
#ifdef _HAVE___UNUSED3
		st->__unused3 = 0;
#endif
#ifdef _HAVE___UNUSED4
		st->__unused4 = 0;
#endif
#ifdef _HAVE___UNUSED5
		st->__unused5 = 0;
#endif
		return ret;

	default:
		errno = EINVAL;
		return -1;
	}
}
#endif


 int mkdir(const char *name, mode_t mode)
{
	if (smbw_path(name)) {
		return smbw_mkdir(name, mode);
	}

	return real_mkdir(name, mode);
}


#ifdef LINUX
 int __xstat(int vers, const char *name, struct stat *st)
{
	struct kernel_stat kbuf;
	int ret;

	if (smbw_path(name)) {
		return smbw_stat(name, st);
	}

	switch (vers) {
	case _STAT_VER_LINUX_OLD:
		/* Nothing to do.  The struct is in the form the kernel expects
		   it to be.  */
		return real_stat(name, (struct kernel_stat *)st);
		break;

	case _STAT_VER_LINUX:
		/* Do the system call.  */
		ret = real_stat(name, &kbuf);

		st->st_dev = kbuf.st_dev;
#ifdef _HAVE___PAD1
		st->__pad1 = 0;
#endif
		st->st_ino = kbuf.st_ino;
		st->st_mode = kbuf.st_mode;
		st->st_nlink = kbuf.st_nlink;
		st->st_uid = kbuf.st_uid;
		st->st_gid = kbuf.st_gid;
		st->st_rdev = kbuf.st_rdev;
#ifdef _HAVE___PAD2
		st->__pad2 = 0;
#endif
		st->st_size = kbuf.st_size;
		st->st_blksize = kbuf.st_blksize;
		st->st_blocks = kbuf.st_blocks;
		st->st_atime = kbuf.st_atime;
#ifdef _HAVE___UNUSED1
		st->__unused1 = 0;
#endif
		st->st_mtime = kbuf.st_mtime;
#ifdef _HAVE___UNUSED2
		st->__unused2 = 0;
#endif
		st->st_ctime = kbuf.st_ctime;
#ifdef _HAVE___UNUSED3
		st->__unused3 = 0;
#endif
#ifdef _HAVE___UNUSED4
		st->__unused4 = 0;
#endif
#ifdef _HAVE___UNUSED5
		st->__unused5 = 0;
#endif
		return ret;

	default:
		errno = EINVAL;
		return -1;
	}
}
#endif

 int stat(const char *name, struct stat *st)
{
#if HAVE___XSTAT
	return __xstat(_STAT_VER, name, st);
#else
	if (smbw_path(name)) {
		return smbw_stat(name, st);
	}
	return real_stat(name, st);
#endif
}

 int lstat(const char *name, struct stat *st)
{
#if HAVE___LXSTAT
	return __lxstat(_STAT_VER, name, st);
#else
	if (smbw_path(name)) {
		return smbw_stat(name, st);
	}
	return real_lstat(name, st);
#endif
}

 int fstat(int fd, struct stat *st)
{
#if HAVE___LXSTAT
	return __fxstat(_STAT_VER, fd, st);
#else
	if (smbw_fd(fd)) {
		return smbw_fstat(fd, st);
	}
	return real_fstat(fd, st);
#endif
}


 int unlink(const char *name)
{
	if (smbw_path(name)) {
		return smbw_unlink(name);
	}

	return real_unlink(name);
}


 int utime(const char *name,void *tvp)
{
	if (smbw_path(name)) {
		return smbw_utime(name, tvp);
	}

	return real_utime(name, tvp);
}

 int readlink(char *path, char *buf, size_t bufsize)
{
	if (smbw_path(path)) {
		return smbw_readlink(path, buf, bufsize);
	}

	return real_readlink(path, buf, bufsize);
}


 int rename(const char *oldname,const char *newname)
{
	int p1, p2;
	p1 = smbw_path(oldname); 
	p2 = smbw_path(newname); 
	if (p1 ^ p2) {
		/* can't cross filesystem boundaries */
		errno = EXDEV;
		return -1;
	}
	if (p1 && p2) {
		return smbw_rename(oldname, newname);
	}

	return real_rename(oldname, newname);
}

 int rmdir(const char *name)
{
	if (smbw_path(name)) {
		return smbw_rmdir(name);
	}

	return real_rmdir(name);
}


 int symlink(const char *topath,const char *frompath)
{
	int p1, p2;
	p1 = smbw_path(topath); 
	p2 = smbw_path(frompath); 
	if (p1 || p2) {
		/* can't handle symlinks */
		errno = EPERM;
		return -1;
	}

	return real_symlink(topath, frompath);
}

 int dup(int fd)
{
	if (smbw_fd(fd)) {
		return smbw_dup(fd);
	}

	return real_dup(fd);
}

 int dup2(int oldfd, int newfd)
{
	if (smbw_fd(newfd)) {
		close(newfd);
	}

	if (smbw_fd(oldfd)) {
		return smbw_dup2(oldfd, newfd);
	}

	return real_dup2(oldfd, newfd);
}

 DIR *opendir(const char *name)
{
	if (smbw_path(name)) {
		return smbw_opendir(name);
	}

	return real_opendir(name);
}


 struct dirent *readdir(DIR *dir)
{
	if (smbw_dirp(dir)) {
		return smbw_readdir(dir);
	}

	return real_readdir(dir);
}

 int closedir(DIR *dir)
{
	if (smbw_dirp(dir)) {
		return smbw_closedir(dir);
	}

	return real_closedir(dir);
}

#ifndef NO_TELLDIR
 off_t telldir(DIR *dir)
{
	if (smbw_dirp(dir)) {
		return smbw_telldir(dir);
	}

	return real_telldir(dir);
}
#endif

#ifndef NO_SEEKDIR
 void seekdir(DIR *dir, off_t offset)
{
	if (smbw_dirp(dir)) {
		smbw_seekdir(dir, offset);
		return;
	}

	real_seekdir(dir, offset);
}
#endif