source: branches/samba-3.3.x/source/modules/vfs_cap.c

Last change on this file was 206, checked in by Herwig Bauernfeind, 16 years ago

Import Samba 3.3 branch at 3.0.0 level (psmedley's port)
File size: 17.3 KB
Line 
1/*
2 * CAP VFS module for Samba 3.x Version 0.3
3 *
4 * Copyright (C) Tim Potter, 1999-2000
5 * Copyright (C) Alexander Bokovoy, 2002-2003
6 * Copyright (C) Stefan (metze) Metzmacher, 2003
7 * Copyright (C) TAKAHASHI Motonobu (monyo), 2003
8 * Copyright (C) Jeremy Allison, 2007
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 3 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, see <http://www.gnu.org/licenses/>.
22 */
23
24
25#include "includes.h"
26
27/* cap functions */
28static char *capencode(TALLOC_CTX *ctx, const char *from);
29static char *capdecode(TALLOC_CTX *ctx, const char *from);
30
31static SMB_BIG_UINT cap_disk_free(vfs_handle_struct *handle, const char *path,
32 bool small_query, SMB_BIG_UINT *bsize,
33 SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
34{
35 char *cappath = capencode(talloc_tos(), path);
36
37 if (!cappath) {
38 errno = ENOMEM;
39 return (SMB_BIG_UINT)-1;
40 }
41 return SMB_VFS_NEXT_DISK_FREE(handle, cappath, small_query, bsize,
42 dfree, dsize);
43}
44
45static SMB_STRUCT_DIR *cap_opendir(vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attr)
46{
47 char *capname = capencode(talloc_tos(), fname);
48
49 if (!capname) {
50 errno = ENOMEM;
51 return NULL;
52 }
53 return SMB_VFS_NEXT_OPENDIR(handle, capname, mask, attr);
54}
55
56static SMB_STRUCT_DIRENT *cap_readdir(vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp)
57{
58 SMB_STRUCT_DIRENT *result;
59 SMB_STRUCT_DIRENT *newdirent;
60 char *newname;
61 size_t newnamelen;
62 DEBUG(3,("cap: cap_readdir\n"));
63
64 result = SMB_VFS_NEXT_READDIR(handle, dirp);
65 if (!result) {
66 return NULL;
67 }
68
69 newname = capdecode(talloc_tos(), result->d_name);
70 if (!newname) {
71 return NULL;
72 }
73 DEBUG(3,("cap: cap_readdir: %s\n", newname));
74 newnamelen = strlen(newname)+1;
75 newdirent = (SMB_STRUCT_DIRENT *)TALLOC_ARRAY(talloc_tos(),
76 char,
77 sizeof(SMB_STRUCT_DIRENT)+
78 newnamelen);
79 if (!newdirent) {
80 return NULL;
81 }
82 memcpy(newdirent, result, sizeof(SMB_STRUCT_DIRENT));
83 memcpy(&newdirent->d_name, newname, newnamelen);
84 return newdirent;
85}
86
87static int cap_mkdir(vfs_handle_struct *handle, const char *path, mode_t mode)
88{
89 char *cappath = capencode(talloc_tos(), path);
90
91 if (!cappath) {
92 errno = ENOMEM;
93 return -1;
94 }
95 return SMB_VFS_NEXT_MKDIR(handle, cappath, mode);
96}
97
98static int cap_rmdir(vfs_handle_struct *handle, const char *path)
99{
100 char *cappath = capencode(talloc_tos(), path);
101
102 if (!cappath) {
103 errno = ENOMEM;
104 return -1;
105 }
106 return SMB_VFS_NEXT_RMDIR(handle, cappath);
107}
108
109static int cap_open(vfs_handle_struct *handle, const char *fname, files_struct *fsp, int flags, mode_t mode)
110{
111 char *cappath = capencode(talloc_tos(), fname);
112
113 if (!cappath) {
114 errno = ENOMEM;
115 return -1;
116 }
117 DEBUG(3,("cap: cap_open for %s\n", fname));
118 return SMB_VFS_NEXT_OPEN(handle, cappath, fsp, flags, mode);
119}
120
121static int cap_rename(vfs_handle_struct *handle, const char *oldname, const char *newname)
122{
123 char *capold = capencode(talloc_tos(), oldname);
124 char *capnew = capencode(talloc_tos(), newname);
125
126 if (!capold || !capnew) {
127 errno = ENOMEM;
128 return -1;
129 }
130 return SMB_VFS_NEXT_RENAME(handle, capold, capnew);
131}
132
133static int cap_stat(vfs_handle_struct *handle, const char *path, SMB_STRUCT_STAT *sbuf)
134{
135 char *cappath = capencode(talloc_tos(), path);
136
137 if (!cappath) {
138 errno = ENOMEM;
139 return -1;
140 }
141 return SMB_VFS_NEXT_STAT(handle, cappath, sbuf);
142}
143
144static int cap_lstat(vfs_handle_struct *handle, const char *path, SMB_STRUCT_STAT *sbuf)
145{
146 char *cappath = capencode(talloc_tos(), path);
147
148 if (!cappath) {
149 errno = ENOMEM;
150 return -1;
151 }
152 return SMB_VFS_NEXT_LSTAT(handle, cappath, sbuf);
153}
154
155static int cap_unlink(vfs_handle_struct *handle, const char *path)
156{
157 char *cappath = capencode(talloc_tos(), path);
158
159 if (!cappath) {
160 errno = ENOMEM;
161 return -1;
162 }
163 return SMB_VFS_NEXT_UNLINK(handle, cappath);
164}
165
166static int cap_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
167{
168 char *cappath = capencode(talloc_tos(), path);
169
170 if (!cappath) {
171 errno = ENOMEM;
172 return -1;
173 }
174 return SMB_VFS_NEXT_CHMOD(handle, cappath, mode);
175}
176
177static int cap_chown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
178{
179 char *cappath = capencode(talloc_tos(), path);
180
181 if (!cappath) {
182 errno = ENOMEM;
183 return -1;
184 }
185 return SMB_VFS_NEXT_CHOWN(handle, cappath, uid, gid);
186}
187
188static int cap_lchown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
189{
190 char *cappath = capencode(talloc_tos(), path);
191
192 if (!cappath) {
193 errno = ENOMEM;
194 return -1;
195 }
196 return SMB_VFS_NEXT_LCHOWN(handle, cappath, uid, gid);
197}
198
199static int cap_chdir(vfs_handle_struct *handle, const char *path)
200{
201 char *cappath = capencode(talloc_tos(), path);
202
203 if (!cappath) {
204 errno = ENOMEM;
205 return -1;
206 }
207 DEBUG(3,("cap: cap_chdir for %s\n", path));
208 return SMB_VFS_NEXT_CHDIR(handle, cappath);
209}
210
211static int cap_ntimes(vfs_handle_struct *handle, const char *path, const struct timespec ts[2])
212{
213 char *cappath = capencode(talloc_tos(), path);
214
215 if (!cappath) {
216 errno = ENOMEM;
217 return -1;
218 }
219 return SMB_VFS_NEXT_NTIMES(handle, cappath, ts);
220}
221
222
223static bool cap_symlink(vfs_handle_struct *handle, const char *oldpath, const char *newpath)
224{
225 char *capold = capencode(talloc_tos(), oldpath);
226 char *capnew = capencode(talloc_tos(), newpath);
227
228 if (!capold || !capnew) {
229 errno = ENOMEM;
230 return -1;
231 }
232 return SMB_VFS_NEXT_SYMLINK(handle, capold, capnew);
233}
234
235static bool cap_readlink(vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz)
236{
237 char *cappath = capencode(talloc_tos(), path);
238
239 if (!cappath) {
240 errno = ENOMEM;
241 return -1;
242 }
243 return SMB_VFS_NEXT_READLINK(handle, cappath, buf, bufsiz);
244}
245
246static int cap_link(vfs_handle_struct *handle, const char *oldpath, const char *newpath)
247{
248 char *capold = capencode(talloc_tos(), oldpath);
249 char *capnew = capencode(talloc_tos(), newpath);
250
251 if (!capold || !capnew) {
252 errno = ENOMEM;
253 return -1;
254 }
255 return SMB_VFS_NEXT_LINK(handle, capold, capnew);
256}
257
258static int cap_mknod(vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev)
259{
260 char *cappath = capencode(talloc_tos(), path);
261
262 if (!cappath) {
263 errno = ENOMEM;
264 return -1;
265 }
266 return SMB_VFS_NEXT_MKNOD(handle, cappath, mode, dev);
267}
268
269static char *cap_realpath(vfs_handle_struct *handle, const char *path, char *resolved_path)
270{
271 /* monyo need capencode'ed and capdecode'ed? */
272 char *cappath = capencode(talloc_tos(), path);
273
274 if (!cappath) {
275 errno = ENOMEM;
276 return NULL;
277 }
278 return SMB_VFS_NEXT_REALPATH(handle, path, resolved_path);
279}
280
281static int cap_chmod_acl(vfs_handle_struct *handle, const char *path, mode_t mode)
282{
283 char *cappath = capencode(talloc_tos(), path);
284
285 /* If the underlying VFS doesn't have ACL support... */
286 if (!handle->vfs_next.ops.chmod_acl) {
287 errno = ENOSYS;
288 return -1;
289 }
290 if (!cappath) {
291 errno = ENOMEM;
292 return -1;
293 }
294 return SMB_VFS_NEXT_CHMOD_ACL(handle, cappath, mode);
295}
296
297static SMB_ACL_T cap_sys_acl_get_file(vfs_handle_struct *handle, const char *path, SMB_ACL_TYPE_T type)
298{
299 char *cappath = capencode(talloc_tos(), path);
300
301 if (!cappath) {
302 errno = ENOMEM;
303 return (SMB_ACL_T)NULL;
304 }
305 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, cappath, type);
306}
307
308static int cap_sys_acl_set_file(vfs_handle_struct *handle, const char *path, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
309{
310 char *cappath = capencode(talloc_tos(), path);
311
312 if (!cappath) {
313 errno = ENOMEM;
314 return -1;
315 }
316 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, cappath, acltype, theacl);
317}
318
319static int cap_sys_acl_delete_def_file(vfs_handle_struct *handle, const char *path)
320{
321 char *cappath = capencode(talloc_tos(), path);
322
323 if (!cappath) {
324 errno = ENOMEM;
325 return -1;
326 }
327 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, cappath);
328}
329
330static ssize_t cap_getxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t size)
331{
332 char *cappath = capencode(talloc_tos(), path);
333 char *capname = capencode(talloc_tos(), name);
334
335 if (!cappath || !capname) {
336 errno = ENOMEM;
337 return -1;
338 }
339 return SMB_VFS_NEXT_GETXATTR(handle, cappath, capname, value, size);
340}
341
342static ssize_t cap_lgetxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t
343size)
344{
345 char *cappath = capencode(talloc_tos(), path);
346 char *capname = capencode(talloc_tos(), name);
347
348 if (!cappath || !capname) {
349 errno = ENOMEM;
350 return -1;
351 }
352 return SMB_VFS_NEXT_LGETXATTR(handle, cappath, capname, value, size);
353}
354
355static ssize_t cap_fgetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, void *value, size_t size)
356{
357 char *cappath = capencode(talloc_tos(), path);
358
359 if (!cappath) {
360 errno = ENOMEM;
361 return -1;
362 }
363 return SMB_VFS_NEXT_FGETXATTR(handle, fsp, cappath, value, size);
364}
365
366static ssize_t cap_listxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
367{
368 char *cappath = capencode(talloc_tos(), path);
369
370 if (!cappath) {
371 errno = ENOMEM;
372 return -1;
373 }
374 return SMB_VFS_NEXT_LISTXATTR(handle, cappath, list, size);
375}
376
377static ssize_t cap_llistxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
378{
379 char *cappath = capencode(talloc_tos(), path);
380
381 if (!cappath) {
382 errno = ENOMEM;
383 return -1;
384 }
385 return SMB_VFS_NEXT_LLISTXATTR(handle, cappath, list, size);
386}
387
388static int cap_removexattr(vfs_handle_struct *handle, const char *path, const char *name)
389{
390 char *cappath = capencode(talloc_tos(), path);
391 char *capname = capencode(talloc_tos(), name);
392
393 if (!cappath || !capname) {
394 errno = ENOMEM;
395 return -1;
396 }
397 return SMB_VFS_NEXT_REMOVEXATTR(handle, cappath, capname);
398}
399
400static int cap_lremovexattr(vfs_handle_struct *handle, const char *path, const char *name)
401{
402 char *cappath = capencode(talloc_tos(), path);
403 char *capname = capencode(talloc_tos(), name);
404
405 if (!cappath || !capname) {
406 errno = ENOMEM;
407 return -1;
408 }
409 return SMB_VFS_NEXT_LREMOVEXATTR(handle, cappath, capname);
410}
411
412static int cap_fremovexattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path)
413{
414 char *cappath = capencode(talloc_tos(), path);
415
416 if (!cappath) {
417 errno = ENOMEM;
418 return -1;
419 }
420 return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, cappath);
421}
422
423static int cap_setxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
424{
425 char *cappath = capencode(talloc_tos(), path);
426 char *capname = capencode(talloc_tos(), name);
427
428 if (!cappath || !capname) {
429 errno = ENOMEM;
430 return -1;
431 }
432 return SMB_VFS_NEXT_SETXATTR(handle, cappath, capname, value, size, flags);
433}
434
435static int cap_lsetxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
436{
437 char *cappath = capencode(talloc_tos(), path);
438 char *capname = capencode(talloc_tos(), name);
439
440 if (!cappath || !capname) {
441 errno = ENOMEM;
442 return -1;
443 }
444 return SMB_VFS_NEXT_LSETXATTR(handle, cappath, capname, value, size, flags);
445}
446
447static int cap_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, const void *value, size_t size, int flags)
448{
449 char *cappath = capencode(talloc_tos(), path);
450
451 if (!cappath) {
452 errno = ENOMEM;
453 return -1;
454 }
455 return SMB_VFS_NEXT_FSETXATTR(handle, fsp, cappath, value, size, flags);
456}
457
458/* VFS operations structure */
459
460static vfs_op_tuple cap_op_tuples[] = {
461
462 /* Disk operations */
463
464 {SMB_VFS_OP(cap_disk_free), SMB_VFS_OP_DISK_FREE, SMB_VFS_LAYER_TRANSPARENT},
465
466 /* Directory operations */
467
468 {SMB_VFS_OP(cap_opendir), SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_TRANSPARENT},
469 {SMB_VFS_OP(cap_readdir), SMB_VFS_OP_READDIR, SMB_VFS_LAYER_TRANSPARENT},
470 {SMB_VFS_OP(cap_mkdir), SMB_VFS_OP_MKDIR, SMB_VFS_LAYER_TRANSPARENT},
471 {SMB_VFS_OP(cap_rmdir), SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_TRANSPARENT},
472
473 /* File operations */
474
475 {SMB_VFS_OP(cap_open), SMB_VFS_OP_OPEN, SMB_VFS_LAYER_TRANSPARENT},
476 {SMB_VFS_OP(cap_rename), SMB_VFS_OP_RENAME, SMB_VFS_LAYER_TRANSPARENT},
477 {SMB_VFS_OP(cap_stat), SMB_VFS_OP_STAT, SMB_VFS_LAYER_TRANSPARENT},
478 {SMB_VFS_OP(cap_lstat), SMB_VFS_OP_LSTAT, SMB_VFS_LAYER_TRANSPARENT},
479 {SMB_VFS_OP(cap_unlink), SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_TRANSPARENT},
480 {SMB_VFS_OP(cap_chmod), SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_TRANSPARENT},
481 {SMB_VFS_OP(cap_chown), SMB_VFS_OP_CHOWN, SMB_VFS_LAYER_TRANSPARENT},
482 {SMB_VFS_OP(cap_lchown), SMB_VFS_OP_LCHOWN, SMB_VFS_LAYER_TRANSPARENT},
483 {SMB_VFS_OP(cap_chdir), SMB_VFS_OP_CHDIR, SMB_VFS_LAYER_TRANSPARENT},
484 {SMB_VFS_OP(cap_ntimes), SMB_VFS_OP_NTIMES, SMB_VFS_LAYER_TRANSPARENT},
485 {SMB_VFS_OP(cap_symlink), SMB_VFS_OP_SYMLINK, SMB_VFS_LAYER_TRANSPARENT},
486 {SMB_VFS_OP(cap_readlink), SMB_VFS_OP_READLINK, SMB_VFS_LAYER_TRANSPARENT},
487 {SMB_VFS_OP(cap_link), SMB_VFS_OP_LINK, SMB_VFS_LAYER_TRANSPARENT},
488 {SMB_VFS_OP(cap_mknod), SMB_VFS_OP_MKNOD, SMB_VFS_LAYER_TRANSPARENT},
489 {SMB_VFS_OP(cap_realpath), SMB_VFS_OP_REALPATH, SMB_VFS_LAYER_TRANSPARENT},
490
491 /* POSIX ACL operations */
492
493 {SMB_VFS_OP(cap_chmod_acl), SMB_VFS_OP_CHMOD_ACL, SMB_VFS_LAYER_TRANSPARENT},
494
495 {SMB_VFS_OP(cap_sys_acl_get_file), SMB_VFS_OP_SYS_ACL_GET_FILE, SMB_VFS_LAYER_TRANSPARENT},
496 {SMB_VFS_OP(cap_sys_acl_set_file), SMB_VFS_OP_SYS_ACL_SET_FILE, SMB_VFS_LAYER_TRANSPARENT},
497 {SMB_VFS_OP(cap_sys_acl_delete_def_file), SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE, SMB_VFS_LAYER_TRANSPARENT},
498
499 /* EA operations. */
500 {SMB_VFS_OP(cap_getxattr), SMB_VFS_OP_GETXATTR, SMB_VFS_LAYER_TRANSPARENT},
501 {SMB_VFS_OP(cap_lgetxattr), SMB_VFS_OP_LGETXATTR, SMB_VFS_LAYER_TRANSPARENT},
502 {SMB_VFS_OP(cap_fgetxattr), SMB_VFS_OP_FGETXATTR, SMB_VFS_LAYER_TRANSPARENT},
503 {SMB_VFS_OP(cap_listxattr), SMB_VFS_OP_LISTXATTR, SMB_VFS_LAYER_TRANSPARENT},
504 {SMB_VFS_OP(cap_llistxattr), SMB_VFS_OP_LLISTXATTR, SMB_VFS_LAYER_TRANSPARENT},
505 {SMB_VFS_OP(cap_removexattr), SMB_VFS_OP_REMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT},
506 {SMB_VFS_OP(cap_lremovexattr), SMB_VFS_OP_LREMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT},
507 {SMB_VFS_OP(cap_fremovexattr), SMB_VFS_OP_FREMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT},
508 {SMB_VFS_OP(cap_setxattr), SMB_VFS_OP_SETXATTR, SMB_VFS_LAYER_TRANSPARENT},
509 {SMB_VFS_OP(cap_lsetxattr), SMB_VFS_OP_LSETXATTR, SMB_VFS_LAYER_TRANSPARENT},
510 {SMB_VFS_OP(cap_fsetxattr), SMB_VFS_OP_FSETXATTR, SMB_VFS_LAYER_TRANSPARENT},
511
512 {NULL, SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
513};
514
515NTSTATUS vfs_cap_init(void);
516NTSTATUS vfs_cap_init(void)
517{
518 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "cap", cap_op_tuples);
519}
520
521/* For CAP functions */
522#define hex_tag ':'
523#define hex2bin(c) hex2bin_table[(unsigned char)(c)]
524#define bin2hex(c) bin2hex_table[(unsigned char)(c)]
525#define is_hex(s) ((s)[0] == hex_tag)
526
527static unsigned char hex2bin_table[256] = {
5280, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
5290, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
5300, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
5310, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */
5320000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x40 */
5330000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
5340, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */
5350000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x60 */
5360000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
5370, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */
5380, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 */
5390, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 */
5400, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 */
5410, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 */
5420, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 */
5430, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 */
5440, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 */
5450, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xf0 */
546};
547static unsigned char bin2hex_table[256] = "0123456789abcdef";
548
549/*******************************************************************
550 original code -> ":xx" - CAP format
551********************************************************************/
552
553static char *capencode(TALLOC_CTX *ctx, const char *from)
554{
555 char *out = NULL;
556 const char *p1;
557 char *to = NULL;
558 size_t len = 0;
559
560 for (p1 = from; *p1; p1++) {
561 if ((unsigned char)*p1 >= 0x80) {
562 len += 3;
563 } else {
564 len++;
565 }
566 }
567 len++;
568
569 to = TALLOC_ARRAY(ctx, char, len);
570 if (!to) {
571 return NULL;
572 }
573
574 for (out = to; *from;) {
575 /* buffer husoku error */
576 if ((unsigned char)*from >= 0x80) {
577 *out++ = hex_tag;
578 *out++ = bin2hex (((*from)>>4)&0x0f);
579 *out++ = bin2hex ((*from)&0x0f);
580 from++;
581 } else {
582 *out++ = *from++;
583 }
584 }
585 *out = '\0';
586 return to;
587}
588
589/*******************************************************************
590 CAP -> original code
591********************************************************************/
592/* ":xx" -> a byte */
593
594static char *capdecode(TALLOC_CTX *ctx, const char *from)
595{
596 const char *p1;
597 char *out = NULL;
598 char *to = NULL;
599 size_t len = 0;
600
601 for (p1 = from; *p1; len++) {
602 if (is_hex(from)) {
603 p1 += 3;
604 } else {
605 p1++;
606 }
607 }
608
609 to = TALLOC_ARRAY(ctx, char, len);
610 if (!to) {
611 return NULL;
612 }
613
614 for (out = to; *from;) {
615 if (is_hex(from)) {
616 *out++ = (hex2bin(from[1])<<4) | (hex2bin(from[2]));
617 from += 3;
618 } else {
619 *out++ = *from++;
620 }
621 }
622 *out = '\0';
623 return to;
624}
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