source: vendor/3.5.0/source3/modules/vfs_cap.c

Last change on this file was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 17.7 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 uint64_t cap_disk_free(vfs_handle_struct *handle, const char *path,
32 bool small_query, uint64_t *bsize,
33 uint64_t *dfree, uint64_t *dsize)
34{
35 char *cappath = capencode(talloc_tos(), path);
36
37 if (!cappath) {
38 errno = ENOMEM;
39 return (uint64_t)-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,
57 SMB_STRUCT_DIR *dirp,
58 SMB_STRUCT_STAT *sbuf)
59{
60 SMB_STRUCT_DIRENT *result;
61 SMB_STRUCT_DIRENT *newdirent;
62 char *newname;
63 size_t newnamelen;
64 DEBUG(3,("cap: cap_readdir\n"));
65
66 result = SMB_VFS_NEXT_READDIR(handle, dirp, NULL);
67 if (!result) {
68 return NULL;
69 }
70
71 newname = capdecode(talloc_tos(), result->d_name);
72 if (!newname) {
73 return NULL;
74 }
75 DEBUG(3,("cap: cap_readdir: %s\n", newname));
76 newnamelen = strlen(newname)+1;
77 newdirent = (SMB_STRUCT_DIRENT *)TALLOC_ARRAY(talloc_tos(),
78 char,
79 sizeof(SMB_STRUCT_DIRENT)+
80 newnamelen);
81 if (!newdirent) {
82 return NULL;
83 }
84 memcpy(newdirent, result, sizeof(SMB_STRUCT_DIRENT));
85 memcpy(&newdirent->d_name, newname, newnamelen);
86 return newdirent;
87}
88
89static int cap_mkdir(vfs_handle_struct *handle, const char *path, mode_t mode)
90{
91 char *cappath = capencode(talloc_tos(), path);
92
93 if (!cappath) {
94 errno = ENOMEM;
95 return -1;
96 }
97 return SMB_VFS_NEXT_MKDIR(handle, cappath, mode);
98}
99
100static int cap_rmdir(vfs_handle_struct *handle, const char *path)
101{
102 char *cappath = capencode(talloc_tos(), path);
103
104 if (!cappath) {
105 errno = ENOMEM;
106 return -1;
107 }
108 return SMB_VFS_NEXT_RMDIR(handle, cappath);
109}
110
111static int cap_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
112 files_struct *fsp, int flags, mode_t mode)
113{
114 char *cappath;
115 char *tmp_base_name = NULL;
116 int ret;
117
118 cappath = capencode(talloc_tos(), smb_fname->base_name);
119
120 if (!cappath) {
121 errno = ENOMEM;
122 return -1;
123 }
124
125 tmp_base_name = smb_fname->base_name;
126 smb_fname->base_name = cappath;
127
128 DEBUG(3,("cap: cap_open for %s\n", smb_fname_str_dbg(smb_fname)));
129 ret = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
130
131 smb_fname->base_name = tmp_base_name;
132 TALLOC_FREE(cappath);
133
134 return ret;
135}
136
137static int cap_rename(vfs_handle_struct *handle,
138 const struct smb_filename *smb_fname_src,
139 const struct smb_filename *smb_fname_dst)
140{
141 char *capold = NULL;
142 char *capnew = NULL;
143 struct smb_filename *smb_fname_src_tmp = NULL;
144 struct smb_filename *smb_fname_dst_tmp = NULL;
145 NTSTATUS status;
146 int ret = -1;
147
148 capold = capencode(talloc_tos(), smb_fname_src->base_name);
149 capnew = capencode(talloc_tos(), smb_fname_dst->base_name);
150 if (!capold || !capnew) {
151 errno = ENOMEM;
152 goto out;
153 }
154
155 /* Setup temporary smb_filename structs. */
156 status = copy_smb_filename(talloc_tos(), smb_fname_src,
157 &smb_fname_src_tmp);
158 if (!NT_STATUS_IS_OK(status)) {
159 errno = map_errno_from_nt_status(status);
160 goto out;
161 }
162 status = copy_smb_filename(talloc_tos(), smb_fname_dst,
163 &smb_fname_dst_tmp);
164 if (!NT_STATUS_IS_OK(status)) {
165 errno = map_errno_from_nt_status(status);
166 goto out;
167 }
168
169 smb_fname_src_tmp->base_name = capold;
170 smb_fname_dst_tmp->base_name = capnew;
171
172 ret = SMB_VFS_NEXT_RENAME(handle, smb_fname_src_tmp,
173 smb_fname_dst_tmp);
174 out:
175 TALLOC_FREE(capold);
176 TALLOC_FREE(capnew);
177 TALLOC_FREE(smb_fname_src_tmp);
178 TALLOC_FREE(smb_fname_dst_tmp);
179
180 return ret;
181}
182
183static int cap_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
184{
185 char *cappath;
186 char *tmp_base_name = NULL;
187 int ret;
188
189 cappath = capencode(talloc_tos(), smb_fname->base_name);
190
191 if (!cappath) {
192 errno = ENOMEM;
193 return -1;
194 }
195
196 tmp_base_name = smb_fname->base_name;
197 smb_fname->base_name = cappath;
198
199 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
200
201 smb_fname->base_name = tmp_base_name;
202 TALLOC_FREE(cappath);
203
204 return ret;
205}
206
207static int cap_lstat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
208{
209 char *cappath;
210 char *tmp_base_name = NULL;
211 int ret;
212
213 cappath = capencode(talloc_tos(), smb_fname->base_name);
214
215 if (!cappath) {
216 errno = ENOMEM;
217 return -1;
218 }
219
220 tmp_base_name = smb_fname->base_name;
221 smb_fname->base_name = cappath;
222
223 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
224
225 smb_fname->base_name = tmp_base_name;
226 TALLOC_FREE(cappath);
227
228 return ret;
229}
230
231static int cap_unlink(vfs_handle_struct *handle,
232 const struct smb_filename *smb_fname)
233{
234 struct smb_filename *smb_fname_tmp = NULL;
235 char *cappath = NULL;
236 NTSTATUS status;
237 int ret;
238
239 cappath = capencode(talloc_tos(), smb_fname->base_name);
240 if (!cappath) {
241 errno = ENOMEM;
242 return -1;
243 }
244
245 /* Setup temporary smb_filename structs. */
246 status = copy_smb_filename(talloc_tos(), smb_fname,
247 &smb_fname_tmp);
248 if (!NT_STATUS_IS_OK(status)) {
249 errno = map_errno_from_nt_status(status);
250 return -1;
251 }
252
253 smb_fname_tmp->base_name = cappath;
254
255 ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname_tmp);
256
257 TALLOC_FREE(smb_fname_tmp);
258 return ret;
259}
260
261static int cap_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
262{
263 char *cappath = capencode(talloc_tos(), path);
264
265 if (!cappath) {
266 errno = ENOMEM;
267 return -1;
268 }
269 return SMB_VFS_NEXT_CHMOD(handle, cappath, mode);
270}
271
272static int cap_chown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
273{
274 char *cappath = capencode(talloc_tos(), path);
275
276 if (!cappath) {
277 errno = ENOMEM;
278 return -1;
279 }
280 return SMB_VFS_NEXT_CHOWN(handle, cappath, uid, gid);
281}
282
283static int cap_lchown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
284{
285 char *cappath = capencode(talloc_tos(), path);
286
287 if (!cappath) {
288 errno = ENOMEM;
289 return -1;
290 }
291 return SMB_VFS_NEXT_LCHOWN(handle, cappath, uid, gid);
292}
293
294static int cap_chdir(vfs_handle_struct *handle, const char *path)
295{
296 char *cappath = capencode(talloc_tos(), path);
297
298 if (!cappath) {
299 errno = ENOMEM;
300 return -1;
301 }
302 DEBUG(3,("cap: cap_chdir for %s\n", path));
303 return SMB_VFS_NEXT_CHDIR(handle, cappath);
304}
305
306static int cap_ntimes(vfs_handle_struct *handle,
307 const struct smb_filename *smb_fname,
308 struct smb_file_time *ft)
309{
310 struct smb_filename *smb_fname_tmp = NULL;
311 char *cappath = NULL;
312 NTSTATUS status;
313 int ret;
314
315 cappath = capencode(talloc_tos(), smb_fname->base_name);
316
317 if (!cappath) {
318 errno = ENOMEM;
319 return -1;
320 }
321
322 /* Setup temporary smb_filename structs. */
323 status = copy_smb_filename(talloc_tos(), smb_fname,
324 &smb_fname_tmp);
325 if (!NT_STATUS_IS_OK(status)) {
326 errno = map_errno_from_nt_status(status);
327 return -1;
328 }
329
330 smb_fname_tmp->base_name = cappath;
331
332 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname_tmp, ft);
333
334 TALLOC_FREE(smb_fname_tmp);
335 return ret;
336}
337
338
339static int cap_symlink(vfs_handle_struct *handle, const char *oldpath,
340 const char *newpath)
341{
342 char *capold = capencode(talloc_tos(), oldpath);
343 char *capnew = capencode(talloc_tos(), newpath);
344
345 if (!capold || !capnew) {
346 errno = ENOMEM;
347 return -1;
348 }
349 return SMB_VFS_NEXT_SYMLINK(handle, capold, capnew);
350}
351
352static int cap_readlink(vfs_handle_struct *handle, const char *path,
353 char *buf, size_t bufsiz)
354{
355 char *cappath = capencode(talloc_tos(), path);
356
357 if (!cappath) {
358 errno = ENOMEM;
359 return -1;
360 }
361 return SMB_VFS_NEXT_READLINK(handle, cappath, buf, bufsiz);
362}
363
364static int cap_link(vfs_handle_struct *handle, const char *oldpath, const char *newpath)
365{
366 char *capold = capencode(talloc_tos(), oldpath);
367 char *capnew = capencode(talloc_tos(), newpath);
368
369 if (!capold || !capnew) {
370 errno = ENOMEM;
371 return -1;
372 }
373 return SMB_VFS_NEXT_LINK(handle, capold, capnew);
374}
375
376static int cap_mknod(vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev)
377{
378 char *cappath = capencode(talloc_tos(), path);
379
380 if (!cappath) {
381 errno = ENOMEM;
382 return -1;
383 }
384 return SMB_VFS_NEXT_MKNOD(handle, cappath, mode, dev);
385}
386
387static char *cap_realpath(vfs_handle_struct *handle, const char *path, char *resolved_path)
388{
389 /* monyo need capencode'ed and capdecode'ed? */
390 char *cappath = capencode(talloc_tos(), path);
391
392 if (!cappath) {
393 errno = ENOMEM;
394 return NULL;
395 }
396 return SMB_VFS_NEXT_REALPATH(handle, path, resolved_path);
397}
398
399static int cap_chmod_acl(vfs_handle_struct *handle, const char *path, mode_t mode)
400{
401 char *cappath = capencode(talloc_tos(), path);
402
403 /* If the underlying VFS doesn't have ACL support... */
404 if (!cappath) {
405 errno = ENOMEM;
406 return -1;
407 }
408 return SMB_VFS_NEXT_CHMOD_ACL(handle, cappath, mode);
409}
410
411static SMB_ACL_T cap_sys_acl_get_file(vfs_handle_struct *handle, const char *path, SMB_ACL_TYPE_T type)
412{
413 char *cappath = capencode(talloc_tos(), path);
414
415 if (!cappath) {
416 errno = ENOMEM;
417 return (SMB_ACL_T)NULL;
418 }
419 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, cappath, type);
420}
421
422static int cap_sys_acl_set_file(vfs_handle_struct *handle, const char *path, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
423{
424 char *cappath = capencode(talloc_tos(), path);
425
426 if (!cappath) {
427 errno = ENOMEM;
428 return -1;
429 }
430 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, cappath, acltype, theacl);
431}
432
433static int cap_sys_acl_delete_def_file(vfs_handle_struct *handle, const char *path)
434{
435 char *cappath = capencode(talloc_tos(), path);
436
437 if (!cappath) {
438 errno = ENOMEM;
439 return -1;
440 }
441 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, cappath);
442}
443
444static ssize_t cap_getxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t size)
445{
446 char *cappath = capencode(talloc_tos(), path);
447 char *capname = capencode(talloc_tos(), name);
448
449 if (!cappath || !capname) {
450 errno = ENOMEM;
451 return -1;
452 }
453 return SMB_VFS_NEXT_GETXATTR(handle, cappath, capname, value, size);
454}
455
456static ssize_t cap_lgetxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t
457size)
458{
459 char *cappath = capencode(talloc_tos(), path);
460 char *capname = capencode(talloc_tos(), name);
461
462 if (!cappath || !capname) {
463 errno = ENOMEM;
464 return -1;
465 }
466 return SMB_VFS_NEXT_LGETXATTR(handle, cappath, capname, value, size);
467}
468
469static ssize_t cap_fgetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, void *value, size_t size)
470{
471 char *cappath = capencode(talloc_tos(), path);
472
473 if (!cappath) {
474 errno = ENOMEM;
475 return -1;
476 }
477 return SMB_VFS_NEXT_FGETXATTR(handle, fsp, cappath, value, size);
478}
479
480static ssize_t cap_listxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
481{
482 char *cappath = capencode(talloc_tos(), path);
483
484 if (!cappath) {
485 errno = ENOMEM;
486 return -1;
487 }
488 return SMB_VFS_NEXT_LISTXATTR(handle, cappath, list, size);
489}
490
491static ssize_t cap_llistxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
492{
493 char *cappath = capencode(talloc_tos(), path);
494
495 if (!cappath) {
496 errno = ENOMEM;
497 return -1;
498 }
499 return SMB_VFS_NEXT_LLISTXATTR(handle, cappath, list, size);
500}
501
502static int cap_removexattr(vfs_handle_struct *handle, const char *path, const char *name)
503{
504 char *cappath = capencode(talloc_tos(), path);
505 char *capname = capencode(talloc_tos(), name);
506
507 if (!cappath || !capname) {
508 errno = ENOMEM;
509 return -1;
510 }
511 return SMB_VFS_NEXT_REMOVEXATTR(handle, cappath, capname);
512}
513
514static int cap_lremovexattr(vfs_handle_struct *handle, const char *path, const char *name)
515{
516 char *cappath = capencode(talloc_tos(), path);
517 char *capname = capencode(talloc_tos(), name);
518
519 if (!cappath || !capname) {
520 errno = ENOMEM;
521 return -1;
522 }
523 return SMB_VFS_NEXT_LREMOVEXATTR(handle, cappath, capname);
524}
525
526static int cap_fremovexattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path)
527{
528 char *cappath = capencode(talloc_tos(), path);
529
530 if (!cappath) {
531 errno = ENOMEM;
532 return -1;
533 }
534 return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, cappath);
535}
536
537static int cap_setxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
538{
539 char *cappath = capencode(talloc_tos(), path);
540 char *capname = capencode(talloc_tos(), name);
541
542 if (!cappath || !capname) {
543 errno = ENOMEM;
544 return -1;
545 }
546 return SMB_VFS_NEXT_SETXATTR(handle, cappath, capname, value, size, flags);
547}
548
549static int cap_lsetxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
550{
551 char *cappath = capencode(talloc_tos(), path);
552 char *capname = capencode(talloc_tos(), name);
553
554 if (!cappath || !capname) {
555 errno = ENOMEM;
556 return -1;
557 }
558 return SMB_VFS_NEXT_LSETXATTR(handle, cappath, capname, value, size, flags);
559}
560
561static int cap_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, const void *value, size_t size, int flags)
562{
563 char *cappath = capencode(talloc_tos(), path);
564
565 if (!cappath) {
566 errno = ENOMEM;
567 return -1;
568 }
569 return SMB_VFS_NEXT_FSETXATTR(handle, fsp, cappath, value, size, flags);
570}
571
572static struct vfs_fn_pointers vfs_cap_fns = {
573 .disk_free = cap_disk_free,
574 .opendir = cap_opendir,
575 .readdir = cap_readdir,
576 .mkdir = cap_mkdir,
577 .rmdir = cap_rmdir,
578 .open = cap_open,
579 .rename = cap_rename,
580 .stat = cap_stat,
581 .lstat = cap_lstat,
582 .unlink = cap_unlink,
583 .chmod = cap_chmod,
584 .chown = cap_chown,
585 .lchown = cap_lchown,
586 .chdir = cap_chdir,
587 .ntimes = cap_ntimes,
588 .symlink = cap_symlink,
589 .vfs_readlink = cap_readlink,
590 .link = cap_link,
591 .mknod = cap_mknod,
592 .realpath = cap_realpath,
593 .chmod_acl = cap_chmod_acl,
594 .sys_acl_get_file = cap_sys_acl_get_file,
595 .sys_acl_set_file = cap_sys_acl_set_file,
596 .sys_acl_delete_def_file = cap_sys_acl_delete_def_file,
597 .getxattr = cap_getxattr,
598 .lgetxattr = cap_lgetxattr,
599 .fgetxattr = cap_fgetxattr,
600 .listxattr = cap_listxattr,
601 .llistxattr = cap_llistxattr,
602 .removexattr = cap_removexattr,
603 .lremovexattr = cap_lremovexattr,
604 .fremovexattr = cap_fremovexattr,
605 .setxattr = cap_setxattr,
606 .lsetxattr = cap_lsetxattr,
607 .fsetxattr = cap_fsetxattr
608};
609
610NTSTATUS vfs_cap_init(void);
611NTSTATUS vfs_cap_init(void)
612{
613 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "cap",
614 &vfs_cap_fns);
615}
616
617/* For CAP functions */
618#define hex_tag ':'
619#define hex2bin(c) hex2bin_table[(unsigned char)(c)]
620#define bin2hex(c) bin2hex_table[(unsigned char)(c)]
621#define is_hex(s) ((s)[0] == hex_tag)
622
623static unsigned char hex2bin_table[256] = {
6240, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
6250, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
6260, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
6270, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */
6280000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x40 */
6290000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
6300, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */
6310000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x60 */
6320000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
6330, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */
6340, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 */
6350, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 */
6360, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 */
6370, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 */
6380, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 */
6390, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 */
6400, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 */
6410, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xf0 */
642};
643static unsigned char bin2hex_table[256] = "0123456789abcdef";
644
645/*******************************************************************
646 original code -> ":xx" - CAP format
647********************************************************************/
648
649static char *capencode(TALLOC_CTX *ctx, const char *from)
650{
651 char *out = NULL;
652 const char *p1;
653 char *to = NULL;
654 size_t len = 0;
655
656 for (p1 = from; *p1; p1++) {
657 if ((unsigned char)*p1 >= 0x80) {
658 len += 3;
659 } else {
660 len++;
661 }
662 }
663 len++;
664
665 to = TALLOC_ARRAY(ctx, char, len);
666 if (!to) {
667 return NULL;
668 }
669
670 for (out = to; *from;) {
671 /* buffer husoku error */
672 if ((unsigned char)*from >= 0x80) {
673 *out++ = hex_tag;
674 *out++ = bin2hex (((*from)>>4)&0x0f);
675 *out++ = bin2hex ((*from)&0x0f);
676 from++;
677 } else {
678 *out++ = *from++;
679 }
680 }
681 *out = '\0';
682 return to;
683}
684
685/*******************************************************************
686 CAP -> original code
687********************************************************************/
688/* ":xx" -> a byte */
689
690static char *capdecode(TALLOC_CTX *ctx, const char *from)
691{
692 const char *p1;
693 char *out = NULL;
694 char *to = NULL;
695 size_t len = 0;
696
697 for (p1 = from; *p1; len++) {
698 if (is_hex(p1)) {
699 p1 += 3;
700 } else {
701 p1++;
702 }
703 }
704 len++;
705
706 to = TALLOC_ARRAY(ctx, char, len);
707 if (!to) {
708 return NULL;
709 }
710
711 for (out = to; *from;) {
712 if (is_hex(from)) {
713 *out++ = (hex2bin(from[1])<<4) | (hex2bin(from[2]));
714 from += 3;
715 } else {
716 *out++ = *from++;
717 }
718 }
719 *out = '\0';
720 return to;
721}
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