source: vendor/3.6.9/source3/modules/vfs_cap.c

Last change on this file was 740, checked in by Silvan Scherrer, 13 years ago

Samba Server: update vendor to 3.6.0
File size: 18.4 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#include "smbd/smbd.h"
27
28/* cap functions */
29static char *capencode(TALLOC_CTX *ctx, const char *from);
30static char *capdecode(TALLOC_CTX *ctx, const char *from);
31
32static uint64_t cap_disk_free(vfs_handle_struct *handle, const char *path,
33 bool small_query, uint64_t *bsize,
34 uint64_t *dfree, uint64_t *dsize)
35{
36 char *cappath = capencode(talloc_tos(), path);
37
38 if (!cappath) {
39 errno = ENOMEM;
40 return (uint64_t)-1;
41 }
42 return SMB_VFS_NEXT_DISK_FREE(handle, cappath, small_query, bsize,
43 dfree, dsize);
44}
45
46static SMB_STRUCT_DIR *cap_opendir(vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attr)
47{
48 char *capname = capencode(talloc_tos(), fname);
49
50 if (!capname) {
51 errno = ENOMEM;
52 return NULL;
53 }
54 return SMB_VFS_NEXT_OPENDIR(handle, capname, mask, attr);
55}
56
57static SMB_STRUCT_DIRENT *cap_readdir(vfs_handle_struct *handle,
58 SMB_STRUCT_DIR *dirp,
59 SMB_STRUCT_STAT *sbuf)
60{
61 SMB_STRUCT_DIRENT *result;
62 SMB_STRUCT_DIRENT *newdirent;
63 char *newname;
64 size_t newnamelen;
65 DEBUG(3,("cap: cap_readdir\n"));
66
67 result = SMB_VFS_NEXT_READDIR(handle, dirp, NULL);
68 if (!result) {
69 return NULL;
70 }
71
72 newname = capdecode(talloc_tos(), result->d_name);
73 if (!newname) {
74 return NULL;
75 }
76 DEBUG(3,("cap: cap_readdir: %s\n", newname));
77 newnamelen = strlen(newname)+1;
78 newdirent = (SMB_STRUCT_DIRENT *)TALLOC_ARRAY(talloc_tos(),
79 char,
80 sizeof(SMB_STRUCT_DIRENT)+
81 newnamelen);
82 if (!newdirent) {
83 return NULL;
84 }
85 memcpy(newdirent, result, sizeof(SMB_STRUCT_DIRENT));
86 memcpy(&newdirent->d_name, newname, newnamelen);
87 return newdirent;
88}
89
90static int cap_mkdir(vfs_handle_struct *handle, const char *path, mode_t mode)
91{
92 char *cappath = capencode(talloc_tos(), path);
93
94 if (!cappath) {
95 errno = ENOMEM;
96 return -1;
97 }
98 return SMB_VFS_NEXT_MKDIR(handle, cappath, mode);
99}
100
101static int cap_rmdir(vfs_handle_struct *handle, const char *path)
102{
103 char *cappath = capencode(talloc_tos(), path);
104
105 if (!cappath) {
106 errno = ENOMEM;
107 return -1;
108 }
109 return SMB_VFS_NEXT_RMDIR(handle, cappath);
110}
111
112static int cap_open(vfs_handle_struct *handle, struct smb_filename *smb_fname,
113 files_struct *fsp, int flags, mode_t mode)
114{
115 char *cappath;
116 char *tmp_base_name = NULL;
117 int ret;
118
119 cappath = capencode(talloc_tos(), smb_fname->base_name);
120
121 if (!cappath) {
122 errno = ENOMEM;
123 return -1;
124 }
125
126 tmp_base_name = smb_fname->base_name;
127 smb_fname->base_name = cappath;
128
129 DEBUG(3,("cap: cap_open for %s\n", smb_fname_str_dbg(smb_fname)));
130 ret = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
131
132 smb_fname->base_name = tmp_base_name;
133 TALLOC_FREE(cappath);
134
135 return ret;
136}
137
138static int cap_rename(vfs_handle_struct *handle,
139 const struct smb_filename *smb_fname_src,
140 const struct smb_filename *smb_fname_dst)
141{
142 char *capold = NULL;
143 char *capnew = NULL;
144 struct smb_filename *smb_fname_src_tmp = NULL;
145 struct smb_filename *smb_fname_dst_tmp = NULL;
146 NTSTATUS status;
147 int ret = -1;
148
149 capold = capencode(talloc_tos(), smb_fname_src->base_name);
150 capnew = capencode(talloc_tos(), smb_fname_dst->base_name);
151 if (!capold || !capnew) {
152 errno = ENOMEM;
153 goto out;
154 }
155
156 /* Setup temporary smb_filename structs. */
157 status = copy_smb_filename(talloc_tos(), smb_fname_src,
158 &smb_fname_src_tmp);
159 if (!NT_STATUS_IS_OK(status)) {
160 errno = map_errno_from_nt_status(status);
161 goto out;
162 }
163 status = copy_smb_filename(talloc_tos(), smb_fname_dst,
164 &smb_fname_dst_tmp);
165 if (!NT_STATUS_IS_OK(status)) {
166 errno = map_errno_from_nt_status(status);
167 goto out;
168 }
169
170 smb_fname_src_tmp->base_name = capold;
171 smb_fname_dst_tmp->base_name = capnew;
172
173 ret = SMB_VFS_NEXT_RENAME(handle, smb_fname_src_tmp,
174 smb_fname_dst_tmp);
175 out:
176 TALLOC_FREE(capold);
177 TALLOC_FREE(capnew);
178 TALLOC_FREE(smb_fname_src_tmp);
179 TALLOC_FREE(smb_fname_dst_tmp);
180
181 return ret;
182}
183
184static int cap_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
185{
186 char *cappath;
187 char *tmp_base_name = NULL;
188 int ret;
189
190 cappath = capencode(talloc_tos(), smb_fname->base_name);
191
192 if (!cappath) {
193 errno = ENOMEM;
194 return -1;
195 }
196
197 tmp_base_name = smb_fname->base_name;
198 smb_fname->base_name = cappath;
199
200 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
201
202 smb_fname->base_name = tmp_base_name;
203 TALLOC_FREE(cappath);
204
205 return ret;
206}
207
208static int cap_lstat(vfs_handle_struct *handle, struct smb_filename *smb_fname)
209{
210 char *cappath;
211 char *tmp_base_name = NULL;
212 int ret;
213
214 cappath = capencode(talloc_tos(), smb_fname->base_name);
215
216 if (!cappath) {
217 errno = ENOMEM;
218 return -1;
219 }
220
221 tmp_base_name = smb_fname->base_name;
222 smb_fname->base_name = cappath;
223
224 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
225
226 smb_fname->base_name = tmp_base_name;
227 TALLOC_FREE(cappath);
228
229 return ret;
230}
231
232static int cap_unlink(vfs_handle_struct *handle,
233 const struct smb_filename *smb_fname)
234{
235 struct smb_filename *smb_fname_tmp = NULL;
236 char *cappath = NULL;
237 NTSTATUS status;
238 int ret;
239
240 cappath = capencode(talloc_tos(), smb_fname->base_name);
241 if (!cappath) {
242 errno = ENOMEM;
243 return -1;
244 }
245
246 /* Setup temporary smb_filename structs. */
247 status = copy_smb_filename(talloc_tos(), smb_fname,
248 &smb_fname_tmp);
249 if (!NT_STATUS_IS_OK(status)) {
250 errno = map_errno_from_nt_status(status);
251 return -1;
252 }
253
254 smb_fname_tmp->base_name = cappath;
255
256 ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname_tmp);
257
258 TALLOC_FREE(smb_fname_tmp);
259 return ret;
260}
261
262static int cap_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
263{
264 char *cappath = capencode(talloc_tos(), path);
265
266 if (!cappath) {
267 errno = ENOMEM;
268 return -1;
269 }
270 return SMB_VFS_NEXT_CHMOD(handle, cappath, mode);
271}
272
273static int cap_chown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
274{
275 char *cappath = capencode(talloc_tos(), path);
276
277 if (!cappath) {
278 errno = ENOMEM;
279 return -1;
280 }
281 return SMB_VFS_NEXT_CHOWN(handle, cappath, uid, gid);
282}
283
284static int cap_lchown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
285{
286 char *cappath = capencode(talloc_tos(), path);
287
288 if (!cappath) {
289 errno = ENOMEM;
290 return -1;
291 }
292 return SMB_VFS_NEXT_LCHOWN(handle, cappath, uid, gid);
293}
294
295static int cap_chdir(vfs_handle_struct *handle, const char *path)
296{
297 char *cappath = capencode(talloc_tos(), path);
298
299 if (!cappath) {
300 errno = ENOMEM;
301 return -1;
302 }
303 DEBUG(3,("cap: cap_chdir for %s\n", path));
304 return SMB_VFS_NEXT_CHDIR(handle, cappath);
305}
306
307static int cap_ntimes(vfs_handle_struct *handle,
308 const struct smb_filename *smb_fname,
309 struct smb_file_time *ft)
310{
311 struct smb_filename *smb_fname_tmp = NULL;
312 char *cappath = NULL;
313 NTSTATUS status;
314 int ret;
315
316 cappath = capencode(talloc_tos(), smb_fname->base_name);
317
318 if (!cappath) {
319 errno = ENOMEM;
320 return -1;
321 }
322
323 /* Setup temporary smb_filename structs. */
324 status = copy_smb_filename(talloc_tos(), smb_fname,
325 &smb_fname_tmp);
326 if (!NT_STATUS_IS_OK(status)) {
327 errno = map_errno_from_nt_status(status);
328 return -1;
329 }
330
331 smb_fname_tmp->base_name = cappath;
332
333 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname_tmp, ft);
334
335 TALLOC_FREE(smb_fname_tmp);
336 return ret;
337}
338
339
340static int cap_symlink(vfs_handle_struct *handle, const char *oldpath,
341 const char *newpath)
342{
343 char *capold = capencode(talloc_tos(), oldpath);
344 char *capnew = capencode(talloc_tos(), newpath);
345
346 if (!capold || !capnew) {
347 errno = ENOMEM;
348 return -1;
349 }
350 return SMB_VFS_NEXT_SYMLINK(handle, capold, capnew);
351}
352
353static int cap_readlink(vfs_handle_struct *handle, const char *path,
354 char *buf, size_t bufsiz)
355{
356 char *cappath = capencode(talloc_tos(), path);
357
358 if (!cappath) {
359 errno = ENOMEM;
360 return -1;
361 }
362 return SMB_VFS_NEXT_READLINK(handle, cappath, buf, bufsiz);
363}
364
365static int cap_link(vfs_handle_struct *handle, const char *oldpath, const char *newpath)
366{
367 char *capold = capencode(talloc_tos(), oldpath);
368 char *capnew = capencode(talloc_tos(), newpath);
369
370 if (!capold || !capnew) {
371 errno = ENOMEM;
372 return -1;
373 }
374 return SMB_VFS_NEXT_LINK(handle, capold, capnew);
375}
376
377static int cap_mknod(vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev)
378{
379 char *cappath = capencode(talloc_tos(), path);
380
381 if (!cappath) {
382 errno = ENOMEM;
383 return -1;
384 }
385 return SMB_VFS_NEXT_MKNOD(handle, cappath, mode, dev);
386}
387
388static char *cap_realpath(vfs_handle_struct *handle, const char *path)
389{
390 /* monyo need capencode'ed and capdecode'ed? */
391 char *cappath = capencode(talloc_tos(), path);
392
393 if (!cappath) {
394 errno = ENOMEM;
395 return NULL;
396 }
397 return SMB_VFS_NEXT_REALPATH(handle, cappath);
398}
399
400static int cap_chmod_acl(vfs_handle_struct *handle, const char *path, mode_t mode)
401{
402 char *cappath = capencode(talloc_tos(), path);
403
404 /* If the underlying VFS doesn't have ACL support... */
405 if (!cappath) {
406 errno = ENOMEM;
407 return -1;
408 }
409 return SMB_VFS_NEXT_CHMOD_ACL(handle, cappath, mode);
410}
411
412static SMB_ACL_T cap_sys_acl_get_file(vfs_handle_struct *handle, const char *path, SMB_ACL_TYPE_T type)
413{
414 char *cappath = capencode(talloc_tos(), path);
415
416 if (!cappath) {
417 errno = ENOMEM;
418 return (SMB_ACL_T)NULL;
419 }
420 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, cappath, type);
421}
422
423static int cap_sys_acl_set_file(vfs_handle_struct *handle, const char *path, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
424{
425 char *cappath = capencode(talloc_tos(), path);
426
427 if (!cappath) {
428 errno = ENOMEM;
429 return -1;
430 }
431 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, cappath, acltype, theacl);
432}
433
434static int cap_sys_acl_delete_def_file(vfs_handle_struct *handle, const char *path)
435{
436 char *cappath = capencode(talloc_tos(), path);
437
438 if (!cappath) {
439 errno = ENOMEM;
440 return -1;
441 }
442 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, cappath);
443}
444
445static ssize_t cap_getxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t size)
446{
447 char *cappath = capencode(talloc_tos(), path);
448 char *capname = capencode(talloc_tos(), name);
449
450 if (!cappath || !capname) {
451 errno = ENOMEM;
452 return -1;
453 }
454 return SMB_VFS_NEXT_GETXATTR(handle, cappath, capname, value, size);
455}
456
457static ssize_t cap_lgetxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t
458size)
459{
460 char *cappath = capencode(talloc_tos(), path);
461 char *capname = capencode(talloc_tos(), name);
462
463 if (!cappath || !capname) {
464 errno = ENOMEM;
465 return -1;
466 }
467 return SMB_VFS_NEXT_LGETXATTR(handle, cappath, capname, value, size);
468}
469
470static ssize_t cap_fgetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, void *value, size_t size)
471{
472 char *cappath = capencode(talloc_tos(), path);
473
474 if (!cappath) {
475 errno = ENOMEM;
476 return -1;
477 }
478 return SMB_VFS_NEXT_FGETXATTR(handle, fsp, cappath, value, size);
479}
480
481static ssize_t cap_listxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
482{
483 char *cappath = capencode(talloc_tos(), path);
484
485 if (!cappath) {
486 errno = ENOMEM;
487 return -1;
488 }
489 return SMB_VFS_NEXT_LISTXATTR(handle, cappath, list, size);
490}
491
492static ssize_t cap_llistxattr(vfs_handle_struct *handle, const char *path, char *list, size_t size)
493{
494 char *cappath = capencode(talloc_tos(), path);
495
496 if (!cappath) {
497 errno = ENOMEM;
498 return -1;
499 }
500 return SMB_VFS_NEXT_LLISTXATTR(handle, cappath, list, size);
501}
502
503static int cap_removexattr(vfs_handle_struct *handle, const char *path, const char *name)
504{
505 char *cappath = capencode(talloc_tos(), path);
506 char *capname = capencode(talloc_tos(), name);
507
508 if (!cappath || !capname) {
509 errno = ENOMEM;
510 return -1;
511 }
512 return SMB_VFS_NEXT_REMOVEXATTR(handle, cappath, capname);
513}
514
515static int cap_lremovexattr(vfs_handle_struct *handle, const char *path, const char *name)
516{
517 char *cappath = capencode(talloc_tos(), path);
518 char *capname = capencode(talloc_tos(), name);
519
520 if (!cappath || !capname) {
521 errno = ENOMEM;
522 return -1;
523 }
524 return SMB_VFS_NEXT_LREMOVEXATTR(handle, cappath, capname);
525}
526
527static int cap_fremovexattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path)
528{
529 char *cappath = capencode(talloc_tos(), path);
530
531 if (!cappath) {
532 errno = ENOMEM;
533 return -1;
534 }
535 return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, cappath);
536}
537
538static int cap_setxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
539{
540 char *cappath = capencode(talloc_tos(), path);
541 char *capname = capencode(talloc_tos(), name);
542
543 if (!cappath || !capname) {
544 errno = ENOMEM;
545 return -1;
546 }
547 return SMB_VFS_NEXT_SETXATTR(handle, cappath, capname, value, size, flags);
548}
549
550static int cap_lsetxattr(vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
551{
552 char *cappath = capencode(talloc_tos(), path);
553 char *capname = capencode(talloc_tos(), name);
554
555 if (!cappath || !capname) {
556 errno = ENOMEM;
557 return -1;
558 }
559 return SMB_VFS_NEXT_LSETXATTR(handle, cappath, capname, value, size, flags);
560}
561
562static int cap_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp, const char *path, const void *value, size_t size, int flags)
563{
564 char *cappath = capencode(talloc_tos(), path);
565
566 if (!cappath) {
567 errno = ENOMEM;
568 return -1;
569 }
570 return SMB_VFS_NEXT_FSETXATTR(handle, fsp, cappath, value, size, flags);
571}
572
573static struct vfs_fn_pointers vfs_cap_fns = {
574 .disk_free = cap_disk_free,
575 .opendir = cap_opendir,
576 .readdir = cap_readdir,
577 .mkdir = cap_mkdir,
578 .rmdir = cap_rmdir,
579 .open_fn = cap_open,
580 .rename = cap_rename,
581 .stat = cap_stat,
582 .lstat = cap_lstat,
583 .unlink = cap_unlink,
584 .chmod = cap_chmod,
585 .chown = cap_chown,
586 .lchown = cap_lchown,
587 .chdir = cap_chdir,
588 .ntimes = cap_ntimes,
589 .symlink = cap_symlink,
590 .vfs_readlink = cap_readlink,
591 .link = cap_link,
592 .mknod = cap_mknod,
593 .realpath = cap_realpath,
594 .chmod_acl = cap_chmod_acl,
595 .sys_acl_get_file = cap_sys_acl_get_file,
596 .sys_acl_set_file = cap_sys_acl_set_file,
597 .sys_acl_delete_def_file = cap_sys_acl_delete_def_file,
598 .getxattr = cap_getxattr,
599 .lgetxattr = cap_lgetxattr,
600 .fgetxattr = cap_fgetxattr,
601 .listxattr = cap_listxattr,
602 .llistxattr = cap_llistxattr,
603 .removexattr = cap_removexattr,
604 .lremovexattr = cap_lremovexattr,
605 .fremovexattr = cap_fremovexattr,
606 .setxattr = cap_setxattr,
607 .lsetxattr = cap_lsetxattr,
608 .fsetxattr = cap_fsetxattr
609};
610
611NTSTATUS vfs_cap_init(void);
612NTSTATUS vfs_cap_init(void)
613{
614 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "cap",
615 &vfs_cap_fns);
616}
617
618/* For CAP functions */
619#define hex_tag ':'
620#define hex2bin(c) hex2bin_table[(unsigned char)(c)]
621#define bin2hex(c) bin2hex_table[(unsigned char)(c)]
622#define is_hex(s) ((s)[0] == hex_tag)
623
624static unsigned char hex2bin_table[256] = {
6250, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
6260, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
6270, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
6280, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */
6290000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x40 */
6300000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
6310, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */
6320000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x60 */
6330000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
6340, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */
6350, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 */
6360, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 */
6370, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 */
6380, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 */
6390, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 */
6400, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 */
6410, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 */
6420, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xf0 */
643};
644static unsigned char bin2hex_table[256] = "0123456789abcdef";
645
646/*******************************************************************
647 original code -> ":xx" - CAP format
648********************************************************************/
649
650static char *capencode(TALLOC_CTX *ctx, const char *from)
651{
652 char *out = NULL;
653 const char *p1;
654 char *to = NULL;
655 size_t len = 0;
656
657 for (p1 = from; *p1; p1++) {
658 if ((unsigned char)*p1 >= 0x80) {
659 len += 3;
660 } else {
661 len++;
662 }
663 }
664 len++;
665
666 to = TALLOC_ARRAY(ctx, char, len);
667 if (!to) {
668 return NULL;
669 }
670
671 for (out = to; *from;) {
672 /* buffer husoku error */
673 if ((unsigned char)*from >= 0x80) {
674 *out++ = hex_tag;
675 *out++ = bin2hex (((*from)>>4)&0x0f);
676 *out++ = bin2hex ((*from)&0x0f);
677 from++;
678 } else {
679 *out++ = *from++;
680 }
681 }
682 *out = '\0';
683 return to;
684}
685
686/*******************************************************************
687 CAP -> original code
688********************************************************************/
689/* ":xx" -> a byte */
690
691static char *capdecode(TALLOC_CTX *ctx, const char *from)
692{
693 const char *p1;
694 char *out = NULL;
695 char *to = NULL;
696 size_t len = 0;
697
698 for (p1 = from; *p1; len++) {
699 if (is_hex(p1)) {
700 p1 += 3;
701 } else {
702 p1++;
703 }
704 }
705 len++;
706
707 to = TALLOC_ARRAY(ctx, char, len);
708 if (!to) {
709 return NULL;
710 }
711
712 for (out = to; *from;) {
713 if (is_hex(from)) {
714 *out++ = (hex2bin(from[1])<<4) | (hex2bin(from[2]));
715 from += 3;
716 } else {
717 *out++ = *from++;
718 }
719 }
720 *out = '\0';
721 return to;
722}
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