source3/modules/vfs_cap.c

   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 */
  28 static char *capencode(TALLOC_CTX *ctx, const char *from);
  29 static char *capdecode(TALLOC_CTX *ctx, const char *from);
  30
  31 static 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
  45 static 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
  56 static 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
  89 static 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
 100 static 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
 111 static 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
 137 static 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
 183 static 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
 207 static 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
 231 static 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
 261 static 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
 272 static 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
 283 static 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
 294 static 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
 306 static 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
 339 static 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
 352 static 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
 364 static 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
 376 static 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
 387 static 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
 399 static 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
 411 static 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
 422 static 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
 433 static 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
 444 static 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
 456 static ssize_t cap_lgetxattr(vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t
 457 size)
 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
 469 static 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
 480 static 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
 491 static 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
 502 static 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
 514 static 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
 526 static 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
 537 static 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
 549 static 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
 561 static 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
 572 static 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
 610 NTSTATUS vfs_cap_init(void);
 611 NTSTATUS 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
 623 static unsigned char hex2bin_table[256] = {
 624 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
 625 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
 626 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
 627 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */
 628 0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x40 */
 629 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
 630 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */
 631 0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x60 */
 632 0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
 633 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */
 634 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 */
 635 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 */
 636 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 */
 637 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 */
 638 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 */
 639 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 */
 640 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 */
 641 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0  /* 0xf0 */
 642 };
 643 static unsigned char bin2hex_table[256] = "0123456789abcdef";
 644
 645 /*******************************************************************
 646   original code -> ":xx"  - CAP format
 647 ********************************************************************/
 648
 649 static 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
 690 static 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 }