git.ozlabs.org Git - ccan/blob - ccan/tdb/tools/tdbtool.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Samba database functions
   4    Copyright (C) Andrew Tridgell              1999-2000
   5    Copyright (C) Paul `Rusty' Russell              2000
   6    Copyright (C) Jeremy Allison                    2000
   7    Copyright (C) Andrew Esh                        2001
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include <ccan/tdb/tdb.h>
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26 #include <ctype.h>
  27 #include <sys/time.h>
  28 #include <sys/types.h>
  29 #include <sys/stat.h>
  30 #include <fcntl.h>
  31 #include <errno.h>
  32 #include <string.h>
  33 #include <stdarg.h>
  34
  35 static int do_command(void);
  36 const char *cmdname;
  37 char *arg1, *arg2;
  38 size_t arg1len, arg2len;
  39 int bIterate = 0;
  40 char *line;
  41 TDB_DATA iterate_kbuf;
  42 char cmdline[1024];
  43 static int disable_mmap;
  44
  45 enum commands {
  46         CMD_CREATE_TDB,
  47         CMD_OPEN_TDB,
  48         CMD_TRANSACTION_START,
  49         CMD_TRANSACTION_COMMIT,
  50         CMD_TRANSACTION_CANCEL,
  51         CMD_ERASE,
  52         CMD_DUMP,
  53         CMD_INSERT,
  54         CMD_MOVE,
  55         CMD_STORE,
  56         CMD_SHOW,
  57         CMD_KEYS,
  58         CMD_HEXKEYS,
  59         CMD_DELETE,
  60         CMD_LIST_HASH_FREE,
  61         CMD_LIST_FREE,
  62         CMD_INFO,
  63         CMD_MMAP,
  64         CMD_SPEED,
  65         CMD_FIRST,
  66         CMD_NEXT,
  67         CMD_SYSTEM,
  68         CMD_CHECK,
  69         CMD_QUIT,
  70         CMD_HELP
  71 };
  72
  73 typedef struct {
  74         const char *name;
  75         enum commands cmd;
  76 } COMMAND_TABLE;
  77
  78 COMMAND_TABLE cmd_table[] = {
  79         {"create",      CMD_CREATE_TDB},
  80         {"open",        CMD_OPEN_TDB},
  81         {"transaction_start",   CMD_TRANSACTION_START},
  82         {"transaction_commit",  CMD_TRANSACTION_COMMIT},
  83         {"transaction_cancel",  CMD_TRANSACTION_CANCEL},
  84         {"erase",       CMD_ERASE},
  85         {"dump",        CMD_DUMP},
  86         {"insert",      CMD_INSERT},
  87         {"move",        CMD_MOVE},
  88         {"store",       CMD_STORE},
  89         {"show",        CMD_SHOW},
  90         {"keys",        CMD_KEYS},
  91         {"hexkeys",     CMD_HEXKEYS},
  92         {"delete",      CMD_DELETE},
  93         {"list",        CMD_LIST_HASH_FREE},
  94         {"free",        CMD_LIST_FREE},
  95         {"info",        CMD_INFO},
  96         {"speed",       CMD_SPEED},
  97         {"mmap",        CMD_MMAP},
  98         {"first",       CMD_FIRST},
  99         {"1",           CMD_FIRST},
 100         {"next",        CMD_NEXT},
 101         {"n",           CMD_NEXT},
 102         {"check",       CMD_CHECK},
 103         {"quit",        CMD_QUIT},
 104         {"q",           CMD_QUIT},
 105         {"!",           CMD_SYSTEM},
 106         {NULL,          CMD_HELP}
 107 };
 108
 109 struct timeval tp1,tp2;
 110
 111 static void _start_timer(void)
 112 {
 113         gettimeofday(&tp1,NULL);
 114 }
 115
 116 static double _end_timer(void)
 117 {
 118         gettimeofday(&tp2,NULL);
 119         return((tp2.tv_sec - tp1.tv_sec) +
 120                (tp2.tv_usec - tp1.tv_usec)*1.0e-6);
 121 }
 122
 123 static void tdb_log(struct tdb_context *tdb, enum tdb_debug_level level, const char *format, ...)
 124 {
 125         va_list ap;
 126
 127         va_start(ap, format);
 128         vfprintf(stderr, format, ap);
 129         va_end(ap);
 130 }
 131
 132 /* a tdb tool for manipulating a tdb database */
 133
 134 static TDB_CONTEXT *tdb;
 135
 136 static int print_rec(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state);
 137 static int print_key(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state);
 138 static int print_hexkey(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state);
 139
 140 static void print_asc(const char *buf,int len)
 141 {
 142         int i;
 143
 144         /* We're probably printing ASCII strings so don't try to display
 145            the trailing NULL character. */
 146
 147         if (buf[len - 1] == 0)
 148                 len--;
 149
 150         for (i=0;i<len;i++)
 151                 printf("%c",isprint(buf[i])?buf[i]:'.');
 152 }
 153
 154 static void print_data(const char *buf,int len)
 155 {
 156         int i=0;
 157         if (len<=0) return;
 158         printf("[%03X] ",i);
 159         for (i=0;i<len;) {
 160                 printf("%02X ",(int)((unsigned char)buf[i]));
 161                 i++;
 162                 if (i%8 == 0) printf(" ");
 163                 if (i%16 == 0) {
 164                         print_asc(&buf[i-16],8); printf(" ");
 165                         print_asc(&buf[i-8],8); printf("\n");
 166                         if (i<len) printf("[%03X] ",i);
 167                 }
 168         }
 169         if (i%16) {
 170                 int n;
 171
 172                 n = 16 - (i%16);
 173                 printf(" ");
 174                 if (n>8) printf(" ");
 175                 while (n--) printf("   ");
 176
 177                 n = i%16;
 178                 if (n > 8) n = 8;
 179                 print_asc(&buf[i-(i%16)],n); printf(" ");
 180                 n = (i%16) - n;
 181                 if (n>0) print_asc(&buf[i-n],n);
 182                 printf("\n");
 183         }
 184 }
 185
 186 static void help(void)
 187 {
 188         printf("\n"
 189 "tdbtool: \n"
 190 "  create    dbname     : create a database\n"
 191 "  open      dbname     : open an existing database\n"
 192 "  transaction_start    : start a transaction\n"
 193 "  transaction_commit   : commit a transaction\n"
 194 "  transaction_cancel   : cancel a transaction\n"
 195 "  erase                : erase the database\n"
 196 "  dump                 : dump the database as strings\n"
 197 "  keys                 : dump the database keys as strings\n"
 198 "  hexkeys              : dump the database keys as hex values\n"
 199 "  info                 : print summary info about the database\n"
 200 "  insert    key  data  : insert a record\n"
 201 "  move      key  file  : move a record to a destination tdb\n"
 202 "  store     key  data  : store a record (replace)\n"
 203 "  show      key        : show a record by key\n"
 204 "  delete    key        : delete a record by key\n"
 205 "  list                 : print the database hash table and freelist\n"
 206 "  free                 : print the database freelist\n"
 207 "  check                : check the integrity of an opened database\n"
 208 "  speed                : perform speed tests on the database\n"
 209 "  ! command            : execute system command\n"
 210 "  1 | first            : print the first record\n"
 211 "  n | next             : print the next record\n"
 212 "  q | quit             : terminate\n"
 213 "  \\n                   : repeat 'next' command\n"
 214 "\n");
 215 }
 216
 217 static void terror(const char *why)
 218 {
 219         printf("%s\n", why);
 220 }
 221
 222 static void create_tdb(const char *tdbname)
 223 {
 224         struct tdb_logging_context log_ctx;
 225         log_ctx.log_fn = tdb_log;
 226
 227         if (tdb) tdb_close(tdb);
 228         tdb = tdb_open_ex(tdbname, 0, TDB_CLEAR_IF_FIRST | (disable_mmap?TDB_NOMMAP:0),
 229                           O_RDWR | O_CREAT | O_TRUNC, 0600, &log_ctx, NULL);
 230         if (!tdb) {
 231                 printf("Could not create %s: %s\n", tdbname, strerror(errno));
 232         }
 233 }
 234
 235 static void open_tdb(const char *tdbname)
 236 {
 237         struct tdb_logging_context log_ctx;
 238         log_ctx.log_fn = tdb_log;
 239
 240         if (tdb) tdb_close(tdb);
 241         tdb = tdb_open_ex(tdbname, 0, disable_mmap?TDB_NOMMAP:0, O_RDWR, 0600,
 242                           &log_ctx, NULL);
 243         if (!tdb) {
 244                 printf("Could not open %s: %s\n", tdbname, strerror(errno));
 245         }
 246 }
 247
 248 static void insert_tdb(char *keyname, size_t keylen, char* data, size_t datalen)
 249 {
 250         TDB_DATA key, dbuf;
 251
 252         if ((keyname == NULL) || (keylen == 0)) {
 253                 terror("need key");
 254                 return;
 255         }
 256
 257         key.dptr = (unsigned char *)keyname;
 258         key.dsize = keylen;
 259         dbuf.dptr = (unsigned char *)data;
 260         dbuf.dsize = datalen;
 261
 262         if (tdb_store(tdb, key, dbuf, TDB_INSERT) == -1) {
 263                 terror("insert failed");
 264         }
 265 }
 266
 267 static void store_tdb(char *keyname, size_t keylen, char* data, size_t datalen)
 268 {
 269         TDB_DATA key, dbuf;
 270
 271         if ((keyname == NULL) || (keylen == 0)) {
 272                 terror("need key");
 273                 return;
 274         }
 275
 276         if ((data == NULL) || (datalen == 0)) {
 277                 terror("need data");
 278                 return;
 279         }
 280
 281         key.dptr = (unsigned char *)keyname;
 282         key.dsize = keylen;
 283         dbuf.dptr = (unsigned char *)data;
 284         dbuf.dsize = datalen;
 285
 286         printf("Storing key:\n");
 287         print_rec(tdb, key, dbuf, NULL);
 288
 289         if (tdb_store(tdb, key, dbuf, TDB_REPLACE) == -1) {
 290                 terror("store failed");
 291         }
 292 }
 293
 294 static void show_tdb(char *keyname, size_t keylen)
 295 {
 296         TDB_DATA key, dbuf;
 297
 298         if ((keyname == NULL) || (keylen == 0)) {
 299                 terror("need key");
 300                 return;
 301         }
 302
 303         key.dptr = (unsigned char *)keyname;
 304         key.dsize = keylen;
 305
 306         dbuf = tdb_fetch(tdb, key);
 307         if (!dbuf.dptr) {
 308             terror("fetch failed");
 309             return;
 310         }
 311
 312         print_rec(tdb, key, dbuf, NULL);
 313
 314         free( dbuf.dptr );
 315
 316         return;
 317 }
 318
 319 static void delete_tdb(char *keyname, size_t keylen)
 320 {
 321         TDB_DATA key;
 322
 323         if ((keyname == NULL) || (keylen == 0)) {
 324                 terror("need key");
 325                 return;
 326         }
 327
 328         key.dptr = (unsigned char *)keyname;
 329         key.dsize = keylen;
 330
 331         if (tdb_delete(tdb, key) != 0) {
 332                 terror("delete failed");
 333         }
 334 }
 335
 336 static void move_rec(char *keyname, size_t keylen, char* tdbname)
 337 {
 338         TDB_DATA key, dbuf;
 339         TDB_CONTEXT *dst_tdb;
 340
 341         if ((keyname == NULL) || (keylen == 0)) {
 342                 terror("need key");
 343                 return;
 344         }
 345
 346         if ( !tdbname ) {
 347                 terror("need destination tdb name");
 348                 return;
 349         }
 350
 351         key.dptr = (unsigned char *)keyname;
 352         key.dsize = keylen;
 353
 354         dbuf = tdb_fetch(tdb, key);
 355         if (!dbuf.dptr) {
 356                 terror("fetch failed");
 357                 return;
 358         }
 359
 360         print_rec(tdb, key, dbuf, NULL);
 361
 362         dst_tdb = tdb_open(tdbname, 0, 0, O_RDWR, 0600);
 363         if ( !dst_tdb ) {
 364                 terror("unable to open destination tdb");
 365                 return;
 366         }
 367
 368         if ( tdb_store( dst_tdb, key, dbuf, TDB_REPLACE ) == -1 ) {
 369                 terror("failed to move record");
 370         }
 371         else
 372                 printf("record moved\n");
 373
 374         tdb_close( dst_tdb );
 375
 376         return;
 377 }
 378
 379 static int print_rec(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 380 {
 381         printf("\nkey %d bytes\n", (int)key.dsize);
 382         print_asc((const char *)key.dptr, key.dsize);
 383         printf("\ndata %d bytes\n", (int)dbuf.dsize);
 384         print_data((const char *)dbuf.dptr, dbuf.dsize);
 385         return 0;
 386 }
 387
 388 static int print_key(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 389 {
 390         printf("key %d bytes: ", (int)key.dsize);
 391         print_asc((const char *)key.dptr, key.dsize);
 392         printf("\n");
 393         return 0;
 394 }
 395
 396 static int print_hexkey(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 397 {
 398         printf("key %d bytes\n", (int)key.dsize);
 399         print_data((const char *)key.dptr, key.dsize);
 400         printf("\n");
 401         return 0;
 402 }
 403
 404 static int total_bytes;
 405
 406 static int traverse_fn(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 407 {
 408         total_bytes += dbuf.dsize;
 409         return 0;
 410 }
 411
 412 static void info_tdb(void)
 413 {
 414         int count;
 415         total_bytes = 0;
 416         if ((count = tdb_traverse(tdb, traverse_fn, NULL)) == -1)
 417                 printf("Error = %s\n", tdb_errorstr(tdb));
 418         else
 419                 printf("%d records totalling %d bytes\n", count, total_bytes);
 420 }
 421
 422 static void speed_tdb(const char *tlimit)
 423 {
 424         unsigned timelimit = tlimit?atoi(tlimit):0;
 425         double t;
 426         int ops;
 427         if (timelimit == 0) timelimit = 5;
 428
 429         ops = 0;
 430         printf("Testing store speed for %u seconds\n", timelimit);
 431         _start_timer();
 432         do {
 433                 long int r = random();
 434                 TDB_DATA key, dbuf;
 435                 key.dptr = (unsigned char *)"store test";
 436                 key.dsize = strlen((char *)key.dptr);
 437                 dbuf.dptr = (unsigned char *)&r;
 438                 dbuf.dsize = sizeof(r);
 439                 tdb_store(tdb, key, dbuf, TDB_REPLACE);
 440                 t = _end_timer();
 441                 ops++;
 442         } while (t < timelimit);
 443         printf("%10.3f ops/sec\n", ops/t);
 444
 445         ops = 0;
 446         printf("Testing fetch speed for %u seconds\n", timelimit);
 447         _start_timer();
 448         do {
 449                 long int r = random();
 450                 TDB_DATA key, dbuf;
 451                 key.dptr = (unsigned char *)"store test";
 452                 key.dsize = strlen((char *)key.dptr);
 453                 dbuf.dptr = (unsigned char *)&r;
 454                 dbuf.dsize = sizeof(r);
 455                 tdb_fetch(tdb, key);
 456                 t = _end_timer();
 457                 ops++;
 458         } while (t < timelimit);
 459         printf("%10.3f ops/sec\n", ops/t);
 460
 461         ops = 0;
 462         printf("Testing transaction speed for %u seconds\n", timelimit);
 463         _start_timer();
 464         do {
 465                 long int r = random();
 466                 TDB_DATA key, dbuf;
 467                 key.dptr = (unsigned char *)"transaction test";
 468                 key.dsize = strlen((char *)key.dptr);
 469                 dbuf.dptr = (unsigned char *)&r;
 470                 dbuf.dsize = sizeof(r);
 471                 tdb_transaction_start(tdb);
 472                 tdb_store(tdb, key, dbuf, TDB_REPLACE);
 473                 tdb_transaction_commit(tdb);
 474                 t = _end_timer();
 475                 ops++;
 476         } while (t < timelimit);
 477         printf("%10.3f ops/sec\n", ops/t);
 478
 479         ops = 0;
 480         printf("Testing traverse speed for %u seconds\n", timelimit);
 481         _start_timer();
 482         do {
 483                 tdb_traverse(tdb, traverse_fn, NULL);
 484                 t = _end_timer();
 485                 ops++;
 486         } while (t < timelimit);
 487         printf("%10.3f ops/sec\n", ops/t);
 488 }
 489
 490 static void toggle_mmap(void)
 491 {
 492         disable_mmap = !disable_mmap;
 493         if (disable_mmap) {
 494                 printf("mmap is disabled\n");
 495         } else {
 496                 printf("mmap is enabled\n");
 497         }
 498 }
 499
 500 static char *tdb_getline(const char *prompt)
 501 {
 502         static char thisline[1024];
 503         char *p;
 504         fputs(prompt, stdout);
 505         thisline[0] = 0;
 506         p = fgets(thisline, sizeof(thisline)-1, stdin);
 507         if (p) p = strchr(p, '\n');
 508         if (p) *p = 0;
 509         return p?thisline:NULL;
 510 }
 511
 512 static int do_delete_fn(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf,
 513                      void *state)
 514 {
 515     return tdb_delete(the_tdb, key);
 516 }
 517
 518 static void first_record(TDB_CONTEXT *the_tdb, TDB_DATA *pkey)
 519 {
 520         TDB_DATA dbuf;
 521         *pkey = tdb_firstkey(the_tdb);
 522
 523         dbuf = tdb_fetch(the_tdb, *pkey);
 524         if (!dbuf.dptr) terror("fetch failed");
 525         else {
 526                 print_rec(the_tdb, *pkey, dbuf, NULL);
 527         }
 528 }
 529
 530 static void next_record(TDB_CONTEXT *the_tdb, TDB_DATA *pkey)
 531 {
 532         TDB_DATA dbuf;
 533         *pkey = tdb_nextkey(the_tdb, *pkey);
 534
 535         dbuf = tdb_fetch(the_tdb, *pkey);
 536         if (!dbuf.dptr)
 537                 terror("fetch failed");
 538         else
 539                 print_rec(the_tdb, *pkey, dbuf, NULL);
 540 }
 541
 542 static void check_db(TDB_CONTEXT *the_tdb)
 543 {
 544         if (!the_tdb) {
 545                 printf("Error: No database opened!\n");
 546         } else {
 547                 if (tdb_check(the_tdb, NULL, NULL) == -1)
 548                         printf("Integrity check for the opened database failed.\n");
 549                 else
 550                         printf("Database integrity is OK.\n");
 551         }
 552 }
 553
 554 static int do_command(void)
 555 {
 556         COMMAND_TABLE *ctp = cmd_table;
 557         enum commands mycmd = CMD_HELP;
 558         int cmd_len;
 559
 560         if (cmdname && strlen(cmdname) == 0) {
 561                 mycmd = CMD_NEXT;
 562         } else {
 563                 while (ctp->name) {
 564                         cmd_len = strlen(ctp->name);
 565                         if (strncmp(ctp->name,cmdname,cmd_len) == 0) {
 566                                 mycmd = ctp->cmd;
 567                                 break;
 568                         }
 569                         ctp++;
 570                 }
 571         }
 572
 573         switch (mycmd) {
 574         case CMD_CREATE_TDB:
 575                 bIterate = 0;
 576                 create_tdb(arg1);
 577                 return 0;
 578         case CMD_OPEN_TDB:
 579                 bIterate = 0;
 580                 open_tdb(arg1);
 581                 return 0;
 582         case CMD_SYSTEM:
 583                 /* Shell command */
 584                 if (system(arg1) == -1) {
 585                         terror("system() call failed\n");
 586                 }
 587                 return 0;
 588         case CMD_QUIT:
 589                 return 1;
 590         default:
 591                 /* all the rest require a open database */
 592                 if (!tdb) {
 593                         bIterate = 0;
 594                         terror("database not open");
 595                         help();
 596                         return 0;
 597                 }
 598                 switch (mycmd) {
 599                 case CMD_TRANSACTION_START:
 600                         bIterate = 0;
 601                         tdb_transaction_start(tdb);
 602                         return 0;
 603                 case CMD_TRANSACTION_COMMIT:
 604                         bIterate = 0;
 605                         tdb_transaction_commit(tdb);
 606                         return 0;
 607                 case CMD_TRANSACTION_CANCEL:
 608                         bIterate = 0;
 609                         tdb_transaction_cancel(tdb);
 610                         return 0;
 611                 case CMD_ERASE:
 612                         bIterate = 0;
 613                         tdb_traverse(tdb, do_delete_fn, NULL);
 614                         return 0;
 615                 case CMD_DUMP:
 616                         bIterate = 0;
 617                         tdb_traverse(tdb, print_rec, NULL);
 618                         return 0;
 619                 case CMD_INSERT:
 620                         bIterate = 0;
 621                         insert_tdb(arg1, arg1len,arg2,arg2len);
 622                         return 0;
 623                 case CMD_MOVE:
 624                         bIterate = 0;
 625                         move_rec(arg1,arg1len,arg2);
 626                         return 0;
 627                 case CMD_STORE:
 628                         bIterate = 0;
 629                         store_tdb(arg1,arg1len,arg2,arg2len);
 630                         return 0;
 631                 case CMD_SHOW:
 632                         bIterate = 0;
 633                         show_tdb(arg1, arg1len);
 634                         return 0;
 635                 case CMD_KEYS:
 636                         tdb_traverse(tdb, print_key, NULL);
 637                         return 0;
 638                 case CMD_HEXKEYS:
 639                         tdb_traverse(tdb, print_hexkey, NULL);
 640                         return 0;
 641                 case CMD_DELETE:
 642                         bIterate = 0;
 643                         delete_tdb(arg1,arg1len);
 644                         return 0;
 645                 case CMD_LIST_HASH_FREE:
 646                         tdb_dump_all(tdb);
 647                         return 0;
 648                 case CMD_LIST_FREE:
 649                         tdb_printfreelist(tdb);
 650                         return 0;
 651                 case CMD_INFO:
 652                         info_tdb();
 653                         return 0;
 654                 case CMD_SPEED:
 655                         speed_tdb(arg1);
 656                         return 0;
 657                 case CMD_MMAP:
 658                         toggle_mmap();
 659                         return 0;
 660                 case CMD_FIRST:
 661                         bIterate = 1;
 662                         first_record(tdb, &iterate_kbuf);
 663                         return 0;
 664                 case CMD_NEXT:
 665                         if (bIterate)
 666                                 next_record(tdb, &iterate_kbuf);
 667                         return 0;
 668                 case CMD_CHECK:
 669                         check_db(tdb);
 670                         return 0;
 671                 case CMD_HELP:
 672                         help();
 673                         return 0;
 674                 case CMD_CREATE_TDB:
 675                 case CMD_OPEN_TDB:
 676                 case CMD_SYSTEM:
 677                 case CMD_QUIT:
 678                         /*
 679                          * unhandled commands.  cases included here to avoid compiler
 680                          * warnings.
 681                          */
 682                         return 0;
 683                 }
 684         }
 685
 686         return 0;
 687 }
 688
 689 static char *convert_string(char *instring, size_t *sizep)
 690 {
 691         size_t length = 0;
 692         char *outp, *inp;
 693         char temp[3];
 694
 695         outp = inp = instring;
 696
 697         while (*inp) {
 698                 if (*inp == '\\') {
 699                         inp++;
 700                         if (*inp && strchr("0123456789abcdefABCDEF",(int)*inp)) {
 701                                 temp[0] = *inp++;
 702                                 temp[1] = '\0';
 703                                 if (*inp && strchr("0123456789abcdefABCDEF",(int)*inp)) {
 704                                         temp[1] = *inp++;
 705                                         temp[2] = '\0';
 706                                 }
 707                                 *outp++ = (char)strtol((const char *)temp,NULL,16);
 708                         } else {
 709                                 *outp++ = *inp++;
 710                         }
 711                 } else {
 712                         *outp++ = *inp++;
 713                 }
 714                 length++;
 715         }
 716         *sizep = length;
 717         return instring;
 718 }
 719
 720 int main(int argc, char *argv[])
 721 {
 722         cmdname = "";
 723         arg1 = NULL;
 724         arg1len = 0;
 725         arg2 = NULL;
 726         arg2len = 0;
 727
 728         if (argv[1]) {
 729                 cmdname = "open";
 730                 arg1 = argv[1];
 731                 do_command();
 732                 cmdname =  "";
 733                 arg1 = NULL;
 734         }
 735
 736         switch (argc) {
 737         case 1:
 738         case 2:
 739                 /* Interactive mode */
 740                 while ((cmdname = tdb_getline("tdb> "))) {
 741                         arg2 = arg1 = NULL;
 742                         if ((arg1 = strchr((const char *)cmdname,' ')) != NULL) {
 743                                 arg1++;
 744                                 arg2 = arg1;
 745                                 while (*arg2) {
 746                                         if (*arg2 == ' ') {
 747                                                 *arg2++ = '\0';
 748                                                 break;
 749                                         }
 750                                         if ((*arg2++ == '\\') && (*arg2 == ' ')) {
 751                                                 arg2++;
 752                                         }
 753                                 }
 754                         }
 755                         if (arg1) arg1 = convert_string(arg1,&arg1len);
 756                         if (arg2) arg2 = convert_string(arg2,&arg2len);
 757                         if (do_command()) break;
 758                 }
 759                 break;
 760         case 5:
 761                 arg2 = convert_string(argv[4],&arg2len);
 762         case 4:
 763                 arg1 = convert_string(argv[3],&arg1len);
 764         case 3:
 765                 cmdname = argv[2];
 766         default:
 767                 do_command();
 768                 break;
 769         }
 770
 771         if (tdb) tdb_close(tdb);
 772
 773         return 0;
 774 }