lib/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 "replace.h"
  24 #include "system/locale.h"
  25 #include "system/time.h"
  26 #include "system/filesys.h"
  27 #include "system/wait.h"
  28 #include "tdb.h"
  29
  30 static int do_command(void);
  31 const char *cmdname;
  32 char *arg1, *arg2;
  33 size_t arg1len, arg2len;
  34 int bIterate = 0;
  35 char *line;
  36 TDB_DATA iterate_kbuf;
  37 char cmdline[1024];
  38 static int disable_mmap;
  39
  40 enum commands {
  41         CMD_CREATE_TDB,
  42         CMD_OPEN_TDB,
  43         CMD_TRANSACTION_START,
  44         CMD_TRANSACTION_COMMIT,
  45         CMD_TRANSACTION_CANCEL,
  46         CMD_ERASE,
  47         CMD_DUMP,
  48         CMD_INSERT,
  49         CMD_MOVE,
  50         CMD_STORE,
  51         CMD_SHOW,
  52         CMD_KEYS,
  53         CMD_HEXKEYS,
  54         CMD_DELETE,
  55         CMD_LIST_HASH_FREE,
  56         CMD_LIST_FREE,
  57         CMD_INFO,
  58         CMD_MMAP,
  59         CMD_SPEED,
  60         CMD_FIRST,
  61         CMD_NEXT,
  62         CMD_SYSTEM,
  63         CMD_CHECK,
  64         CMD_QUIT,
  65         CMD_HELP
  66 };
  67
  68 typedef struct {
  69         const char *name;
  70         enum commands cmd;
  71 } COMMAND_TABLE;
  72
  73 COMMAND_TABLE cmd_table[] = {
  74         {"create",      CMD_CREATE_TDB},
  75         {"open",        CMD_OPEN_TDB},
  76         {"transaction_start",   CMD_TRANSACTION_START},
  77         {"transaction_commit",  CMD_TRANSACTION_COMMIT},
  78         {"transaction_cancel",  CMD_TRANSACTION_CANCEL},
  79         {"erase",       CMD_ERASE},
  80         {"dump",        CMD_DUMP},
  81         {"insert",      CMD_INSERT},
  82         {"move",        CMD_MOVE},
  83         {"store",       CMD_STORE},
  84         {"show",        CMD_SHOW},
  85         {"keys",        CMD_KEYS},
  86         {"hexkeys",     CMD_HEXKEYS},
  87         {"delete",      CMD_DELETE},
  88         {"list",        CMD_LIST_HASH_FREE},
  89         {"free",        CMD_LIST_FREE},
  90         {"info",        CMD_INFO},
  91         {"speed",       CMD_SPEED},
  92         {"mmap",        CMD_MMAP},
  93         {"first",       CMD_FIRST},
  94         {"1",           CMD_FIRST},
  95         {"next",        CMD_NEXT},
  96         {"n",           CMD_NEXT},
  97         {"check",       CMD_CHECK},
  98         {"quit",        CMD_QUIT},
  99         {"q",           CMD_QUIT},
 100         {"!",           CMD_SYSTEM},
 101         {NULL,          CMD_HELP}
 102 };
 103
 104 struct timeval tp1,tp2;
 105
 106 static void _start_timer(void)
 107 {
 108         gettimeofday(&tp1,NULL);
 109 }
 110
 111 static double _end_timer(void)
 112 {
 113         gettimeofday(&tp2,NULL);
 114         return((tp2.tv_sec - tp1.tv_sec) +
 115                (tp2.tv_usec - tp1.tv_usec)*1.0e-6);
 116 }
 117
 118 #ifdef PRINTF_ATTRIBUTE
 119 static void tdb_log(struct tdb_context *tdb, enum tdb_debug_level level, const char *format, ...) PRINTF_ATTRIBUTE(3,4);
 120 #endif
 121 static void tdb_log(struct tdb_context *tdb, enum tdb_debug_level level, const char *format, ...)
 122 {
 123         va_list ap;
 124
 125         va_start(ap, format);
 126         vfprintf(stderr, format, ap);
 127         va_end(ap);
 128 }
 129
 130 /* a tdb tool for manipulating a tdb database */
 131
 132 static TDB_CONTEXT *tdb;
 133
 134 static int print_rec(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state);
 135 static int print_key(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state);
 136 static int print_hexkey(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state);
 137
 138 static void print_asc(const char *buf,int len)
 139 {
 140         int i;
 141
 142         /* We're probably printing ASCII strings so don't try to display
 143            the trailing NULL character. */
 144
 145         if (buf[len - 1] == 0)
 146                 len--;
 147
 148         for (i=0;i<len;i++)
 149                 printf("%c",isprint(buf[i])?buf[i]:'.');
 150 }
 151
 152 static void print_data(const char *buf,int len)
 153 {
 154         int i=0;
 155         if (len<=0) return;
 156         printf("[%03X] ",i);
 157         for (i=0;i<len;) {
 158                 printf("%02X ",(int)((unsigned char)buf[i]));
 159                 i++;
 160                 if (i%8 == 0) printf(" ");
 161                 if (i%16 == 0) {
 162                         print_asc(&buf[i-16],8); printf(" ");
 163                         print_asc(&buf[i-8],8); printf("\n");
 164                         if (i<len) printf("[%03X] ",i);
 165                 }
 166         }
 167         if (i%16) {
 168                 int n;
 169
 170                 n = 16 - (i%16);
 171                 printf(" ");
 172                 if (n>8) printf(" ");
 173                 while (n--) printf("   ");
 174
 175                 n = i%16;
 176                 if (n > 8) n = 8;
 177                 print_asc(&buf[i-(i%16)],n); printf(" ");
 178                 n = (i%16) - n;
 179                 if (n>0) print_asc(&buf[i-n],n);
 180                 printf("\n");
 181         }
 182 }
 183
 184 static void help(void)
 185 {
 186         printf("\n"
 187 "tdbtool: \n"
 188 "  create    dbname     : create a database\n"
 189 "  open      dbname     : open an existing database\n"
 190 "  transaction_start    : start a transaction\n"
 191 "  transaction_commit   : commit a transaction\n"
 192 "  transaction_cancel   : cancel a transaction\n"
 193 "  erase                : erase the database\n"
 194 "  dump                 : dump the database as strings\n"
 195 "  keys                 : dump the database keys as strings\n"
 196 "  hexkeys              : dump the database keys as hex values\n"
 197 "  info                 : print summary info about the database\n"
 198 "  insert    key  data  : insert a record\n"
 199 "  move      key  file  : move a record to a destination tdb\n"
 200 "  store     key  data  : store a record (replace)\n"
 201 "  show      key        : show a record by key\n"
 202 "  delete    key        : delete a record by key\n"
 203 "  list                 : print the database hash table and freelist\n"
 204 "  free                 : print the database freelist\n"
 205 "  check                : check the integrity of an opened database\n"
 206 "  speed                : perform speed tests on the database\n"
 207 "  ! command            : execute system command\n"
 208 "  1 | first            : print the first record\n"
 209 "  n | next             : print the next record\n"
 210 "  q | quit             : terminate\n"
 211 "  \\n                   : repeat 'next' command\n"
 212 "\n");
 213 }
 214
 215 static void terror(const char *why)
 216 {
 217         printf("%s\n", why);
 218 }
 219
 220 static void create_tdb(const char *tdbname)
 221 {
 222         struct tdb_logging_context log_ctx;
 223         log_ctx.log_fn = tdb_log;
 224
 225         if (tdb) tdb_close(tdb);
 226         tdb = tdb_open_ex(tdbname, 0, TDB_CLEAR_IF_FIRST | (disable_mmap?TDB_NOMMAP:0),
 227                           O_RDWR | O_CREAT | O_TRUNC, 0600, &log_ctx, NULL);
 228         if (!tdb) {
 229                 printf("Could not create %s: %s\n", tdbname, strerror(errno));
 230         }
 231 }
 232
 233 static void open_tdb(const char *tdbname)
 234 {
 235         struct tdb_logging_context log_ctx;
 236         log_ctx.log_fn = tdb_log;
 237
 238         if (tdb) tdb_close(tdb);
 239         tdb = tdb_open_ex(tdbname, 0, disable_mmap?TDB_NOMMAP:0, O_RDWR, 0600,
 240                           &log_ctx, NULL);
 241         if (!tdb) {
 242                 printf("Could not open %s: %s\n", tdbname, strerror(errno));
 243         }
 244 }
 245
 246 static void insert_tdb(char *keyname, size_t keylen, char* data, size_t datalen)
 247 {
 248         TDB_DATA key, dbuf;
 249
 250         if ((keyname == NULL) || (keylen == 0)) {
 251                 terror("need key");
 252                 return;
 253         }
 254
 255         key.dptr = (unsigned char *)keyname;
 256         key.dsize = keylen;
 257         dbuf.dptr = (unsigned char *)data;
 258         dbuf.dsize = datalen;
 259
 260         if (tdb_store(tdb, key, dbuf, TDB_INSERT) != 0) {
 261                 terror("insert failed");
 262         }
 263 }
 264
 265 static void store_tdb(char *keyname, size_t keylen, char* data, size_t datalen)
 266 {
 267         TDB_DATA key, dbuf;
 268
 269         if ((keyname == NULL) || (keylen == 0)) {
 270                 terror("need key");
 271                 return;
 272         }
 273
 274         if ((data == NULL) || (datalen == 0)) {
 275                 terror("need data");
 276                 return;
 277         }
 278
 279         key.dptr = (unsigned char *)keyname;
 280         key.dsize = keylen;
 281         dbuf.dptr = (unsigned char *)data;
 282         dbuf.dsize = datalen;
 283
 284         printf("Storing key:\n");
 285         print_rec(tdb, key, dbuf, NULL);
 286
 287         if (tdb_store(tdb, key, dbuf, TDB_REPLACE) != 0) {
 288                 terror("store failed");
 289         }
 290 }
 291
 292 static void show_tdb(char *keyname, size_t keylen)
 293 {
 294         TDB_DATA key, dbuf;
 295
 296         if ((keyname == NULL) || (keylen == 0)) {
 297                 terror("need key");
 298                 return;
 299         }
 300
 301         key.dptr = (unsigned char *)keyname;
 302         key.dsize = keylen;
 303
 304         dbuf = tdb_fetch(tdb, key);
 305         if (!dbuf.dptr) {
 306             terror("fetch failed");
 307             return;
 308         }
 309
 310         print_rec(tdb, key, dbuf, NULL);
 311
 312         free( dbuf.dptr );
 313
 314         return;
 315 }
 316
 317 static void delete_tdb(char *keyname, size_t keylen)
 318 {
 319         TDB_DATA key;
 320
 321         if ((keyname == NULL) || (keylen == 0)) {
 322                 terror("need key");
 323                 return;
 324         }
 325
 326         key.dptr = (unsigned char *)keyname;
 327         key.dsize = keylen;
 328
 329         if (tdb_delete(tdb, key) != 0) {
 330                 terror("delete failed");
 331         }
 332 }
 333
 334 static void move_rec(char *keyname, size_t keylen, char* tdbname)
 335 {
 336         TDB_DATA key, dbuf;
 337         TDB_CONTEXT *dst_tdb;
 338
 339         if ((keyname == NULL) || (keylen == 0)) {
 340                 terror("need key");
 341                 return;
 342         }
 343
 344         if ( !tdbname ) {
 345                 terror("need destination tdb name");
 346                 return;
 347         }
 348
 349         key.dptr = (unsigned char *)keyname;
 350         key.dsize = keylen;
 351
 352         dbuf = tdb_fetch(tdb, key);
 353         if (!dbuf.dptr) {
 354                 terror("fetch failed");
 355                 return;
 356         }
 357
 358         print_rec(tdb, key, dbuf, NULL);
 359
 360         dst_tdb = tdb_open(tdbname, 0, 0, O_RDWR, 0600);
 361         if ( !dst_tdb ) {
 362                 terror("unable to open destination tdb");
 363                 return;
 364         }
 365
 366         if (tdb_store( dst_tdb, key, dbuf, TDB_REPLACE ) != 0) {
 367                 terror("failed to move record");
 368         }
 369         else
 370                 printf("record moved\n");
 371
 372         tdb_close( dst_tdb );
 373
 374         return;
 375 }
 376
 377 static int print_rec(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 378 {
 379         printf("\nkey %d bytes\n", (int)key.dsize);
 380         print_asc((const char *)key.dptr, key.dsize);
 381         printf("\ndata %d bytes\n", (int)dbuf.dsize);
 382         print_data((const char *)dbuf.dptr, dbuf.dsize);
 383         return 0;
 384 }
 385
 386 static int print_key(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 387 {
 388         printf("key %d bytes: ", (int)key.dsize);
 389         print_asc((const char *)key.dptr, key.dsize);
 390         printf("\n");
 391         return 0;
 392 }
 393
 394 static int print_hexkey(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 395 {
 396         printf("key %d bytes\n", (int)key.dsize);
 397         print_data((const char *)key.dptr, key.dsize);
 398         printf("\n");
 399         return 0;
 400 }
 401
 402 static int total_bytes;
 403
 404 static int traverse_fn(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 405 {
 406         total_bytes += dbuf.dsize;
 407         return 0;
 408 }
 409
 410 static void info_tdb(void)
 411 {
 412         char *summary = tdb_summary(tdb);
 413
 414         if (!summary) {
 415                 printf("Error = %s\n", tdb_errorstr(tdb));
 416         } else {
 417                 printf("%s", summary);
 418                 free(summary);
 419         }
 420 }
 421
 422 static void speed_tdb(const char *tlimit)
 423 {
 424         const char *str = "store test", *str2 = "transaction test";
 425         unsigned timelimit = tlimit?atoi(tlimit):0;
 426         double t;
 427         int ops;
 428         if (timelimit == 0) timelimit = 5;
 429
 430         ops = 0;
 431         printf("Testing store speed for %u seconds\n", timelimit);
 432         _start_timer();
 433         do {
 434                 long int r = random();
 435                 TDB_DATA key, dbuf;
 436                 key.dptr = discard_const_p(uint8_t, str);
 437                 key.dsize = strlen((char *)key.dptr);
 438                 dbuf.dptr = (uint8_t *) &r;
 439                 dbuf.dsize = sizeof(r);
 440                 tdb_store(tdb, key, dbuf, TDB_REPLACE);
 441                 t = _end_timer();
 442                 ops++;
 443         } while (t < timelimit);
 444         printf("%10.3f ops/sec\n", ops/t);
 445
 446         ops = 0;
 447         printf("Testing fetch speed for %u seconds\n", timelimit);
 448         _start_timer();
 449         do {
 450                 long int r = random();
 451                 TDB_DATA key, dbuf;
 452                 key.dptr = discard_const_p(uint8_t, str);
 453                 key.dsize = strlen((char *)key.dptr);
 454                 dbuf.dptr = (uint8_t *) &r;
 455                 dbuf.dsize = sizeof(r);
 456                 tdb_fetch(tdb, key);
 457                 t = _end_timer();
 458                 ops++;
 459         } while (t < timelimit);
 460         printf("%10.3f ops/sec\n", ops/t);
 461
 462         ops = 0;
 463         printf("Testing transaction speed for %u seconds\n", timelimit);
 464         _start_timer();
 465         do {
 466                 long int r = random();
 467                 TDB_DATA key, dbuf;
 468                 key.dptr = discard_const_p(uint8_t, str2);
 469                 key.dsize = strlen((char *)key.dptr);
 470                 dbuf.dptr = (uint8_t *) &r;
 471                 dbuf.dsize = sizeof(r);
 472                 tdb_transaction_start(tdb);
 473                 tdb_store(tdb, key, dbuf, TDB_REPLACE);
 474                 tdb_transaction_commit(tdb);
 475                 t = _end_timer();
 476                 ops++;
 477         } while (t < timelimit);
 478         printf("%10.3f ops/sec\n", ops/t);
 479
 480         ops = 0;
 481         printf("Testing traverse speed for %u seconds\n", timelimit);
 482         _start_timer();
 483         do {
 484                 tdb_traverse(tdb, traverse_fn, NULL);
 485                 t = _end_timer();
 486                 ops++;
 487         } while (t < timelimit);
 488         printf("%10.3f ops/sec\n", ops/t);
 489 }
 490
 491 static void toggle_mmap(void)
 492 {
 493         disable_mmap = !disable_mmap;
 494         if (disable_mmap) {
 495                 printf("mmap is disabled\n");
 496         } else {
 497                 printf("mmap is enabled\n");
 498         }
 499 }
 500
 501 static char *tdb_getline(const char *prompt)
 502 {
 503         static char thisline[1024];
 504         char *p;
 505         fputs(prompt, stdout);
 506         thisline[0] = 0;
 507         p = fgets(thisline, sizeof(thisline)-1, stdin);
 508         if (p) p = strchr(p, '\n');
 509         if (p) *p = 0;
 510         return p?thisline:NULL;
 511 }
 512
 513 static int do_delete_fn(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf,
 514                      void *state)
 515 {
 516     return tdb_delete(the_tdb, key);
 517 }
 518
 519 static void first_record(TDB_CONTEXT *the_tdb, TDB_DATA *pkey)
 520 {
 521         TDB_DATA dbuf;
 522         *pkey = tdb_firstkey(the_tdb);
 523
 524         dbuf = tdb_fetch(the_tdb, *pkey);
 525         if (!dbuf.dptr) terror("fetch failed");
 526         else {
 527                 print_rec(the_tdb, *pkey, dbuf, NULL);
 528         }
 529 }
 530
 531 static void next_record(TDB_CONTEXT *the_tdb, TDB_DATA *pkey)
 532 {
 533         TDB_DATA dbuf;
 534         *pkey = tdb_nextkey(the_tdb, *pkey);
 535
 536         dbuf = tdb_fetch(the_tdb, *pkey);
 537         if (!dbuf.dptr)
 538                 terror("fetch failed");
 539         else
 540                 print_rec(the_tdb, *pkey, dbuf, NULL);
 541 }
 542
 543 static int count(TDB_DATA key, TDB_DATA data, void *private_data)
 544 {
 545         (*(unsigned int *)private_data)++;
 546         return 0;
 547 }
 548
 549 static void check_db(TDB_CONTEXT *the_tdb)
 550 {
 551         int tdbcount = 0;
 552         if (!the_tdb)
 553                 printf("Error: No database opened!\n");
 554         else if (tdb_check(the_tdb, count, &tdbcount) == -1)
 555                 printf("Integrity check for the opened database failed.\n");
 556         else
 557                 printf("Database integrity is OK and has %d records.\n",
 558                        tdbcount);
 559 }
 560
 561 static int do_command(void)
 562 {
 563         COMMAND_TABLE *ctp = cmd_table;
 564         enum commands mycmd = CMD_HELP;
 565         int cmd_len;
 566
 567         if (cmdname && strlen(cmdname) == 0) {
 568                 mycmd = CMD_NEXT;
 569         } else {
 570                 while (ctp->name) {
 571                         cmd_len = strlen(ctp->name);
 572                         if (strncmp(ctp->name,cmdname,cmd_len) == 0) {
 573                                 mycmd = ctp->cmd;
 574                                 break;
 575                         }
 576                         ctp++;
 577                 }
 578         }
 579
 580         switch (mycmd) {
 581         case CMD_CREATE_TDB:
 582                 bIterate = 0;
 583                 create_tdb(arg1);
 584                 return 0;
 585         case CMD_OPEN_TDB:
 586                 bIterate = 0;
 587                 open_tdb(arg1);
 588                 return 0;
 589         case CMD_SYSTEM:
 590                 /* Shell command */
 591                 if (system(arg1) == -1) {
 592                         terror("system() call failed\n");
 593                 }
 594                 return 0;
 595         case CMD_QUIT:
 596                 return 1;
 597         default:
 598                 /* all the rest require a open database */
 599                 if (!tdb) {
 600                         bIterate = 0;
 601                         terror("database not open");
 602                         help();
 603                         return 0;
 604                 }
 605                 switch (mycmd) {
 606                 case CMD_TRANSACTION_START:
 607                         bIterate = 0;
 608                         tdb_transaction_start(tdb);
 609                         return 0;
 610                 case CMD_TRANSACTION_COMMIT:
 611                         bIterate = 0;
 612                         tdb_transaction_commit(tdb);
 613                         return 0;
 614                 case CMD_TRANSACTION_CANCEL:
 615                         bIterate = 0;
 616                         tdb_transaction_cancel(tdb);
 617                         return 0;
 618                 case CMD_ERASE:
 619                         bIterate = 0;
 620                         tdb_traverse(tdb, do_delete_fn, NULL);
 621                         return 0;
 622                 case CMD_DUMP:
 623                         bIterate = 0;
 624                         tdb_traverse(tdb, print_rec, NULL);
 625                         return 0;
 626                 case CMD_INSERT:
 627                         bIterate = 0;
 628                         insert_tdb(arg1, arg1len,arg2,arg2len);
 629                         return 0;
 630                 case CMD_MOVE:
 631                         bIterate = 0;
 632                         move_rec(arg1,arg1len,arg2);
 633                         return 0;
 634                 case CMD_STORE:
 635                         bIterate = 0;
 636                         store_tdb(arg1,arg1len,arg2,arg2len);
 637                         return 0;
 638                 case CMD_SHOW:
 639                         bIterate = 0;
 640                         show_tdb(arg1, arg1len);
 641                         return 0;
 642                 case CMD_KEYS:
 643                         tdb_traverse(tdb, print_key, NULL);
 644                         return 0;
 645                 case CMD_HEXKEYS:
 646                         tdb_traverse(tdb, print_hexkey, NULL);
 647                         return 0;
 648                 case CMD_DELETE:
 649                         bIterate = 0;
 650                         delete_tdb(arg1,arg1len);
 651                         return 0;
 652                 case CMD_LIST_HASH_FREE:
 653                         tdb_dump_all(tdb);
 654                         return 0;
 655                 case CMD_LIST_FREE:
 656                         tdb_printfreelist(tdb);
 657                         return 0;
 658                 case CMD_INFO:
 659                         info_tdb();
 660                         return 0;
 661                 case CMD_SPEED:
 662                         speed_tdb(arg1);
 663                         return 0;
 664                 case CMD_MMAP:
 665                         toggle_mmap();
 666                         return 0;
 667                 case CMD_FIRST:
 668                         bIterate = 1;
 669                         first_record(tdb, &iterate_kbuf);
 670                         return 0;
 671                 case CMD_NEXT:
 672                         if (bIterate)
 673                                 next_record(tdb, &iterate_kbuf);
 674                         return 0;
 675                 case CMD_CHECK:
 676                         check_db(tdb);
 677                         return 0;
 678                 case CMD_HELP:
 679                         help();
 680                         return 0;
 681                 case CMD_CREATE_TDB:
 682                 case CMD_OPEN_TDB:
 683                 case CMD_SYSTEM:
 684                 case CMD_QUIT:
 685                         /*
 686                          * unhandled commands.  cases included here to avoid compiler
 687                          * warnings.
 688                          */
 689                         return 0;
 690                 }
 691         }
 692
 693         return 0;
 694 }
 695
 696 static char *tdb_convert_string(char *instring, size_t *sizep)
 697 {
 698         size_t length = 0;
 699         char *outp, *inp;
 700         char temp[3];
 701
 702         outp = inp = instring;
 703
 704         while (*inp) {
 705                 if (*inp == '\\') {
 706                         inp++;
 707                         if (*inp && strchr("0123456789abcdefABCDEF",(int)*inp)) {
 708                                 temp[0] = *inp++;
 709                                 temp[1] = '\0';
 710                                 if (*inp && strchr("0123456789abcdefABCDEF",(int)*inp)) {
 711                                         temp[1] = *inp++;
 712                                         temp[2] = '\0';
 713                                 }
 714                                 *outp++ = (char)strtol((const char *)temp,NULL,16);
 715                         } else {
 716                                 *outp++ = *inp++;
 717                         }
 718                 } else {
 719                         *outp++ = *inp++;
 720                 }
 721                 length++;
 722         }
 723         *sizep = length;
 724         return instring;
 725 }
 726
 727 int main(int argc, char *argv[])
 728 {
 729         cmdname = "";
 730         arg1 = NULL;
 731         arg1len = 0;
 732         arg2 = NULL;
 733         arg2len = 0;
 734
 735         if (argv[1]) {
 736                 cmdname = "open";
 737                 arg1 = argv[1];
 738                 do_command();
 739                 cmdname =  "";
 740                 arg1 = NULL;
 741         }
 742
 743         switch (argc) {
 744         case 1:
 745         case 2:
 746                 /* Interactive mode */
 747                 while ((cmdname = tdb_getline("tdb> "))) {
 748                         arg2 = arg1 = NULL;
 749                         if ((arg1 = strchr((const char *)cmdname,' ')) != NULL) {
 750                                 arg1++;
 751                                 arg2 = arg1;
 752                                 while (*arg2) {
 753                                         if (*arg2 == ' ') {
 754                                                 *arg2++ = '\0';
 755                                                 break;
 756                                         }
 757                                         if ((*arg2++ == '\\') && (*arg2 == ' ')) {
 758                                                 arg2++;
 759                                         }
 760                                 }
 761                         }
 762                         if (arg1) arg1 = tdb_convert_string(arg1,&arg1len);
 763                         if (arg2) arg2 = tdb_convert_string(arg2,&arg2len);
 764                         if (do_command()) break;
 765                 }
 766                 break;
 767         case 5:
 768                 arg2 = tdb_convert_string(argv[4],&arg2len);
 769         case 4:
 770                 arg1 = tdb_convert_string(argv[3],&arg1len);
 771         case 3:
 772                 cmdname = argv[2];
 773         default:
 774                 do_command();
 775                 break;
 776         }
 777
 778         if (tdb) tdb_close(tdb);
 779
 780         return 0;
 781 }