source3/tdb/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 2 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, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include <errno.h>
  25 #include <stdlib.h>
  26 #include <stdio.h>
  27 #include <fcntl.h>
  28 #include <unistd.h>
  29 #include <string.h>
  30 #include <fcntl.h>
  31 #include <time.h>
  32 #include <sys/mman.h>
  33 #include <sys/stat.h>
  34 #include <sys/time.h>
  35 #include <ctype.h>
  36 #include <signal.h>
  37 #include "tdb.h"
  38
  39 /* a tdb tool for manipulating a tdb database */
  40
  41 #define FSTRING_LEN 256
  42 typedef char fstring[FSTRING_LEN];
  43
  44 typedef struct connections_key {
  45         pid_t pid;
  46         int cnum;
  47         fstring name;
  48 } connections_key;
  49
  50 typedef struct connections_data {
  51         int magic;
  52         pid_t pid;
  53         int cnum;
  54         uid_t uid;
  55         gid_t gid;
  56         char name[24];
  57         char addr[24];
  58         char machine[128];
  59         time_t start;
  60 } connections_data;
  61
  62 static TDB_CONTEXT *tdb;
  63
  64 static int print_rec(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state);
  65
  66 static void print_asc(unsigned char *buf,int len)
  67 {
  68         int i;
  69
  70         /* We're probably printing ASCII strings so don't try to display
  71            the trailing NULL character. */
  72
  73         if (buf[len - 1] == 0)
  74                 len--;
  75
  76         for (i=0;i<len;i++)
  77                 printf("%c",isprint(buf[i])?buf[i]:'.');
  78 }
  79
  80 static void print_data(unsigned char *buf,int len)
  81 {
  82         int i=0;
  83         if (len<=0) return;
  84         printf("[%03X] ",i);
  85         for (i=0;i<len;) {
  86                 printf("%02X ",(int)buf[i]);
  87                 i++;
  88                 if (i%8 == 0) printf(" ");
  89                 if (i%16 == 0) {
  90                         print_asc(&buf[i-16],8); printf(" ");
  91                         print_asc(&buf[i-8],8); printf("\n");
  92                         if (i<len) printf("[%03X] ",i);
  93                 }
  94         }
  95         if (i%16) {
  96                 int n;
  97
  98                 n = 16 - (i%16);
  99                 printf(" ");
 100                 if (n>8) printf(" ");
 101                 while (n--) printf("   ");
 102
 103                 n = i%16;
 104                 if (n > 8) n = 8;
 105                 print_asc(&buf[i-(i%16)],n); printf(" ");
 106                 n = (i%16) - n;
 107                 if (n>0) print_asc(&buf[i-n],n);
 108                 printf("\n");
 109         }
 110 }
 111
 112 static void help(void)
 113 {
 114         printf("\n"
 115 "tdbtool: \n"
 116 "  create    dbname     : create a database\n"
 117 "  open      dbname     : open an existing database\n"
 118 "  erase                : erase the database\n"
 119 "  dump                 : dump the database as strings\n"
 120 "  insert    key  data  : insert a record\n"
 121 "  move      key  file  : move a record to a destination tdb\n"
 122 "  store     key  data  : store a record (replace)\n"
 123 "  show      key        : show a record by key\n"
 124 "  delete    key        : delete a record by key\n"
 125 "  list                 : print the database hash table and freelist\n"
 126 "  free                 : print the database freelist\n"
 127 "  1 | first            : print the first record\n"
 128 "  n | next             : print the next record\n"
 129 "  q | quit             : terminate\n"
 130 "  \\n                   : repeat 'next' command\n"
 131 "\n");
 132 }
 133
 134 static void terror(char *why)
 135 {
 136         printf("%s\n", why);
 137 }
 138
 139 static char *get_token(int startover)
 140 {
 141         static char tmp[1024];
 142         static char *cont = NULL;
 143         char *insert, *start;
 144         char *k = strtok(NULL, " ");
 145
 146         if (!k)
 147           return NULL;
 148
 149         if (startover)
 150           start = tmp;
 151         else
 152           start = cont;
 153
 154         strcpy(start, k);
 155         insert = start + strlen(start) - 1;
 156         while (*insert == '\\') {
 157           *insert++ = ' ';
 158           k = strtok(NULL, " ");
 159           if (!k)
 160             break;
 161           strcpy(insert, k);
 162           insert = start + strlen(start) - 1;
 163         }
 164
 165         /* Get ready for next call */
 166         cont = start + strlen(start) + 1;
 167         return start;
 168 }
 169
 170 static void create_tdb(void)
 171 {
 172         char *tok = get_token(1);
 173         if (!tok) {
 174                 help();
 175                 return;
 176         }
 177         if (tdb) tdb_close(tdb);
 178         tdb = tdb_open(tok, 0, TDB_CLEAR_IF_FIRST,
 179                        O_RDWR | O_CREAT | O_TRUNC, 0600);
 180         if (!tdb) {
 181                 printf("Could not create %s: %s\n", tok, strerror(errno));
 182         }
 183 }
 184
 185 static void open_tdb(void)
 186 {
 187         char *tok = get_token(1);
 188         if (!tok) {
 189                 help();
 190                 return;
 191         }
 192         if (tdb) tdb_close(tdb);
 193         tdb = tdb_open(tok, 0, 0, O_RDWR, 0600);
 194         if (!tdb) {
 195                 printf("Could not open %s: %s\n", tok, strerror(errno));
 196         }
 197 }
 198
 199 static void insert_tdb(void)
 200 {
 201         char *k = get_token(1);
 202         char *d = get_token(0);
 203         TDB_DATA key, dbuf;
 204
 205         if (!k || !d) {
 206                 help();
 207                 return;
 208         }
 209
 210         key.dptr = k;
 211         key.dsize = strlen(k)+1;
 212         dbuf.dptr = d;
 213         dbuf.dsize = strlen(d)+1;
 214
 215         if (tdb_store(tdb, key, dbuf, TDB_INSERT) == -1) {
 216                 terror("insert failed");
 217         }
 218 }
 219
 220 static void store_tdb(void)
 221 {
 222         char *k = get_token(1);
 223         char *d = get_token(0);
 224         TDB_DATA key, dbuf;
 225
 226         if (!k || !d) {
 227                 help();
 228                 return;
 229         }
 230
 231         key.dptr = k;
 232         key.dsize = strlen(k)+1;
 233         dbuf.dptr = d;
 234         dbuf.dsize = strlen(d)+1;
 235
 236         printf("Storing key:\n");
 237         print_rec(tdb, key, dbuf, NULL);
 238
 239         if (tdb_store(tdb, key, dbuf, TDB_REPLACE) == -1) {
 240                 terror("store failed");
 241         }
 242 }
 243
 244 static void show_tdb(void)
 245 {
 246         char *k = get_token(1);
 247         TDB_DATA key, dbuf;
 248
 249         if (!k) {
 250                 help();
 251                 return;
 252         }
 253
 254         key.dptr = k;
 255         key.dsize = strlen(k)+1;
 256
 257         dbuf = tdb_fetch(tdb, key);
 258         if (!dbuf.dptr) {
 259                 /* maybe it is non-NULL terminated key? */
 260                 key.dsize = strlen(k);
 261                 dbuf = tdb_fetch(tdb, key);
 262
 263                 if ( !dbuf.dptr ) {
 264                         terror("fetch failed");
 265                         return;
 266                 }
 267         }
 268
 269         /* printf("%s : %*.*s\n", k, (int)dbuf.dsize, (int)dbuf.dsize, dbuf.dptr); */
 270         print_rec(tdb, key, dbuf, NULL);
 271
 272         free( dbuf.dptr );
 273
 274         return;
 275 }
 276
 277 static void delete_tdb(void)
 278 {
 279         char *k = get_token(1);
 280         TDB_DATA key;
 281
 282         if (!k) {
 283                 help();
 284                 return;
 285         }
 286
 287         key.dptr = k;
 288         key.dsize = strlen(k)+1;
 289
 290         if (tdb_delete(tdb, key) != 0) {
 291                 terror("delete failed");
 292         }
 293 }
 294
 295 static void move_rec(void)
 296 {
 297         char *k = get_token(1);
 298         char *file = get_token(0);
 299         TDB_DATA key, dbuf;
 300         TDB_CONTEXT *dst_tdb;
 301
 302         if (!k) {
 303                 help();
 304                 return;
 305         }
 306
 307         if ( !file ) {
 308                 terror("need destination tdb name");
 309                 return;
 310         }
 311
 312         key.dptr = k;
 313         key.dsize = strlen(k)+1;
 314
 315         dbuf = tdb_fetch(tdb, key);
 316         if (!dbuf.dptr) {
 317                 /* maybe it is non-NULL terminated key? */
 318                 key.dsize = strlen(k);
 319                 dbuf = tdb_fetch(tdb, key);
 320
 321                 if ( !dbuf.dptr ) {
 322                         terror("fetch failed");
 323                         return;
 324                 }
 325         }
 326
 327         print_rec(tdb, key, dbuf, NULL);
 328
 329         dst_tdb = tdb_open(file, 0, 0, O_RDWR, 0600);
 330         if ( !dst_tdb ) {
 331                 terror("unable to open destination tdb");
 332                 return;
 333         }
 334
 335         if ( tdb_store( dst_tdb, key, dbuf, TDB_REPLACE ) == -1 ) {
 336                 terror("failed to move record");
 337         }
 338         else
 339                 printf("record moved\n");
 340
 341         tdb_close( dst_tdb );
 342
 343         return;
 344 }
 345
 346 #if 0
 347 static int print_conn_key(TDB_DATA key)
 348 {
 349         printf( "pid    =%5d   ", ((connections_key*)key.dptr)->pid);
 350         printf( "cnum   =%10d  ", ((connections_key*)key.dptr)->cnum);
 351         printf( "name   =[%s]\n", ((connections_key*)key.dptr)->name);
 352         return 0;
 353 }
 354
 355 static int print_conn_data(TDB_DATA dbuf)
 356 {
 357         printf( "pid    =%5d   ", ((connections_data*)dbuf.dptr)->pid);
 358         printf( "cnum   =%10d  ", ((connections_data*)dbuf.dptr)->cnum);
 359         printf( "name   =[%s]\n", ((connections_data*)dbuf.dptr)->name);
 360
 361         printf( "uid    =%5d   ",  ((connections_data*)dbuf.dptr)->uid);
 362         printf( "addr   =[%s]\n", ((connections_data*)dbuf.dptr)->addr);
 363         printf( "gid    =%5d   ",  ((connections_data*)dbuf.dptr)->gid);
 364         printf( "machine=[%s]\n", ((connections_data*)dbuf.dptr)->machine);
 365         printf( "start  = %s\n",   ctime(&((connections_data*)dbuf.dptr)->start));
 366         return 0;
 367 }
 368 #endif
 369
 370 static int print_rec(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 371 {
 372 #if 0
 373         print_conn_key(key);
 374         print_conn_data(dbuf);
 375         return 0;
 376 #else
 377         printf("\nkey %d bytes\n", key.dsize);
 378         print_asc(key.dptr, key.dsize);
 379         printf("\ndata %d bytes\n", dbuf.dsize);
 380         print_data(dbuf.dptr, dbuf.dsize);
 381         return 0;
 382 #endif
 383 }
 384
 385 static int print_key(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 386 {
 387         print_asc(key.dptr, key.dsize);
 388         printf("\n");
 389         return 0;
 390 }
 391
 392 static int total_bytes;
 393
 394 static int traverse_fn(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 395 {
 396         total_bytes += dbuf.dsize;
 397         return 0;
 398 }
 399
 400 static void info_tdb(void)
 401 {
 402         int count;
 403         total_bytes = 0;
 404         if ((count = tdb_traverse(tdb, traverse_fn, NULL) == -1))
 405                 printf("Error = %s\n", tdb_errorstr(tdb));
 406         else
 407                 printf("%d records totalling %d bytes\n", count, total_bytes);
 408 }
 409
 410 static char *tdb_getline(char *prompt)
 411 {
 412         static char line[1024];
 413         char *p;
 414         fputs(prompt, stdout);
 415         line[0] = 0;
 416         p = fgets(line, sizeof(line)-1, stdin);
 417         if (p) p = strchr(p, '\n');
 418         if (p) *p = 0;
 419         return p?line:NULL;
 420 }
 421
 422 static int do_delete_fn(TDB_CONTEXT *the_tdb, TDB_DATA key, TDB_DATA dbuf,
 423                      void *state)
 424 {
 425     return tdb_delete(the_tdb, key);
 426 }
 427
 428 static void first_record(TDB_CONTEXT *the_tdb, TDB_DATA *pkey)
 429 {
 430         TDB_DATA dbuf;
 431         *pkey = tdb_firstkey(the_tdb);
 432
 433         dbuf = tdb_fetch(the_tdb, *pkey);
 434         if (!dbuf.dptr) terror("fetch failed");
 435         else {
 436                 /* printf("%s : %*.*s\n", k, (int)dbuf.dsize, (int)dbuf.dsize, dbuf.dptr); */
 437                 print_rec(the_tdb, *pkey, dbuf, NULL);
 438         }
 439 }
 440
 441 static void next_record(TDB_CONTEXT *the_tdb, TDB_DATA *pkey)
 442 {
 443         TDB_DATA dbuf;
 444         *pkey = tdb_nextkey(the_tdb, *pkey);
 445
 446         dbuf = tdb_fetch(the_tdb, *pkey);
 447         if (!dbuf.dptr)
 448                 terror("fetch failed");
 449         else
 450                 /* printf("%s : %*.*s\n", k, (int)dbuf.dsize, (int)dbuf.dsize, dbuf.dptr); */
 451                 print_rec(the_tdb, *pkey, dbuf, NULL);
 452 }
 453
 454 int main(int argc, char *argv[])
 455 {
 456     int bIterate = 0;
 457     char *line;
 458     char *tok;
 459         TDB_DATA iterate_kbuf;
 460
 461     if (argv[1]) {
 462         static char tmp[1024];
 463         sprintf(tmp, "open %s", argv[1]);
 464         tok=strtok(tmp," ");
 465         open_tdb();
 466     }
 467
 468     while ((line = tdb_getline("tdb> "))) {
 469
 470         /* Shell command */
 471
 472         if (line[0] == '!') {
 473             system(line + 1);
 474             continue;
 475         }
 476
 477         if ((tok = strtok(line," "))==NULL) {
 478            if (bIterate)
 479               next_record(tdb, &iterate_kbuf);
 480            continue;
 481         }
 482         if (strcmp(tok,"create") == 0) {
 483             bIterate = 0;
 484             create_tdb();
 485             continue;
 486         } else if (strcmp(tok,"open") == 0) {
 487             open_tdb();
 488             continue;
 489         } else if ((strcmp(tok, "q") == 0) ||
 490                    (strcmp(tok, "quit") == 0)) {
 491             break;
 492         }
 493
 494         /* all the rest require a open database */
 495         if (!tdb) {
 496             bIterate = 0;
 497             terror("database not open");
 498             help();
 499             continue;
 500         }
 501
 502         if (strcmp(tok,"insert") == 0) {
 503             bIterate = 0;
 504             insert_tdb();
 505         } else if (strcmp(tok,"store") == 0) {
 506             bIterate = 0;
 507             store_tdb();
 508         } else if (strcmp(tok,"show") == 0) {
 509             bIterate = 0;
 510             show_tdb();
 511         } else if (strcmp(tok,"erase") == 0) {
 512             bIterate = 0;
 513             tdb_traverse(tdb, do_delete_fn, NULL);
 514         } else if (strcmp(tok,"delete") == 0) {
 515             bIterate = 0;
 516             delete_tdb();
 517         } else if (strcmp(tok,"dump") == 0) {
 518             bIterate = 0;
 519             tdb_traverse(tdb, print_rec, NULL);
 520         } else if (strcmp(tok,"move") == 0) {
 521             bIterate = 0;
 522             move_rec();
 523         } else if (strcmp(tok,"list") == 0) {
 524             tdb_dump_all(tdb);
 525         } else if (strcmp(tok, "free") == 0) {
 526             tdb_printfreelist(tdb);
 527         } else if (strcmp(tok,"info") == 0) {
 528             info_tdb();
 529         } else if ( (strcmp(tok, "1") == 0) ||
 530                     (strcmp(tok, "first") == 0)) {
 531             bIterate = 1;
 532             first_record(tdb, &iterate_kbuf);
 533         } else if ((strcmp(tok, "n") == 0) ||
 534                    (strcmp(tok, "next") == 0)) {
 535             next_record(tdb, &iterate_kbuf);
 536         } else if ((strcmp(tok, "keys") == 0)) {
 537                 bIterate = 0;
 538                 tdb_traverse(tdb, print_key, NULL);
 539         } else {
 540             help();
 541         }
 542     }
 543
 544     if (tdb) tdb_close(tdb);
 545
 546     return 0;
 547 }