bandb/bantool.c

   1 /**
   2  *  ircd-ratbox: A slightly useful ircd.
   3  *  bantool.c: The ircd-ratbox database managment tool.
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2008 ircd-ratbox development team
   8  *  Copyright (C) 2008 Daniel J Reidy <dubkat@gmail.com>
   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 2 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, write to the Free Software
  22  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  23  *  USA
  24  *
  25  *  $Id: bantool.c 26164 2008-10-26 19:52:43Z androsyn $
  26  *
  27  *
  28  * The following server admins have either contributed various configs to test against,
  29  * or helped with debugging and feature requests. Many thanks to them.
  30  * stevoo / efnet.port80.se
  31  * AndroSyn / irc2.choopa.net, irc.igs.ca
  32  * Salvation / irc.blessed.net
  33  * JamesOff / efnet.demon.co.uk
  34  *
  35  * Thanks to AndroSyn for challenging me to learn C on the fly :)
  36  * BUGS Direct Question, Bug Reports, and Feature Requests to #ratbox on EFnet.
  37  * BUGS Complaints >/dev/null
  38  *
  39  */
  40
  41 #define _XOPEN_SOURCE
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <time.h>
  45
  46 #include "stdinc.h"
  47 #include "common.h"
  48 #include "rsdb.h"
  49
  50 #define EmptyString(x) ((x == NULL) || (*(x) == '\0'))
  51 #define CheckEmpty(x) EmptyString(x) ? "" : x
  52
  53 #define BT_VERSION "0.4.1"
  54
  55 typedef enum
  56 {
  57         BANDB_KLINE,
  58         BANDB_KLINE_PERM,
  59         BANDB_DLINE,
  60         BANDB_DLINE_PERM,
  61         BANDB_XLINE,
  62         BANDB_XLINE_PERM,
  63         BANDB_RESV,
  64         BANDB_RESV_PERM,
  65         LAST_BANDB_TYPE
  66 } bandb_type;
  67
  68
  69 static char bandb_letter[LAST_BANDB_TYPE] = {
  70         'K', 'K', 'D', 'D', 'X', 'X', 'R', 'R'
  71 };
  72
  73 static const char *bandb_table[LAST_BANDB_TYPE] = {
  74         "kline", "kline", "dline", "dline", "xline", "xline", "resv", "resv"
  75 };
  76
  77 static const char *bandb_suffix[LAST_BANDB_TYPE] = {
  78         "", ".perm",
  79         "", ".perm",
  80         "", ".perm",
  81         "", ".perm"
  82 };
  83
  84 static char me[PATH_MAX];
  85
  86 /* *INDENT-OFF* */
  87 /* report counters */
  88 struct counter
  89 {
  90         unsigned int klines;
  91         unsigned int dlines;
  92         unsigned int xlines;
  93         unsigned int resvs;
  94         unsigned int error;
  95 } count = {0, 0, 0, 0, 0};
  96
  97 /* flags set by command line options */
  98 struct flags
  99 {
 100         int none;
 101         int export;
 102         int import;
 103         int verify;
 104         int vacuum;
 105         int pretend;
 106         int verbose;
 107         int wipe;
 108         int dupes_ok;
 109 } flag = {YES, NO, NO, NO, NO, NO, NO, NO, NO};
 110 /* *INDENT-ON* */
 111
 112 static int table_has_rows(const char *table);
 113 static int table_exists(const char *table);
 114
 115 static const char *clean_gecos_field(const char *gecos);
 116 static char *bt_smalldate(const char *string);
 117 static char *getfield(char *newline);
 118 static char *strip_quotes(const char *string);
 119 static char *mangle_reason(const char *string);
 120 static char *escape_quotes(const char *string);
 121
 122 static void db_error_cb(const char *errstr);
 123 static void db_reclaim_slack(void);
 124 static void export_config(const char *conf, int id);
 125 static void import_config(const char *conf, int id);
 126 static void check_schema(void);
 127 static void print_help(int i_exit);
 128 static void wipe_schema(void);
 129 static void drop_dupes(const char *user, const char *host, const char *t);
 130
 131 /**
 132  *  swing your pants
 133  */
 134 int
 135 main(int argc, char *argv[])
 136 {
 137         char etc[PATH_MAX];
 138         char conf[PATH_MAX];
 139         int opt;
 140         int i;
 141
 142         rb_strlcpy(me, argv[0], sizeof(me));
 143
 144         while((opt = getopt(argc, argv, "hieuspvwd")) != -1)
 145         {
 146                 switch (opt)
 147                 {
 148                 case 'h':
 149                         print_help(EXIT_SUCCESS);
 150                         break;
 151                 case 'i':
 152                         flag.none = NO;
 153                         flag.import = YES;
 154                         break;
 155                 case 'e':
 156                         flag.none = NO;
 157                         flag.export = YES;
 158                         break;
 159                 case 'u':
 160                         flag.none = NO;
 161                         flag.verify = YES;
 162                         break;
 163                 case 's':
 164                         flag.none = NO;
 165                         flag.vacuum = YES;
 166                         break;
 167                 case 'p':
 168                         flag.pretend = YES;
 169                         break;
 170                 case 'v':
 171                         flag.verbose = YES;
 172                         break;
 173                 case 'w':
 174                         flag.wipe = YES;
 175                         break;
 176                 case 'd':
 177                         flag.dupes_ok = YES;
 178                         break;
 179                 default:        /* '?' */
 180                         print_help(EXIT_FAILURE);
 181                 }
 182         }
 183
 184         /* they should really read the help. */
 185         if(flag.none)
 186                 print_help(EXIT_FAILURE);
 187
 188         if((flag.import && flag.export) || (flag.export && flag.wipe)
 189            || (flag.verify && flag.pretend) || (flag.export && flag.pretend))
 190         {
 191                 fprintf(stderr, "* Error: Conflicting flags.\n");
 192                 if(flag.export && flag.pretend)
 193                         fprintf(stderr, "* There is nothing to 'pretend' when exporting.\n");
 194
 195                 fprintf(stderr, "* For an explination of commands, run: %s -h\n", me);
 196                 exit(EXIT_FAILURE);
 197         }
 198
 199         if(argv[optind] != NULL)
 200                 rb_strlcpy(etc, argv[optind], sizeof(etc));
 201         else
 202                 rb_strlcpy(etc, ETCPATH, sizeof(ETCPATH));
 203
 204         fprintf(stdout,
 205                 "* ircd-ratbox bantool v.%s ($Id: bantool.c 26164 2008-10-26 19:52:43Z androsyn $)\n",
 206                 BT_VERSION);
 207
 208         if(flag.pretend == NO)
 209         {
 210                 if(rsdb_init(db_error_cb) == -1)
 211                 {
 212                         fprintf(stderr, "* Error: Unable to open database\n");
 213                         exit(EXIT_FAILURE);
 214                 }
 215                 check_schema();
 216
 217                 if(flag.vacuum)
 218                         db_reclaim_slack();
 219
 220                 if(flag.import && flag.wipe)
 221                 {
 222                         flag.dupes_ok = YES;    /* dont check for dupes if we are wiping the db clean */
 223                         for(i = 0; i < 3; i++)
 224                                 fprintf(stdout,
 225                                         "* WARNING: YOU ARE ABOUT TO WIPE YOUR DATABASE!\n");
 226
 227                         fprintf(stdout, "* Press ^C to abort! ");
 228                         fflush(stdout);
 229                         rb_sleep(10, 0);
 230                         fprintf(stdout, "Carrying on...\n");
 231                         wipe_schema();
 232                 }
 233         }
 234         if(flag.verbose && flag.dupes_ok == YES)
 235                 fprintf(stdout, "* Allowing duplicate bans...\n");
 236
 237         /* checking for our files to import or export */
 238         for(i = 0; i < LAST_BANDB_TYPE; i++)
 239         {
 240                 rb_snprintf(conf, sizeof(conf), "%s/%s.conf%s",
 241                             etc, bandb_table[i], bandb_suffix[i]);
 242
 243                 if(flag.import && flag.pretend == NO)
 244                         rsdb_transaction(RSDB_TRANS_START);
 245
 246                 if(flag.import)
 247                         import_config(conf, i);
 248
 249                 if(flag.export)
 250                         export_config(conf, i);
 251
 252                 if(flag.import && flag.pretend == NO)
 253                         rsdb_transaction(RSDB_TRANS_END);
 254         }
 255
 256         if(flag.import)
 257         {
 258                 if(count.error && flag.verbose)
 259                         fprintf(stderr, "* I was unable to locate %i config files to import.\n",
 260                                 count.error);
 261
 262                 fprintf(stdout, "* Import Stats: Klines: %i, Dlines: %i, Xlines: %i, Resvs: %i \n",
 263                         count.klines, count.dlines, count.xlines, count.resvs);
 264
 265                 fprintf(stdout,
 266                         "*\n* If your IRC server is currently running, newly imported bans \n* will not take effect until you issue the command: /quote rehash bans\n");
 267
 268                 if(flag.pretend)
 269                         fprintf(stdout,
 270                                 "* Pretend mode engaged. Nothing was actually entered into the database.\n");
 271         }
 272
 273         return 0;
 274 }
 275
 276
 277 /**
 278  * export the database to old-style flat files
 279  */
 280 static void
 281 export_config(const char *conf, int id)
 282 {
 283         struct rsdb_table table;
 284         static char sql[BUFSIZE * 2];
 285         static char buf[512];
 286         FILE *fd = NULL;
 287         int j;
 288
 289         /* for sanity sake */
 290         const int mask1 = 0;
 291         const int mask2 = 1;
 292         const int reason = 2;
 293         const int oper = 3;
 294         const int ts = 4;
 295         /* const int perm = 5; */
 296
 297         if(!table_has_rows(bandb_table[id]))
 298                 return;
 299
 300         if(strstr(conf, ".perm") != 0)
 301                 rb_snprintf(sql, sizeof(sql),
 302                             "SELECT DISTINCT mask1,mask2,reason,oper,time FROM %s WHERE perm = 1 ORDER BY time",
 303                             bandb_table[id]);
 304         else
 305                 rb_snprintf(sql, sizeof(sql),
 306                             "SELECT DISTINCT mask1,mask2,reason,oper,time FROM %s WHERE perm = 0 ORDER BY time",
 307                             bandb_table[id]);
 308
 309         rsdb_exec_fetch(&table, sql);
 310         if(table.row_count <= 0)
 311         {
 312                 rsdb_exec_fetch_end(&table);
 313                 return;
 314         }
 315
 316         if(flag.verbose)
 317                 fprintf(stdout, "* checking for %s: ", conf);   /* debug  */
 318
 319         /* open config for reading, or skip to the next */
 320         if(!(fd = fopen(conf, "w")))
 321         {
 322                 if(flag.verbose)
 323                         fprintf(stdout, "\tmissing.\n");
 324                 count.error++;
 325                 return;
 326         }
 327
 328         for(j = 0; j < table.row_count; j++)
 329         {
 330                 switch (id)
 331                 {
 332                 case BANDB_DLINE:
 333                 case BANDB_DLINE_PERM:
 334                         rb_snprintf(buf, sizeof(buf),
 335                                     "\"%s\",\"%s\",\"\",\"%s\",\"%s\",%s\n",
 336                                     table.row[j][mask1],
 337                                     mangle_reason(table.row[j][reason]),
 338                                     bt_smalldate(table.row[j][ts]),
 339                                     table.row[j][oper], table.row[j][ts]);
 340                         break;
 341
 342                 case BANDB_XLINE:
 343                 case BANDB_XLINE_PERM:
 344                         rb_snprintf(buf, sizeof(buf),
 345                                     "\"%s\",\"0\",\"%s\",\"%s\",%s\n",
 346                                     escape_quotes(table.row[j][mask1]),
 347                                     mangle_reason(table.row[j][reason]),
 348                                     table.row[j][oper], table.row[j][ts]);
 349                         break;
 350
 351                 case BANDB_RESV:
 352                 case BANDB_RESV_PERM:
 353                         rb_snprintf(buf, sizeof(buf),
 354                                     "\"%s\",\"%s\",\"%s\",%s\n",
 355                                     table.row[j][mask1],
 356                                     mangle_reason(table.row[j][reason]),
 357                                     table.row[j][oper], table.row[j][ts]);
 358                         break;
 359
 360
 361                 default:        /* Klines */
 362                         rb_snprintf(buf, sizeof(buf),
 363                                     "\"%s\",\"%s\",\"%s\",\"\",\"%s\",\"%s\",%s\n",
 364                                     table.row[j][mask1], table.row[j][mask2],
 365                                     mangle_reason(table.row[j][reason]),
 366                                     bt_smalldate(table.row[j][ts]), table.row[j][oper],
 367                                     table.row[j][ts]);
 368                         break;
 369                 }
 370
 371                 fprintf(fd, "%s", buf);
 372         }
 373
 374         rsdb_exec_fetch_end(&table);
 375         if(flag.verbose)
 376                 fprintf(stdout, "\twritten.\n");
 377         fclose(fd);
 378 }
 379
 380 /**
 381  * attempt to condense the individual conf functions into one
 382  */
 383 static void
 384 import_config(const char *conf, int id)
 385 {
 386         FILE *fd;
 387
 388         char line[BUFSIZE];
 389         char *p;
 390         int i = 0;
 391
 392         char f_perm = 0;
 393         char *f_mask1 = NULL;
 394         char *f_mask2 = NULL;
 395         char *f_oper = NULL;
 396         char *f_time = NULL;
 397         char *f_reason = NULL;
 398         char *f_oreason = NULL;
 399         char newreason[REASONLEN];
 400
 401         if(flag.verbose)
 402                 fprintf(stdout, "* checking for %s: ", conf);   /* debug  */
 403
 404         /* open config for reading, or skip to the next */
 405         if(!(fd = fopen(conf, "r")))
 406         {
 407                 if(flag.verbose)
 408                         fprintf(stdout, "%*s", strlen(bandb_suffix[id]) > 0 ? 10 : 15,
 409                                 "missing.\n");
 410                 count.error++;
 411                 return;
 412         }
 413
 414         if(strstr(conf, ".perm") != 0)
 415                 f_perm = 1;
 416
 417
 418         /* xline
 419          * "SYSTEM","0","banned","stevoo!stevoo@efnet.port80.se{stevoo}",1111080437
 420          * resv
 421          * "OseK","banned nickname","stevoo!stevoo@efnet.port80.se{stevoo}",1111031619
 422          * dline
 423          * "194.158.192.0/19","laptop scammers","","2005/3/17 05.33","stevoo!stevoo@efnet.port80.se{stevoo}",1111033988
 424          */
 425         while(fgets(line, sizeof(line), fd))
 426         {
 427                 if((p = strpbrk(line, "\r\n")) != NULL)
 428                         *p = '\0';
 429
 430                 if((*line == '\0') || (*line == '#'))
 431                         continue;
 432
 433                 /* mask1 */
 434                 f_mask1 = getfield(line);
 435
 436                 if(EmptyString(f_mask1))
 437                         continue;
 438
 439                 /* mask2 */
 440                 switch (id)
 441                 {
 442                 case BANDB_XLINE:
 443                 case BANDB_XLINE_PERM:
 444                         f_mask1 = escape_quotes(clean_gecos_field(f_mask1));
 445                         getfield(NULL); /* empty field */
 446                         break;
 447
 448                 case BANDB_RESV:
 449                 case BANDB_RESV_PERM:
 450                 case BANDB_DLINE:
 451                 case BANDB_DLINE_PERM:
 452                         break;
 453
 454                 default:
 455                         f_mask2 = getfield(NULL);
 456                         if(EmptyString(f_mask2))
 457                                 continue;
 458                         break;
 459                 }
 460
 461                 /* reason */
 462                 f_reason = getfield(NULL);
 463                 if(EmptyString(f_reason))
 464                         continue;
 465
 466                 /* oper comment */
 467                 switch (id)
 468                 {
 469                 case BANDB_KLINE:
 470                 case BANDB_KLINE_PERM:
 471                 case BANDB_DLINE:
 472                 case BANDB_DLINE_PERM:
 473                         f_oreason = getfield(NULL);
 474                         getfield(NULL);
 475                         break;
 476
 477                 default:
 478                         break;
 479                 }
 480
 481                 f_oper = getfield(NULL);
 482                 f_time = strip_quotes(f_oper + strlen(f_oper) + 2);
 483
 484                 /* meh */
 485                 if(id == BANDB_KLINE || id == BANDB_KLINE_PERM)
 486                 {
 487                         if(strstr(f_mask1, "!") != NULL)
 488                         {
 489                                 fprintf(stderr,
 490                                         "* SKIPPING INVALID KLINE %s@%s set by %s\n",
 491                                         f_mask1, f_mask2, f_oper);
 492                                 fprintf(stderr, "  You may wish to re-apply it correctly.\n");
 493                                 continue;
 494                         }
 495                 }
 496
 497                 /* append operreason_field to reason_field */
 498                 if(!EmptyString(f_oreason))
 499                         rb_snprintf(newreason, sizeof(newreason), "%s | %s", f_reason, f_oreason);
 500                 else
 501                         rb_snprintf(newreason, sizeof(newreason), "%s", f_reason);
 502
 503                 if(flag.pretend == NO)
 504                 {
 505                         if(flag.dupes_ok == NO)
 506                                 drop_dupes(f_mask1, f_mask2, bandb_table[id]);
 507
 508                         rsdb_exec(NULL,
 509                                   "INSERT INTO %s (mask1, mask2, oper, time, perm, reason) VALUES('%Q','%Q','%Q','%Q','%d','%Q')",
 510                                   bandb_table[id], f_mask1, f_mask2, f_oper, f_time, f_perm,
 511                                   newreason);
 512                 }
 513
 514                 if(flag.pretend && flag.verbose)
 515                         fprintf(stdout,
 516                                 "%s: perm(%d) mask1(%s) mask2(%s) oper(%s) reason(%s) time(%s)\n",
 517                                 bandb_table[id], f_perm, f_mask1, f_mask2, f_oper, newreason,
 518                                 f_time);
 519
 520                 i++;
 521         }
 522
 523         switch (bandb_letter[id])
 524         {
 525         case 'K':
 526                 count.klines += i;
 527                 break;
 528         case 'D':
 529                 count.dlines += i;
 530                 break;
 531         case 'X':
 532                 count.xlines += i;
 533                 break;
 534         case 'R':
 535                 count.resvs += i;
 536                 break;
 537         default:
 538                 break;
 539         }
 540
 541         if(flag.verbose)
 542                 fprintf(stdout, "%*s\n", strlen(bandb_suffix[id]) > 0 ? 10 : 15, "imported.");
 543
 544         return;
 545 }
 546
 547 /**
 548  * getfield
 549  *
 550  * inputs       - input buffer
 551  * output       - next field
 552  * side effects - field breakup for ircd.conf file.
 553  */
 554 char *
 555 getfield(char *newline)
 556 {
 557         static char *line = NULL;
 558         char *end, *field;
 559
 560         if(newline != NULL)
 561                 line = newline;
 562
 563         if(line == NULL)
 564                 return (NULL);
 565
 566         field = line;
 567
 568         /* XXX make this skip to first " if present */
 569         if(*field == '"')
 570                 field++;
 571         else
 572                 return (NULL);  /* mal-formed field */
 573
 574         end = strchr(line, ',');
 575
 576         while(1)
 577         {
 578                 /* no trailing , - last field */
 579                 if(end == NULL)
 580                 {
 581                         end = line + strlen(line);
 582                         line = NULL;
 583
 584                         if(*end == '"')
 585                         {
 586                                 *end = '\0';
 587                                 return field;
 588                         }
 589                         else
 590                                 return NULL;
 591                 }
 592                 else
 593                 {
 594                         /* look for a ", to mark the end of a field.. */
 595                         if(*(end - 1) == '"')
 596                         {
 597                                 line = end + 1;
 598                                 end--;
 599                                 *end = '\0';
 600                                 return field;
 601                         }
 602
 603                         /* search for the next ',' */
 604                         end++;
 605                         end = strchr(end, ',');
 606                 }
 607         }
 608
 609         return NULL;
 610 }
 611
 612 /**
 613  * strip away "quotes" from around strings
 614  */
 615 static char *
 616 strip_quotes(const char *string)
 617 {
 618         static char buf[14];    /* int(11) + 2 + \0 */
 619         char *str = buf;
 620
 621         if(string == NULL)
 622                 return NULL;
 623
 624         while(*string)
 625         {
 626                 if(*string != '"')
 627                 {
 628                         *str++ = *string;
 629                 }
 630                 string++;
 631         }
 632         *str = '\0';
 633         return buf;
 634 }
 635
 636 /**
 637  * escape quotes in a string
 638  */
 639 static char *
 640 escape_quotes(const char *string)
 641 {
 642         static char buf[BUFSIZE * 2];
 643         char *str = buf;
 644
 645         if(string == NULL)
 646                 return NULL;
 647
 648         while(*string)
 649         {
 650                 if(*string == '"')
 651                 {
 652                         *str++ = '\\';
 653                         *str++ = '"';
 654                 }
 655                 else
 656                 {
 657                         *str++ = *string;
 658                 }
 659                 string++;
 660         }
 661         *str = '\0';
 662         return buf;
 663 }
 664
 665
 666 static char *
 667 mangle_reason(const char *string)
 668 {
 669         static char buf[BUFSIZE * 2];
 670         char *str = buf;
 671
 672         if(string == NULL)
 673                 return NULL;
 674
 675         while(*string)
 676         {
 677                 switch (*string)
 678                 {
 679                 case '"':
 680                         *str = '\'';
 681                         break;
 682                 case ':':
 683                         *str = ' ';
 684                         break;
 685                 default:
 686                         *str = *string;
 687                 }
 688                 string++;
 689                 str++;
 690
 691         }
 692         *str = '\0';
 693         return buf;
 694 }
 695
 696
 697 /**
 698  * change spaces to \s in gecos field
 699  */
 700 static const char *
 701 clean_gecos_field(const char *gecos)
 702 {
 703         static char buf[BUFSIZE * 2];
 704         char *str = buf;
 705
 706         if(gecos == NULL)
 707                 return NULL;
 708
 709         while(*gecos)
 710         {
 711                 if(*gecos == ' ')
 712                 {
 713                         *str++ = '\\';
 714                         *str++ = 's';
 715                 }
 716                 else
 717                         *str++ = *gecos;
 718                 gecos++;
 719         }
 720         *str = '\0';
 721         return buf;
 722 }
 723
 724 /**
 725  * verify the database integrity, and if necessary create apropriate tables
 726  */
 727 static void
 728 check_schema(void)
 729 {
 730         int i, j;
 731         char type[8];           /* longest string is 'INTEGER\0' */
 732
 733         if(flag.verify || flag.verbose)
 734                 fprintf(stdout, "* Verifying database.\n");
 735
 736         const char *columns[] = {
 737                 "perm",
 738                 "mask1",
 739                 "mask2",
 740                 "oper",
 741                 "time",
 742                 "reason",
 743                 NULL
 744         };
 745
 746         for(i = 0; i < LAST_BANDB_TYPE; i++)
 747         {
 748                 if(!table_exists(bandb_table[i]))
 749                 {
 750                         rsdb_exec(NULL,
 751                                   "CREATE TABLE %s (mask1 TEXT, mask2 TEXT, oper TEXT, time INTEGER, perm INTEGER, reason TEXT)",
 752                                   bandb_table[i]);
 753                 }
 754
 755                 /*
 756                  * i can't think of any better way to do this, other then attempt to
 757                  * force the creation of column that may, or may not already exist. --dubkat
 758                  */
 759                 else
 760                 {
 761                         for(j = 0; columns[j] != NULL; j++)
 762                         {
 763                                 if(!strcmp(columns[j], "time") && !strcmp(columns[j], "perm"))
 764                                         rb_strlcpy(type, "INTEGER", sizeof(type));
 765                                 else
 766                                         rb_strlcpy(type, "TEXT", sizeof(type));
 767
 768                                 /* attempt to add a column with extreme prejudice, errors are ignored */
 769                                 rsdb_exec(NULL, "ALTER TABLE %s ADD COLUMN %s %s", bandb_table[i],
 770                                           columns[j], type);
 771                         }
 772                 }
 773
 774                 i++;            /* skip over .perm */
 775         }
 776 }
 777
 778 static void
 779 db_reclaim_slack(void)
 780 {
 781         fprintf(stdout, "* Reclaiming free space.\n");
 782         rsdb_exec(NULL, "VACUUM");
 783 }
 784
 785
 786 /**
 787  * check that appropriate tables exist.
 788  */
 789 static int
 790 table_exists(const char *dbtab)
 791 {
 792         struct rsdb_table table;
 793         rsdb_exec_fetch(&table, "SELECT name FROM sqlite_master WHERE type='table' AND name='%s'",
 794                         dbtab);
 795         rsdb_exec_fetch_end(&table);
 796         return table.row_count;
 797 }
 798
 799 /**
 800  * check that there are actual entries in a table
 801  */
 802 static int
 803 table_has_rows(const char *dbtab)
 804 {
 805         struct rsdb_table table;
 806         rsdb_exec_fetch(&table, "SELECT * FROM %s", dbtab);
 807         rsdb_exec_fetch_end(&table);
 808         return table.row_count;
 809 }
 810
 811 /**
 812  * completly wipes out an existing ban.db of all entries.
 813  */
 814 static void
 815 wipe_schema(void)
 816 {
 817         int i;
 818         rsdb_transaction(RSDB_TRANS_START);
 819         for(i = 0; i < LAST_BANDB_TYPE; i++)
 820         {
 821                 rsdb_exec(NULL, "DROP TABLE %s", bandb_table[i]);
 822                 i++;            /* double increment to skip over .perm */
 823         }
 824         rsdb_transaction(RSDB_TRANS_END);
 825
 826         check_schema();
 827 }
 828
 829 /**
 830  * remove pre-existing duplicate bans from the database.
 831  * we favor the new, imported ban over the one in the database
 832  */
 833 void
 834 drop_dupes(const char *user, const char *host, const char *t)
 835 {
 836         rsdb_exec(NULL, "DELETE FROM %s WHERE mask1='%Q' AND mask2='%Q'", t, user, host);
 837 }
 838
 839 static void
 840 db_error_cb(const char *errstr)
 841 {
 842         return;
 843 }
 844
 845
 846 /**
 847  * convert unix timestamp to human readable (small) date
 848  */
 849 static char *
 850 bt_smalldate(const char *string)
 851 {
 852         static char buf[MAX_DATE_STRING];
 853         struct tm *lt;
 854         time_t t;
 855         t = strtol(string, NULL, 10);
 856         lt = gmtime(&t);
 857         if(lt == NULL)
 858                 return NULL;
 859         rb_snprintf(buf, sizeof(buf), "%d/%d/%d %02d.%02d",
 860                     lt->tm_year + 1900, lt->tm_mon + 1, lt->tm_mday, lt->tm_hour, lt->tm_min);
 861         return buf;
 862 }
 863
 864 /**
 865  * you are here ->.
 866  */
 867 void
 868 print_help(int i_exit)
 869 {
 870         fprintf(stderr, "bantool v.%s - the ircd-ratbox database tool.\n", BT_VERSION);
 871         fprintf(stderr, "Copyright (C) 2008 Daniel J Reidy <dubkat@gmail.com>\n");
 872         fprintf(stderr, "$Id: bantool.c 26164 2008-10-26 19:52:43Z androsyn $\n\n");
 873         fprintf(stderr, "This program is distributed in the hope that it will be useful,\n"
 874                 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
 875                 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
 876                 "GNU General Public License for more details.\n\n");
 877
 878         fprintf(stderr, "Usage: %s <-i|-e> [-p] [-v] [-h] [-d] [-w] [path]\n", me);
 879         fprintf(stderr, "       -h : Display some slightly useful help.\n");
 880         fprintf(stderr, "       -i : Actually import configs into your database.\n");
 881         fprintf(stderr, "       -e : Export your database to old-style flat files.\n");
 882         fprintf(stderr,
 883                 "            This is suitable for redistrubuting your banlists, or creating backups.\n");
 884         fprintf(stderr, "       -s : Reclaim empty slack space the database may be taking up.\n");
 885         fprintf(stderr, "       -u : Update the database tables to support any new features.\n");
 886         fprintf(stderr,
 887                 "            This is automaticlly done if you are importing or exporting\n");
 888         fprintf(stderr, "            but should be run whenever you upgrade the ircd.\n");
 889         fprintf(stderr,
 890                 "       -p : pretend, checks for the configs, and parses them, then tells you some data...\n");
 891         fprintf(stderr, "            but does not touch your database.\n");
 892         fprintf(stderr,
 893                 "       -v : Be verbose... and it *is* very verbose! (intended for debugging)\n");
 894         fprintf(stderr, "       -d : Enable checking for redunant entries.\n");
 895         fprintf(stderr, "       -w : Completly wipe your database clean. May be used with -i \n");
 896         fprintf(stderr,
 897                 "     path : An optional directory containing old ratbox configs for import, or export.\n");
 898         fprintf(stderr, "            If not specified, it looks in PREFIX/etc.\n");
 899         exit(i_exit);
 900 }