lib/libc/db/test/dbtest.c

   1 /*-
   2  * Copyright (c) 1992, 1993, 1994
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * @(#) Copyright (c) 1992, 1993, 1994 The Regents of the University of California.  All rights reserved.
  30  * @(#)dbtest.c 8.17 (Berkeley) 9/1/94
  31  * $FreeBSD: src/lib/libc/db/test/dbtest.c,v 1.3.8.1 2000/08/21 22:44:47 jhb Exp $
  32  * $DragonFly: src/lib/libc/db/test/dbtest.c,v 1.8 2008/07/10 18:29:51 swildner Exp $
  33  */
  34
  35 #include <sys/param.h>
  36 #include <sys/stat.h>
  37
  38 #include <ctype.h>
  39 #include <errno.h>
  40 #include <fcntl.h>
  41 #include <limits.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <string.h>
  45 #include <unistd.h>
  46
  47 #include <db.h>
  48
  49 enum S { COMMAND, COMPARE, GET, PUT, REMOVE, SEQ, SEQFLAG, KEY, DATA };
  50
  51 void     compare (DBT *, DBT *);
  52 DBTYPE   dbtype (char *);
  53 void     dump (DB *, int);
  54 void     err (const char *, ...);
  55 void     get (DB *, DBT *);
  56 void     getdata (DB *, DBT *, DBT *);
  57 void     put (DB *, DBT *, DBT *);
  58 void     rem (DB *, DBT *);
  59 char    *sflags (int);
  60 void     synk (DB *);
  61 void    *rfile (char *, size_t *);
  62 void     seq (DB *, DBT *);
  63 u_int    setflags (char *);
  64 void    *setinfo (DBTYPE, char *);
  65 void     usage (void);
  66 void    *xmalloc (char *, size_t);
  67
  68 DBTYPE type;                            /* Database type. */
  69 void *infop;                            /* Iflags. */
  70 u_long lineno;                          /* Current line in test script. */
  71 u_int flags;                            /* Current DB flags. */
  72 int ofd = STDOUT_FILENO;                /* Standard output fd. */
  73
  74 DB *XXdbp;                              /* Global for gdb. */
  75 int XXlineno;                           /* Fast breakpoint for gdb. */
  76
  77 int
  78 main(int argc, char *argv[])
  79 {
  80         extern int optind;
  81         extern char *optarg;
  82         enum S command, state;
  83         DB *dbp;
  84         DBT data, key, keydata;
  85         size_t len;
  86         int ch, oflags, sflag;
  87         char *fname, *infoarg, *p, *t, buf[8 * 1024];
  88
  89         infoarg = NULL;
  90         fname = NULL;
  91         oflags = O_CREAT | O_RDWR;
  92         sflag = 0;
  93         while ((ch = getopt(argc, argv, "f:i:lo:s")) != -1)
  94                 switch (ch) {
  95                 case 'f':
  96                         fname = optarg;
  97                         break;
  98                 case 'i':
  99                         infoarg = optarg;
 100                         break;
 101                 case 'l':
 102                         oflags |= DB_LOCK;
 103                         break;
 104                 case 'o':
 105                         if ((ofd = open(optarg,
 106                             O_WRONLY|O_CREAT|O_TRUNC, 0666)) < 0)
 107                                 err("%s: %s", optarg, strerror(errno));
 108                         break;
 109                 case 's':
 110                         sflag = 1;
 111                         break;
 112                 case '?':
 113                 default:
 114                         usage();
 115                 }
 116         argc -= optind;
 117         argv += optind;
 118
 119         if (argc != 2)
 120                 usage();
 121
 122         /* Set the type. */
 123         type = dbtype(*argv++);
 124
 125         /* Open the descriptor file. */
 126         if (strcmp(*argv, "-") && freopen(*argv, "r", stdin) == NULL)
 127             err("%s: %s", *argv, strerror(errno));
 128
 129         /* Set up the db structure as necessary. */
 130         if (infoarg == NULL)
 131                 infop = NULL;
 132         else
 133                 for (p = strtok(infoarg, ",\t "); p != NULL;
 134                     p = strtok(0, ",\t "))
 135                         if (*p != '\0')
 136                                 infop = setinfo(type, p);
 137
 138         /*
 139          * Open the DB.  Delete any preexisting copy, you almost never
 140          * want it around, and it often screws up tests.
 141          */
 142         if (fname == NULL) {
 143                 p = getenv("TMPDIR");
 144                 if (p == NULL)
 145                         p = "/var/tmp";
 146                 snprintf(buf, sizeof(buf), "%s/__dbtest", p);
 147                 fname = buf;
 148                 unlink(buf);
 149         } else  if (!sflag)
 150                 unlink(fname);
 151
 152         if ((dbp = dbopen(fname,
 153             oflags, S_IRUSR | S_IWUSR, type, infop)) == NULL)
 154                 err("dbopen: %s", strerror(errno));
 155         XXdbp = dbp;
 156
 157         state = COMMAND;
 158         for (lineno = 1;
 159             (p = fgets(buf, sizeof(buf), stdin)) != NULL; ++lineno) {
 160                 /* Delete the newline, displaying the key/data is easier. */
 161                 if (ofd == STDOUT_FILENO && (t = strchr(p, '\n')) != NULL)
 162                         *t = '\0';
 163                 if ((len = strlen(buf)) == 0 || isspace(*p) || *p == '#')
 164                         continue;
 165
 166                 /* Convenient gdb break point. */
 167                 if (XXlineno == lineno)
 168                         XXlineno = 1;
 169                 switch (*p) {
 170                 case 'c':                       /* compare */
 171                         if (state != COMMAND)
 172                                 err("line %lu: not expecting command", lineno);
 173                         state = KEY;
 174                         command = COMPARE;
 175                         break;
 176                 case 'e':                       /* echo */
 177                         if (state != COMMAND)
 178                                 err("line %lu: not expecting command", lineno);
 179                         /* Don't display the newline, if CR at EOL. */
 180                         if (p[len - 2] == '\r')
 181                                 --len;
 182                         if (write(ofd, p + 1, len - 1) != len - 1 ||
 183                             write(ofd, "\n", 1) != 1)
 184                                 err("write: %s", strerror(errno));
 185                         break;
 186                 case 'g':                       /* get */
 187                         if (state != COMMAND)
 188                                 err("line %lu: not expecting command", lineno);
 189                         state = KEY;
 190                         command = GET;
 191                         break;
 192                 case 'p':                       /* put */
 193                         if (state != COMMAND)
 194                                 err("line %lu: not expecting command", lineno);
 195                         state = KEY;
 196                         command = PUT;
 197                         break;
 198                 case 'r':                       /* remove */
 199                         if (state != COMMAND)
 200                                 err("line %lu: not expecting command", lineno);
 201                         if (flags == R_CURSOR) {
 202                                 rem(dbp, &key);
 203                                 state = COMMAND;
 204                         } else {
 205                                 state = KEY;
 206                                 command = REMOVE;
 207                         }
 208                         break;
 209                 case 'S':                       /* sync */
 210                         if (state != COMMAND)
 211                                 err("line %lu: not expecting command", lineno);
 212                         synk(dbp);
 213                         state = COMMAND;
 214                         break;
 215                 case 's':                       /* seq */
 216                         if (state != COMMAND)
 217                                 err("line %lu: not expecting command", lineno);
 218                         if (flags == R_CURSOR) {
 219                                 state = KEY;
 220                                 command = SEQ;
 221                         } else
 222                                 seq(dbp, &key);
 223                         break;
 224                 case 'f':
 225                         flags = setflags(p + 1);
 226                         break;
 227                 case 'D':                       /* data file */
 228                         if (state != DATA)
 229                                 err("line %lu: not expecting data", lineno);
 230                         data.data = rfile(p + 1, &data.size);
 231                         goto ldata;
 232                 case 'd':                       /* data */
 233                         if (state != DATA)
 234                                 err("line %lu: not expecting data", lineno);
 235                         data.data = xmalloc(p + 1, len - 1);
 236                         data.size = len - 1;
 237 ldata:                  switch (command) {
 238                         case COMPARE:
 239                                 compare(&keydata, &data);
 240                                 break;
 241                         case PUT:
 242                                 put(dbp, &key, &data);
 243                                 break;
 244                         default:
 245                                 err("line %lu: command doesn't take data",
 246                                     lineno);
 247                         }
 248                         if (type != DB_RECNO)
 249                                 free(key.data);
 250                         free(data.data);
 251                         state = COMMAND;
 252                         break;
 253                 case 'K':                       /* key file */
 254                         if (state != KEY)
 255                                 err("line %lu: not expecting a key", lineno);
 256                         if (type == DB_RECNO)
 257                                 err("line %lu: 'K' not available for recno",
 258                                     lineno);
 259                         key.data = rfile(p + 1, &key.size);
 260                         goto lkey;
 261                 case 'k':                       /* key */
 262                         if (state != KEY)
 263                                 err("line %lu: not expecting a key", lineno);
 264                         if (type == DB_RECNO) {
 265                                 static recno_t recno;
 266                                 recno = atoi(p + 1);
 267                                 key.data = &recno;
 268                                 key.size = sizeof(recno);
 269                         } else {
 270                                 key.data = xmalloc(p + 1, len - 1);
 271                                 key.size = len - 1;
 272                         }
 273 lkey:                   switch (command) {
 274                         case COMPARE:
 275                                 getdata(dbp, &key, &keydata);
 276                                 state = DATA;
 277                                 break;
 278                         case GET:
 279                                 get(dbp, &key);
 280                                 if (type != DB_RECNO)
 281                                         free(key.data);
 282                                 state = COMMAND;
 283                                 break;
 284                         case PUT:
 285                                 state = DATA;
 286                                 break;
 287                         case REMOVE:
 288                                 rem(dbp, &key);
 289                                 if ((type != DB_RECNO) && (flags != R_CURSOR))
 290                                         free(key.data);
 291                                 state = COMMAND;
 292                                 break;
 293                         case SEQ:
 294                                 seq(dbp, &key);
 295                                 if ((type != DB_RECNO) && (flags != R_CURSOR))
 296                                         free(key.data);
 297                                 state = COMMAND;
 298                                 break;
 299                         default:
 300                                 err("line %lu: command doesn't take a key",
 301                                     lineno);
 302                         }
 303                         break;
 304                 case 'o':
 305                         dump(dbp, p[1] == 'r');
 306                         break;
 307                 default:
 308                         err("line %lu: %s: unknown command character",
 309                             lineno, p);
 310                 }
 311         }
 312 #ifdef STATISTICS
 313         /*
 314          * -l must be used (DB_LOCK must be set) for this to be
 315          * used, otherwise a page will be locked and it will fail.
 316          */
 317         if (type == DB_BTREE && oflags & DB_LOCK)
 318                 __bt_stat(dbp);
 319 #endif
 320         if (dbp->close(dbp))
 321                 err("db->close: %s", strerror(errno));
 322         close(ofd);
 323         exit(0);
 324 }
 325
 326 #define NOOVERWRITE     "put failed, would overwrite key\n"
 327
 328 void
 329 compare(DBT *db1, DBT *db2)
 330 {
 331         size_t len;
 332         u_char *p1, *p2;
 333
 334         if (db1->size != db2->size)
 335                 printf("compare failed: key->data len %lu != data len %lu\n",
 336                     db1->size, db2->size);
 337
 338         len = MIN(db1->size, db2->size);
 339         for (p1 = db1->data, p2 = db2->data; len--;)
 340                 if (*p1++ != *p2++) {
 341                         printf("compare failed at offset %d\n",
 342                             p1 - (u_char *)db1->data);
 343                         break;
 344                 }
 345 }
 346
 347 void
 348 get(DB *dbp, DBT *kp)
 349 {
 350         DBT data;
 351
 352         switch (dbp->get(dbp, kp, &data, flags)) {
 353         case 0:
 354                 write(ofd, data.data, data.size);
 355                 if (ofd == STDOUT_FILENO)
 356                         write(ofd, "\n", 1);
 357                 break;
 358         case -1:
 359                 err("line %lu: get: %s", lineno, strerror(errno));
 360                 /* NOTREACHED */
 361         case 1:
 362 #define NOSUCHKEY       "get failed, no such key\n"
 363                 if (ofd != STDOUT_FILENO)
 364                         write(ofd, NOSUCHKEY, sizeof(NOSUCHKEY) - 1);
 365                 else
 366                         fprintf(stderr, "%d: %.*s: %s",
 367                             lineno, MIN(kp->size, 20), kp->data, NOSUCHKEY);
 368 #undef  NOSUCHKEY
 369                 break;
 370         }
 371 }
 372
 373 void
 374 getdata(DB *dbp, DBT *kp, DBT *dp)
 375 {
 376         switch (dbp->get(dbp, kp, dp, flags)) {
 377         case 0:
 378                 return;
 379         case -1:
 380                 err("line %lu: getdata: %s", lineno, strerror(errno));
 381                 /* NOTREACHED */
 382         case 1:
 383                 err("line %lu: getdata failed, no such key", lineno);
 384                 /* NOTREACHED */
 385         }
 386 }
 387
 388 void
 389 put(DB *dbp, DBT *kp, DBT *dp)
 390 {
 391         switch (dbp->put(dbp, kp, dp, flags)) {
 392         case 0:
 393                 break;
 394         case -1:
 395                 err("line %lu: put: %s", lineno, strerror(errno));
 396                 /* NOTREACHED */
 397         case 1:
 398                 write(ofd, NOOVERWRITE, sizeof(NOOVERWRITE) - 1);
 399                 break;
 400         }
 401 }
 402
 403 void
 404 rem(DB *dbp, DBT *kp)
 405 {
 406         switch (dbp->del(dbp, kp, flags)) {
 407         case 0:
 408                 break;
 409         case -1:
 410                 err("line %lu: rem: %s", lineno, strerror(errno));
 411                 /* NOTREACHED */
 412         case 1:
 413 #define NOSUCHKEY       "rem failed, no such key\n"
 414                 if (ofd != STDOUT_FILENO)
 415                         write(ofd, NOSUCHKEY, sizeof(NOSUCHKEY) - 1);
 416                 else if (flags != R_CURSOR)
 417                         fprintf(stderr, "%d: %.*s: %s",
 418                             lineno, MIN(kp->size, 20), kp->data, NOSUCHKEY);
 419                 else
 420                         fprintf(stderr,
 421                             "%d: rem of cursor failed\n", lineno);
 422 #undef  NOSUCHKEY
 423                 break;
 424         }
 425 }
 426
 427 void
 428 synk(DB *dbp)
 429 {
 430         switch (dbp->sync(dbp, flags)) {
 431         case 0:
 432                 break;
 433         case -1:
 434                 err("line %lu: synk: %s", lineno, strerror(errno));
 435                 /* NOTREACHED */
 436         }
 437 }
 438
 439 void
 440 seq(DB *dbp, DBT *kp)
 441 {
 442         DBT data;
 443
 444         switch (dbp->seq(dbp, kp, &data, flags)) {
 445         case 0:
 446                 write(ofd, data.data, data.size);
 447                 if (ofd == STDOUT_FILENO)
 448                         write(ofd, "\n", 1);
 449                 break;
 450         case -1:
 451                 err("line %lu: seq: %s", lineno, strerror(errno));
 452                 /* NOTREACHED */
 453         case 1:
 454 #define NOSUCHKEY       "seq failed, no such key\n"
 455                 if (ofd != STDOUT_FILENO)
 456                         write(ofd, NOSUCHKEY, sizeof(NOSUCHKEY) - 1);
 457                 else if (flags == R_CURSOR)
 458                         fprintf(stderr, "%d: %.*s: %s",
 459                             lineno, MIN(kp->size, 20), kp->data, NOSUCHKEY);
 460                 else
 461                         fprintf(stderr,
 462                             "%d: seq (%s) failed\n", lineno, sflags(flags));
 463 #undef  NOSUCHKEY
 464                 break;
 465         }
 466 }
 467
 468 void
 469 dump(DB *dbp, int rev)
 470 {
 471         DBT key, data;
 472         int flags, nflags;
 473
 474         if (rev) {
 475                 flags = R_LAST;
 476                 nflags = R_PREV;
 477         } else {
 478                 flags = R_FIRST;
 479                 nflags = R_NEXT;
 480         }
 481         for (;; flags = nflags)
 482                 switch (dbp->seq(dbp, &key, &data, flags)) {
 483                 case 0:
 484                         write(ofd, data.data, data.size);
 485                         if (ofd == STDOUT_FILENO)
 486                                 write(ofd, "\n", 1);
 487                         break;
 488                 case 1:
 489                         goto done;
 490                 case -1:
 491                         err("line %lu: (dump) seq: %s",
 492                             lineno, strerror(errno));
 493                         /* NOTREACHED */
 494                 }
 495 done:   return;
 496 }
 497
 498 u_int
 499 setflags(char *s)
 500 {
 501         char *p, *index();
 502
 503         for (; isspace(*s); ++s);
 504         if (*s == '\n' || *s == '\0')
 505                 return (0);
 506         if ((p = index(s, '\n')) != NULL)
 507                 *p = '\0';
 508         if (!strcmp(s, "R_CURSOR"))             return (R_CURSOR);
 509         if (!strcmp(s, "R_FIRST"))              return (R_FIRST);
 510         if (!strcmp(s, "R_IAFTER"))             return (R_IAFTER);
 511         if (!strcmp(s, "R_IBEFORE"))            return (R_IBEFORE);
 512         if (!strcmp(s, "R_LAST"))               return (R_LAST);
 513         if (!strcmp(s, "R_NEXT"))               return (R_NEXT);
 514         if (!strcmp(s, "R_NOOVERWRITE"))        return (R_NOOVERWRITE);
 515         if (!strcmp(s, "R_PREV"))               return (R_PREV);
 516         if (!strcmp(s, "R_SETCURSOR"))          return (R_SETCURSOR);
 517
 518         err("line %lu: %s: unknown flag", lineno, s);
 519         /* NOTREACHED */
 520 }
 521
 522 char *
 523 sflags(int flags)
 524 {
 525         switch (flags) {
 526         case R_CURSOR:          return ("R_CURSOR");
 527         case R_FIRST:           return ("R_FIRST");
 528         case R_IAFTER:          return ("R_IAFTER");
 529         case R_IBEFORE:         return ("R_IBEFORE");
 530         case R_LAST:            return ("R_LAST");
 531         case R_NEXT:            return ("R_NEXT");
 532         case R_NOOVERWRITE:     return ("R_NOOVERWRITE");
 533         case R_PREV:            return ("R_PREV");
 534         case R_SETCURSOR:       return ("R_SETCURSOR");
 535         }
 536
 537         return ("UNKNOWN!");
 538 }
 539
 540 DBTYPE
 541 dbtype(char *s)
 542 {
 543         if (!strcmp(s, "btree"))
 544                 return (DB_BTREE);
 545         if (!strcmp(s, "hash"))
 546                 return (DB_HASH);
 547         if (!strcmp(s, "recno"))
 548                 return (DB_RECNO);
 549         err("%s: unknown type (use btree, hash or recno)", s);
 550         /* NOTREACHED */
 551 }
 552
 553 void *
 554 setinfo(DBTYPE type, char *s)
 555 {
 556         static BTREEINFO ib;
 557         static HASHINFO ih;
 558         static RECNOINFO rh;
 559         char *eq, *index();
 560
 561         if ((eq = index(s, '=')) == NULL)
 562                 err("%s: illegal structure set statement", s);
 563         *eq++ = '\0';
 564         if (!isdigit(*eq))
 565                 err("%s: structure set statement must be a number", s);
 566
 567         switch (type) {
 568         case DB_BTREE:
 569                 if (!strcmp("flags", s)) {
 570                         ib.flags = atoi(eq);
 571                         return (&ib);
 572                 }
 573                 if (!strcmp("cachesize", s)) {
 574                         ib.cachesize = atoi(eq);
 575                         return (&ib);
 576                 }
 577                 if (!strcmp("maxkeypage", s)) {
 578                         ib.maxkeypage = atoi(eq);
 579                         return (&ib);
 580                 }
 581                 if (!strcmp("minkeypage", s)) {
 582                         ib.minkeypage = atoi(eq);
 583                         return (&ib);
 584                 }
 585                 if (!strcmp("lorder", s)) {
 586                         ib.lorder = atoi(eq);
 587                         return (&ib);
 588                 }
 589                 if (!strcmp("psize", s)) {
 590                         ib.psize = atoi(eq);
 591                         return (&ib);
 592                 }
 593                 break;
 594         case DB_HASH:
 595                 if (!strcmp("bsize", s)) {
 596                         ih.bsize = atoi(eq);
 597                         return (&ih);
 598                 }
 599                 if (!strcmp("ffactor", s)) {
 600                         ih.ffactor = atoi(eq);
 601                         return (&ih);
 602                 }
 603                 if (!strcmp("nelem", s)) {
 604                         ih.nelem = atoi(eq);
 605                         return (&ih);
 606                 }
 607                 if (!strcmp("cachesize", s)) {
 608                         ih.cachesize = atoi(eq);
 609                         return (&ih);
 610                 }
 611                 if (!strcmp("lorder", s)) {
 612                         ih.lorder = atoi(eq);
 613                         return (&ih);
 614                 }
 615                 break;
 616         case DB_RECNO:
 617                 if (!strcmp("flags", s)) {
 618                         rh.flags = atoi(eq);
 619                         return (&rh);
 620                 }
 621                 if (!strcmp("cachesize", s)) {
 622                         rh.cachesize = atoi(eq);
 623                         return (&rh);
 624                 }
 625                 if (!strcmp("lorder", s)) {
 626                         rh.lorder = atoi(eq);
 627                         return (&rh);
 628                 }
 629                 if (!strcmp("reclen", s)) {
 630                         rh.reclen = atoi(eq);
 631                         return (&rh);
 632                 }
 633                 if (!strcmp("bval", s)) {
 634                         rh.bval = atoi(eq);
 635                         return (&rh);
 636                 }
 637                 if (!strcmp("psize", s)) {
 638                         rh.psize = atoi(eq);
 639                         return (&rh);
 640                 }
 641                 break;
 642         }
 643         err("%s: unknown structure value", s);
 644         /* NOTREACHED */
 645 }
 646
 647 void *
 648 rfile(char *name, size_t *lenp)
 649 {
 650         struct stat sb;
 651         void *p;
 652         int fd;
 653         char *np, *index();
 654
 655         for (; isspace(*name); ++name);
 656         if ((np = index(name, '\n')) != NULL)
 657                 *np = '\0';
 658         if ((fd = open(name, O_RDONLY, 0)) < 0 ||
 659             fstat(fd, &sb))
 660                 err("%s: %s\n", name, strerror(errno));
 661 #ifdef NOT_PORTABLE
 662         if (sb.st_size > (off_t)SIZE_T_MAX)
 663                 err("%s: %s\n", name, strerror(E2BIG));
 664 #endif
 665         if ((p = (void *)malloc((u_int)sb.st_size)) == NULL)
 666                 err("%s", strerror(errno));
 667         read(fd, p, (int)sb.st_size);
 668         *lenp = sb.st_size;
 669         close(fd);
 670         return (p);
 671 }
 672
 673 void *
 674 xmalloc(char *text, size_t len)
 675 {
 676         void *p;
 677
 678         if ((p = (void *)malloc(len)) == NULL)
 679                 err("%s", strerror(errno));
 680         memmove(p, text, len);
 681         return (p);
 682 }
 683
 684 void
 685 usage(void)
 686 {
 687         fprintf(stderr,
 688             "usage: dbtest [-l] [-f file] [-i info] [-o file] type script\n");
 689         exit(1);
 690 }
 691
 692 #include <stdarg.h>
 693
 694 void
 695 err(const char *fmt, ...)
 696 {
 697         va_list ap;
 698         va_start(ap, fmt);
 699         fprintf(stderr, "dbtest: ");
 700         vfprintf(stderr, fmt, ap);
 701         va_end(ap);
 702         fprintf(stderr, "\n");
 703         exit(1);
 704         /* NOTREACHED */
 705 }