xref: /dragonfly/lib/libc/db/test/dbtest.c (revision e3146d3a)
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 1.6 2005/09/19 09:20:37 asmodai 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(argc, argv)
79 	int argc;
80 	char *argv[];
81 {
82 	extern int optind;
83 	extern char *optarg;
84 	enum S command, state;
85 	DB *dbp;
86 	DBT data, key, keydata;
87 	size_t len;
88 	int ch, oflags, sflag;
89 	char *fname, *infoarg, *p, *t, buf[8 * 1024];
90 
91 	infoarg = NULL;
92 	fname = NULL;
93 	oflags = O_CREAT | O_RDWR;
94 	sflag = 0;
95 	while ((ch = getopt(argc, argv, "f:i:lo:s")) != EOF)
96 		switch (ch) {
97 		case 'f':
98 			fname = optarg;
99 			break;
100 		case 'i':
101 			infoarg = optarg;
102 			break;
103 		case 'l':
104 			oflags |= DB_LOCK;
105 			break;
106 		case 'o':
107 			if ((ofd = open(optarg,
108 			    O_WRONLY|O_CREAT|O_TRUNC, 0666)) < 0)
109 				err("%s: %s", optarg, strerror(errno));
110 			break;
111 		case 's':
112 			sflag = 1;
113 			break;
114 		case '?':
115 		default:
116 			usage();
117 		}
118 	argc -= optind;
119 	argv += optind;
120 
121 	if (argc != 2)
122 		usage();
123 
124 	/* Set the type. */
125 	type = dbtype(*argv++);
126 
127 	/* Open the descriptor file. */
128         if (strcmp(*argv, "-") && freopen(*argv, "r", stdin) == NULL)
129 	    err("%s: %s", *argv, strerror(errno));
130 
131 	/* Set up the db structure as necessary. */
132 	if (infoarg == NULL)
133 		infop = NULL;
134 	else
135 		for (p = strtok(infoarg, ",\t "); p != NULL;
136 		    p = strtok(0, ",\t "))
137 			if (*p != '\0')
138 				infop = setinfo(type, p);
139 
140 	/*
141 	 * Open the DB.  Delete any preexisting copy, you almost never
142 	 * want it around, and it often screws up tests.
143 	 */
144 	if (fname == NULL) {
145 		p = getenv("TMPDIR");
146 		if (p == NULL)
147 			p = "/var/tmp";
148 		(void)snprintf(buf, sizeof(buf), "%s/__dbtest", p);
149 		fname = buf;
150 		(void)unlink(buf);
151 	} else  if (!sflag)
152 		(void)unlink(fname);
153 
154 	if ((dbp = dbopen(fname,
155 	    oflags, S_IRUSR | S_IWUSR, type, infop)) == NULL)
156 		err("dbopen: %s", strerror(errno));
157 	XXdbp = dbp;
158 
159 	state = COMMAND;
160 	for (lineno = 1;
161 	    (p = fgets(buf, sizeof(buf), stdin)) != NULL; ++lineno) {
162 		/* Delete the newline, displaying the key/data is easier. */
163 		if (ofd == STDOUT_FILENO && (t = strchr(p, '\n')) != NULL)
164 			*t = '\0';
165 		if ((len = strlen(buf)) == 0 || isspace(*p) || *p == '#')
166 			continue;
167 
168 		/* Convenient gdb break point. */
169 		if (XXlineno == lineno)
170 			XXlineno = 1;
171 		switch (*p) {
172 		case 'c':			/* compare */
173 			if (state != COMMAND)
174 				err("line %lu: not expecting command", lineno);
175 			state = KEY;
176 			command = COMPARE;
177 			break;
178 		case 'e':			/* echo */
179 			if (state != COMMAND)
180 				err("line %lu: not expecting command", lineno);
181 			/* Don't display the newline, if CR at EOL. */
182 			if (p[len - 2] == '\r')
183 				--len;
184 			if (write(ofd, p + 1, len - 1) != len - 1 ||
185 			    write(ofd, "\n", 1) != 1)
186 				err("write: %s", strerror(errno));
187 			break;
188 		case 'g':			/* get */
189 			if (state != COMMAND)
190 				err("line %lu: not expecting command", lineno);
191 			state = KEY;
192 			command = GET;
193 			break;
194 		case 'p':			/* put */
195 			if (state != COMMAND)
196 				err("line %lu: not expecting command", lineno);
197 			state = KEY;
198 			command = PUT;
199 			break;
200 		case 'r':			/* remove */
201 			if (state != COMMAND)
202 				err("line %lu: not expecting command", lineno);
203                         if (flags == R_CURSOR) {
204 				rem(dbp, &key);
205 				state = COMMAND;
206                         } else {
207 				state = KEY;
208 				command = REMOVE;
209 			}
210 			break;
211 		case 'S':			/* sync */
212 			if (state != COMMAND)
213 				err("line %lu: not expecting command", lineno);
214 			synk(dbp);
215 			state = COMMAND;
216 			break;
217 		case 's':			/* seq */
218 			if (state != COMMAND)
219 				err("line %lu: not expecting command", lineno);
220 			if (flags == R_CURSOR) {
221 				state = KEY;
222 				command = SEQ;
223 			} else
224 				seq(dbp, &key);
225 			break;
226 		case 'f':
227 			flags = setflags(p + 1);
228 			break;
229 		case 'D':			/* data file */
230 			if (state != DATA)
231 				err("line %lu: not expecting data", lineno);
232 			data.data = rfile(p + 1, &data.size);
233 			goto ldata;
234 		case 'd':			/* data */
235 			if (state != DATA)
236 				err("line %lu: not expecting data", lineno);
237 			data.data = xmalloc(p + 1, len - 1);
238 			data.size = len - 1;
239 ldata:			switch (command) {
240 			case COMPARE:
241 				compare(&keydata, &data);
242 				break;
243 			case PUT:
244 				put(dbp, &key, &data);
245 				break;
246 			default:
247 				err("line %lu: command doesn't take data",
248 				    lineno);
249 			}
250 			if (type != DB_RECNO)
251 				free(key.data);
252 			free(data.data);
253 			state = COMMAND;
254 			break;
255 		case 'K':			/* key file */
256 			if (state != KEY)
257 				err("line %lu: not expecting a key", lineno);
258 			if (type == DB_RECNO)
259 				err("line %lu: 'K' not available for recno",
260 				    lineno);
261 			key.data = rfile(p + 1, &key.size);
262 			goto lkey;
263 		case 'k':			/* key */
264 			if (state != KEY)
265 				err("line %lu: not expecting a key", lineno);
266 			if (type == DB_RECNO) {
267 				static recno_t recno;
268 				recno = atoi(p + 1);
269 				key.data = &recno;
270 				key.size = sizeof(recno);
271 			} else {
272 				key.data = xmalloc(p + 1, len - 1);
273 				key.size = len - 1;
274 			}
275 lkey:			switch (command) {
276 			case COMPARE:
277 				getdata(dbp, &key, &keydata);
278 				state = DATA;
279 				break;
280 			case GET:
281 				get(dbp, &key);
282 				if (type != DB_RECNO)
283 					free(key.data);
284 				state = COMMAND;
285 				break;
286 			case PUT:
287 				state = DATA;
288 				break;
289 			case REMOVE:
290 				rem(dbp, &key);
291 				if ((type != DB_RECNO) && (flags != R_CURSOR))
292 					free(key.data);
293 				state = COMMAND;
294 				break;
295 			case SEQ:
296 				seq(dbp, &key);
297 				if ((type != DB_RECNO) && (flags != R_CURSOR))
298 					free(key.data);
299 				state = COMMAND;
300 				break;
301 			default:
302 				err("line %lu: command doesn't take a key",
303 				    lineno);
304 			}
305 			break;
306 		case 'o':
307 			dump(dbp, p[1] == 'r');
308 			break;
309 		default:
310 			err("line %lu: %s: unknown command character",
311 			    lineno, p);
312 		}
313 	}
314 #ifdef STATISTICS
315 	/*
316 	 * -l must be used (DB_LOCK must be set) for this to be
317 	 * used, otherwise a page will be locked and it will fail.
318 	 */
319 	if (type == DB_BTREE && oflags & DB_LOCK)
320 		__bt_stat(dbp);
321 #endif
322 	if (dbp->close(dbp))
323 		err("db->close: %s", strerror(errno));
324 	(void)close(ofd);
325 	exit(0);
326 }
327 
328 #define	NOOVERWRITE	"put failed, would overwrite key\n"
329 
330 void
331 compare(db1, db2)
332 	DBT *db1, *db2;
333 {
334 	size_t len;
335 	u_char *p1, *p2;
336 
337 	if (db1->size != db2->size)
338 		printf("compare failed: key->data len %lu != data len %lu\n",
339 		    db1->size, db2->size);
340 
341 	len = MIN(db1->size, db2->size);
342 	for (p1 = db1->data, p2 = db2->data; len--;)
343 		if (*p1++ != *p2++) {
344 			printf("compare failed at offset %d\n",
345 			    p1 - (u_char *)db1->data);
346 			break;
347 		}
348 }
349 
350 void
351 get(dbp, kp)
352 	DB *dbp;
353 	DBT *kp;
354 {
355 	DBT data;
356 
357 	switch (dbp->get(dbp, kp, &data, flags)) {
358 	case 0:
359 		(void)write(ofd, data.data, data.size);
360 		if (ofd == STDOUT_FILENO)
361 			(void)write(ofd, "\n", 1);
362 		break;
363 	case -1:
364 		err("line %lu: get: %s", lineno, strerror(errno));
365 		/* NOTREACHED */
366 	case 1:
367 #define	NOSUCHKEY	"get failed, no such key\n"
368 		if (ofd != STDOUT_FILENO)
369 			(void)write(ofd, NOSUCHKEY, sizeof(NOSUCHKEY) - 1);
370 		else
371 			(void)fprintf(stderr, "%d: %.*s: %s",
372 			    lineno, MIN(kp->size, 20), kp->data, NOSUCHKEY);
373 #undef	NOSUCHKEY
374 		break;
375 	}
376 }
377 
378 void
379 getdata(dbp, kp, dp)
380 	DB *dbp;
381 	DBT *kp, *dp;
382 {
383 	switch (dbp->get(dbp, kp, dp, flags)) {
384 	case 0:
385 		return;
386 	case -1:
387 		err("line %lu: getdata: %s", lineno, strerror(errno));
388 		/* NOTREACHED */
389 	case 1:
390 		err("line %lu: getdata failed, no such key", lineno);
391 		/* NOTREACHED */
392 	}
393 }
394 
395 void
396 put(dbp, kp, dp)
397 	DB *dbp;
398 	DBT *kp, *dp;
399 {
400 	switch (dbp->put(dbp, kp, dp, flags)) {
401 	case 0:
402 		break;
403 	case -1:
404 		err("line %lu: put: %s", lineno, strerror(errno));
405 		/* NOTREACHED */
406 	case 1:
407 		(void)write(ofd, NOOVERWRITE, sizeof(NOOVERWRITE) - 1);
408 		break;
409 	}
410 }
411 
412 void
413 rem(dbp, kp)
414 	DB *dbp;
415 	DBT *kp;
416 {
417 	switch (dbp->del(dbp, kp, flags)) {
418 	case 0:
419 		break;
420 	case -1:
421 		err("line %lu: rem: %s", lineno, strerror(errno));
422 		/* NOTREACHED */
423 	case 1:
424 #define	NOSUCHKEY	"rem failed, no such key\n"
425 		if (ofd != STDOUT_FILENO)
426 			(void)write(ofd, NOSUCHKEY, sizeof(NOSUCHKEY) - 1);
427 		else if (flags != R_CURSOR)
428 			(void)fprintf(stderr, "%d: %.*s: %s",
429 			    lineno, MIN(kp->size, 20), kp->data, NOSUCHKEY);
430 		else
431 			(void)fprintf(stderr,
432 			    "%d: rem of cursor failed\n", lineno);
433 #undef	NOSUCHKEY
434 		break;
435 	}
436 }
437 
438 void
439 synk(dbp)
440 	DB *dbp;
441 {
442 	switch (dbp->sync(dbp, flags)) {
443 	case 0:
444 		break;
445 	case -1:
446 		err("line %lu: synk: %s", lineno, strerror(errno));
447 		/* NOTREACHED */
448 	}
449 }
450 
451 void
452 seq(dbp, kp)
453 	DB *dbp;
454 	DBT *kp;
455 {
456 	DBT data;
457 
458 	switch (dbp->seq(dbp, kp, &data, flags)) {
459 	case 0:
460 		(void)write(ofd, data.data, data.size);
461 		if (ofd == STDOUT_FILENO)
462 			(void)write(ofd, "\n", 1);
463 		break;
464 	case -1:
465 		err("line %lu: seq: %s", lineno, strerror(errno));
466 		/* NOTREACHED */
467 	case 1:
468 #define	NOSUCHKEY	"seq failed, no such key\n"
469 		if (ofd != STDOUT_FILENO)
470 			(void)write(ofd, NOSUCHKEY, sizeof(NOSUCHKEY) - 1);
471 		else if (flags == R_CURSOR)
472 			(void)fprintf(stderr, "%d: %.*s: %s",
473 			    lineno, MIN(kp->size, 20), kp->data, NOSUCHKEY);
474 		else
475 			(void)fprintf(stderr,
476 			    "%d: seq (%s) failed\n", lineno, sflags(flags));
477 #undef	NOSUCHKEY
478 		break;
479 	}
480 }
481 
482 void
483 dump(dbp, rev)
484 	DB *dbp;
485 	int rev;
486 {
487 	DBT key, data;
488 	int flags, nflags;
489 
490 	if (rev) {
491 		flags = R_LAST;
492 		nflags = R_PREV;
493 	} else {
494 		flags = R_FIRST;
495 		nflags = R_NEXT;
496 	}
497 	for (;; flags = nflags)
498 		switch (dbp->seq(dbp, &key, &data, flags)) {
499 		case 0:
500 			(void)write(ofd, data.data, data.size);
501 			if (ofd == STDOUT_FILENO)
502 				(void)write(ofd, "\n", 1);
503 			break;
504 		case 1:
505 			goto done;
506 		case -1:
507 			err("line %lu: (dump) seq: %s",
508 			    lineno, strerror(errno));
509 			/* NOTREACHED */
510 		}
511 done:	return;
512 }
513 
514 u_int
515 setflags(s)
516 	char *s;
517 {
518 	char *p, *index();
519 
520 	for (; isspace(*s); ++s);
521 	if (*s == '\n' || *s == '\0')
522 		return (0);
523 	if ((p = index(s, '\n')) != NULL)
524 		*p = '\0';
525 	if (!strcmp(s, "R_CURSOR"))		return (R_CURSOR);
526 	if (!strcmp(s, "R_FIRST"))		return (R_FIRST);
527 	if (!strcmp(s, "R_IAFTER")) 		return (R_IAFTER);
528 	if (!strcmp(s, "R_IBEFORE")) 		return (R_IBEFORE);
529 	if (!strcmp(s, "R_LAST")) 		return (R_LAST);
530 	if (!strcmp(s, "R_NEXT")) 		return (R_NEXT);
531 	if (!strcmp(s, "R_NOOVERWRITE"))	return (R_NOOVERWRITE);
532 	if (!strcmp(s, "R_PREV"))		return (R_PREV);
533 	if (!strcmp(s, "R_SETCURSOR"))		return (R_SETCURSOR);
534 
535 	err("line %lu: %s: unknown flag", lineno, s);
536 	/* NOTREACHED */
537 }
538 
539 char *
540 sflags(flags)
541 	int flags;
542 {
543 	switch (flags) {
544 	case R_CURSOR:		return ("R_CURSOR");
545 	case R_FIRST:		return ("R_FIRST");
546 	case R_IAFTER:		return ("R_IAFTER");
547 	case R_IBEFORE:		return ("R_IBEFORE");
548 	case R_LAST:		return ("R_LAST");
549 	case R_NEXT:		return ("R_NEXT");
550 	case R_NOOVERWRITE:	return ("R_NOOVERWRITE");
551 	case R_PREV:		return ("R_PREV");
552 	case R_SETCURSOR:	return ("R_SETCURSOR");
553 	}
554 
555 	return ("UNKNOWN!");
556 }
557 
558 DBTYPE
559 dbtype(s)
560 	char *s;
561 {
562 	if (!strcmp(s, "btree"))
563 		return (DB_BTREE);
564 	if (!strcmp(s, "hash"))
565 		return (DB_HASH);
566 	if (!strcmp(s, "recno"))
567 		return (DB_RECNO);
568 	err("%s: unknown type (use btree, hash or recno)", s);
569 	/* NOTREACHED */
570 }
571 
572 void *
573 setinfo(type, s)
574 	DBTYPE type;
575 	char *s;
576 {
577 	static BTREEINFO ib;
578 	static HASHINFO ih;
579 	static RECNOINFO rh;
580 	char *eq, *index();
581 
582 	if ((eq = index(s, '=')) == NULL)
583 		err("%s: illegal structure set statement", s);
584 	*eq++ = '\0';
585 	if (!isdigit(*eq))
586 		err("%s: structure set statement must be a number", s);
587 
588 	switch (type) {
589 	case DB_BTREE:
590 		if (!strcmp("flags", s)) {
591 			ib.flags = atoi(eq);
592 			return (&ib);
593 		}
594 		if (!strcmp("cachesize", s)) {
595 			ib.cachesize = atoi(eq);
596 			return (&ib);
597 		}
598 		if (!strcmp("maxkeypage", s)) {
599 			ib.maxkeypage = atoi(eq);
600 			return (&ib);
601 		}
602 		if (!strcmp("minkeypage", s)) {
603 			ib.minkeypage = atoi(eq);
604 			return (&ib);
605 		}
606 		if (!strcmp("lorder", s)) {
607 			ib.lorder = atoi(eq);
608 			return (&ib);
609 		}
610 		if (!strcmp("psize", s)) {
611 			ib.psize = atoi(eq);
612 			return (&ib);
613 		}
614 		break;
615 	case DB_HASH:
616 		if (!strcmp("bsize", s)) {
617 			ih.bsize = atoi(eq);
618 			return (&ih);
619 		}
620 		if (!strcmp("ffactor", s)) {
621 			ih.ffactor = atoi(eq);
622 			return (&ih);
623 		}
624 		if (!strcmp("nelem", s)) {
625 			ih.nelem = atoi(eq);
626 			return (&ih);
627 		}
628 		if (!strcmp("cachesize", s)) {
629 			ih.cachesize = atoi(eq);
630 			return (&ih);
631 		}
632 		if (!strcmp("lorder", s)) {
633 			ih.lorder = atoi(eq);
634 			return (&ih);
635 		}
636 		break;
637 	case DB_RECNO:
638 		if (!strcmp("flags", s)) {
639 			rh.flags = atoi(eq);
640 			return (&rh);
641 		}
642 		if (!strcmp("cachesize", s)) {
643 			rh.cachesize = atoi(eq);
644 			return (&rh);
645 		}
646 		if (!strcmp("lorder", s)) {
647 			rh.lorder = atoi(eq);
648 			return (&rh);
649 		}
650 		if (!strcmp("reclen", s)) {
651 			rh.reclen = atoi(eq);
652 			return (&rh);
653 		}
654 		if (!strcmp("bval", s)) {
655 			rh.bval = atoi(eq);
656 			return (&rh);
657 		}
658 		if (!strcmp("psize", s)) {
659 			rh.psize = atoi(eq);
660 			return (&rh);
661 		}
662 		break;
663 	}
664 	err("%s: unknown structure value", s);
665 	/* NOTREACHED */
666 }
667 
668 void *
669 rfile(name, lenp)
670 	char *name;
671 	size_t *lenp;
672 {
673 	struct stat sb;
674 	void *p;
675 	int fd;
676 	char *np, *index();
677 
678 	for (; isspace(*name); ++name);
679 	if ((np = index(name, '\n')) != NULL)
680 		*np = '\0';
681 	if ((fd = open(name, O_RDONLY, 0)) < 0 ||
682 	    fstat(fd, &sb))
683 		err("%s: %s\n", name, strerror(errno));
684 #ifdef NOT_PORTABLE
685 	if (sb.st_size > (off_t)SIZE_T_MAX)
686 		err("%s: %s\n", name, strerror(E2BIG));
687 #endif
688 	if ((p = (void *)malloc((u_int)sb.st_size)) == NULL)
689 		err("%s", strerror(errno));
690 	(void)read(fd, p, (int)sb.st_size);
691 	*lenp = sb.st_size;
692 	(void)close(fd);
693 	return (p);
694 }
695 
696 void *
697 xmalloc(text, len)
698 	char *text;
699 	size_t len;
700 {
701 	void *p;
702 
703 	if ((p = (void *)malloc(len)) == NULL)
704 		err("%s", strerror(errno));
705 	memmove(p, text, len);
706 	return (p);
707 }
708 
709 void
710 usage()
711 {
712 	(void)fprintf(stderr,
713 	    "usage: dbtest [-l] [-f file] [-i info] [-o file] type script\n");
714 	exit(1);
715 }
716 
717 #include <stdarg.h>
718 
719 void
720 err(const char *fmt, ...)
721 {
722 	va_list ap;
723 	va_start(ap, fmt);
724 	(void)fprintf(stderr, "dbtest: ");
725 	(void)vfprintf(stderr, fmt, ap);
726 	va_end(ap);
727 	(void)fprintf(stderr, "\n");
728 	exit(1);
729 	/* NOTREACHED */
730 }
731