xref: /freebsd/lib/libc/db/test/dbtest.c (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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  * 4. 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 
30 #ifndef lint
31 static char copyright[] =
32 "@(#) Copyright (c) 1992, 1993, 1994\n\
33 	The Regents of the University of California.  All rights reserved.\n";
34 #endif /* not lint */
35 
36 #if defined(LIBC_SCCS) && !defined(lint)
37 static char sccsid[] = "@(#)dbtest.c	8.17 (Berkeley) 9/1/94";
38 #endif /* LIBC_SCCS and not lint */
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
41 
42 #include <sys/param.h>
43 #include <sys/stat.h>
44 
45 #include <ctype.h>
46 #include <errno.h>
47 #include <fcntl.h>
48 #include <limits.h>
49 #include <stdio.h>
50 #include <stdlib.h>
51 #include <string.h>
52 #include <unistd.h>
53 
54 #include <db.h>
55 
56 enum S { COMMAND, COMPARE, GET, PUT, REMOVE, SEQ, SEQFLAG, KEY, DATA };
57 
58 void	 compare(DBT *, DBT *);
59 DBTYPE	 dbtype(char *);
60 void	 dump(DB *, int);
61 void	 err(const char *, ...) __printflike(1, 2);
62 void	 get(DB *, DBT *);
63 void	 getdata(DB *, DBT *, DBT *);
64 void	 put(DB *, DBT *, DBT *);
65 void	 rem(DB *, DBT *);
66 char	*sflags(int);
67 void	 synk(DB *);
68 void	*rfile(char *, size_t *);
69 void	 seq(DB *, DBT *);
70 u_int	 setflags(char *);
71 void	*setinfo(DBTYPE, char *);
72 void	 usage(void);
73 void	*xmalloc(char *, size_t);
74 
75 DBTYPE type;				/* Database type. */
76 void *infop;				/* Iflags. */
77 u_long lineno;				/* Current line in test script. */
78 u_int flags;				/* Current DB flags. */
79 int ofd = STDOUT_FILENO;		/* Standard output fd. */
80 
81 DB *XXdbp;				/* Global for gdb. */
82 int XXlineno;				/* Fast breakpoint for gdb. */
83 
84 int
85 main(argc, argv)
86 	int argc;
87 	char *argv[];
88 {
89 	extern int optind;
90 	extern char *optarg;
91 	enum S command, state;
92 	DB *dbp;
93 	DBT data, key, keydata;
94 	size_t len;
95 	int ch, oflags, sflag;
96 	char *fname, *infoarg, *p, *t, buf[8 * 1024];
97 
98 	infoarg = NULL;
99 	fname = NULL;
100 	oflags = O_CREAT | O_RDWR;
101 	sflag = 0;
102 	while ((ch = getopt(argc, argv, "f:i:lo:s")) != EOF)
103 		switch (ch) {
104 		case 'f':
105 			fname = optarg;
106 			break;
107 		case 'i':
108 			infoarg = optarg;
109 			break;
110 		case 'l':
111 			oflags |= DB_LOCK;
112 			break;
113 		case 'o':
114 			if ((ofd = open(optarg,
115 			    O_WRONLY|O_CREAT|O_TRUNC, 0666)) < 0)
116 				err("%s: %s", optarg, strerror(errno));
117 			break;
118 		case 's':
119 			sflag = 1;
120 			break;
121 		case '?':
122 		default:
123 			usage();
124 		}
125 	argc -= optind;
126 	argv += optind;
127 
128 	if (argc != 2)
129 		usage();
130 
131 	/* Set the type. */
132 	type = dbtype(*argv++);
133 
134 	/* Open the descriptor file. */
135         if (strcmp(*argv, "-") && freopen(*argv, "r", stdin) == NULL)
136 	    err("%s: %s", *argv, strerror(errno));
137 
138 	/* Set up the db structure as necessary. */
139 	if (infoarg == NULL)
140 		infop = NULL;
141 	else
142 		for (p = strtok(infoarg, ",\t "); p != NULL;
143 		    p = strtok(0, ",\t "))
144 			if (*p != '\0')
145 				infop = setinfo(type, p);
146 
147 	/*
148 	 * Open the DB.  Delete any preexisting copy, you almost never
149 	 * want it around, and it often screws up tests.
150 	 */
151 	if (fname == NULL) {
152 		p = getenv("TMPDIR");
153 		if (p == NULL)
154 			p = "/var/tmp";
155 		(void)snprintf(buf, sizeof(buf), "%s/__dbtest", p);
156 		fname = buf;
157 		(void)unlink(buf);
158 	} else  if (!sflag)
159 		(void)unlink(fname);
160 
161 	if ((dbp = dbopen(fname,
162 	    oflags, S_IRUSR | S_IWUSR, type, infop)) == NULL)
163 		err("dbopen: %s", strerror(errno));
164 	XXdbp = dbp;
165 
166 	state = COMMAND;
167 	for (lineno = 1;
168 	    (p = fgets(buf, sizeof(buf), stdin)) != NULL; ++lineno) {
169 		/* Delete the newline, displaying the key/data is easier. */
170 		if (ofd == STDOUT_FILENO && (t = strchr(p, '\n')) != NULL)
171 			*t = '\0';
172 		if ((len = strlen(buf)) == 0 || isspace(*p) || *p == '#')
173 			continue;
174 
175 		/* Convenient gdb break point. */
176 		if (XXlineno == lineno)
177 			XXlineno = 1;
178 		switch (*p) {
179 		case 'c':			/* compare */
180 			if (state != COMMAND)
181 				err("line %lu: not expecting command", lineno);
182 			state = KEY;
183 			command = COMPARE;
184 			break;
185 		case 'e':			/* echo */
186 			if (state != COMMAND)
187 				err("line %lu: not expecting command", lineno);
188 			/* Don't display the newline, if CR at EOL. */
189 			if (p[len - 2] == '\r')
190 				--len;
191 			if (write(ofd, p + 1, len - 1) != len - 1 ||
192 			    write(ofd, "\n", 1) != 1)
193 				err("write: %s", strerror(errno));
194 			break;
195 		case 'g':			/* get */
196 			if (state != COMMAND)
197 				err("line %lu: not expecting command", lineno);
198 			state = KEY;
199 			command = GET;
200 			break;
201 		case 'p':			/* put */
202 			if (state != COMMAND)
203 				err("line %lu: not expecting command", lineno);
204 			state = KEY;
205 			command = PUT;
206 			break;
207 		case 'r':			/* remove */
208 			if (state != COMMAND)
209 				err("line %lu: not expecting command", lineno);
210                         if (flags == R_CURSOR) {
211 				rem(dbp, &key);
212 				state = COMMAND;
213                         } else {
214 				state = KEY;
215 				command = REMOVE;
216 			}
217 			break;
218 		case 'S':			/* sync */
219 			if (state != COMMAND)
220 				err("line %lu: not expecting command", lineno);
221 			synk(dbp);
222 			state = COMMAND;
223 			break;
224 		case 's':			/* seq */
225 			if (state != COMMAND)
226 				err("line %lu: not expecting command", lineno);
227 			if (flags == R_CURSOR) {
228 				state = KEY;
229 				command = SEQ;
230 			} else
231 				seq(dbp, &key);
232 			break;
233 		case 'f':
234 			flags = setflags(p + 1);
235 			break;
236 		case 'D':			/* data file */
237 			if (state != DATA)
238 				err("line %lu: not expecting data", lineno);
239 			data.data = rfile(p + 1, &data.size);
240 			goto ldata;
241 		case 'd':			/* data */
242 			if (state != DATA)
243 				err("line %lu: not expecting data", lineno);
244 			data.data = xmalloc(p + 1, len - 1);
245 			data.size = len - 1;
246 ldata:			switch (command) {
247 			case COMPARE:
248 				compare(&keydata, &data);
249 				break;
250 			case PUT:
251 				put(dbp, &key, &data);
252 				break;
253 			default:
254 				err("line %lu: command doesn't take data",
255 				    lineno);
256 			}
257 			if (type != DB_RECNO)
258 				free(key.data);
259 			free(data.data);
260 			state = COMMAND;
261 			break;
262 		case 'K':			/* key file */
263 			if (state != KEY)
264 				err("line %lu: not expecting a key", lineno);
265 			if (type == DB_RECNO)
266 				err("line %lu: 'K' not available for recno",
267 				    lineno);
268 			key.data = rfile(p + 1, &key.size);
269 			goto lkey;
270 		case 'k':			/* key */
271 			if (state != KEY)
272 				err("line %lu: not expecting a key", lineno);
273 			if (type == DB_RECNO) {
274 				static recno_t recno;
275 				recno = atoi(p + 1);
276 				key.data = &recno;
277 				key.size = sizeof(recno);
278 			} else {
279 				key.data = xmalloc(p + 1, len - 1);
280 				key.size = len - 1;
281 			}
282 lkey:			switch (command) {
283 			case COMPARE:
284 				getdata(dbp, &key, &keydata);
285 				state = DATA;
286 				break;
287 			case GET:
288 				get(dbp, &key);
289 				if (type != DB_RECNO)
290 					free(key.data);
291 				state = COMMAND;
292 				break;
293 			case PUT:
294 				state = DATA;
295 				break;
296 			case REMOVE:
297 				rem(dbp, &key);
298 				if ((type != DB_RECNO) && (flags != R_CURSOR))
299 					free(key.data);
300 				state = COMMAND;
301 				break;
302 			case SEQ:
303 				seq(dbp, &key);
304 				if ((type != DB_RECNO) && (flags != R_CURSOR))
305 					free(key.data);
306 				state = COMMAND;
307 				break;
308 			default:
309 				err("line %lu: command doesn't take a key",
310 				    lineno);
311 			}
312 			break;
313 		case 'o':
314 			dump(dbp, p[1] == 'r');
315 			break;
316 		default:
317 			err("line %lu: %s: unknown command character",
318 			    lineno, p);
319 		}
320 	}
321 #ifdef STATISTICS
322 	/*
323 	 * -l must be used (DB_LOCK must be set) for this to be
324 	 * used, otherwise a page will be locked and it will fail.
325 	 */
326 	if (type == DB_BTREE && oflags & DB_LOCK)
327 		__bt_stat(dbp);
328 #endif
329 	if (dbp->close(dbp))
330 		err("db->close: %s", strerror(errno));
331 	(void)close(ofd);
332 	exit(0);
333 }
334 
335 #define	NOOVERWRITE	"put failed, would overwrite key\n"
336 
337 void
338 compare(db1, db2)
339 	DBT *db1, *db2;
340 {
341 	size_t len;
342 	u_char *p1, *p2;
343 
344 	if (db1->size != db2->size)
345 		printf("compare failed: key->data len %lu != data len %lu\n",
346 		    db1->size, db2->size);
347 
348 	len = MIN(db1->size, db2->size);
349 	for (p1 = db1->data, p2 = db2->data; len--;)
350 		if (*p1++ != *p2++) {
351 			printf("compare failed at offset %d\n",
352 			    p1 - (u_char *)db1->data);
353 			break;
354 		}
355 }
356 
357 void
358 get(dbp, kp)
359 	DB *dbp;
360 	DBT *kp;
361 {
362 	DBT data;
363 
364 	switch (dbp->get(dbp, kp, &data, flags)) {
365 	case 0:
366 		(void)write(ofd, data.data, data.size);
367 		if (ofd == STDOUT_FILENO)
368 			(void)write(ofd, "\n", 1);
369 		break;
370 	case -1:
371 		err("line %lu: get: %s", lineno, strerror(errno));
372 		/* NOTREACHED */
373 	case 1:
374 #define	NOSUCHKEY	"get failed, no such key\n"
375 		if (ofd != STDOUT_FILENO)
376 			(void)write(ofd, NOSUCHKEY, sizeof(NOSUCHKEY) - 1);
377 		else
378 			(void)fprintf(stderr, "%d: %.*s: %s",
379 			    lineno, MIN(kp->size, 20), kp->data, NOSUCHKEY);
380 #undef	NOSUCHKEY
381 		break;
382 	}
383 }
384 
385 void
386 getdata(dbp, kp, dp)
387 	DB *dbp;
388 	DBT *kp, *dp;
389 {
390 	switch (dbp->get(dbp, kp, dp, flags)) {
391 	case 0:
392 		return;
393 	case -1:
394 		err("line %lu: getdata: %s", lineno, strerror(errno));
395 		/* NOTREACHED */
396 	case 1:
397 		err("line %lu: getdata failed, no such key", lineno);
398 		/* NOTREACHED */
399 	}
400 }
401 
402 void
403 put(dbp, kp, dp)
404 	DB *dbp;
405 	DBT *kp, *dp;
406 {
407 	switch (dbp->put(dbp, kp, dp, flags)) {
408 	case 0:
409 		break;
410 	case -1:
411 		err("line %lu: put: %s", lineno, strerror(errno));
412 		/* NOTREACHED */
413 	case 1:
414 		(void)write(ofd, NOOVERWRITE, sizeof(NOOVERWRITE) - 1);
415 		break;
416 	}
417 }
418 
419 void
420 rem(dbp, kp)
421 	DB *dbp;
422 	DBT *kp;
423 {
424 	switch (dbp->del(dbp, kp, flags)) {
425 	case 0:
426 		break;
427 	case -1:
428 		err("line %lu: rem: %s", lineno, strerror(errno));
429 		/* NOTREACHED */
430 	case 1:
431 #define	NOSUCHKEY	"rem failed, no such key\n"
432 		if (ofd != STDOUT_FILENO)
433 			(void)write(ofd, NOSUCHKEY, sizeof(NOSUCHKEY) - 1);
434 		else if (flags != R_CURSOR)
435 			(void)fprintf(stderr, "%d: %.*s: %s",
436 			    lineno, MIN(kp->size, 20), kp->data, NOSUCHKEY);
437 		else
438 			(void)fprintf(stderr,
439 			    "%d: rem of cursor failed\n", lineno);
440 #undef	NOSUCHKEY
441 		break;
442 	}
443 }
444 
445 void
446 synk(dbp)
447 	DB *dbp;
448 {
449 	switch (dbp->sync(dbp, flags)) {
450 	case 0:
451 		break;
452 	case -1:
453 		err("line %lu: synk: %s", lineno, strerror(errno));
454 		/* NOTREACHED */
455 	}
456 }
457 
458 void
459 seq(dbp, kp)
460 	DB *dbp;
461 	DBT *kp;
462 {
463 	DBT data;
464 
465 	switch (dbp->seq(dbp, kp, &data, flags)) {
466 	case 0:
467 		(void)write(ofd, data.data, data.size);
468 		if (ofd == STDOUT_FILENO)
469 			(void)write(ofd, "\n", 1);
470 		break;
471 	case -1:
472 		err("line %lu: seq: %s", lineno, strerror(errno));
473 		/* NOTREACHED */
474 	case 1:
475 #define	NOSUCHKEY	"seq failed, no such key\n"
476 		if (ofd != STDOUT_FILENO)
477 			(void)write(ofd, NOSUCHKEY, sizeof(NOSUCHKEY) - 1);
478 		else if (flags == R_CURSOR)
479 			(void)fprintf(stderr, "%d: %.*s: %s",
480 			    lineno, MIN(kp->size, 20), kp->data, NOSUCHKEY);
481 		else
482 			(void)fprintf(stderr,
483 			    "%d: seq (%s) failed\n", lineno, sflags(flags));
484 #undef	NOSUCHKEY
485 		break;
486 	}
487 }
488 
489 void
490 dump(dbp, rev)
491 	DB *dbp;
492 	int rev;
493 {
494 	DBT key, data;
495 	int flags, nflags;
496 
497 	if (rev) {
498 		flags = R_LAST;
499 		nflags = R_PREV;
500 	} else {
501 		flags = R_FIRST;
502 		nflags = R_NEXT;
503 	}
504 	for (;; flags = nflags)
505 		switch (dbp->seq(dbp, &key, &data, flags)) {
506 		case 0:
507 			(void)write(ofd, data.data, data.size);
508 			if (ofd == STDOUT_FILENO)
509 				(void)write(ofd, "\n", 1);
510 			break;
511 		case 1:
512 			goto done;
513 		case -1:
514 			err("line %lu: (dump) seq: %s",
515 			    lineno, strerror(errno));
516 			/* NOTREACHED */
517 		}
518 done:	return;
519 }
520 
521 u_int
522 setflags(s)
523 	char *s;
524 {
525 	char *p, *index();
526 
527 	for (; isspace(*s); ++s);
528 	if (*s == '\n' || *s == '\0')
529 		return (0);
530 	if ((p = index(s, '\n')) != NULL)
531 		*p = '\0';
532 	if (!strcmp(s, "R_CURSOR"))		return (R_CURSOR);
533 	if (!strcmp(s, "R_FIRST"))		return (R_FIRST);
534 	if (!strcmp(s, "R_IAFTER")) 		return (R_IAFTER);
535 	if (!strcmp(s, "R_IBEFORE")) 		return (R_IBEFORE);
536 	if (!strcmp(s, "R_LAST")) 		return (R_LAST);
537 	if (!strcmp(s, "R_NEXT")) 		return (R_NEXT);
538 	if (!strcmp(s, "R_NOOVERWRITE"))	return (R_NOOVERWRITE);
539 	if (!strcmp(s, "R_PREV"))		return (R_PREV);
540 	if (!strcmp(s, "R_SETCURSOR"))		return (R_SETCURSOR);
541 
542 	err("line %lu: %s: unknown flag", lineno, s);
543 	/* NOTREACHED */
544 }
545 
546 char *
547 sflags(flags)
548 	int flags;
549 {
550 	switch (flags) {
551 	case R_CURSOR:		return ("R_CURSOR");
552 	case R_FIRST:		return ("R_FIRST");
553 	case R_IAFTER:		return ("R_IAFTER");
554 	case R_IBEFORE:		return ("R_IBEFORE");
555 	case R_LAST:		return ("R_LAST");
556 	case R_NEXT:		return ("R_NEXT");
557 	case R_NOOVERWRITE:	return ("R_NOOVERWRITE");
558 	case R_PREV:		return ("R_PREV");
559 	case R_SETCURSOR:	return ("R_SETCURSOR");
560 	}
561 
562 	return ("UNKNOWN!");
563 }
564 
565 DBTYPE
566 dbtype(s)
567 	char *s;
568 {
569 	if (!strcmp(s, "btree"))
570 		return (DB_BTREE);
571 	if (!strcmp(s, "hash"))
572 		return (DB_HASH);
573 	if (!strcmp(s, "recno"))
574 		return (DB_RECNO);
575 	err("%s: unknown type (use btree, hash or recno)", s);
576 	/* NOTREACHED */
577 }
578 
579 void *
580 setinfo(type, s)
581 	DBTYPE type;
582 	char *s;
583 {
584 	static BTREEINFO ib;
585 	static HASHINFO ih;
586 	static RECNOINFO rh;
587 	char *eq, *index();
588 
589 	if ((eq = index(s, '=')) == NULL)
590 		err("%s: illegal structure set statement", s);
591 	*eq++ = '\0';
592 	if (!isdigit(*eq))
593 		err("%s: structure set statement must be a number", s);
594 
595 	switch (type) {
596 	case DB_BTREE:
597 		if (!strcmp("flags", s)) {
598 			ib.flags = atoi(eq);
599 			return (&ib);
600 		}
601 		if (!strcmp("cachesize", s)) {
602 			ib.cachesize = atoi(eq);
603 			return (&ib);
604 		}
605 		if (!strcmp("maxkeypage", s)) {
606 			ib.maxkeypage = atoi(eq);
607 			return (&ib);
608 		}
609 		if (!strcmp("minkeypage", s)) {
610 			ib.minkeypage = atoi(eq);
611 			return (&ib);
612 		}
613 		if (!strcmp("lorder", s)) {
614 			ib.lorder = atoi(eq);
615 			return (&ib);
616 		}
617 		if (!strcmp("psize", s)) {
618 			ib.psize = atoi(eq);
619 			return (&ib);
620 		}
621 		break;
622 	case DB_HASH:
623 		if (!strcmp("bsize", s)) {
624 			ih.bsize = atoi(eq);
625 			return (&ih);
626 		}
627 		if (!strcmp("ffactor", s)) {
628 			ih.ffactor = atoi(eq);
629 			return (&ih);
630 		}
631 		if (!strcmp("nelem", s)) {
632 			ih.nelem = atoi(eq);
633 			return (&ih);
634 		}
635 		if (!strcmp("cachesize", s)) {
636 			ih.cachesize = atoi(eq);
637 			return (&ih);
638 		}
639 		if (!strcmp("lorder", s)) {
640 			ih.lorder = atoi(eq);
641 			return (&ih);
642 		}
643 		break;
644 	case DB_RECNO:
645 		if (!strcmp("flags", s)) {
646 			rh.flags = atoi(eq);
647 			return (&rh);
648 		}
649 		if (!strcmp("cachesize", s)) {
650 			rh.cachesize = atoi(eq);
651 			return (&rh);
652 		}
653 		if (!strcmp("lorder", s)) {
654 			rh.lorder = atoi(eq);
655 			return (&rh);
656 		}
657 		if (!strcmp("reclen", s)) {
658 			rh.reclen = atoi(eq);
659 			return (&rh);
660 		}
661 		if (!strcmp("bval", s)) {
662 			rh.bval = atoi(eq);
663 			return (&rh);
664 		}
665 		if (!strcmp("psize", s)) {
666 			rh.psize = atoi(eq);
667 			return (&rh);
668 		}
669 		break;
670 	}
671 	err("%s: unknown structure value", s);
672 	/* NOTREACHED */
673 }
674 
675 void *
676 rfile(name, lenp)
677 	char *name;
678 	size_t *lenp;
679 {
680 	struct stat sb;
681 	void *p;
682 	int fd;
683 	char *np, *index();
684 
685 	for (; isspace(*name); ++name);
686 	if ((np = index(name, '\n')) != NULL)
687 		*np = '\0';
688 	if ((fd = open(name, O_RDONLY, 0)) < 0 ||
689 	    fstat(fd, &sb))
690 		err("%s: %s\n", name, strerror(errno));
691 #ifdef NOT_PORTABLE
692 	if (sb.st_size > (off_t)SIZE_T_MAX)
693 		err("%s: %s\n", name, strerror(E2BIG));
694 #endif
695 	if ((p = (void *)malloc((u_int)sb.st_size)) == NULL)
696 		err("%s", strerror(errno));
697 	(void)read(fd, p, (int)sb.st_size);
698 	*lenp = sb.st_size;
699 	(void)close(fd);
700 	return (p);
701 }
702 
703 void *
704 xmalloc(text, len)
705 	char *text;
706 	size_t len;
707 {
708 	void *p;
709 
710 	if ((p = (void *)malloc(len)) == NULL)
711 		err("%s", strerror(errno));
712 	memmove(p, text, len);
713 	return (p);
714 }
715 
716 void
717 usage()
718 {
719 	(void)fprintf(stderr,
720 	    "usage: dbtest [-l] [-f file] [-i info] [-o file] type script\n");
721 	exit(1);
722 }
723 
724 #include <stdarg.h>
725 
726 void
727 err(const char *fmt, ...)
728 {
729 	va_list ap;
730 
731 	va_start(ap, fmt);
732 	(void)fprintf(stderr, "dbtest: ");
733 	(void)vfprintf(stderr, fmt, ap);
734 	va_end(ap);
735 	(void)fprintf(stderr, "\n");
736 	exit(1);
737 	/* NOTREACHED */
738 }
739