1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
24 * Copyright 2020 Joyent, Inc.
25 */
26
27 #include <sys/types.h>
28 #include <sys/stat.h>
29 #include <sys/swap.h>
30 #include <sys/dumpadm.h>
31 #include <sys/utsname.h>
32
33 #include <unistd.h>
34 #include <string.h>
35 #include <stdlib.h>
36 #include <stdio.h>
37 #include <fcntl.h>
38 #include <errno.h>
39 #include <libdiskmgt.h>
40 #include <libzfs.h>
41 #include <libzutil.h>
42 #include <uuid/uuid.h>
43
44 #include "dconf.h"
45 #include "minfree.h"
46 #include "utils.h"
47 #include "swap.h"
48
49 typedef struct dc_token {
50 const char *tok_name;
51 int (*tok_parse)(dumpconf_t *, char *);
52 int (*tok_print)(const dumpconf_t *, FILE *);
53 } dc_token_t;
54
55
56 static int print_device(const dumpconf_t *, FILE *);
57 static int print_savdir(const dumpconf_t *, FILE *);
58 static int print_content(const dumpconf_t *, FILE *);
59 static int print_enable(const dumpconf_t *, FILE *);
60 static int print_csave(const dumpconf_t *, FILE *);
61
62 static const dc_token_t tokens[] = {
63 { "DUMPADM_DEVICE", dconf_str2device, print_device },
64 { "DUMPADM_SAVDIR", dconf_str2savdir, print_savdir },
65 { "DUMPADM_CONTENT", dconf_str2content, print_content },
66 { "DUMPADM_ENABLE", dconf_str2enable, print_enable },
67 { "DUMPADM_CSAVE", dconf_str2csave, print_csave },
68 { NULL, NULL, NULL }
69 };
70
71 static const char DC_STR_ON[] = "on"; /* On string */
72 static const char DC_STR_OFF[] = "off"; /* Off string */
73 static const char DC_STR_YES[] = "yes"; /* Enable on string */
74 static const char DC_STR_NO[] = "no"; /* Enable off string */
75 static const char DC_STR_SWAP[] = "swap"; /* Default dump device */
76 static const char DC_STR_NONE[] = "none";
77
78 /* The pages included in the dump */
79 static const char DC_STR_KERNEL[] = "kernel"; /* Kernel only */
80 static const char DC_STR_CURPROC[] = "curproc"; /* Kernel + current process */
81 static const char DC_STR_ALL[] = "all"; /* All pages */
82
83 /*
84 * Permissions and ownership for the configuration file:
85 */
86 #define DC_OWNER 0 /* Uid 0 (root) */
87 #define DC_GROUP 1 /* Gid 1 (other) */
88 #define DC_PERM (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) /* Mode 0644 */
89
90 static void
dconf_init(dumpconf_t * dcp,int dcmode)91 dconf_init(dumpconf_t *dcp, int dcmode)
92 {
93 struct utsname ut;
94
95 /*
96 * Default device for dumps is 'swap' (appropriate swap device),
97 * and default savecore directory is /var/crash/`uname -n`,
98 * which is compatible with pre-dumpadm behavior.
99 */
100 (void) strcpy(dcp->dc_device, DC_STR_SWAP);
101 (void) strcpy(dcp->dc_savdir, "/var/crash");
102
103 if (uname(&ut) != -1) {
104 (void) strcat(dcp->dc_savdir, "/");
105 (void) strcat(dcp->dc_savdir, ut.nodename);
106 }
107
108 /*
109 * Default is contents kernel, savecore enabled on reboot,
110 * savecore saves compressed core files.
111 */
112 dcp->dc_cflags = DUMP_KERNEL;
113 dcp->dc_enable = DC_ON;
114 dcp->dc_csave = DC_COMPRESSED;
115
116 dcp->dc_mode = dcmode;
117 dcp->dc_conf_fp = NULL;
118 dcp->dc_conf_fd = -1;
119 dcp->dc_dump_fd = -1;
120 dcp->dc_readonly = B_FALSE;
121 }
122
123 int
dconf_open(dumpconf_t * dcp,const char * dpath,const char * fpath,int dcmode)124 dconf_open(dumpconf_t *dcp, const char *dpath, const char *fpath, int dcmode)
125 {
126 char buf[BUFSIZ];
127 int line;
128 const char *fpmode = "r+";
129
130 dconf_init(dcp, dcmode);
131
132 if ((dcp->dc_dump_fd = open(dpath, O_RDWR)) == -1) {
133 warn(gettext("failed to open %s"), dpath);
134 return (-1);
135 }
136
137 if ((dcp->dc_conf_fd = open(fpath, O_RDWR | O_CREAT, DC_PERM)) == -1) {
138 /*
139 * Attempt to open the file read-only.
140 */
141 if ((dcp->dc_conf_fd = open(fpath, O_RDONLY)) == -1) {
142 warn(gettext("failed to open %s"), fpath);
143 return (-1);
144 }
145
146 dcp->dc_readonly = B_TRUE;
147 fpmode = "r";
148 }
149
150 if ((dcp->dc_conf_fp = fdopen(dcp->dc_conf_fd, fpmode)) == NULL) {
151 warn(gettext("failed to open stream for %s"), fpath);
152 return (-1);
153 }
154
155 /*
156 * If we're in override mode, the current kernel settings override the
157 * default settings and anything invalid in the configuration file.
158 */
159 if (dcmode == DC_OVERRIDE)
160 (void) dconf_getdev(dcp);
161
162 for (line = 1; fgets(buf, BUFSIZ, dcp->dc_conf_fp) != NULL; line++) {
163
164 char name[BUFSIZ], value[BUFSIZ];
165 const dc_token_t *tokp;
166 int len;
167
168 if (buf[0] == '#' || buf[0] == '\n')
169 continue;
170
171 /*
172 * Look for "name=value", with optional whitespace on either
173 * side, terminated by a newline, and consuming the whole line.
174 */
175 /* LINTED - unbounded string specifier */
176 if (sscanf(buf, " %[^=]=%s \n%n", name, value, &len) == 2 &&
177 name[0] != '\0' && value[0] != '\0' && len == strlen(buf)) {
178 /*
179 * Locate a matching token in the tokens[] table,
180 * and invoke its parsing function.
181 */
182 for (tokp = tokens; tokp->tok_name != NULL; tokp++) {
183 if (strcmp(name, tokp->tok_name) == 0) {
184 if (tokp->tok_parse(dcp, value) == -1) {
185 warn(gettext("\"%s\", line %d: "
186 "warning: invalid %s\n"),
187 fpath, line, name);
188 }
189 break;
190 }
191 }
192
193 /*
194 * If we hit the end of the tokens[] table,
195 * no matching token was found.
196 */
197 if (tokp->tok_name == NULL) {
198 warn(gettext("\"%s\", line %d: warning: "
199 "invalid token: %s\n"), fpath, line, name);
200 }
201
202 } else {
203 warn(gettext("\"%s\", line %d: syntax error\n"),
204 fpath, line);
205 }
206 }
207
208 /*
209 * If we're not in override mode, the current kernel settings
210 * override the settings read from the configuration file.
211 */
212 if (dcmode == DC_CURRENT)
213 return (dconf_getdev(dcp));
214
215 return (0);
216 }
217
218 int
dconf_getdev(dumpconf_t * dcp)219 dconf_getdev(dumpconf_t *dcp)
220 {
221 int status = 0;
222
223 if ((dcp->dc_cflags = ioctl(dcp->dc_dump_fd, DIOCGETCONF, 0)) == -1) {
224 warn(gettext("failed to get kernel dump settings"));
225 status = -1;
226 }
227
228 if (ioctl(dcp->dc_dump_fd, DIOCGETDEV, dcp->dc_device) == -1) {
229 if (errno != ENODEV) {
230 warn(gettext("failed to get dump device"));
231 status = -1;
232 } else
233 dcp->dc_device[0] = '\0';
234 }
235
236 return (status);
237 }
238
239 int
dconf_close(dumpconf_t * dcp)240 dconf_close(dumpconf_t *dcp)
241 {
242 if (fclose(dcp->dc_conf_fp) == 0) {
243 (void) close(dcp->dc_dump_fd);
244 return (0);
245 }
246 return (-1);
247 }
248
249 int
dconf_write(dumpconf_t * dcp)250 dconf_write(dumpconf_t *dcp)
251 {
252 const dc_token_t *tokp;
253
254 if (fseeko(dcp->dc_conf_fp, (off_t)0, SEEK_SET) == -1) {
255 warn(gettext("failed to seek config file"));
256 return (-1);
257 }
258
259 if (ftruncate(dcp->dc_conf_fd, (off_t)0) == -1) {
260 warn(gettext("failed to truncate config file"));
261 return (-1);
262 }
263
264 (void) fputs("#\n# dumpadm.conf\n#\n"
265 "# Configuration parameters for system crash dump.\n"
266 "# Do NOT edit this file by hand -- use dumpadm(8) instead.\n"
267 "#\n", dcp->dc_conf_fp);
268
269 for (tokp = tokens; tokp->tok_name != NULL; tokp++) {
270 if (fprintf(dcp->dc_conf_fp, "%s=", tokp->tok_name) == -1 ||
271 tokp->tok_print(dcp, dcp->dc_conf_fp) == -1) {
272 warn(gettext("failed to write token"));
273 return (-1);
274 }
275 }
276
277 if (fflush(dcp->dc_conf_fp) != 0)
278 warn(gettext("warning: failed to flush config file"));
279
280 if (fsync(dcp->dc_conf_fd) == -1)
281 warn(gettext("warning: failed to sync config file to disk"));
282
283 if (fchmod(dcp->dc_conf_fd, DC_PERM) == -1)
284 warn(gettext("warning: failed to reset mode on config file"));
285
286 if (fchown(dcp->dc_conf_fd, DC_OWNER, DC_GROUP) == -1)
287 warn(gettext("warning: failed to reset owner on config file"));
288
289 return (0);
290 }
291
292 static int
open_stat64(const char * path,struct stat64 * stp)293 open_stat64(const char *path, struct stat64 *stp)
294 {
295 int fd = open64(path, O_RDONLY);
296
297 if (fd >= 0) {
298 int status = fstat64(fd, stp);
299 (void) close(fd);
300 return (status);
301 }
302
303 return (-1);
304 }
305
306 static int
dconf_swap_compare(const swapent_t * s1,const swapent_t * s2)307 dconf_swap_compare(const swapent_t *s1, const swapent_t *s2)
308 {
309 struct stat64 st1, st2;
310
311 int prefer_s1 = -1; /* Return value to move s1 left (s1 < s2) */
312 int prefer_s2 = 1; /* Return value to move s2 left (s1 > s2) */
313
314 /*
315 * First try: open and fstat each swap entry. If either system
316 * call fails, arbitrarily prefer the other entry.
317 */
318 if (open_stat64(s1->ste_path, &st1) == -1)
319 return (prefer_s2);
320
321 if (open_stat64(s2->ste_path, &st2) == -1)
322 return (prefer_s1);
323
324 /*
325 * Second try: if both entries are block devices, or if
326 * neither is a block device, prefer the larger.
327 */
328 if (S_ISBLK(st1.st_mode) == S_ISBLK(st2.st_mode)) {
329 if (st2.st_size > st1.st_size)
330 return (prefer_s2);
331 return (prefer_s1);
332 }
333
334 /*
335 * Third try: prefer the entry that is a block device.
336 */
337 if (S_ISBLK(st2.st_mode))
338 return (prefer_s2);
339 return (prefer_s1);
340 }
341
342 static int
dconf_dev_ioctl(dumpconf_t * dcp,int cmd)343 dconf_dev_ioctl(dumpconf_t *dcp, int cmd)
344 {
345 if (ioctl(dcp->dc_dump_fd, cmd, dcp->dc_device) == 0)
346 return (0);
347
348 switch (errno) {
349 case ENOTSUP:
350 warn(gettext("dumps not supported on %s\n"), dcp->dc_device);
351 break;
352 case EBUSY:
353 warn(gettext("device %s is already in use\n"), dcp->dc_device);
354 break;
355 case EBADR:
356 /* ZFS pool is too fragmented to support a dump device */
357 warn(gettext("device %s is too fragmented to be used as "
358 "a dump device\n"), dcp->dc_device);
359 break;
360 default:
361 /*
362 * NOTE: The stmsboot(8) command's boot-up script parses this
363 * error to get the dump device name. If you change the format
364 * of this message, make sure that stmsboot(8) is in sync.
365 */
366 warn(gettext("cannot use %s as dump device"), dcp->dc_device);
367 }
368 return (-1);
369 }
370
371 int
dconf_update(dumpconf_t * dcp,int checkinuse)372 dconf_update(dumpconf_t *dcp, int checkinuse)
373 {
374 int oconf;
375 int error;
376 char *msg;
377
378 error = 0;
379
380 if (checkinuse && (dm_inuse(dcp->dc_device, &msg, DM_WHO_DUMP,
381 &error) || error)) {
382 if (error != 0) {
383 warn(gettext("failed to determine if %s is"
384 " in use"), dcp->dc_device);
385 } else {
386 warn(msg);
387 free(msg);
388 return (-1);
389 }
390 }
391
392 /*
393 * Save the existing dump configuration in case something goes wrong.
394 */
395 if ((oconf = ioctl(dcp->dc_dump_fd, DIOCGETCONF, 0)) == -1) {
396 warn(gettext("failed to get kernel dump configuration"));
397 return (-1);
398 }
399
400 oconf &= DUMP_CONTENT;
401 dcp->dc_cflags &= DUMP_CONTENT;
402
403 if (ioctl(dcp->dc_dump_fd, DIOCSETCONF, dcp->dc_cflags) == -1) {
404 warn(gettext("failed to update kernel dump configuration"));
405 return (-1);
406 }
407
408 if (strcmp(dcp->dc_device, DC_STR_SWAP) == 0) {
409 swaptbl_t *swt;
410 int i;
411
412 if ((swt = swap_list()) == NULL)
413 goto err;
414
415 if (swt->swt_n == 0) {
416 warn(gettext("no swap devices are available\n"));
417 free(swt);
418 goto err;
419 }
420
421 qsort(&swt->swt_ent[0], swt->swt_n, sizeof (swapent_t),
422 (int (*)(const void *, const void *))dconf_swap_compare);
423
424 /*
425 * Iterate through the prioritized list of swap entries,
426 * trying to configure one as the dump device.
427 */
428 for (i = 0; i < swt->swt_n; i++) {
429 if (ioctl(dcp->dc_dump_fd, DIOCSETDEV,
430 swt->swt_ent[i].ste_path) == 0) {
431 (void) strcpy(dcp->dc_device,
432 swt->swt_ent[i].ste_path);
433 break;
434 }
435 }
436
437 if (i == swt->swt_n) {
438 warn(gettext("no swap devices could be configured "
439 "as the dump device\n"));
440 free(swt);
441 goto err;
442 }
443 free(swt);
444
445 } else if (strcmp(dcp->dc_device, DC_STR_NONE) == 0) {
446 if (ioctl(dcp->dc_dump_fd, DIOCRMDEV, NULL) == -1) {
447 warn(gettext("failed to remove dump device"));
448 return (-1);
449 }
450 } else if (dcp->dc_device[0] != '\0') {
451 /*
452 * If we're not in forcible update mode, then fail the change
453 * if the selected device cannot be used as the dump device,
454 * or if it is not big enough to hold the dump.
455 */
456 if (dcp->dc_mode == DC_CURRENT) {
457 struct stat64 st;
458 uint64_t d;
459
460 if (dconf_dev_ioctl(dcp, DIOCTRYDEV) == -1)
461 goto err;
462
463 if (open_stat64(dcp->dc_device, &st) == -1) {
464 warn(gettext("failed to access %s"),
465 dcp->dc_device);
466 goto err;
467 }
468
469 if ((error = zvol_check_dump_config(
470 dcp->dc_device)) > 0)
471 goto err;
472 if (ioctl(dcp->dc_dump_fd, DIOCGETDUMPSIZE, &d) == -1) {
473 warn(gettext("failed to get kernel dump size"));
474 goto err;
475 }
476
477 if (st.st_size < d) {
478 warn(gettext("dump device %s is too small to "
479 "hold a system dump\ndump size %llu "
480 "bytes, device size %lld bytes\n"),
481 dcp->dc_device, d, st.st_size);
482 goto err;
483 }
484 }
485
486 if (dconf_dev_ioctl(dcp, DIOCSETDEV) == -1)
487 goto err;
488 }
489
490 /*
491 * Now that we've updated the dump device, we need to issue another
492 * ioctl to re-read the config flags to determine whether we
493 * obtained DUMP_EXCL access on our dump device.
494 */
495 if ((dcp->dc_cflags = ioctl(dcp->dc_dump_fd, DIOCGETCONF, 0)) == -1) {
496 warn(gettext("failed to re-read kernel dump configuration"));
497 return (-1);
498 }
499
500 return (0);
501
502 err:
503 (void) ioctl(dcp->dc_dump_fd, DIOCSETCONF, oconf);
504 return (-1);
505 }
506
507 int
dconf_write_uuid(dumpconf_t * dcp)508 dconf_write_uuid(dumpconf_t *dcp)
509 {
510 char uuidstr[36 + 1];
511 uuid_t uu;
512 int err;
513
514 uuid_generate(uu);
515 uuid_unparse(uu, uuidstr);
516
517 err = ioctl(dcp->dc_dump_fd, DIOCSETUUID, uuidstr);
518
519 if (err)
520 warn(gettext("kernel image uuid write failed"));
521
522 return (err == 0);
523 }
524
525 int
dconf_get_dumpsize(dumpconf_t * dcp)526 dconf_get_dumpsize(dumpconf_t *dcp)
527 {
528 char buf[32];
529 uint64_t d;
530
531 if (ioctl(dcp->dc_dump_fd, DIOCGETDUMPSIZE, &d) == -1) {
532 warn(gettext("failed to get kernel dump size"));
533 return (-1);
534 }
535
536 zfs_nicenum(d, buf, sizeof (buf));
537
538 (void) printf(gettext("Estimated dump size: %s\n"), buf);
539 return (0);
540 }
541
542 void
dconf_print(dumpconf_t * dcp,FILE * fp)543 dconf_print(dumpconf_t *dcp, FILE *fp)
544 {
545 u_longlong_t min;
546 char *content;
547
548 if (dcp->dc_cflags & DUMP_ALL)
549 content = gettext("all");
550 else if (dcp->dc_cflags & DUMP_CURPROC)
551 content = gettext("kernel and current process");
552 else
553 content = gettext("kernel");
554
555 (void) fprintf(fp, gettext(" Dump content: %s pages\n"), content);
556
557 if (dcp->dc_device[0] != '\0') {
558 (void) fprintf(fp, gettext(" Dump device: %s (%s)\n"),
559 dcp->dc_device, (dcp->dc_cflags & DUMP_EXCL) ?
560 gettext("dedicated") : gettext("swap"));
561 } else {
562 (void) fprintf(fp, gettext(" Dump device: none "
563 "(dumps disabled)\n"));
564 }
565
566 (void) fprintf(fp, gettext("Savecore directory: %s"), dcp->dc_savdir);
567
568 if (minfree_read(dcp->dc_savdir, &min) == 0) {
569 if (min < 1024 || (min % 1024) != 0)
570 (void) fprintf(fp, gettext(" (minfree = %lluKB)"), min);
571 else
572 (void) fprintf(fp, gettext(" (minfree = %lluMB)"),
573 min / 1024);
574 }
575
576 (void) fprintf(fp, gettext("\n"));
577
578 (void) fprintf(fp, gettext(" Savecore enabled: %s\n"),
579 (dcp->dc_enable == DC_OFF) ? gettext("no") : gettext("yes"));
580 (void) fprintf(fp, gettext(" Save compressed: %s\n"),
581 (dcp->dc_csave == DC_UNCOMPRESSED) ? gettext("off") :
582 gettext("on"));
583 }
584
585 int
dconf_str2device(dumpconf_t * dcp,char * buf)586 dconf_str2device(dumpconf_t *dcp, char *buf)
587 {
588 if (strcasecmp(buf, DC_STR_SWAP) == 0) {
589 (void) strcpy(dcp->dc_device, DC_STR_SWAP);
590 return (0);
591 }
592
593 if (strcasecmp(buf, DC_STR_NONE) == 0) {
594 (void) strcpy(dcp->dc_device, DC_STR_NONE);
595 return (0);
596 }
597
598 if (valid_abspath(buf)) {
599 (void) strcpy(dcp->dc_device, buf);
600 return (0);
601 }
602
603 return (-1);
604 }
605
606 int
dconf_str2savdir(dumpconf_t * dcp,char * buf)607 dconf_str2savdir(dumpconf_t *dcp, char *buf)
608 {
609 if (valid_abspath(buf)) {
610 (void) strcpy(dcp->dc_savdir, buf);
611 return (0);
612 }
613
614 return (-1);
615 }
616
617 int
dconf_str2content(dumpconf_t * dcp,char * buf)618 dconf_str2content(dumpconf_t *dcp, char *buf)
619 {
620 if (strcasecmp(buf, DC_STR_KERNEL) == 0) {
621 dcp->dc_cflags = (dcp->dc_cflags & ~DUMP_CONTENT) | DUMP_KERNEL;
622 return (0);
623 }
624
625 if (strcasecmp(buf, DC_STR_CURPROC) == 0) {
626 dcp->dc_cflags = (dcp->dc_cflags & ~DUMP_CONTENT) |
627 DUMP_CURPROC;
628 return (0);
629 }
630
631 if (strcasecmp(buf, DC_STR_ALL) == 0) {
632 dcp->dc_cflags = (dcp->dc_cflags & ~DUMP_CONTENT) | DUMP_ALL;
633 return (0);
634 }
635
636 warn(gettext("invalid dump content type -- %s\n"), buf);
637 return (-1);
638 }
639
640 int
dconf_str2enable(dumpconf_t * dcp,char * buf)641 dconf_str2enable(dumpconf_t *dcp, char *buf)
642 {
643 if (strcasecmp(buf, DC_STR_YES) == 0) {
644 dcp->dc_enable = DC_ON;
645 return (0);
646 }
647
648 if (strcasecmp(buf, DC_STR_NO) == 0) {
649 dcp->dc_enable = DC_OFF;
650 return (0);
651 }
652
653 warn(gettext("invalid enable value -- %s\n"), buf);
654 return (-1);
655 }
656
657 int
dconf_str2csave(dumpconf_t * dcp,char * buf)658 dconf_str2csave(dumpconf_t *dcp, char *buf)
659 {
660 if (strcasecmp(buf, DC_STR_ON) == 0) {
661 dcp->dc_csave = DC_COMPRESSED;
662 return (0);
663 }
664
665 if (strcasecmp(buf, DC_STR_OFF) == 0) {
666 dcp->dc_csave = DC_UNCOMPRESSED;
667 return (0);
668 }
669
670 warn(gettext("invalid save compressed value -- %s\n"), buf);
671 return (-1);
672 }
673
674 static int
print_content(const dumpconf_t * dcp,FILE * fp)675 print_content(const dumpconf_t *dcp, FILE *fp)
676 {
677 const char *content;
678
679 if (dcp->dc_cflags & DUMP_ALL)
680 content = DC_STR_ALL;
681 else if (dcp->dc_cflags & DUMP_CURPROC)
682 content = DC_STR_CURPROC;
683 else
684 content = DC_STR_KERNEL;
685
686 return (fprintf(fp, "%s\n", content));
687 }
688
689 static int
print_device(const dumpconf_t * dcp,FILE * fp)690 print_device(const dumpconf_t *dcp, FILE *fp)
691 {
692 return (fprintf(fp, "%s\n", (dcp->dc_device[0] != '\0') ?
693 dcp->dc_device : DC_STR_SWAP));
694 }
695
696 static int
print_enable(const dumpconf_t * dcp,FILE * fp)697 print_enable(const dumpconf_t *dcp, FILE *fp)
698 {
699 return (fprintf(fp, "%s\n", (dcp->dc_enable == DC_OFF) ?
700 DC_STR_NO : DC_STR_YES));
701 }
702
703 static int
print_csave(const dumpconf_t * dcp,FILE * fp)704 print_csave(const dumpconf_t *dcp, FILE *fp)
705 {
706 return (fprintf(fp, "%s\n", (dcp->dc_csave == DC_COMPRESSED) ?
707 DC_STR_ON : DC_STR_OFF));
708 }
709
710 static int
print_savdir(const dumpconf_t * dcp,FILE * fp)711 print_savdir(const dumpconf_t *dcp, FILE *fp)
712 {
713 return (fprintf(fp, "%s\n", dcp->dc_savdir));
714 }
715