2 * Copyright (C) 2004-2009 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1999-2003 Internet Software Consortium.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
18 /* $Id: masterdump.c,v 1.94.50.2 2009/01/18 23:47:40 tbox Exp $ */
26 #include <isc/event.h>
28 #include <isc/magic.h>
30 #include <isc/print.h>
31 #include <isc/stdio.h>
32 #include <isc/string.h>
38 #include <dns/dbiterator.h>
39 #include <dns/events.h>
40 #include <dns/fixedname.h>
43 #include <dns/master.h>
44 #include <dns/masterdump.h>
45 #include <dns/rdata.h>
46 #include <dns/rdataclass.h>
47 #include <dns/rdataset.h>
48 #include <dns/rdatasetiter.h>
49 #include <dns/rdatatype.h>
50 #include <dns/result.h>
54 #define DNS_DCTX_MAGIC ISC_MAGIC('D', 'c', 't', 'x')
55 #define DNS_DCTX_VALID(d) ISC_MAGIC_VALID(d, DNS_DCTX_MAGIC)
57 #define RETERR(x) do { \
58 isc_result_t _r = (x); \
59 if (_r != ISC_R_SUCCESS) \
63 struct dns_master_style {
64 unsigned int flags; /* DNS_STYLEFLAG_* */
65 unsigned int ttl_column;
66 unsigned int class_column;
67 unsigned int type_column;
68 unsigned int rdata_column;
69 unsigned int line_length;
70 unsigned int tab_width;
74 * The maximum length of the newline+indentation that is output
75 * when inserting a line break in an RR. This effectively puts an
76 * upper limits on the value of "rdata_column", because if it is
77 * very large, the tabs and spaces needed to reach it will not fit.
79 #define DNS_TOTEXT_LINEBREAK_MAXLEN 100
82 * Context structure for a masterfile dump in progress.
84 typedef struct dns_totext_ctx {
85 dns_master_style_t style;
86 isc_boolean_t class_printed;
88 char linebreak_buf[DNS_TOTEXT_LINEBREAK_MAXLEN];
90 dns_name_t * neworigin;
91 dns_fixedname_t origin_fixname;
92 isc_uint32_t current_ttl;
93 isc_boolean_t current_ttl_valid;
96 LIBDNS_EXTERNAL_DATA const dns_master_style_t
97 dns_master_style_default = {
98 DNS_STYLEFLAG_OMIT_OWNER |
99 DNS_STYLEFLAG_OMIT_CLASS |
100 DNS_STYLEFLAG_REL_OWNER |
101 DNS_STYLEFLAG_REL_DATA |
102 DNS_STYLEFLAG_OMIT_TTL |
104 DNS_STYLEFLAG_COMMENT |
105 DNS_STYLEFLAG_MULTILINE,
106 24, 24, 24, 32, 80, 8
109 LIBDNS_EXTERNAL_DATA const dns_master_style_t
110 dns_master_style_full = {
111 DNS_STYLEFLAG_COMMENT |
112 DNS_STYLEFLAG_RESIGN,
113 46, 46, 46, 64, 120, 8
116 LIBDNS_EXTERNAL_DATA const dns_master_style_t
117 dns_master_style_explicitttl = {
118 DNS_STYLEFLAG_OMIT_OWNER |
119 DNS_STYLEFLAG_OMIT_CLASS |
120 DNS_STYLEFLAG_REL_OWNER |
121 DNS_STYLEFLAG_REL_DATA |
122 DNS_STYLEFLAG_COMMENT |
123 DNS_STYLEFLAG_MULTILINE,
124 24, 32, 32, 40, 80, 8
127 LIBDNS_EXTERNAL_DATA const dns_master_style_t
128 dns_master_style_cache = {
129 DNS_STYLEFLAG_OMIT_OWNER |
130 DNS_STYLEFLAG_OMIT_CLASS |
131 DNS_STYLEFLAG_MULTILINE |
132 DNS_STYLEFLAG_TRUST |
133 DNS_STYLEFLAG_NCACHE,
134 24, 32, 32, 40, 80, 8
137 LIBDNS_EXTERNAL_DATA const dns_master_style_t
138 dns_master_style_simple = {
140 24, 32, 32, 40, 80, 8
144 * A style suitable for dns_rdataset_totext().
146 LIBDNS_EXTERNAL_DATA const dns_master_style_t
147 dns_master_style_debug = {
148 DNS_STYLEFLAG_REL_OWNER,
149 24, 32, 40, 48, 80, 8
154 static char spaces[N_SPACES+1] = " ";
157 static char tabs[N_TABS+1] = "\t\t\t\t\t\t\t\t\t\t";
163 unsigned int references;
164 isc_boolean_t canceled;
166 isc_boolean_t do_date;
170 dns_dbversion_t *version;
171 dns_dbiterator_t *dbiter;
172 dns_totext_ctx_t tctx;
174 dns_dumpdonefunc_t done;
177 /* dns_master_dumpinc() */
180 dns_masterformat_t format;
181 isc_result_t (*dumpsets)(isc_mem_t *mctx, dns_name_t *name,
182 dns_rdatasetiter_t *rdsiter,
183 dns_totext_ctx_t *ctx,
184 isc_buffer_t *buffer, FILE *f);
187 #define NXDOMAIN(x) (((x)->attributes & DNS_RDATASETATTR_NXDOMAIN) != 0)
190 * Output tabs and spaces to go from column '*current' to
191 * column 'to', and update '*current' to reflect the new
195 indent(unsigned int *current, unsigned int to, int tabwidth,
196 isc_buffer_t *target)
201 int ntabs, nspaces, t;
208 ntabs = to / tabwidth - from / tabwidth;
213 isc_buffer_availableregion(target, &r);
214 if (r.length < (unsigned) ntabs)
215 return (ISC_R_NOSPACE);
227 isc_buffer_add(target, ntabs);
228 from = (to / tabwidth) * tabwidth;
232 INSIST(nspaces >= 0);
234 isc_buffer_availableregion(target, &r);
235 if (r.length < (unsigned) nspaces)
236 return (ISC_R_NOSPACE);
244 memcpy(p, spaces, n);
248 isc_buffer_add(target, nspaces);
251 return (ISC_R_SUCCESS);
255 totext_ctx_init(const dns_master_style_t *style, dns_totext_ctx_t *ctx) {
258 REQUIRE(style->tab_width != 0);
261 ctx->class_printed = ISC_FALSE;
263 dns_fixedname_init(&ctx->origin_fixname);
266 * Set up the line break string if needed.
268 if ((ctx->style.flags & DNS_STYLEFLAG_MULTILINE) != 0) {
271 unsigned int col = 0;
273 isc_buffer_init(&buf, ctx->linebreak_buf,
274 sizeof(ctx->linebreak_buf));
276 isc_buffer_availableregion(&buf, &r);
278 return (DNS_R_TEXTTOOLONG);
280 isc_buffer_add(&buf, 1);
282 result = indent(&col, ctx->style.rdata_column,
283 ctx->style.tab_width, &buf);
285 * Do not return ISC_R_NOSPACE if the line break string
286 * buffer is too small, because that would just make
287 * dump_rdataset() retry indefinitely with ever
288 * bigger target buffers. That's a different buffer,
289 * so it won't help. Use DNS_R_TEXTTOOLONG as a substitute.
291 if (result == ISC_R_NOSPACE)
292 return (DNS_R_TEXTTOOLONG);
293 if (result != ISC_R_SUCCESS)
296 isc_buffer_availableregion(&buf, &r);
298 return (DNS_R_TEXTTOOLONG);
300 isc_buffer_add(&buf, 1);
301 ctx->linebreak = ctx->linebreak_buf;
303 ctx->linebreak = NULL;
307 ctx->neworigin = NULL;
308 ctx->current_ttl = 0;
309 ctx->current_ttl_valid = ISC_FALSE;
311 return (ISC_R_SUCCESS);
314 #define INDENT_TO(col) \
316 if ((result = indent(&column, ctx->style.col, \
317 ctx->style.tab_width, target)) \
324 str_totext(const char *source, isc_buffer_t *target) {
328 isc_buffer_availableregion(target, ®ion);
331 if (l > region.length)
332 return (ISC_R_NOSPACE);
334 memcpy(region.base, source, l);
335 isc_buffer_add(target, l);
336 return (ISC_R_SUCCESS);
340 * Convert 'rdataset' to master file text format according to 'ctx',
341 * storing the result in 'target'. If 'owner_name' is NULL, it
342 * is omitted; otherwise 'owner_name' must be valid and have at least
347 rdataset_totext(dns_rdataset_t *rdataset,
348 dns_name_t *owner_name,
349 dns_totext_ctx_t *ctx,
350 isc_boolean_t omit_final_dot,
351 isc_buffer_t *target)
355 isc_boolean_t first = ISC_TRUE;
356 isc_uint32_t current_ttl;
357 isc_boolean_t current_ttl_valid;
358 dns_rdatatype_t type;
360 REQUIRE(DNS_RDATASET_VALID(rdataset));
362 rdataset->attributes |= DNS_RDATASETATTR_LOADORDER;
363 result = dns_rdataset_first(rdataset);
364 REQUIRE(result == ISC_R_SUCCESS);
366 current_ttl = ctx->current_ttl;
367 current_ttl_valid = ctx->current_ttl_valid;
375 if (owner_name != NULL &&
376 ! ((ctx->style.flags & DNS_STYLEFLAG_OMIT_OWNER) != 0 &&
379 unsigned int name_start = target->used;
380 RETERR(dns_name_totext(owner_name,
383 column += target->used - name_start;
389 if ((ctx->style.flags & DNS_STYLEFLAG_NO_TTL) == 0 &&
390 !((ctx->style.flags & DNS_STYLEFLAG_OMIT_TTL) != 0 &&
392 rdataset->ttl == current_ttl))
398 INDENT_TO(ttl_column);
399 length = snprintf(ttlbuf, sizeof(ttlbuf), "%u",
401 INSIST(length <= sizeof(ttlbuf));
402 isc_buffer_availableregion(target, &r);
403 if (r.length < length)
404 return (ISC_R_NOSPACE);
405 memcpy(r.base, ttlbuf, length);
406 isc_buffer_add(target, length);
410 * If the $TTL directive is not in use, the TTL we
411 * just printed becomes the default for subsequent RRs.
413 if ((ctx->style.flags & DNS_STYLEFLAG_TTL) == 0) {
414 current_ttl = rdataset->ttl;
415 current_ttl_valid = ISC_TRUE;
422 if ((ctx->style.flags & DNS_STYLEFLAG_NO_CLASS) == 0 &&
423 ((ctx->style.flags & DNS_STYLEFLAG_OMIT_CLASS) == 0 ||
424 ctx->class_printed == ISC_FALSE))
426 unsigned int class_start;
427 INDENT_TO(class_column);
428 class_start = target->used;
429 result = dns_rdataclass_totext(rdataset->rdclass,
431 if (result != ISC_R_SUCCESS)
433 column += (target->used - class_start);
440 if (rdataset->type == 0) {
441 type = rdataset->covers;
443 type = rdataset->type;
447 unsigned int type_start;
448 INDENT_TO(type_column);
449 type_start = target->used;
450 if (rdataset->type == 0)
451 RETERR(str_totext("\\-", target));
452 result = dns_rdatatype_totext(type, target);
453 if (result != ISC_R_SUCCESS)
455 column += (target->used - type_start);
461 INDENT_TO(rdata_column);
462 if (rdataset->type == 0) {
463 if (NXDOMAIN(rdataset))
464 RETERR(str_totext(";-$NXDOMAIN\n", target));
466 RETERR(str_totext(";-$NXRRSET\n", target));
468 dns_rdata_t rdata = DNS_RDATA_INIT;
471 dns_rdataset_current(rdataset, &rdata);
473 RETERR(dns_rdata_tofmttext(&rdata,
476 ctx->style.line_length -
477 ctx->style.rdata_column,
481 isc_buffer_availableregion(target, &r);
483 return (ISC_R_NOSPACE);
485 isc_buffer_add(target, 1);
489 result = dns_rdataset_next(rdataset);
490 } while (result == ISC_R_SUCCESS);
492 if (result != ISC_R_NOMORE)
496 * Update the ctx state to reflect what we just printed.
497 * This is done last, only when we are sure we will return
498 * success, because this function may be called multiple
499 * times with increasing buffer sizes until it succeeds,
500 * and failed attempts must not update the state prematurely.
502 ctx->class_printed = ISC_TRUE;
503 ctx->current_ttl= current_ttl;
504 ctx->current_ttl_valid = current_ttl_valid;
506 return (ISC_R_SUCCESS);
510 * Print the name, type, and class of an empty rdataset,
511 * such as those used to represent the question section
515 question_totext(dns_rdataset_t *rdataset,
516 dns_name_t *owner_name,
517 dns_totext_ctx_t *ctx,
518 isc_boolean_t omit_final_dot,
519 isc_buffer_t *target)
525 REQUIRE(DNS_RDATASET_VALID(rdataset));
526 result = dns_rdataset_first(rdataset);
527 REQUIRE(result == ISC_R_NOMORE);
533 unsigned int name_start = target->used;
534 RETERR(dns_name_totext(owner_name,
537 column += target->used - name_start;
542 unsigned int class_start;
543 INDENT_TO(class_column);
544 class_start = target->used;
545 result = dns_rdataclass_totext(rdataset->rdclass, target);
546 if (result != ISC_R_SUCCESS)
548 column += (target->used - class_start);
553 unsigned int type_start;
554 INDENT_TO(type_column);
555 type_start = target->used;
556 result = dns_rdatatype_totext(rdataset->type, target);
557 if (result != ISC_R_SUCCESS)
559 column += (target->used - type_start);
562 isc_buffer_availableregion(target, &r);
564 return (ISC_R_NOSPACE);
566 isc_buffer_add(target, 1);
568 return (ISC_R_SUCCESS);
572 dns_rdataset_totext(dns_rdataset_t *rdataset,
573 dns_name_t *owner_name,
574 isc_boolean_t omit_final_dot,
575 isc_boolean_t question,
576 isc_buffer_t *target)
578 dns_totext_ctx_t ctx;
580 result = totext_ctx_init(&dns_master_style_debug, &ctx);
581 if (result != ISC_R_SUCCESS) {
582 UNEXPECTED_ERROR(__FILE__, __LINE__,
583 "could not set master file style");
584 return (ISC_R_UNEXPECTED);
588 * The caller might want to give us an empty owner
589 * name (e.g. if they are outputting into a master
590 * file and this rdataset has the same name as the
593 if (dns_name_countlabels(owner_name) == 0)
597 return (question_totext(rdataset, owner_name, &ctx,
598 omit_final_dot, target));
600 return (rdataset_totext(rdataset, owner_name, &ctx,
601 omit_final_dot, target));
605 dns_master_rdatasettotext(dns_name_t *owner_name,
606 dns_rdataset_t *rdataset,
607 const dns_master_style_t *style,
608 isc_buffer_t *target)
610 dns_totext_ctx_t ctx;
612 result = totext_ctx_init(style, &ctx);
613 if (result != ISC_R_SUCCESS) {
614 UNEXPECTED_ERROR(__FILE__, __LINE__,
615 "could not set master file style");
616 return (ISC_R_UNEXPECTED);
619 return (rdataset_totext(rdataset, owner_name, &ctx,
624 dns_master_questiontotext(dns_name_t *owner_name,
625 dns_rdataset_t *rdataset,
626 const dns_master_style_t *style,
627 isc_buffer_t *target)
629 dns_totext_ctx_t ctx;
631 result = totext_ctx_init(style, &ctx);
632 if (result != ISC_R_SUCCESS) {
633 UNEXPECTED_ERROR(__FILE__, __LINE__,
634 "could not set master file style");
635 return (ISC_R_UNEXPECTED);
638 return (question_totext(rdataset, owner_name, &ctx,
643 * Print an rdataset. 'buffer' is a scratch buffer, which must have been
644 * dynamically allocated by the caller. It must be large enough to
645 * hold the result from dns_ttl_totext(). If more than that is needed,
646 * the buffer will be grown automatically.
650 dump_rdataset(isc_mem_t *mctx, dns_name_t *name, dns_rdataset_t *rdataset,
651 dns_totext_ctx_t *ctx,
652 isc_buffer_t *buffer, FILE *f)
657 REQUIRE(buffer->length > 0);
660 * Output a $TTL directive if needed.
663 if ((ctx->style.flags & DNS_STYLEFLAG_TTL) != 0) {
664 if (ctx->current_ttl_valid == ISC_FALSE ||
665 ctx->current_ttl != rdataset->ttl)
667 if ((ctx->style.flags & DNS_STYLEFLAG_COMMENT) != 0)
669 isc_buffer_clear(buffer);
670 result = dns_ttl_totext(rdataset->ttl,
672 INSIST(result == ISC_R_SUCCESS);
673 isc_buffer_usedregion(buffer, &r);
674 fprintf(f, "$TTL %u\t; %.*s\n", rdataset->ttl,
675 (int) r.length, (char *) r.base);
677 fprintf(f, "$TTL %u\n", rdataset->ttl);
679 ctx->current_ttl = rdataset->ttl;
680 ctx->current_ttl_valid = ISC_TRUE;
684 isc_buffer_clear(buffer);
687 * Generate the text representation of the rdataset into
688 * the buffer. If the buffer is too small, grow it.
693 result = rdataset_totext(rdataset, name, ctx,
695 if (result != ISC_R_NOSPACE)
698 newlength = buffer->length * 2;
699 newmem = isc_mem_get(mctx, newlength);
701 return (ISC_R_NOMEMORY);
702 isc_mem_put(mctx, buffer->base, buffer->length);
703 isc_buffer_init(buffer, newmem, newlength);
705 if (result != ISC_R_SUCCESS)
709 * Write the buffer contents to the master file.
711 isc_buffer_usedregion(buffer, &r);
712 result = isc_stdio_write(r.base, 1, (size_t)r.length, f, NULL);
714 if (result != ISC_R_SUCCESS) {
715 UNEXPECTED_ERROR(__FILE__, __LINE__,
716 "master file write failed: %s",
717 isc_result_totext(result));
721 return (ISC_R_SUCCESS);
725 * Define the order in which rdatasets should be printed in zone
726 * files. We will print SOA and NS records before others, SIGs
727 * immediately following the things they sign, and order everything
728 * else by RR number. This is all just for aesthetics and
729 * compatibility with buggy software that expects the SOA to be first;
730 * the DNS specifications allow any order.
734 dump_order(const dns_rdataset_t *rds) {
737 if (rds->type == dns_rdatatype_rrsig) {
745 case dns_rdatatype_soa:
748 case dns_rdatatype_ns:
755 return (t << 1) + sig;
759 dump_order_compare(const void *a, const void *b) {
760 return (dump_order(*((const dns_rdataset_t * const *) a)) -
761 dump_order(*((const dns_rdataset_t * const *) b)));
765 * Dump all the rdatasets of a domain name to a master file. We make
766 * a "best effort" attempt to sort the RRsets in a nice order, but if
767 * there are more than MAXSORT RRsets, we punt and only sort them in
768 * groups of MAXSORT. This is not expected to ever happen in practice
769 * since much less than 64 RR types have been registered with the
770 * IANA, so far, and the output will be correct (though not
771 * aesthetically pleasing) even if it does happen.
776 static const char *trustnames[] = {
785 "local" /* aka ultimate */
789 dns_trust_totext(dns_trust_t trust) {
790 if (trust >= sizeof(trustnames)/sizeof(*trustnames))
792 return (trustnames[trust]);
796 dump_rdatasets_text(isc_mem_t *mctx, dns_name_t *name,
797 dns_rdatasetiter_t *rdsiter, dns_totext_ctx_t *ctx,
798 isc_buffer_t *buffer, FILE *f)
800 isc_result_t itresult, dumpresult;
802 dns_rdataset_t rdatasets[MAXSORT];
803 dns_rdataset_t *sorted[MAXSORT];
806 itresult = dns_rdatasetiter_first(rdsiter);
807 dumpresult = ISC_R_SUCCESS;
809 if (itresult == ISC_R_SUCCESS && ctx->neworigin != NULL) {
810 isc_buffer_clear(buffer);
811 itresult = dns_name_totext(ctx->neworigin, ISC_FALSE, buffer);
812 RUNTIME_CHECK(itresult == ISC_R_SUCCESS);
813 isc_buffer_usedregion(buffer, &r);
814 fprintf(f, "$ORIGIN %.*s\n", (int) r.length, (char *) r.base);
815 ctx->neworigin = NULL;
820 itresult == ISC_R_SUCCESS && i < MAXSORT;
821 itresult = dns_rdatasetiter_next(rdsiter), i++) {
822 dns_rdataset_init(&rdatasets[i]);
823 dns_rdatasetiter_current(rdsiter, &rdatasets[i]);
824 sorted[i] = &rdatasets[i];
827 INSIST(n <= MAXSORT);
829 qsort(sorted, n, sizeof(sorted[0]), dump_order_compare);
831 for (i = 0; i < n; i++) {
832 dns_rdataset_t *rds = sorted[i];
833 if (ctx->style.flags & DNS_STYLEFLAG_TRUST) {
834 unsigned int trust = rds->trust;
835 INSIST(trust < (sizeof(trustnames) /
836 sizeof(trustnames[0])));
837 fprintf(f, "; %s\n", trustnames[trust]);
839 if (rds->type == 0 &&
840 (ctx->style.flags & DNS_STYLEFLAG_NCACHE) == 0) {
841 /* Omit negative cache entries */
843 isc_result_t result =
844 dump_rdataset(mctx, name, rds, ctx,
846 if (result != ISC_R_SUCCESS)
848 if ((ctx->style.flags & DNS_STYLEFLAG_OMIT_OWNER) != 0)
851 if (ctx->style.flags & DNS_STYLEFLAG_RESIGN &&
852 rds->attributes & DNS_RDATASETATTR_RESIGN) {
854 char buf[sizeof("YYYYMMDDHHMMSS")];
855 memset(buf, 0, sizeof(buf));
856 isc_buffer_init(&b, buf, sizeof(buf) - 1);
857 dns_time64_totext((isc_uint64_t)rds->resign, &b);
858 fprintf(f, "; resign=%s\n", buf);
860 dns_rdataset_disassociate(rds);
863 if (dumpresult != ISC_R_SUCCESS)
867 * If we got more data than could be sorted at once,
868 * go handle the rest.
870 if (itresult == ISC_R_SUCCESS)
873 if (itresult == ISC_R_NOMORE)
874 itresult = ISC_R_SUCCESS;
880 * Dump given RRsets in the "raw" format.
883 dump_rdataset_raw(isc_mem_t *mctx, dns_name_t *name, dns_rdataset_t *rdataset,
884 isc_buffer_t *buffer, FILE *f)
887 isc_uint32_t totallen;
889 isc_region_t r, r_hdr;
891 REQUIRE(buffer->length > 0);
892 REQUIRE(DNS_RDATASET_VALID(rdataset));
896 result = dns_rdataset_first(rdataset);
897 REQUIRE(result == ISC_R_SUCCESS);
899 isc_buffer_clear(buffer);
902 * Common header and owner name (length followed by name)
903 * These fields should be in a moderate length, so we assume we
904 * can store all of them in the initial buffer.
906 isc_buffer_availableregion(buffer, &r_hdr);
907 INSIST(r_hdr.length >= sizeof(dns_masterrawrdataset_t));
908 isc_buffer_putuint32(buffer, totallen); /* XXX: leave space */
909 isc_buffer_putuint16(buffer, rdataset->rdclass); /* 16-bit class */
910 isc_buffer_putuint16(buffer, rdataset->type); /* 16-bit type */
911 isc_buffer_putuint16(buffer, rdataset->covers); /* same as type */
912 isc_buffer_putuint32(buffer, rdataset->ttl); /* 32-bit TTL */
913 isc_buffer_putuint32(buffer, dns_rdataset_count(rdataset));
914 totallen = isc_buffer_usedlength(buffer);
915 INSIST(totallen <= sizeof(dns_masterrawrdataset_t));
917 dns_name_toregion(name, &r);
918 INSIST(isc_buffer_availablelength(buffer) >=
919 (sizeof(dlen) + r.length));
920 dlen = (isc_uint16_t)r.length;
921 isc_buffer_putuint16(buffer, dlen);
922 isc_buffer_copyregion(buffer, &r);
923 totallen += sizeof(dlen) + r.length;
926 dns_rdata_t rdata = DNS_RDATA_INIT;
929 dns_rdataset_current(rdataset, &rdata);
930 dns_rdata_toregion(&rdata, &r);
931 INSIST(r.length <= 0xffffU);
932 dlen = (isc_uint16_t)r.length;
935 * Copy the rdata into the buffer. If the buffer is too small,
936 * grow it. This should be rare, so we'll simply restart the
937 * entire procedure (or should we copy the old data and
940 if (isc_buffer_availablelength(buffer) <
941 sizeof(dlen) + r.length) {
945 newlength = buffer->length * 2;
946 newmem = isc_mem_get(mctx, newlength);
948 return (ISC_R_NOMEMORY);
949 isc_mem_put(mctx, buffer->base, buffer->length);
950 isc_buffer_init(buffer, newmem, newlength);
953 isc_buffer_putuint16(buffer, dlen);
954 isc_buffer_copyregion(buffer, &r);
955 totallen += sizeof(dlen) + r.length;
957 result = dns_rdataset_next(rdataset);
958 } while (result == ISC_R_SUCCESS);
960 if (result != ISC_R_NOMORE)
964 * Fill in the total length field.
965 * XXX: this is a bit tricky. Since we have already "used" the space
966 * for the total length in the buffer, we first remember the entire
967 * buffer length in the region, "rewind", and then write the value.
969 isc_buffer_usedregion(buffer, &r);
970 isc_buffer_clear(buffer);
971 isc_buffer_putuint32(buffer, totallen);
972 INSIST(isc_buffer_usedlength(buffer) < totallen);
975 * Write the buffer contents to the raw master file.
977 result = isc_stdio_write(r.base, 1, (size_t)r.length, f, NULL);
979 if (result != ISC_R_SUCCESS) {
980 UNEXPECTED_ERROR(__FILE__, __LINE__,
981 "raw master file write failed: %s",
982 isc_result_totext(result));
990 dump_rdatasets_raw(isc_mem_t *mctx, dns_name_t *name,
991 dns_rdatasetiter_t *rdsiter, dns_totext_ctx_t *ctx,
992 isc_buffer_t *buffer, FILE *f)
995 dns_rdataset_t rdataset;
997 for (result = dns_rdatasetiter_first(rdsiter);
998 result == ISC_R_SUCCESS;
999 result = dns_rdatasetiter_next(rdsiter)) {
1001 dns_rdataset_init(&rdataset);
1002 dns_rdatasetiter_current(rdsiter, &rdataset);
1004 if (rdataset.type == 0 &&
1005 (ctx->style.flags & DNS_STYLEFLAG_NCACHE) == 0) {
1006 /* Omit negative cache entries */
1008 result = dump_rdataset_raw(mctx, name, &rdataset,
1011 dns_rdataset_disassociate(&rdataset);
1014 if (result == ISC_R_NOMORE)
1015 result = ISC_R_SUCCESS;
1021 * Initial size of text conversion buffer. The buffer is used
1022 * for several purposes: converting origin names, rdatasets,
1023 * $DATE timestamps, and comment strings for $TTL directives.
1025 * When converting rdatasets, it is dynamically resized, but
1026 * when converting origins, timestamps, etc it is not. Therefore,
1027 * the initial size must large enough to hold the longest possible
1028 * text representation of any domain name (for $ORIGIN).
1030 static const int initial_buffer_length = 1200;
1033 dumptostreaminc(dns_dumpctx_t *dctx);
1036 dumpctx_destroy(dns_dumpctx_t *dctx) {
1039 DESTROYLOCK(&dctx->lock);
1040 dns_dbiterator_destroy(&dctx->dbiter);
1041 if (dctx->version != NULL)
1042 dns_db_closeversion(dctx->db, &dctx->version, ISC_FALSE);
1043 dns_db_detach(&dctx->db);
1044 if (dctx->task != NULL)
1045 isc_task_detach(&dctx->task);
1046 if (dctx->file != NULL)
1047 isc_mem_free(dctx->mctx, dctx->file);
1048 if (dctx->tmpfile != NULL)
1049 isc_mem_free(dctx->mctx, dctx->tmpfile);
1050 isc_mem_putanddetach(&dctx->mctx, dctx, sizeof(*dctx));
1054 dns_dumpctx_attach(dns_dumpctx_t *source, dns_dumpctx_t **target) {
1056 REQUIRE(DNS_DCTX_VALID(source));
1057 REQUIRE(target != NULL && *target == NULL);
1059 LOCK(&source->lock);
1060 INSIST(source->references > 0);
1061 source->references++;
1062 INSIST(source->references != 0); /* Overflow? */
1063 UNLOCK(&source->lock);
1069 dns_dumpctx_detach(dns_dumpctx_t **dctxp) {
1070 dns_dumpctx_t *dctx;
1071 isc_boolean_t need_destroy = ISC_FALSE;
1073 REQUIRE(dctxp != NULL);
1075 REQUIRE(DNS_DCTX_VALID(dctx));
1080 INSIST(dctx->references != 0);
1082 if (dctx->references == 0)
1083 need_destroy = ISC_TRUE;
1084 UNLOCK(&dctx->lock);
1086 dumpctx_destroy(dctx);
1090 dns_dumpctx_version(dns_dumpctx_t *dctx) {
1091 REQUIRE(DNS_DCTX_VALID(dctx));
1092 return (dctx->version);
1096 dns_dumpctx_db(dns_dumpctx_t *dctx) {
1097 REQUIRE(DNS_DCTX_VALID(dctx));
1102 dns_dumpctx_cancel(dns_dumpctx_t *dctx) {
1103 REQUIRE(DNS_DCTX_VALID(dctx));
1106 dctx->canceled = ISC_TRUE;
1107 UNLOCK(&dctx->lock);
1111 closeandrename(FILE *f, isc_result_t result, const char *temp, const char *file)
1113 isc_result_t tresult;
1114 isc_boolean_t logit = ISC_TF(result == ISC_R_SUCCESS);
1116 if (result == ISC_R_SUCCESS)
1117 result = isc_stdio_sync(f);
1118 if (result != ISC_R_SUCCESS && logit) {
1119 isc_log_write(dns_lctx, ISC_LOGCATEGORY_GENERAL,
1120 DNS_LOGMODULE_MASTERDUMP, ISC_LOG_ERROR,
1121 "dumping master file: %s: fsync: %s",
1122 temp, isc_result_totext(result));
1125 tresult = isc_stdio_close(f);
1126 if (result == ISC_R_SUCCESS)
1128 if (result != ISC_R_SUCCESS && logit) {
1129 isc_log_write(dns_lctx, ISC_LOGCATEGORY_GENERAL,
1130 DNS_LOGMODULE_MASTERDUMP, ISC_LOG_ERROR,
1131 "dumping master file: %s: fclose: %s",
1132 temp, isc_result_totext(result));
1135 if (result == ISC_R_SUCCESS)
1136 result = isc_file_rename(temp, file);
1138 (void)isc_file_remove(temp);
1139 if (result != ISC_R_SUCCESS && logit) {
1140 isc_log_write(dns_lctx, ISC_LOGCATEGORY_GENERAL,
1141 DNS_LOGMODULE_MASTERDUMP, ISC_LOG_ERROR,
1142 "dumping master file: rename: %s: %s",
1143 file, isc_result_totext(result));
1149 dump_quantum(isc_task_t *task, isc_event_t *event) {
1150 isc_result_t result;
1151 isc_result_t tresult;
1152 dns_dumpctx_t *dctx;
1154 REQUIRE(event != NULL);
1155 dctx = event->ev_arg;
1156 REQUIRE(DNS_DCTX_VALID(dctx));
1158 result = ISC_R_CANCELED;
1160 result = dumptostreaminc(dctx);
1161 if (result == DNS_R_CONTINUE) {
1162 event->ev_arg = dctx;
1163 isc_task_send(task, &event);
1167 if (dctx->file != NULL) {
1168 tresult = closeandrename(dctx->f, result,
1169 dctx->tmpfile, dctx->file);
1170 if (tresult != ISC_R_SUCCESS && result == ISC_R_SUCCESS)
1173 (dctx->done)(dctx->done_arg, result);
1174 isc_event_free(&event);
1175 dns_dumpctx_detach(&dctx);
1179 task_send(dns_dumpctx_t *dctx) {
1182 event = isc_event_allocate(dctx->mctx, NULL, DNS_EVENT_DUMPQUANTUM,
1183 dump_quantum, dctx, sizeof(*event));
1185 return (ISC_R_NOMEMORY);
1186 isc_task_send(dctx->task, &event);
1187 return (ISC_R_SUCCESS);
1191 dumpctx_create(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
1192 const dns_master_style_t *style, FILE *f, dns_dumpctx_t **dctxp,
1193 dns_masterformat_t format)
1195 dns_dumpctx_t *dctx;
1196 isc_result_t result;
1197 unsigned int options;
1199 dctx = isc_mem_get(mctx, sizeof(*dctx));
1201 return (ISC_R_NOMEMORY);
1205 dctx->dbiter = NULL;
1207 dctx->version = NULL;
1209 dctx->done_arg = NULL;
1212 dctx->first = ISC_TRUE;
1213 dctx->canceled = ISC_FALSE;
1215 dctx->tmpfile = NULL;
1216 dctx->format = format;
1219 case dns_masterformat_text:
1220 dctx->dumpsets = dump_rdatasets_text;
1222 case dns_masterformat_raw:
1223 dctx->dumpsets = dump_rdatasets_raw;
1230 result = totext_ctx_init(style, &dctx->tctx);
1231 if (result != ISC_R_SUCCESS) {
1232 UNEXPECTED_ERROR(__FILE__, __LINE__,
1233 "could not set master file style");
1237 isc_stdtime_get(&dctx->now);
1238 dns_db_attach(db, &dctx->db);
1240 dctx->do_date = dns_db_iscache(dctx->db);
1242 if (dctx->format == dns_masterformat_text &&
1243 (dctx->tctx.style.flags & DNS_STYLEFLAG_REL_OWNER) != 0) {
1244 options = DNS_DB_RELATIVENAMES;
1247 result = dns_db_createiterator(dctx->db, options, &dctx->dbiter);
1248 if (result != ISC_R_SUCCESS)
1251 result = isc_mutex_init(&dctx->lock);
1252 if (result != ISC_R_SUCCESS)
1254 if (version != NULL)
1255 dns_db_attachversion(dctx->db, version, &dctx->version);
1256 else if (!dns_db_iscache(db))
1257 dns_db_currentversion(dctx->db, &dctx->version);
1258 isc_mem_attach(mctx, &dctx->mctx);
1259 dctx->references = 1;
1260 dctx->magic = DNS_DCTX_MAGIC;
1262 return (ISC_R_SUCCESS);
1265 if (dctx->dbiter != NULL)
1266 dns_dbiterator_destroy(&dctx->dbiter);
1267 if (dctx->db != NULL)
1268 dns_db_detach(&dctx->db);
1270 isc_mem_put(mctx, dctx, sizeof(*dctx));
1275 dumptostreaminc(dns_dumpctx_t *dctx) {
1276 isc_result_t result;
1277 isc_buffer_t buffer;
1281 dns_fixedname_t fixname;
1283 dns_masterrawheader_t rawheader;
1287 bufmem = isc_mem_get(dctx->mctx, initial_buffer_length);
1289 return (ISC_R_NOMEMORY);
1291 isc_buffer_init(&buffer, bufmem, initial_buffer_length);
1293 dns_fixedname_init(&fixname);
1294 name = dns_fixedname_name(&fixname);
1297 switch (dctx->format) {
1298 case dns_masterformat_text:
1300 * If the database has cache semantics, output an
1301 * RFC2540 $DATE directive so that the TTLs can be
1302 * adjusted when it is reloaded. For zones it is not
1303 * really needed, and it would make the file
1304 * incompatible with pre-RFC2540 software, so we omit
1305 * it in the zone case.
1307 if (dctx->do_date) {
1308 result = dns_time32_totext(dctx->now, &buffer);
1309 RUNTIME_CHECK(result == ISC_R_SUCCESS);
1310 isc_buffer_usedregion(&buffer, &r);
1311 fprintf(dctx->f, "$DATE %.*s\n",
1312 (int) r.length, (char *) r.base);
1315 case dns_masterformat_raw:
1316 r.base = (unsigned char *)&rawheader;
1317 r.length = sizeof(rawheader);
1318 isc_buffer_region(&buffer, &r);
1319 isc_buffer_putuint32(&buffer, dns_masterformat_raw);
1320 isc_buffer_putuint32(&buffer, DNS_RAWFORMAT_VERSION);
1321 if (sizeof(now32) != sizeof(dctx->now)) {
1323 * We assume isc_stdtime_t is a 32-bit integer,
1324 * which should be the case on most cases.
1325 * If it turns out to be uncommon, we'll need
1326 * to bump the version number and revise the
1329 isc_log_write(dns_lctx,
1330 ISC_LOGCATEGORY_GENERAL,
1331 DNS_LOGMODULE_MASTERDUMP,
1333 "dumping master file in raw "
1334 "format: stdtime is not 32bits");
1338 isc_buffer_putuint32(&buffer, now32);
1339 INSIST(isc_buffer_usedlength(&buffer) <=
1341 result = isc_stdio_write(buffer.base, 1,
1342 isc_buffer_usedlength(&buffer),
1344 if (result != ISC_R_SUCCESS)
1346 isc_buffer_clear(&buffer);
1352 result = dns_dbiterator_first(dctx->dbiter);
1353 dctx->first = ISC_FALSE;
1355 result = ISC_R_SUCCESS;
1357 nodes = dctx->nodes;
1358 isc_time_now(&start);
1359 while (result == ISC_R_SUCCESS && (dctx->nodes == 0 || nodes--)) {
1360 dns_rdatasetiter_t *rdsiter = NULL;
1361 dns_dbnode_t *node = NULL;
1363 result = dns_dbiterator_current(dctx->dbiter, &node, name);
1364 if (result != ISC_R_SUCCESS && result != DNS_R_NEWORIGIN)
1366 if (result == DNS_R_NEWORIGIN) {
1367 dns_name_t *origin =
1368 dns_fixedname_name(&dctx->tctx.origin_fixname);
1369 result = dns_dbiterator_origin(dctx->dbiter, origin);
1370 RUNTIME_CHECK(result == ISC_R_SUCCESS);
1371 if ((dctx->tctx.style.flags & DNS_STYLEFLAG_REL_DATA) != 0)
1372 dctx->tctx.origin = origin;
1373 dctx->tctx.neworigin = origin;
1375 result = dns_db_allrdatasets(dctx->db, node, dctx->version,
1376 dctx->now, &rdsiter);
1377 if (result != ISC_R_SUCCESS) {
1378 dns_db_detachnode(dctx->db, &node);
1381 result = (dctx->dumpsets)(dctx->mctx, name, rdsiter,
1382 &dctx->tctx, &buffer, dctx->f);
1383 dns_rdatasetiter_destroy(&rdsiter);
1384 if (result != ISC_R_SUCCESS) {
1385 dns_db_detachnode(dctx->db, &node);
1388 dns_db_detachnode(dctx->db, &node);
1389 result = dns_dbiterator_next(dctx->dbiter);
1393 * Work out how many nodes can be written in the time between
1394 * two requests to the nameserver. Smooth the resulting number and
1395 * use it as a estimate for the number of nodes to be written in the
1398 if (dctx->nodes != 0 && result == ISC_R_SUCCESS) {
1399 unsigned int pps = dns_pps; /* packets per second */
1400 unsigned int interval;
1407 interval = 1000000 / pps; /* interval in usecs */
1410 usecs = isc_time_microdiff(&end, &start);
1412 dctx->nodes = dctx->nodes * 2;
1413 if (dctx->nodes > 1000)
1416 nodes = dctx->nodes * interval;
1417 nodes /= (unsigned int)usecs;
1420 else if (nodes > 1000)
1423 /* Smooth and assign. */
1424 dctx->nodes = (nodes + dctx->nodes * 7) / 8;
1426 isc_log_write(dns_lctx, ISC_LOGCATEGORY_GENERAL,
1427 DNS_LOGMODULE_MASTERDUMP,
1429 "dumptostreaminc(%p) new nodes -> %d\n",
1432 result = DNS_R_CONTINUE;
1433 } else if (result == ISC_R_NOMORE)
1434 result = ISC_R_SUCCESS;
1436 RUNTIME_CHECK(dns_dbiterator_pause(dctx->dbiter) == ISC_R_SUCCESS);
1437 isc_mem_put(dctx->mctx, buffer.base, buffer.length);
1442 dns_master_dumptostreaminc(isc_mem_t *mctx, dns_db_t *db,
1443 dns_dbversion_t *version,
1444 const dns_master_style_t *style,
1445 FILE *f, isc_task_t *task,
1446 dns_dumpdonefunc_t done, void *done_arg,
1447 dns_dumpctx_t **dctxp)
1449 dns_dumpctx_t *dctx = NULL;
1450 isc_result_t result;
1452 REQUIRE(task != NULL);
1454 REQUIRE(done != NULL);
1456 result = dumpctx_create(mctx, db, version, style, f, &dctx,
1457 dns_masterformat_text);
1458 if (result != ISC_R_SUCCESS)
1460 isc_task_attach(task, &dctx->task);
1462 dctx->done_arg = done_arg;
1465 result = task_send(dctx);
1466 if (result == ISC_R_SUCCESS) {
1467 dns_dumpctx_attach(dctx, dctxp);
1468 return (DNS_R_CONTINUE);
1471 dns_dumpctx_detach(&dctx);
1476 * Dump an entire database into a master file.
1479 dns_master_dumptostream(isc_mem_t *mctx, dns_db_t *db,
1480 dns_dbversion_t *version,
1481 const dns_master_style_t *style,
1484 return (dns_master_dumptostream2(mctx, db, version, style,
1485 dns_masterformat_text, f));
1489 dns_master_dumptostream2(isc_mem_t *mctx, dns_db_t *db,
1490 dns_dbversion_t *version,
1491 const dns_master_style_t *style,
1492 dns_masterformat_t format, FILE *f)
1494 dns_dumpctx_t *dctx = NULL;
1495 isc_result_t result;
1497 result = dumpctx_create(mctx, db, version, style, f, &dctx, format);
1498 if (result != ISC_R_SUCCESS)
1501 result = dumptostreaminc(dctx);
1502 INSIST(result != DNS_R_CONTINUE);
1503 dns_dumpctx_detach(&dctx);
1508 opentmp(isc_mem_t *mctx, const char *file, char **tempp, FILE **fp) {
1510 isc_result_t result;
1511 char *tempname = NULL;
1514 tempnamelen = strlen(file) + 20;
1515 tempname = isc_mem_allocate(mctx, tempnamelen);
1516 if (tempname == NULL)
1517 return (ISC_R_NOMEMORY);
1519 result = isc_file_mktemplate(file, tempname, tempnamelen);
1520 if (result != ISC_R_SUCCESS)
1523 result = isc_file_openunique(tempname, &f);
1524 if (result != ISC_R_SUCCESS) {
1525 isc_log_write(dns_lctx, ISC_LOGCATEGORY_GENERAL,
1526 DNS_LOGMODULE_MASTERDUMP, ISC_LOG_ERROR,
1527 "dumping master file: %s: open: %s",
1528 tempname, isc_result_totext(result));
1533 return (ISC_R_SUCCESS);
1536 isc_mem_free(mctx, tempname);
1541 dns_master_dumpinc(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
1542 const dns_master_style_t *style, const char *filename,
1543 isc_task_t *task, dns_dumpdonefunc_t done, void *done_arg,
1544 dns_dumpctx_t **dctxp)
1546 return (dns_master_dumpinc2(mctx, db, version, style, filename, task,
1547 done, done_arg, dctxp,
1548 dns_masterformat_text));
1552 dns_master_dumpinc2(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
1553 const dns_master_style_t *style, const char *filename,
1554 isc_task_t *task, dns_dumpdonefunc_t done, void *done_arg,
1555 dns_dumpctx_t **dctxp, dns_masterformat_t format)
1558 isc_result_t result;
1559 char *tempname = NULL;
1561 dns_dumpctx_t *dctx = NULL;
1563 file = isc_mem_strdup(mctx, filename);
1565 return (ISC_R_NOMEMORY);
1567 result = opentmp(mctx, filename, &tempname, &f);
1568 if (result != ISC_R_SUCCESS)
1571 result = dumpctx_create(mctx, db, version, style, f, &dctx, format);
1572 if (result != ISC_R_SUCCESS) {
1573 (void)isc_stdio_close(f);
1574 (void)isc_file_remove(tempname);
1578 isc_task_attach(task, &dctx->task);
1580 dctx->done_arg = done_arg;
1584 dctx->tmpfile = tempname;
1587 result = task_send(dctx);
1588 if (result == ISC_R_SUCCESS) {
1589 dns_dumpctx_attach(dctx, dctxp);
1590 return (DNS_R_CONTINUE);
1595 dns_dumpctx_detach(&dctx);
1597 isc_mem_free(mctx, file);
1598 if (tempname != NULL)
1599 isc_mem_free(mctx, tempname);
1604 dns_master_dump(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
1605 const dns_master_style_t *style, const char *filename)
1607 return (dns_master_dump2(mctx, db, version, style, filename,
1608 dns_masterformat_text));
1612 dns_master_dump2(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
1613 const dns_master_style_t *style, const char *filename,
1614 dns_masterformat_t format)
1617 isc_result_t result;
1619 dns_dumpctx_t *dctx = NULL;
1621 result = opentmp(mctx, filename, &tempname, &f);
1622 if (result != ISC_R_SUCCESS)
1625 result = dumpctx_create(mctx, db, version, style, f, &dctx, format);
1626 if (result != ISC_R_SUCCESS)
1629 result = dumptostreaminc(dctx);
1630 INSIST(result != DNS_R_CONTINUE);
1631 dns_dumpctx_detach(&dctx);
1633 result = closeandrename(f, result, tempname, filename);
1636 isc_mem_free(mctx, tempname);
1641 * Dump a database node into a master file.
1642 * XXX: this function assumes the text format.
1645 dns_master_dumpnodetostream(isc_mem_t *mctx, dns_db_t *db,
1646 dns_dbversion_t *version,
1647 dns_dbnode_t *node, dns_name_t *name,
1648 const dns_master_style_t *style,
1651 isc_result_t result;
1652 isc_buffer_t buffer;
1655 dns_totext_ctx_t ctx;
1656 dns_rdatasetiter_t *rdsiter = NULL;
1658 result = totext_ctx_init(style, &ctx);
1659 if (result != ISC_R_SUCCESS) {
1660 UNEXPECTED_ERROR(__FILE__, __LINE__,
1661 "could not set master file style");
1662 return (ISC_R_UNEXPECTED);
1665 isc_stdtime_get(&now);
1667 bufmem = isc_mem_get(mctx, initial_buffer_length);
1669 return (ISC_R_NOMEMORY);
1671 isc_buffer_init(&buffer, bufmem, initial_buffer_length);
1673 result = dns_db_allrdatasets(db, node, version, now, &rdsiter);
1674 if (result != ISC_R_SUCCESS)
1676 result = dump_rdatasets_text(mctx, name, rdsiter, &ctx, &buffer, f);
1677 if (result != ISC_R_SUCCESS)
1679 dns_rdatasetiter_destroy(&rdsiter);
1681 result = ISC_R_SUCCESS;
1684 isc_mem_put(mctx, buffer.base, buffer.length);
1689 dns_master_dumpnode(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
1690 dns_dbnode_t *node, dns_name_t *name,
1691 const dns_master_style_t *style, const char *filename)
1694 isc_result_t result;
1696 result = isc_stdio_open(filename, "w", &f);
1697 if (result != ISC_R_SUCCESS) {
1698 isc_log_write(dns_lctx, ISC_LOGCATEGORY_GENERAL,
1699 DNS_LOGMODULE_MASTERDUMP, ISC_LOG_ERROR,
1700 "dumping node to file: %s: open: %s", filename,
1701 isc_result_totext(result));
1702 return (ISC_R_UNEXPECTED);
1705 result = dns_master_dumpnodetostream(mctx, db, version, node, name,
1708 result = isc_stdio_close(f);
1709 if (result != ISC_R_SUCCESS) {
1710 isc_log_write(dns_lctx, ISC_LOGCATEGORY_GENERAL,
1711 DNS_LOGMODULE_MASTERDUMP, ISC_LOG_ERROR,
1712 "dumping master file: %s: close: %s", filename,
1713 isc_result_totext(result));
1714 return (ISC_R_UNEXPECTED);
1721 dns_master_stylecreate(dns_master_style_t **stylep, unsigned int flags,
1722 unsigned int ttl_column, unsigned int class_column,
1723 unsigned int type_column, unsigned int rdata_column,
1724 unsigned int line_length, unsigned int tab_width,
1727 dns_master_style_t *style;
1729 REQUIRE(stylep != NULL && *stylep == NULL);
1730 style = isc_mem_get(mctx, sizeof(*style));
1732 return (ISC_R_NOMEMORY);
1734 style->flags = flags;
1735 style->ttl_column = ttl_column;
1736 style->class_column = class_column;
1737 style->type_column = type_column;
1738 style->rdata_column = rdata_column;
1739 style->line_length = line_length;
1740 style->tab_width = tab_width;
1743 return (ISC_R_SUCCESS);
1747 dns_master_styledestroy(dns_master_style_t **stylep, isc_mem_t *mctx) {
1748 dns_master_style_t *style;
1750 REQUIRE(stylep != NULL && *stylep != NULL);
1753 isc_mem_put(mctx, style, sizeof(*style));