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18 /* $Id: masterdump.h,v 1.47 2011/12/08 23:46:49 tbox Exp $ */
20 #ifndef DNS_MASTERDUMP_H
21 #define DNS_MASTERDUMP_H 1
23 /*! \file dns/masterdump.h */
33 #include <dns/types.h>
39 typedef struct dns_master_style dns_master_style_t;
46 * Flags affecting master file formatting. Flags 0x0000FFFF
47 * define the formatting of the rdata part and are defined in
51 /*% Omit the owner name when possible. */
52 #define DNS_STYLEFLAG_OMIT_OWNER 0x00010000U
55 * Omit the TTL when possible. If DNS_STYLEFLAG_TTL is
56 * also set, this means no TTLs are ever printed
57 * because $TTL directives are generated before every
58 * change in the TTL. In this case, no columns need to
59 * be reserved for the TTL. Master files generated with
60 * these options will be rejected by BIND 4.x because it
61 * does not recognize the $TTL directive.
63 * If DNS_STYLEFLAG_TTL is not also set, the TTL will be
64 * omitted when it is equal to the previous TTL.
65 * This is correct according to RFC1035, but the
66 * TTLs may be silently misinterpreted by older
67 * versions of BIND which use the SOA MINTTL as a
70 #define DNS_STYLEFLAG_OMIT_TTL 0x00020000U
72 /*% Omit the class when possible. */
73 #define DNS_STYLEFLAG_OMIT_CLASS 0x00040000U
75 /*% Output $TTL directives. */
76 #define DNS_STYLEFLAG_TTL 0x00080000U
79 * Output $ORIGIN directives and print owner names relative to
80 * the origin when possible.
82 #define DNS_STYLEFLAG_REL_OWNER 0x00100000U
84 /*% Print domain names in RR data in relative form when possible.
85 For this to take effect, DNS_STYLEFLAG_REL_OWNER must also be set. */
86 #define DNS_STYLEFLAG_REL_DATA 0x00200000U
88 /*% Print the trust level of each rdataset. */
89 #define DNS_STYLEFLAG_TRUST 0x00400000U
91 /*% Print negative caching entries. */
92 #define DNS_STYLEFLAG_NCACHE 0x00800000U
94 /*% Never print the TTL. */
95 #define DNS_STYLEFLAG_NO_TTL 0x01000000U
97 /*% Never print the CLASS. */
98 #define DNS_STYLEFLAG_NO_CLASS 0x02000000U
100 /*% Report re-signing time. */
101 #define DNS_STYLEFLAG_RESIGN 0x04000000U
110 * The default master file style.
112 * This uses $TTL directives to avoid the need to dedicate a
113 * tab stop for the TTL. The class is only printed for the first
114 * rrset in the file and shares a tab stop with the RR type.
116 LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_default;
119 * A master file style that dumps zones to a very generic format easily
120 * imported/checked with external tools.
122 LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_full;
125 * A master file style that prints explicit TTL values on each
126 * record line, never using $TTL statements. The TTL has a tab
127 * stop of its own, but the class and type share one.
129 LIBDNS_EXTERNAL_DATA extern const dns_master_style_t
130 dns_master_style_explicitttl;
133 * A master style format designed for cache files. It prints explicit TTL
134 * values on each record line and never uses $ORIGIN or relative names.
136 LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_cache;
139 * A master style that prints name, ttl, class, type, and value on
140 * every line. Similar to explicitttl above, but more verbose.
141 * Intended for generating master files which can be easily parsed
142 * by perl scripts and similar applications.
144 LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_simple;
147 * The style used for debugging, "dig" output, etc.
149 LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_debug;
152 * The style used for dumping "key" zones.
154 LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_keyzone;
161 dns_dumpctx_attach(dns_dumpctx_t *source, dns_dumpctx_t **target);
163 * Attach to a dump context.
166 *\li 'source' to be valid.
167 *\li 'target' to be non NULL and '*target' to be NULL.
171 dns_dumpctx_detach(dns_dumpctx_t **dctxp);
173 * Detach from a dump context.
176 *\li 'dctxp' to point to a valid dump context.
179 *\li '*dctxp' is NULL.
183 dns_dumpctx_cancel(dns_dumpctx_t *dctx);
185 * Cancel a in progress dump.
188 *\li 'dctx' to be valid.
192 dns_dumpctx_version(dns_dumpctx_t *dctx);
194 * Return the version handle (if any) of the database being dumped.
197 *\li 'dctx' to be valid.
201 dns_dumpctx_db(dns_dumpctx_t *dctx);
203 * Return the database being dumped.
206 *\li 'dctx' to be valid.
212 dns_master_dumptostreaminc(isc_mem_t *mctx, dns_db_t *db,
213 dns_dbversion_t *version,
214 const dns_master_style_t *style, FILE *f,
215 isc_task_t *task, dns_dumpdonefunc_t done,
216 void *done_arg, dns_dumpctx_t **dctxp);
219 dns_master_dumptostream(isc_mem_t *mctx, dns_db_t *db,
220 dns_dbversion_t *version,
221 const dns_master_style_t *style, FILE *f);
224 dns_master_dumptostream2(isc_mem_t *mctx, dns_db_t *db,
225 dns_dbversion_t *version,
226 const dns_master_style_t *style,
227 dns_masterformat_t format, FILE *f);
230 dns_master_dumptostream3(isc_mem_t *mctx, dns_db_t *db,
231 dns_dbversion_t *version,
232 const dns_master_style_t *style,
233 dns_masterformat_t format,
234 dns_masterrawheader_t *header, FILE *f);
236 * Dump the database 'db' to the steam 'f' in the specified format by
237 * 'format'. If the format is dns_masterformat_text (the RFC1035 format),
238 * 'style' specifies the file style (e.g., &dns_master_style_default).
240 * dns_master_dumptostream() is an old form of dns_master_dumptostream3(),
241 * which always specifies the dns_masterformat_text format.
242 * dns_master_dumptostream2() is an old form which always specifies
245 * If 'format' is dns_masterformat_raw, then 'header' can contain
246 * information to be written to the file header.
248 * Temporary dynamic memory may be allocated from 'mctx'.
251 *\li 'task' to be valid.
252 *\li 'done' to be non NULL.
253 *\li 'dctxp' to be non NULL && '*dctxp' to be NULL.
257 *\li ISC_R_CONTINUE dns_master_dumptostreaminc() only.
259 *\li Any database or rrset iterator error.
260 *\li Any dns_rdata_totext() error code.
266 dns_master_dumpinc(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
267 const dns_master_style_t *style, const char *filename,
268 isc_task_t *task, dns_dumpdonefunc_t done, void *done_arg,
269 dns_dumpctx_t **dctxp);
272 dns_master_dumpinc2(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
273 const dns_master_style_t *style, const char *filename,
274 isc_task_t *task, dns_dumpdonefunc_t done, void *done_arg, dns_dumpctx_t **dctxp, dns_masterformat_t format);
277 dns_master_dumpinc3(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
278 const dns_master_style_t *style, const char *filename,
279 isc_task_t *task, dns_dumpdonefunc_t done, void
280 *done_arg, dns_dumpctx_t **dctxp,
281 dns_masterformat_t format, dns_masterrawheader_t *header);
284 dns_master_dump(isc_mem_t *mctx, dns_db_t *db,
285 dns_dbversion_t *version,
286 const dns_master_style_t *style, const char *filename);
289 dns_master_dump2(isc_mem_t *mctx, dns_db_t *db,
290 dns_dbversion_t *version,
291 const dns_master_style_t *style, const char *filename,
292 dns_masterformat_t format);
295 dns_master_dump3(isc_mem_t *mctx, dns_db_t *db,
296 dns_dbversion_t *version,
297 const dns_master_style_t *style, const char *filename,
298 dns_masterformat_t format, dns_masterrawheader_t *header);
301 * Dump the database 'db' to the file 'filename' in the specified format by
302 * 'format'. If the format is dns_masterformat_text (the RFC1035 format),
303 * 'style' specifies the file style (e.g., &dns_master_style_default).
305 * dns_master_dumpinc() and dns_master_dump() are old forms of _dumpinc3()
306 * and _dump3(), respectively, which always specify the dns_masterformat_text
307 * format. dns_master_dumpinc2() and dns_master_dump2() are old forms which
308 * always specify a NULL header.
310 * If 'format' is dns_masterformat_raw, then 'header' can contain
311 * information to be written to the file header.
313 * Temporary dynamic memory may be allocated from 'mctx'.
317 *\li ISC_R_CONTINUE dns_master_dumpinc() only.
319 *\li Any database or rrset iterator error.
320 *\li Any dns_rdata_totext() error code.
325 dns_master_rdatasettotext(dns_name_t *owner_name,
326 dns_rdataset_t *rdataset,
327 const dns_master_style_t *style,
328 isc_buffer_t *target);
330 * Convert 'rdataset' to text format, storing the result in 'target'.
333 *\li The rdata cursor position will be changed.
336 *\li 'rdataset' is a valid non-question rdataset.
338 *\li 'rdataset' is not empty.
342 dns_master_questiontotext(dns_name_t *owner_name,
343 dns_rdataset_t *rdataset,
344 const dns_master_style_t *style,
345 isc_buffer_t *target);
348 dns_master_dumpnodetostream(isc_mem_t *mctx, dns_db_t *db,
349 dns_dbversion_t *version,
350 dns_dbnode_t *node, dns_name_t *name,
351 const dns_master_style_t *style,
355 dns_master_dumpnode(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
356 dns_dbnode_t *node, dns_name_t *name,
357 const dns_master_style_t *style, const char *filename);
360 dns_master_stylecreate(dns_master_style_t **style, unsigned int flags,
361 unsigned int ttl_column, unsigned int class_column,
362 unsigned int type_column, unsigned int rdata_column,
363 unsigned int line_length, unsigned int tab_width,
367 dns_master_stylecreate2(dns_master_style_t **style, unsigned int flags,
368 unsigned int ttl_column, unsigned int class_column,
369 unsigned int type_column, unsigned int rdata_column,
370 unsigned int line_length, unsigned int tab_width,
371 unsigned int split_width, isc_mem_t *mctx);
373 dns_master_styledestroy(dns_master_style_t **style, isc_mem_t *mctx);
377 #endif /* DNS_MASTERDUMP_H */