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/*
* Copyright (C) 2004-2008, 2011 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1999-2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: masterdump.h,v 1.42.524.2 2011-05-28 00:27:48 tbox Exp $ */
#ifndef DNS_MASTERDUMP_H
#define DNS_MASTERDUMP_H 1
/*! \file dns/masterdump.h */
/***
*** Imports
***/
#include <stdio.h>
#include <isc/lang.h>
#include <dns/types.h>
/***
*** Types
***/
typedef struct dns_master_style dns_master_style_t;
/***
*** Definitions
***/
/*
* Flags affecting master file formatting. Flags 0x0000FFFF
* define the formatting of the rdata part and are defined in
* rdata.h.
*/
/*% Omit the owner name when possible. */
#define DNS_STYLEFLAG_OMIT_OWNER 0x00010000U
/*%
* Omit the TTL when possible. If DNS_STYLEFLAG_TTL is
* also set, this means no TTLs are ever printed
* because $TTL directives are generated before every
* change in the TTL. In this case, no columns need to
* be reserved for the TTL. Master files generated with
* these options will be rejected by BIND 4.x because it
* does not recognize the $TTL directive.
*
* If DNS_STYLEFLAG_TTL is not also set, the TTL will be
* omitted when it is equal to the previous TTL.
* This is correct according to RFC1035, but the
* TTLs may be silently misinterpreted by older
* versions of BIND which use the SOA MINTTL as a
* default TTL value.
*/
#define DNS_STYLEFLAG_OMIT_TTL 0x00020000U
/*% Omit the class when possible. */
#define DNS_STYLEFLAG_OMIT_CLASS 0x00040000U
/*% Output $TTL directives. */
#define DNS_STYLEFLAG_TTL 0x00080000U
/*%
* Output $ORIGIN directives and print owner names relative to
* the origin when possible.
*/
#define DNS_STYLEFLAG_REL_OWNER 0x00100000U
/*% Print domain names in RR data in relative form when possible.
For this to take effect, DNS_STYLEFLAG_REL_OWNER must also be set. */
#define DNS_STYLEFLAG_REL_DATA 0x00200000U
/*% Print the trust level of each rdataset. */
#define DNS_STYLEFLAG_TRUST 0x00400000U
/*% Print negative caching entries. */
#define DNS_STYLEFLAG_NCACHE 0x00800000U
/*% Never print the TTL. */
#define DNS_STYLEFLAG_NO_TTL 0x01000000U
/*% Never print the CLASS. */
#define DNS_STYLEFLAG_NO_CLASS 0x02000000U
/*% Report re-signing time. */
#define DNS_STYLEFLAG_RESIGN 0x04000000U
ISC_LANG_BEGINDECLS
/***
*** Constants
***/
/*%
* The default master file style.
*
* This uses $TTL directives to avoid the need to dedicate a
* tab stop for the TTL. The class is only printed for the first
* rrset in the file and shares a tab stop with the RR type.
*/
LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_default;
/*%
* A master file style that dumps zones to a very generic format easily
* imported/checked with external tools.
*/
LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_full;
/*%
* A master file style that prints explicit TTL values on each
* record line, never using $TTL statements. The TTL has a tab
* stop of its own, but the class and type share one.
*/
LIBDNS_EXTERNAL_DATA extern const dns_master_style_t
dns_master_style_explicitttl;
/*%
* A master style format designed for cache files. It prints explicit TTL
* values on each record line and never uses $ORIGIN or relative names.
*/
LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_cache;
/*%
* A master style that prints name, ttl, class, type, and value on
* every line. Similar to explicitttl above, but more verbose.
* Intended for generating master files which can be easily parsed
* by perl scripts and similar applications.
*/
LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_simple;
/*%
* The style used for debugging, "dig" output, etc.
*/
LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_debug;
/***
*** Functions
***/
void
dns_dumpctx_attach(dns_dumpctx_t *source, dns_dumpctx_t **target);
/*%<
* Attach to a dump context.
*
* Require:
*\li 'source' to be valid.
*\li 'target' to be non NULL and '*target' to be NULL.
*/
void
dns_dumpctx_detach(dns_dumpctx_t **dctxp);
/*%<
* Detach from a dump context.
*
* Require:
*\li 'dctxp' to point to a valid dump context.
*
* Ensures:
*\li '*dctxp' is NULL.
*/
void
dns_dumpctx_cancel(dns_dumpctx_t *dctx);
/*%<
* Cancel a in progress dump.
*
* Require:
*\li 'dctx' to be valid.
*/
dns_dbversion_t *
dns_dumpctx_version(dns_dumpctx_t *dctx);
/*%<
* Return the version handle (if any) of the database being dumped.
*
* Require:
*\li 'dctx' to be valid.
*/
dns_db_t *
dns_dumpctx_db(dns_dumpctx_t *dctx);
/*%<
* Return the database being dumped.
*
* Require:
*\li 'dctx' to be valid.
*/
/*@{*/
isc_result_t
dns_master_dumptostreaminc(isc_mem_t *mctx, dns_db_t *db,
dns_dbversion_t *version,
const dns_master_style_t *style, FILE *f,
isc_task_t *task, dns_dumpdonefunc_t done,
void *done_arg, dns_dumpctx_t **dctxp);
isc_result_t
dns_master_dumptostream(isc_mem_t *mctx, dns_db_t *db,
dns_dbversion_t *version,
const dns_master_style_t *style, FILE *f);
isc_result_t
dns_master_dumptostream2(isc_mem_t *mctx, dns_db_t *db,
dns_dbversion_t *version,
const dns_master_style_t *style,
dns_masterformat_t format, FILE *f);
/*%<
* Dump the database 'db' to the steam 'f' in the specified format by
* 'format'. If the format is dns_masterformat_text (the RFC1035 format),
* 'style' specifies the file style (e.g., &dns_master_style_default).
*
* dns_master_dumptostream() is an old form of dns_master_dumptostream2(),
* which always specifies the dns_masterformat_text format.
*
* Temporary dynamic memory may be allocated from 'mctx'.
*
* Require:
*\li 'task' to be valid.
*\li 'done' to be non NULL.
*\li 'dctxp' to be non NULL && '*dctxp' to be NULL.
*
* Returns:
*\li ISC_R_SUCCESS
*\li ISC_R_CONTINUE dns_master_dumptostreaminc() only.
*\li ISC_R_NOMEMORY
*\li Any database or rrset iterator error.
*\li Any dns_rdata_totext() error code.
*/
/*@}*/
/*@{*/
isc_result_t
dns_master_dumpinc(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
const dns_master_style_t *style, const char *filename,
isc_task_t *task, dns_dumpdonefunc_t done, void *done_arg,
dns_dumpctx_t **dctxp);
isc_result_t
dns_master_dumpinc2(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
const dns_master_style_t *style, const char *filename,
isc_task_t *task, dns_dumpdonefunc_t done, void *done_arg, dns_dumpctx_t **dctxp, dns_masterformat_t format);
isc_result_t
dns_master_dump(isc_mem_t *mctx, dns_db_t *db,
dns_dbversion_t *version,
const dns_master_style_t *style, const char *filename);
isc_result_t
dns_master_dump2(isc_mem_t *mctx, dns_db_t *db,
dns_dbversion_t *version,
const dns_master_style_t *style, const char *filename,
dns_masterformat_t format);
/*%<
* Dump the database 'db' to the file 'filename' in the specified format by
* 'format'. If the format is dns_masterformat_text (the RFC1035 format),
* 'style' specifies the file style (e.g., &dns_master_style_default).
*
* dns_master_dumpinc() and dns_master_dump() are old forms of _dumpinc2()
* and _dump2(), respectively, which always specify the dns_masterformat_text
* format.
*
* Temporary dynamic memory may be allocated from 'mctx'.
*
* Returns:
*\li ISC_R_SUCCESS
*\li ISC_R_CONTINUE dns_master_dumpinc() only.
*\li ISC_R_NOMEMORY
*\li Any database or rrset iterator error.
*\li Any dns_rdata_totext() error code.
*/
/*@}*/
isc_result_t
dns_master_rdatasettotext(dns_name_t *owner_name,
dns_rdataset_t *rdataset,
const dns_master_style_t *style,
isc_buffer_t *target);
/*%<
* Convert 'rdataset' to text format, storing the result in 'target'.
*
* Notes:
*\li The rdata cursor position will be changed.
*
* Requires:
*\li 'rdataset' is a valid non-question rdataset.
*
*\li 'rdataset' is not empty.
*/
isc_result_t
dns_master_questiontotext(dns_name_t *owner_name,
dns_rdataset_t *rdataset,
const dns_master_style_t *style,
isc_buffer_t *target);
isc_result_t
dns_master_dumpnodetostream(isc_mem_t *mctx, dns_db_t *db,
dns_dbversion_t *version,
dns_dbnode_t *node, dns_name_t *name,
const dns_master_style_t *style,
FILE *f);
isc_result_t
dns_master_dumpnode(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version,
dns_dbnode_t *node, dns_name_t *name,
const dns_master_style_t *style, const char *filename);
isc_result_t
dns_master_stylecreate(dns_master_style_t **style, unsigned int flags,
unsigned int ttl_column, unsigned int class_column,
unsigned int type_column, unsigned int rdata_column,
unsigned int line_length, unsigned int tab_width,
isc_mem_t *mctx);
void
dns_master_styledestroy(dns_master_style_t **style, isc_mem_t *mctx);
ISC_LANG_ENDDECLS
#endif /* DNS_MASTERDUMP_H */
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