5170. [test] Added --with-dlz-filesystem to feature-test. [GL !1587]
-5169. [bug] The presense of certain types in an otherwise
+5169. [bug] The presence of certain types in an otherwise
empty node could cause a crash while processing a
type ANY query. [GL #901]
failure while cleaning up a stale rdataset.
[RT #16292]
-2058. [bug] Adjust how we calculate rtt estimates in the presense
+2058. [bug] Adjust how we calculate rtt estimates in the presence
of authoritative servers that drop EDNS and/or CD
requests. Also fallback to EDNS/512 and plain DNS
faster for zones with less than 3 servers. [RT #16187]
blocking.
772. [bug] Owner names could be incorrectly omitted from cache
- dumps in the presense of negative caching entries.
+ dumps in the presence of negative caching entries.
[RT #991]
771. [cleanup] TSIG errors related to unsynchronized clocks
lock in certain error cases.
18. [bug] Use AC_TRY_LINK rather than AC_TRY_COMPILE in
- configure.in to check for presense of in6addr_any.
+ configure.in to check for presence of in6addr_any.
17. [func] Do configuration file post-load validation of zones.
DIGOPTS="+tcp +noadd +nosea +nostat +nocmd +dnssec -p ${PORT}"
n=`expr $n + 1`
-echo_i "checking that NSEC wildcard non-existance proof is returned auth ($n)"
+echo_i "checking that NSEC wildcard non-existence proof is returned auth ($n)"
ret=0
$DIG $DIGOPTS a b.wild.nsec +norec @10.53.0.1 > dig.out.ns1.test$n || ret=1
grep -i 'a\.wild\.nsec\..*NSEC.*nsec\..*NSEC' dig.out.ns1.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that NSEC wildcard non-existance proof is returned non-validating ($n)"
+echo_i "checking that NSEC wildcard non-existence proof is returned non-validating ($n)"
ret=0
$DIG $DIGOPTS a b.wild.nsec @10.53.0.2 > dig.out.ns2.test$n || ret=1
grep -i 'a\.wild\.nsec\..*NSEC.*nsec\..*NSEC' dig.out.ns2.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that NSEC wildcard non-existance proof is returned validating ($n)"
+echo_i "checking that NSEC wildcard non-existence proof is returned validating ($n)"
ret=0
$DIG $DIGOPTS a b.wild.nsec @10.53.0.3 > dig.out.ns3.test$n || ret=1
grep -i 'a\.wild\.nsec\..*NSEC.*nsec\..*NSEC' dig.out.ns3.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that NSEC wildcard non-existance proof is returned validating + CD ($n)"
+echo_i "checking that NSEC wildcard non-existence proof is returned validating + CD ($n)"
ret=0
$DIG $DIGOPTS +cd a b.wild.nsec @10.53.0.5 > dig.out.ns5.test$n || ret=1
grep -i 'a\.wild\.nsec\..*NSEC.*nsec\..*NSEC' dig.out.ns5.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that returned NSEC wildcard non-existance proof validates ($n)"
+echo_i "checking that returned NSEC wildcard non-existence proof validates ($n)"
ret=0
$DIG $DIGOPTS a b.wild.nsec @10.53.0.4 > dig.out.ns4.test$n || ret=1
grep -i 'a\.wild\.nsec\..*NSEC.*nsec\..*NSEC' dig.out.ns4.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that NSEC wildcard non-existance proof is returned private, validating ($n)"
+echo_i "checking that NSEC wildcard non-existence proof is returned private, validating ($n)"
ret=0
$DIG $DIGOPTS a b.wild.private.nsec @10.53.0.3 > dig.out.ns3.test$n || ret=1
grep -i 'a\.wild\.private\.nsec\..*NSEC.*private\.nsec\..*NSEC' dig.out.ns3.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that returned NSEC wildcard non-existance proof for private zone validates ($n)"
+echo_i "checking that returned NSEC wildcard non-existence proof for private zone validates ($n)"
ret=0
$DIG $DIGOPTS a b.wild.private.nsec @10.53.0.4 > dig.out.ns4.test$n || ret=1
grep -i 'a\.wild\.private\.nsec\..*NSEC.*private\.nsec\..*NSEC' dig.out.ns4.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that NSEC3 wildcard non-existance proof is returned auth ($n)"
+echo_i "checking that NSEC3 wildcard non-existence proof is returned auth ($n)"
ret=0
$DIG $DIGOPTS a b.wild.nsec3 +norec @10.53.0.1 > dig.out.ns1.test$n || ret=1
grep -i 'O3TJ8D9AJ54CBTFCQCJ3QK49CH7SF6H9\.nsec3\..*V5DLFB6UJNHR94LQ61FO607KGK12H88A' dig.out.ns1.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that NSEC3 wildcard non-existance proof is returned non-validating ($n)"
+echo_i "checking that NSEC3 wildcard non-existence proof is returned non-validating ($n)"
ret=0
$DIG $DIGOPTS a b.wild.nsec3 @10.53.0.2 > dig.out.ns2.test$n || ret=1
grep -i 'O3TJ8D9AJ54CBTFCQCJ3QK49CH7SF6H9\.nsec3\..*V5DLFB6UJNHR94LQ61FO607KGK12H88A' dig.out.ns2.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that NSEC3 wildcard non-existance proof is returned validating ($n)"
+echo_i "checking that NSEC3 wildcard non-existence proof is returned validating ($n)"
ret=0
$DIG $DIGOPTS a b.wild.nsec3 @10.53.0.3 > dig.out.ns3.test$n || ret=1
grep -i 'O3TJ8D9AJ54CBTFCQCJ3QK49CH7SF6H9\.nsec3\..*V5DLFB6UJNHR94LQ61FO607KGK12H88A' dig.out.ns3.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that NSEC3 wildcard non-existance proof is returned validating + CD ($n)"
+echo_i "checking that NSEC3 wildcard non-existence proof is returned validating + CD ($n)"
ret=0
$DIG $DIGOPTS +cd a b.wild.nsec3 @10.53.0.5 > dig.out.ns5.test$n || ret=1
grep -i 'O3TJ8D9AJ54CBTFCQCJ3QK49CH7SF6H9\.nsec3\..*V5DLFB6UJNHR94LQ61FO607KGK12H88A' dig.out.ns5.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that returned NSEC3 wildcard non-existance proof validates ($n)"
+echo_i "checking that returned NSEC3 wildcard non-existence proof validates ($n)"
ret=0
$DIG $DIGOPTS a b.wild.nsec3 @10.53.0.4 > dig.out.ns4.test$n || ret=1
grep -i 'O3TJ8D9AJ54CBTFCQCJ3QK49CH7SF6H9\.nsec3\..*V5DLFB6UJNHR94LQ61FO607KGK12H88A' dig.out.ns4.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that NSEC3 wildcard non-existance proof is returned private, validating ($n)"
+echo_i "checking that NSEC3 wildcard non-existence proof is returned private, validating ($n)"
ret=0
$DIG $DIGOPTS a b.wild.private.nsec3 @10.53.0.3 > dig.out.ns3.test$n || ret=1
grep -i 'UDBSP4R8OUOT6HSO39VD8B5LMOSHRD5N\.private\.nsec3\..*NSEC3.*ASDRUIB7GO00OR92S5OUGI404LT27RNU' dig.out.ns3.test$n > /dev/null || ret=1
status=`expr $status + $ret`
n=`expr $n + 1`
-echo_i "checking that returned NSEC3 wildcard non-existance proof for private zone validates ($n)"
+echo_i "checking that returned NSEC3 wildcard non-existence proof for private zone validates ($n)"
ret=0
$DIG $DIGOPTS a b.wild.private.nsec3 @10.53.0.4 > dig.out.ns4.test$n || ret=1
grep -i 'UDBSP4R8OUOT6HSO39VD8B5LMOSHRD5N\.private\.nsec3\..*NSEC3.*ASDRUIB7GO00OR92S5OUGI404LT27RNU' dig.out.ns4.test$n > /dev/null || ret=1
* dnssec-signzone should add cds and/or cdnskey to zone apex iff the
DNSKEY is published and is signing the DNSKEY RRset. CDS and CDNSKEY
records are only removed if there is a deletion date set (implicit on
- matching DNSKEY going inactive / unpublished or explict).
+ matching DNSKEY going inactive / unpublished or explicit).
Non-matching CDS and CDNSKEY are removed.
* auto-dnssec maintain should cds and/or cdnskey to zone apex iff the
DNSKEY is published and is signing the DNSKEY RRset. CDS and CDNSKEY
records are only removed if there is a deletion date set (implicit on
- matching DNSKEY going inactive / unpublished or explict).
+ matching DNSKEY going inactive / unpublished or explicit).
* UPDATE should check that CDS and CDNSKEY match a active DNSKEY that
is signing the DNSKEY RRset and ignore otherwise. This should be
the valid compression methods of the RBT. All nodes of the RBT
will have an offset excluding the root node.
- The local compression RBT will be initalised with the owner name
+ The local compression RBT will be initialised with the owner name
and the start of the rdata will be recorded.
We will use deepest partial match to find the potential
dns_result_t
dns_compress_init(dns_compress_t *cctx, int edns, isc_mem_t *mctx);
- Initalises cctx to empty and sets whether 16 bit global
+ Initialises cctx to empty and sets whether 16 bit global
compression targets are to be added to the global RBT based on the
edns value.
dns_compress_localinit(dns_compress_t *cctx, dns_name_t *owner,
isc_buffer_t *target);
- Initalise a RBT for local compression, freeing and existing RBT.
+ Initialise a RBT for local compression, freeing and existing RBT.
Record current offset.
dns_compress_invalidate(dns_compress_t *cctx);
Find the best best match in the global / local RBT. Returns prefix,
suffix and offset of the bestmatch. Findglobal(), findlocal()
- requires as workspace as it may be neccessary to spit a bit stream
+ requires as workspace as it may be necessary to spit a bit stream
label. The result prefix will be such that it can be added to the
wire format followed by a compression pointer pointing to offset.
Suffix is returned so that it is possible to add the compression
Add compression pointers pointing to lebels (if any) in prefix.
The offset to the first label is passed in offset.
-Dependancy:
+Dependency:
Requires RBT deepest match.
Requires the ability to walk the RBT and remove any node which
In general the resolver / nameserver should accept any compression
method at any time regardless of whether it was legal to
- send it. This fits with the priciple of being liberal with
+ send it. This fits with the principle of being liberal with
what you accept and strict with what you send.
There are a few cases where it does not make sense to accept
or in a question.
When performing regression testing however we should be as strict
- as possible. Hence we need to be able modifiy the behaviour of the
+ as possible. Hence we need to be able modify the behaviour of the
decompression routines.
To be able to decompress a domain name we need some or all of the
void
dns_decompress_init(dns_decompress_t *dctx, int edns,
bool strict);
- initalise dctx
+ initialise dctx
dctx->ownername is invalidated
void
dns_decompress_localinit(dns_decompress_t *dctx, dns_name_t *name,
isc_buffer_t *source);
- initalise dctx->ownername
+ initialise dctx->ownername
record source->current to dctx->rdata
void
signing process. This likely will go away in favor of a new method.
1. `sig-validity-interval`: Specifies the number of days a signature is valid.
- The second optional value is the refresh interval. Thos option will
+ The second optional value is the refresh interval. Those option will
be replaced by KASP configuration values "signatures-validity" and
"signatures-refresh".
unsigned int dscp; /*%< UDP dscp value */
};
-A convience function will be provided to allocate and intialize the structure.
+A convenience function will be provided to allocate and initialize the structure.
isc_socketevent_t *
isc_socket_socketevent(isc_socket_t *sock0, isc_eventtype_t eventtype,
FUNDAMENTALS
This section describes the basics of how the system works, introduces
-terms and defines C preprocessor symbols used in conjuction with
+terms and defines C preprocessor symbols used in conjunction with
logging functions. Actual uses of functions are demonstrated in the
following two sections.
Since null channels go nowhere, no additional destination
specification is necessary.
-The words "destination" and "channel" can be used interchangably in
+The words "destination" and "channel" can be used interchangeably in
some contexts. Referring to a file channel, for example, means a
channel that has a file destination.
You can set all four of those options with ISC_LOG_PRINTALL.
-Syslog channels do not need ISC_LOG_PRINTTIME, but it is usally a good
+Syslog channels do not need ISC_LOG_PRINTTIME, but it is usually a good
idea for file and file descriptor feeds.
The additional option does not affect formatting. It is
if (isc_log_create(mctx, &lctx, &lcfg) != ISC_R_SUCCESS))
oops_it_didnt_work();
-3) Initalize any additional libraries. The convention for the name of
+3) Initialize any additional libraries. The convention for the name of
the initialization function is {library}_log_init, with just a pointer
to the logging context as an argument. The function can only be
called once in a program or it will generate an assertion error.
result = isc_logconfig_use(lctx, newlcfg);
-If the new configration is successfully installed, then the old one
+If the new configuration is successfully installed, then the old one
will be destroyed, freeing all memory it used.
There are three additional functions you might find useful in your
differentiate very similar messages in the same module.
When available, include standard library return codes via %s in the
-format string, with strerrr(errno) from the system libary or functions
+format string, with strerrr(errno) from the system library or functions
like isc_result_totext(result) and dns_result_totext(result).
THINGS I AM NOT KEEN ABOUT
each associated with one networker, and all listening on the same address
via `SO_REUSEADDR`. (The parent's reference counter is used for all the
parent and child sockets together; none are destroyed until there are no
-remaining referenes to any of tem.)
+remaining references to any of tem.)
## TCP listening
In BIND9, the red-black tree implementation uses DNS names as keys,
and can store arbitrary data with each key value. "name" and "key"
-are used interchangably in this document.
+are used interchangeably in this document.
The basic red-black tree algorithm is further adapted for use in BIND9
to incorporate the notion of hierarchy, creating a tree of red-black
/*
* The following bitfields add up to a total bitwidth of 32.
* The range of values necessary for each item is indicated,
- * but in the case of "attributes" the field is wider to accomodate
+ * but in the case of "attributes" the field is wider to accommodate
* possible future expansion. "offsetlen" could be one bit
* narrower by always adjusting its value by 1 to find the real
* offsetlen, but doing so does not gain anything (except perhaps
* check that each RRSIG set has a valid RRSIG and that all DNSKEY algorithms
in use are checked.
* provide a mechanism to mark DNSKEY algorithms to be ignored to support
- verification of zones that are in the processs of adding/removing
+ verification of zones that are in the process of adding/removing
support for a algorithm.
* provide a mechanism to check the zone as of a specified date and time.
* check that RRSIG won't expire within the TTL interval.
Overview
Zones are the unit of delegation in the DNS and may go from holding
- RR's only at the zone top to holding the complete hierachy (private
+ RR's only at the zone top to holding the complete hierarchy (private
roots zones). Zones have an associated database which is the
container for the RR sets that make up the zone.
support IXFR requests. While the entire contents of the old
version does not need to be kept, a change log needs to be
kept. An index into this log would be useful in speeding
- up replies. These versions have an explict expiry date.
+ up replies. These versions have an explicit expiry date.
"How long are we going to keep them operationally?"
While there are expriry dates based on last update /
Compatibility:
- Zones are required to be configuration file compatable with
+ Zones are required to be configuration file compatible with
BIND 8.x.
Types:
subscripts). Other than for generic variables, if a negative value isn't
meaningful, the variable should be unsigned. Assignments and
comparisons between signed and unsigned integers should be avoided;
-suppressing the warnings with casts is not desir
eable.<P>
+suppressing the warnings with casts is not desirable.<P>
<H4>Casting</H4>
Casting should be avoided when possible. When it is necessary, there
-Renaming files by respository copy
+Renaming files by repository copy
When you need to rename or move a file that is under CVS control, use
### <a name="reviews"></a>The code review process
-Every line of code comitted to BIND has been reviewed by ISC engineers
+Every line of code committed to BIND has been reviewed by ISC engineers
first.
The code review process is a dialog between the original author and the
to a tiny niche). Second, whether the approach taken is consistent
with ISC's open-internet goals, BIND architecture, and DNS best
practices. Third, the contribution is checked for correctness and
-completness.
+completeness.
Obvious bottlenecks and places where performance or reliability may suffer
are noted as part of the review.
#### <a name="layout"></a> Source tree layout
* `bind9/bin`: binaries
- * `bind9/bin/named`: source code for the `named` binary; includes server configuration, interface manager, client manger, and high-level processing logic for query, update, and xfer.
+ * `bind9/bin/named`: source code for the `named` binary; includes server configuration, interface manager, client manager, and high-level processing logic for query, update, and xfer.
* `bind9/bin/dnssec`: DNSSEC-related tools written in C:
`dnssec-keygen`, `dnssec-signzone`, `dnssec-settime`,
`dnssec-revoke`, `dnssec-keyfromlabel`, `dnssec-dsfromkey`,
char buffer[BUFSIZ];
size_t n;
- result = isc_stdio_read(buffer, 1, sizeof(bufer), fp, &n);
+ result = isc_stdio_read(buffer, 1, sizeof(buffer), fp, &n);
if (result == ISC_R_SUCCESS) {
/* Do something with 'buffer'. */
} else if (result == ISC_R_EOF) {
for the ISC library are in `lib/isc/include/isc/result.h`.
ISC library result codes (many of which are generically useful elsewhere)
-begin with `ISC_R`: examples inclue `ISC_R_SUCCESS`, `ISC_R_FAILURE`,
+begin with `ISC_R`: examples include `ISC_R_SUCCESS`, `ISC_R_FAILURE`,
`ISC_R_NOMEMORY`, etc.
DNS library result codes begin with `DNS_R`: `DNS_R_SERVFAIL`, `DNS_R_NXRRSET`,
}
In some cases, calling an iterator function causes the acquisition of
-database and/or node locks. Rather than reaquire these locks every time
+database and/or node locks. Rather than reacquire these locks every time
one of these functions is called, they are often simply held until the
iterator is destroyed. If a caller wishes to hold an iterator open but not
use it for a while, it should call the iterator's `pause()` function (such
`ISC_LOG_DYNAMIC` indicates to the logging system that
debugging messages are desired, but only at the current debugging level
-of the program. The debugging level can be modifid dynamically at
+of the program. The debugging level can be modified dynamically at
runtime; in `named` this can be done by the `"rndc trace"` command.
When the debugging level is 0 (turned off), then no debugging messages are
written to the channel. If the debugging level is raised, only debugging
oops_it_didnt_work();
}
-1. Initalize any additional libraries. The convention for the name of
+1. Initialize any additional libraries. The convention for the name of
the initialization function is `{library}_log_init()`, with a pointer to
the logging context as an argument. The function can only be called
once in a program or it will generate an assertion.
"checknames" checks the contents of the rdata with the given
owner name to ensure that it meets externally defined syntax rules.
If `false` is returned, then `bad` will point to the name that
-caused the probelm.
+caused the problem.
static int
casecompare[_<class>]_<type>(const dns_rdata_t *rdata1,
*/
isc_socket_recv(sock, ®ion, 1, recvdone, NULL);
-A timer is set for a specifed time in the future, and the event will
+A timer is set for a specified time in the future, and the event will
be triggered at that time.
/*
occurred in BIND 8.x and earlier, in which there were multiple places in the
code base that decoded wire format to internal format or compared rdata,
sometimes with subtly different behaviour (bugs), and sometimes failing to
-support a particular type, leading to internal inconsistancy.
+support a particular type, leading to internal inconsistency.
Each of these generic routines calls type-specific routines that provide
the type-specific details.
Adding a new rdata type requires determining whether the new rdata type is
class-specific or generic, writing code to perform the rdata operations for the
type, then integrating it into the build by placing the code into the rdata
-hierachy at the correct location under `lib/dns/rdata`. Running `make clean`
+hierarchy at the correct location under `lib/dns/rdata`. Running `make clean`
followed by `make` in `lib/dns` will cause the new rdata type to be picked up
and compiled.
sh util/altbuild.sh v9_1
Alteratively, you can do this after building the kit, by giving
- the kit .tar.gz file as an argument to altbuild.sh instad of
+ the kit .tar.gz file as an argument to altbuild.sh instead of
the CVS tag.
- If you can (= your system is similar enough to the one Tale is using),
only a single action associated with it, then BIND style specified that
no bracing was to used around that action. This has been revised: in
newly added code, braces are now preferred around all control statement
-code blocks. Note that legacy code has not yet been udpated to adhere to
+code blocks. Note that legacy code has not yet been updated to adhere to
this.
Good:
assignment or as part of a calculation.
If a statement containing a ternary operator spills over more than one
-line, put the `?` and `:` at the begginning of the following lines with two
+line, put the `?` and `:` at the beginning of the following lines with two
additional spaces of indent.
Using the ternary operator to specify a return value is very rarely
opaque outside that file. In these cases, the `typedef` occurs in the
associated header file, but the structure definition in the C file
itself. Examples of this include the zone object `dns_zone_t`;
-the structure is only acessable via get/set functions in
+the structure is only accessible via get/set functions in
`lib/dns/zone.c`. Other times, structure members can be accessed
from outside the C file where they are implemented; examples include
`dns_view_t`. Which way to implement a particular object is up to
If there is a chance the library call may not be completely portable,
edit `configure.in` to check for it on the local system and only call
it from within a suitable `#ifdef`. If the function is nonoptional,
-it may be necessary to add your own implentation of it (or copy one
+it may be necessary to add your own implementation of it (or copy one
from a source with a BSD-compatible license).
BIND provides portable internal versions of many common library calls.
* If we are not at a delegation then everything should be
* signed. If we are at a delegation then only the DS set
* is signed. The NS set is not signed at a delegation but
- * its existance is recorded in the bit map. Anything else
+ * its existence is recorded in the bit map. Anything else
* other than NSEC and DS is not signed at a delegation.
*/
if (rdataset.type != dns_rdatatype_rrsig &&
dns_zone_getssutable(zone, &ssutable);
/*
- * Update message processing can leak record existance information
+ * Update message processing can leak record existence information
* so check that we are allowed to query this zone. Additionally
* if we would refuse all updates for this zone we bail out here.
*/
projects / thirdparty / bind9.git / commitdiff
