Struct trust_dns_proto::rr::resource::Record[][src]

pub struct Record { /* fields omitted */ }
Expand description

Resource records are storage value in DNS, into which all key/value pair data is stored.

RFC 1035, DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION, November 1987

4.1.3. Resource record format

The answer, authority, and additional sections all share the same
format: a variable number of resource records, where the number of
records is specified in the corresponding count field in the header.
Each resource record has the following format:
                                    1  1  1  1  1  1
      0  1  2  3  4  5  6  7  8  9  0  1  2  3  4  5
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                                               |
    /                                               /
    /                      NAME                     /
    |                                               |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                      TYPE                     |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                     CLASS                     |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                      TTL                      |
    |                                               |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                   RDLENGTH                    |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--|
    /                     RDATA                     /
    /                                               /
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+

Implementations

Creates a default record, use the setters to build a more useful object.

There are no optional elements in this object, defaults are an empty name, type A, class IN, ttl of 0 and the 0.0.0.0 ip address.

Create a record with the specified initial values.

Arguments
  • name - name of the resource records
  • rr_type - the record type
  • ttl - time-to-live is the amount of time this record should be cached before refreshing

Create a record with the specified initial values.

Arguments
  • name - name of the resource records
  • ttl - time-to-live is the amount of time this record should be cached before refreshing
  • rdata - record data to associate with the Record
NAME            a domain name to which this resource record pertains.
TYPE            two octets containing one of the RR type codes.  This
                field specifies the meaning of the data in the RDATA
                field.
TYPE            two octets containing one of the RR type codes.  This
                field specifies the meaning of the data in the RDATA
                field.
CLASS           two octets which specify the class of the data in the
                RDATA field.
TTL             a 32 bit unsigned integer that specifies the time
                interval (in seconds) that the resource record may be
                cached before it should be discarded.  Zero values are
                interpreted to mean that the RR can only be used for the
                transaction in progress, and should not be cached.
RDATA           a variable length string of octets that describes the
                resource.  The format of this information varies
                according to the TYPE and CLASS of the resource record.
                For example, the if the TYPE is A and the CLASS is IN,
                the RDATA field is a 4 octet ARPA Internet address.

Returns the name of the record

Returns the type of the RData in the record

Returns the type of the RecordData in the record

Returns the DNSClass of the Record, generally IN fro internet

Returns the time-to-live of the record, for caching purposes

Returns the Record Data, i.e. the record information

Returns a mutable reference to the Record Data

Returns the RData consuming the Record

Trait Implementations

parse a resource record line example: WARNING: the record_bytes is 100% consumed and destroyed in this parsing process

Returns the object in binary form

Write the type to the stream

Returns the object in binary form

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Returns the “default value” for a type. Read more

This returns a Resource Record that is formatted for Edns(0). Note: the rcode_high value is only part of the rcode, the rest is part of the base

Performs the conversion.

Performs the conversion.

👎 Deprecated:

use From/Into

Performs the conversion to a RecordSet

This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

Restrict a value to a certain interval. Read more

Equality or records, as defined by RFC 2136, DNS Update, April 1997

  1.1.1. Two RRs are considered equal if their NAME, CLASS, TYPE,
  RDLENGTH and RDATA fields are equal.  Note that the time-to-live
  (TTL) field is explicitly excluded from the comparison.

  1.1.2. The rules for comparison of character strings in names are
  specified in [RFC1035 2.3.3]. i.e. case insensitive

This method tests for !=.

Canonical ordering as defined by RFC 4034, DNSSEC Resource Records, March 2005

6.2.  Canonical RR Form

   For the purposes of DNS security, the canonical form of an RR is the
   wire format of the RR where:

   1.  every domain name in the RR is fully expanded (no DNS name
       compression) and fully qualified;

   2.  all uppercase US-ASCII letters in the owner name of the RR are
       replaced by the corresponding lowercase US-ASCII letters;

   3.  if the type of the RR is NS, MD, MF, CNAME, SOA, MB, MG, MR, PTR,
       HINFO, MINFO, MX, HINFO, RP, AFSDB, RT, SIG, PX, NXT, NAPTR, KX,
       SRV, DNAME, A6, RRSIG, or NSEC, all uppercase US-ASCII letters in
       the DNS names contained within the RDATA are replaced by the
       corresponding lowercase US-ASCII letters;

   4.  if the owner name of the RR is a wildcard name, the owner name is
       in its original unexpanded form, including the "*" label (no
       wildcard substitution); and

   5.  the RR's TTL is set to its original value as it appears in the
       originating authoritative zone or the Original TTL field of the
       covering RRSIG RR.

This method tests less than (for self and other) and is used by the < operator. Read more

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

This method tests greater than (for self and other) and is used by the > operator. Read more

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.