diff options
Diffstat (limited to 'vendor/github.com/miekg/dns/privaterr.go')
-rw-r--r-- | vendor/github.com/miekg/dns/privaterr.go | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/vendor/github.com/miekg/dns/privaterr.go b/vendor/github.com/miekg/dns/privaterr.go deleted file mode 100644 index 350ea5a47..000000000 --- a/vendor/github.com/miekg/dns/privaterr.go +++ /dev/null @@ -1,113 +0,0 @@ -package dns - -import "strings" - -// PrivateRdata is an interface used for implementing "Private Use" RR types, see -// RFC 6895. This allows one to experiment with new RR types, without requesting an -// official type code. Also see dns.PrivateHandle and dns.PrivateHandleRemove. -type PrivateRdata interface { - // String returns the text presentation of the Rdata of the Private RR. - String() string - // Parse parses the Rdata of the private RR. - Parse([]string) error - // Pack is used when packing a private RR into a buffer. - Pack([]byte) (int, error) - // Unpack is used when unpacking a private RR from a buffer. - Unpack([]byte) (int, error) - // Copy copies the Rdata into the PrivateRdata argument. - Copy(PrivateRdata) error - // Len returns the length in octets of the Rdata. - Len() int -} - -// PrivateRR represents an RR that uses a PrivateRdata user-defined type. -// It mocks normal RRs and implements dns.RR interface. -type PrivateRR struct { - Hdr RR_Header - Data PrivateRdata - - generator func() PrivateRdata // for copy -} - -// Header return the RR header of r. -func (r *PrivateRR) Header() *RR_Header { return &r.Hdr } - -func (r *PrivateRR) String() string { return r.Hdr.String() + r.Data.String() } - -// Private len and copy parts to satisfy RR interface. -func (r *PrivateRR) len(off int, compression map[string]struct{}) int { - l := r.Hdr.len(off, compression) - l += r.Data.Len() - return l -} - -func (r *PrivateRR) copy() RR { - // make new RR like this: - rr := &PrivateRR{r.Hdr, r.generator(), r.generator} - - if err := r.Data.Copy(rr.Data); err != nil { - panic("dns: got value that could not be used to copy Private rdata: " + err.Error()) - } - - return rr -} - -func (r *PrivateRR) pack(msg []byte, off int, compression compressionMap, compress bool) (int, error) { - n, err := r.Data.Pack(msg[off:]) - if err != nil { - return len(msg), err - } - off += n - return off, nil -} - -func (r *PrivateRR) unpack(msg []byte, off int) (int, error) { - off1, err := r.Data.Unpack(msg[off:]) - off += off1 - return off, err -} - -func (r *PrivateRR) parse(c *zlexer, origin string) *ParseError { - var l lex - text := make([]string, 0, 2) // could be 0..N elements, median is probably 1 -Fetch: - for { - // TODO(miek): we could also be returning _QUOTE, this might or might not - // be an issue (basically parsing TXT becomes hard) - switch l, _ = c.Next(); l.value { - case zNewline, zEOF: - break Fetch - case zString: - text = append(text, l.token) - } - } - - err := r.Data.Parse(text) - if err != nil { - return &ParseError{wrappedErr: err, lex: l} - } - - return nil -} - -func (r *PrivateRR) isDuplicate(r2 RR) bool { return false } - -// PrivateHandle registers a private resource record type. It requires -// string and numeric representation of private RR type and generator function as argument. -func PrivateHandle(rtypestr string, rtype uint16, generator func() PrivateRdata) { - rtypestr = strings.ToUpper(rtypestr) - - TypeToRR[rtype] = func() RR { return &PrivateRR{RR_Header{}, generator(), generator} } - TypeToString[rtype] = rtypestr - StringToType[rtypestr] = rtype -} - -// PrivateHandleRemove removes definitions required to support private RR type. -func PrivateHandleRemove(rtype uint16) { - rtypestr, ok := TypeToString[rtype] - if ok { - delete(TypeToRR, rtype) - delete(TypeToString, rtype) - delete(StringToType, rtypestr) - } -} |