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Add ReadRR function

This commit is contained in:
Miek Gieben 2012-01-22 20:20:30 +01:00
parent d78647b17d
commit 0211c1663d
1 changed files with 16 additions and 14 deletions
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30
zscan.go
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@ -84,23 +84,25 @@ type Token struct {
Error *ParseError // when an error occured, this is the specifics
}
// NewRR parses the string s and returns the RR contained in there. If the string
// contains more than one RR, only the first is returned. If an error is detected
// that error is returned.
// If the class is not specified, the IN class is assumed. If the TTL is not
// specified DefaultTtl is assumed.
// NewRR reads the RR contained in the string s. Only the first RR is returned.
// The class defaults to IN and TTL defaults to DefaultTtl
func NewRR(s string) (RR, error) {
t := make(chan Token)
if s[len(s)-1] != '\n' { // We need a closing newline
t = ParseZone(strings.NewReader(s+"\n"), "")
} else {
t = ParseZone(strings.NewReader(s), "")
return ReadRR(strings.NewReader(s+"\n"), "")
}
r := <-t
if r.Error != nil {
return nil, r.Error
}
return r.RR, nil
return ReadRR(strings.NewReader(s), "")
}
// Ioreader here, or filename?? TODO
// ReadRR reads the RR contained in q. Only the first RR is returned.
// The class defaults to IN and TTL defaults to DefaultTtl
func ReadRR(q io.Reader, filename string) (RR, error) {
r := <-ParseZone(q, filename)
if r.Error != nil {
return nil, r.Error
}
return r.RR, nil
}
// ParseZone reads a RFC 1035 zone from r. It returns each parsed RR or on error