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48 lines
1.1 KiB
48 lines
1.1 KiB
package realm
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import (
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"fmt"
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"os"
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"github.com/miekg/dns"
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)
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// A Zone a container for records parsed from a zone file.
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type Zone struct {
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records []dns.RR
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}
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// ParseZone will attempt to parse a zone file from the provided filename and return a Zone.
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// ParseZone will return an error if the file provided does not exist or could not be properly parsed.
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func ParseZone(filename string) (*Zone, error) {
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var zone *Zone
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var err error
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zone = &Zone{
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records: make([]dns.RR, 0),
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}
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// Open the file
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var file *os.File
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file, err = os.Open(filename)
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if err != nil {
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return nil, fmt.Errorf("could not parse zone file \"%s\": \"%s\"", filename, err)
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}
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defer file.Close()
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// Parse the file into records
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var tokens chan *dns.Token
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tokens = dns.ParseZone(file, "", "")
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for token := range tokens {
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if token.Error != nil {
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return nil, fmt.Errorf("could not parse zone file \"%s\": \"%s\"", filename, token.Error)
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}
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zone.records = append(zone.records, token.RR)
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}
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return zone, nil
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}
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// Records will retrieve the DNS records for this zone
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func (zone *Zone) Records() []dns.RR {
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return zone.records
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}
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