/
parser_dnsmasq.go
46 lines (37 loc) · 1000 Bytes
/
parser_dnsmasq.go
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package main
// parse dnsmasq config file into a domain list
import (
"bufio"
"io"
"log"
"strings"
)
// generate a domain list from the following format:
// server=/example.com/114.114.114.114
// we are making a lot of assumptions here
func generateDomainListFromDnsmasqConfig(i io.Reader) []string {
var o []string
countSuccessLine := 0
countPrefixIncorrectLine := 0
countCannotSplit := 0
scanner := bufio.NewScanner(i)
for scanner.Scan() {
// normalize
line := strings.ToLower(strings.TrimSpace(scanner.Text()))
if !strings.HasPrefix(line, "server=/") {
countPrefixIncorrectLine += 1
log.Printf("PrefixIncorrect: %s\n", line)
continue
}
sp := strings.Split(line, "/")
if len(sp) < 3 {
countCannotSplit += 1
log.Printf("CannotSplit: %s\n", line)
continue
}
countSuccessLine += 1
o = append(o, sp[1])
}
log.Printf("Success: %d, PrefixIncorrect: %d, CannotSplit: %d\n", countSuccessLine, countPrefixIncorrectLine, countCannotSplit)
return o
}