/
config.go
62 lines (57 loc) · 1 KB
/
config.go
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package utils
import (
"fmt"
"net"
"strings"
)
type Config struct {
P string
B []string
}
func (c Config) Ports() []int {
var ports []int
var begin, end int
_, err := fmt.Sscanf(c.P, "%d-%d", &begin, &end)
if err == nil {
if begin < end {
for p := begin; p <= end; p++ {
ports = append(ports, p)
}
}
}
return ports
}
func (c Config) Bootstrap() []net.UDPAddr {
var udpaddrs []net.UDPAddr
for _, s := range c.B {
z := strings.SplitN(s, ":", 2)
if len(z) != 2 {
continue
}
host := z[0]
var begin, end uint16
_, err := fmt.Sscanf(z[1], "%d-%d", &begin, &end)
if err == nil && begin < end {
addrs, err := net.LookupIP(host)
if err == nil {
for _, a := range addrs {
for p := begin; p <= end; p++ {
addr := net.UDPAddr{
Port: int(p),
IP: a,
}
udpaddrs = append(udpaddrs, addr)
}
}
}
}
}
return udpaddrs
}
var DefaultConfig = Config{
P: "9200-9210",
B: []string{
"localhost:9200-9210",
"h2so5.net:9200-9210",
},
}