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fix parsing of IP addresses for zeroconf initialization #1338

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merged 1 commit into from Feb 21, 2022
Merged

fix parsing of IP addresses for zeroconf initialization #1338

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17 changes: 6 additions & 11 deletions p2p/discovery/mdns/mdns.go
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Expand Up @@ -5,7 +5,6 @@ import (
"errors"
"io"
"math/rand"
"net"
"strings"
"sync"

Expand Down Expand Up @@ -86,18 +85,14 @@ func (s *mdnsService) Close() error {
func (s *mdnsService) getIPs(addrs []ma.Multiaddr) ([]string, error) {
var ip4, ip6 string
for _, addr := range addrs {
network, hostport, err := manet.DialArgs(addr)
if err != nil {
first, _ := ma.SplitFirst(addr)
if first == nil {
continue
}
host, _, err := net.SplitHostPort(hostport)
if err != nil {
continue
}
if ip4 == "" && (network == "udp4" || network == "tcp4") {
ip4 = host
} else if ip6 == "" && (network == "udp6" || network == "tcp6") {
ip6 = host
if ip4 == "" && first.Protocol().Code == ma.P_IP4 {
ip4 = first.Value()
} else if ip6 == "" && first.Protocol().Code == ma.P_IP6 {
ip6 = first.Value()
}
}
ips := make([]string, 0, 2)
Expand Down