ResolveAddrWithContext resolves a hostname and returns an AddrPort. DNS traffic may or may not be routed depending on VirtualTun's setting
(ctx context.Context, name string)
| 76 | // ResolveAddrWithContext resolves a hostname and returns an AddrPort. |
| 77 | // DNS traffic may or may not be routed depending on VirtualTun's setting |
| 78 | func (d VirtualTun) ResolveAddrWithContext(ctx context.Context, name string) (*netip.Addr, error) { |
| 79 | addrs, err := d.LookupAddr(ctx, name) |
| 80 | if err != nil { |
| 81 | return nil, err |
| 82 | } |
| 83 | |
| 84 | addrs_v4 := []netip.Addr{} |
| 85 | addrs_v6 := []netip.Addr{} |
| 86 | |
| 87 | for _, saddr := range addrs { |
| 88 | addr, err := netip.ParseAddr(saddr) |
| 89 | if err == nil { |
| 90 | if addr.Is4() { |
| 91 | addrs_v4 = append(addrs_v4, addr) |
| 92 | } else if addr.Is6() { |
| 93 | addrs_v6 = append(addrs_v6, addr) |
| 94 | } |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | rand.Shuffle(len(addrs_v4), func(i, j int) { |
| 99 | addrs_v4[i], addrs_v4[j] = addrs_v4[j], addrs_v4[i] |
| 100 | }) |
| 101 | rand.Shuffle(len(addrs_v6), func(i, j int) { |
| 102 | addrs_v6[i], addrs_v6[j] = addrs_v6[j], addrs_v6[i] |
| 103 | }) |
| 104 | |
| 105 | addrs_all := []netip.Addr{} |
| 106 | |
| 107 | switch d.ResolveConfig.ResolveStrategy { |
| 108 | case "ipv4": |
| 109 | addrs_all = append(addrs_v4, addrs_v6...) |
| 110 | case "ipv6": |
| 111 | addrs_all = append(addrs_v6, addrs_v4...) |
| 112 | } |
| 113 | |
| 114 | if len(addrs_all) == 0 { |
| 115 | return nil, errors.New("no address found for: " + name) |
| 116 | } |
| 117 | |
| 118 | return &addrs_all[0], nil |
| 119 | } |
| 120 | |
| 121 | // Resolve resolves a hostname and returns an IP. |
| 122 | // DNS traffic may or may not be routed depending on VirtualTun's setting |
no test coverage detected