diff --git a/api/gateway/tron/internal/service/gateway/tronclient/client.go b/api/gateway/tron/internal/service/gateway/tronclient/client.go index 576a7be5..93ebb6fc 100644 --- a/api/gateway/tron/internal/service/gateway/tronclient/client.go +++ b/api/gateway/tron/internal/service/gateway/tronclient/client.go @@ -72,8 +72,36 @@ func NewClient(grpcURL string, timeout time.Duration, authToken string, forceIPv } func grpcForceIPv4Dialer(ctx context.Context, address string) (net.Conn, error) { + host, port, err := net.SplitHostPort(address) + if err != nil { + return nil, err + } + + ips, err := net.DefaultResolver.LookupIP(ctx, "ip4", host) + if err != nil { + return nil, err + } + if len(ips) == 0 { + return nil, merrors.Internal(fmt.Sprintf("no IPv4 address found for %s", host)) + } + var dialer net.Dialer - return dialer.DialContext(ctx, "tcp4", address) + var lastErr error + for _, ip := range ips { + target := net.JoinHostPort(ip.String(), port) + conn, err := dialer.DialContext(ctx, "tcp4", target) + if err == nil { + return conn, nil + } + lastErr = err + if ctx.Err() != nil { + break + } + } + if lastErr != nil { + return nil, merrors.Internal(fmt.Sprintf("failed to dial any IPv4 address for %s: %v", host, lastErr)) + } + return nil, merrors.Internal(fmt.Sprintf("failed to dial IPv4 address for %s", host)) } func normalizeGRPCAddress(grpcURL string) (string, bool, error) {