sock_stress: use URL path for svcID

This avoids the problem with `url.Parse` rejecting the non-integer port.

Signed-off-by: David Scott <[email protected]>

Author: djs55

Diff for: cmd/sock_stress/hvsock.go

@@ -28,25 +28,18 @@ func init() {
 // The format is "VMID:Service", "VMID", or ":Service" as well as an
 // empty string. For VMID we also support "parent" and assume
 // "loopback" if the string can't be parsed.
-func hvsockParseSockStr(sockStr string) hvsockAddr {
+func hvsockParseSockStr(vmStr, svcStr string) hvsockAddr {
 	hvAddr := hvsock.Addr{hvsock.GUIDZero, svcid}
 	port, _ := svcid.Port()
 	vAddr := vsock.Addr{vsock.CIDAny, port}
-	if sockStr == "" {
+	if svcStr != "" && svcStr[0] == '/' {
+		svcStr = svcStr[1:]
+	}
+	if vmStr == "" && svcStr == "" {
 		return hvsockAddr{hvAddr: hvAddr, vAddr: vAddr}
 	}
 
 	var err error
-	vmStr := ""
-	svcStr := ""
-	if strings.Contains(sockStr, ":") {
-		vmStr, svcStr, err = net.SplitHostPort(sockStr)
-		if err != nil {
-			log.Fatalf("Error parsing socket string '%s': %v", sockStr, err)
-		}
-	} else {
-		vmStr = sockStr
-	}
 
 	if vmStr != "" {
 		if strings.Contains(vmStr, "-") {

Diff for: cmd/sock_stress/main.go

@@ -99,6 +99,7 @@ func init() {
 		fmt.Printf("  %s -s vsock            Start server in vsock mode on standard port\n", prog)
 		fmt.Printf("  %s -s vsock://:1235    Start server in vsock mode on a non-standard port\n", prog)
 		fmt.Printf("  %s -c hvsock://<vmid>  Start client in hvsock mode connecting to VM with <vmid>\n", prog)
+		fmt.Printf("  %s -c hvsock://<vmid>/<svcid>  Start client in hvsock mode connecting to VM with <vmid> on a non-standard <svcid>\n", prog)
 	}
 	rand.Seed(time.Now().UnixNano())
 }
@@ -172,7 +173,7 @@ func parseSockStr(inStr string) (string, Sock) {
 	case "vsock":
 		return u.Scheme, vsockParseSockStr(u.Host)
 	case "hvsock":
-		return u.Scheme, hvsockParseSockStr(u.Host)
+		return u.Scheme, hvsockParseSockStr(u.Host, u.Path)
 	case "tcp", "tcp4", "tcp6":
 		return u.Scheme, tcpParseSockStr(u.Scheme, u.Host)
 	case "udp", "udp4", "udp6":