Ensure directory exists for socket connection and Makefile additions.

.gitignore

@@ -28,6 +28,7 @@ pkg/visor/foo/
 /*.json
 /*.sh
 /*.log
+dmsgpty
 
 # Ignore backup go.mod after running '/ci_scripts/go_mod_replace.sh'.
 go.mod-e

Makefile

@@ -104,7 +104,6 @@ bin: ## Build `skywire-visor`, `skywire-cli`, `hypervisor`, `SSH-cli`
 	${OPTS} go build ${BUILD_OPTS} -o ./SSH-cli ./cmd/therealssh-cli
 	${OPTS} go build ${BUILD_OPTS} -o ./dmsgpty ./cmd/dmsgpty
 
-
 release: ## Build `skywire-visor`, `skywire-cli`, `hypervisor`, `SSH-cli` and apps without -race flag
 	${OPTS} go build -o ./skywire-visor ./cmd/skywire-visor
 	${OPTS} go build -o ./skywire-cli  ./cmd/skywire-cli

pkg/dmsgpty/host.go

@@ -7,6 +7,7 @@ import (
 	"net"
 	"net/rpc"
 	"os"
+	"path/filepath"
 	"sync"
 	"sync/atomic"
 
@@ -126,6 +127,12 @@ func NewHostFromDmsgClient(
 	if err != nil {
 		return nil, err
 	}
+	// Ensure directory exists for socket file (if unix connection).
+	if cliNet == "unix" {
+		if err := ensureDir(cliAddr); err != nil {
+			return nil, err
+		}
+	}
 	cliL, err := net.Listen(cliNet, cliAddr)
 	if err != nil {
 		return nil, err
@@ -293,3 +300,7 @@ func (h *Host) cleanup() {
 			Debug("deleted unix file")
 	}
 }
+
+func ensureDir(path string) error {
+	return os.MkdirAll(filepath.Dir(path), os.FileMode(0700))
+}