use GetRuntimeDir() from c/common

To prevent duplication and potential bugs we should use the same
GetRuntimeDir function that is used in c/common.

[NO NEW TESTS NEEDED]

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

pkg/util/utils.go

@@ -463,8 +463,6 @@ func ParseIDMapping(mode namespaces.UsernsMode, uidMapSlice, gidMapSlice []strin
 var (
 	rootlessConfigHomeDirOnce sync.Once
 	rootlessConfigHomeDir     string
-	rootlessRuntimeDirOnce    sync.Once
-	rootlessRuntimeDir        string
 )
 
 type tomlOptionsConfig struct {

pkg/util/utils_supported.go

@@ -6,67 +6,21 @@ package util
 //  should work to take darwin from this
 
 import (
-	"fmt"
 	"os"
 	"path/filepath"
 	"syscall"
 
+	cutil "github.com/containers/common/pkg/util"
 	"github.com/containers/podman/v4/pkg/rootless"
 	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
 )
 
 // GetRuntimeDir returns the runtime directory
 func GetRuntimeDir() (string, error) {
-	var rootlessRuntimeDirError error
-
 	if !rootless.IsRootless() {
 		return "", nil
 	}
-
-	rootlessRuntimeDirOnce.Do(func() {
-		runtimeDir := os.Getenv("XDG_RUNTIME_DIR")
-		uid := fmt.Sprintf("%d", rootless.GetRootlessUID())
-		if runtimeDir == "" {
-			tmpDir := filepath.Join("/run", "user", uid)
-			if err := os.MkdirAll(tmpDir, 0700); err != nil {
-				logrus.Debug(err)
-			}
-			st, err := os.Stat(tmpDir)
-			if err == nil && int(st.Sys().(*syscall.Stat_t).Uid) == os.Geteuid() && (st.Mode().Perm()&0700 == 0700) {
-				runtimeDir = tmpDir
-			}
-		}
-		if runtimeDir == "" {
-			tmpDir := filepath.Join(os.TempDir(), fmt.Sprintf("podman-run-%s", uid))
-			if err := os.MkdirAll(tmpDir, 0700); err != nil {
-				logrus.Debug(err)
-			}
-			st, err := os.Stat(tmpDir)
-			if err == nil && int(st.Sys().(*syscall.Stat_t).Uid) == os.Geteuid() && (st.Mode().Perm()&0700 == 0700) {
-				runtimeDir = tmpDir
-			}
-		}
-		if runtimeDir == "" {
-			home := os.Getenv("HOME")
-			if home == "" {
-				rootlessRuntimeDirError = fmt.Errorf("neither XDG_RUNTIME_DIR nor HOME was set non-empty")
-				return
-			}
-			resolvedHome, err := filepath.EvalSymlinks(home)
-			if err != nil {
-				rootlessRuntimeDirError = errors.Wrapf(err, "cannot resolve %s", home)
-				return
-			}
-			runtimeDir = filepath.Join(resolvedHome, "rundir")
-		}
-		rootlessRuntimeDir = runtimeDir
-	})
-
-	if rootlessRuntimeDirError != nil {
-		return "", rootlessRuntimeDirError
-	}
-	return rootlessRuntimeDir, nil
+	return cutil.GetRuntimeDir()
 }
 
 // GetRootlessConfigHomeDir returns the config home directory when running as non root