Fix temp file in Edit.go

Encryption/Edit.go

@@ -26,7 +26,11 @@ func EditEncryptedFile(password string, FilePath string) (error) {
     return errors.New("EDITOR variable cannot be blank")
   }
 
-	tmpFilePath = "/tmp/klsadjhflk"
+	tmpFilePath = os.Getenv("TMPDIR")
+  if tmpFilePath == "" {
+    tmpFilePath = "/tmp"
+  }
+
 	ciphertext, e = ioutil.ReadFile(FilePath)
 	if e != nil {
 		return e
@@ -40,7 +44,7 @@ func EditEncryptedFile(password string, FilePath string) (error) {
 		return e
 	}
 
-	tmpFile, e = os.Create(tmpFilePath)
+	tmpFile, e = ioutil.TempFile(tmpFilePath, "")
 	if e != nil {
 		return e
 	}
@@ -54,7 +58,7 @@ func EditEncryptedFile(password string, FilePath string) (error) {
     return e
   }
 
-  cmd = exec.Command(editor, tmpFilePath)
+  cmd = exec.Command(editor, tmpFile.Name())
   cmd.Stdout = os.Stdout
   cmd.Stdin = os.Stdin
   cmd.Stderr = os.Stderr
@@ -63,7 +67,7 @@ func EditEncryptedFile(password string, FilePath string) (error) {
     return e
   }
 
-	plaintext, e = ioutil.ReadFile(tmpFilePath)
+	plaintext, e = ioutil.ReadFile(tmpFile.Name())
 	if e != nil {
 		return e
 	}
@@ -80,7 +84,7 @@ func EditEncryptedFile(password string, FilePath string) (error) {
 
 	defer func() {
 		encryptedFile.Close()
-		SecureDelete(tmpFilePath)
+		SecureDelete(tmpFile.Name())
 	}()
 
 	_, e = io.Copy(encryptedFile, bytes.NewReader(ciphertext))