feat: add --db flag to ipsw ent cmd

cmd/ipsw/cmd/ent.go

@@ -45,14 +45,15 @@ func init() {
 	rootCmd.AddCommand(entCmd)
 
 	entCmd.Flags().StringP("ent", "e", "", "Entitlement to search for")
+	entCmd.Flags().String("db", "", "Path to entitlement database to use")
 	entCmd.Flags().StringP("file", "f", "", "Output entitlements for file")
 }
 
 type Entitlements map[string]interface{}
 
 // entCmd represents the ent command
 var entCmd = &cobra.Command{
-	Use:          "ent",
+	Use:          "ent <IPSW>",
 	Short:        "Search IPSW filesystem DMG for MachOs with a given entitlement",
 	Args:         cobra.MinimumNArgs(1),
 	SilenceUsage: true,
@@ -65,6 +66,7 @@ var entCmd = &cobra.Command{
 		}
 
 		entitlement, _ := cmd.Flags().GetString("ent")
+		entDBPath, _ := cmd.Flags().GetString("db")
 		searchFile, _ := cmd.Flags().GetString("file")
 
 		if len(entitlement) == 0 && len(searchFile) == 0 {
@@ -76,7 +78,9 @@ var entCmd = &cobra.Command{
 		}
 
 		ipswPath := filepath.Clean(args[0])
-		entDBPath := strings.TrimSuffix(ipswPath, filepath.Ext(ipswPath)) + ".entDB"
+		if len(entDBPath) > 0 {
+			entDBPath = strings.TrimSuffix(ipswPath, filepath.Ext(ipswPath)) + ".entDB"
+		}
 
 		if _, err := os.Stat(entDBPath); os.IsNotExist(err) {
 			i, err := info.Parse(ipswPath)

docs/content/docs/commands/ent.md

@@ -100,3 +100,11 @@ Search IPSW filesystem DMG for MachOs with a given **file name** and dump it's e
 </dict>
 </plist>
 ```
+
+Use a previously created entitlements database
+
+```bash
+❯ ipsw ent iPhone11,8,iPhone12,1_14.5_18E5199a_Restore.ipsw --ent platform-application --db /tmp/IPSW.entDB
+```
+
+> **NOTE:** When you run the `ipsw ent` command on an **IPSW** it will auto-create **IPSW.entDB** next to the **IPSW** file and it will try and use that if you run it again on the same **IPSW**.