ksud: add is_safe_mode

userspace/ksud/src/utils.rs

@@ -1,6 +1,9 @@
-use std::path::Path;
+use std::{
+    path::Path,
+    process::{Command, Stdio},
+};
 
-use anyhow::{Result, ensure};
+use anyhow::{ensure, Result};
 use subprocess::Exec;
 
 pub fn mount_image(src: &str, target: &str) -> Result<()> {
@@ -22,3 +25,16 @@ pub fn ensure_clean_dir(dir: &str) -> Result<()> {
     }
     Ok(std::fs::create_dir_all(path)?)
 }
+
+pub fn getprop(prop: &str) -> Result<String> {
+    let output = Command::new("getprop")
+        .arg(prop)
+        .stdout(Stdio::piped())
+        .output()?;
+    let output = String::from_utf8_lossy(&output.stdout);
+    Ok(output.trim().to_string())
+}
+
+pub fn is_safe_mode() -> Result<bool> {
+    Ok(getprop("persist.sys.safemode")?.eq("1") || getprop("ro.sys.safemode")?.eq("1"))
+}