Add bindings for backup_info() as well

bindings/c-ffi/src/lib.rs

@@ -63,6 +63,11 @@ pub extern "C" fn rgblib_backup(
     backup(wallet, backup_path, password).into()
 }
 
+#[no_mangle]
+pub extern "C" fn rgblib_backup_info(wallet: &COpaqueStruct) -> CResultString {
+    backup_info(wallet).into()
+}
+
 #[no_mangle]
 pub extern "C" fn rgblib_blind_receive(
     wallet: &COpaqueStruct,

bindings/c-ffi/src/utils.rs

@@ -106,6 +106,24 @@ where
     }
 }
 
+impl From<Result<bool, Error>> for CResultString
+where
+    Error: std::fmt::Debug,
+{
+    fn from(other: Result<bool, Error>) -> Self {
+        match other {
+            Ok(d) => CResultString {
+                result: CResultValue::Ok,
+                inner: string_to_ptr(d.to_string()),
+            },
+            Err(e) => CResultString {
+                result: CResultValue::Err,
+                inner: string_to_ptr(format!("{:?}", e)),
+            },
+        }
+    }
+}
+
 fn convert_strings_array<T: FromStr>(ptr: *const c_char) -> Result<Vec<T>, Error> {
     let str_array: Vec<String> = serde_json::from_str(&ptr_to_string(ptr))?;
     str_array
@@ -178,6 +196,12 @@ pub(crate) fn backup(
     Ok(res)
 }
 
+pub(crate) fn backup_info(wallet: &COpaqueStruct) -> Result<bool, Error> {
+    let wallet = Wallet::from_opaque(wallet)?;
+    let res = wallet.backup_info()?;
+    Ok(res)
+}
+
 pub(crate) fn blind_receive(
     wallet: &COpaqueStruct,
     asset_id_opt: *const c_char,