Check return size

Author: bet4it

src/gdbstub_impl/ext/exec_file.rs

@@ -24,7 +24,8 @@ impl<T: Target, C: Connection> GdbStubImpl<T, C> {
                     res.write_str("l")?;
                 } else {
                     res.write_str("m")?;
-                    res.write_binary(&cmd.buf[..ret])?;
+                    // TODO: add more specific error variant?
+                    res.write_binary(cmd.buf.get(..ret).ok_or(Error::PacketBufferOverflow)?)?;
                 }
                 HandlerStatus::Handled
             }

src/protocol/commands.rs

@@ -225,7 +225,7 @@ commands! {
         "qXfer:memory-map:read" => _qXfer_memory_map::qXferMemoryMapRead,
     }
 
-    exec_file use 'a{
+    exec_file use 'a {
         "qXfer:exec-file:read" => _qXfer_exec_file::qXferExecFileRead<'a>,
     }