run file in env dir and pass env to new task

turntable/src/main.rs

@@ -124,7 +124,7 @@ fn lsdir(env: &Environment<'_>) {
     print("\n");
 }
 
-fn attempt_run_file(name: &str) {
+fn attempt_run_file(env: &Environment<'_>, name: &str) {
     print("\n");
     if name.len() > 11 {
         println("filename too long");
@@ -137,7 +137,7 @@ fn attempt_run_file(name: &str) {
         return;
     }
     let mut dir = DirectoryReader::empty();
-    if liblbos::ktask::ktask_fsopendir(&fs, &mut dir, b"/") != 0 {
+    if liblbos::ktask::ktask_fsopendir(&fs, &mut dir, env.current_directory_path) != 0 {
         println("failed to open dir");
         return;
     }
@@ -178,11 +178,17 @@ fn attempt_run_file(name: &str) {
     if liblbos::ktask::ktask_fsreadfile(&fs, &mut reader, unsafe { core::slice::from_raw_parts_mut(buf as *mut _, size) }) != 0 {
         println("failed to read file");
     }
+
+    let e = liblbos::Environment {
+        current_directory_path: CURRENT_DIR_PATH.load(Ordering::Relaxed) as usize,
+        current_directory_path_len: CURRENT_DIR_PATH_LEN.load(Ordering::Relaxed),
+    };
+
     let mut task_setup = liblbos::TaskSetup {
         epc: 0,
         ddi_first_addr: 0,
         ddi_size: 0,
-        environment: 0,
+        environment: &e as *const _ as usize,
         wait_for_task_exit: true,
     };
 
@@ -196,6 +202,10 @@ fn attempt_run_file(name: &str) {
 
     liblbos::syscalls::create_task(task_setup);
 
+    // yeah we're extending its lifetime
+    #[allow(clippy::drop_non_drop)]
+    drop(e);
+
     println("\ntask exited\n");
 }
 
@@ -223,7 +233,7 @@ fn execute(cmd: &str, environment: &mut Environment<'_>) {
                 }
             }
             _ => {
-                attempt_run_file(cmd);
+                attempt_run_file(environment, cmd);
             }
         }
     }