Append zero at the end of inherited_fds automatically

contracts/spawn-caller-by-code-hash/src/entry.rs

@@ -12,7 +12,7 @@ pub fn main() -> Result<(), Error> {
         CStr::from_bytes_with_nul(b"world\0").unwrap(),
     ];
     let mut std_fds: [u64; 2] = [0, 0];
-    let mut son_fds: [u64; 3] = [0, 0, 0];
+    let mut son_fds: [u64; 2] = [0, 0];
     let (r0, w0) = syscalls::pipe()?;
     std_fds[0] = r0;
     son_fds[1] = w0;

src/high_level.rs

@@ -700,6 +700,8 @@ pub fn spawn_cell(
     argv: &[&CStr],
     inherited_fds: &[u64],
 ) -> Result<u64, SysError> {
+    let mut inherited_fds = Vec::from(inherited_fds);
+    inherited_fds.push(0);
     #[cfg(not(feature = "native-simulator"))]
     {
         let index = look_for_dep_with_hash2(code_hash, hash_type)?;
@@ -716,7 +718,7 @@ pub fn spawn_cell(
         Ok(process_id)
     }
     #[cfg(feature = "native-simulator")]
-    syscalls::spawn_cell(code_hash, hash_type, argv, inherited_fds)
+    syscalls::spawn_cell(code_hash, hash_type, argv, &inherited_fds)
 }
 
 /// Get inherited file descriptors.

src/syscalls/simulator.rs

@@ -266,6 +266,8 @@ pub fn spawn_cell(
     argv: &[&CStr],
     inherited_fds: &[u64],
 ) -> Result<u64, SysError> {
+    let mut inherited_fds = Vec::from(inherited_fds);
+    inherited_fds.push(0);
     let argc = argv.len();
     let mut argv_vec: alloc::vec::Vec<*const u8> =
         argv.iter().map(|e| e.as_ptr() as *const u8).collect();