diff --git a/bash-5.1/r_execute_cmd/src/lib.rs b/bash-5.1/r_execute_cmd/src/lib.rs
index fe0106882d8b9d8bd2552a8c1d6a6b0cb77cc299..f0837893de9837515006e18ac220ed85911f76a1 100644
--- a/bash-5.1/r_execute_cmd/src/lib.rs
+++ b/bash-5.1/r_execute_cmd/src/lib.rs
@@ -1930,9 +1930,43 @@ pub unsafe extern "C" fn coproc_reap() {
     }
 }
 
+#[no_mangle]
+pub unsafe extern "C" fn coproc_rclose(mut cp: *mut coproc, mut fd: libc::c_int) {
+    if (*cp).c_rfd >= 0 && (*cp).c_rfd == fd {
+        close((*cp).c_rfd);
+        (*cp).c_rfd = -1;
+    }
+}
 
+#[no_mangle]
+pub unsafe extern "C" fn coproc_wclose(mut cp: *mut coproc, mut fd: libc::c_int) {
+    if (*cp).c_wfd >= 0 && (*cp).c_wfd == fd {
+        close((*cp).c_wfd);
+        (*cp).c_wfd = -1;
+    }
+}
 
 
+#[no_mangle]
+pub unsafe extern "C" fn coproc_checkfd(mut cp: *mut coproc, mut fd: libc::c_int) {
+    let mut update: libc::c_int = 0;
+
+    update = 0  ;
+    if (*cp).c_rfd >= 0  && (*cp).c_rfd == fd {
+        let ref mut fresh28 = (*cp).c_rfd;
+        (*cp).c_rfd = -1;
+        update = -1;
+    }
+    if (*cp).c_wfd >= 0 && (*cp).c_wfd == fd {
+        let ref mut fresh29 = (*cp).c_wfd;
+        (*cp).c_wfd = -1;
+        update = -1;
+    }
+    if update != 0 {
+        coproc_setvars(cp);
+    }
+}
+