diff -uNr at-3.2.1/perm.c at-3.2.1.mod/perm.c
--- at-3.2.1/perm.c	2019-08-04 15:16:16.000000000 +0300
+++ at-3.2.1.mod/perm.c	2020-01-02 20:33:14.107959511 +0200
@@ -108,28 +108,7 @@
 int
 check_permission()
 {
-  uid_t uid = geteuid();
-  struct passwd *pentry;
-  int    allow = 0, deny = 1;
-
-  if (uid == 0)
-    return 1;
-
-  if ((pentry = getpwuid(uid)) == NULL) {
-    perror("Cannot access user database");
-    exit(EXIT_FAILURE);
-  }
-
-  allow = user_in_file(ETCDIR "/at.allow", pentry->pw_name);
-  if (allow==0 || allow==1)
-    return allow;
-
-  /* There was an error while looking for pw_name in at.allow.
-   * Check at.deny only when at.allow doesn't exist.
-   */
- 
-  deny = user_in_file(ETCDIR "/at.deny", pentry->pw_name);
-  return deny == 0;
+  return 1;
 }