V8.13.384.2025.11.06

Signed-off-by: Marc S. Weidner <msw@coresecret.dev>

lib/lib_guard_sourcing.sh

@@ -11,12 +11,12 @@
 # SPDX-Security-Contact: security@coresecret.eu
 
 #######################################
-# Prevent the caller LIB-file from being sourced twice.
+# Prevents the caller LIB-file from being sourced twice.
 # Derive a safe guard-variable name from the caller script filename.
 # Globals:
 #   BASH_SOURCE
 # Arguments:
-#   $1: Explicitly provided Argument: filename of the caller LIB. (Better let the guard_sourcing() determine dynamically.)
+#   1: Explicitly provided Argument: filename of the caller LIB. (Better let the guard_sourcing() determine dynamically.)
 # Returns:
 #   0: Returns '0' in both cases as they are intended to be successful.
 #######################################
@@ -37,6 +37,10 @@ guard_sourcing() {
 
   ### Mark as loaded (readonly + exported)
   declare -grx "${var_guard_var}"=1
+
   return 0
 }
+### Prevents accidental 'unset -f'.
+# shellcheck disable=SC2034
+readonly -f guard_sourcing
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh