-void ASCII_to_EBCDIC(guint8 *buf, guint bytes);
-guint8 ASCII_to_EBCDIC1(guint8 c);
-void EBCDIC_to_ASCII(guint8 *buf, guint bytes);
-guint8 EBCDIC_to_ASCII1(guint8 c);
-
-#ifdef HAVE_LIBPCAP
-
-GList *get_interface_list(int *err, char *err_str);
-
-/* Error values from "get_interface_list()". */
-#define CANT_GET_INTERFACE_LIST 0 /* error getting list */
-#define NO_INTERFACES_FOUND 1 /* list is empty */
+/*
+ * Collect command-line arguments as a string consisting of the arguments,
+ * separated by spaces.
+ */
+char *get_args_as_string(int, char **, int);