-static int popmail (char *mailbox, char *outfile, int preserve, char *password, int reverse_order);
-static int pop_retr (popserver server, int msgno, FILE *arg);
-static int mbx_write (char *line, int len, FILE *mbf);
-static int mbx_delimit_begin (FILE *mbf);
-static int mbx_delimit_end (FILE *mbf);
+static int popmail (char *, char *, bool, char *, bool);
+static bool pop_retr (popserver, int, FILE *);
+static bool mbx_write (char *, int, FILE *);
+static bool mbx_delimit_begin (FILE *);
+static bool mbx_delimit_end (FILE *);