const'ify conffile

From: Joerg Sonnenberger <joerg@britannica.bec.de>

src/usr.sbin/ntpd/ntpd.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: ntpd.c,v 1.23 2004/11/04 23:04:22 henning Exp $ */
+/*	$OpenBSD: ntpd.c,v 1.24 2004/11/10 11:27:54 henning Exp $ */
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -81,7 +81,7 @@ main(int argc, char *argv[])
 	struct ntpd_conf	 conf;
 	struct pollfd		 pfd[POLL_MAX];
 	pid_t			 chld_pid = 0, pid;
-	char			*conffile;
+	const char		*conffile;
 	int			 ch, nfds, timeout = INFTIM;
 	int			 pipe_chld[2];
 

src/usr.sbin/ntpd/ntpd.h

@@ -1,4 +1,4 @@
-/*	$OpenBSD: ntpd.h,v 1.41 2004/10/22 21:17:37 henning Exp $ */
+/*	$OpenBSD: ntpd.h,v 1.42 2004/11/10 11:27:54 henning Exp $ */
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -210,7 +210,7 @@ void	 ntp_settime(double);
 void	 ntp_host_dns(char *, u_int32_t);
 
 /* parse.y */
-int	 parse_config(char *, struct ntpd_conf *);
+int	 parse_config(const char *, struct ntpd_conf *);
 
 /* config.c */
 int		 host(const char *, struct ntp_addr **);

src/usr.sbin/ntpd/parse.y

@@ -1,4 +1,4 @@
-/*	$OpenBSD: parse.y,v 1.22 2004/11/05 14:28:29 henning Exp $ */
+/*	$OpenBSD: parse.y,v 1.23 2004/11/10 11:27:54 henning Exp $ */
 
 /*
  * Copyright (c) 2002, 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -39,7 +39,7 @@ static struct ntpd_conf		*conf;
 static FILE			*fin = NULL;
 static int			 lineno = 1;
 static int			 errors = 0;
-char				*infile;
+const char			*infile;
 
 int	 yyerror(const char *, ...);
 int	 yyparse(void);
@@ -399,7 +399,7 @@ yylex(void)
 }
 
 int
-parse_config(char *filename, struct ntpd_conf *xconf)
+parse_config(const char *filename, struct ntpd_conf *xconf)
 {
 	conf = xconf;
 	lineno = 1;