Make usr.sbin/cron/crontab and usr.sbin/cron/lib WARNS=3 clean

Tested with: make universe

MFC after:	3 days

6 files changed, 20 insertions, 23 deletions

diff --git a/usr.sbin/cron/cron/cron.h b/usr.sbin/cron/cron/cron.h
index e58cd85..38eb33b 100644
--- a/usr.sbin/cron/cron/cron.h
+++ b/usr.sbin/cron/cron/cron.h
@@ -221,6 +221,7 @@ int		job_runqueue(void),
 		get_char(FILE *),
 		get_string(char *, int, FILE *, char *),
 		swap_uids(void),
+		swap_uids_back(void),
 		load_env(char *, FILE *),
 		cron_pclose(FILE *),
 		strcmp_until(char *, char *, int),
@@ -238,7 +239,7 @@ char		*env_get(char *, char **),
 user		*load_user(int, struct passwd *, char *),
 		*find_user(cron_db *, char *);
 
-entry		*load_entry(FILE *, void (*)(),
+entry		*load_entry(FILE *, void (*)(char *),
 				 struct passwd *, char **);
 
 FILE		*cron_popen(char *, char *, entry *);
diff --git a/usr.sbin/cron/crontab/Makefile b/usr.sbin/cron/crontab/Makefile
index 6b9486d..d136fb2 100644
--- a/usr.sbin/cron/crontab/Makefile
+++ b/usr.sbin/cron/crontab/Makefile
@@ -8,6 +8,8 @@ BINOWN=	root
 BINMODE=4555
 PRECIOUSPROG=
 
+WARNS=3
+
 CFLAGS+= -I${.CURDIR}/../cron
 
 DPADD=	${LIBCRON} ${LIBMD} ${LIBUTIL}
diff --git a/usr.sbin/cron/crontab/crontab.c b/usr.sbin/cron/crontab/crontab.c
index dcb5e34..79d26e4 100644
--- a/usr.sbin/cron/crontab/crontab.c
+++ b/usr.sbin/cron/crontab/crontab.c
@@ -73,8 +73,7 @@ static	int		replace_cmd(void);
 
 
 static void
-usage(msg)
-	char *msg;
+usage(char *msg)
 {
 	fprintf(stderr, "crontab: usage error: %s\n", msg);
 	fprintf(stderr, "%s\n%s\n",
@@ -85,9 +84,7 @@ usage(msg)
 
 
 int
-main(argc, argv)
-	int	argc;
-	char	*argv[];
+main(int argc, char *argv[])
 {
 	int	exitstatus;
 
@@ -219,7 +216,7 @@ parse_args(argc, argv)
 				err(ERROR_EXIT, "swapping uids");
 			if (!(NewCrontab = fopen(Filename, "r")))
 				err(ERROR_EXIT, "%s", Filename);
-			if (swap_uids() < OK)
+			if (swap_uids_back() < OK)
 				err(ERROR_EXIT, "swapping uids back");
 		}
 	}
@@ -414,14 +411,14 @@ edit_cmd() {
 
 	/* parent */
 	{
-	void (*f[4])();
-	f[0] = signal(SIGHUP, SIG_IGN);
-	f[1] = signal(SIGINT, SIG_IGN);
-	f[2] = signal(SIGTERM, SIG_IGN);
+	void (*sig[3])(int signal);
+	sig[0] = signal(SIGHUP, SIG_IGN);
+	sig[1] = signal(SIGINT, SIG_IGN);
+	sig[2] = signal(SIGTERM, SIG_IGN);
 	xpid = wait(&waiter);
-	signal(SIGHUP, f[0]);
-	signal(SIGINT, f[1]);
-	signal(SIGTERM, f[2]);
+	signal(SIGHUP, sig[0]);
+	signal(SIGINT, sig[1]);
+	signal(SIGTERM, sig[2]);
 	}
 	if (xpid != pid) {
 		warnx("wrong PID (%d != %d) from \"%s\"", xpid, pid, editor);
@@ -498,7 +495,6 @@ replace_cmd() {
 	entry	*e;
 	time_t	now = time(NULL);
 	char	**envp = env_init();
-	void (*f[3])();
 
 	if (envp == NULL) {
 		warnx("cannot allocate memory");
diff --git a/usr.sbin/cron/lib/Makefile b/usr.sbin/cron/lib/Makefile
index 296ebd0..5d8dcb8 100644
--- a/usr.sbin/cron/lib/Makefile
+++ b/usr.sbin/cron/lib/Makefile
@@ -4,6 +4,8 @@ LIB=	cron
 INTERNALLIB=
 SRCS= entry.c env.c misc.c
 
+WARNS = 3
+
 CFLAGS+= -I${.CURDIR}/../cron
 CFLAGS+= -DLOGIN_CAP -DPAM
 
diff --git a/usr.sbin/cron/lib/entry.c b/usr.sbin/cron/lib/entry.c
index df88905..b6be69c 100644
--- a/usr.sbin/cron/lib/entry.c
+++ b/usr.sbin/cron/lib/entry.c
@@ -87,7 +87,7 @@ free_entry(e)
 entry *
 load_entry(file, error_func, pw, envp)
 	FILE		*file;
-	void		(*error_func)();
+	void		(*error_func)(char *);
 	struct passwd	*pw;
 	char		**envp;
 {
diff --git a/usr.sbin/cron/lib/misc.c b/usr.sbin/cron/lib/misc.c
index e557afc..d56c03d 100644
--- a/usr.sbin/cron/lib/misc.c
+++ b/usr.sbin/cron/lib/misc.c
@@ -48,6 +48,7 @@ static const char rcsid[] =
 
 
 static int		LogFD = ERR;
+void mkprint(register char*, register unsigned char*, register int);
 
 
 int
@@ -324,9 +325,7 @@ skip_comments(file)
  *	FALSE otherwise.
  */
 static int
-in_file(string, file)
-	char *string;
-	FILE *file;
+in_file(char *string, FILE *file)
 {
 	char line[MAX_TEMPSTR];
 
@@ -521,10 +520,7 @@ first_word(s, t)
  *	heavily ascii-dependent.
  */
 void
-mkprint(dst, src, len)
-	register char *dst;
-	register unsigned char *src;
-	register int len;
+mkprint(register char *dst, register unsigned char *src, register int len)
 {
 	while (len-- > 0)
 	{