Add rcsid. Remove unused #includes. Use err(3).

2 files changed, 34 insertions, 32 deletions

diff --git a/sbin/i386/comcontrol/comcontrol.8 b/sbin/i386/comcontrol/comcontrol.8
index 71dae45c61d9..ffd41de8a3a2 100644
--- a/sbin/i386/comcontrol/comcontrol.8
+++ b/sbin/i386/comcontrol/comcontrol.8
@@ -1,4 +1,4 @@
-.\"	$Id: comcontrol.8,v 1.12 1997/02/22 14:32:27 peter Exp $
+.\"	$Id: comcontrol.8,v 1.13 1998/03/19 07:46:39 charnier Exp $
 .Dd May 15, 1994
 .Dt COMCONTROL 8
 .Os FreeBSD
@@ -19,7 +19,7 @@ This usage requires only read access on the device.
 Only the superuser can change the settings.
 .Pp
 The following options are available:
-.Bl -tag -width Fl
+.Bl -tag -width indent
 .It Cm dtrwait Ar number
 Set the time to wait after dropping DTR
 to the given number.
@@ -27,8 +27,6 @@ The units are hundredths of a second.
 The default is 300 hundredths, i.e., 3 seconds.
 This option needed mainly to set proper recover time after
 modem reset.
-.El
-.Bl -tag -width Fl
 .It Cm drainwait Ar number
 Set the time to wait for output drain
 to the given number.
@@ -39,23 +37,23 @@ to prevent modem hanging.
 .El
 .Pp
 The standard way to use
-.Nm comcontrol
+.Nm
 is to put invocations of it in the
-.Ar /etc/rc.serial
+.Pa /etc/rc.serial
 startup script.
 .Sh SEE ALSO
 .Xr stty 1 ,
 .Xr sio 4
 .Sh FILES
-.Bl -tag -width Pa
+.Bl -tag -width /dev/ttyd? -compact
 .It Pa /dev/ttyd?
 dialin devices, hardwired terminals
 .It Pa /dev/cuaa?
-dialout devices.
+dialout devices
 .Sh AUTHORS
 .An Christopher G. Demetriou
 .Sh BUGS
-.Nm comcontrol
+.Nm Comcontrol
 should be named
 .Nm siocontrol .
 .Sh HISTORY
diff --git a/sbin/i386/comcontrol/comcontrol.c b/sbin/i386/comcontrol/comcontrol.c
index 17c288274f13..372f984409e4 100644
--- a/sbin/i386/comcontrol/comcontrol.c
+++ b/sbin/i386/comcontrol/comcontrol.c
@@ -26,79 +26,83 @@
  * SUCH DAMAGE.
  */
 
-/* comcontrol.c */
+#ifndef lint
+static const char rcsid[] =
+	"$Id$";
+#endif /* not lint */
 
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#include <stdio.h>
-#include <stdlib.h>
 #include <ctype.h>
+#include <err.h>
 #include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
 
-
-void usage(char *progname)
+static void
+usage()
 {
-	fprintf(stderr, "usage: %s <filename> [dtrwait <n>] [drainwait <n>]\n", progname);
+	fprintf(stderr,
+	"usage: comcontrol <filename> [dtrwait <n>] [drainwait <n>]\n");
 	exit(1);
 }
 
-int main(int argc, char *argv[])
+int
+main(int argc, char *argv[])
 {
 	int	fd;
 	int     res = 0;
 	int     dtrwait = -1, drainwait = -1;
 
 	if (argc < 2)
-		usage(argv[0]);
+		usage();
 
 	fd = open(argv[1], O_RDONLY|O_NONBLOCK, 0);
 	if (fd < 0) {
-		perror("open");
-		fprintf(stderr, "%s: couldn't open file %s\n", argv[0], argv[1]);
+		warn("couldn't open file %s", argv[1]);
 		return 1;
 	}
 
 	if (argc == 2) {
 		if (ioctl(fd, TIOCMGDTRWAIT, &dtrwait) < 0) {
 			res = 1;
-			perror("TIOCMGDTRWAIT");
+			warn("TIOCMGDTRWAIT");
 		}
 		if (ioctl(fd, TIOCGDRAINWAIT, &drainwait) < 0) {
 			res = 1;
-			perror("TIOCGDRAINWAIT");
+			warn("TIOCGDRAINWAIT");
 		}
 		printf("dtrwait %d drainwait %d\n", dtrwait, drainwait);
 	} else {
-		char *prg = argv[0];
-
 		while (argv[2] != NULL) {
 			if (!strcmp(argv[2],"dtrwait")) {
 				if (dtrwait >= 0)
-					usage(prg);
+					usage();
 				if (argv[3] == NULL || !isdigit(argv[3][0]))
-					usage(prg);
+					usage();
 				dtrwait = atoi(argv[3]);
 				argv += 2;
 			} else if (!strcmp(argv[2],"drainwait")) {
 				if (drainwait >= 0)
-					usage(prg);
+					usage();
 				if (argv[3] == NULL || !isdigit(argv[3][0]))
-					usage(prg);
+					usage();
 				drainwait = atoi(argv[3]);
 				argv += 2;
 			} else
-				usage(prg);
+				usage();
 		}
 		if (dtrwait >= 0) {
 			if (ioctl(fd, TIOCMSDTRWAIT, &dtrwait) < 0) {
 				res = 1;
-				perror("TIOCMSDTRWAIT");
+				warn("TIOCMSDTRWAIT");
 			}
 		}
 		if (drainwait >= 0) {
 			if (ioctl(fd, TIOCSDRAINWAIT, &drainwait) < 0) {
 				res = 1;
-				perror("TIOCSDRAINWAIT");
+				warn("TIOCSDRAINWAIT");
 			}
 		}
 	}