initial import of NetBSD tree

1 files changed, 217 insertions, 0 deletions

diff --git a/sbin/ttyflags/ttyflags.c b/sbin/ttyflags/ttyflags.c
new file mode 100644
index 00000000000..2d38d891b76
--- /dev/null
+++ b/sbin/ttyflags/ttyflags.c
@@ -0,0 +1,217 @@
+/*	$NetBSD: ttyflags.c,v 1.6 1995/08/13 05:24:03 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1994 Christopher G. Demetriou
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Christopher G. Demetriou.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1994 Christopher G. Demetriou\n\
+	All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char rcsid[] = "$NetBSD: ttyflags.c,v 1.6 1995/08/13 05:24:03 cgd Exp $";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <sys/ioctl.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <paths.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ttyent.h>
+#include <unistd.h>
+
+int change_all __P((void));
+int change_ttyflags __P((struct ttyent *));
+int change_ttys __P((char **));
+void usage __P((void));
+
+int nflag, vflag;
+
+/*
+ * Ttyflags sets the device-specific tty flags, based on the contents
+ * of /etc/ttys.  It can either set all of the ttys' flags, or set
+ * the flags of the ttys specified on the command line.
+ */
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	int aflag, ch, rval;
+
+	aflag = nflag = vflag = 0;
+	while ((ch = getopt(argc, argv, "anv")) != EOF)
+		switch (ch) {
+		case 'a':
+			aflag = 1;
+			break;
+		case 'n':		/* undocumented */
+			nflag = 1;
+			break;
+		case 'v':
+			vflag = 1;
+			break;
+		case '?':
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	if (aflag && argc != 0)
+		usage();
+
+	rval = 0;
+
+	if (setttyent() == 0)
+		err(1, "setttyent");
+
+	if (aflag)
+		rval = change_all();
+	else
+		rval = change_ttys(argv);
+
+	if (endttyent() == 0)
+		warn("endttyent");
+
+	exit(rval);
+}
+
+/*
+ * Change all /etc/ttys entries' flags.
+ */
+int
+change_all()
+{
+	struct ttyent *tep;
+	int rval;
+
+	rval = 0;
+	for (tep = getttyent(); tep != NULL; tep = getttyent())
+		if (change_ttyflags(tep))
+			rval = 1;
+	return (rval);
+}
+
+/*
+ * Change the specified ttys' flags.
+ */
+int
+change_ttys(ttylist)
+	char **ttylist;
+{
+	struct ttyent *tep;
+	int rval;
+
+	rval = 0;
+	for (; *ttylist != NULL; ttylist++) {
+		tep = getttynam(*ttylist);
+		if (tep == NULL) {
+			warnx("couldn't find an entry in %s for \"%s\"",
+			    _PATH_TTYS, *ttylist);
+			rval = 1;
+			continue;
+		}
+
+		if (change_ttyflags(tep))
+			rval = 1;
+	}
+	return (rval);
+}
+
+/*
+ * Acutually do the work; find out what the new flags value should be,
+ * open the device, and change the flags.
+ */
+int
+change_ttyflags(tep)
+	struct ttyent *tep;
+{
+	int fd, flags, rval, st;
+	char path[PATH_MAX];
+
+	st = tep->ty_status;
+	flags = rval = 0;
+
+	/* Convert ttyent.h flags into ioctl flags. */
+	if (st & TTY_LOCAL)
+		flags |= TIOCFLAG_CLOCAL;
+	if (st & TTY_RTSCTS)
+		flags |= TIOCFLAG_CRTSCTS;
+	if (st & TTY_SOFTCAR)
+		flags |= TIOCFLAG_SOFTCAR;
+	if (st & TTY_MDMBUF)
+		flags |= TIOCFLAG_MDMBUF;
+
+	/* Find the full device path name. */
+	(void)snprintf(path, sizeof path, "%s%s", _PATH_DEV, tep->ty_name);
+
+	if (vflag)
+		warnx("setting flags on %s to %0x", path, flags);
+	if (nflag)
+		return (0);
+
+	/* Open the device NON-BLOCKING, set the flags, and close it. */
+	if ((fd = open(path, O_RDONLY | O_NONBLOCK, 0)) == -1) {
+		if (!(errno == ENXIO ||
+		      (errno == ENOENT && (st & TTY_ON) == 0)))
+			rval = 1;
+		if (rval || vflag)
+			warn("open %s", path);
+		return (rval);
+	}
+	if (ioctl(fd, TIOCSFLAGS, &flags) == -1)
+		if (errno != ENOTTY || vflag) {
+			warn("TIOCSFLAGS on %s", path);
+			rval = (errno != ENOTTY);
+		}
+	if (close(fd) == -1) {
+		warn("close %s", path);
+		return (1);
+	}
+	return (rval);
+}
+
+/*
+ * Print usage information when a bogus set of arguments is given.
+ */
+void
+usage()
+{
+	(void)fprintf(stderr, "usage: ttyflags [-v] [-a | tty ... ]\n");
+	exit(1);
+}