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authorRodney W. Grimes <rgrimes@FreeBSD.org>1993-06-12 14:58:17 +0000
committerRodney W. Grimes <rgrimes@FreeBSD.org>1993-06-12 14:58:17 +0000
commit5b81b6b301437eb9a6df491c829475bd29ae5d6c (patch)
treede2d7c6726a45428d4a310da2acd8839daf9f85f /sbin/comcontrol/comcontrol.c
parent9002c02abc587664acb357c6879d8ca08664dd0b (diff)
downloadsrc-5b81b6b301437eb9a6df491c829475bd29ae5d6c.tar.gz
src-5b81b6b301437eb9a6df491c829475bd29ae5d6c.zip
Initial import, 0.1 + pk 0.2.4-B1
Notes
Notes: svn path=/cvs2svn/branches/unlabeled-1.1.1/; revision=4
Diffstat (limited to 'sbin/comcontrol/comcontrol.c')
-rw-r--r--sbin/comcontrol/comcontrol.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/sbin/comcontrol/comcontrol.c b/sbin/comcontrol/comcontrol.c
new file mode 100644
index 000000000000..101d64ff4759
--- /dev/null
+++ b/sbin/comcontrol/comcontrol.c
@@ -0,0 +1,79 @@
+/*-
+ * Copyright (c) 1992 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. The name of the author may not be used to endorse or promote
+ * products derived from this software without specific 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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+/* comcontrol.c */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <stdio.h>
+#include <fcntl.h>
+
+
+void usage(char *progname)
+{
+ fprintf(stderr, "usage: %s <filename> [[-]bidir]\n", progname);
+ exit(1);
+}
+
+int main(int argc, char *argv[])
+{
+ int fd;
+ int res;
+
+ if ((argc < 2) || (argc > 3)) usage(argv[0]);
+
+ fd = open(argv[1], O_RDONLY|O_NONBLOCK, 0);
+ if (fd < 0) {
+ fprintf(stderr, "%s: couldn't open file %s\n", argv[0], argv[1]);
+ perror("open");
+ exit(1);
+ }
+
+ if (argc == 2) {
+ if (ioctl(fd, TIOCMGBIDIR, &res) < 0) {
+ perror("ioctl");
+ exit(1);
+ }
+ if (!res) printf("-");
+ printf("bidir\n");
+ } else {
+ if (!strcmp(argv[2],"bidir")) {
+ res = 1;
+ } else if (!strcmp(argv[2],"-bidir")) {
+ res = 0;
+ } else {
+ usage(argv[0]);
+ }
+ if (ioctl(fd, TIOCMSBIDIR, &res) < 0) {
+ perror("ioctl");
+ exit(1);
+ }
+ }
+
+ close(fd);
+}