Bell 32V development

Work on file usr/src/cmd/tty.c

Co-Authored-By: John Reiser <jfr@research.uucp>
Synthesized-from: 32v

diff --git a/usr/src/cmd/tty.c b/usr/src/cmd/tty.c
new file mode 100644 (file)
index 0000000..cedc61a
--- /dev/null
+++ b/usr/src/cmd/tty.c
@@ -0,0 +1,18 @@
+/*
+ * Type tty name
+ */
+
+char   *ttyname();
+
+main(argc, argv)
+char **argv;
+{
+       register char *p;
+
+       p = ttyname(0);
+       if(argc==2 && !strcmp(argv[1], "-s"))
+               ;
+       else
+               printf("%s\n", (p? p: "not a tty"));
+       exit(p? 0: 1);
+}