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-rw-r--r--libc/stdio/ctermid.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/libc/stdio/ctermid.c b/libc/stdio/ctermid.c
new file mode 100644
index 000000000..004b8fecf
--- /dev/null
+++ b/libc/stdio/ctermid.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 1991, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <stdio.h>
+#include <string.h>
+
+
+/* Return the name of the controlling terminal.
+ If S is not NULL, the name is copied into it (it should be at
+ least L_ctermid bytes long), otherwise a static buffer is used. */
+char *
+ctermid (s)
+ char *s;
+{
+ static char name[L_ctermid];
+
+ if (s == NULL)
+ s = name;
+
+ return strcpy (s, "/dev/tty");
+}