1 files changed, 103 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/speed.c b/sysdeps/unix/sysv/linux/speed.c
new file mode 100644
index 0000000000..84811deba6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/speed.c
@@ -0,0 +1,103 @@
+/* `struct termios' speed frobnication functions.  Linux version.
+Copyright (C) 1991, 1992, 1993, 1995 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <stddef.h>
+#include <errno.h>
+#include <termios.h>
+
+static const speed_t speeds[] =
+  {
+    0,
+    50,
+    75,
+    110,
+    134,
+    150,
+    200,
+    300,
+    600,
+    1200,
+    1800,
+    2400,
+    4800,
+    9600,
+    19200,
+    38400,
+    38400,		/* Mention this twice here is a trick.  */
+    57600,
+    115200,
+    230400,
+  };
+
+
+/* Return the output baud rate stored in *TERMIOS_P.  */
+speed_t
+cfgetospeed (termios_p)
+     const struct termios *termios_p;
+{
+  speed_t retval = termios_p->c_cflag & (CBAUD | CBAUDEX);
+
+  if (retval & CBAUDEX)
+    {
+      retval &= ~CBAUDEX;
+      retval |= CBAUD + 1;
+    }
+
+  return retval;
+}
+
+/* Return the input baud rate stored in *TERMIOS_P.
+   For Linux there is no difference between input and output speed.  */
+strong_alias (cfgetospeed, cfgetispeed);
+
+/* Set the output baud rate stored in *TERMIOS_P to SPEED.  */
+int
+cfsetospeed  (termios_p, speed) 
+     struct termios *termios_p;
+     speed_t speed;
+{
+  register unsigned int i;
+
+  if (termios_p == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  /* This allows either B1200 or 1200 to work.	XXX
+     Do we really want to try to support this, given that
+     fetching the speed must return one or the other?  */
+
+  for (i = 0; i < sizeof (speeds) / sizeof (speeds[0]); ++i)
+    if (i == speed || speeds[i] == speed)
+      {
+	termios_p->c_cflag &= ~(CBAUD | CBAUDEX);
+	termios_p->c_cflag |= (i & CBAUD);
+	if (i & ~CBAUD)
+	  termios_p->c_cflag |= CBAUDEX;
+	return 0;
+      }
+
+  errno = EINVAL;
+  return -1;
+}
+
+/* Set the input baud rate stored in *TERMIOS_P to SPEED.
+   For Linux there is no difference between input and output speed.  */
+strong_alias (cfsetospeed, cfsetispeed);