1 files changed, 80 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/tcsetattr.c b/REORG.TODO/sysdeps/unix/sysv/linux/tcsetattr.c
new file mode 100644
index 0000000000..c7d1d6539e
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/tcsetattr.c
@@ -0,0 +1,80 @@
+/* Copyright (C) 1993-2017 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <string.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sysdep.h>
+
+/* The difference here is that the termios structure used in the
+   kernel is not the same as we use in the libc.  Therefore we must
+   translate it here.  */
+#include <kernel_termios.h>
+
+
+/* This is a gross hack around a kernel bug.  If the cfsetispeed functions
+   is called with the SPEED argument set to zero this means use the same
+   speed as for output.  But we don't have independent input and output
+   speeds and therefore cannot record this.
+
+   We use an unused bit in the `c_iflag' field to keep track of this
+   use of `cfsetispeed'.  The value here must correspond to the one used
+   in `speed.c'.  */
+#define IBAUD0	020000000000
+
+
+/* Set the state of FD to *TERMIOS_P.  */
+int
+tcsetattr (int fd, int optional_actions, const struct termios *termios_p)
+{
+  struct __kernel_termios k_termios;
+  unsigned long int cmd;
+
+  switch (optional_actions)
+    {
+    case TCSANOW:
+      cmd = TCSETS;
+      break;
+    case TCSADRAIN:
+      cmd = TCSETSW;
+      break;
+    case TCSAFLUSH:
+      cmd = TCSETSF;
+      break;
+    default:
+      return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+    }
+
+  k_termios.c_iflag = termios_p->c_iflag & ~IBAUD0;
+  k_termios.c_oflag = termios_p->c_oflag;
+  k_termios.c_cflag = termios_p->c_cflag;
+  k_termios.c_lflag = termios_p->c_lflag;
+  k_termios.c_line = termios_p->c_line;
+#if defined _HAVE_C_ISPEED && defined _HAVE_STRUCT_TERMIOS_C_ISPEED
+  k_termios.c_ispeed = termios_p->c_ispeed;
+#endif
+#if defined _HAVE_C_OSPEED && defined _HAVE_STRUCT_TERMIOS_C_OSPEED
+  k_termios.c_ospeed = termios_p->c_ospeed;
+#endif
+  memcpy (&k_termios.c_cc[0], &termios_p->c_cc[0],
+	  __KERNEL_NCCS * sizeof (cc_t));
+
+  return INLINE_SYSCALL (ioctl, 3, fd, cmd, &k_termios);
+}
+libc_hidden_def (tcsetattr)