Fix termios handling. Now synced with behavior of GNU libc.

 -Erik

1 files changed, 67 insertions, 0 deletions

diff --git a/libc/termios/tcgetattr.c b/libc/termios/tcgetattr.c
new file mode 100644
index 000000000..957b5b0c1
--- /dev/null
+++ b/libc/termios/tcgetattr.c
@@ -0,0 +1,67 @@
+/* Copyright (C) 1992, 1995, 1997, 1998 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/types.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"
+
+/* Put the state of FD into *TERMIOS_P.  */
+int tcgetattr ( int fd, struct termios *termios_p)
+{
+  struct __kernel_termios k_termios;
+  int retval;
+
+  retval = ioctl (fd, TCGETS, &k_termios);
+
+  termios_p->c_iflag = k_termios.c_iflag;
+  termios_p->c_oflag = k_termios.c_oflag;
+  termios_p->c_cflag = k_termios.c_cflag;
+  termios_p->c_lflag = k_termios.c_lflag;
+  termios_p->c_line = k_termios.c_line;
+#ifdef _HAVE_C_ISPEED
+  termios_p->c_ispeed = k_termios.c_ispeed;
+#endif
+#ifdef _HAVE_C_OSPEED
+  termios_p->c_ospeed = k_termios.c_ospeed;
+#endif
+  if (sizeof (cc_t) == 1 || _POSIX_VDISABLE == 0
+      || (unsigned char) _POSIX_VDISABLE == (unsigned char) -1)
+    memset ( (memcpy (&termios_p->c_cc[0], &k_termios.c_cc[0],
+		       __KERNEL_NCCS * sizeof (cc_t)) + (__KERNEL_NCCS * sizeof (cc_t))) , 
+	    _POSIX_VDISABLE, (NCCS - __KERNEL_NCCS) * sizeof (cc_t));
+  else
+    {
+      size_t cnt;
+
+      memcpy (&termios_p->c_cc[0], &k_termios.c_cc[0],
+	      __KERNEL_NCCS * sizeof (cc_t));
+
+      for (cnt = __KERNEL_NCCS; cnt < NCCS; ++cnt)
+	termios_p->c_cc[cnt] = _POSIX_VDISABLE;
+    }
+
+  return retval;
+}
+