Update copyright notices with scripts/update-copyrights

[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / tcsetattr.c

diff --git a/sysdeps/unix/sysv/linux/tcsetattr.c b/sysdeps/unix/sysv/linux/tcsetattr.c
index 031cad7add1e5616e344767c5db47f327b7c998b..4b0bcf7f4f58b9dd7772fb7fd84e535589510368 100644 (file)
--- a/sysdeps/unix/sysv/linux/tcsetattr.c
+++ b/sysdeps/unix/sysv/linux/tcsetattr.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 1996, 1997, 1998, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1993-2014 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
@@ -12,15 +12,15 @@
    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.  */
+   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
@@ -36,14 +36,7 @@
    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'.  */
-#if !defined _HAVE_C_ISPEED || !defined _HAVE_C_OSPEED
-# define IBAUD0        020000000000
-#else
-/* If we have separate values for input and output speed don't bother
-   with this.  Define the value as zero so the compiler sees we don't
-   have to do the AND below.  */
-# define IBAUD0        0
-#endif
+#define IBAUD0 020000000000
 
 
 /* Set the state of FD to *TERMIOS_P.  */
@@ -55,7 +48,6 @@ tcsetattr (fd, optional_actions, termios_p)
 {
   struct __kernel_termios k_termios;
   unsigned long int cmd;
-  int retval;
 
   switch (optional_actions)
     {
@@ -78,44 +70,15 @@ tcsetattr (fd, optional_actions, termios_p)
   k_termios.c_cflag = termios_p->c_cflag;
   k_termios.c_lflag = termios_p->c_lflag;
   k_termios.c_line = termios_p->c_line;
-#ifdef _HAVE_C_ISPEED
+#if defined _HAVE_C_ISPEED && defined _HAVE_STRUCT_TERMIOS_C_ISPEED
   k_termios.c_ispeed = termios_p->c_ispeed;
 #endif
-#ifdef _HAVE_C_OSPEED
+#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));
 
-  retval = __ioctl (fd, cmd, &k_termios);
-
-  if (retval == 0 && cmd == TCSETS)
-    {
-      /* The Linux kernel has a bug which silently ignore the invalid
-        c_cflag on pty. We have to check it here. */
-      int save = errno;
-      retval = __ioctl (fd, TCGETS, &k_termios);
-      if (retval)
-       {
-         /* We cannot verify if the setting is ok. We don't return
-            an error (?). */
-         __set_errno (save);
-         retval = 0;
-       }
-      else if ((termios_p->c_cflag & (PARENB | CREAD))
-              != (k_termios.c_cflag & (PARENB | CREAD))
-              || ((termios_p->c_cflag & CSIZE)
-                  && ((termios_p->c_cflag & CSIZE)
-                      != (k_termios.c_cflag & CSIZE))))
-       {
-         /* It looks like the Linux kernel silently changed the
-            PARENB/CREAD/CSIZE bits in c_cflag. Report it as an
-            error. */
-         __set_errno (EINVAL);
-         retval = -1;
-       }
-    }
-
-  return retval;
+  return INLINE_SYSCALL (ioctl, 3, fd, cmd, &k_termios);
 }
 libc_hidden_def (tcsetattr)