From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: [PATCH] tty_ioctl: use termios for the old structure and termios2 for the new
Date: Tue, 07 Nov 2006 16:13:09 +0000 [thread overview]
Message-ID: <1162915989.11073.76.camel@localhost.localdomain> (raw)
Having split out the user and kernel structures it turns out that some
non glibc C libraries pull their termios struct from the kernel headers
directly or indirectly. This means we must keep "struct termios" as the
library sees it correct for the old ioctls. Not a big problem just
shuffle the names and ifdef around a bit
Signed-off-by: Alan Cox <alan@redhat.com>
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.19-rc4-mm1/drivers/char/tty_ioctl.c linux-2.6.19-rc4-mm1/drivers/char/tty_ioctl.c
--- linux.vanilla-2.6.19-rc4-mm1/drivers/char/tty_ioctl.c 2006-10-31 21:11:49.000000000 +0000
+++ linux-2.6.19-rc4-mm1/drivers/char/tty_ioctl.c 2006-11-07 10:05:02.000000000 +0000
@@ -408,14 +408,18 @@
} else if (opt & TERMIOS_OLD) {
memcpy(&tmp_termios, tty->termios, sizeof(struct termios));
if (user_termios_to_kernel_termios_1(&tmp_termios,
- (struct termios_v1 __user *)arg))
+ (struct termios __user *)arg))
return -EFAULT;
-#endif
} else {
if (user_termios_to_kernel_termios(&tmp_termios,
- (struct termios __user *)arg))
+ (struct termios2 __user *)arg))
return -EFAULT;
}
+#else
+ else if (user_termios_to_kernel_termios(&tmp_termios,
+ (struct termios __user *)arg))
+ return -EFAULT;
+#endif
/* If old style Bfoo values are used then load c_ispeed/c_ospeed with the real speed
so its unconditionally usable */
@@ -707,11 +711,11 @@
return 0;
#else
case TCGETS:
- if (kernel_termios_to_user_termios_1((struct termios_v1 __user *)arg, real_tty->termios))
+ if (kernel_termios_to_user_termios_1((struct termios __user *)arg, real_tty->termios))
return -EFAULT;
return 0;
case TCGETS2:
- if (kernel_termios_to_user_termios((struct termios __user *)arg, real_tty->termios))
+ if (kernel_termios_to_user_termios((struct termios2 __user *)arg, real_tty->termios))
return -EFAULT;
return 0;
case TCSETSF2:
reply other threads:[~2006-11-07 16:09 UTC|newest]
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