summaryrefslogtreecommitdiff
path: root/sysdeps/unix/bsd/sun/sunos4/speed.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/bsd/sun/sunos4/speed.c')
-rw-r--r--sysdeps/unix/bsd/sun/sunos4/speed.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/sysdeps/unix/bsd/sun/sunos4/speed.c b/sysdeps/unix/bsd/sun/sunos4/speed.c
new file mode 100644
index 0000000000..262d70fdfb
--- /dev/null
+++ b/sysdeps/unix/bsd/sun/sunos4/speed.c
@@ -0,0 +1,118 @@
+/* `struct termios' speed frobnication functions. SunOS 4 version.
+ Copyright (C) 1991,1992,1993,1996,1997,2002 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 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,
+ };
+
+
+/* Return the output baud rate stored in *TERMIOS_P. */
+speed_t
+cfgetospeed (termios_p)
+ const struct termios *termios_p;
+{
+ return termios_p->c_cflag & CBAUD;
+}
+
+/* Return the input baud rate stored in *TERMIOS_P. */
+speed_t
+cfgetispeed (termios_p)
+ const struct termios *termios_p;
+{
+ return (termios_p->c_cflag & CIBAUD) >> IBSHIFT;
+}
+
+/* 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)
+ {
+ __set_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;
+ termios_p->c_cflag |= i;
+ return 0;
+ }
+
+ __set_errno (EINVAL);
+ return -1;
+}
+libc_hidden_def (cfsetospeed)
+
+/* Set the input baud rate stored in *TERMIOS_P to SPEED. */
+int
+cfsetispeed (termios_p, speed)
+ struct termios *termios_p;
+ speed_t speed;
+{
+ register unsigned int i;
+
+ if (termios_p == NULL)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ /* See comment in cfsetospeed (above). */
+ for (i = 0; i < sizeof (speeds) / sizeof (speeds[0]); ++i)
+ if (i == speed || speeds[i] == speed)
+ {
+ termios_p->c_cflag &= ~CIBAUD;
+ termios_p->c_cflag |= i << IBSHIFT;
+ return 0;
+ }
+
+ __set_errno (EINVAL);
+ return -1;
+}
+libc_hidden_def (cfsetispeed)