mirror of
https://sourceware.org/git/glibc.git
synced 2025-07-10 10:41:03 +03:00
eb35b0972f
* sysdeps/unix/sysv/linux/tcgetattr.c (__tcgetattr): Fill in c_ispeed and c_ospeed fields. * sysdeps/unix/sysv/linux/speed.c (cfsetospeed): Set c_ospeed field. (cfsetispeed): Set c_ispeed field. * sysdeps/unix/sysv/linux/tcsetattr.c (IBAUD0): Define unconditionally to match corresponding speed.c code. 2003-09-06 Ulrich Drepper <drepper@redhat.com> * libio/wfileops.c (_IO_wfile_underflow): Mark beginning of the narrow character buffer. * libio/Makefile: Add rules to build and run bug-ftell. * libio/bug-ftell.c: New file. * stdio-common/vfprintf.c: Don't use the first grouping number twice. * stdio-common/vfscanf.c (vfscanf): Fix recognition of characters matching the decimal point and possibly leading the thousands separator. This caused the recognition of thousands separators to always fail. 2003-09-05 Ulrich Drepper <drepper@redhat.com> * libio/fileops.c (_IO_new_file_overflow): Handle switching to write mode from read in backup buffer. * libio/Makefile (tests): Add bug-ungetc2. * libio/bug-ungetc2.c: New file. 2003-09-05 Roland McGrath <roland@redhat.com> >>>>>>> 1.7905 * sysdeps/unix/sysv/linux/linux_fsinfo.h: Define VXFS_SUPER_MAGIC.
108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
/* `struct termios' speed frobnication functions. Linux version.
|
|
Copyright (C) 1991,1992,1993,1995,1996,1997,1998,2000,2002,2003
|
|
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>
|
|
|
|
|
|
/* 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 `tcsetattr.c'. */
|
|
#define IBAUD0 020000000000
|
|
|
|
|
|
/* 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 | CBAUDEX);
|
|
}
|
|
|
|
/* Return the input baud rate stored in *TERMIOS_P.
|
|
Although for Linux there is no difference between input and output
|
|
speed, the numerical 0 is a special case for the input baud rate. It
|
|
should set the input baud rate to the output baud rate. */
|
|
speed_t
|
|
cfgetispeed (termios_p)
|
|
const struct termios *termios_p;
|
|
{
|
|
return ((termios_p->c_iflag & IBAUD0)
|
|
? 0 : termios_p->c_cflag & (CBAUD | CBAUDEX));
|
|
}
|
|
|
|
/* Set the output baud rate stored in *TERMIOS_P to SPEED. */
|
|
int
|
|
cfsetospeed (termios_p, speed)
|
|
struct termios *termios_p;
|
|
speed_t speed;
|
|
{
|
|
if ((speed & ~CBAUD) != 0
|
|
&& (speed < B57600 || speed > __MAX_BAUD))
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
termios_p->c_ospeed = speed;
|
|
termios_p->c_cflag &= ~(CBAUD | CBAUDEX);
|
|
termios_p->c_cflag |= speed;
|
|
|
|
return 0;
|
|
}
|
|
libc_hidden_def (cfsetospeed)
|
|
|
|
|
|
/* Set the input baud rate stored in *TERMIOS_P to SPEED.
|
|
Although for Linux there is no difference between input and output
|
|
speed, the numerical 0 is a special case for the input baud rate. It
|
|
should set the input baud rate to the output baud rate. */
|
|
int
|
|
cfsetispeed (termios_p, speed)
|
|
struct termios *termios_p;
|
|
speed_t speed;
|
|
{
|
|
if ((speed & ~CBAUD) != 0
|
|
&& (speed < B57600 || speed > __MAX_BAUD))
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
termios_p->c_ispeed = speed;
|
|
if (speed == 0)
|
|
termios_p->c_iflag |= IBAUD0;
|
|
else
|
|
{
|
|
termios_p->c_iflag &= ~IBAUD0;
|
|
termios_p->c_cflag &= ~(CBAUD | CBAUDEX);
|
|
termios_p->c_cflag |= speed;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
libc_hidden_def (cfsetispeed)
|