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* 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.
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Copyright (C) 1991,1992,1993,1995,1996,1997,1998,2000,2002,2003
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <stddef.h>
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#include <errno.h>
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#include <termios.h>
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/* This is a gross hack around a kernel bug. If the cfsetispeed functions
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is called with the SPEED argument set to zero this means use the same
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speed as for output. But we don't have independent input and output
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speeds and therefore cannot record this.
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We use an unused bit in the `c_iflag' field to keep track of this
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use of `cfsetispeed'. The value here must correspond to the one used
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in `tcsetattr.c'. */
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#define IBAUD0 020000000000
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/* Return the output baud rate stored in *TERMIOS_P. */
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speed_t
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cfgetospeed (termios_p)
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const struct termios *termios_p;
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{
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return termios_p->c_cflag & (CBAUD | CBAUDEX);
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}
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/* Return the input baud rate stored in *TERMIOS_P.
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Although for Linux there is no difference between input and output
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speed, the numerical 0 is a special case for the input baud rate. It
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should set the input baud rate to the output baud rate. */
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speed_t
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cfgetispeed (termios_p)
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const struct termios *termios_p;
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{
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return ((termios_p->c_iflag & IBAUD0)
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? 0 : termios_p->c_cflag & (CBAUD | CBAUDEX));
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}
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/* Set the output baud rate stored in *TERMIOS_P to SPEED. */
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int
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cfsetospeed (termios_p, speed)
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struct termios *termios_p;
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speed_t speed;
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{
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if ((speed & ~CBAUD) != 0
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&& (speed < B57600 || speed > __MAX_BAUD))
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{
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__set_errno (EINVAL);
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return -1;
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}
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termios_p->c_ospeed = speed;
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termios_p->c_cflag &= ~(CBAUD | CBAUDEX);
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termios_p->c_cflag |= speed;
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return 0;
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}
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libc_hidden_def (cfsetospeed)
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/* Set the input baud rate stored in *TERMIOS_P to SPEED.
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Although for Linux there is no difference between input and output
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speed, the numerical 0 is a special case for the input baud rate. It
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should set the input baud rate to the output baud rate. */
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int
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cfsetispeed (termios_p, speed)
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struct termios *termios_p;
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speed_t speed;
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{
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if ((speed & ~CBAUD) != 0
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&& (speed < B57600 || speed > __MAX_BAUD))
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{
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__set_errno (EINVAL);
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return -1;
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}
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termios_p->c_ispeed = speed;
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if (speed == 0)
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termios_p->c_iflag |= IBAUD0;
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else
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{
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termios_p->c_iflag &= ~IBAUD0;
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termios_p->c_cflag &= ~(CBAUD | CBAUDEX);
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termios_p->c_cflag |= speed;
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}
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return 0;
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}
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libc_hidden_def (cfsetispeed)
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