mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 13:30:06 +00:00
5a82c74822
Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
98 lines
3.1 KiB
C
98 lines
3.1 KiB
C
/* `struct termios' speed frobnication functions. Linux version.
|
|
Copyright (C) 1991-2019 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, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#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 (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 (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 (struct termios *termios_p, speed_t speed)
|
|
{
|
|
if ((speed & ~CBAUD) != 0
|
|
&& (speed < B57600 || speed > __MAX_BAUD))
|
|
return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
|
|
|
|
#if _HAVE_STRUCT_TERMIOS_C_OSPEED
|
|
termios_p->c_ospeed = speed;
|
|
#endif
|
|
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 (struct termios *termios_p, speed_t speed)
|
|
{
|
|
if ((speed & ~CBAUD) != 0
|
|
&& (speed < B57600 || speed > __MAX_BAUD))
|
|
return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
|
|
|
|
#if _HAVE_STRUCT_TERMIOS_C_ISPEED
|
|
termios_p->c_ispeed = speed;
|
|
#endif
|
|
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)
|