* The ISO C2Y family of unsigned abs functions, i.e.
uabs, ulabs, ullabs and uimaxabs, are now supported.
+* On Linux, the <termios.h> interface now supports arbitrary baud rates;
+ speed_t is redefined to simply be the baud rate specified as an
+ unsigned int, which matches the kernel interface.
+
Deprecated and removed features, and other changes affecting compatibility:
* The glibc.rtld.execstack now supports a compatibility mode to allow
sched_getattr;
sched_setattr;
}
+ GLIBC_2.42 {
+ cfgetospeed;
+ cfgetispeed;
+ cfsetospeed;
+ cfsetispeed;
+ cfsetspeed;
+ }
GLIBC_PRIVATE {
# functions used in other libraries
__syscall_rt_sigqueueinfo;
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
#ifdef __USE_MISC
# define ADDRB 04000000000
+# define CMSPAR 010000000000 /* Mark or space (stick) parity. */
+# define CRTSCTS 020000000000 /* Flow control. */
#endif
<https://www.gnu.org/licenses/>. */
#ifndef _TERMIOS_H
-# error "Never include <bits/termios-baud.h> directly; use <termios.h> instead."
+# error "Never include <bits/termios-cbaud.h> directly; use <termios.h> instead."
#endif
#ifdef __USE_MISC
-# define CBAUD 0000037
-# define CBAUDEX 0000000
-# define CMSPAR 010000000000 /* mark or space (stick) parity */
-# define CRTSCTS 020000000000 /* flow control */
+# define CBAUD 000000037
+# define CBAUDEX 000000000
+# define CIBAUD 007600000
+# define IBSHIFT 16
#endif
-#define B57600 00020
-#define B115200 00021
-#define B230400 00022
-#define B460800 00023
-#define B500000 00024
-#define B576000 00025
-#define B921600 00026
-#define B1000000 00027
-#define B1152000 00030
-#define B1500000 00031
-#define B2000000 00032
-#define B2500000 00033
-#define B3000000 00034
-#define B3500000 00035
-#define B4000000 00036
-
-#define __MAX_BAUD B4000000
+#define __B57600 00020
+#define __B115200 00021
+#define __B230400 00022
+#define __B460800 00023
+#define __B500000 00024
+#define __B576000 00025
+#define __B921600 00026
+#define __B1000000 00027
+#define __B1152000 00030
+#define __B1500000 00031
+#define __B2000000 00032
+#define __B2500000 00033
+#define __B3000000 00034
+#define __B3500000 00035
+#define __B4000000 00036
+#define __BOTHER 00037
#undef __ASSUME_CLONE3
#define __ASSUME_CLONE3 0
+/* Alpha did not provide BOTHER, CIBAUD or the termios2 ioctls until
+ kernel 4.20. Even though struct __kernel_termios and struct
+ termios2 are the same on Alpha, Calling the legacy TCSETS* ioctls
+ with BOTHER set triggers a bug in these old kernels, so only use
+ the legacy TCSETS* ioctl numbers if neither BOTHER nor split speed is
+ needed; that way the code will fail gracefully. */
+#if __LINUX_KERNEL_VERSION < 0x041400
+# undef __ASSUME_TERMIOS2
+# define __ASSUME_TERMIOS2 0
+#endif
+
#endif /* _KERNEL_FEATURES_H */
+++ /dev/null
-/* Copyright (C) 1997-2025 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/>. */
-
-#ifndef _KERNEL_TERMIOS_H
-#define _KERNEL_TERMIOS_H 1
-
-/* The following corresponds to the values from the Linux 2.1.20 kernel. */
-
-/* We need the definition of tcflag_t, cc_t, and speed_t. */
-#include <termios.h>
-
-#define __KERNEL_NCCS 19
-
-struct __kernel_termios
- {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_cc[__KERNEL_NCCS]; /* control characters */
- cc_t c_line; /* line discipline */
- speed_t c_ispeed; /* input speed */
- speed_t c_ospeed; /* output speed */
- };
-
-#define _HAVE_C_ISPEED 1
-#define _HAVE_C_OSPEED 1
-
-#endif /* kernel_termios.h */
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
-/* struct termios definition. Linux/mips version.
- Copyright (C) 2019-2025 Free Software Foundation, Inc.
+/* Architectural parameters for Linux termios - Alpha/PowerPC version
+
+ Copyright (C) 1997-2025 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
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
+ License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#ifndef _TERMIOS_H
-# error "Never include <bits/termios-struct.h> directly; use <termios.h> instead."
+#ifndef TERMIOS_INTERNALS_H
+# error "<termios_arch.h> should only be included from <termios_internals.h>"
#endif
-#define NCCS 32
-struct termios
- {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_line; /* line discipline */
- cc_t c_cc[NCCS]; /* control characters */
-#define _HAVE_STRUCT_TERMIOS_C_ISPEED 0
-#define _HAVE_STRUCT_TERMIOS_C_OSPEED 0
- };
+#define _TERMIOS2_NCCS 19
+#define _HAVE_TERMIOS2_C_CC_BEFORE_C_LINE 1
+#define _HAVE_STRUCT_OLD_TERMIOS 0
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
# error "Never include <bits/termios-baud.h> directly; use <termios.h> instead."
#endif
-#ifdef __USE_MISC
-# define CBAUD 000000010017 /* Baud speed mask (not in POSIX). */
-# define CBAUDEX 000000010000 /* Extra baud speed mask, included in CBAUD.
- (not in POSIX). */
-# define CIBAUD 002003600000 /* Input baud rate (not used). */
-# define CMSPAR 010000000000 /* Mark or space (stick) parity. */
-# define CRTSCTS 020000000000 /* Flow control. */
-#endif
+#define B0 0U
+#define B50 50U
+#define B75 75U
+#define B110 110U
+#define B134 134U
+#define B150 150U
+#define B200 200U
+#define B300 300U
+#define B600 600U
+#define B1200 1200U
+#define B1800 1800U
+#define B2400 2400U
+#define B4800 4800U
+#define B7200 7200U
+#define B9600 9600U
+#define B14400 14400U
+#define B19200 19200U
+#define B28800 28800U
+#define B33600 33600U
+#define B38400 38400U
+#define B57600 57600U
+#define B76800 76800U
+#define B115200 115200U
+#define B153600 153600U
+#define B230400 230400U
+#define B307200 307200U
+#define B460800 460800U
+#define B500000 500000U
+#define B576000 576000U
+#define B614400 614400U
+#define B921600 921600U
+#define B1000000 1000000U
+#define B1152000 1152000U
+#define B1500000 1500000U
+#define B2000000 2000000U
+#define B2500000 2500000U
+#define B3000000 3000000U
+#define B3500000 3500000U
+#define B4000000 4000000U
-/* Extra output baud rates (not in POSIX). */
-#define B57600 0010001
-#define B115200 0010002
-#define B230400 0010003
-#define B460800 0010004
-#define B500000 0010005
-#define B576000 0010006
-#define B921600 0010007
-#define B1000000 0010010
-#define B1152000 0010011
-#define B1500000 0010012
-#define B2000000 0010013
-#define B2500000 0010014
-#define B3000000 0010015
-#define B3500000 0010016
-#define B4000000 0010017
-#define __MAX_BAUD B4000000
+#define __MAX_BAUD 4294967295U
#define CLOCAL 0004000
#ifdef __USE_MISC
-# define ADDRB 04000000000
+# define ADDRB 04000000000
+# define CMSPAR 010000000000 /* Mark or space (stick) parity. */
+# define CRTSCTS 020000000000 /* Flow control. */
#endif
--- /dev/null
+/* termios baud rate selection definitions. Linux/generic version.
+ Copyright (C) 2019-2025 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/>. */
+
+#ifndef _TERMIOS_H
+# error "Never include <bits/termios-cbaud.h> directly; use <termios.h> instead."
+#endif
+
+#ifdef __USE_MISC
+# define CBAUD 000000010017 /* Baud speed mask (not in POSIX). */
+# define CBAUDEX 000000010000 /* Extra baud speed mask, included in CBAUD.
+ (not in POSIX). */
+# define CIBAUD 002003600000 /* Input baud rate. */
+# define IBSHIFT 16
+#endif
+
+/* Extra output baud rates (not in POSIX). */
+#define __BOTHER 0010000
+#define __B57600 0010001
+#define __B115200 0010002
+#define __B230400 0010003
+#define __B460800 0010004
+#define __B500000 0010005
+#define __B576000 0010006
+#define __B921600 0010007
+#define __B1000000 0010010
+#define __B1152000 0010011
+#define __B1500000 0010012
+#define __B2000000 0010013
+#define __B2500000 0010014
+#define __B3000000 0010015
+#define __B3500000 0010016
+#define __B4000000 0010017
typedef unsigned int speed_t;
typedef unsigned int tcflag_t;
-#include <bits/termios-struct.h>
+#ifdef _TERMIOS_H
+# include <bits/termios-struct.h>
+#endif
+
#include <bits/termios-c_cc.h>
#include <bits/termios-c_iflag.h>
#include <bits/termios-c_oflag.h>
/* c_cflag bit meaning */
-#define B0 0000000 /* hang up */
-#define B50 0000001
-#define B75 0000002
-#define B110 0000003
-#define B134 0000004
-#define B150 0000005
-#define B200 0000006
-#define B300 0000007
-#define B600 0000010
-#define B1200 0000011
-#define B1800 0000012
-#define B2400 0000013
-#define B4800 0000014
-#define B9600 0000015
-#define B19200 0000016
-#define B38400 0000017
+#include <bits/termios-c_cflag.h>
+
+#define __B0 0000000 /* hang up */
+#define __B50 0000001
+#define __B75 0000002
+#define __B110 0000003
+#define __B134 0000004
+#define __B150 0000005
+#define __B200 0000006
+#define __B300 0000007
+#define __B600 0000010
+#define __B1200 0000011
+#define __B1800 0000012
+#define __B2400 0000013
+#define __B4800 0000014
+#define __B9600 0000015
+#define __B19200 0000016
+#define __B38400 0000017
+#include <bits/termios-cbaud.h>
+
#ifdef __USE_MISC
-# define EXTA B19200
-# define EXTB B38400
+# define EXTA __B19200
+# define EXTB __B38400
+# define BOTHER __BOTHER
#endif
-#include <bits/termios-baud.h>
-#include <bits/termios-c_cflag.h>
#include <bits/termios-c_lflag.h>
#ifdef __USE_MISC
#include <bits/termios-tcflow.h>
#include <bits/termios-misc.h>
+
+#include <bits/termios-baud.h>
--- /dev/null
+/* cfsetspeed(), Linux version.
+ Copyright (C) 1991-2025 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 <termios_internals.h>
+
+/* Set both the input and output baud rates stored in *TERMIOS_P to SPEED. */
+int
+__cfsetspeed (struct termios *termios_p, speed_t speed)
+{
+ tcflag_t cbaud = ___speed_to_cbaud (speed);
+
+ termios_p->c_ospeed = speed;
+ termios_p->c_ispeed = speed;
+ termios_p->c_cflag &= ~(CBAUD | CIBAUD);
+ termios_p->c_cflag |= cbaud | (cbaud << IBSHIFT);
+
+ return 0;
+}
+versioned_symbol (libc, __cfsetspeed, cfsetspeed, GLIBC_2_42);
+
+#if _TERMIOS_OLD_COMPAT
+
+int
+attribute_compat_text_section
+__old_cfsetspeed (old_termios_t *termios_p, speed_t speed)
+{
+ speed_t real_speed = ___cbaud_to_speed (speed, -1);
+ if (real_speed == (speed_t)-1)
+ return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+
+#if !_HAVE_STRUCT_OLD_TERMIOS
+ /* Otherwise these fields don't exist in old_termios_t */
+ termios_p->c_ospeed = real_speed;
+ termios_p->c_ispeed = real_speed;
+#endif
+ termios_p->c_cflag &= ~(CBAUD | CIBAUD);
+ termios_p->c_cflag |= speed | (speed << IBSHIFT);
+
+ return 0;
+}
+compat_symbol (libc, __old_cfsetspeed, cfsetspeed, GLIBC_2_0);
+
+#endif /* _TERMIOS_OLD_COMPAT */
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
--- /dev/null
+/* Test whether a file descriptor refers to a terminal. Linux version.
+ Copyright (C) 1991-2025 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 <termios_internals.h>
+
+/* Return 1 if FD is a terminal, 0 if not. This simply does a
+ TCGETS2 ioctl into a dummy buffer without parsing the result. */
+int
+__isatty (int fd)
+{
+ struct termios2 k_termios;
+ return INLINE_SYSCALL_CALL (ioctl, fd, TCGETS2, &k_termios) == 0;
+}
+weak_alias (__isatty, isatty)
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <sysdep.h>
-#include <termios.h>
-#include <kernel_termios.h>
-#include <sys/ioctl.h>
+#include <termios_internals.h>
/* Return 1 if FD is a terminal, 0 if not, without changing errno */
int
__isatty_nostatus (int fd)
{
- struct __kernel_termios k_termios;
- return INTERNAL_SYSCALL_CALL (ioctl, fd, TCGETS, &k_termios) == 0;
+ struct termios2 k_termios;
+ return INTERNAL_SYSCALL_CALL (ioctl, fd, TCGETS2, &k_termios) == 0;
}
configurations). */
#define __ASSUME_SET_ROBUST_LIST 1
+/* The termios2 interface was introduced across all architectures except
+ Alpha in kernel 2.6.22. */
+#define __ASSUME_TERMIOS2 1
+
/* Support for various CLOEXEC and NONBLOCK flags was added in
2.6.27. */
#define __ASSUME_IN_NONBLOCK 1
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
pthread_attr_setstack;
pthread_attr_setstacksize;
}
+ GLIBC_2.42 {
+ tcgetattr;
+ tcsetattr;
+ }
GLIBC_PRIVATE {
# nptl/pthread_cond_timedwait.c uses INTERNAL_VSYSCALL(clock_gettime).
__vdso_clock_gettime;
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
+GLIBC_2.42 tcgetattr F
+GLIBC_2.42 tcsetattr F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.42 ulabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
+GLIBC_2.42 tcgetattr F
+GLIBC_2.42 tcsetattr F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.42 ulabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
+GLIBC_2.42 tcgetattr F
+GLIBC_2.42 tcsetattr F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.42 ulabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
+GLIBC_2.42 tcgetattr F
+GLIBC_2.42 tcsetattr F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.42 ulabs F
-/* Copyright (C) 1997-2025 Free Software Foundation, Inc.
+/* Architectural parameters for Linux termios - MIPS version
+
+ Copyright (C) 1991-2025 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
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#ifndef _KERNEL_TERMIOS_H
-#define _KERNEL_TERMIOS_H 1
-/* The following corresponds to the values from the Linux 2.1.20 kernel. */
-
-#define __KERNEL_NCCS 19
-
-struct __kernel_termios
- {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_line; /* line discipline */
- cc_t c_cc[__KERNEL_NCCS]; /* control characters */
- };
-
-#define _HAVE_C_ISPEED 0
-#define _HAVE_C_OSPEED 0
-
-#endif /* kernel_termios.h */
+#define _TERMIOS2_NCCS 23
+#define _HAVE_TERMIOS2_C_CC_BEFORE_C_LINE 0
+
+#define _HAVE_STRUCT_OLD_TERMIOS 1
+
+#define OLD_NCCS 32
+struct old_termios
+{
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+ cc_t c_line; /* line discipline */
+ cc_t c_cc[OLD_NCCS]; /* control characters */
+};
--- /dev/null
+/* old_termios.h for Linux other than MIPS and SPARC
+
+ Copyright (C) 2025 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/>. */
+
+/* By default, no old termios structure */
+#define _HAVE_STRUCT_OLD_TERMIOS 0
+#define OLD_NCCS NCCS
+typedef struct termios old_termios_t;
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
#define CLOCAL 00100000
#ifdef __USE_MISC
-# define ADDRB 04000000000
+# define ADDRB 04000000000
+# define CMSPAR 010000000000 /* Mark or space (stick) parity. */
+# define CRTSCTS 020000000000 /* Flow control. */
#endif
<https://www.gnu.org/licenses/>. */
#ifndef _TERMIOS_H
-# error "Never include <bits/termios-baud.h> directly; use <termios.h> instead."
+# error "Never include <bits/termios-cbaud.h> directly; use <termios.h> instead."
#endif
#ifdef __USE_MISC
-# define CBAUD 0000377
-# define CBAUDEX 0000020
-# define CMSPAR 010000000000 /* mark or space (stick) parity */
-# define CRTSCTS 020000000000 /* flow control */
+# define CBAUD 000000377
+# define CBAUDEX 000000020
+# define CIBAUD 077600000
+# define IBSHIFT 16
#endif
-#define B57600 00020
-#define B115200 00021
-#define B230400 00022
-#define B460800 00023
-#define B500000 00024
-#define B576000 00025
-#define B921600 00026
-#define B1000000 00027
-#define B1152000 00030
-#define B1500000 00031
-#define B2000000 00032
-#define B2500000 00033
-#define B3000000 00034
-#define B3500000 00035
-#define B4000000 00036
-#define __MAX_BAUD B4000000
+#define __B57600 00020
+#define __B115200 00021
+#define __B230400 00022
+#define __B460800 00023
+#define __B500000 00024
+#define __B576000 00025
+#define __B921600 00026
+#define __B1000000 00027
+#define __B1152000 00030
+#define __B1500000 00031
+#define __B2000000 00032
+#define __B2500000 00033
+#define __B3000000 00034
+#define __B3500000 00035
+#define __B4000000 00036
+#define __BOTHER 00037
+++ /dev/null
-/* Copyright (C) 1997-2025 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/>. */
-
-#ifndef _KERNEL_TERMIOS_H
-#define _KERNEL_TERMIOS_H 1
-
-/* We need the definition of tcflag_t, cc_t, and speed_t. */
-#include <termios.h>
-
-#define __KERNEL_NCCS 19
-
-struct __kernel_termios
- {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_cc[__KERNEL_NCCS]; /* control characters */
- cc_t c_line; /* line discipline */
- speed_t c_ispeed; /* input speed */
- speed_t c_ospeed; /* output speed */
- };
-
-#define _HAVE_C_ISPEED 1
-#define _HAVE_C_OSPEED 1
-
-/* We have the kernel termios structure, so we can presume this code knows
- what it's doing... */
-
-#undef TCGETS
-#undef TCSETS
-#undef TCSETSW
-#undef TCSETSF
-#define TCGETS _IOR ('t', 19, struct __kernel_termios)
-#define TCSETS _IOW ('t', 20, struct __kernel_termios)
-#define TCSETSW _IOW ('t', 21, struct __kernel_termios)
-#define TCSETSF _IOW ('t', 22, struct __kernel_termios)
-
-#endif /* kernel_termios.h */
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
-/* struct termios definition. Linux/sparc version.
- Copyright (C) 2019-2025 Free Software Foundation, Inc.
+/* Architectural parameters for Linux termios - Alpha/PowerPC version
+
+ Copyright (C) 1997-2025 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
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
+ License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#ifndef _TERMIOS_H
-# error "Never include <bits/termios-struct.h> directly; use <termios.h> instead."
+#ifndef TERMIOS_INTERNALS_H
+# error "<termios_arch.h> should only be included from <termios_internals.h>"
#endif
-#define NCCS 17
-struct termios
- {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_line; /* line discipline */
- cc_t c_cc[NCCS]; /* control characters */
-#define _HAVE_STRUCT_TERMIOS_C_ISPEED 0
-#define _HAVE_STRUCT_TERMIOS_C_OSPEED 0
- };
+#define _TERMIOS2_NCCS 19
+#define _HAVE_TERMIOS2_C_CC_BEFORE_C_LINE 1
+#define _HAVE_STRUCT_OLD_TERMIOS 0
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
__getshmlba;
}
+ GLIBC_2.42 {
+ tcgetattr;
+ tcsetattr;
+ }
GLIBC_PRIVATE {
# nptl/pthread_cond_timedwait.c uses INTERNAL_VSYSCALL(clock_gettime).
__vdso_clock_gettime;
<https://www.gnu.org/licenses/>. */
#ifndef _TERMIOS_H
-# error "Never include <bits/termios-baud.h> directly; use <termios.h> instead."
+# error "Never include <bits/termios-cbaud.h> directly; use <termios.h> instead."
#endif
#ifdef __USE_MISC
# define CBAUD 0x0000100f
# define CBAUDEX 0x00001000
-# define CIBAUD 0x100f0000 /* input baud rate (not used) */
-# define CMSPAR 0x40000000 /* mark or space (stick) parity */
-# define CRTSCTS 0x80000000 /* flow control */
+# define CIBAUD 0x100f0000 /* input baud rate */
+# define IBSHIFT 16
#endif
-#define B57600 0x00001001
-#define B115200 0x00001002
-#define B230400 0x00001003
-#define B460800 0x00001004
-#define B76800 0x00001005
-#define B153600 0x00001006
-#define B307200 0x00001007
-#define B614400 0x00001008
-#define B921600 0x00001009
-#define B500000 0x0000100a
-#define B576000 0x0000100b
-#define B1000000 0x0000100c
-#define B1152000 0x0000100d
-#define B1500000 0x0000100e
-#define B2000000 0x0000100f
-#define __MAX_BAUD B2000000
+#define __B57600 0x00001001
+#define __B115200 0x00001002
+#define __B230400 0x00001003
+#define __B460800 0x00001004
+#define __B76800 0x00001005
+#define __B153600 0x00001006
+#define __B307200 0x00001007
+#define __B614400 0x00001008
+#define __B921600 0x00001009
+#define __B500000 0x0000100a
+#define __B576000 0x0000100b
+#define __B1000000 0x0000100c
+#define __B1152000 0x0000100d
+#define __B1500000 0x0000100e
+#define __B2000000 0x0000100f
+#define __BOTHER 0x00001000
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
+GLIBC_2.42 tcgetattr F
+GLIBC_2.42 tcsetattr F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.42 ulabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
+GLIBC_2.42 tcgetattr F
+GLIBC_2.42 tcsetattr F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.42 ulabs F
-/* Copyright (C) 1997-2025 Free Software Foundation, Inc.
+/* Architectural parameters for Linux termios - SPARC version
+
+ Copyright (C) 1991-2025 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
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#ifndef _KERNEL_TERMIOS_H
-#define _KERNEL_TERMIOS_H 1
-/* The following corresponds to the values from the Linux 2.1.20 kernel. */
-
-/* We need the definition of tcflag_t, cc_t, and speed_t. */
-#include <termios.h>
-
-#define __KERNEL_NCCS 17
-
-struct __kernel_termios
- {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_line; /* line discipline */
- cc_t c_cc[__KERNEL_NCCS]; /* control characters */
- };
-
-#define _HAVE_C_ISPEED 0
-#define _HAVE_C_OSPEED 0
-
-#endif /* kernel_termios.h */
+#define _TERMIOS2_NCCS 19
+#define _HAVE_TERMIOS2_C_CC_BEFORE_C_LINE 0
+
+#define _HAVE_STRUCT_OLD_TERMIOS 1
+
+#define OLD_NCCS 17
+struct old_termios
+{
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+ cc_t c_line; /* line discipline */
+ cc_t c_cc[OLD_NCCS]; /* control characters */
+};
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <stddef.h>
-#include <errno.h>
-#include <termios.h>
-#include <sysdep.h>
+#include <termios_internals.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.
+/* Conversions between legacy c_cflag fields and actual baud rates */
- 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
+/* These expressions may seem complicated; the _cbix() macro
+ compresses the CBAUD field into an index in the range 0-31. On most
+ Linux platforms, the CBAUD field is 5 bits, but the topmost bit
+ indicated by CBAUDEX, is discontinous with the rest.
+
+ The resulting masks look like:
+
+ Alpha PowerPC others
+
+ CBAUD 0x001f 0x00ff 0x100f
+ CBAUDEX 0x0000 0x0010 0x1000
+
+ LOWCBAUD 0x001f 0x000f 0x000f
+ CBAUDMASK 0x001f 0x001f 0x100f
+
+ CBAUDMASK is used to test for invalid values passed to the
+ compatibility functions or in termios::c_cflag on PowerPC.
+
+ The divide-multiply sequence in the _cbix() macro gets converted
+ to shift and masks as necessary by the compiler. */
+
+#define LOWCBAUD (CBAUD & (CBAUDEX-1))
+#define _cbix(x) (((x) & LOWCBAUD) | \
+ (CBAUDEX ? ((x) & CBAUDEX)/CBAUDEX * (LOWCBAUD+1) : 0))
+#define CBAUDMASK (LOWCBAUD | CBAUDEX)
+
+/* Compile time sanity checks for broken CBAUD or CIBAUD definitions */
+#if CIBAUD != (CBAUD << IBSHIFT)
+# error "CIBAUD should == CBAUD << IBSHIFT"
+#elif CBAUDEX & (CBAUDEX-1)
+# error "CBAUDEX should either be 0 or a single bit"
+#elif !(CBAUD & 1)
+# error "The CBAUD field should start at bit 0"
+#elif CBAUDEX & ~CBAUD
+# error "CBAUD should include the CBAUDEX bit"
+#endif
+
+speed_t
+___cbaud_to_speed (tcflag_t c_cflag, speed_t other)
+{
+ static const speed_t cbaudix_to_speed [] =
+ {
+ [0 ... _cbix(CBAUDMASK)] = -1,
+ [_cbix(__B0)] = 0,
+ [_cbix(__B50)] = 50,
+ [_cbix(__B75)] = 75,
+ [_cbix(__B110)] = 110,
+ [_cbix(__B134)] = 134,
+ [_cbix(__B150)] = 150,
+ [_cbix(__B200)] = 200,
+ [_cbix(__B300)] = 300,
+ [_cbix(__B600)] = 600,
+ [_cbix(__B1200)] = 1200,
+ [_cbix(__B1800)] = 1800,
+ [_cbix(__B2400)] = 2400,
+ [_cbix(__B4800)] = 4800,
+ [_cbix(__B9600)] = 9600,
+ [_cbix(__B19200)] = 19200,
+ [_cbix(__B38400)] = 38400,
+ [_cbix(__B57600)] = 57600,
+ [_cbix(__B115200)] = 115200,
+ [_cbix(__B230400)] = 230400,
+ [_cbix(__B460800)] = 460800,
+ [_cbix(__B500000)] = 500000,
+ [_cbix(__B576000)] = 576000,
+ [_cbix(__B921600)] = 921600,
+ [_cbix(__B1000000)] = 1000000,
+ [_cbix(__B1152000)] = 1152000,
+ [_cbix(__B1500000)] = 1500000,
+ [_cbix(__B2000000)] = 2000000,
+#ifdef __B7200
+ [_cbix(__B7200)] = 7200,
+#endif
+#ifdef __B14400
+ [_cbix(__B14400)] = 14400,
+#endif
+#ifdef __B28800
+ [_cbix(__B28800)] = 28800,
+#endif
+#ifdef __B76800
+ [_cbix(__B76800)] = 76800,
+#endif
+#ifdef __B153600
+ [_cbix(__B153600)] = 153600,
+#endif
+#ifdef __B307200
+ [_cbix(__B307200)] = 307200,
+#endif
+#ifdef __B614400
+ [_cbix(__B614400)] = 614400,
+#endif
+#ifdef __B2500000
+ [_cbix(__B2500000)] = 2500000,
+#endif
+#ifdef __B3000000
+ [_cbix(__B3000000)] = 3000000,
+#endif
+#ifdef __B3500000
+ [_cbix(__B3500000)] = 3500000,
+#endif
+#ifdef __B4000000
+ [_cbix(__B4000000)] = 4000000,
+#endif
+ };
+ speed_t speed;
+
+ if (c_cflag & (tcflag_t)(~CBAUDMASK))
+ return other;
+
+ speed = cbaudix_to_speed[_cbix(c_cflag)];
+ return speed == (speed_t)-1 ? other : speed;
+}
+
+tcflag_t
+___speed_to_cbaud (speed_t speed)
+{
+ switch (speed) {
+ case 0:
+ return __B0;
+ case 50:
+ return __B50;
+ case 75:
+ return __B75;
+ case 110:
+ return __B110;
+ case 134:
+ return __B134;
+ case 150:
+ return __B150;
+ case 200:
+ return __B200;
+ case 300:
+ return __B300;
+ case 600:
+ return __B600;
+ case 1200:
+ return __B1200;
+ case 1800:
+ return __B1800;
+ case 2400:
+ return __B2400;
+ case 4800:
+ return __B4800;
+ case 9600:
+ return __B9600;
+ case 19200:
+ return __B19200;
+ case 38400:
+ return __B38400;
+ case 57600:
+ return __B57600;
+ case 115200:
+ return __B115200;
+ case 230400:
+ return __B230400;
+ case 460800:
+ return __B460800;
+ case 500000:
+ return __B500000;
+ case 576000:
+ return __B576000;
+ case 921600:
+ return __B921600;
+ case 1000000:
+ return __B1000000;
+ case 1152000:
+ return __B1152000;
+ case 1500000:
+ return __B1500000;
+ case 2000000:
+ return __B2000000;
+#ifdef __B76800
+ case 76800:
+ return __B76800;
+#endif
+#ifdef __B153600
+ case 153600:
+ return __B153600;
+#endif
+#ifdef __B307200
+ case 307200:
+ return __B307200;
+#endif
+#ifdef __B614400
+ case 614400:
+ return __B614400;
+#endif
+#ifdef __B2500000
+ case 2500000:
+ return __B2500000;
+#endif
+#ifdef __B3000000
+ case 3000000:
+ return __B3000000;
+#endif
+#ifdef __B3500000
+ case 3500000:
+ return __B3500000;
+#endif
+#ifdef __B4000000
+ case 4000000:
+ return __B4000000;
+#endif
+ default:
+ return __BOTHER;
+ }
+}
+
+
+/* Canonicalize the representation of speed fields in a kernel
+ termios2 structure. Specifically, if there is a valid legacy cbaud
+ representation (not __BOTHER), use it and propagate the
+ corresponding speed value to ispeed/ospeed, otherwise the other way
+ around if possible. Finally, if the input speed is zero, copy the
+ output speed to the input speed.
+
+ The kernel doesn't do this canonicalization, which can affect
+ legacy utilities, so do it here.
+
+ This is used by tcgetattr() and tcsetattr(). */
+void
+___termios2_canonicalize_speeds (struct termios2 *k_termios_p)
+{
+ k_termios_p->c_ospeed =
+ ___cbaud_to_speed (cbaud (k_termios_p->c_cflag), k_termios_p->c_ospeed);
+ k_termios_p->c_ispeed =
+ ___cbaud_to_speed (cibaud (k_termios_p->c_cflag), k_termios_p->c_ispeed);
+
+ if (!k_termios_p->c_ispeed)
+ k_termios_p->c_ispeed = k_termios_p->c_ospeed;
+
+ k_termios_p->c_cflag &= ~(CBAUD | CIBAUD);
+ k_termios_p->c_cflag |= ___speed_to_cbaud (k_termios_p->c_ospeed);
+ k_termios_p->c_cflag |= ___speed_to_cbaud (k_termios_p->c_ispeed) << IBSHIFT;
+}
/* Return the output baud rate stored in *TERMIOS_P. */
speed_t
-cfgetospeed (const struct termios *termios_p)
+__cfgetospeed (const struct termios *termios_p)
{
- return termios_p->c_cflag & (CBAUD | CBAUDEX);
+ return termios_p->c_ospeed;
}
+versioned_symbol (libc, __cfgetospeed, cfgetospeed, GLIBC_2_42);
-/* 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. */
+/* Return the input baud rate stored in *TERMIOS_P. */
speed_t
-cfgetispeed (const struct termios *termios_p)
+__cfgetispeed (const struct termios *termios_p)
{
- return ((termios_p->c_iflag & IBAUD0)
- ? 0 : termios_p->c_cflag & (CBAUD | CBAUDEX));
+ return termios_p->c_ispeed;
}
+versioned_symbol (libc, __cfgetispeed, cfgetispeed, GLIBC_2_42);
/* Set the output baud rate stored in *TERMIOS_P to SPEED. */
int
-cfsetospeed (struct termios *termios_p, speed_t speed)
+__cfsetospeed (struct termios *termios_p, speed_t speed)
{
- if ((speed & ~CBAUD) != 0
- && (speed < B57600 || speed > __MAX_BAUD))
- return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+ tcflag_t cbaud = ___speed_to_cbaud (speed);
-#if _HAVE_STRUCT_TERMIOS_C_OSPEED
termios_p->c_ospeed = speed;
+ termios_p->c_cflag &= ~CBAUD;
+ termios_p->c_cflag |= cbaud;
+
+ return 0;
+}
+versioned_symbol (libc, __cfsetospeed, cfsetospeed, GLIBC_2_42);
+
+/* Set the input baud rate stored in *TERMIOS_P to SPEED. */
+int
+__cfsetispeed (struct termios *termios_p, speed_t speed)
+{
+ tcflag_t cbaud = ___speed_to_cbaud (speed);
+
+ termios_p->c_ispeed = speed;
+ termios_p->c_cflag &= ~CIBAUD;
+ termios_p->c_cflag |= cbaud << IBSHIFT;
+
+ return 0;
+}
+versioned_symbol (libc, __cfsetispeed, cfsetispeed, GLIBC_2_42);
+
+#if _TERMIOS_OLD_COMPAT
+
+/* Legacy versions which returns cbaud-encoded speed_t values */
+
+speed_t
+attribute_compat_text_section
+__old_cfgetospeed (const old_termios_t *termios_p)
+{
+ return cbaud (termios_p->c_cflag);
+}
+compat_symbol (libc, __old_cfgetospeed, cfgetospeed, GLIBC_2_0);
+
+speed_t
+attribute_compat_text_section
+__old_cfgetispeed (const old_termios_t *termios_p)
+{
+ return cibaud (termios_p->c_cflag);
+}
+compat_symbol (libc, __old_cfgetispeed, cfgetispeed, GLIBC_2_0);
+
+int
+attribute_compat_text_section
+__old_cfsetospeed (old_termios_t *termios_p, speed_t speed)
+{
+ speed_t real_speed = ___cbaud_to_speed (speed, -1);
+ if (real_speed == (speed_t)-1)
+ return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+
+#if !_HAVE_STRUCT_OLD_TERMIOS
+ /* Otherwise this field doesn't exist in old_termios_t */
+ termios_p->c_ospeed = real_speed;
#endif
- termios_p->c_cflag &= ~(CBAUD | CBAUDEX);
+ termios_p->c_cflag &= ~CBAUD;
termios_p->c_cflag |= speed;
return 0;
}
-libc_hidden_def (cfsetospeed)
+compat_symbol (libc, __old_cfsetospeed, cfsetospeed, GLIBC_2_0);
-
-/* 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)
+attribute_compat_text_section
+__old_cfsetispeed (old_termios_t *termios_p, speed_t speed)
{
- if ((speed & ~CBAUD) != 0
- && (speed < B57600 || speed > __MAX_BAUD))
+ speed_t real_speed = ___cbaud_to_speed (speed, -1);
+ if (real_speed == (speed_t)-1)
return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
-#if _HAVE_STRUCT_TERMIOS_C_ISPEED
- termios_p->c_ispeed = speed;
+#if !_HAVE_STRUCT_OLD_TERMIOS
+ /* Otherwise this field doesn't exist in old_termios_t */
+ termios_p->c_ispeed = real_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;
- }
+ termios_p->c_cflag &= ~CIBAUD;
+ termios_p->c_cflag |= speed << IBSHIFT;
return 0;
}
-libc_hidden_def (cfsetispeed)
+compat_symbol (libc, __old_cfsetispeed, cfsetispeed, GLIBC_2_0);
+
+#endif /* _TERMIOS_OLD_COMPAT */
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <string.h>
-#include <termios.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sysdep.h>
-
-/* The difference here is that the termios structure used in the
- kernel is not the same as we use in the libc. Therefore we must
- translate it here. */
-#include <kernel_termios.h>
+#include <termios_internals.h>
/* Put the state of FD into *TERMIOS_P. */
int
__tcgetattr (int fd, struct termios *termios_p)
{
- struct __kernel_termios k_termios;
- int retval;
-
- retval = INLINE_SYSCALL (ioctl, 3, fd, TCGETS, &k_termios);
+ struct termios2 k_termios;
+ long int retval = INLINE_SYSCALL_CALL (ioctl, fd, TCGETS2, &k_termios);
- if (__glibc_likely (retval == 0))
+ if (__glibc_likely (retval != -1))
{
- termios_p->c_iflag = k_termios.c_iflag;
- termios_p->c_oflag = k_termios.c_oflag;
- termios_p->c_cflag = k_termios.c_cflag;
- termios_p->c_lflag = k_termios.c_lflag;
- termios_p->c_line = k_termios.c_line;
-#if _HAVE_STRUCT_TERMIOS_C_ISPEED
-# if _HAVE_C_ISPEED
- termios_p->c_ispeed = k_termios.c_ispeed;
-# else
- termios_p->c_ispeed = k_termios.c_cflag & (CBAUD | CBAUDEX);
-# endif
-#endif
-#if _HAVE_STRUCT_TERMIOS_C_OSPEED
-# if _HAVE_C_OSPEED
+ ___termios2_canonicalize_speeds (&k_termios);
+
+ memset (termios_p, 0, sizeof (*termios_p));
+ termios_p->c_iflag = k_termios.c_iflag;
+ termios_p->c_oflag = k_termios.c_oflag;
+ termios_p->c_cflag = k_termios.c_cflag;
+ termios_p->c_lflag = k_termios.c_lflag;
+ termios_p->c_line = k_termios.c_line;
termios_p->c_ospeed = k_termios.c_ospeed;
-# else
- termios_p->c_ospeed = k_termios.c_cflag & (CBAUD | CBAUDEX);
-# endif
-#endif
- if (sizeof (cc_t) == 1 || _POSIX_VDISABLE == 0
- || (unsigned char) _POSIX_VDISABLE == (unsigned char) -1)
- memset (__mempcpy (&termios_p->c_cc[0], &k_termios.c_cc[0],
- __KERNEL_NCCS * sizeof (cc_t)),
- _POSIX_VDISABLE, (NCCS - __KERNEL_NCCS) * sizeof (cc_t));
- else
- {
- memcpy (&termios_p->c_cc[0], &k_termios.c_cc[0],
- __KERNEL_NCCS * sizeof (cc_t));
+ termios_p->c_ispeed = k_termios.c_ispeed;
- for (size_t cnt = __KERNEL_NCCS; cnt < NCCS; ++cnt)
- termios_p->c_cc[cnt] = _POSIX_VDISABLE;
- }
+ copy_c_cc (termios_p->c_cc, NCCS, k_termios.c_cc, _TERMIOS2_NCCS);
}
return retval;
}
-
libc_hidden_def (__tcgetattr)
+
+#if _TERMIOS_OLD_COMPAT && _HAVE_STRUCT_OLD_TERMIOS
+
+versioned_symbol (libc, __tcgetattr, tcgetattr, GLIBC_2_42);
+
+/* Legacy version for shorter struct termios */
+int
+attribute_compat_text_section
+__old_tcgetattr (int fd, old_termios_t *termios_p)
+{
+ struct termios new_termios;
+ int retval = __tcgetattr (fd, &new_termios);
+ if (__glibc_likely (retval != -1))
+ {
+ memcpy (termios_p, &new_termios, sizeof (*termios_p));
+ }
+ return retval;
+}
+compat_symbol (libc, __old_tcgetattr, tcgetattr, GLIBC_2_0);
+
+#else
+
weak_alias (__tcgetattr, tcgetattr)
+
+#endif
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <string.h>
-#include <termios.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sysdep.h>
-
-/* The difference here is that the termios structure used in the
- kernel is not the same as we use in the libc. Therefore we must
- translate it here. */
-#include <kernel_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 `speed.c'. */
-#define IBAUD0 020000000000
+#include <termios_internals.h>
+#define static_assert_equal(x,y) _Static_assert ((x) == (y), #x " != " #y)
/* Set the state of FD to *TERMIOS_P. */
int
__tcsetattr (int fd, int optional_actions, const struct termios *termios_p)
{
- struct __kernel_termios k_termios;
- unsigned long int cmd;
+ struct termios2 k_termios;
+ unsigned long cmd;
- switch (optional_actions)
- {
- case TCSANOW:
- cmd = TCSETS;
- break;
- case TCSADRAIN:
- cmd = TCSETSW;
- break;
- case TCSAFLUSH:
- cmd = TCSETSF;
- break;
- default:
- return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
- }
+ memset (&k_termios, 0, sizeof k_termios);
- k_termios.c_iflag = termios_p->c_iflag & ~IBAUD0;
+ k_termios.c_iflag = termios_p->c_iflag;
k_termios.c_oflag = termios_p->c_oflag;
k_termios.c_cflag = termios_p->c_cflag;
k_termios.c_lflag = termios_p->c_lflag;
- k_termios.c_line = termios_p->c_line;
-#if _HAVE_C_ISPEED && _HAVE_STRUCT_TERMIOS_C_ISPEED
- k_termios.c_ispeed = termios_p->c_ispeed;
-#endif
-#if _HAVE_C_OSPEED && _HAVE_STRUCT_TERMIOS_C_OSPEED
+ k_termios.c_line = termios_p->c_line;
+
k_termios.c_ospeed = termios_p->c_ospeed;
-#endif
- memcpy (&k_termios.c_cc[0], &termios_p->c_cc[0],
- __KERNEL_NCCS * sizeof (cc_t));
+ k_termios.c_ispeed = termios_p->c_ispeed;
+
+ ___termios2_canonicalize_speeds (&k_termios);
+
+ copy_c_cc (k_termios.c_cc, _TERMIOS2_NCCS, termios_p->c_cc, NCCS);
+
+ /*
+ * Choose the proper ioctl number to invoke.
+ *
+ * Alpha got TCSETS2 late (Linux 4.20), but has the same structure
+ * format, and it only needs TCSETS2 if either it needs to use
+ * __BOTHER or split speed. All other architectures have TCSETS2 as
+ * far back as the current glibc supports. Calling TCSETS with
+ * __BOTHER causes unpredictable results on old Alpha kernels and
+ * could even crash them.
+ */
+ static_assert_equal(TCSADRAIN, TCSANOW + 1);
+ static_assert_equal(TCSAFLUSH, TCSANOW + 2);
+ static_assert_equal(TCSETSW2, TCSETS2 + 1);
+ static_assert_equal(TCSETSF2, TCSETS2 + 2);
+ static_assert_equal(TCSETSW, TCSETS + 1);
+ static_assert_equal(TCSETSF, TCSETS + 2);
+
+ cmd = (long)optional_actions - TCSANOW;
+ if (cmd > 2)
+ return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+
+ if (__ASSUME_TERMIOS2 ||
+ k_termios.c_ospeed != k_termios.c_ispeed ||
+ cbaud (k_termios.c_cflag) == __BOTHER)
+ {
+ cmd += TCSETS2;
+ }
+ else
+ {
+ cmd += TCSETS;
+ k_termios.c_cflag &= ~CIBAUD;
+ }
- return INLINE_SYSCALL (ioctl, 3, fd, cmd, &k_termios);
+ return INLINE_SYSCALL_CALL (ioctl, fd, cmd, &k_termios);
}
libc_hidden_def (__tcsetattr)
+
+#if _HAVE_STRUCT_OLD_TERMIOS && _TERMIOS_OLD_COMPAT
+
+versioned_symbol (libc, __tcsetattr, tcsetattr, GLIBC_2_42);
+
+/* Legacy version for shorter struct termios without speed fields */
+int
+attribute_compat_text_section
+__old_tcsetattr (int fd, int optional_actions, const old_termios_t *termios_p)
+{
+ struct termios new_termios;
+
+ memset (&new_termios, 0, sizeof (new_termios));
+ new_termios.c_iflag = termios_p->c_iflag;
+ new_termios.c_oflag = termios_p->c_oflag;
+ new_termios.c_cflag = termios_p->c_cflag;
+ new_termios.c_lflag = termios_p->c_lflag;
+ new_termios.c_line = termios_p->c_line;
+ copy_c_cc(new_termios.c_cc, NCCS, termios_p->c_cc, OLD_NCCS);
+
+ return __tcsetattr (fd, optional_actions, &new_termios);
+}
+compat_symbol (libc, __old_tcsetattr, tcsetattr, GLIBC_2_0);
+
+#else
+
weak_alias (__tcsetattr, tcsetattr)
+
+#endif
-/* Copyright (C) 1997-2025 Free Software Foundation, Inc.
+/* Architectural parameters for Linux termios - generic version
+
+ Copyright (C) 1997-2025 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
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
+ License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#ifndef _KERNEL_TERMIOS_H
-#define _KERNEL_TERMIOS_H 1
-/* The following corresponds to the values from the Linux 2.1.24 kernel. */
-
-#define __KERNEL_NCCS 23
-
-struct __kernel_termios
- {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_line; /* line discipline */
- cc_t c_cc[__KERNEL_NCCS]; /* control characters */
- };
-
-#define _HAVE_C_ISPEED 0
-#define _HAVE_C_OSPEED 0
+#define _TERMIOS2_NCCS 19
+#define _HAVE_TERMIOS2_C_CC_BEFORE_C_LINE 0
-#endif /* kernel_termios.h */
+#define _HAVE_STRUCT_OLD_TERMIOS 0
--- /dev/null
+/* termios functions internal implementation header for Linux
+
+ Copyright (C) 1991-2025 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/>. */
+
+#ifndef TERMIOS_INTERNALS_H
+#define TERMIOS_INTERNALS_H 1
+
+#include <stddef.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sysdep.h>
+#include <shlib-compat.h>
+
+#include <termios_arch.h>
+
+/* ---- Kernel interface definitions ---- */
+
+/* The the termios2 structure used in the kernel interfaces is not the
+ same as the termios structure we use in the libc. Therefore we
+ must translate it here. */
+
+struct termios2
+{
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+#if _HAVE_TERMIOS2_C_CC_BEFORE_C_LINE
+ cc_t c_cc[_TERMIOS2_NCCS]; /* control characters */
+ cc_t c_line; /* line discipline */
+#else
+ cc_t c_line; /* line discipline */
+ cc_t c_cc[_TERMIOS2_NCCS]; /* control characters */
+#endif
+ speed_t c_ispeed; /* input speed */
+ speed_t c_ospeed; /* output speed */
+};
+
+/* Alpha got termios2 late, but TCGETS has exactly the same structure
+ format and function as TCGETS2. On all other platforms, the termios2
+ interface exists as far back as this version of glibc supports.
+
+ For TCGETS* it is more complicated; this is handled in tcsetattr.c.
+
+ Some other architectures only have the equivalent of the termios2
+ interface, in which case the old ioctl names are the only ones
+ presented, but are equivalent to the new ones. */
+#ifndef TCGETS2
+# define TCGETS2 TCGETS
+# define TCSETS2 TCSETS
+# define TCSETSW2 TCSETSW
+# define TCSETSF2 TCSETSF
+#elif !__ASSUME_TERMIOS2
+/* Hack for Alpha */
+# undef TCGETS2
+# define TCGETS2 TCGETS
+#endif
+
+/* ---- Application interface definitions ---- */
+
+/*
+ * Should old speed_t and struct termios (if applicable) compatibility
+ * functions be included?
+ */
+#define _TERMIOS_OLD_COMPAT SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_42)
+
+/*
+ * Old struct termios (without c_ispeed and c_ospeed fields) if
+ * applicable. The new struct termios *must* be binary identical up to
+ * the sizeof the old structure.
+ *
+ * This only applies to SPARC and MIPS; for other architectures the
+ * new and old speed_t interfaces both use the same struct termios.
+ */
+#if _HAVE_STRUCT_OLD_TERMIOS
+typedef struct old_termios old_termios_t;
+#else
+# define OLD_NCCS NCCS
+typedef struct termios old_termios_t;
+#endif
+
+/* ---- Internal function definitions ---- */
+
+/*
+ * Copy a set of c_cc fields of possibly different width. If the target
+ * field is longer, then fill with _POSIX_VDISABLE == -1.
+ */
+static inline void
+copy_c_cc (cc_t *to, size_t nto, const cc_t *from, size_t nfrom)
+{
+ if (nto < nfrom)
+ nfrom = nto;
+
+ to = __mempcpy (to, from, nfrom * sizeof(cc_t));
+ if (nto > nfrom)
+ memset (to, _POSIX_VDISABLE, (nto - nfrom) * sizeof(cc_t));
+}
+
+/* Extract the output and input legacy speed fields from c_cflag. */
+static inline tcflag_t
+cbaud (tcflag_t c_cflag)
+{
+ return c_cflag & CBAUD;
+}
+
+static inline tcflag_t
+cibaud (tcflag_t c_cflag)
+{
+ return cbaud (c_cflag >> IBSHIFT);
+}
+
+extern speed_t
+___cbaud_to_speed (tcflag_t c_cflag, speed_t other)
+ __attribute_const__ attribute_hidden;
+
+extern tcflag_t
+___speed_to_cbaud (speed_t speed)
+ __attribute_const__ attribute_hidden;
+
+extern void
+___termios2_canonicalize_speeds (struct termios2 *k_termios_p)
+ attribute_hidden;
+
+#endif /* TERMIOS_INTERNALS_H */
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
GLIBC_2.41 sched_setattr F
GLIBC_2.42 __inet_ntop_chk F
GLIBC_2.42 __inet_pton_chk F
+GLIBC_2.42 cfgetispeed F
+GLIBC_2.42 cfgetospeed F
+GLIBC_2.42 cfsetispeed F
+GLIBC_2.42 cfsetospeed F
+GLIBC_2.42 cfsetspeed F
GLIBC_2.42 pthread_gettid_np F
GLIBC_2.42 uabs F
GLIBC_2.42 uimaxabs F
projects / thirdparty / glibc.git / commitdiff
