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6463953fec
Factor out the internal kernel interface from termios_internal.h, so that it can be used in test code without causing breakage due to glibc internals used in headers. [ v3: fix Alpha build breakage ] Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/* termios kernel interface for Linux
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Copyright (C) 1991-2025 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, see
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<https://www.gnu.org/licenses/>. */
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#ifndef K_TERMIOS_H
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#define K_TERMIOS_H
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#include <stddef.h>
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#include <unistd.h>
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#include <termios.h>
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#include <kernel-features.h>
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#include <termios_arch.h>
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/* The the termios2 structure used in the kernel interfaces is not the
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same as the termios structure we use in the libc. Therefore we
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must translate it here. */
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struct termios2
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{
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tcflag_t c_iflag; /* input mode flags */
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tcflag_t c_oflag; /* output mode flags */
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tcflag_t c_cflag; /* control mode flags */
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tcflag_t c_lflag; /* local mode flags */
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#if _HAVE_TERMIOS2_C_CC_BEFORE_C_LINE
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cc_t c_cc[_TERMIOS2_NCCS]; /* control characters */
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cc_t c_line; /* line discipline */
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#else
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cc_t c_line; /* line discipline */
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cc_t c_cc[_TERMIOS2_NCCS]; /* control characters */
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#endif
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speed_t c_ispeed; /* input speed */
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speed_t c_ospeed; /* output speed */
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};
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/* Alpha got termios2 late, but TCGETS has exactly the same structure
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format and function as TCGETS2. On all other platforms, the termios2
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interface exists as far back as this version of glibc supports.
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For TCSETS* it is more complicated; this is handled in tcsetattr.c.
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Some other architectures only have the equivalent of the termios2
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interface, in which case the old ioctl names are the only ones
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presented, but are equivalent to the new ones. */
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#ifndef TCGETS2
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# define TCGETS2 TCGETS
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# define TCSETS2 TCSETS
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# define TCSETSW2 TCSETSW
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# define TCSETSF2 TCSETSF
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#elif !__ASSUME_TERMIOS2
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/* Hack for Alpha */
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# undef TCGETS2
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# define TCGETS2 TCGETS
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#endif
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#endif /* KTERMIOS_H */
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