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LibC+Kernel: Add sys/ttydefaults.h

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This non-POSIX header is used in Linux/BSD systems for storing the
default termios settings. This lets us setup new TTYs' `m_termios.c_cc`
in a nicer way than using a magic string.
This commit is contained in:
Daniel Bertalan 2021-05-16 15:27:09 +02:00 • committed by Andreas Kling
parent 7ec8cb97e9
commit d5ea04cdfb
2 changed files with 80 additions and 3 deletions
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13
Kernel/TTY/TTY.cpp
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@ -11,6 +11,9 @@
#include <LibC/errno_numbers.h>
#include <LibC/signal_numbers.h>
#include <LibC/sys/ioctl_numbers.h>
#define TTYDEFCHARS
#include <LibC/sys/ttydefaults.h>
#undef TTYDEFCHARS
namespace Kernel {
@ -27,9 +30,13 @@ TTY::~TTY()
void TTY::set_default_termios()
{
memset(&m_termios, 0, sizeof(m_termios));
m_termios.c_lflag |= ISIG | ECHO | ICANON;
static const char default_cc[32] = "\003\034\010\025\004\0\1\0\021\023\032\0\022\017\027\026\0\024";
memcpy(m_termios.c_cc, default_cc, sizeof(default_cc));
m_termios.c_iflag = TTYDEF_IFLAG;
m_termios.c_oflag = TTYDEF_OFLAG;
m_termios.c_cflag = TTYDEF_CFLAG;
m_termios.c_lflag = TTYDEF_LFLAG;
m_termios.c_ispeed = TTYDEF_SPEED;
m_termios.c_ospeed = TTYDEF_SPEED;
memcpy(m_termios.c_cc, ttydefchars, sizeof(ttydefchars));
}
KResultOr<size_t> TTY::read(FileDescription&, u64, UserOrKernelBuffer& buffer, size_t size)