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VirtualConsole: Support the 'A' and 'D' CSI sequences.

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This makes backspace work correctly when line editing with bash-2.05b.
This commit is contained in:
Andreas Kling 2018-12-07 01:19:02 +01:00
parent a8c7b6ce86
commit 4f6438ec66
5 changed files with 47 additions and 7 deletions
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34
Kernel/TTY.cpp
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@ -9,16 +9,21 @@
TTY::TTY(unsigned major, unsigned minor)
: CharacterDevice(major, minor)
{
memset(&m_termios, 0, sizeof(m_termios));
m_termios.c_lflag |= ISIG | ECHO;
static const char default_cc[32] = "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0";
memcpy(m_termios.c_cc, default_cc, sizeof(default_cc));
set_default_termios();
}
TTY::~TTY()
{
}
void TTY::set_default_termios()
{
memset(&m_termios, 0, sizeof(m_termios));
m_termios.c_lflag |= ISIG | ECHO;
static const char default_cc[32] = "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0";
memcpy(m_termios.c_cc, default_cc, sizeof(default_cc));
}
ssize_t TTY::read(byte* buffer, size_t size)
{
return m_buffer.read(buffer, size);
@ -27,7 +32,11 @@ ssize_t TTY::read(byte* buffer, size_t size)
ssize_t TTY::write(const byte* buffer, size_t size)
{
#ifdef TTY_DEBUG
dbgprintf("TTY::write %b {%u}\n", buffer[0], size);
dbgprintf("TTY::write {%u} ", size);
for (size_t i = 0; i < size; ++i) {
dbgprintf("%b ", buffer[i]);
}
dbgprintf("\n");
#endif
on_tty_write(buffer, size);
return 0;
@ -71,12 +80,25 @@ void TTY::generate_signal(int signal)
void TTY::set_termios(const Unix::termios& t)
{
m_termios = t;
dbgprintf("%s set_termios: IECHO? %u, ISIG? %u, ICANON? %u\n",
dbgprintf("%s set_termios: ECHO=%u, ISIG=%u, ICANON=%u\n",
tty_name().characters(),
should_echo_input(),
should_generate_signals(),
in_canonical_mode()
);
dbgprintf("%s set_termios: ECHOE=%u, ECHOK=%u, ECHONL=%u\n",
tty_name().characters(),
(m_termios.c_lflag & ECHOE) != 0,
(m_termios.c_lflag & ECHOK) != 0,
(m_termios.c_lflag & ECHONL) != 0
);
dbgprintf("%s set_termios: ISTRIP=%u, ICRNL=%u, INLCR=%u, IGNCR=%u\n",
tty_name().characters(),
(m_termios.c_iflag & ISTRIP) != 0,
(m_termios.c_iflag & ICRNL) != 0,
(m_termios.c_iflag & INLCR) != 0,
(m_termios.c_iflag & IGNCR) != 0
);
}
int TTY::ioctl(Process& process, unsigned request, unsigned arg)