15.04.2026 Update

setup/termios_linux.go

@@ -0,0 +1,45 @@
+package setup
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+type termios struct {
+	Iflag  uint32
+	Oflag  uint32
+	Cflag  uint32
+	Lflag  uint32
+	Cc     [20]byte
+	Ispeed uint32
+	Ospeed uint32
+}
+
+const (
+	tcgetattr = 0x5401
+	tcsetattr = 0x5402
+	TCSAFLUSH = 2
+	ECHO      = 0x8
+	ICANON    = 0x100
+)
+
+func termiosGetState(fd int) (*termios, bool) {
+	var state termios
+	if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), uintptr(tcgetattr), uintptr(unsafe.Pointer(&state))); err != 0 {
+		return nil, false
+	}
+	return &state, true
+}
+
+func termiosDisableEcho(fd int) {
+	var state termios
+	if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), uintptr(tcgetattr), uintptr(unsafe.Pointer(&state))); err != 0 {
+		return
+	}
+	state.Lflag &^= ECHO | ICANON
+	syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), uintptr(tcsetattr), uintptr(unsafe.Pointer(&state)))
+}
+
+func termiosRestore(fd int, state *termios) {
+	syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), uintptr(tcsetattr), uintptr(unsafe.Pointer(state)))
+}