From 5c3894ff5122cfa60724b24a11196a571e94a497 Mon Sep 17 00:00:00 2001
From: Mikhail <mp39590@gmail.com>
Date: Fri, 5 Apr 2024 19:37:01 +0300
Subject: [PATCH] OpenBSD removed syscall() calls, use proper ioctl()s instead

---
 go.mod                       |  1 +
 terminal/runereader_posix.go | 19 ++++++++++---------
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/go.mod b/go.mod
index 4837ce75..cc045092 100644
--- a/go.mod
+++ b/go.mod
@@ -10,6 +10,7 @@ require (
 	github.com/mattn/go-isatty v0.0.8
 	github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b
 	github.com/stretchr/testify v1.6.1
+	golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f
 	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
 	golang.org/x/text v0.4.0
 )
diff --git a/terminal/runereader_posix.go b/terminal/runereader_posix.go
index 563a0811..4c1e88ae 100644
--- a/terminal/runereader_posix.go
+++ b/terminal/runereader_posix.go
@@ -14,7 +14,7 @@ import (
 	"bytes"
 	"fmt"
 	"syscall"
-	"unsafe"
+	"golang.org/x/sys/unix"
 )
 
 const (
@@ -23,7 +23,7 @@ const (
 )
 
 type runeReaderState struct {
-	term   syscall.Termios
+	term	unix.Termios
 	reader *bufio.Reader
 	buf    *bytes.Buffer
 }
@@ -45,19 +45,20 @@ func (rr *RuneReader) Buffer() *bytes.Buffer {
 
 // For reading runes we just want to disable echo.
 func (rr *RuneReader) SetTermMode() error {
-	if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(rr.stdio.In.Fd()), ioctlReadTermios, uintptr(unsafe.Pointer(&rr.state.term)), 0, 0, 0); err != 0 {
+	termios, err := unix.IoctlGetTermios((int)(rr.stdio.In.Fd()), ioctlReadTermios)
+	if err != nil {
 		return err
 	}
 
-	newState := rr.state.term
-	newState.Lflag &^= syscall.ECHO | syscall.ECHONL | syscall.ICANON | syscall.ISIG
+	rr.state.term = *termios
+	termios.Lflag &^= syscall.ECHO | syscall.ECHONL | syscall.ICANON | syscall.ISIG
 	// Because we are clearing canonical mode, we need to ensure VMIN & VTIME are
 	// set to the values we expect. This combination puts things in standard
 	// "blocking read" mode (see termios(3)).
-	newState.Cc[syscall.VMIN] = 1
-	newState.Cc[syscall.VTIME] = 0
+	termios.Cc[syscall.VMIN] = 1
+	termios.Cc[syscall.VTIME] = 0
 
-	if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(rr.stdio.In.Fd()), ioctlWriteTermios, uintptr(unsafe.Pointer(&newState)), 0, 0, 0); err != 0 {
+	if err = unix.IoctlSetTermios((int)(rr.stdio.In.Fd()), ioctlWriteTermios, termios); err != nil {
 		return err
 	}
 
@@ -65,7 +66,7 @@ func (rr *RuneReader) SetTermMode() error {
 }
 
 func (rr *RuneReader) RestoreTermMode() error {
-	if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(rr.stdio.In.Fd()), ioctlWriteTermios, uintptr(unsafe.Pointer(&rr.state.term)), 0, 0, 0); err != 0 {
+	if err := unix.IoctlSetTermios((int)(rr.stdio.In.Fd()), ioctlWriteTermios, &rr.state.term); err != nil {
 		return err
 	}
 	return nil