mirror of https://github.com/elisescu/tty-share
Use the upstrea creack/pty instead of my own fork
In the meantime they added a Setsize function which seems to do the same thing as I was doing.pull/66/head v2.4.0
Vasile Popescu
1 year ago
committed by
Elis Popescu
parent
ef39dfc5a1
commit
e0292cbc4d
0
vendor/github.com/elisescu/pty/.gitignore → vendor/github.com/creack/pty/.gitignore
generated
vendored
0
vendor/github.com/elisescu/pty/.gitignore → vendor/github.com/creack/pty/.gitignore
generated
vendored
@ -0,0 +1,14 @@
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FROM golang:1.13
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# Clone and complie a riscv compatible version of the go compiler.
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RUN git clone https://review.gerrithub.io/riscv/riscv-go /riscv-go
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# riscvdev branch HEAD as of 2019-06-29.
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RUN cd /riscv-go && git checkout 04885fddd096d09d4450726064d06dd107e374bf
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ENV PATH=/riscv-go/misc/riscv:/riscv-go/bin:$PATH
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RUN cd /riscv-go/src && GOROOT_BOOTSTRAP=$(go env GOROOT) ./make.bash
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ENV GOROOT=/riscv-go
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# Make sure we compile.
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WORKDIR pty
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ADD . .
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RUN GOOS=linux GOARCH=riscv go build
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@ -0,0 +1,100 @@
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# pty
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Pty is a Go package for using unix pseudo-terminals.
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## Install
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go get github.com/creack/pty
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## Example
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### Command
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```go
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package main
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import (
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"github.com/creack/pty"
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"io"
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"os"
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"os/exec"
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)
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func main() {
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c := exec.Command("grep", "--color=auto", "bar")
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f, err := pty.Start(c)
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if err != nil {
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panic(err)
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}
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go func() {
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f.Write([]byte("foo\n"))
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f.Write([]byte("bar\n"))
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f.Write([]byte("baz\n"))
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f.Write([]byte{4}) // EOT
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}()
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io.Copy(os.Stdout, f)
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}
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```
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### Shell
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```go
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package main
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import (
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"io"
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"log"
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"os"
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"os/exec"
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"os/signal"
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"syscall"
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"github.com/creack/pty"
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"golang.org/x/crypto/ssh/terminal"
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)
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func test() error {
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// Create arbitrary command.
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c := exec.Command("bash")
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// Start the command with a pty.
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ptmx, err := pty.Start(c)
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if err != nil {
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return err
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}
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// Make sure to close the pty at the end.
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defer func() { _ = ptmx.Close() }() // Best effort.
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// Handle pty size.
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ch := make(chan os.Signal, 1)
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signal.Notify(ch, syscall.SIGWINCH)
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go func() {
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for range ch {
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if err := pty.InheritSize(os.Stdin, ptmx); err != nil {
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log.Printf("error resizing pty: %s", err)
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}
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}
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}()
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ch <- syscall.SIGWINCH // Initial resize.
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// Set stdin in raw mode.
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oldState, err := terminal.MakeRaw(int(os.Stdin.Fd()))
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if err != nil {
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panic(err)
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}
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defer func() { _ = terminal.Restore(int(os.Stdin.Fd()), oldState) }() // Best effort.
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// Copy stdin to the pty and the pty to stdout.
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go func() { _, _ = io.Copy(ptmx, os.Stdin) }()
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_, _ = io.Copy(os.Stdout, ptmx)
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return nil
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}
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func main() {
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if err := test(); err != nil {
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log.Fatal(err)
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}
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}
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```
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2
vendor/github.com/elisescu/pty/ioctl.go → vendor/github.com/creack/pty/ioctl.go
generated
vendored
2
vendor/github.com/elisescu/pty/ioctl.go → vendor/github.com/creack/pty/ioctl.go
generated
vendored
@ -1,4 +1,4 @@
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// +build !windows
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// +build !windows,!solaris
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package pty
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@ -0,0 +1,30 @@
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package pty
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import (
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"golang.org/x/sys/unix"
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"unsafe"
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)
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const (
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// see /usr/include/sys/stropts.h
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I_PUSH = uintptr((int32('S')<<8 | 002))
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I_STR = uintptr((int32('S')<<8 | 010))
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I_FIND = uintptr((int32('S')<<8 | 013))
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// see /usr/include/sys/ptms.h
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ISPTM = (int32('P') << 8) | 1
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UNLKPT = (int32('P') << 8) | 2
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PTSSTTY = (int32('P') << 8) | 3
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ZONEPT = (int32('P') << 8) | 4
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OWNERPT = (int32('P') << 8) | 5
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)
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type strioctl struct {
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ic_cmd int32
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ic_timout int32
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ic_len int32
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ic_dp unsafe.Pointer
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}
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func ioctl(fd, cmd, ptr uintptr) error {
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return unix.IoctlSetInt(int(fd), uint(cmd), int(ptr))
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}
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11
vendor/github.com/elisescu/pty/pty_linux.go → vendor/github.com/creack/pty/pty_linux.go
generated
vendored
11
vendor/github.com/elisescu/pty/pty_linux.go → vendor/github.com/creack/pty/pty_linux.go
generated
vendored
@ -0,0 +1,33 @@
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package pty
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import (
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"os"
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"syscall"
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"unsafe"
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)
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func open() (pty, tty *os.File, err error) {
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/*
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* from ptm(4):
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* The PTMGET command allocates a free pseudo terminal, changes its
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* ownership to the caller, revokes the access privileges for all previous
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* users, opens the file descriptors for the pty and tty devices and
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* returns them to the caller in struct ptmget.
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*/
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p, err := os.OpenFile("/dev/ptm", os.O_RDWR|syscall.O_CLOEXEC, 0)
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if err != nil {
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return nil, nil, err
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}
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defer p.Close()
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var ptm ptmget
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if err := ioctl(p.Fd(), uintptr(ioctl_PTMGET), uintptr(unsafe.Pointer(&ptm))); err != nil {
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return nil, nil, err
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}
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pty = os.NewFile(uintptr(ptm.Cfd), "/dev/ptm")
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tty = os.NewFile(uintptr(ptm.Sfd), "/dev/ptm")
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return pty, tty, nil
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}
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@ -0,0 +1,139 @@
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package pty
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/* based on:
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http://src.illumos.org/source/xref/illumos-gate/usr/src/lib/libc/port/gen/pt.c
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*/
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import (
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"errors"
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"golang.org/x/sys/unix"
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"os"
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"strconv"
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"syscall"
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"unsafe"
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)
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const NODEV = ^uint64(0)
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func open() (pty, tty *os.File, err error) {
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masterfd, err := syscall.Open("/dev/ptmx", syscall.O_RDWR|unix.O_NOCTTY, 0)
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//masterfd, err := syscall.Open("/dev/ptmx", syscall.O_RDWR|syscall.O_CLOEXEC|unix.O_NOCTTY, 0)
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if err != nil {
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return nil, nil, err
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}
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p := os.NewFile(uintptr(masterfd), "/dev/ptmx")
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sname, err := ptsname(p)
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if err != nil {
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return nil, nil, err
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}
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err = grantpt(p)
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if err != nil {
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return nil, nil, err
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}
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err = unlockpt(p)
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if err != nil {
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return nil, nil, err
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||||
}
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slavefd, err := syscall.Open(sname, os.O_RDWR|unix.O_NOCTTY, 0)
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if err != nil {
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return nil, nil, err
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}
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t := os.NewFile(uintptr(slavefd), sname)
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// pushing terminal driver STREAMS modules as per pts(7)
|
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for _, mod := range([]string{"ptem", "ldterm", "ttcompat"}) {
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err = streams_push(t, mod)
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if err != nil {
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return nil, nil, err
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||||
}
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||||
}
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return p, t, nil
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}
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func minor(x uint64) uint64 {
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return x & 0377
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}
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func ptsdev(fd uintptr) uint64 {
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istr := strioctl{ISPTM, 0, 0, nil}
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err := ioctl(fd, I_STR, uintptr(unsafe.Pointer(&istr)))
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||||
if err != nil {
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return NODEV
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}
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var status unix.Stat_t
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err = unix.Fstat(int(fd), &status)
|
||||
if err != nil {
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||||
return NODEV
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||||
}
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||||
return uint64(minor(status.Rdev))
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||||
}
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func ptsname(f *os.File) (string, error) {
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dev := ptsdev(f.Fd())
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if dev == NODEV {
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return "", errors.New("not a master pty")
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}
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fn := "/dev/pts/" + strconv.FormatInt(int64(dev), 10)
|
||||
// access(2) creates the slave device (if the pty exists)
|
||||
// F_OK == 0 (unistd.h)
|
||||
err := unix.Access(fn, 0)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
return fn, nil
|
||||
}
|
||||
|
||||
type pt_own struct {
|
||||
pto_ruid int32
|
||||
pto_rgid int32
|
||||
}
|
||||
|
||||
func grantpt(f *os.File) error {
|
||||
if ptsdev(f.Fd()) == NODEV {
|
||||
return errors.New("not a master pty")
|
||||
}
|
||||
var pto pt_own
|
||||
pto.pto_ruid = int32(os.Getuid())
|
||||
// XXX should first attempt to get gid of DEFAULT_TTY_GROUP="tty"
|
||||
pto.pto_rgid = int32(os.Getgid())
|
||||
var istr strioctl
|
||||
istr.ic_cmd = OWNERPT
|
||||
istr.ic_timout = 0
|
||||
istr.ic_len = int32(unsafe.Sizeof(istr))
|
||||
istr.ic_dp = unsafe.Pointer(&pto)
|
||||
err := ioctl(f.Fd(), I_STR, uintptr(unsafe.Pointer(&istr)))
|
||||
if err != nil {
|
||||
return errors.New("access denied")
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func unlockpt(f *os.File) error {
|
||||
istr := strioctl{UNLKPT, 0, 0, nil}
|
||||
return ioctl(f.Fd(), I_STR, uintptr(unsafe.Pointer(&istr)))
|
||||
}
|
||||
|
||||
// push STREAMS modules if not already done so
|
||||
func streams_push(f *os.File, mod string) error {
|
||||
var err error
|
||||
buf := []byte(mod)
|
||||
// XXX I_FIND is not returning an error when the module
|
||||
// is already pushed even though truss reports a return
|
||||
// value of 1. A bug in the Go Solaris syscall interface?
|
||||
// XXX without this we are at risk of the issue
|
||||
// https://www.illumos.org/issues/9042
|
||||
// but since we are not using libc or XPG4.2, we should not be
|
||||
// double-pushing modules
|
||||
|
||||
err = ioctl(f.Fd(), I_FIND, uintptr(unsafe.Pointer(&buf[0])))
|
||||
if err != nil {
|
||||
return nil
|
||||
}
|
||||
err = ioctl(f.Fd(), I_PUSH, uintptr(unsafe.Pointer(&buf[0])))
|
||||
return err
|
||||
}
|
||||
@ -1,4 +1,4 @@
|
||||
// +build !linux,!darwin,!freebsd,!dragonfly
|
||||
// +build !linux,!darwin,!freebsd,!dragonfly,!openbsd,!solaris
|
||||
|
||||
package pty
|
||||
|
||||
@ -0,0 +1,74 @@
|
||||
// +build !windows
|
||||
|
||||
package pty
|
||||
|
||||
import (
|
||||
"os"
|
||||
"os/exec"
|
||||
"syscall"
|
||||
)
|
||||
|
||||
// Start assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
|
||||
// and c.Stderr, calls c.Start, and returns the File of the tty's
|
||||
// corresponding pty.
|
||||
//
|
||||
// Starts the process in a new session and sets the controlling terminal.
|
||||
func Start(c *exec.Cmd) (pty *os.File, err error) {
|
||||
return StartWithSize(c, nil)
|
||||
}
|
||||
|
||||
// StartWithSize assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
|
||||
// and c.Stderr, calls c.Start, and returns the File of the tty's
|
||||
// corresponding pty.
|
||||
//
|
||||
// This will resize the pty to the specified size before starting the command.
|
||||
// Starts the process in a new session and sets the controlling terminal.
|
||||
func StartWithSize(c *exec.Cmd, sz *Winsize) (pty *os.File, err error) {
|
||||
if c.SysProcAttr == nil {
|
||||
c.SysProcAttr = &syscall.SysProcAttr{}
|
||||
}
|
||||
c.SysProcAttr.Setsid = true
|
||||
c.SysProcAttr.Setctty = true
|
||||
return StartWithAttrs(c, sz, c.SysProcAttr)
|
||||
}
|
||||
|
||||
// StartWithAttrs assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
|
||||
// and c.Stderr, calls c.Start, and returns the File of the tty's
|
||||
// corresponding pty.
|
||||
//
|
||||
// This will resize the pty to the specified size before starting the command if a size is provided.
|
||||
// The `attrs` parameter overrides the one set in c.SysProcAttr.
|
||||
//
|
||||
// This should generally not be needed. Used in some edge cases where it is needed to create a pty
|
||||
// without a controlling terminal.
|
||||
func StartWithAttrs(c *exec.Cmd, sz *Winsize, attrs *syscall.SysProcAttr) (pty *os.File, err error) {
|
||||
pty, tty, err := Open()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer tty.Close()
|
||||
|
||||
if sz != nil {
|
||||
if err := Setsize(pty, sz); err != nil {
|
||||
pty.Close()
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
if c.Stdout == nil {
|
||||
c.Stdout = tty
|
||||
}
|
||||
if c.Stderr == nil {
|
||||
c.Stderr = tty
|
||||
}
|
||||
if c.Stdin == nil {
|
||||
c.Stdin = tty
|
||||
}
|
||||
|
||||
c.SysProcAttr = attrs
|
||||
|
||||
if err := c.Start(); err != nil {
|
||||
_ = pty.Close()
|
||||
return nil, err
|
||||
}
|
||||
return pty, err
|
||||
}
|
||||
@ -0,0 +1,50 @@
|
||||
#!/usr/bin/env sh
|
||||
|
||||
# Test script checking that all expected os/arch compile properly.
|
||||
# Does not actually test the logic, just the compilation so we make sure we don't break code depending on the lib.
|
||||
|
||||
echo2() {
|
||||
echo $@ >&2
|
||||
}
|
||||
|
||||
trap end 0
|
||||
end() {
|
||||
[ "$?" = 0 ] && echo2 "Pass." || (echo2 "Fail."; exit 1)
|
||||
}
|
||||
|
||||
cross() {
|
||||
os=$1
|
||||
shift
|
||||
echo2 "Build for $os."
|
||||
for arch in $@; do
|
||||
echo2 " - $os/$arch"
|
||||
GOOS=$os GOARCH=$arch go build
|
||||
done
|
||||
echo2
|
||||
}
|
||||
|
||||
set -e
|
||||
|
||||
cross linux amd64 386 arm arm64 ppc64 ppc64le s390x mips mipsle mips64 mips64le
|
||||
cross darwin amd64 386 arm arm64
|
||||
cross freebsd amd64 386 arm
|
||||
cross netbsd amd64 386 arm
|
||||
cross openbsd amd64 386 arm arm64
|
||||
cross dragonfly amd64
|
||||
cross solaris amd64
|
||||
|
||||
# Not expected to work but should still compile.
|
||||
cross windows amd64 386 arm
|
||||
|
||||
# TODO: Fix compilation error on openbsd/arm.
|
||||
# TODO: Merge the solaris PR.
|
||||
|
||||
# Some os/arch require a different compiler. Run in docker.
|
||||
if ! hash docker; then
|
||||
# If docker is not present, stop here.
|
||||
return
|
||||
fi
|
||||
|
||||
echo2 "Build for linux."
|
||||
echo2 " - linux/riscv"
|
||||
docker build -t test -f Dockerfile.riscv .
|
||||
@ -0,0 +1,64 @@
|
||||
// +build !windows,!solaris
|
||||
|
||||
package pty
|
||||
|
||||
import (
|
||||
"os"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// InheritSize applies the terminal size of pty to tty. This should be run
|
||||
// in a signal handler for syscall.SIGWINCH to automatically resize the tty when
|
||||
// the pty receives a window size change notification.
|
||||
func InheritSize(pty, tty *os.File) error {
|
||||
size, err := GetsizeFull(pty)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
err = Setsize(tty, size)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Setsize resizes t to s.
|
||||
func Setsize(t *os.File, ws *Winsize) error {
|
||||
return windowRectCall(ws, t.Fd(), syscall.TIOCSWINSZ)
|
||||
}
|
||||
|
||||
// GetsizeFull returns the full terminal size description.
|
||||
func GetsizeFull(t *os.File) (size *Winsize, err error) {
|
||||
var ws Winsize
|
||||
err = windowRectCall(&ws, t.Fd(), syscall.TIOCGWINSZ)
|
||||
return &ws, err
|
||||
}
|
||||
|
||||
// Getsize returns the number of rows (lines) and cols (positions
|
||||
// in each line) in terminal t.
|
||||
func Getsize(t *os.File) (rows, cols int, err error) {
|
||||
ws, err := GetsizeFull(t)
|
||||
return int(ws.Rows), int(ws.Cols), err
|
||||
}
|
||||
|
||||
// Winsize describes the terminal size.
|
||||
type Winsize struct {
|
||||
Rows uint16 // ws_row: Number of rows (in cells)
|
||||
Cols uint16 // ws_col: Number of columns (in cells)
|
||||
X uint16 // ws_xpixel: Width in pixels
|
||||
Y uint16 // ws_ypixel: Height in pixels
|
||||
}
|
||||
|
||||
func windowRectCall(ws *Winsize, fd, a2 uintptr) error {
|
||||
_, _, errno := syscall.Syscall(
|
||||
syscall.SYS_IOCTL,
|
||||
fd,
|
||||
a2,
|
||||
uintptr(unsafe.Pointer(ws)),
|
||||
)
|
||||
if errno != 0 {
|
||||
return syscall.Errno(errno)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
@ -0,0 +1,51 @@
|
||||
//
|
||||
|
||||
package pty
|
||||
|
||||
import (
|
||||
"os"
|
||||
"golang.org/x/sys/unix"
|
||||
)
|
||||
|
||||
const (
|
||||
TIOCGWINSZ = 21608 // 'T' << 8 | 104
|
||||
TIOCSWINSZ = 21607 // 'T' << 8 | 103
|
||||
)
|
||||
|
||||
// Winsize describes the terminal size.
|
||||
type Winsize struct {
|
||||
Rows uint16 // ws_row: Number of rows (in cells)
|
||||
Cols uint16 // ws_col: Number of columns (in cells)
|
||||
X uint16 // ws_xpixel: Width in pixels
|
||||
Y uint16 // ws_ypixel: Height in pixels
|
||||
}
|
||||
|
||||
// GetsizeFull returns the full terminal size description.
|
||||
func GetsizeFull(t *os.File) (size *Winsize, err error) {
|
||||
var wsz *unix.Winsize
|
||||
wsz, err = unix.IoctlGetWinsize(int(t.Fd()), TIOCGWINSZ)
|
||||
|
||||
if err != nil {
|
||||
return nil, err
|
||||
} else {
|
||||
return &Winsize{wsz.Row, wsz.Col, wsz.Xpixel, wsz.Ypixel}, nil
|
||||
}
|
||||
}
|
||||
|
||||
// Get Windows Size
|
||||
func Getsize(t *os.File) (rows, cols int, err error) {
|
||||
var wsz *unix.Winsize
|
||||
wsz, err = unix.IoctlGetWinsize(int(t.Fd()), TIOCGWINSZ)
|
||||
|
||||
if err != nil {
|
||||
return 80, 25, err
|
||||
} else {
|
||||
return int(wsz.Row), int(wsz.Col), nil
|
||||
}
|
||||
}
|
||||
|
||||
// Setsize resizes t to s.
|
||||
func Setsize(t *os.File, ws *Winsize) error {
|
||||
wsz := unix.Winsize{ws.Rows, ws.Cols, ws.X, ws.Y}
|
||||
return unix.IoctlSetWinsize(int(t.Fd()), TIOCSWINSZ, &wsz)
|
||||
}
|
||||
@ -0,0 +1,13 @@
|
||||
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
|
||||
// cgo -godefs types_freebsd.go
|
||||
|
||||
package pty
|
||||
|
||||
const (
|
||||
_C_SPECNAMELEN = 0xff
|
||||
)
|
||||
|
||||
type fiodgnameArg struct {
|
||||
Len int32
|
||||
Buf *byte
|
||||
}
|
||||
@ -0,0 +1,13 @@
|
||||
// +build openbsd
|
||||
// +build 386 amd64 arm arm64
|
||||
|
||||
package pty
|
||||
|
||||
type ptmget struct {
|
||||
Cfd int32
|
||||
Sfd int32
|
||||
Cn [16]int8
|
||||
Sn [16]int8
|
||||
}
|
||||
|
||||
var ioctl_PTMGET = 0x40287401
|
||||
@ -0,0 +1,11 @@
|
||||
// Code generated by cmd/cgo -godefs; DO NOT EDIT.
|
||||
// cgo -godefs types.go
|
||||
|
||||
// +build riscv riscv64
|
||||
|
||||
package pty
|
||||
|
||||
type (
|
||||
_C_int int32
|
||||
_C_uint uint32
|
||||
)
|
||||
@ -1,36 +0,0 @@
|
||||
# pty
|
||||
|
||||
Pty is a Go package for using unix pseudo-terminals.
|
||||
|
||||
## Install
|
||||
|
||||
go get github.com/kr/pty
|
||||
|
||||
## Example
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
"github.com/kr/pty"
|
||||
"io"
|
||||
"os"
|
||||
"os/exec"
|
||||
)
|
||||
|
||||
func main() {
|
||||
c := exec.Command("grep", "--color=auto", "bar")
|
||||
f, err := pty.Start(c)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
go func() {
|
||||
f.Write([]byte("foo\n"))
|
||||
f.Write([]byte("bar\n"))
|
||||
f.Write([]byte("baz\n"))
|
||||
f.Write([]byte{4}) // EOT
|
||||
}()
|
||||
io.Copy(os.Stdout, f)
|
||||
}
|
||||
```
|
||||
@ -1,34 +0,0 @@
|
||||
// +build !windows
|
||||
|
||||
package pty
|
||||
|
||||
import (
|
||||
"os"
|
||||
"os/exec"
|
||||
"syscall"
|
||||
)
|
||||
|
||||
// Start assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
|
||||
// and c.Stderr, calls c.Start, and returns the File of the tty's
|
||||
// corresponding pty.
|
||||
func Start(c *exec.Cmd) (pty *os.File, err error) {
|
||||
pty, tty, err := Open()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer tty.Close()
|
||||
c.Stdout = tty
|
||||
c.Stdin = tty
|
||||
c.Stderr = tty
|
||||
if c.SysProcAttr == nil {
|
||||
c.SysProcAttr = &syscall.SysProcAttr{}
|
||||
}
|
||||
c.SysProcAttr.Setctty = true
|
||||
c.SysProcAttr.Setsid = true
|
||||
err = c.Start()
|
||||
if err != nil {
|
||||
pty.Close()
|
||||
return nil, err
|
||||
}
|
||||
return pty, err
|
||||
}
|
||||
@ -1,64 +0,0 @@
|
||||
// +build !windows
|
||||
|
||||
package pty
|
||||
|
||||
import (
|
||||
"os"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// Getsize returns the number of rows (lines) and cols (positions
|
||||
// in each line) in terminal t.
|
||||
func Getsize(t *os.File) (rows, cols int, err error) {
|
||||
var ws winsize
|
||||
err = getwindowrect(&ws, t.Fd())
|
||||
return int(ws.ws_row), int(ws.ws_col), err
|
||||
}
|
||||
|
||||
// Setsize sets the number of rows (lines) and cols (positions
|
||||
// in each line) in terminal t. Both rows and cols have to be
|
||||
// positive integers.
|
||||
func Setsize(t *os.File, rows, cols int) error {
|
||||
ws := winsize{
|
||||
ws_col: uint16(cols),
|
||||
ws_row: uint16(rows),
|
||||
ws_xpixel: uint16(0), // not used
|
||||
ws_ypixel: uint16(0), // not used
|
||||
}
|
||||
|
||||
return setwindowrect(&ws, t.Fd())
|
||||
}
|
||||
|
||||
type winsize struct {
|
||||
ws_row uint16
|
||||
ws_col uint16
|
||||
ws_xpixel uint16
|
||||
ws_ypixel uint16
|
||||
}
|
||||
|
||||
func getwindowrect(ws *winsize, fd uintptr) error {
|
||||
_, _, errno := syscall.Syscall(
|
||||
syscall.SYS_IOCTL,
|
||||
fd,
|
||||
syscall.TIOCGWINSZ,
|
||||
uintptr(unsafe.Pointer(ws)),
|
||||
)
|
||||
if errno != 0 {
|
||||
return syscall.Errno(errno)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func setwindowrect(ws *winsize, fd uintptr) error {
|
||||
_, _, errno := syscall.Syscall(
|
||||
syscall.SYS_IOCTL,
|
||||
fd,
|
||||
syscall.TIOCSWINSZ,
|
||||
uintptr(unsafe.Pointer(ws)),
|
||||
)
|
||||
if errno != 0 {
|
||||
return syscall.Errno(errno)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
Loading…
Reference in New Issue