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#1795 use unix.IoctlGetWinsize to get terminal size

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This commit is contained in:
Michael Kötter 2018-05-27 23:44:48 +02:00
parent 0183fea926
commit 589c23dc23
1 changed files with 5 additions and 6 deletions
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11
internal/ui/termstatus/terminal_unix.go
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@ -4,8 +4,8 @@ package termstatus
import ( import (
"io" "io"
"syscall"
"unsafe" "golang.org/x/sys/unix"
isatty "github.com/mattn/go-isatty" isatty "github.com/mattn/go-isatty"
) )
@ -30,10 +30,9 @@ func canUpdateStatus(fd uintptr) bool {
// getTermSize returns the dimensions of the given terminal. // getTermSize returns the dimensions of the given terminal.
// the code is taken from "golang.org/x/crypto/ssh/terminal" // the code is taken from "golang.org/x/crypto/ssh/terminal"
func getTermSize(fd uintptr) (width, height int, err error) { func getTermSize(fd uintptr) (width, height int, err error) {
var dimensions [4]uint16 ws, err := unix.IoctlGetWinsize(int(fd), unix.TIOCGWINSZ)
if err != nil {
if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, uintptr(syscall.TIOCGWINSZ), uintptr(unsafe.Pointer(&dimensions)), 0, 0, 0); err != 0 {
return -1, -1, err return -1, -1, err
} }
return int(dimensions[1]), int(dimensions[0]), nil return int(ws.Col), int(ws.Row), nil
} }