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moby--moby/pkg/term/winsize.go
Christopher Jones 1c94c264c4
Rename term to winsize, tc_other to tc
Signed-off-by: Christopher Jones <tophj@linux.vnet.ibm.com>
2017-05-16 11:46:17 -04:00

30 lines
715 B
Go

// +build !solaris,!windows
package term
import (
"unsafe"
"golang.org/x/sys/unix"
)
// GetWinsize returns the window size based on the specified file descriptor.
func GetWinsize(fd uintptr) (*Winsize, error) {
ws := &Winsize{}
_, _, err := unix.Syscall(unix.SYS_IOCTL, fd, uintptr(unix.TIOCGWINSZ), uintptr(unsafe.Pointer(ws)))
// Skipp errno = 0
if err == 0 {
return ws, nil
}
return ws, err
}
// SetWinsize tries to set the specified window size for the specified file descriptor.
func SetWinsize(fd uintptr, ws *Winsize) error {
_, _, err := unix.Syscall(unix.SYS_IOCTL, fd, uintptr(unix.TIOCSWINSZ), uintptr(unsafe.Pointer(ws)))
// Skipp errno = 0
if err == 0 {
return nil
}
return err
}