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Fix term.RestoreTerminal behavior

This commit is contained in:
Guillaume J. Charmes 2013-11-29 09:52:44 -08:00
parent 63d6cbe3e4
commit aa68656cd3
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GPG Key ID: B33E4642CB6E3FF3
1 changed files with 12 additions and 1 deletions
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13
term/term.go
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@ -1,12 +1,17 @@
package term package term
import ( import (
"errors"
"os" "os"
"os/signal" "os/signal"
"syscall" "syscall"
"unsafe" "unsafe"
) )
var (
ErrInvalidState = errors.New("Invlide terminal state")
)
type State struct { type State struct {
termios Termios termios Termios
} }
@ -47,8 +52,14 @@ func IsTerminal(fd uintptr) bool {
// Restore restores the terminal connected to the given file descriptor to a // Restore restores the terminal connected to the given file descriptor to a
// previous state. // previous state.
func RestoreTerminal(fd uintptr, state *State) error { func RestoreTerminal(fd uintptr, state *State) error {
if state == nil {
return ErrInvalidState
}
_, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, uintptr(setTermios), uintptr(unsafe.Pointer(&state.termios))) _, _, err := syscall.Syscall(syscall.SYS_IOCTL, fd, uintptr(setTermios), uintptr(unsafe.Pointer(&state.termios)))
return err if err != 0 {
return err
}
return nil
} }
func SaveState(fd uintptr) (*State, error) { func SaveState(fd uintptr) (*State, error) {