45616510e1
Signed-off-by: Amit Krishnan <krish.amit@gmail.com> Upstream-commit: b216dc9115ebc0b803551ff761f5464fcbde09e1 Component: engine
64 lines
1.8 KiB
Go
64 lines
1.8 KiB
Go
// +build solaris,cgo
|
|
|
|
package term
|
|
|
|
import (
|
|
"syscall"
|
|
"unsafe"
|
|
)
|
|
|
|
// #include <termios.h>
|
|
import "C"
|
|
|
|
// Termios is the Unix API for terminal I/O.
|
|
// It is passthrough for syscall.Termios in order to make it portable with
|
|
// other platforms where it is not available or handled differently.
|
|
type Termios syscall.Termios
|
|
|
|
// MakeRaw put the terminal connected to the given file descriptor into raw
|
|
// mode and returns the previous state of the terminal so that it can be
|
|
// restored.
|
|
func MakeRaw(fd uintptr) (*State, error) {
|
|
var oldState State
|
|
if err := tcget(fd, &oldState.termios); err != 0 {
|
|
return nil, err
|
|
}
|
|
|
|
newState := oldState.termios
|
|
|
|
newState.Iflag &^= (syscall.IGNBRK | syscall.BRKINT | syscall.PARMRK | syscall.ISTRIP | syscall.INLCR | syscall.IGNCR | syscall.ICRNL | syscall.IXON | syscall.IXANY)
|
|
newState.Oflag &^= syscall.OPOST
|
|
newState.Lflag &^= (syscall.ECHO | syscall.ECHONL | syscall.ICANON | syscall.ISIG | syscall.IEXTEN)
|
|
newState.Cflag &^= (syscall.CSIZE | syscall.PARENB)
|
|
newState.Cflag |= syscall.CS8
|
|
|
|
/*
|
|
VMIN is the minimum number of characters that needs to be read in non-canonical mode for it to be returned
|
|
Since VMIN is overloaded with another element in canonical mode when we switch modes it defaults to 4. It
|
|
needs to be explicitly set to 1.
|
|
*/
|
|
newState.Cc[C.VMIN] = 1
|
|
newState.Cc[C.VTIME] = 0
|
|
|
|
if err := tcset(fd, &newState); err != 0 {
|
|
return nil, err
|
|
}
|
|
return &oldState, nil
|
|
}
|
|
|
|
func tcget(fd uintptr, p *Termios) syscall.Errno {
|
|
ret, err := C.tcgetattr(C.int(fd), (*C.struct_termios)(unsafe.Pointer(p)))
|
|
if ret != 0 {
|
|
return err.(syscall.Errno)
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func tcset(fd uintptr, p *Termios) syscall.Errno {
|
|
ret, err := C.tcsetattr(C.int(fd), C.TCSANOW, (*C.struct_termios)(unsafe.Pointer(p)))
|
|
if ret != 0 {
|
|
return err.(syscall.Errno)
|
|
}
|
|
return 0
|
|
}
|