| // +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 |
| } |