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require 'ffi'
raise LoadError.new("native console only supported on i386, x86_64 and powerpc64") unless FFI::Platform::ARCH =~ /i386|x86_64|powerpc64/
module IO::LibC
extend FFI::Library
ffi_lib FFI::Library::LIBC
typedef :uint, :tcflag_t
typedef :uint, :speed_t
VINTR = 0
VQUIT = 1
VERASE = 2
VKILL = 3
VEOF = 4
VTIME = 5
VMIN = 6
VSWTC = 7
VSTART = 8
VSTOP = 9
VSUSP = 10
VEOL = 11
VREPRINT = 12
VDISCARD = 13
VWERASE = 14
VLNEXT = 15
VEOL2 = 16
# c_iflag bits
IGNBRK = 0000001
BRKINT = 0000002
IGNPAR = 0000004
PARMRK = 0000010
INPCK = 0000020
ISTRIP = 0000040
INLCR = 0000100
IGNCR = 0000200
ICRNL = 0000400
IUCLC = 0001000
IXON = 0002000
IXANY = 0004000
IXOFF = 0010000
IMAXBEL = 0020000
IUTF8 = 0040000
# c_oflag bits
OPOST = 0000001
OLCUC = 0000002
ONLCR = 0000004
OCRNL = 0000010
ONOCR = 0000020
ONLRET = 0000040
OFILL = 0000100
OFDEL = 0000200
NLDLY = 0000400
NL0 = 0000000
NL1 = 0000400
CRDLY = 0003000
CR0 = 0000000
CR1 = 0001000
CR2 = 0002000
CR3 = 0003000
TABDLY = 0014000
TAB0 = 0000000
TAB1 = 0004000
TAB2 = 0010000
TAB3 = 0014000
XTABS = 0014000
BSDLY = 0020000
BS0 = 0000000
BS1 = 0020000
VTDLY = 0040000
VT0 = 0000000
VT1 = 0040000
FFDLY = 0100000
FF0 = 0000000
FF1 = 0100000
# c_cflag bit meaning
CBAUD = 0010017
B0 = 0000000
B50 = 0000001
B75 = 0000002
B110 = 0000003
B134 = 0000004
B150 = 0000005
B200 = 0000006
B300 = 0000007
B600 = 0000010
B1200 = 0000011
B1800 = 0000012
B2400 = 0000013
B4800 = 0000014
B9600 = 0000015
B19200 = 0000016
B38400 = 0000017
EXTA = B19200
EXTB = B38400
CSIZE = 0000060
CS5 = 0000000
CS6 = 0000020
CS7 = 0000040
CS8 = 0000060
CSTOPB = 0000100
CREAD = 0000200
PARENB = 0000400
PARODD = 0001000
HUPCL = 0002000
CLOCAL = 0004000
CBAUDEX = 0010000
BOTHER = 0010000
B57600 = 0010001
B115200 = 0010002
B230400 = 0010003
B460800 = 0010004
B500000 = 0010005
B576000 = 0010006
B921600 = 0010007
B1000000 = 0010010
B1152000 = 0010011
B1500000 = 0010012
B2000000 = 0010013
B2500000 = 0010014
B3000000 = 0010015
B3500000 = 0010016
B4000000 = 0010017
CIBAUD = 002003600000
CMSPAR = 010000000000
CRTSCTS = 020000000000
IBSHIFT = 16
# c_lflag bits
ISIG = 0000001
ICANON = 0000002
XCASE = 0000004
ECHO = 0000010
ECHOE = 0000020
ECHOK = 0000040
ECHONL = 0000100
NOFLSH = 0000200
TOSTOP = 0000400
ECHOCTL = 0001000
ECHOPRT = 0002000
ECHOKE = 0004000
FLUSHO = 0010000
PENDIN = 0040000
IEXTEN = 0100000
# tcflow() and TCXONC use these
TCOOFF = 0
TCOON = 1
TCIOFF = 2
TCION = 3
# tcflush() and TCFLSH use these
TCIFLUSH = 0
TCOFLUSH = 1
TCIOFLUSH = 2
# tcsetattr uses these
TCSANOW = 0
TCSADRAIN = 1
TCSAFLUSH = 2
NCCS = 19
class Termios < FFI::Struct
layout \
:c_iflag, :tcflag_t,
:c_oflag, :tcflag_t,
:c_cflag, :tcflag_t,
:c_lflag, :tcflag_t,
:c_line, :uchar,
:cc_c, [ :uchar, NCCS ],
:c_ispeed, :speed_t,
:c_ospeed, :speed_t
end
class Winsize < FFI::Struct
layout \
:ws_row, :ushort,
:ws_col, :ushort,
:ws_xpixel, :ushort,
:ws_ypixel, :ushort
end
TIOCGWINSZ = 0x5413
TIOCSWINSZ = 0x5414
attach_function :tcsetattr, [ :int, :int, Termios ], :int
attach_function :tcgetattr, [ :int, Termios ], :int
attach_function :cfgetispeed, [ Termios ], :speed_t
attach_function :cfgetospeed, [ Termios ], :speed_t
attach_function :cfsetispeed, [ Termios, :speed_t ], :int
attach_function :cfsetospeed, [ Termios, :speed_t ], :int
attach_function :cfmakeraw, [ Termios ], :int
attach_function :tcflush, [ :int, :int ], :int
attach_function :ioctl, [ :int, :ulong, :varargs ], :int
end
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