1//go:build (darwin || dragonfly || freebsd || netbsd || openbsd) 2//+build darwin dragonfly freebsd netbsd openbsd 3 4package pty 5 6// from <sys/ioccom.h> 7const ( 8 _IOC_VOID uintptr = 0x20000000 9 _IOC_OUT uintptr = 0x40000000 10 _IOC_IN uintptr = 0x80000000 11 _IOC_IN_OUT uintptr = _IOC_OUT | _IOC_IN 12 _IOC_DIRMASK = _IOC_VOID | _IOC_OUT | _IOC_IN 13 14 _IOC_PARAM_SHIFT = 13 15 _IOC_PARAM_MASK = (1 << _IOC_PARAM_SHIFT) - 1 16) 17 18func _IOC_PARM_LEN(ioctl uintptr) uintptr { 19 return (ioctl >> 16) & _IOC_PARAM_MASK 20} 21 22func _IOC(inout uintptr, group byte, ioctl_num uintptr, param_len uintptr) uintptr { 23 return inout | (param_len&_IOC_PARAM_MASK)<<16 | uintptr(group)<<8 | ioctl_num 24} 25 26func _IO(group byte, ioctl_num uintptr) uintptr { 27 return _IOC(_IOC_VOID, group, ioctl_num, 0) 28} 29 30func _IOR(group byte, ioctl_num uintptr, param_len uintptr) uintptr { 31 return _IOC(_IOC_OUT, group, ioctl_num, param_len) 32} 33 34func _IOW(group byte, ioctl_num uintptr, param_len uintptr) uintptr { 35 return _IOC(_IOC_IN, group, ioctl_num, param_len) 36} 37 38func _IOWR(group byte, ioctl_num uintptr, param_len uintptr) uintptr { 39 return _IOC(_IOC_IN_OUT, group, ioctl_num, param_len) 40} 41