func getxattr(path string, attr string, dest []byte, pos int, options int) (sz int, err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var _p1 *byte
	_p1, err = syscall.BytePtrFromString(attr)
	if err != nil {
		return
	}
	var _p2 unsafe.Pointer
	if len(dest) > 0 {
		_p2 = unsafe.Pointer(&dest[0])
	} else {
		_p2 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := syscall.Syscall6(syscall.SYS_GETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(dest)), uintptr(pos), uintptr(options))
	use(unsafe.Pointer(_p0))
	use(unsafe.Pointer(_p1))
	sz = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}
func setxattr(path string, attr string, data []byte, flags int) (err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var _p1 *byte
	_p1, err = syscall.BytePtrFromString(attr)
	if err != nil {
		return
	}
	var _p2 unsafe.Pointer
	if len(data) > 0 {
		_p2 = unsafe.Pointer(&data[0])
	} else {
		_p2 = unsafe.Pointer(&_zero)
	}
	_, _, e1 := syscall.Syscall6(syscall.SYS_SETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(data)), uintptr(flags), 0)
	use(unsafe.Pointer(_p0))
	use(unsafe.Pointer(_p1))
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}
Example #3
0
func (this Lua) LoadBufferX(title string, chank []byte, mode string) error {
	if this == 0 {
		return errors.New("lua.LoadBufferX: this is null.")
	}
	title_ptr, title_err := syscall.BytePtrFromString(title)
	if title_err != nil {
		return title_err
	}
	mode_ptr, mode_err := syscall.BytePtrFromString(mode)
	if mode_err != nil {
		return mode_err
	}

	rc, _, _ := luaL_loadbufferx.Call(
		this.State(),
		uintptr(unsafe.Pointer(&chank[0])),
		uintptr(len(chank)),
		uintptr(unsafe.Pointer(title_ptr)),
		uintptr(unsafe.Pointer(mode_ptr)))
	if rc == 0 {
		return nil
	} else {
		return fmt.Errorf("LUA_ERROR(%d)", rc)
	}
}
Example #4
0
func add_key(keyType, keyDesc string, payload []byte, id int32) (int32, error) {
	var (
		err    error
		errno  syscall.Errno
		b1, b2 *byte
		r1     uintptr
		pptr   unsafe.Pointer
	)

	if b1, err = syscall.BytePtrFromString(keyType); err != nil {
		return 0, err
	}

	if b2, err = syscall.BytePtrFromString(keyDesc); err != nil {
		return 0, err
	}

	if len(payload) > 0 {
		pptr = unsafe.Pointer(&payload[0])
	}
	r1, _, errno = syscall.Syscall6(syscall_add_key,
		uintptr(unsafe.Pointer(b1)),
		uintptr(unsafe.Pointer(b2)),
		uintptr(pptr),
		uintptr(len(payload)),
		uintptr(id),
		0)

	if errno != 0 {
		err = errno
		return 0, err
	}
	return int32(r1), nil
}
// Darwin doesn't have support for syscall.Getxattr() so we pull it into its own file and implement it by hand on Darwin.
func Getxattr(path string, attr string, dest []byte) (sz int, err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var _p1 *byte
	_p1, err = syscall.BytePtrFromString(attr)
	if err != nil {
		return
	}
	var _p2 unsafe.Pointer
	if len(dest) > 0 {
		_p2 = unsafe.Pointer(&dest[0])
	} else {
		var _zero uintptr
		_p2 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := syscall.Syscall6(syscall.SYS_GETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(dest)), 0, 0)
	sz = int(r0)
	if e1 != 0 {
		err = e1
	}
	return
}
Example #6
0
// Lgetxattr retrieves the value of the extended attribute identified by attr
// and associated with the given path in the file system.
// It will returns a nil slice and nil error if the xattr is not set.
func Lgetxattr(path string, attr string) ([]byte, error) {
	pathBytes, err := syscall.BytePtrFromString(path)
	if err != nil {
		return nil, err
	}
	attrBytes, err := syscall.BytePtrFromString(attr)
	if err != nil {
		return nil, err
	}

	dest := make([]byte, 128)
	destBytes := unsafe.Pointer(&dest[0])
	sz, _, errno := syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
	if errno == syscall.ENODATA {
		return nil, nil
	}
	if errno == syscall.ERANGE {
		dest = make([]byte, sz)
		destBytes := unsafe.Pointer(&dest[0])
		sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
	}
	if errno != 0 {
		return nil, errno
	}

	return dest[:sz], nil
}
Example #7
0
func getVfsCap(path string, dest *vfscapData) (err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	r0, _, e1 := syscall.Syscall6(syscall.SYS_GETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_vfsXattrName)), uintptr(unsafe.Pointer(dest)), vfscapDataSizeV2, 0, 0)
	if e1 != 0 {
		err = e1
	}
	switch dest.magic & vfsCapVerMask {
	case vfsCapVer1:
		dest.version = 1
		if r0 != vfscapDataSizeV1 {
			return syscall.EINVAL
		}
		dest.data[1].permitted = 0
		dest.data[1].inheritable = 0
	case vfsCapVer2:
		dest.version = 2
		if r0 != vfscapDataSizeV2 {
			return syscall.EINVAL
		}
	default:
		return syscall.EINVAL
	}
	if dest.magic&vfsCapFlageffective != 0 {
		dest.effective[0] = dest.data[0].permitted | dest.data[0].inheritable
		dest.effective[1] = dest.data[1].permitted | dest.data[1].inheritable
	} else {
		dest.effective[0] = 0
		dest.effective[1] = 0
	}
	return
}
Example #8
0
func (this Lua) GetGlobal(str string) {
	cstr, err := syscall.BytePtrFromString(str)
	if err != nil {
		panic(err.Error())
	}
	lua_getglobal.Call(this.State(), uintptr(unsafe.Pointer(cstr)))
}
Example #9
0
func (this Lua) GetField(index int, str string) {
	cstr, err := syscall.BytePtrFromString(str)
	if err != nil {
		panic(err.Error())
	}
	lua_getfield.Call(this.State(), uintptr(index), uintptr(unsafe.Pointer(cstr)))
}
Example #10
0
File: ppapi.go Project: payco/llgo
func callPPBGetInterface(g ppbGetInterface, name string) unsafe.Pointer {
	p0, err := syscall.BytePtrFromString(name)
	if err != nil {
		panic(err)
	}
	return _callPPBGetInterface(g, p0)
}
Example #11
0
func setVfsCap(path string, data *vfscapData) (err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var size uintptr
	if data.version == 1 {
		data.magic = vfsCapVer1
		size = vfscapDataSizeV1
	} else if data.version == 2 {
		data.magic = vfsCapVer2
		if data.effective[0] != 0 || data.effective[1] != 0 {
			data.magic |= vfsCapFlageffective
		}
		size = vfscapDataSizeV2
	} else {
		return syscall.EINVAL
	}
	_, _, e1 := syscall.Syscall6(syscall.SYS_SETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_vfsXattrName)), uintptr(unsafe.Pointer(data)), size, 0, 0)
	if e1 != 0 {
		err = e1
	}
	return
}
Example #12
0
func (this Lua) PushString(str string) {
	cstr, err := syscall.BytePtrFromString(str)
	if err != nil {
		panic(err.Error())
	}
	lua_pushstring.Call(this.State(), uintptr(unsafe.Pointer(cstr)))
}
Example #13
0
func searchKeyring(id keyId, name, keyType string) (keyId, error) {
	var (
		r1     int32
		b1, b2 *byte
		err    error
	)

	if b1, err = syscall.BytePtrFromString(keyType); err != nil {
		return 0, err
	}
	if b2, err = syscall.BytePtrFromString(name); err != nil {
		return 0, err
	}

	r1, _, err = keyctl(keyctlSearch, uintptr(id), uintptr(unsafe.Pointer(b1)), uintptr(unsafe.Pointer(b2)))
	return keyId(r1), err
}
func removexattr(path string, attr string, options int) (err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var _p1 *byte
	_p1, err = syscall.BytePtrFromString(attr)
	if err != nil {
		return
	}
	_, _, e1 := syscall.Syscall(syscall.SYS_REMOVEXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(options))
	if e1 != 0 {
		err = e1
	}
	return
}
func getxattr(path string, attr string, dest *byte, size int, position uint32, options int) (sz int, err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var _p1 *byte
	_p1, err = syscall.BytePtrFromString(attr)
	if err != nil {
		return
	}
	r0, _, e1 := syscall.Syscall6(syscall.SYS_GETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(unsafe.Pointer(dest)), uintptr(size), uintptr(position), uintptr(options))
	sz = int(r0)
	if e1 != 0 {
		err = e1
	}
	return
}
func lremovexattr(path string, attr string) (err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	var _p1 *byte
	_p1, err = syscall.BytePtrFromString(attr)
	if err != nil {
		return
	}
	_, _, e1 := syscall.Syscall(syscall.SYS_LREMOVEXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), 0)
	use(unsafe.Pointer(_p0))
	use(unsafe.Pointer(_p1))
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}
Example #17
0
// Returns a []byte slice if the xattr is set and nil otherwise
// Requires path and its attribute as arguments
func Lgetxattr(path string, attr string) ([]byte, error) {
	var sz int
	pathBytes, err := syscall.BytePtrFromString(path)
	if err != nil {
		return nil, err
	}
	attrBytes, err := syscall.BytePtrFromString(attr)
	if err != nil {
		return nil, err
	}

	// Start with a 128 length byte array
	sz = 128
	dest := make([]byte, sz)
	destBytes := unsafe.Pointer(&dest[0])
	_sz, _, errno := syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)

	switch {
	case errno == syscall.ENODATA:
		return nil, errno
	case errno == syscall.ENOTSUP:
		return nil, errno
	case errno == syscall.ERANGE:
		// 128 byte array might just not be good enough,
		// A dummy buffer is used ``uintptr(0)`` to get real size
		// of the xattrs on disk
		_sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(unsafe.Pointer(nil)), uintptr(0), 0, 0)
		sz = int(_sz)
		if sz < 0 {
			return nil, errno
		}
		dest = make([]byte, sz)
		destBytes := unsafe.Pointer(&dest[0])
		_sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
		if errno != 0 {
			return nil, errno
		}
	case errno != 0:
		return nil, errno
	}
	sz = int(_sz)
	return dest[:sz], nil
}
Example #18
0
func BenchmarkSyscallBaseline(b *testing.B) {
	initAdds()
	var r uintptr
	for i := 0; i < b.N; i++ {
		t, _ := syscall.BytePtrFromString("LoadLibraryA")
		r, _, _ = a.Call(h, (uintptr)(unsafe.Pointer(t)))
	}
	if r != control {
		b.Fail()
	}
}
Example #19
0
func TestCDecl(t *testing.T) {
	var buf [50]byte
	fmtp, _ := syscall.BytePtrFromString("%d %d %d")
	a, _, _ := GetDLL(t, "user32.dll").Proc("wsprintfA").Call(
		uintptr(unsafe.Pointer(&buf[0])),
		uintptr(unsafe.Pointer(fmtp)),
		1000, 2000, 3000)
	if string(buf[:a]) != "1000 2000 3000" {
		t.Error("cdecl USER32.wsprintfA returns", a, "buf=", buf[:a])
	}
}
Example #20
0
func Set(name string, value string) error {
	var (
		bptrname  *byte
		bptrvalue *byte
		err       error
	)

	if bptrname, err = syscall.BytePtrFromString(name); err != nil {
		return err
	}

	if bptrvalue, err = syscall.BytePtrFromString(value); err != nil {
		return err
	}

	if _, err = kenv_sys(SET, unsafe.Pointer(bptrname), unsafe.Pointer(bptrvalue), len(value)+1); err != nil {
		return err
	}

	return nil
}
Example #21
0
// Lsetxattr sets the value of the extended attribute identified by attr
// and associated with the given path in the file system.
func Lsetxattr(path string, attr string, data []byte, flags int) error {
	pathBytes, err := syscall.BytePtrFromString(path)
	if err != nil {
		return err
	}
	attrBytes, err := syscall.BytePtrFromString(attr)
	if err != nil {
		return err
	}
	var dataBytes unsafe.Pointer
	if len(data) > 0 {
		dataBytes = unsafe.Pointer(&data[0])
	} else {
		dataBytes = unsafe.Pointer(&_zero)
	}
	_, _, errno := syscall.Syscall6(syscall.SYS_LSETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(dataBytes), uintptr(len(data)), uintptr(flags), 0)
	if errno != 0 {
		return errno
	}
	return nil
}
Example #22
0
func (libcConn) writeString(p Priority, hostname, tag, msg, nl string) error {
	timestamp := time.Now().Format(time.RFC3339)
	log := fmt.Sprintf("%s %s %s[%d]: %s%s", timestamp, hostname, tag, os.Getpid(), msg, nl)
	buf, err := syscall.BytePtrFromString(log)
	if err != nil {
		return err
	}
	syscall.Entersyscall()
	syslog_c(int(p), buf)
	syscall.Exitsyscall()
	return nil
}
Example #23
0
func utimensat(dirfd int, path string, times *[2]syscall.Timespec, flags int) (err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	_, _, e1 := syscall.Syscall6(syscall.SYS_UTIMENSAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(times)), uintptr(flags), 0, 0)
	if e1 != 0 {
		err = e1
	}
	return
}
Example #24
0
File: shm.go Project: fabiokung/shm
func Unlink(regionName string) error {
	name, err := syscall.BytePtrFromString(regionName)
	if err != nil {
		return err
	}
	if _, _, errno := syscall.Syscall(syscall.SYS_SHM_UNLINK,
		uintptr(unsafe.Pointer(name)), 0, 0,
	); errno != 0 {
		return errno
	}
	return nil
}
func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) {
	var _p0 *byte
	_p0, err = syscall.BytePtrFromString(path)
	if err != nil {
		return
	}
	_, _, e1 := syscall.Syscall6(SYS_FCHMODAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(flags), 0, 0)
	use(unsafe.Pointer(_p0))
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}
// LUtimesNano is used to change access and modification time of the specified path.
// It's used for symbol link file because syscall.UtimesNano doesn't support a NOFOLLOW flag atm.
func LUtimesNano(path string, ts []syscall.Timespec) error {
	var _path *byte
	_path, err := syscall.BytePtrFromString(path)
	if err != nil {
		return err
	}

	if _, _, err := syscall.Syscall(syscall.SYS_LUTIMES, uintptr(unsafe.Pointer(_path)), uintptr(unsafe.Pointer(&ts[0])), 0); err != 0 && err != syscall.ENOSYS {
		return err
	}

	return nil
}
Example #27
0
File: shm.go Project: fabiokung/shm
func Open(regionName string, flags int, perm os.FileMode) (*os.File, error) {
	name, err := syscall.BytePtrFromString(regionName)
	if err != nil {
		return nil, err
	}
	fd, _, errno := syscall.Syscall(syscall.SYS_SHM_OPEN,
		uintptr(unsafe.Pointer(name)),
		uintptr(flags), uintptr(perm),
	)
	if errno != 0 {
		return nil, errno
	}
	return os.NewFile(fd, regionName), nil
}
Example #28
0
func (L Lua) LoadFile(path string, mode string) (int, error) {
	fd, err := os.OpenFile(path, os.O_RDONLY, 0666)
	if err != nil {
		return 0, err
	}
	defer fd.Close()

	path_ptr, path_err := syscall.BytePtrFromString(path)
	if path_err != nil {
		return 0, err
	}
	mode_ptr, mode_err := syscall.BytePtrFromString(mode)
	if mode_err != nil {
		return 0, err
	}
	callback := syscall.NewCallbackCDecl(callback_reader)
	load_buffer_mutex.Lock()
	defer load_buffer_mutex.Unlock()
	rc, _, _ := lua_load.Call(
		L.State(),
		callback,
		uintptr(unsafe.Pointer(fd)),
		uintptr(unsafe.Pointer(path_ptr)),
		uintptr(unsafe.Pointer(mode_ptr)))

	if rc == LUA_OK {
		return 0, nil
	} else if rc == LUA_ERRSYNTAX {
		return LUA_ERRSYNTAX, errors.New("lua_load: LUA_ERRSYNTAX")
	} else if rc == LUA_ERRMEM {
		return LUA_ERRMEM, errors.New("lua_load: LUA_ERRMEM")
	} else if rc == LUA_ERRGCMM {
		return LUA_ERRGCMM, errors.New("lua_load: LUA_ERRGCMM")
	} else {
		return int(rc), fmt.Errorf("lua_load: returns %d", rc)
	}
}
Example #29
0
func getVfsStats(path string) (total uint64, free uint64, err error) {
	_p0, err := syscall.BytePtrFromString(path)
	if err != nil {
		return 0, 0, err
	}
	res, err := C.getBytesFree((*C.char)(unsafe.Pointer(_p0)), (*_Ctype_ulonglong)(unsafe.Pointer(&free)))
	if res != 0 {
		return 0, 0, err
	}
	res, err = C.getBytesTotal((*C.char)(unsafe.Pointer(_p0)), (*_Ctype_ulonglong)(unsafe.Pointer(&total)))
	if res != 0 {
		return 0, 0, err
	}
	return total, free, nil
}
Example #30
-1
// Delete the actual bridge device.
func DeleteBridge(name string) error {
	s, err := getIfSocket()
	if err != nil {
		return err
	}
	defer syscall.Close(s)

	nameBytePtr, err := syscall.BytePtrFromString(name)
	if err != nil {
		return err
	}

	var ifr ifreqFlags
	copy(ifr.IfrnName[:len(ifr.IfrnName)-1], []byte(name))
	if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(s),
		syscall.SIOCSIFFLAGS, uintptr(unsafe.Pointer(&ifr))); err != 0 {
		return err
	}

	if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(s),
		SIOC_BRDELBR, uintptr(unsafe.Pointer(nameBytePtr))); err != 0 {
		return err
	}
	return nil
}