/*
Decode a binary key from Z85 printable text
See: http://api.zeromq.org/4-1:zmq-z85-decode
*/
func Z85decode(s string) string {
l1 := len(s)
if l1%5 != 0 {
panic("Z85decode: Length of Z85 string not a multiple of 5")
}
l2 := 4 * l1 / 5
dest := make([]byte, l2)
cs := C.CString(s)
defer C.free(unsafe.Pointer(cs))
C.zmq_z85_decode((*C.uint8_t)(&dest[0]), cs)
return string(dest)
}
func z85Validate(z85 string) bool {
var decoded []C.uint8_t
if len(z85)%5 != 0 {
return false
} else {
// Avoid literal floats
decoded = make([]C.uint8_t, 8*len(z85)/10)
}
// Grab a CString of the z85 we need to decode
c_z85 := C.CString(z85)
defer C.free(unsafe.Pointer(c_z85))
// Because gozmq does not yet expose this for us, we have to expose it ourselves
if ret := C.zmq_z85_decode(&decoded[0], c_z85); ret == nil {
return false
}
return true
}