sctypes.py 文件源码

def utf16tostr(addr, size=-1):
    """Read UTF-16 string from memory and encode as python string."""
    cb = size if size > 0 else 32
    bstr = ctypes.string_at(addr, cb)
    if size >= 0:
        return bstr.decode('utf-16le')

    # lookup zero char
    chunks = []
    while True:
        found = cb
        for i in range(0, cb, 2):
            c = bstr[i]
            if c == 0x00:
                found = i
                break
            pass
        assert found % 2 == 0, "truncated string with len " + str(found)
        chunks.append(bstr[0:found].decode('utf-16le'))
        if found != cb:
            break
        addr = addr + cb
        bstr = ctypes.string_at(addr, cb)
        continue
    return "".join(chunks)