class FFI::Pointer
Public Instance Methods
Source
# File lib/facter/resolvers/windows/ffi/ffi.rb, line 30 def read_wide_string_with_length(char_length) # char_length is number of wide chars (typically excluding NULLs), *not* bytes str = get_bytes(0, char_length * 2).force_encoding(Encoding::UTF_16LE) str.encode(Encoding::UTF_8, str.encoding) end
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# File lib/facter/resolvers/windows/ffi/ffi.rb, line 36 def read_wide_string_without_length(replace_invalid_chars: false) wide_character = get_bytes(0, 2) wide_character.force_encoding(Encoding::UTF_16LE) i = 2 str = [] while wide_character != END_OF_WCHAR_STRING str << wide_character wide_character = get_bytes(i, 2) wide_character.force_encoding(Encoding::UTF_16LE) i += 2 end if replace_invalid_chars str.join.force_encoding(Encoding::UTF_16LE).encode(Encoding::UTF_8, Encoding::UTF_16LE, invalid: :replace) else str.join.force_encoding(Encoding::UTF_16LE).encode(Encoding::UTF_8) end end
Source
# File lib/facter/resolvers/windows/ffi/ffi.rb, line 56 def read_win32_bool # BOOL is always a 32-bit integer in Win32 # some Win32 APIs return 1 for true, while others are non-0 read_int32 != WIN32FALSE end