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#
# Author:: John Keiser (<jkeiser@opscode.com>)
# Author:: Seth Chisamore (<schisamo@opscode.com>)
# Copyright:: Copyright 2011 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'chef/win32/api/unicode'
class Chef
module ReservedNames::Win32
class Unicode
include Chef::ReservedNames::Win32::API::Unicode
extend Chef::ReservedNames::Win32::API::Unicode
end
end
end
module FFI
class Pointer
def read_wstring(num_wchars = nil)
if num_wchars.nil?
num_wchars = get_wstring_len
end
Chef::ReservedNames::Win32::Unicode.wide_to_utf8(self.get_bytes(0, num_wchars*2))
end
def read_array_of_wstring
result = []
read_head_ptr = Pointer.new(address)
num_wchars = read_head_ptr.get_wstring_len
# read until we hit the final null terminating character
while num_wchars > 1
result << read_head_ptr.read_wstring(num_wchars)
read_head_ptr = read_head_ptr + (num_wchars * 2)
num_wchars = read_head_ptr.get_wstring_len
end
result
end
def get_wstring_len
# Find the length of the string
length = 0
last_char = nil
while last_char != "\000\000" do
length += 1
last_char = self.get_bytes(0,length * 2)[-2..-1]
end
length
end
end
end
class String
def to_wstring
Chef::ReservedNames::Win32::Unicode.utf8_to_wide(self)
end
end
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