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#
# Author:: Doug MacEachern (<dougm@vmware.com>)
# Copyright:: Copyright (c) 2010 VMware, 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/util/windows'
#wrapper around a subset of the NetGroup* APIs.
#nothing Chef specific, but not complete enough to be its own gem, so util for now.
class Chef::Util::Windows::NetGroup < Chef::Util::Windows
private
def pack_str(s)
[str_to_ptr(s)].pack('L')
end
def modify_members(members, func)
buffer = 0.chr * (members.size * PTR_SIZE)
members.each_with_index do |member,offset|
buffer[offset*PTR_SIZE,PTR_SIZE] = pack_str(multi_to_wide(member))
end
rc = func.call(nil, @name, 3, buffer, members.size)
if rc != NERR_Success
raise ArgumentError, get_last_error(rc)
end
end
public
def initialize(groupname)
@name = multi_to_wide(groupname)
end
def local_get_members
group_members = []
handle = 0.chr * PTR_SIZE
rc = ERROR_MORE_DATA
while rc == ERROR_MORE_DATA
ptr = 0.chr * PTR_SIZE
nread = 0.chr * PTR_SIZE
total = 0.chr * PTR_SIZE
rc = NetLocalGroupGetMembers.call(nil, @name, 1, ptr, -1,
nread, total, handle)
if (rc == NERR_Success) || (rc == ERROR_MORE_DATA)
ptr = ptr.unpack('L')[0]
nread = nread.unpack('i')[0]
members = 0.chr * (nread * (PTR_SIZE * 3)) #nread * sizeof(LOCALGROUP_MEMBERS_INFO_1)
memcpy(members, ptr, members.size)
#3 pointer fields in LOCALGROUP_MEMBERS_INFO_1, offset 2*PTR_SIZE is lgrmi1_name
nread.times do |i|
offset = (i * 3) + 2
member = lpwstr_to_s(members, offset)
group_members << member
end
NetApiBufferFree(ptr)
else
raise ArgumentError, get_last_error(rc)
end
end
group_members
end
def local_add
rc = NetLocalGroupAdd.call(nil, 0, pack_str(@name), nil)
if rc != NERR_Success
raise ArgumentError, get_last_error(rc)
end
end
def local_set_members(members)
modify_members(members, NetLocalGroupSetMembers)
end
def local_add_members(members)
modify_members(members, NetLocalGroupAddMembers)
end
def local_delete
rc = NetLocalGroupDel.call(nil, @name)
if rc != NERR_Success
raise ArgumentError, get_last_error(rc)
end
end
end
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