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PrivilegeUtil: use native methods to get pointer offset (#43461)

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This commit is contained in:
Jordan Borean 2018-07-31 08:33:49 +10:00 committed by ansibot
parent 240b65ddda
commit d115794bf7
1 changed files with 6 additions and 6 deletions
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12
lib/ansible/module_utils/powershell/Ansible.ModuleUtils.PrivilegeUtil.psm1
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@ -166,7 +166,7 @@ namespace Ansible.PrivilegeUtil
NativeHelpers.TOKEN_PRIVILEGES privilegeInfo = (NativeHelpers.TOKEN_PRIVILEGES)Marshal.PtrToStructure(privilegesPtr, typeof(NativeHelpers.TOKEN_PRIVILEGES));
privileges = new NativeHelpers.LUID_AND_ATTRIBUTES[privilegeInfo.PrivilegeCount];
PtrToStructureArray(privileges, privilegesPtr.ToInt64() + Marshal.SizeOf(privilegeInfo.PrivilegeCount));
PtrToStructureArray(privileges, IntPtr.Add(privilegesPtr, Marshal.SizeOf(privilegeInfo.PrivilegeCount)));
}
finally
{
@ -301,7 +301,7 @@ namespace Ansible.PrivilegeUtil
// Marshal the oldStatePtr to the struct
NativeHelpers.TOKEN_PRIVILEGES oldState = (NativeHelpers.TOKEN_PRIVILEGES)Marshal.PtrToStructure(oldStatePtr, typeof(NativeHelpers.TOKEN_PRIVILEGES));
oldStatePrivileges = new NativeHelpers.LUID_AND_ATTRIBUTES[oldState.PrivilegeCount];
PtrToStructureArray(oldStatePrivileges, oldStatePtr.ToInt64() + Marshal.SizeOf(oldState.PrivilegeCount));
PtrToStructureArray(oldStatePrivileges, IntPtr.Add(oldStatePtr, Marshal.SizeOf(oldState.PrivilegeCount)));
}
finally
{
@ -334,11 +334,11 @@ namespace Ansible.PrivilegeUtil
return name.ToString();
}
private static void PtrToStructureArray<T>(T[] array, Int64 pointerAddress)
private static void PtrToStructureArray<T>(T[] array, IntPtr ptr)
{
Int64 pointerOffset = pointerAddress;
for (int i = 0; i < array.Length; i++, pointerOffset += Marshal.SizeOf(typeof(T)))
array[i] = (T)Marshal.PtrToStructure(new IntPtr(pointerOffset), typeof(T));
IntPtr ptrOffset = ptr;
for (int i = 0; i < array.Length; i++, ptrOffset = IntPtr.Add(ptrOffset, Marshal.SizeOf(typeof(T))))
array[i] = (T)Marshal.PtrToStructure(ptrOffset, typeof(T));
}
private static int StructureToBytes<T>(T structure, byte[] array, int offset)