// Reads native process info from a 64/32-bit process in the case where the target architecture
// of this process is the same as that of the target process.
private bool LoadProcessInfoNative(SafeProcessHandle handle, ProcessAccessFlags flags) {
ProcessBasicInformation basicInfo = new ProcessBasicInformation();
int size;
int status = NativeMethods.NtQueryInformationProcess(
handle,
ProcessInfoClass.BasicInformation,
ref basicInfo,
MarshalUtility.UnmanagedStructSize<ProcessBasicInformation>(),
out size);
_parentProcessId = basicInfo.ParentProcessId.ToInt32();
// If we can't load the ProcessBasicInfo, then we can't really do anything.
if (status != NtStatus.Success || basicInfo.PebBaseAddress == IntPtr.Zero)
return false;
if (flags.HasFlag(ProcessAccessFlags.VmRead)) {
// Follows a pointer from the PROCESS_BASIC_INFORMATION structure in the target process's
// address space to read the PEB.
Peb peb = MarshalUtility.ReadUnmanagedStructFromProcess<Peb>(
handle,
basicInfo.PebBaseAddress);
_isBeingDebugged = peb.IsBeingDebugged;
if (peb.ProcessParameters != IntPtr.Zero) {
// Follows a pointer from the PEB structure in the target process's address space to read
// the RTL_USER_PROCESS_PARAMS.
RtlUserProcessParameters processParameters = new RtlUserProcessParameters();
processParameters = MarshalUtility.ReadUnmanagedStructFromProcess<RtlUserProcessParameters>(
handle,
peb.ProcessParameters);
_commandLine = MarshalUtility.ReadStringUniFromProcess(
handle,
processParameters.CommandLine.Buffer,
processParameters.CommandLine.Length / 2);
}
}
return true;
}
public static extern int NtQueryInformationProcess(SafeProcessHandle hProcess, ProcessInfoClass pic, ref ProcessBasicInformation pbi, int cb, out int pSize);
public static extern int NtQueryInformationProcess(SafeProcessHandle hProcess, ProcessInfoClass pic, ref ProcessBasicInformation pbi, int cb, out int pSize);
