misc/libphysfs/lzma/CPP/7zip/UI/Common/SetProperties.cpp
author nemo
Mon, 10 Apr 2017 12:06:43 -0400
changeset 12213 bb5522e88ab2
permissions -rw-r--r--
bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash

// SetProperties.cpp

#include "StdAfx.h"

#include "SetProperties.h"

#include "Windows/PropVariant.h"
#include "Common/MyString.h"
#include "Common/StringToInt.h"
#include "Common/MyCom.h"

#include "../../Archive/IArchive.h"

using namespace NWindows;
using namespace NCOM;

static void ParseNumberString(const UString &s, NCOM::CPropVariant &prop)
{
  const wchar_t *endPtr;
  UInt64 result = ConvertStringToUInt64(s, &endPtr);
  if (endPtr - (const wchar_t *)s != s.Length())
    prop = s;
  else if (result <= 0xFFFFFFFF)
    prop = (UInt32)result;
  else 
    prop = result;
}

HRESULT SetProperties(IUnknown *unknown, const CObjectVector<CProperty> &properties)
{
  if (properties.IsEmpty())
    return S_OK;
  CMyComPtr<ISetProperties> setProperties;
  unknown->QueryInterface(IID_ISetProperties, (void **)&setProperties);
  if (!setProperties)
    return S_OK;

  UStringVector realNames;
  CPropVariant *values = new CPropVariant[properties.Size()];
  try
  {
    int i;
    for(i = 0; i < properties.Size(); i++)
    {
      const CProperty &property = properties[i];
      NCOM::CPropVariant propVariant;
      if (!property.Value.IsEmpty())
        ParseNumberString(property.Value, propVariant);
      realNames.Add(property.Name);
      values[i] = propVariant;
    }
    CRecordVector<const wchar_t *> names;
    for(i = 0; i < realNames.Size(); i++)
      names.Add((const wchar_t *)realNames[i]);
    
    RINOK(setProperties->SetProperties(&names.Front(), values, names.Size()));
  }
  catch(...)
  {
    delete []values;
    throw;
  }
  delete []values;
  return S_OK;
}