diff -r ea891871f481 -r bb5522e88ab2 misc/libphysfs/lzma/CPP/7zip/UI/Common/ExtractingFilePath.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libphysfs/lzma/CPP/7zip/UI/Common/ExtractingFilePath.cpp	Mon Apr 10 12:06:43 2017 -0400
@@ -0,0 +1,96 @@
+// ExtractingFilePath.cpp
+
+#include "StdAfx.h"
+#include "ExtractingFilePath.h"
+
+static UString ReplaceIncorrectChars(const UString &s)
+{
+  #ifdef _WIN32
+  UString res;
+  for (int i = 0; i < s.Length(); i++)
+  {
+    wchar_t c = s[i];
+    if (c < 0x20 || c == '*' || c == '?' || c == '<' || c == '>'  || c == '|' || c == ':' || c == '"')
+      c = '_';
+    res += c;
+  }
+  return res;
+  #else
+  return s;
+  #endif
+}
+
+#ifdef _WIN32
+static const wchar_t *g_ReservedNames[] =
+{
+  L"CON", L"PRN", L"AUX", L"NUL"
+};
+
+static bool CheckTail(const UString &name, int len)
+{
+  int dotPos = name.Find(L'.');
+  if (dotPos < 0)
+    dotPos = name.Length();
+  UString s = name.Left(dotPos);
+  s.TrimRight();
+  return (s.Length() != len);
+}
+
+static bool CheckNameNum(const UString &name, const wchar_t *reservedName)
+{
+  int len = MyStringLen(reservedName);
+  if (name.Length() <= len)
+    return true;
+  if (name.Left(len).CompareNoCase(reservedName) != 0)
+    return true;
+  wchar_t c = name[len];
+  if (c < L'0' || c > L'9')
+    return true;
+  return CheckTail(name, len + 1);
+}
+
+static bool IsSupportedName(const UString &name)
+{
+  for (int i = 0; i < sizeof(g_ReservedNames) / sizeof(g_ReservedNames[0]); i++)
+  {
+    const wchar_t *reservedName = g_ReservedNames[i];
+    int len = MyStringLen(reservedName);
+    if (name.Length() < len)
+      continue;
+    if (name.Left(len).CompareNoCase(reservedName) != 0)
+      continue;
+    if (!CheckTail(name, len))
+      return false;
+  }
+  if (!CheckNameNum(name, L"COM"))
+    return false;
+  return CheckNameNum(name, L"LPT");
+}
+#endif
+
+static UString GetCorrectFileName(const UString &path)
+{
+  if (path == L".." || path == L".")
+    return UString();
+  return ReplaceIncorrectChars(path);
+}
+
+void MakeCorrectPath(UStringVector &pathParts)
+{
+  for (int i = 0; i < pathParts.Size();)
+  {
+    UString &s = pathParts[i];
+    s = GetCorrectFileName(s);
+    if (s.IsEmpty())
+      pathParts.Delete(i);
+    else
+    {
+      #ifdef _WIN32
+      if (!IsSupportedName(s))
+        s = (UString)L"_" + s;
+      #endif
+      i++;
+    }
+  }
+}
+