KWSys Directory: Check opendir return value before using it (#15367)

In Directory::GetNumberOfFilesInDirectory add a missing check for NULL.
2015-01-23 13:14:01 -05:00 · 2015-01-23 13:14:01 -05:00 · 482c84759f
parent 57622bd19d
commit 482c84759f
1 changed files with 5 additions and 0 deletions
--- a/Source/kwsys/Directory.cxx
+++ b/Source/kwsys/Directory.cxx
@ -239,6 +239,11 @@ unsigned long Directory::GetNumberOfFilesInDirectory(const kwsys_stl::string& na
 {
  DIR* dir = opendir(name.c_str());

+  if (!dir)
+    {
+    return 0;
+    }
+
  unsigned long count = 0;
  for (dirent* d = readdir(dir); d; d = readdir(dir) )
    {