text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE23_Relative_Path_Traversal__wchar_t_environment_open_01.cpp
  Label Definition File: CWE23_Relative_Path_Traversal.label.xml
  Template File: sources-sink-01.tmpl.cpp
  */
  /*
   * @description
   * CWE: 23 Relative Path Traversal
   * BadSource: environment Read input from an environment variable
   * GoodSource: Use a fixed file name
   * Sink: open
   *    BadSink : Open the file named in data using open()
   * Flow Variant: 01 Baseline
   *
   * */
  
  #include "std_testcase.h"
  
  #ifdef _WIN32
  #define BASEPATH L"c:\\temp\\"
  #else
  #include <wchar.h>
  #define BASEPATH L"/tmp/"
  #endif
  
  #define ENV_VARIABLE L"ADD"
  
  #ifdef _WIN32
  #define GETENV _wgetenv
  #else
  #define GETENV getenv
  #endif
  
  #ifdef _WIN32
  #define OPEN _wopen
  #define CLOSE _close
  #else
  #include <unistd.h>
  #define OPEN open
  #define CLOSE close
  #endif
  
  namespace CWE23_Relative_Path_Traversal__wchar_t_environment_open_01
  {
  
  #ifndef OMITBAD
  
  void bad()
  {
      wchar_t * data;
      wchar_t dataBuffer[FILENAME_MAX] = BASEPATH;
      data = dataBuffer;
      {
          /* Append input from an environment variable to data */
          size_t dataLen = wcslen(data);
          wchar_t * environment = GETENV(ENV_VARIABLE);
          /* If there is data in the environment variable */
          if (environment != NULL)
          {
              /* POTENTIAL FLAW: Read data from an environment variable */
              wcsncat(data+dataLen, environment, FILENAME_MAX-dataLen-1);
          }
      }
      {
          int fileDesc;
          /* POTENTIAL FLAW: Possibly opening a file without validating the file name or path */
          fileDesc = OPEN(data, O_RDWR|O_CREAT, S_IREAD|S_IWRITE);
          if (fileDesc != -1)
          {
              CLOSE(fileDesc);
          }
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B uses the GoodSource with the BadSink */
  static void goodG2B()
  {
      wchar_t * data;
      wchar_t dataBuffer[FILENAME_MAX] = BASEPATH;
      data = dataBuffer;
      /* FIX: Use a fixed file name */
      wcscat(data, L"file.txt");
      {
          int fileDesc;
          /* POTENTIAL FLAW: Possibly opening a file without validating the file name or path */
          fileDesc = OPEN(data, O_RDWR|O_CREAT, S_IREAD|S_IWRITE);
          if (fileDesc != -1)
          {
              CLOSE(fileDesc);
          }
      }
  }
  
  void good()
  {
      goodG2B();
  }
  
  #endif /* OMITGOOD */
  
  } /* close namespace */
  
  /* Below is the main(). It is only used when building this testcase on
     its own for testing or for building a binary to use in testing binary
     analysis tools. It is not used when compiling all the testcases as one
     application, which is how source code analysis tools are tested. */
  
  #ifdef INCLUDEMAIN
  
  using namespace CWE23_Relative_Path_Traversal__wchar_t_environment_open_01; /* so that we can use good and bad easily */
  
  int main(int argc, char * argv[])
  {
      /* seed randomness */
      srand( (unsigned)time(NULL) );
  #ifndef OMITGOOD
      printLine("Calling good()...");
      good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  