text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE426_Untrusted_Search_Path__wchar_t_popen_44.c
  Label Definition File: CWE426_Untrusted_Search_Path.label.xml
  Template File: sources-sink-44.tmpl.c
  */
  /*
   * @description
   * CWE: 426 Untrusted Search Path
   * BadSource:  Don't specify the full path in the OS command
   * GoodSource: Specify the full path in the OS command
   * Sinks: popen
   *    BadSink : Execute the wpopen function
   * Flow Variant: 44 Data/control flow: data passed as an argument from one function to a function in the same source file called via a function pointer
   *
   * */
  
  #include "std_testcase.h"
  
  #include <wchar.h>
  
  #ifdef _WIN32
  # define BAD_OS_COMMAND L"cmd.exe /c dir"
  
  /* REVIEWERS NOTE:
   * This hard-coded path is probably incorrect for Windows systems, as it will
   * function improperly on 9x/NT/2K, possibly on XP+ systems upgraded from 2K,
   * and could introduce code execution vulnerabilities on Windows systems that
   * have a system drive on an alternate drive letter (e.g., d:\windows)
   */
  # define GOOD_OS_COMMAND L"c:\\windows\\system32\\cmd.exe /c dir"
  #else /* NOT _WIN32 */
  # define BAD_OS_COMMAND L"ls -la"
  # define GOOD_OS_COMMAND L"/usr/bin/ls -la"
  #endif /* end NOT _WIN32 */
  
  /* define POPEN as _wpopen on Windows and wpopen otherwise */
  #ifdef _WIN32
  # define POPEN _wpopen
  # define PCLOSE _pclose
  #else /* NOT _WIN32 */
  # define POPEN wpopen
  # define PCLOSE pclose
  #endif
  
  #ifndef OMITBAD
  
  static void bad_sink(wchar_t * data)
  {
      {
          FILE *pipe;
          /* POTENTIAL FLAW: Executing the wpopen() function without specifying the full path to the executable
           * can allow an attacker to run their own program */
          pipe = POPEN(data, L"wb");
          if (pipe != NULL) PCLOSE(pipe);
      }
  }
  
  void CWE426_Untrusted_Search_Path__wchar_t_popen_44_bad()
  {
      wchar_t * data;
      /* define a function pointer */
      void (*func_ptr) (wchar_t *) = bad_sink;
      wchar_t data_buf[100] = L"";
      data = data_buf;
      /* FLAW - the full path is not specified */
      wcscpy(data, BAD_OS_COMMAND);
      /* use the function pointer */
      func_ptr(data);
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B() uses the GoodSource with the BadSink */
  static void goodG2B_sink(wchar_t * data)
  {
      {
          FILE *pipe;
          /* POTENTIAL FLAW: Executing the wpopen() function without specifying the full path to the executable
           * can allow an attacker to run their own program */
          pipe = POPEN(data, L"wb");
          if (pipe != NULL) PCLOSE(pipe);
      }
  }
  
  static void goodG2B()
  {
      wchar_t * data;
      void (*func_ptr) (wchar_t *) = goodG2B_sink;
      wchar_t data_buf[100] = L"";
      data = data_buf;
      /* FIX - full path is specified */
      wcscpy(data, GOOD_OS_COMMAND);
      func_ptr(data);
  }
  
  void CWE426_Untrusted_Search_Path__wchar_t_popen_44_good()
  {
      goodG2B();
  }
  
  #endif /* OMITGOOD */
  
  /* 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
  
  int main(int argc, char * argv[])
  {
      /* seed randomness */
      srand( (unsigned)time(NULL) );
  #ifndef OMITGOOD
      printLine("Calling good()...");
      CWE426_Untrusted_Search_Path__wchar_t_popen_44_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE426_Untrusted_Search_Path__wchar_t_popen_44_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  