text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE78_OS_Command_Injection__wchar_t_environment_system_14.c
  Label Definition File: CWE78_OS_Command_Injection.one_string.label.xml
  Template File: sources-sink-14.tmpl.c
  */
  /*
   * @description
   * CWE: 78 OS Command Injection
   * BadSource: environment Read input from an environment variable
   * GoodSource: Fixed string
   * Sink: system
   *    BadSink : Execute command in data using system()
   * Flow Variant: 14 Control flow: if(globalFive==5) and if(globalFive!=5)
   *
   * */
  
  #include "std_testcase.h"
  
  #include <wchar.h>
  
  #ifdef _WIN32
  #define FULL_COMMAND L"dir "
  #else
  #include <unistd.h>
  #define FULL_COMMAND L"ls "
  #endif
  
  #define ENV_VARIABLE L"ADD"
  
  #ifdef _WIN32
  #define GETENV _wgetenv
  #else
  #define GETENV getenv
  #endif
  
  #ifdef _WIN32
  #define SYSTEM _wsystem
  #else /* NOT _WIN32 */
  #define SYSTEM system
  #endif
  
  #ifndef OMITBAD
  
  void CWE78_OS_Command_Injection__wchar_t_environment_system_14_bad()
  {
      wchar_t * data;
      wchar_t data_buf[100] = FULL_COMMAND;
      data = data_buf;
      if(globalFive==5)
      {
          {
              /* 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, 100-dataLen-1);
              }
          }
      }
      /* POTENTIAL FLAW: Execute command in data possibly leading to command injection */
      if (SYSTEM(data) != 0)
      {
          printLine("command execution failed!");
          exit(1);
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B1() - use goodsource and badsink by changing the globalFive==5 to globalFive!=5 */
  static void goodG2B1()
  {
      wchar_t * data;
      wchar_t data_buf[100] = FULL_COMMAND;
      data = data_buf;
      if(globalFive!=5)
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          printLine("Benign, fixed string");
      }
      else
      {
          /* FIX: Append a fixed string to data (not user / external input) */
          wcscat(data, L"*.*");
      }
      /* POTENTIAL FLAW: Execute command in data possibly leading to command injection */
      if (SYSTEM(data) != 0)
      {
          printLine("command execution failed!");
          exit(1);
      }
  }
  
  /* goodG2B2() - use goodsource and badsink by reversing the blocks in the if statement */
  static void goodG2B2()
  {
      wchar_t * data;
      wchar_t data_buf[100] = FULL_COMMAND;
      data = data_buf;
      if(globalFive==5)
      {
          /* FIX: Append a fixed string to data (not user / external input) */
          wcscat(data, L"*.*");
      }
      /* POTENTIAL FLAW: Execute command in data possibly leading to command injection */
      if (SYSTEM(data) != 0)
      {
          printLine("command execution failed!");
          exit(1);
      }
  }
  
  void CWE78_OS_Command_Injection__wchar_t_environment_system_14_good()
  {
      goodG2B1();
      goodG2B2();
  }
  
  #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()...");
      CWE78_OS_Command_Injection__wchar_t_environment_system_14_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE78_OS_Command_Injection__wchar_t_environment_system_14_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  