text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE78_OS_Command_Injection__wchar_t_fromConsole_execv_04.c
  Label Definition File: CWE78_OS_Command_Injection.no_path.label.xml
  Template File: sources-sink-04.tmpl.c
  */
  /*
   * @description
   * CWE: 78 OS Command Injection
   * BadSource: fromConsole Read input from the console
   * GoodSource: Benign input
   * Sink: execv
   *    BadSink : execute command with wexecv
   * Flow Variant: 04 Control flow: if(static_const_t) and if(static_const_f)
   *
   * */
  
  #include "std_testcase.h"
  
  #include <wchar.h>
  
  #ifdef _WIN32
  # define COMMAND_INT_PATH L"%WINDIR%\\system32\\cmd.exe"
  # define COMMAND_INT L"cmd.exe"
  # define COMMAND_ARG1 L"/c"
  # define COMMAND_ARG2 L"dir"
  # define COMMAND_ARG3 data
  #else /* NOT _WIN32 */
  # define COMMAND_INT_PATH L"/bin/sh"
  # define COMMAND_INT L"sh"
  # define COMMAND_ARG1 L"ls"
  # define COMMAND_ARG2 data
  # define COMMAND_ARG3 NULL
  #endif
  
  #ifdef _WIN32
  #include <process.h>
  # define EXECV _wexecv
  #else /* NOT _WIN32 */
  # define EXECV wexecv
  #endif
  
  /* The two variables below are declared "const", so a tool should
     be able to identify that reads of these will always return their
     initialized values. */
  static const int static_const_t = 1; /* true */
  static const int static_const_f = 0; /* false */
  
  #ifndef OMITBAD
  
  void CWE78_OS_Command_Injection__wchar_t_fromConsole_execv_04_bad()
  {
      wchar_t * data;
      wchar_t data_buf[100] = L"";
      data = data_buf;
      if(static_const_t)
      {
          {
              /* Read input from the console */
              size_t data_len = wcslen(data);
              /* if there is room in data, read into it from the console */
              if(100-data_len > 1)
              {
                  fgetws(data+data_len, (int)(100-data_len), stdin);
                  /* The next 3 lines remove the carriage return from the string that is
                   * inserted by fgetws() */
                  data_len = wcslen(data);
                  if (data_len > 0)
                  {
                      data[data_len-1] = L'\0';
                  }
              }
          }
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          /* FIX: Benign input preventing command injection */
          wcscat(data, L"*.*");
      }
      {
          wchar_t *args[] = {COMMAND_INT_PATH, COMMAND_ARG1, COMMAND_ARG2, COMMAND_ARG3, NULL};
          /* wexecv - specify the path where the command is located */
          /* POSSIBLE FLAW: Execute command without validating input possibly leading to command injection */
          EXECV(COMMAND_INT_PATH, args);
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B1() - use goodsource and badsink by changing the static_const_t to static_const_f */
  static void goodG2B1()
  {
      wchar_t * data;
      wchar_t data_buf[100] = L"";
      data = data_buf;
      if(static_const_f)
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          {
              /* Read input from the console */
              size_t data_len = wcslen(data);
              /* if there is room in data, read into it from the console */
              if(100-data_len > 1)
              {
                  fgetws(data+data_len, (int)(100-data_len), stdin);
                  /* The next 3 lines remove the carriage return from the string that is
                   * inserted by fgetws() */
                  data_len = wcslen(data);
                  if (data_len > 0)
                  {
                      data[data_len-1] = L'\0';
                  }
              }
          }
      }
      else
      {
          /* FIX: Benign input preventing command injection */
          wcscat(data, L"*.*");
      }
      {
          wchar_t *args[] = {COMMAND_INT_PATH, COMMAND_ARG1, COMMAND_ARG2, COMMAND_ARG3, NULL};
          /* wexecv - specify the path where the command is located */
          /* POSSIBLE FLAW: Execute command without validating input possibly leading to command injection */
          EXECV(COMMAND_INT_PATH, args);
      }
  }
  
  /* goodG2B2() - use goodsource and badsink by reversing the blocks in the if statement */
  static void goodG2B2()
  {
      wchar_t * data;
      wchar_t data_buf[100] = L"";
      data = data_buf;
      if(static_const_t)
      {
          /* FIX: Benign input preventing command injection */
          wcscat(data, L"*.*");
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          {
              /* Read input from the console */
              size_t data_len = wcslen(data);
              /* if there is room in data, read into it from the console */
              if(100-data_len > 1)
              {
                  fgetws(data+data_len, (int)(100-data_len), stdin);
                  /* The next 3 lines remove the carriage return from the string that is
                   * inserted by fgetws() */
                  data_len = wcslen(data);
                  if (data_len > 0)
                  {
                      data[data_len-1] = L'\0';
                  }
              }
          }
      }
      {
          wchar_t *args[] = {COMMAND_INT_PATH, COMMAND_ARG1, COMMAND_ARG2, COMMAND_ARG3, NULL};
          /* wexecv - specify the path where the command is located */
          /* POSSIBLE FLAW: Execute command without validating input possibly leading to command injection */
          EXECV(COMMAND_INT_PATH, args);
      }
  }
  
  void CWE78_OS_Command_Injection__wchar_t_fromConsole_execv_04_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_fromConsole_execv_04_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE78_OS_Command_Injection__wchar_t_fromConsole_execv_04_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  