text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE134_Uncontrolled_Format_String__wchar_t_file_vprintf_14.c
  Label Definition File: CWE134_Uncontrolled_Format_String.vasinks.label.xml
  Template File: sources-vasinks-14.tmpl.c
  */
  /*
   * @description
   * CWE: 134 Uncontrolled Format String
   * BadSource: file Read input from a file
   * GoodSource: Copy a fixed string into data
   * Sinks: vprintf
   *    GoodSink: vwprintf with a format string
   *    BadSink : vwprintf without a format string
   * Flow Variant: 14 Control flow: if(globalFive==5) and if(globalFive!=5)
   *
   * */
  
  #include <stdarg.h>
  #include "std_testcase.h"
  
  #ifndef _WIN32
  #include <wchar.h>
  #endif
  
  #ifdef _WIN32
  #define FILENAME "C:\\temp\\file.txt"
  #else
  #define FILENAME "/tmp/file.txt"
  #endif
  
  #ifndef OMITBAD
  
  static void badVaSinkB(wchar_t * data, ...)
  {
      {
          va_list args;
          va_start(args, data);
          /* POTENTIAL FLAW: Do not specify the format allowing a possible format string vulnerability */
          vwprintf(data, args);
          va_end(args);
      }
  }
  
  void CWE134_Uncontrolled_Format_String__wchar_t_file_vprintf_14_bad()
  {
      wchar_t * data;
      wchar_t dataBuffer[100] = L"";
      data = dataBuffer;
      if(globalFive==5)
      {
          {
              /* Read input from a file */
              size_t dataLen = wcslen(data);
              FILE * pFile;
              /* if there is room in data, attempt to read the input from a file */
              if (100-dataLen > 1)
              {
                  pFile = fopen(FILENAME, "r");
                  if (pFile != NULL)
                  {
                      /* POTENTIAL FLAW: Read data from a file */
                      if (fgetws(data+dataLen, (int)(100-dataLen), pFile) == NULL)
                      {
                          printLine("fgetws() failed");
                          /* Restore NUL terminator if fgetws fails */
                          data[dataLen] = L'\0';
                      }
                      fclose(pFile);
                  }
              }
          }
      }
      if(globalFive==5)
      {
          badVaSinkB(data, data);
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  static void goodB2G1VaSinkG(wchar_t * data, ...)
  {
      {
          va_list args;
          va_start(args, data);
          /* FIX: Specify the format disallowing a format string vulnerability */
          vwprintf(L"%s", args);
          va_end(args);
      }
  }
  
  /* goodB2G1() - use badsource and goodsink by changing the second globalFive==5 to globalFive!=5 */
  static void goodB2G1()
  {
      wchar_t * data;
      wchar_t dataBuffer[100] = L"";
      data = dataBuffer;
      if(globalFive==5)
      {
          {
              /* Read input from a file */
              size_t dataLen = wcslen(data);
              FILE * pFile;
              /* if there is room in data, attempt to read the input from a file */
              if (100-dataLen > 1)
              {
                  pFile = fopen(FILENAME, "r");
                  if (pFile != NULL)
                  {
                      /* POTENTIAL FLAW: Read data from a file */
                      if (fgetws(data+dataLen, (int)(100-dataLen), pFile) == NULL)
                      {
                          printLine("fgetws() failed");
                          /* Restore NUL terminator if fgetws fails */
                          data[dataLen] = L'\0';
                      }
                      fclose(pFile);
                  }
              }
          }
      }
      if(globalFive!=5)
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          printLine("Benign, fixed string");
      }
      else
      {
          goodB2G1VaSinkG(data, data);
      }
  }
  
  static void goodB2G2VaSinkG(wchar_t * data, ...)
  {
      {
          va_list args;
          va_start(args, data);
          /* FIX: Specify the format disallowing a format string vulnerability */
          vwprintf(L"%s", args);
          va_end(args);
      }
  }
  
  /* goodB2G2() - use badsource and goodsink by reversing the blocks in the second if */
  static void goodB2G2()
  {
      wchar_t * data;
      wchar_t dataBuffer[100] = L"";
      data = dataBuffer;
      if(globalFive==5)
      {
          {
              /* Read input from a file */
              size_t dataLen = wcslen(data);
              FILE * pFile;
              /* if there is room in data, attempt to read the input from a file */
              if (100-dataLen > 1)
              {
                  pFile = fopen(FILENAME, "r");
                  if (pFile != NULL)
                  {
                      /* POTENTIAL FLAW: Read data from a file */
                      if (fgetws(data+dataLen, (int)(100-dataLen), pFile) == NULL)
                      {
                          printLine("fgetws() failed");
                          /* Restore NUL terminator if fgetws fails */
                          data[dataLen] = L'\0';
                      }
                      fclose(pFile);
                  }
              }
          }
      }
      if(globalFive==5)
      {
          goodB2G2VaSinkG(data, data);
      }
  }
  
  static void goodG2B1VaSinkB(wchar_t * data, ...)
  {
      {
          va_list args;
          va_start(args, data);
          /* POTENTIAL FLAW: Do not specify the format allowing a possible format string vulnerability */
          vwprintf(data, args);
          va_end(args);
      }
  }
  
  /* goodG2B1() - use goodsource and badsink by changing the first globalFive==5 to globalFive!=5 */
  static void goodG2B1()
  {
      wchar_t * data;
      wchar_t dataBuffer[100] = L"";
      data = dataBuffer;
      if(globalFive!=5)
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          printLine("Benign, fixed string");
      }
      else
      {
          /* FIX: Use a fixed string that does not contain a format specifier */
          wcscpy(data, L"fixedstringtest");
      }
      if(globalFive==5)
      {
          goodG2B1VaSinkB(data, data);
      }
  }
  
  static void goodG2B2VaSinkB(wchar_t * data, ...)
  {
      {
          va_list args;
          va_start(args, data);
          /* POTENTIAL FLAW: Do not specify the format allowing a possible format string vulnerability */
          vwprintf(data, args);
          va_end(args);
      }
  }
  
  /* goodG2B2() - use goodsource and badsink by reversing the blocks in the first if */
  static void goodG2B2()
  {
      wchar_t * data;
      wchar_t dataBuffer[100] = L"";
      data = dataBuffer;
      if(globalFive==5)
      {
          /* FIX: Use a fixed string that does not contain a format specifier */
          wcscpy(data, L"fixedstringtest");
      }
      if(globalFive==5)
      {
          goodG2B2VaSinkB(data, data);
      }
  }
  
  void CWE134_Uncontrolled_Format_String__wchar_t_file_vprintf_14_good()
  {
      goodG2B1();
      goodG2B2();
      goodB2G1();
      goodB2G2();
  }
  
  #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()...");
      CWE134_Uncontrolled_Format_String__wchar_t_file_vprintf_14_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE134_Uncontrolled_Format_String__wchar_t_file_vprintf_14_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  