text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE187_Partial_Comparison__char_fromConsole_str_32.c
  Label Definition File: CWE187_Partial_Comparison.label.xml
  Template File: sources-sinks-32.tmpl.c
  */
  /*
   * @description
   * CWE: 187 Partial Comparison
   * BadSource: fromConsole Read input from the console
   * GoodSource: Provide a matching password
   * Sinks: str
   *    GoodSink: Compare the 2 passwords correctly
   *    BadSink : use strstr() to do password match, which is a partial comparison
   * Flow Variant: 32 Data flow using two pointers to the same value within the same function
   *
   * */
  
  #include "std_testcase.h"
  
  #include <wchar.h>
  
  #define PASSWORD "Password1234"
  /* PASSWORD_SZ must equal the length of PASSWORD */
  #define PASSWORD_SZ strlen(PASSWORD)
  
  #ifndef OMITBAD
  
  void CWE187_Partial_Comparison__char_fromConsole_str_32_bad()
  {
      char * data;
      char * *data_ptr1 = &data;
      char * *data_ptr2 = &data;
      char data_buf[100] = "";
      data = data_buf;
      {
          char * data = *data_ptr1;
          {
              /* Read input from the console */
              size_t data_len = strlen(data);
              /* if there is room in data, read into it from the console */
              if(100-data_len > 1)
              {
                  fgets(data+data_len, (int)(100-data_len), stdin);
                  /* The next 3 lines remove the carriage return from the string that is
                   * inserted by fgets() */
                  data_len = strlen(data);
                  if (data_len > 0)
                  {
                      data[data_len-1] = '\0';
                  }
              }
          }
          *data_ptr1 = data;
      }
      {
          char * data = *data_ptr2;
          /* POTENTIAL FLAW: Partially compare the two passwords */
          if (strstr(PASSWORD, data) != NULL)
              printLine("Access granted");
          else
              printLine("Access denied!");
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B() uses the GoodSource with the BadSink */
  static void goodG2B()
  {
      char * data;
      char * *data_ptr1 = &data;
      char * *data_ptr2 = &data;
      char data_buf[100] = "";
      data = data_buf;
      {
          char * data = *data_ptr1;
          /* FIX: Use the matching string */
          data = PASSWORD;
          *data_ptr1 = data;
      }
      {
          char * data = *data_ptr2;
          /* POTENTIAL FLAW: Partially compare the two passwords */
          if (strstr(PASSWORD, data) != NULL)
              printLine("Access granted");
          else
              printLine("Access denied!");
      }
  }
  
  /* goodB2G() uses the BadSource with the GoodSink */
  static void goodB2G()
  {
      char * data;
      char * *data_ptr1 = &data;
      char * *data_ptr2 = &data;
      char data_buf[100] = "";
      data = data_buf;
      {
          char * data = *data_ptr1;
          {
              /* Read input from the console */
              size_t data_len = strlen(data);
              /* if there is room in data, read into it from the console */
              if(100-data_len > 1)
              {
                  fgets(data+data_len, (int)(100-data_len), stdin);
                  /* The next 3 lines remove the carriage return from the string that is
                   * inserted by fgets() */
                  data_len = strlen(data);
                  if (data_len > 0)
                  {
                      data[data_len-1] = '\0';
                  }
              }
          }
          *data_ptr1 = data;
      }
      {
          char * data = *data_ptr2;
          /* Ideally, we would want to do a check to see if the passwords are of equal length */
          /* FIX: Compare the two passwords completely and correctly */
          if (strcmp(PASSWORD, data) == 0)
              printLine("Access granted");
          else
              printLine("Access denied!");
      }
  }
  
  void CWE187_Partial_Comparison__char_fromConsole_str_32_good()
  {
      goodG2B();
      goodB2G();
  }
  
  #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()...");
      CWE187_Partial_Comparison__char_fromConsole_str_32_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE187_Partial_Comparison__char_fromConsole_str_32_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  