text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE78_OS_Command_Injection__char_fromFile_system_45.c
  Label Definition File: CWE78_OS_Command_Injection.fullpath.label.xml
  Template File: sources-sink-45.tmpl.c
  */
  /*
   * @description
   * CWE: 78 OS Command Injection
   * BadSource: fromFile Read input from a file
   * GoodSource: Benign input
   * Sinks: system
   *    BadSink : Execute command using system()
   * Flow Variant: 45 Data flow: data passed as a static global variable from one function to another in the same source file
   *
   * */
  
  #include "std_testcase.h"
  
  #include <wchar.h>
  
  #ifdef _WIN32
  # define COMMAND_INT_PATH "%WINDIR%\\system32\\cmd.exe"
  # define COMMAND_INT "cmd.exe"
  # define COMMAND_ARG1 "/c"
  # define COMMAND_ARG2 "dir"
  # define FULL_COMMAND COMMAND_INT_PATH " " COMMAND_ARG1 " "COMMAND_ARG2 " "
  #else /* NOT _WIN32 */
  # define COMMAND_INT_PATH "/bin/sh"
  # define COMMAND_INT "sh"
  # define COMMAND_ARG1 "ls"
  # define FULL_COMMAND COMMAND_INT_PATH " " COMMAND_ARG1 " "
  #endif
  
  #ifdef _WIN32
  # define FOPEN fopen
  #else
  /* fopen is used on unix-based OSs */
  # define FOPEN fopen
  #endif
  
  static char * CWE78_OS_Command_Injection__char_fromFile_system_45_bad_data;
  static char * CWE78_OS_Command_Injection__char_fromFile_system_45_goodG2B_data;
  
  #ifndef OMITBAD
  
  static void bad_sink()
  {
      char * data = CWE78_OS_Command_Injection__char_fromFile_system_45_bad_data;
      /* POSSIBLE FLAW: Execute command without validating input possibly leading to command injection */
      system(data);
  }
  
  void CWE78_OS_Command_Injection__char_fromFile_system_45_bad()
  {
      char * data;
      char data_buf[100] = FULL_COMMAND;
      data = data_buf;
      {
          /* Read input from a file */
          size_t data_len = strlen(data);
          FILE * pFile;
          /* if there is room in data, attempt to read the input from a file */
          if(100-data_len > 1)
          {
              pFile = FOPEN("C:\\temp\\file.txt", "r");
              if (pFile != NULL)
              {
                  fgets(data+data_len, (int)(100-data_len), pFile);
                  fclose(pFile);
              }
          }
      }
      CWE78_OS_Command_Injection__char_fromFile_system_45_bad_data = data;
      bad_sink();
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B() uses the GoodSource with the BadSink */
  static void goodG2B_sink()
  {
      char * data = CWE78_OS_Command_Injection__char_fromFile_system_45_goodG2B_data;
      /* POSSIBLE FLAW: Execute command without validating input possibly leading to command injection */
      system(data);
  }
  
  static void goodG2B()
  {
      char * data;
      char data_buf[100] = FULL_COMMAND;
      data = data_buf;
      /* FIX: Benign input preventing command injection */
      strcat(data, "*.*");
      CWE78_OS_Command_Injection__char_fromFile_system_45_goodG2B_data = data;
      goodG2B_sink();
  }
  
  void CWE78_OS_Command_Injection__char_fromFile_system_45_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()...");
      CWE78_OS_Command_Injection__char_fromFile_system_45_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE78_OS_Command_Injection__char_fromFile_system_45_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  