text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE23_Relative_Path_Traversal__char_listen_socket_ifstream_07.cpp
  Label Definition File: CWE23_Relative_Path_Traversal.label.xml
  Template File: sources-sink-07.tmpl.cpp
  */
  /*
   * @description
   * CWE: 23 Relative Path Traversal
   * BadSource: listen_socket Read data using a listen socket (server side)
   * GoodSource: Use a fixed file name
   * Sink: ifstream
   *    BadSink : Open the file named in data using ifstream::open()
   * Flow Variant: 07 Control flow: if(staticFive==5) and if(staticFive!=5)
   *
   * */
  
  #include "std_testcase.h"
  
  #ifdef _WIN32
  #define BASEPATH "c:\\temp\\"
  #else
  #include <wchar.h>
  #define BASEPATH "/tmp/"
  #endif
  
  #ifdef _WIN32
  #include <winsock2.h>
  #include <windows.h>
  #include <direct.h>
  #pragma comment(lib, "ws2_32") /* include ws2_32.lib when linking */
  #define CLOSE_SOCKET closesocket
  #else
  #include <sys/types.h>
  #include <sys/socket.h>
  #include <netinet/in.h>
  #include <arpa/inet.h>
  #include <unistd.h>
  #define INVALID_SOCKET -1
  #define SOCKET_ERROR -1
  #define CLOSE_SOCKET close
  #define SOCKET int
  #endif
  
  #define TCP_PORT 27015
  #define LISTEN_BACKLOG 5
  
  #include <fstream>
  using namespace std;
  
  /* The variable below is not declared "const", but is never assigned
     any other value so a tool should be able to identify that reads of
     this will always give its initialized value. */
  static int staticFive = 5;
  
  namespace CWE23_Relative_Path_Traversal__char_listen_socket_ifstream_07
  {
  
  #ifndef OMITBAD
  
  void bad()
  {
      char * data;
      char dataBuffer[FILENAME_MAX] = BASEPATH;
      data = dataBuffer;
      if(staticFive==5)
      {
          {
  #ifdef _WIN32
              WSADATA wsaData;
              int wsaDataInit = 0;
  #endif
              int recvResult;
              struct sockaddr_in service;
              char *replace;
              SOCKET listenSocket = INVALID_SOCKET;
              SOCKET acceptSocket = INVALID_SOCKET;
              size_t dataLen = strlen(data);
              do
              {
  #ifdef _WIN32
                  if (WSAStartup(MAKEWORD(2,2), &wsaData) != NO_ERROR)
                  {
                      break;
                  }
                  wsaDataInit = 1;
  #endif
                  /* POTENTIAL FLAW: Read data using a listen socket */
                  listenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
                  if (listenSocket == INVALID_SOCKET)
                  {
                      break;
                  }
                  memset(&service, 0, sizeof(service));
                  service.sin_family = AF_INET;
                  service.sin_addr.s_addr = INADDR_ANY;
                  service.sin_port = htons(TCP_PORT);
                  if (bind(listenSocket, (struct sockaddr*)&service, sizeof(service)) == SOCKET_ERROR)
                  {
                      break;
                  }
                  if (listen(listenSocket, LISTEN_BACKLOG) == SOCKET_ERROR)
                  {
                      break;
                  }
                  acceptSocket = accept(listenSocket, NULL, NULL);
                  if (acceptSocket == SOCKET_ERROR)
                  {
                      break;
                  }
                  /* Abort on error or the connection was closed */
                  recvResult = recv(acceptSocket, (char *)(data + dataLen), sizeof(char) * (FILENAME_MAX - dataLen - 1), 0);
                  if (recvResult == SOCKET_ERROR || recvResult == 0)
                  {
                      break;
                  }
                  /* Append null terminator */
                  data[dataLen + recvResult / sizeof(char)] = '\0';
                  /* Eliminate CRLF */
                  replace = strchr(data, '\r');
                  if (replace)
                  {
                      *replace = '\0';
                  }
                  replace = strchr(data, '\n');
                  if (replace)
                  {
                      *replace = '\0';
                  }
              }
              while (0);
              if (listenSocket != INVALID_SOCKET)
              {
                  CLOSE_SOCKET(listenSocket);
              }
              if (acceptSocket != INVALID_SOCKET)
              {
                  CLOSE_SOCKET(acceptSocket);
              }
  #ifdef _WIN32
              if (wsaDataInit)
              {
                  WSACleanup();
              }
  #endif
          }
      }
      {
          ifstream inputFile;
          /* POTENTIAL FLAW: Possibly opening a file without validating the file name or path */
          inputFile.open((char *)data);
          inputFile.close();
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B1() - use goodsource and badsink by changing the staticFive==5 to staticFive!=5 */
  static void goodG2B1()
  {
      char * data;
      char dataBuffer[FILENAME_MAX] = BASEPATH;
      data = dataBuffer;
      if(staticFive!=5)
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          printLine("Benign, fixed string");
      }
      else
      {
          /* FIX: Use a fixed file name */
          strcat(data, "file.txt");
      }
      {
          ifstream inputFile;
          /* POTENTIAL FLAW: Possibly opening a file without validating the file name or path */
          inputFile.open((char *)data);
          inputFile.close();
      }
  }
  
  /* goodG2B2() - use goodsource and badsink by reversing the blocks in the if statement */
  static void goodG2B2()
  {
      char * data;
      char dataBuffer[FILENAME_MAX] = BASEPATH;
      data = dataBuffer;
      if(staticFive==5)
      {
          /* FIX: Use a fixed file name */
          strcat(data, "file.txt");
      }
      {
          ifstream inputFile;
          /* POTENTIAL FLAW: Possibly opening a file without validating the file name or path */
          inputFile.open((char *)data);
          inputFile.close();
      }
  }
  
  void good()
  {
      goodG2B1();
      goodG2B2();
  }
  
  #endif /* OMITGOOD */
  
  } /* close namespace */
  
  /* 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
  
  using namespace CWE23_Relative_Path_Traversal__char_listen_socket_ifstream_07; /* so that we can use good and bad easily */
  
  int main(int argc, char * argv[])
  {
      /* seed randomness */
      srand( (unsigned)time(NULL) );
  #ifndef OMITGOOD
      printLine("Calling good()...");
      good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  