text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE127_Buffer_Underread__CWE839_listen_socket_83_bad.cpp
  Label Definition File: CWE127_Buffer_Underread__CWE839.label.xml
  Template File: sources-sinks-83_bad.tmpl.cpp
  */
  /*
   * @description
   * CWE: 127 Buffer Underread
   * BadSource: listen_socket Read data using a listen socket (server side)
   * GoodSource: Non-negative but less than 10
   * Sinks:
   *    GoodSink: Ensure the array index is valid
   *    BadSink : Improperly check the array index by not checking to see if the value is negative
   * Flow Variant: 83 Data flow: data passed to class constructor and destructor by declaring the class object on the stack
   *
   * */
  #ifndef OMITBAD
  
  #include "std_testcase.h"
  #include "CWE127_Buffer_Underread__CWE839_listen_socket_83.h"
  
  #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
  #define CHAR_ARRAY_SIZE (3 * sizeof(data) + 2)
  
  namespace CWE127_Buffer_Underread__CWE839_listen_socket_83
  {
  CWE127_Buffer_Underread__CWE839_listen_socket_83_bad::CWE127_Buffer_Underread__CWE839_listen_socket_83_bad(int dataCopy)
  {
      data = dataCopy;
      {
  #ifdef _WIN32
          WSADATA wsaData;
          int wsaDataInit = 0;
  #endif
          int recvResult;
          struct sockaddr_in service;
          SOCKET listenSocket = INVALID_SOCKET;
          SOCKET acceptSocket = INVALID_SOCKET;
          char inputBuffer[CHAR_ARRAY_SIZE];
          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, inputBuffer, CHAR_ARRAY_SIZE - 1, 0);
              if (recvResult == SOCKET_ERROR || recvResult == 0)
              {
                  break;
              }
              /* NUL-terminate the string */
              inputBuffer[recvResult] = '\0';
              /* Convert to int */
              data = atoi(inputBuffer);
          }
          while (0);
          if (listenSocket != INVALID_SOCKET)
          {
              CLOSE_SOCKET(listenSocket);
          }
          if (acceptSocket != INVALID_SOCKET)
          {
              CLOSE_SOCKET(acceptSocket);
          }
  #ifdef _WIN32
          if (wsaDataInit)
          {
              WSACleanup();
          }
  #endif
      }
  }
  
  CWE127_Buffer_Underread__CWE839_listen_socket_83_bad::~CWE127_Buffer_Underread__CWE839_listen_socket_83_bad()
  {
      {
          int buffer[10] = { 0 };
          /* POTENTIAL FLAW: Attempt to access a negative index of the array
           * This check does not check to see if the array index is negative */
          if (data < 10)
          {
              printIntLine(buffer[data]);
          }
          else
          {
              printLine("ERROR: Array index is too big.");
          }
      }
  }
  }
  #endif /* OMITBAD */
  