text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE197_Numeric_Truncation_Error__int_connect_socket_to_char_34.c
  Label Definition File: CWE197_Numeric_Truncation_Error__int.label.xml
  Template File: sources-sink-34.tmpl.c
  */
  /*
   * @description
   * CWE: 197 Numeric Truncation Error
   * BadSource: connect_socket Read data using a connect socket (client side)
   * GoodSource: Less than CHAR_MAX
   * Sinks: to_char
   *    BadSink : Convert data to a char
   * Flow Variant: 34 Data flow: use of a union containing two methods of accessing the same data (within the same function)
   *
   * */
  
  #include "std_testcase.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 /* NOT _WIN32 */
  #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 IP_ADDRESS "127.0.0.1"
  #define CHAR_ARRAY_SIZE (3 * sizeof(data) + 2)
  
  typedef union
  {
      int unionFirst;
      int unionSecond;
  } CWE197_Numeric_Truncation_Error__int_connect_socket_to_char_34_unionType;
  
  #ifndef OMITBAD
  
  void CWE197_Numeric_Truncation_Error__int_connect_socket_to_char_34_bad()
  {
      int data;
      CWE197_Numeric_Truncation_Error__int_connect_socket_to_char_34_unionType myUnion;
      /* Initialize data */
      data = -1;
      {
  #ifdef _WIN32
          WSADATA wsaData;
          int wsaDataInit = 0;
  #endif
          int recvResult;
          struct sockaddr_in service;
          SOCKET connectSocket = 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 connect socket */
              connectSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
              if (connectSocket == INVALID_SOCKET)
              {
                  break;
              }
              memset(&service, 0, sizeof(service));
              service.sin_family = AF_INET;
              service.sin_addr.s_addr = inet_addr(IP_ADDRESS);
              service.sin_port = htons(TCP_PORT);
              if (connect(connectSocket, (struct sockaddr*)&service, sizeof(service)) == SOCKET_ERROR)
              {
                  break;
              }
              /* Abort on error or the connection was closed, make sure to recv one
               * less char than is in the recv_buf in order to append a terminator */
              recvResult = recv(connectSocket, 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 (connectSocket != INVALID_SOCKET)
          {
              CLOSE_SOCKET(connectSocket);
          }
  #ifdef _WIN32
          if (wsaDataInit)
          {
              WSACleanup();
          }
  #endif
      }
      myUnion.unionFirst = data;
      {
          int data = myUnion.unionSecond;
          {
              /* POTENTIAL FLAW: Convert data to a char, possibly causing a truncation error */
              char charData = (char)data;
              printHexCharLine(charData);
          }
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B() uses the GoodSource with the BadSink */
  static void goodG2B()
  {
      int data;
      CWE197_Numeric_Truncation_Error__int_connect_socket_to_char_34_unionType myUnion;
      /* Initialize data */
      data = -1;
      /* FIX: Use a positive integer less than CHAR_MAX*/
      data = CHAR_MAX-5;
      myUnion.unionFirst = data;
      {
          int data = myUnion.unionSecond;
          {
              /* POTENTIAL FLAW: Convert data to a char, possibly causing a truncation error */
              char charData = (char)data;
              printHexCharLine(charData);
          }
      }
  }
  
  void CWE197_Numeric_Truncation_Error__int_connect_socket_to_char_34_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()...");
      CWE197_Numeric_Truncation_Error__int_connect_socket_to_char_34_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE197_Numeric_Truncation_Error__int_connect_socket_to_char_34_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  