text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE369_Divide_by_Zero__int_listen_socket_modulo_64a.c
  Label Definition File: CWE369_Divide_by_Zero__int.label.xml
  Template File: sources-sinks-64a.tmpl.c
  */
  /*
   * @description
   * CWE: 369 Divide by Zero
   * BadSource: listen_socket Read data using a listen socket (server side)
   * GoodSource: Non-zero
   * Sinks: modulo
   *    GoodSink: Check for zero before modulo
   *    BadSink : Modulo a constant with data
   * Flow Variant: 64 Data flow: void pointer to data passed from one function to another in different source files
   *
   * */
  
  #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
  #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)
  
  #ifndef OMITBAD
  
  /* bad function declaration */
  void CWE369_Divide_by_Zero__int_listen_socket_modulo_64b_badSink(void * dataVoidPtr);
  
  void CWE369_Divide_by_Zero__int_listen_socket_modulo_64_bad()
  {
      int data;
      /* Initialize data */
      data = -1;
      {
  #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
      }
      CWE369_Divide_by_Zero__int_listen_socket_modulo_64b_badSink(&data);
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B uses the GoodSource with the BadSink */
  void CWE369_Divide_by_Zero__int_listen_socket_modulo_64b_goodG2BSink(void * dataVoidPtr);
  
  static void goodG2B()
  {
      int data;
      /* Initialize data */
      data = -1;
      /* FIX: Use a value not equal to zero */
      data = 7;
      CWE369_Divide_by_Zero__int_listen_socket_modulo_64b_goodG2BSink(&data);
  }
  
  /* goodB2G uses the BadSource with the GoodSink */
  void CWE369_Divide_by_Zero__int_listen_socket_modulo_64b_goodB2GSink(void * dataVoidPtr);
  
  static void goodB2G()
  {
      int data;
      /* Initialize data */
      data = -1;
      {
  #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
      }
      CWE369_Divide_by_Zero__int_listen_socket_modulo_64b_goodB2GSink(&data);
  }
  
  void CWE369_Divide_by_Zero__int_listen_socket_modulo_64_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()...");
      CWE369_Divide_by_Zero__int_listen_socket_modulo_64_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE369_Divide_by_Zero__int_listen_socket_modulo_64_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  