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 * winfix.cc -- A few trivial windows-compatabilty-related functions that  *
 * are specific to Nmap.  Most of this has been moved into nbase so it can *
 * be shared.                                                              *
 *                                                                         *
 ***********************IMPORTANT NMAP LICENSE TERMS************************
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 * also a registered trademark of Insecure.Com LLC.  This program is free  *
 * software; you may redistribute and/or modify it under the terms of the  *
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 *                                                                         *

/* $Id: */

#include <winclude.h>
#include <sys/timeb.h>

#include "..\nmap.h"
#include "..\tcpip.h"
#include "winfix.h"
#include "..\NmapOps.h"
#include "..\nmap_error.h"

#ifdef _MSC_VER
# include <delayimp.h>

#ifdef _MSC_VER

extern NmapOps o;

int pcap_avail = 0;

/*   internal functions   */
static void win_cleanup(void);
static char pcaplist[4096];

/* The code that has no preconditions to being called, so it can be
   executed before even Nmap options parsing (so o.debugging and the
   like don't need to be used.  Its main function is to do
   WSAStartup() as some of the option parsing code does DNS
   resolution */
void win_pre_init() {
      WORD werd;
      WSADATA data;

      werd = MAKEWORD( 2, 2 );
      if( (WSAStartup(werd, &data)) !=0 )
            fatal("failed to start winsock.\n");

/* Requires that win_pre_init() has already been called, also that
   options processing has been done so that o.debugging is
   available */
void win_init()
      //   variables
      DWORD cb = 0;
      DWORD nRes;
      int i;
      int numipsleft;

      ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
            ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
                  fatal("GetVersionEx failed\n");

            ver.wServicePackMajor = 0;
            ver.wServicePackMinor = 0;

      //   Try to initialize winpcap
#ifdef _MSC_VER
            ULONG len = sizeof(pcaplist);

            pcap_avail = 1;
            if(o.debugging > 2) printf("***WinIP***  trying to initialize winpcap 3.1\n");
            PacketGetAdapterNames(pcaplist, &len);

#ifdef _MSC_VER
                  error("WARNING: your winpcap is too old to use.  Nmap may not function.\n");
                  pcap_avail = 0;
                  printf("Winpcap present, dynamic linked to: %s\n", pcap_lib_version());
#ifdef _MSC_VER
      __except (1) {
                  error("WARNING: Could not import all necessary WinPcap functions.  You may need to upgrade to version 3.1 or higher from http://www.winpcap.org.  Resorting to connect() mode -- Nmap may not function completely");

      o.isr00t = pcap_avail;

static void win_cleanup(void)

int my_close(int sd)
      return closesocket(sd);

int fork()
      fatal("no fork for you!\n");
      return 0;

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