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nmap/ncat/ncat.h

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/***************************************************************************
* ncat.h *
***********************IMPORTANT NMAP LICENSE TERMS************************
* *
* The Nmap Security Scanner is (C) 1996-2012 Insecure.Com LLC. Nmap is *
* 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 *
* GNU General Public License as published by the Free Software *
* Foundation; Version 2 with the clarifications and exceptions described *
* below. This guarantees your right to use, modify, and redistribute *
* this software under certain conditions. If you wish to embed Nmap *
* technology into proprietary software, we sell alternative licenses *
* (contact sales@insecure.com). Dozens of software vendors already *
* license Nmap technology such as host discovery, port scanning, OS *
* detection, version detection, and the Nmap Scripting Engine. *
* *
* Note that the GPL places important restrictions on "derived works", yet *
* it does not provide a detailed definition of that term. To avoid *
* misunderstandings, we interpret that term as broadly as copyright law *
* allows. For example, we consider an application to constitute a *
* "derivative work" for the purpose of this license if it does any of the *
* following: *
* o Integrates source code from Nmap *
* o Reads or includes Nmap copyrighted data files, such as *
* nmap-os-db or nmap-service-probes. *
* o Executes Nmap and parses the results (as opposed to typical shell or *
* execution-menu apps, which simply display raw Nmap output and so are *
* not derivative works.) *
* o Integrates/includes/aggregates Nmap into a proprietary executable *
* installer, such as those produced by InstallShield. *
* o Links to a library or executes a program that does any of the above *
* *
* The term "Nmap" should be taken to also include any portions or derived *
* works of Nmap, as well as other software we distribute under this *
* license such as Zenmap, Ncat, and Nping. This list is not exclusive, *
* but is meant to clarify our interpretation of derived works with some *
* common examples. Our interpretation applies only to Nmap--we don't *
* speak for other people's GPL works. *
* *
* If you have any questions about the GPL licensing restrictions on using *
* Nmap in non-GPL works, we would be happy to help. As mentioned above, *
* we also offer alternative license to integrate Nmap into proprietary *
* applications and appliances. These contracts have been sold to dozens *
* of software vendors, and generally include a perpetual license as well *
* as providing for priority support and updates. They also fund the *
* continued development of Nmap. Please email sales@insecure.com for *
* further information. *
* *
* As a special exception to the GPL terms, Insecure.Com LLC grants *
* permission to link the code of this program with any version of the *
* OpenSSL library which is distributed under a license identical to that *
* listed in the included docs/licenses/OpenSSL.txt file, and distribute *
* linked combinations including the two. You must obey the GNU GPL in all *
* respects for all of the code used other than OpenSSL. If you modify *
* this file, you may extend this exception to your version of the file, *
* but you are not obligated to do so. *
* *
* If you received these files with a written license agreement or *
* contract stating terms other than the terms above, then that *
* alternative license agreement takes precedence over these comments. *
* *
* Source is provided to this software because we believe users have a *
* right to know exactly what a program is going to do before they run it. *
* This also allows you to audit the software for security holes (none *
* have been found so far). *
* *
* Source code also allows you to port Nmap to new platforms, fix bugs, *
* and add new features. You are highly encouraged to send your changes *
* to the dev@nmap.org mailing list for possible incorporation into the *
* main distribution. By sending these changes to Fyodor or one of the *
* Insecure.Org development mailing lists, or checking them into the Nmap *
* source code repository, it is understood (unless you specify otherwise) *
* that you are offering the Nmap Project (Insecure.Com LLC) the *
* unlimited, non-exclusive right to reuse, modify, and relicense the *
* code. Nmap will always be available Open Source, but this is important *
* because the inability to relicense code has caused devastating problems *
* for other Free Software projects (such as KDE and NASM). We also *
* occasionally relicense the code to third parties as discussed above. *
* If you wish to specify special license conditions of your *
* contributions, just say so when you send them. *
* *
* This program is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Nmap *
* license file for more details (it's in a COPYING file included with *
* Nmap, and also available from https://svn.nmap.org/nmap/COPYING *
* *
***************************************************************************/
/* $Id$ */
#ifndef NCAT_H_
#define NCAT_H_
#include "ncat_config.h"
#include <nbase.h>
#ifdef HAVE_OPENSSL
#include <openssl/ssl.h>
#endif
#include "nsock.h"
#include "util.h"
#include "sys_wrap.h"
#include "ncat_connect.h"
#include "ncat_core.h"
#include "ncat_exec.h"
#include "ncat_listen.h"
#include "ncat_proxy.h"
#include "ncat_ssl.h"
/* Ncat information for output, etc. */
#define NCAT_NAME "Ncat"
#define NCAT_URL "http://nmap.org/ncat"
#define NCAT_VERSION "6.26SVN"
#ifndef __GNUC__
#ifndef __attribute__
#define __attribute__(x)
#endif
#endif
/* structs */
#ifdef WIN32
#pragma pack(1)
#endif
struct socks4_data {
char version;
char type;
unsigned short port;
unsigned long address;
char username[256];
} __attribute__((packed));
#ifdef WIN32
#pragma pack()
#endif
/* defines */
/* Client-mode timeout for reads, infinite */
#define DEFAULT_READ_TIMEOUT -1
/* Client-mode timeout for writes, in msecs */
#define DEFAULT_WRITE_TIMEOUT 2000
/* Client-mode timeout for connection establishment, in msecs */
#define DEFAULT_CONNECT_TIMEOUT 10000
/* The default length of Ncat buffers */
#define DEFAULT_BUF_LEN (1024)
#define DEFAULT_TCP_BUF_LEN (1024 * 8)
#define DEFAULT_UDP_BUF_LEN (1024 * 128)
/* Default Ncat port */
#define DEFAULT_NCAT_PORT 31337
/* Default port for SOCKS4 */
#define DEFAULT_SOCKS4_PORT 1080
/* The default port Ncat will connect to when trying to connect to an HTTP
* proxy server. The current setting is the default for squid and probably
* other HTTP proxies. But it may also be 8080, 8888, etc.
*/
#define DEFAULT_PROXY_PORT 3128
/* Listen() backlog */
#define BACKLOG 10
/* The default maximum number of simultaneous connections Ncat will accept to
* a listening port. You may want to increase or decrease this value depending
* on your specific needs.
*/
#define DEFAULT_MAX_CONNS 100
/* SOCKS4 protocol responses */
#define SOCKS4_VERSION 4
#define SOCKS_CONNECT 1
#define SOCKS_BIND 2
#define SOCKS_CONN_ACC 90 /* woot */
#define SOCKS_CONN_REF 91
#define SOCKS_CONN_IDENT 92
#define SOCKS_CONN_IDENTDIFF 93
/* Length of IPv6 address */
#ifndef INET6_ADDRSTRLEN
#define INET6_ADDRSTRLEN 46
#endif
#ifndef IPPROTO_SCTP
#define IPPROTO_SCTP 132
#endif
/* Dummy WNOHANG for Windows */
#ifndef WNOHANG
#define WNOHANG 0
#endif
#endif
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