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/***************************************************************************
* targets.h -- Functions relating to "ping scanning" as well as *
* determining the exact IPs to hit based on CIDR and other input formats. *
* *
***********************IMPORTANT NMAP LICENSE TERMS************************
*
* The Nmap Security Scanner is (C) 1996-2023 Nmap Software LLC ("The Nmap
* Project"). Nmap is also a registered trademark of the Nmap Project.
*
* This program is distributed under the terms of the Nmap Public Source
* License (NPSL). The exact license text applying to a particular Nmap
* release or source code control revision is contained in the LICENSE
* file distributed with that version of Nmap or source code control
* revision. More Nmap copyright/legal information is available from
* https://nmap.org/book/man-legal.html, and further information on the
* NPSL license itself can be found at https://nmap.org/npsl/ . This
* header summarizes some key points from the Nmap license, but is no
* substitute for the actual license text.
*
* Nmap is generally free for end users to download and use themselves,
* including commercial use. It is available from https://nmap.org.
*
* The Nmap license generally prohibits companies from using and
* redistributing Nmap in commercial products, but we sell a special Nmap
* OEM Edition with a more permissive license and special features for
* this purpose. See https://nmap.org/oem/
*
* If you have received a written Nmap license agreement or contract
* stating terms other than these (such as an Nmap OEM license), you may
* choose to use and redistribute Nmap under those terms instead.
*
* The official Nmap Windows builds include the Npcap software
* (https://npcap.com) for packet capture and transmission. It is under
* separate license terms which forbid redistribution without special
* permission. So the official Nmap Windows builds may not be redistributed
* without special permission (such as an Nmap OEM license).
*
* 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.
*
* Source code also allows you to port Nmap to new platforms, fix bugs, and add
* new features. You are highly encouraged to submit your changes as a Github PR
* or by email to the dev@nmap.org mailing list for possible incorporation into
* the main distribution. Unless you specify otherwise, it is understood that
* you are offering us very broad rights to use your submissions as described in
* the Nmap Public Source License Contributor Agreement. This is important
* because we fund the project by selling licenses with various terms, and also
* because the inability to relicense code has caused devastating problems for
* other Free Software projects (such as KDE and NASM).
*
* The free version of Nmap 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. Warranties,
* indemnification and commercial support are all available through the
* Npcap OEM program--see https://nmap.org/oem/
*
***************************************************************************/
/* $Id$ */
#ifndef TARGETS_H
#define TARGETS_H
#include "TargetGroup.h"
#include <list>
#include <nbase.h>
class Target;
class HostGroupState {
public:
/* The maximum number of entries we want to allow storing in defer_buffer. */
static const unsigned int DEFER_LIMIT = 64;
HostGroupState(int lookahead, int randomize, int argc, const char *argv[]);
~HostGroupState();
Target **hostbatch;
/* The defer_buffer is a place to store targets that have previously been
returned but that can't be used right now. They wait in defer_buffer until
HostGroupState::undefer is called, at which point they all move to the end
of the undeferred list. HostGroupState::next_target always pulls from the
undeferred list before returning anything new. */
std::list<Target *> defer_buffer;
std::list<Target *> undeferred;
int argc;
const char **argv;
int max_batch_sz; /* The size of the hostbatch[] array */
int current_batch_sz; /* The number of VALID members of hostbatch[] */
int next_batch_no; /* The index of the next hostbatch[] member to be given
back to the user */
int randomize; /* Whether each batch should be "shuffled" prior to the ping
scan (they will also be out of order when given back one
at a time to the client program */
TargetGroup current_group; /* For batch chunking -- targets in queue */
/* Returns true iff the defer buffer is not yet full. */
bool defer(Target *t);
void undefer();
const char *next_expression();
Target *next_target();
};
/* ports is used to pass information about what ports to use for host discovery */
Target *nexthost(HostGroupState *hs, struct addrset *exclude_group,
const struct scan_lists *ports, int pingtype);
int load_exclude_file(struct addrset *exclude_group, FILE *fp);
int load_exclude_string(struct addrset *exclude_group, const char *s);
/* a debugging routine to dump an exclude list to stdout. */
int dumpExclude(const struct addrset *exclude_group);
/* Returns the last host obtained by nexthost. It will be given again the next
time you call nexthost(). */
void returnhost(HostGroupState *hs);
bool target_needs_new_hostgroup(Target **targets, int targets_sz, const Target *target);
#endif /* TARGETS_H */
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