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| /*************************************************************************** | |
| * NewTargets.h -- The "NewTargets" class allows NSE scripts to add new * | |
| * targets to the scan queue. * | |
| ***********************IMPORTANT NMAP LICENSE TERMS************************ | |
| * * | |
| * The Nmap Security Scanner is (C) 1996-2021 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.org) 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 [email protected] 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. * | |
| * * | |
| ***************************************************************************/ | |
| /* $Id$ */ | |
| #include "NewTargets.h" | |
| #include "NmapOps.h" | |
| #include "output.h" | |
| #include "nmap_error.h" | |
| extern NmapOps o; /* option structure */ | |
| NewTargets *NewTargets::new_targets; | |
| /* debug level for the adding target is: 3 */ | |
| NewTargets *NewTargets::get (void) { | |
| if (new_targets) | |
| return new_targets; | |
| new_targets = new NewTargets(); | |
| return new_targets; | |
| } | |
| void NewTargets::free_new_targets (void) { | |
| delete new_targets; | |
| } | |
| NewTargets::NewTargets (void) { | |
| Initialize(); | |
| } | |
| void NewTargets::Initialize (void) { | |
| history.clear(); | |
| while (!queue.empty()) | |
| queue.pop(); | |
| } | |
| /* This private method is used to push new targets to the | |
| * queue. It returns the number of targets in the queue. */ | |
| unsigned long NewTargets::push (const char *target) { | |
| std::pair<std::set<std::string>::iterator, bool> pair_iter; | |
| std::string tg(target); | |
| if (tg.length() > 0) { | |
| /* save targets in the scanned history here (NSE side). */ | |
| pair_iter = history.insert(tg); | |
| /* A new target */ | |
| if (pair_iter.second == true) { | |
| /* push target onto the queue for future scans */ | |
| queue.push(tg); | |
| if (o.debugging > 2) | |
| log_write(LOG_PLAIN, "New Targets: target %s pushed onto the queue.\n", tg.c_str()); | |
| } else { | |
| if (o.debugging > 2) | |
| log_write(LOG_PLAIN, "New Targets: target %s is already in the queue.\n", tg.c_str()); | |
| /* Return 1 when the target is already in the history cache, | |
| * this will prevent returning 0 when the target queue is | |
| * empty since no target was added. */ | |
| return 1; | |
| } | |
| } | |
| return queue.size(); | |
| } | |
| /* Reads a target from the queue and return it to be pushed | |
| * onto Nmap scan queue */ | |
| std::string NewTargets::read (void) { | |
| std::string str; | |
| /* check to see it there are targets in the queue */ | |
| if (!new_targets->queue.empty()) { | |
| str = new_targets->queue.front(); | |
| new_targets->queue.pop(); | |
| } | |
| return str; | |
| } | |
| void NewTargets::clear (void) { | |
| new_targets->history.clear(); | |
| } | |
| unsigned long NewTargets::get_number (void) { | |
| return new_targets->history.size(); | |
| } | |
| unsigned long NewTargets::get_scanned (void) { | |
| return new_targets->history.size() - new_targets->queue.size(); | |
| } | |
| unsigned long NewTargets::get_queued (void) { | |
| return new_targets->queue.size(); | |
| } | |
| /* This is the function that is used by nse_nmaplib.cc to add | |
| * new targets. | |
| * Returns the number of targets in the queue on success, or 0 on | |
| * failures or when the queue is empty. */ | |
| unsigned long NewTargets::insert (const char *target) { | |
| if (*target) { | |
| if (new_targets == NULL) { | |
| error("ERROR: to add targets run with -sC or --script options."); | |
| return 0; | |
| } | |
| if (o.current_scantype == SCRIPT_POST_SCAN) { | |
| error("ERROR: adding targets is disabled in the Post-scanning phase."); | |
| return 0; | |
| } | |
| if (strlen(target) >= 1024) { | |
| error("ERROR: new target is too long (>= 1024), failed to add it."); | |
| return 0; | |
| } | |
| } | |
| return new_targets->push(target); | |
| } |