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+
+/***************************************************************************
+ * TargetGroup.h -- The "TargetGroup" class holds a group of IP addresses, *
+ * such as those from a '/16' or '10.*.*.*' specification.  It also has a  *
+ * trivial HostGroupState class which handles a bunch of expressions that  *
+ * go into TargetGroup classes.                                            *
+ *                                                                         *
+ ***********************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 TARGETGROUP_H
+#define TARGETGROUP_H
+
+#include <list>
+#include <cstddef>
+
+class NetBlock;
+
+class TargetGroup {
+public:
+  NetBlock *netblock;
+
+  TargetGroup() {
+    this->netblock = NULL;
+  }
+
+  ~TargetGroup();
+
+  /* Initializes (or reinitializes) the object with a new expression,
+     such as 192.168.0.0/16 , 10.1.0-5.1-254 , or
+     fe80::202:e3ff:fe14:1102 .  The af parameter is AF_INET or
+     AF_INET6 Returns 0 for success */
+  int parse_expr(const char *target_expr, int af);
+  /* Grab the next host from this expression (if any).  Returns 0 and
+     fills in ss if successful.  ss must point to a pre-allocated
+     sockaddr_storage structure */
+  int get_next_host(struct sockaddr_storage *ss, std::size_t *sslen);
+  /* Returns true iff the given address is the one that was resolved to create
+     this target group; i.e., not one of the addresses derived from it with a
+     netmask. */
+  bool is_resolved_address(const struct sockaddr_storage *ss) const;
+  /* Return a string of the name or address that was resolved for this group. */
+  const char *get_resolved_name(void) const;
+  /* Return the list of addresses that the name for this group resolved to, but
+     which were not scanned, if it came from a name resolution. */
+  const std::list<struct sockaddr_storage> &get_unscanned_addrs(void) const;
+  /* is the current expression a named host */
+  int get_namedhost() const;
+};
+
+#endif /* TARGETGROUP_H */
+