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+/***************************************************************************
+ * RawData.cc -- The RawData Class represents a network packet payload. It *
+ * is essentially a single buffer that may contain either random data or *
+ * caller supplied data. This class can be used, for example, to be linked *
+ * to a UDP datagram. *
+ * *
+ ***********************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/
+ *
+ ***************************************************************************/
+/* This code was originally part of the Nping tool. */
+
+#include "RawData.h"
+
+/******************************************************************************/
+/* CONTRUCTORS, DESTRUCTORS AND INITIALIZATION METHODS */
+/******************************************************************************/
+RawData::RawData(){
+ this->reset();
+} /* End of RawData contructor */
+
+
+RawData::~RawData(){
+ if(this->data!=NULL){
+ free(this->data);
+ this->data=NULL;
+ }
+} /* End of RawData destructor */
+
+
+/** Sets every attribute to its default value */
+void RawData::reset(){
+ this->data=NULL;
+ this->length=0;
+} /* End of reset() */
+
+
+/******************************************************************************/
+/* PacketElement:: OVERWRITTEN METHODS */
+/******************************************************************************/
+
+u8 * RawData::getBufferPointer(){
+ return this->getBufferPointer(NULL);
+} /* End of getBufferPointer() */
+
+
+u8 * RawData::getBufferPointer(int *mylen){
+ if(mylen!=NULL)
+ *mylen=this->length;
+ return this->data;
+} /* End of getBufferPointer() */
+
+
+/** Added for consistency with the rest of classes of the PacketElement family. */
+int RawData::storeRecvData(const u8 *buf, size_t len){
+ return this->store(buf, len);
+} /* End of storeRecvData() */
+
+
+/* Returns a protocol identifier. This is used by packet parsing funtions
+ * that return linked lists of PacketElement objects, to determine the protocol
+ * the object represents. */
+int RawData::protocol_id() const {
+ return HEADER_TYPE_RAW_DATA;
+} /* End of protocol_id() */
+
+
+/** Determines if the data stored in the object after an storeRecvData() call
+ * is valid and safe to use. This mainly checks the length of the data but may
+ * also test the value of certain protocol fields to ensure their correctness.
+ * @return the length, in bytes, of the header, if its found to be valid or
+ * OP_FAILURE (-1) otherwise. */
+int RawData::validate(){
+ return this->length;
+} /* End of validate() */
+
+
+/** Prints the contents of the header and calls print() on the next protocol
+ * header in the chain (if there is any).
+ * @return OP_SUCCESS on success and OP_FAILURE in case of error. */
+int RawData::print(FILE *output, int detail) const {
+ fprintf(output, "Payload[");
+ fprintf(output, "%d byte%s]", this->length, (this->length!=1)? "s":"");
+ if(this->next!=NULL){
+ print_separator(output, detail);
+ next->print(output, detail);
+ }
+ return OP_SUCCESS;
+} /* End of print() */
+
+
+/******************************************************************************/
+/* PROTOCOL-SPECIFIC METHODS */
+/******************************************************************************/
+
+int RawData::store(const u8 *buf, size_t len){
+ /* If buffer had already been set, try to reuse it. */
+ if(this->data!=NULL){
+ if( this->length >= (int)len ){
+ memcpy(this->data, buf, len);
+ this->length=(int)len;
+ return OP_SUCCESS;
+ }else{
+ free(this->data);
+ }
+ }
+ if( (this->data=(u8 *)calloc(len, sizeof(u8)))==NULL )
+ return OP_FAILURE;
+ memcpy(this->data, buf, len);
+ this->length=(int)len;
+ return OP_SUCCESS;
+} /* End of store() */
+
+
+int RawData::store(const char *str){
+ if(str==NULL)
+ return OP_FAILURE;
+ else
+ return this->store((const u8*)str, strlen(str));
+} /* End of store() */
+
+