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NmapOutputTable.h
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NmapOutputTable.h
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/***************************************************************************
* NmapOutputTable.h -- A relatively simple class for organizing Nmap *
* output into an orderly table for display to the user. *
* *
***********************IMPORTANT NMAP LICENSE TERMS************************
*
* The Nmap Security Scanner is (C) 1996-2024 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 NMAPOUTPUTTABLE_H
#define NMAPOUTPUTTABLE_H
/* Keep assert() defined for security reasons */
#undef NDEBUG
#include <assert.h>
#include "nbase.h" /* __attribute__ */
/********************** DEFINES/ENUMS ***********************************/
/********************** STRUCTURES ***********************************/
/********************** CLASSES ***********************************/
struct NmapOutputTableCell {
char *str;
int strlength;
bool weAllocated; // If we allocated str, we must free it.
bool fullrow;
};
class NmapOutputTable {
public:
// Create a table of the given dimensions. Any completely
// blank rows will be removed when printableTable() is called.
// If the number of table rows is unknown then the highest
// number of possible rows should be specified.
NmapOutputTable(int nrows, int ncols);
~NmapOutputTable();
// Copy specifies whether we must make a copy of item. Otherwise we'll just save the
// ptr (and you better not free it until this table is destroyed ). Skip the itemlen parameter if you
// don't know (and the function will use strlen).
void addItem(unsigned int row, unsigned int column, bool copy, const char *item, int itemlen = -1);
// Same as above but if fullrow is true, 'item' spans across all columns. The spanning starts from
// the column argument (ie. 0 will be the first column)
void addItem(unsigned int row, unsigned int column, bool fullrow, bool copy, const char *item, int itemlen = -1);
// Like addItem except this version takes a printf-style format string followed by varargs
void addItemFormatted(unsigned int row, unsigned int column, bool fullrow, const char *fmt, ...)
__attribute__ ((format (printf, 5, 6))); // Offset by 1 to account for implicit "this" parameter.
// This function sticks the entire table into a character buffer.
// Note that the buffer is likely to be reused if you call the
// function again, and it will also be invalidated if you free the
// table. If size is not NULL, it will be filled with the size of
// the ASCII table in bytes (not including the terminating NUL)
// All blank rows will be removed from the returned string
char *printableTable(int *size);
private:
bool emptyRow(unsigned int nrow);
// The table, squished into 1D. Access a member via getCellAddy
struct NmapOutputTableCell *table;
struct NmapOutputTableCell *getCellAddy(unsigned int row, unsigned int col) {
assert(row < numRows); assert(col < numColumns);
return table + row * numColumns + col;
}
int *maxColLen; // An array that gives the maximum length of any member of each column
// (excluding terminator)
// Array that tells the number of valid (> 0 length) items in each row
int *itemsInRow;
unsigned int numRows;
unsigned int numColumns;
char *tableout; // If printableTable() is called, we return this
int tableoutsz; // Amount of space ALLOCATED for tableout. Includes space allocated for NUL.
};
/********************** PROTOTYPES ***********************************/
#endif /* NMAPOUTPUTTABLE_H */