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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) 1996-2020 Insecure.Com 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 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 */