mirror of
https://github.com/nmap/nmap.git
synced 2025-12-06 04:31:29 +00:00
84 lines
4.4 KiB
C
84 lines
4.4 KiB
C
/***************************************************************************
|
|
* string_pool.h -- String interning for memory optimization *
|
|
***********************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/
|
|
*
|
|
***************************************************************************/
|
|
#ifndef STRING_POOL_H
|
|
#define STRING_POOL_H
|
|
|
|
/* The OS database consists of many small strings, many of which appear
|
|
thousands of times. It pays to allocate memory only once for each unique
|
|
string, and have all references point at the one allocated value. */
|
|
|
|
/* Store a string uniquely. The first time this function is called with a
|
|
certain string, it allocates memory and stores a copy of the string in a
|
|
static pool. Thereafter it will return a pointer to the saved string instead
|
|
of allocating memory for an identical one. */
|
|
const char *string_pool_insert(const char *s);
|
|
|
|
/* Format a string with sprintf and insert it with string_pool_insert. */
|
|
const char *string_pool_sprintf(const char *fmt, ...);
|
|
|
|
/* Store the string in the interval [s,t) */
|
|
const char *string_pool_substr(const char *s, const char *t);
|
|
|
|
/* Store the string in the interval [s,t), stripping whitespace from both ends. */
|
|
const char *string_pool_substr_strip(const char *s, const char *t);
|
|
|
|
/* Skip over whitespace to find the beginning of a word, then read until the
|
|
next whitespace character. Returns NULL if only whitespace is found. */
|
|
const char *string_pool_strip_word(const char *s, const char *end);
|
|
|
|
#endif // STRING_POOL_H
|