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| /*************************************************************************** | |
| * utils.h -- Various miscellaneous utility functions which defy * | |
| * categorization :) * | |
| * * | |
| ***********************IMPORTANT NMAP LICENSE TERMS************************ | |
| * * | |
| * The Nmap Security Scanner is (C) 1996-2021 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.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 UTILS_H | |
| #define UTILS_H | |
| #ifndef WIN32 | |
| #include <sys/mman.h> | |
| #endif | |
| #include "nbase.h" | |
| #include <assert.h> | |
| /* Arithmatic difference modulo 2^32 */ | |
| #ifndef MOD_DIFF | |
| #define MOD_DIFF(a,b) ((u32) (MIN((u32)(a) - (u32 ) (b), (u32 )(b) - (u32) (a)))) | |
| #endif | |
| /* Arithmatic difference modulo 2^16 */ | |
| #ifndef MOD_DIFF_USHORT | |
| #define MOD_DIFF_USHORT(a,b) ((MIN((unsigned short)((unsigned short)(a) - (unsigned short ) (b)), (unsigned short) ((unsigned short )(b) - (unsigned short) (a))))) | |
| #endif | |
| #ifndef FALSE | |
| #define FALSE 0 | |
| #endif | |
| #ifndef TRUE | |
| #define TRUE 1 | |
| #endif | |
| #define MAX_PARSE_ARGS 254 /* +1 for integrity checking + 1 for null term */ | |
| /* Return num if it is between min and max. Otherwise return min or max | |
| (whichever is closest to num). */ | |
| template<class T> T box(T bmin, T bmax, T bnum) { | |
| assert(bmin <= bmax); | |
| if (bnum >= bmax) | |
| return bmax; | |
| if (bnum <= bmin) | |
| return bmin; | |
| return bnum; | |
| } | |
| int wildtest(const char *wild, const char *test); | |
| void nmap_hexdump(const unsigned char *cp, unsigned int length); | |
| void genfry(unsigned char *arr, int elem_sz, int num_elem); | |
| void shortfry(unsigned short *arr, int num_elem); | |
| char *chomp(char *string); | |
| int Send(int sd, const void *msg, size_t len, int flags); | |
| int arg_parse(const char *command, char ***argv); | |
| void arg_parse_free(char **argv); | |
| char *cstring_unescape(char *str, unsigned int *len); | |
| void bintohexstr(char *buf, int buflen, const char *src, int srclen); | |
| u8 *parse_hex_string(const char *str, size_t *outlen); | |
| int cpe_get_part(const char *cpe); | |
| char *mmapfile(char *fname, s64 *length, int openflags); | |
| #ifdef WIN32 | |
| int win32_munmap(char *filestr, int filelen); | |
| #endif /* WIN32 */ | |
| #endif /* UTILS_H */ | |