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Diffstat (limited to 'main.cc')
| -rw-r--r-- | main.cc | 170 |
1 files changed, 170 insertions, 0 deletions
@@ -0,0 +1,170 @@ + +/*************************************************************************** + * main.cc -- Contains the main() function of Nmap. Note that main() * + * does very little except for calling nmap_main() (which is in nmap.cc) * + * * + ***********************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/ + * + ***************************************************************************/ + +/* $Id$ */ + +#include <signal.h> +#include <locale.h> + +#include "nmap.h" +#include "NmapOps.h" +#include "utils.h" +#include "nmap_error.h" + +#ifdef MTRACE +#include "mcheck.h" +#endif + +#ifdef __amigaos__ +#include <proto/exec.h> +#include <proto/dos.h> +#include "nmap_amigaos.h" +struct Library *SocketBase = NULL, *MiamiBase = NULL, *MiamiBPFBase = NULL, *MiamiPCapBase = NULL; +static const char ver[] = "$VER:" NMAP_NAME " v"NMAP_VERSION " [Amiga.sf]"; + +static void CloseLibs(void) { + if (MiamiPCapBase ) CloseLibrary( MiamiPCapBase ); + if (MiamiBPFBase ) CloseLibrary( MiamiBPFBase ); + if ( SocketBase ) CloseLibrary( SocketBase ); + if ( MiamiBase ) CloseLibrary( MiamiBase ); +} + +static BOOL OpenLibs(void) { + if(!( MiamiBase = OpenLibrary(MIAMINAME,21))) return FALSE; + if(!( SocketBase = OpenLibrary("bsdsocket.library", 4))) return FALSE; + if(!( MiamiBPFBase = OpenLibrary(MIAMIBPFNAME,3))) return FALSE; + if(!(MiamiPCapBase = OpenLibrary(MIAMIPCAPNAME,5))) return FALSE; + atexit(CloseLibs); + return TRUE; +} +#endif + +/* global options */ +extern NmapOps o; /* option structure */ + +extern void set_program_name(const char *name); + +int main(int argc, char *argv[]) { + /* The "real" main is nmap_main(). This function hijacks control at the + beginning to do the following: + 1) Check the environment variable NMAP_ARGS. + 2) Check if Nmap was called with --resume. + 3) Resume a previous scan or just call nmap_main. + */ + char command[2048]; + int myargc; + char **myargv = NULL; + char *cptr; + int ret; + int i; + + o.locale = strdup(setlocale(LC_CTYPE, NULL)); + set_program_name(argv[0]); + +#ifdef __amigaos__ + if(!OpenLibs()) { + error("Couldn't open TCP/IP Stack Library(s)!"); + exit(20); + } + MiamiBPFInit((struct Library *)MiamiBase, (struct Library *)SocketBase); + MiamiPCapInit((struct Library *)MiamiBase, (struct Library *)SocketBase); +#endif + +#ifdef MTRACE + // This glibc extension enables memory tracing to detect memory + // leaks, frees of unallocated memory, etc. + // See http://www.gnu.org/manual/glibc-2.2.5/html_node/Allocation-Debugging.html#Allocation%20Debugging . + // It only works if the environment variable MALLOC_TRACE is set to a file + // which a memory usage log will be written to. After the program quits + // I can analyze the log via the command 'mtrace [binaryiran] [logfile]' + // MTRACE should only be defined during debug sessions. + mtrace(); +#endif + + if ((cptr = getenv("NMAP_ARGS"))) { + if (Snprintf(command, sizeof(command), "nmap %s", cptr) >= (int) sizeof(command)) { + error("Warning: NMAP_ARGS variable is too long, truncated"); + } + /* copy rest of command-line arguments */ + for (i = 1; i < argc && strlen(command) + strlen(argv[i]) + 1 < sizeof(command); i++) { + strcat(command, " "); + strcat(command, argv[i]); + } + myargc = arg_parse(command, &myargv); + if (myargc < 1) { + fatal("NMAP_ARGS variable could not be parsed"); + } + ret = nmap_main(myargc, myargv); + arg_parse_free(myargv); + return ret; + } + + if (argc == 3 && strcmp("--resume", argv[1]) == 0) { + /* OK, they want to resume an aborted scan given the log file specified. + Lets gather our state from the log file */ + if (gather_logfile_resumption_state(argv[2], &myargc, &myargv) == -1) { + fatal("Cannot resume from (supposed) log file %s", argv[2]); + } + o.resuming = true; + return nmap_main(myargc, myargv); + } + + return nmap_main(argc, argv); +} |