forked from nmap/nmap
/
main.cc
238 lines (221 loc) · 13 KB
/
main.cc
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/***************************************************************************
* 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) 1996-2017 Insecure.Com LLC ("The Nmap *
* Project"). Nmap is also a registered trademark of the Nmap Project. *
* This program is free software; you may redistribute and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; Version 2 ("GPL"), BUT ONLY WITH ALL OF THE *
* CLARIFICATIONS AND EXCEPTIONS DESCRIBED HEREIN. This guarantees your *
* right to use, modify, and redistribute this software under certain *
* conditions. If you wish to embed Nmap technology into proprietary *
* software, we sell alternative licenses (contact sales@nmap.com). *
* Dozens of software vendors already license Nmap technology such as *
* host discovery, port scanning, OS detection, version detection, and *
* the Nmap Scripting Engine. *
* *
* Note that the GPL places important restrictions on "derivative works", *
* yet it does not provide a detailed definition of that term. To avoid *
* misunderstandings, we interpret that term as broadly as copyright law *
* allows. For example, we consider an application to constitute a *
* derivative work for the purpose of this license if it does any of the *
* following with any software or content covered by this license *
* ("Covered Software"): *
* *
* o Integrates source code from Covered Software. *
* *
* o Reads or includes copyrighted data files, such as Nmap's nmap-os-db *
* or nmap-service-probes. *
* *
* o Is designed specifically to execute Covered Software and parse the *
* results (as opposed to typical shell or execution-menu apps, which will *
* execute anything you tell them to). *
* *
* o Includes Covered Software in a proprietary executable installer. The *
* installers produced by InstallShield are an example of this. Including *
* Nmap with other software in compressed or archival form does not *
* trigger this provision, provided appropriate open source decompression *
* or de-archiving software is widely available for no charge. For the *
* purposes of this license, an installer is considered to include Covered *
* Software even if it actually retrieves a copy of Covered Software from *
* another source during runtime (such as by downloading it from the *
* Internet). *
* *
* o Links (statically or dynamically) to a library which does any of the *
* above. *
* *
* o Executes a helper program, module, or script to do any of the above. *
* *
* This list is not exclusive, but is meant to clarify our interpretation *
* of derived works with some common examples. Other people may interpret *
* the plain GPL differently, so we consider this a special exception to *
* the GPL that we apply to Covered Software. Works which meet any of *
* these conditions must conform to all of the terms of this license, *
* particularly including the GPL Section 3 requirements of providing *
* source code and allowing free redistribution of the work as a whole. *
* *
* As another special exception to the GPL terms, the Nmap Project grants *
* permission to link the code of this program with any version of the *
* OpenSSL library which is distributed under a license identical to that *
* listed in the included docs/licenses/OpenSSL.txt file, and distribute *
* linked combinations including the two. *
* *
* The Nmap Project has permission to redistribute Npcap, a packet *
* capturing driver and library for the Microsoft Windows platform. *
* Npcap is a separate work with it's own license rather than this Nmap *
* license. Since the Npcap license does not permit redistribution *
* without special permission, our Nmap Windows binary packages which *
* contain Npcap may not be redistributed without special permission. *
* *
* Any redistribution of Covered Software, including any derived works, *
* must obey and carry forward all of the terms of this license, including *
* obeying all GPL rules and restrictions. For example, source code of *
* the whole work must be provided and free redistribution must be *
* allowed. All GPL references to "this License", are to be treated as *
* including the terms and conditions of this license text as well. *
* *
* Because this license imposes special exceptions to the GPL, Covered *
* Work may not be combined (even as part of a larger work) with plain GPL *
* software. The terms, conditions, and exceptions of this license must *
* be included as well. This license is incompatible with some other open *
* source licenses as well. In some cases we can relicense portions of *
* Nmap or grant special permissions to use it in other open source *
* software. Please contact fyodor@nmap.org with any such requests. *
* Similarly, we don't incorporate incompatible open source software into *
* Covered Software without special permission from the copyright holders. *
* *
* If you have any questions about the licensing restrictions on using *
* Nmap in other works, are happy to help. As mentioned above, we also *
* offer alternative license to integrate Nmap into proprietary *
* applications and appliances. These contracts have been sold to dozens *
* of software vendors, and generally include a perpetual license as well *
* as providing for priority support and updates. They also fund the *
* continued development of Nmap. Please email sales@nmap.com for further *
* information. *
* *
* If you have received a written license agreement or contract for *
* Covered Software stating terms other than these, you may choose to use *
* and redistribute Covered Software under those terms instead of these. *
* *
* 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 send your changes *
* to the dev@nmap.org mailing list for possible incorporation into the *
* main distribution. By sending these changes to Fyodor or one of the *
* Insecure.Org development mailing lists, or checking them into the Nmap *
* source code repository, it is understood (unless you specify *
* otherwise) that you are offering the Nmap Project the unlimited, *
* non-exclusive right to reuse, modify, and relicense the code. Nmap *
* will always be available Open Source, but this is important because *
* the inability to relicense code has caused devastating problems for *
* other Free Software projects (such as KDE and NASM). We also *
* occasionally relicense the code to third parties as discussed above. *
* If you wish to specify special license conditions of your *
* contributions, just say so when you send them. *
* *
* This program 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. See the Nmap *
* license file for more details (it's in a COPYING file included with *
* Nmap, and also available from https://svn.nmap.org/nmap/COPYING) *
* *
***************************************************************************/
/* $Id$ */
#include <signal.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;
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);
}