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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) 1996-2012 Insecure.Com LLC. Nmap is *
* also a registered trademark of Insecure.Com LLC. 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 with the clarifications and exceptions described *
* below. 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 [email protected]). 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 "derived 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: *
* o Integrates source code from Nmap *
* o Reads or includes Nmap copyrighted data files, such as *
* nmap-os-db or nmap-service-probes. *
* o Executes Nmap and parses the results (as opposed to typical shell or *
* execution-menu apps, which simply display raw Nmap output and so are *
* not derivative works.) *
* o Integrates/includes/aggregates Nmap into a proprietary executable *
* installer, such as those produced by InstallShield. *
* o Links to a library or executes a program that does any of the above *
* *
* The term "Nmap" should be taken to also include any portions or derived *
* works of Nmap, as well as other software we distribute under this *
* license such as Zenmap, Ncat, and Nping. This list is not exclusive, *
* but is meant to clarify our interpretation of derived works with some *
* common examples. Our interpretation applies only to Nmap--we don't *
* speak for other people's GPL works. *
* *
* If you have any questions about the GPL licensing restrictions on using *
* Nmap in non-GPL works, we would be 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 [email protected] for *
* further information. *
* *
* As a special exception to the GPL terms, Insecure.Com LLC 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. You must obey the GNU GPL in all *
* respects for all of the code used other than OpenSSL. If you modify *
* this file, you may extend this exception to your version of the file, *
* but you are not obligated to do so. *
* *
* If you received these files with a written license agreement or *
* contract stating terms other than the terms above, then that *
* alternative license agreement takes precedence over these comments. *
* *
* 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 (none *
* have been found so far). *
* *
* 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 [email protected] 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 (Insecure.Com LLC) 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"
#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:
3) 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_ARG 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]);
}
return nmap_main(myargc, myargv);
}
return nmap_main(argc, argv);
}