/*************************************************************************** * nmap_error.cc -- Some simple error handling routines. * * * ***********************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 "nmap_error.h" #include "output.h" #include "NmapOps.h" #include "xml.h" #include extern NmapOps o; #ifdef WIN32 #include #endif /* WIN32 */ #ifndef HAVE_STRERROR char *strerror(int errnum) { static char buf[1024]; sprintf(buf, "your system is too old for strerror of errno %d\n", errnum); return buf; } #endif void fatal(const char *fmt, ...) { time_t timep; struct timeval tv; va_list ap; gettimeofday(&tv, NULL); timep = time(NULL); va_start(ap, fmt); log_vwrite(LOG_NORMAL|LOG_STDERR, fmt, ap); va_end(ap); log_write(LOG_NORMAL|LOG_STDERR, "\nQUITTING!\n"); if (xml_tag_open()) xml_close_start_tag(); if (!xml_root_written()) xml_start_tag("nmaprun"); /* Close all open XML elements but one. */ while (xml_depth() > 1) { xml_end_tag(); xml_newline(); } if (xml_depth() == 1) { char errbuf[1024]; va_start(ap, fmt); Vsnprintf(errbuf, sizeof(errbuf), fmt, ap); va_end(ap); xml_start_tag("runstats"); print_xml_finished_open(timep, &tv); xml_attribute("exit", "error"); xml_attribute("errormsg", "%s", errbuf); xml_close_empty_tag(); print_xml_hosts(); xml_newline(); xml_end_tag(); /* runstats */ xml_newline(); xml_end_tag(); /* nmaprun */ xml_newline(); } exit(1); } void error(const char *fmt, ...) { va_list ap; va_start(ap, fmt); log_vwrite(LOG_NORMAL|LOG_STDERR, fmt, ap); va_end(ap); log_write(LOG_NORMAL|LOG_STDERR , "\n"); return; } void pfatal(const char *fmt, ...) { time_t timep; struct timeval tv; va_list ap; int error_number; char errbuf[1024], *strerror_s; #ifdef WIN32 error_number = GetLastError(); FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM, NULL, error_number, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &strerror_s, 0, NULL); #else error_number = errno; strerror_s = strerror(error_number); #endif gettimeofday(&tv, NULL); timep = time(NULL); va_start(ap, fmt); Vsnprintf(errbuf, sizeof(errbuf), fmt, ap); va_end(ap); log_write(LOG_NORMAL|LOG_STDERR, "%s: %s (%d)\n", errbuf, strerror_s, error_number); if (xml_tag_open()) xml_close_start_tag(); if (!xml_root_written()) xml_start_tag("nmaprun"); /* Close all open XML elements but one. */ while (xml_depth() > 1) { xml_end_tag(); xml_newline(); } if (xml_depth() == 1) { xml_start_tag("runstats"); print_xml_finished_open(timep, &tv); xml_attribute("exit", "error"); xml_attribute("errormsg", "%s: %s (%d)", errbuf, strerror_s, error_number); xml_close_empty_tag(); print_xml_hosts(); xml_newline(); xml_end_tag(); /* runstats */ xml_newline(); xml_end_tag(); /* nmaprun */ xml_newline(); } #ifdef WIN32 HeapFree(GetProcessHeap(), 0, strerror_s); #endif log_flush(LOG_NORMAL); fflush(stderr); exit(1); } /* This function is the Nmap version of perror. It is like pfatal, but it doesn't write to XML and it only returns, doesn't exit. */ void gh_perror(const char *fmt, ...) { va_list ap; int error_number; char *strerror_s; #ifdef WIN32 error_number = GetLastError(); FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM, NULL, error_number, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &strerror_s, 0, NULL); #else error_number = errno; strerror_s = strerror(error_number); #endif va_start(ap, fmt); log_vwrite(LOG_NORMAL|LOG_STDERR, fmt, ap); va_end(ap); log_write(LOG_NORMAL|LOG_STDERR, ": %s (%d)\n", strerror_s, error_number); #ifdef WIN32 HeapFree(GetProcessHeap(), 0, strerror_s); #endif log_flush(LOG_NORMAL); fflush(stderr); return; }