/*************************************************************************** * nmap_error.cc -- Some simple error handling routines. * * * ***********************IMPORTANT NMAP LICENSE TERMS************************ * * * The Nmap Security Scanner is (C) 1996-2011 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 sales@insecure.com). Dozens of software vendors already * * license Nmap technology such as host discovery, port scanning, OS * * detection, and version detection. * * * * 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 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. 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 as well as helping to * * fund the continued development of Nmap technology. Please email * * sales@insecure.com 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 nmap-dev@insecure.org for possible incorporation into the main * * distribution. By sending these changes to Fyodor or one of the * * Insecure.Org development mailing lists, it is assumed 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 GNU * * General Public License v2.0 for more details at * * http://www.gnu.org/licenses/gpl-2.0.html , or in the COPYING file * * included with Nmap. * * * ***************************************************************************/ /* $Id$ */ #include "nmap_error.h" #include "output.h" #include "NmapOps.h" #include "xml.h" extern NmapOps o; #ifdef WIN32 #include #endif /* WIN32 */ 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_STDERR, fmt, ap); va_end(ap); if (o.log_errors) { va_start(ap, fmt); log_vwrite(LOG_NORMAL, fmt, ap); va_end(ap); } log_write(o.log_errors? LOG_NORMAL|LOG_STDERR : LOG_STDERR, "\nQUITTING!\n"); 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_STDERR, fmt, ap); va_end(ap); if (o.log_errors) { va_start(ap, fmt); log_vwrite(LOG_NORMAL, fmt, ap); va_end(ap); } log_write(o.log_errors? LOG_NORMAL|LOG_STDERR : 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(o.log_errors? LOG_NORMAL|LOG_STDERR : LOG_STDERR, "%s: %s (%d)\n", errbuf, strerror_s, error_number); 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 if (o.log_errors) 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_STDERR, fmt, ap); va_end(ap); if (o.log_errors) { va_start(ap, fmt); log_vwrite(LOG_NORMAL, fmt, ap); va_end(ap); } log_write(o.log_errors? LOG_NORMAL|LOG_STDERR : LOG_STDERR, ": %s (%d)\n", strerror_s, error_number); #ifdef WIN32 HeapFree(GetProcessHeap(), 0, strerror_s); #endif if (o.log_errors) log_flush(LOG_NORMAL); fflush(stderr); return; }