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output.cc
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/***************************************************************************
* output.cc -- Handles the Nmap output system. This currently involves *
* console-style human readable output, XML output, Script |<iddi3 *
* output, and the legacy grepable output (used to be called "machine *
* readable"). I expect that future output forms (such as HTML) may be *
* created by a different program, library, or script using the XML *
* output. *
* *
***********************IMPORTANT NMAP LICENSE TERMS************************
* *
* The Nmap Security Scanner is (C) 1996-2020 Insecure.Com 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.org) 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 [email protected] 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 "nmap.h"
#include "output.h"
#include "osscan.h"
#include "osscan2.h"
#include "NmapOps.h"
#include "NmapOutputTable.h"
#include "MACLookup.h"
#include "portreasons.h"
#include "protocols.h"
#include "FingerPrintResults.h"
#include "tcpip.h"
#include "Target.h"
#include "nmap_error.h"
#include "utils.h"
#include "xml.h"
#include "nbase.h"
#include "libnetutil/netutil.h"
#include <nsock.h>
#include <math.h>
#include <set>
#include <vector>
#include <list>
#include <sstream>
extern NmapOps o;
static const char *logtypes[LOG_NUM_FILES] = LOG_NAMES;
/* Used in creating skript kiddie style output. |<-R4d! */
static void skid_output(char *s) {
int i;
for (i = 0; s[i]; i++)
/* We need a 50/50 chance here, use a random number */
if ((get_random_u8() & 0x01) == 0)
/* Substitutions commented out are not known to me, but maybe look nice */
switch (s[i]) {
case 'A':
s[i] = '4';
break;
/* case 'B': s[i]='8'; break;
case 'b': s[i]='6'; break;
case 'c': s[i]='k'; break;
case 'C': s[i]='K'; break; */
case 'e':
case 'E':
s[i] = '3';
break;
case 'i':
case 'I':
s[i] = "!|1"[get_random_u8() % 3];
break;
/* case 'k': s[i]='c'; break;
case 'K': s[i]='C'; break; */
case 'o':
case 'O':
s[i] = '0';
break;
case 's':
case 'S':
if (s[i + 1] && !isalnum((int) (unsigned char) s[i + 1]))
s[i] = 'z';
else
s[i] = '$';
break;
case 'z':
s[i] = 's';
break;
case 'Z':
s[i] = 'S';
break;
} else {
if (s[i] >= 'A' && s[i] <= 'Z' && (get_random_u8() % 3 == 0)) {
s[i] += 'a' - 'A'; /* 1/3 chance of lower-case */
} else if (s[i] >= 'a' && s[i] <= 'z' && (get_random_u8() % 3 == 0)) {
s[i] -= 'a' - 'A'; /* 1/3 chance of upper-case */
}
}
}
/* Remove all "\nSF:" from fingerprints */
static char *servicefp_sf_remove(const char *str) {
char *temp = (char *) safe_malloc(strlen(str) + 1);
char *dst = temp, *src = (char *) str;
char *ampptr = 0;
while (*src) {
if (strncmp(src, "\nSF:", 4) == 0) {
src += 4;
continue;
}
/* Needed so "&something;" is not truncated midway */
if (*src == '&') {
ampptr = dst;
} else if (*src == ';') {
ampptr = 0;
}
*dst++ = *src++;
}
if (ampptr != 0) {
*ampptr = '\0';
} else {
*dst = '\0';
}
return temp;
}
// Prints an XML <service> element for the information given in
// serviceDeduction. This function should only be called if ether
// the service name or the service fingerprint is non-null.
static void print_xml_service(const struct serviceDeductions *sd) {
xml_open_start_tag("service");
xml_attribute("name", "%s", sd->name ? sd->name : "unknown");
if (sd->product)
xml_attribute("product", "%s", sd->product);
if (sd->version)
xml_attribute("version", "%s", sd->version);
if (sd->extrainfo)
xml_attribute("extrainfo", "%s", sd->extrainfo);
if (sd->hostname)
xml_attribute("hostname", "%s", sd->hostname);
if (sd->ostype)
xml_attribute("ostype", "%s", sd->ostype);
if (sd->devicetype)
xml_attribute("devicetype", "%s", sd->devicetype);
if (sd->service_fp) {
char *servicefp = servicefp_sf_remove(sd->service_fp);
xml_attribute("servicefp", "%s", servicefp);
free(servicefp);
}
if (sd->service_tunnel == SERVICE_TUNNEL_SSL)
xml_attribute("tunnel", "ssl");
xml_attribute("method", "%s", (sd->dtype == SERVICE_DETECTION_TABLE) ? "table" : "probed");
xml_attribute("conf", "%i", sd->name_confidence);
if (sd->cpe.empty()) {
xml_close_empty_tag();
} else {
unsigned int i;
xml_close_start_tag();
for (i = 0; i < sd->cpe.size(); i++) {
xml_start_tag("cpe");
xml_write_escaped("%s", sd->cpe[i]);
xml_end_tag();
}
xml_end_tag();
}
}
#ifdef WIN32
/* Show a fatal error explaining that an interface is not Ethernet and won't
work on Windows. Do nothing if --send-ip (PACKET_SEND_IP_STRONG) was used. */
void win32_fatal_raw_sockets(const char *devname) {
if ((o.sendpref & PACKET_SEND_IP_STRONG) != 0)
return;
if (devname != NULL) {
fatal("Only ethernet devices can be used for raw scans on Windows, and\n"
"\"%s\" is not an ethernet device. Use the --unprivileged option\n"
"for this scan.", devname);
} else {
fatal("Only ethernet devices can be used for raw scans on Windows. Use\n"
"the --unprivileged option for this scan.");
}
}
/* Display the mapping from libdnet interface names (like "eth0") to WinPcap
interface names (like "\Device\NPF_{...}"). This is the same mapping used by
eth_open and so can help diagnose connection problems. Additionally display
WinPcap interface names that are not mapped to by any libdnet name, in other
words the names of interfaces Nmap has no way of using.*/
static void print_iflist_pcap_mapping(const struct interface_info *iflist,
int numifs) {
pcap_if_t *pcap_ifs = NULL;
char errbuf[PCAP_ERRBUF_SIZE];
std::list<const pcap_if_t *> leftover_pcap_ifs;
std::list<const pcap_if_t *>::iterator leftover_p;
int i;
/* Build a list of "leftover" libpcap interfaces. Initially it contains all
the interfaces. */
if (o.have_pcap) {
if (pcap_findalldevs(&pcap_ifs, errbuf) == -1) {
fatal("pcap_findalldevs(): Cannot retrieve pcap interfaces: %s", errbuf);
}
for (const pcap_if_t *p = pcap_ifs; p != NULL; p = p->next)
leftover_pcap_ifs.push_front(p);
}
if (numifs > 0 || !leftover_pcap_ifs.empty()) {
NmapOutputTable Tbl(1 + numifs + leftover_pcap_ifs.size(), 2);
Tbl.addItem(0, 0, false, "DEV");
Tbl.addItem(0, 1, false, "WINDEVICE");
/* Show the libdnet names and what they map to. */
for (i = 0; i < numifs; i++) {
char pcap_name[1024];
if (DnetName2PcapName(iflist[i].devname, pcap_name, sizeof(pcap_name))) {
/* We got a name. Remove it from the list of leftovers. */
std::list<const pcap_if_t *>::iterator next;
for (leftover_p = leftover_pcap_ifs.begin();
leftover_p != leftover_pcap_ifs.end(); leftover_p = next) {
next = leftover_p;
next++;
if (strcmp((*leftover_p)->name, pcap_name) == 0)
leftover_pcap_ifs.erase(leftover_p);
}
} else {
Strncpy(pcap_name, "<none>", sizeof(pcap_name));
}
Tbl.addItem(i + 1, 0, false, iflist[i].devname);
Tbl.addItem(i + 1, 1, true, pcap_name);
}
/* Show the "leftover" libpcap interface names (those without a libdnet
name that maps to them). */
for (leftover_p = leftover_pcap_ifs.begin();
leftover_p != leftover_pcap_ifs.end();
leftover_p++) {
Tbl.addItem(i + 1, 0, false, "<none>");
Tbl.addItem(i + 1, 1, false, (*leftover_p)->name);
i++;
}
log_write(LOG_PLAIN, "%s\n", Tbl.printableTable(NULL));
log_flush_all();
}
if (pcap_ifs) {
pcap_freealldevs(pcap_ifs);
}
}
#endif
/* Print a detailed list of Nmap interfaces and routes to
normal/skiddy/stdout output */
int print_iflist(void) {
int numifs = 0, numroutes = 0;
struct interface_info *iflist;
struct sys_route *routes;
NmapOutputTable *Tbl = NULL;
char errstr[256];
const char *address = NULL;
errstr[0]='\0';
iflist = getinterfaces(&numifs, errstr, sizeof(errstr));
int i;
/* First let's handle interfaces ... */
if (iflist==NULL || numifs<=0) {
log_write(LOG_PLAIN, "INTERFACES: NONE FOUND(!)\n");
if (o.debugging)
log_write(LOG_STDOUT, "Reason: %s\n", errstr);
} else {
int devcol = 0, shortdevcol = 1, ipcol = 2, typecol = 3, upcol = 4, mtucol = 5, maccol = 6;
Tbl = new NmapOutputTable(numifs + 1, 7);
Tbl->addItem(0, devcol, false, "DEV", 3);
Tbl->addItem(0, shortdevcol, false, "(SHORT)", 7);
Tbl->addItem(0, ipcol, false, "IP/MASK", 7);
Tbl->addItem(0, typecol, false, "TYPE", 4);
Tbl->addItem(0, upcol, false, "UP", 2);
Tbl->addItem(0, mtucol, false, "MTU", 3);
Tbl->addItem(0, maccol, false, "MAC", 3);
for (i = 0; i < numifs; i++) {
Tbl->addItem(i + 1, devcol, false, iflist[i].devfullname);
Tbl->addItemFormatted(i + 1, shortdevcol, false, "(%s)",
iflist[i].devname);
address = inet_ntop_ez(&(iflist[i].addr), sizeof(iflist[i].addr));
Tbl->addItemFormatted(i + 1, ipcol, false, "%s/%d",
address == NULL ? "(none)" : address,
iflist[i].netmask_bits);
if (iflist[i].device_type == devt_ethernet) {
Tbl->addItem(i + 1, typecol, false, "ethernet");
Tbl->addItemFormatted(i + 1, maccol, false,
"%02X:%02X:%02X:%02X:%02X:%02X",
iflist[i].mac[0], iflist[i].mac[1],
iflist[i].mac[2], iflist[i].mac[3],
iflist[i].mac[4], iflist[i].mac[5]);
} else if (iflist[i].device_type == devt_loopback)
Tbl->addItem(i + 1, typecol, false, "loopback");
else if (iflist[i].device_type == devt_p2p)
Tbl->addItem(i + 1, typecol, false, "point2point");
else
Tbl->addItem(i + 1, typecol, false, "other");
Tbl->addItem(i + 1, upcol, false,
(iflist[i].device_up ? "up" : "down"));
Tbl->addItemFormatted(i + 1, mtucol, false, "%d", iflist[i].mtu);
}
log_write(LOG_PLAIN, "************************INTERFACES************************\n");
log_write(LOG_PLAIN, "%s\n", Tbl->printableTable(NULL));
log_flush_all();
delete Tbl;
}
#ifdef WIN32
/* Print the libdnet->libpcap interface name mapping. */
print_iflist_pcap_mapping(iflist, numifs);
#endif
/* OK -- time to handle routes */
errstr[0]='\0';
routes = getsysroutes(&numroutes, errstr, sizeof(errstr));
u16 nbits;
if (routes==NULL || numroutes<= 0) {
log_write(LOG_PLAIN, "ROUTES: NONE FOUND(!)\n");
if (o.debugging)
log_write(LOG_STDOUT, "Reason: %s\n", errstr);
} else {
int dstcol = 0, devcol = 1, metcol = 2, gwcol = 3;
Tbl = new NmapOutputTable(numroutes + 1, 4);
Tbl->addItem(0, dstcol, false, "DST/MASK", 8);
Tbl->addItem(0, devcol, false, "DEV", 3);
Tbl->addItem(0, metcol, false, "METRIC", 6);
Tbl->addItem(0, gwcol, false, "GATEWAY", 7);
for (i = 0; i < numroutes; i++) {
nbits = routes[i].netmask_bits;
Tbl->addItemFormatted(i + 1, dstcol, false, "%s/%d",
inet_ntop_ez(&routes[i].dest, sizeof(routes[i].dest)), nbits);
Tbl->addItem(i + 1, devcol, false, routes[i].device->devfullname);
Tbl->addItemFormatted(i + 1, metcol, false, "%d", routes[i].metric);
if (!sockaddr_equal_zero(&routes[i].gw))
Tbl->addItem(i + 1, gwcol, true, inet_ntop_ez(&routes[i].gw, sizeof(routes[i].gw)));
}
log_write(LOG_PLAIN, "**************************ROUTES**************************\n");
log_write(LOG_PLAIN, "%s\n", Tbl->printableTable(NULL));
log_flush_all();
delete Tbl;
}
return 0;
}
#ifndef NOLUA
/* Escape control characters to make a string safe to display on a terminal. */
static std::string escape_for_screen(const std::string s) {
std::string r;
for (unsigned int i = 0; i < s.size(); i++) {
char buf[5];
unsigned char c = s[i];
// Printable and some whitespace ok. "\r" not ok because it overwrites the line.
if (c == '\t' || c == '\n' || (0x20 <= c && c <= 0x7e)) {
r += c;
} else {
Snprintf(buf, sizeof(buf), "\\x%02X", c);
r += buf;
}
}
return r;
}
/* Do something to protect characters that can't appear in XML. This is not a
reversible transform, more a last-ditch effort to write readable XML with
characters that shouldn't be part of regular output anyway. The escaping that
xml_write_escaped is not enough; some characters are not allowed to appear in
XML, not even escaped. */
std::string protect_xml(const std::string s) {
std::string r;
for (unsigned int i = 0; i < s.size(); i++) {
char buf[5];
unsigned char c = s[i];
// Printable and some whitespace ok.
if (c == '\t' || c == '\r' || c == '\n' || (0x20 <= c && c <= 0x7e)) {
r += c;
} else {
Snprintf(buf, sizeof(buf), "\\x%02X", c);
r += buf;
}
}
return r;
}
static char *formatScriptOutput(const ScriptResult *sr) {
std::vector<std::string> lines;
std::string c_output;
const char *p, *q;
std::string result;
unsigned int i;
c_output = escape_for_screen(sr->get_output_str());
if (c_output.empty())
return NULL;
p = c_output.c_str();
while (*p != '\0') {
q = strchr(p, '\n');
if (q == NULL) {
lines.push_back(std::string(p));
break;
} else {
lines.push_back(std::string(p, q - p));
p = q + 1;
}
}
if (lines.empty())
lines.push_back("");
for (i = 0; i < lines.size(); i++) {
if (i < lines.size() - 1)
result += "| ";
else
result += "|_";
if (i == 0)
result += std::string(sr->get_id()) + ": ";
result += lines[i];
if (i < lines.size() - 1)
result += "\n";
}
return strdup(result.c_str());
}
#endif /* NOLUA */
/* Output a list of ports, compressing ranges like 80-85 */
static void output_rangelist_given_ports(int logt, const unsigned short *ports, int numports);
/* Prints the familiar Nmap tabular output showing the "interesting"
ports found on the machine. It also handles the Machine/Grepable
output and the XML output. It is pretty ugly -- in particular I
should write helper functions to handle the table creation */
void printportoutput(const Target *currenths, const PortList *plist) {
char protocol[MAX_IPPROTOSTRLEN + 1];
char portinfo[64];
char grepvers[256];
char *p;
const char *state;
char serviceinfo[64];
int i;
int first = 1;
struct protoent *proto;
Port *current;
Port port;
char hostname[1200];
struct serviceDeductions sd;
NmapOutputTable *Tbl = NULL;
int portcol = -1; // port or IP protocol #
int statecol = -1; // port/protocol state
int servicecol = -1; // service or protocol name
int versioncol = -1;
int reasoncol = -1;
int colno = 0;
unsigned int rowno;
int numrows;
int numignoredports = plist->numIgnoredPorts();
int numports = plist->numPorts();
state_reason_summary_t *reasons, *currentr;
std::vector<const char *> saved_servicefps;
if (o.noportscan || numports == 0)
return;
xml_start_tag("ports");
log_write(LOG_MACHINE, "Host: %s (%s)", currenths->targetipstr(),
currenths->HostName());
if ((o.verbose > 1 || o.debugging) && currenths->StartTime()) {
time_t tm_secs, tm_sece;
struct tm tm;
int err;
char tbufs[128];
tm_secs = currenths->StartTime();
tm_sece = currenths->EndTime();
err = n_localtime(&tm_secs, &tm);
if (err) {
error("Error in localtime: %s", strerror(err));
log_write(LOG_PLAIN, "Scanned for %lds\n",
(long) (tm_sece - tm_secs));
}
else {
if (strftime(tbufs, sizeof(tbufs), "%Y-%m-%d %H:%M:%S %Z", &tm) <= 0) {
error("Unable to properly format host start time");
log_write(LOG_PLAIN, "Scanned for %lds\n",
(long) (tm_sece - tm_secs));
}
else {
log_write(LOG_PLAIN, "Scanned at %s for %lds\n",
tbufs, (long) (tm_sece - tm_secs));
}
}
}
int prevstate = PORT_UNKNOWN;
int istate;
while ((istate = plist->nextIgnoredState(prevstate)) != PORT_UNKNOWN) {
i = plist->getStateCounts(istate);
xml_open_start_tag("extraports");
xml_attribute("state", "%s", statenum2str(istate));
xml_attribute("count", "%d", i);
xml_close_start_tag();
xml_newline();
/* Show line like:
Not shown: 98 open|filtered udp ports (no-response), 59 closed tcp ports (reset)
if appropriate (note that states are reverse-sorted by # of ports) */
if (prevstate == PORT_UNKNOWN) {
// First time through, check special case
if (numignoredports == numports) {
log_write(LOG_PLAIN, "All %d scanned ports on %s are in ignored states.\n",
numignoredports, currenths->NameIP(hostname, sizeof(hostname)));
log_write(LOG_MACHINE, "\t%s: ", (o.ipprotscan) ? "Protocols" : "Ports");
/* Grepable output supports only one ignored state. */
if (plist->numIgnoredStates() == 1) {
log_write(LOG_MACHINE, "\tIgnored State: %s (%d)", statenum2str(istate), i);
}
}
log_write(LOG_PLAIN, "Not shown: ");
} else {
log_write(LOG_PLAIN, ", ");
}
if((currentr = reasons = get_state_reason_summary(plist, istate)) == NULL) {
log_write(LOG_PLAIN, "%d %s %s%s", i, statenum2str(istate),
o.ipprotscan ? "protocol" : "port",
plist->getStateCounts(istate) == 1 ? "" : "s");
prevstate = istate;
continue;
}
while(currentr != NULL) {
if(currentr->count > 0) {
xml_open_start_tag("extrareasons");
xml_attribute("reason", "%s", reason_str(currentr->reason_id, SINGULAR));
xml_attribute("count", "%d", currentr->count);
xml_attribute("proto", "%s", IPPROTO2STR(currentr->proto));
xml_write_raw(" ports=\"");
output_rangelist_given_ports(LOG_XML, currentr->ports, currentr->count);
xml_write_raw("\"");
xml_close_empty_tag();
xml_newline();
if (currentr != reasons)
log_write(LOG_PLAIN, ", ");
log_write(LOG_PLAIN, "%d %s %s %s%s (%s)",
currentr->count, statenum2str(istate), IPPROTO2STR(currentr->proto),
o.ipprotscan ? "protocol" : "port",
plist->getStateCounts(istate) == 1 ? "" : "s",
reason_str(currentr->reason_id, SINGULAR));
}
currentr = currentr->next;
}
state_reason_summary_dinit(reasons);
xml_end_tag();
xml_newline();
prevstate = istate;
}
log_write(LOG_PLAIN, "\n");
if (numignoredports == numports) {
// Nothing left to show.
xml_end_tag(); /* ports */
xml_newline();
log_flush_all();
return;
}
/* OK, now it is time to deal with the service table ... */
colno = 0;
portcol = colno++;
statecol = colno++;
servicecol = colno++;
if (o.reason)
reasoncol = colno++;
if (o.servicescan)
versioncol = colno++;
numrows = numports - numignoredports;
#ifndef NOLUA
int scriptrows = 0;
if (plist->numscriptresults > 0)
scriptrows = plist->numscriptresults;
numrows += scriptrows;
#endif
assert(numrows > 0);
numrows++; // The header counts as a row
Tbl = new NmapOutputTable(numrows, colno);
// Lets start with the headers
if (o.ipprotscan)
Tbl->addItem(0, portcol, false, "PROTOCOL", 8);
else
Tbl->addItem(0, portcol, false, "PORT", 4);
Tbl->addItem(0, statecol, false, "STATE", 5);
Tbl->addItem(0, servicecol, false, "SERVICE", 7);
if (versioncol > 0)
Tbl->addItem(0, versioncol, false, "VERSION", 7);
if (reasoncol > 0)
Tbl->addItem(0, reasoncol, false, "REASON", 6);
log_write(LOG_MACHINE, "\t%s: ", (o.ipprotscan) ? "Protocols" : "Ports");
rowno = 1;
if (o.ipprotscan) {
current = NULL;
while ((current = plist->nextPort(current, &port, IPPROTO_IP, 0)) != NULL) {
if (!plist->isIgnoredState(current->state, NULL)) {
if (!first)
log_write(LOG_MACHINE, ", ");
else
first = 0;
if (o.reason) {
if (current->reason.ttl)
Tbl->addItemFormatted(rowno, reasoncol, false, "%s ttl %d",
port_reason_str(current->reason), current->reason.ttl);
else
Tbl->addItem(rowno, reasoncol, true, port_reason_str(current->reason));
}
state = statenum2str(current->state);
proto = nmap_getprotbynum(current->portno);
Snprintf(portinfo, sizeof(portinfo), "%s", proto ? proto->p_name : "unknown");
Tbl->addItemFormatted(rowno, portcol, false, "%d", current->portno);
Tbl->addItem(rowno, statecol, true, state);
Tbl->addItem(rowno, servicecol, true, portinfo);
log_write(LOG_MACHINE, "%d/%s/%s/", current->portno, state,
(proto) ? proto->p_name : "");
xml_open_start_tag("port");
xml_attribute("protocol", "ip");
xml_attribute("portid", "%d", current->portno);
xml_close_start_tag();
xml_open_start_tag("state");
xml_attribute("state", "%s", state);
xml_attribute("reason", "%s", reason_str(current->reason.reason_id, SINGULAR));
xml_attribute("reason_ttl", "%d", current->reason.ttl);
if (current->reason.ip_addr.sockaddr.sa_family != AF_UNSPEC) {
struct sockaddr_storage ss;
memcpy(&ss, ¤t->reason.ip_addr, sizeof(current->reason.ip_addr));
xml_attribute("reason_ip", "%s", inet_ntop_ez(&ss, sizeof(ss)));
}
xml_close_empty_tag();
if (proto && proto->p_name && *proto->p_name) {
xml_newline();
xml_open_start_tag("service");
xml_attribute("name", "%s", proto->p_name);
xml_attribute("conf", "8");
xml_attribute("method", "table");
xml_close_empty_tag();
}
xml_end_tag(); /* port */
xml_newline();
rowno++;
}
}
} else {
char fullversion[160];
current = NULL;
while ((current = plist->nextPort(current, &port, TCPANDUDPANDSCTP, 0)) != NULL) {
if (!plist->isIgnoredState(current->state, NULL)) {
if (!first)
log_write(LOG_MACHINE, ", ");
else
first = 0;
strcpy(protocol, IPPROTO2STR(current->proto));
Snprintf(portinfo, sizeof(portinfo), "%d/%s", current->portno, protocol);
state = statenum2str(current->state);
plist->getServiceDeductions(current->portno, current->proto, &sd);
if (sd.service_fp && saved_servicefps.size() <= 8)
saved_servicefps.push_back(sd.service_fp);
current->getNmapServiceName(serviceinfo, sizeof(serviceinfo));
Tbl->addItem(rowno, portcol, true, portinfo);
Tbl->addItem(rowno, statecol, false, state);
Tbl->addItem(rowno, servicecol, true, serviceinfo);
if (o.reason) {
if (current->reason.ttl)
Tbl->addItemFormatted(rowno, reasoncol, false, "%s ttl %d",
port_reason_str(current->reason), current->reason.ttl);
else
Tbl->addItem(rowno, reasoncol, true, port_reason_str(current->reason));
}
sd.populateFullVersionString(fullversion, sizeof(fullversion));
if (*fullversion && versioncol > 0)
Tbl->addItem(rowno, versioncol, true, fullversion);
// How should we escape illegal chars in grepable output?
// Well, a reasonably clean way would be backslash escapes
// such as \/ and \\ . // But that makes it harder to pick
// out fields with awk, cut, and such. So I'm gonna use the
// ugly hack (fitting to grepable output) of replacing the '/'
// character with '|' in the version field.
Strncpy(grepvers, fullversion, sizeof(grepvers) / sizeof(*grepvers));
p = grepvers;
while ((p = strchr(p, '/'))) {
*p = '|';
p++;
}
if (sd.name || sd.service_fp || sd.service_tunnel != SERVICE_TUNNEL_NONE) {
p = serviceinfo;
while ((p = strchr(p, '/'))) {
*p = '|';
p++;
}
}
else {
serviceinfo[0] = '\0';
}
log_write(LOG_MACHINE, "%d/%s/%s//%s//%s/", current->portno,
state, protocol, serviceinfo, grepvers);
xml_open_start_tag("port");
xml_attribute("protocol", "%s", protocol);
xml_attribute("portid", "%d", current->portno);
xml_close_start_tag();
xml_open_start_tag("state");
xml_attribute("state", "%s", state);
xml_attribute("reason", "%s", reason_str(current->reason.reason_id, SINGULAR));
xml_attribute("reason_ttl", "%d", current->reason.ttl);
if (current->reason.ip_addr.sockaddr.sa_family != AF_UNSPEC) {
struct sockaddr_storage ss;
memcpy(&ss, ¤t->reason.ip_addr, sizeof(current->reason.ip_addr));
xml_attribute("reason_ip", "%s", inet_ntop_ez(&ss, sizeof(ss)));
}
xml_close_empty_tag();
if (sd.name || sd.service_fp || sd.service_tunnel != SERVICE_TUNNEL_NONE)
print_xml_service(&sd);
rowno++;
#ifndef NOLUA
if (o.script) {
ScriptResults::const_iterator ssr_iter;
for (ssr_iter = current->scriptResults.begin();
ssr_iter != current->scriptResults.end(); ssr_iter++) {
(*ssr_iter)->write_xml();
char *script_output = formatScriptOutput((*ssr_iter));
if (script_output != NULL) {
Tbl->addItem(rowno, 0, true, true, script_output);
free(script_output);
}
rowno++;
}
}
#endif
xml_end_tag(); /* port */
xml_newline();
}
}
}
/* log_write(LOG_PLAIN,"\n"); */
/* Grepable output supports only one ignored state. */
if (plist->numIgnoredStates() == 1) {
istate = plist->nextIgnoredState(PORT_UNKNOWN);
if (plist->getStateCounts(istate) > 0)
log_write(LOG_MACHINE, "\tIgnored State: %s (%d)",
statenum2str(istate), plist->getStateCounts(istate));
}
xml_end_tag(); /* ports */
xml_newline();
if (o.defeat_rst_ratelimit && o.TCPScan() && plist->getStateCounts(PORT_FILTERED) > 0) {
log_write(LOG_PLAIN, "Some closed ports may be reported as filtered due to --defeat-rst-ratelimit\n");
}
// Now we write the table for the user
log_write(LOG_PLAIN, "%s", Tbl->printableTable(NULL));
delete Tbl;
// There may be service fingerprints I would like the user to submit
if (saved_servicefps.size() > 0) {
int numfps = saved_servicefps.size();
log_write(LOG_PLAIN, "%d service%s unrecognized despite returning data."
" If you know the service/version, please submit the following"
" fingerprint%s at"
" https://nmap.org/cgi-bin/submit.cgi?new-service :\n",
numfps, (numfps > 1) ? "s" : "", (numfps > 1) ? "s" : "");
for (i = 0; i < numfps; i++) {
if (numfps > 1)
log_write(LOG_PLAIN, "==============NEXT SERVICE FINGERPRINT (SUBMIT INDIVIDUALLY)==============\n");
log_write(LOG_PLAIN, "%s\n", saved_servicefps[i]);
}
}
log_flush_all();
}
/* MAX_STRFTIME_EXPANSION is the maximum length that a single %_ escape can
* expand to, not including null terminator. If you add another supported
* escape, check that it doesn't exceed this value, otherwise increase it.
*/
#define MAX_STRFTIME_EXPANSION 10
char *logfilename(const char *str, struct tm *tm) {
char *ret, *end, *p;
// Max expansion: "%F" => "YYYY-mm-dd"
int retlen = strlen(str) * (MAX_STRFTIME_EXPANSION - 2) + 1;
size_t written = 0;
ret = (char *) safe_malloc(retlen);
end = ret + retlen;
for (p = ret; *str; str++) {
if (*str == '%') {
str++;
written = 0;
if (!*str)
break;
#define FTIME_CASE(_fmt, _fmt_str) case _fmt: \
written = strftime(p, end - p, _fmt_str, tm); \
break;
switch (*str) {
FTIME_CASE('H', "%H");
FTIME_CASE('M', "%M");
FTIME_CASE('S', "%S");
FTIME_CASE('T', "%H%M%S");
FTIME_CASE('R', "%H%M");
FTIME_CASE('m', "%m");
FTIME_CASE('d', "%d");
FTIME_CASE('y', "%y");
FTIME_CASE('Y', "%Y");
FTIME_CASE('D', "%m%d%y");
FTIME_CASE('F', "%Y-%m-%d");
default:
*p++ = *str;
continue;
}
assert(end - p > 1);
p += written;
} else {
*p++ = *str;
}
}
*p = 0;
return (char *) safe_realloc(ret, strlen(ret) + 1);
}
/* This is the workhorse of the logging functions. Usually it is
called through log_write(), but it can be called directly if you are dealing
with a vfprintf-style va_list. YOU MUST SANDWICH EACH EXECUTION OF THIS CALL
BETWEEN va_start() AND va_end() calls. */
void log_vwrite(int logt, const char *fmt, va_list ap) {
char *writebuf;
bool skid_noxlate = false;
int rc = 0;
int len;
int fileidx = 0;
int l;
int logtype;
va_list apcopy;
for (logtype = 1; logtype <= LOG_MAX; logtype <<= 1) {
if (!(logt & logtype))
continue;
switch (logtype) {
case LOG_STDOUT:
vfprintf(o.nmap_stdout, fmt, ap);
break;
case LOG_STDERR:
fflush(stdout); // Otherwise some systems will print stderr out of order
vfprintf(stderr, fmt, ap);
break;
case LOG_SKID_NOXLT:
skid_noxlate = true;
/* no break */
case LOG_NORMAL:
case LOG_MACHINE:
case LOG_SKID:
case LOG_XML:
if (logtype == LOG_SKID_NOXLT)
l = LOG_SKID;
else
l = logtype;
fileidx = 0;
while ((l & 1) == 0) {
fileidx++;
l >>= 1;
}
assert(fileidx < LOG_NUM_FILES);
if (o.logfd[fileidx]) {
len = alloc_vsprintf(&writebuf, fmt, ap);
if (writebuf == NULL)
fatal("%s: alloc_vsprintf failed.", __func__);
if (len) {
if ((logtype & (LOG_SKID|LOG_SKID_NOXLT)) && !skid_noxlate)
skid_output(writebuf);
rc = fwrite(writebuf, len, 1, o.logfd[fileidx]);
if (rc != 1) {
fatal("Failed to write %d bytes of data to (logt==%d) stream. fwrite returned %d. Quitting.", len, logtype, rc);
}
va_end(apcopy);
}
free(writebuf);
}
break;
default:
/* Unknown log type.
* ---
* Note that we're not calling fatal() here to avoid infinite call loop
* between fatal() and this log_vwrite() function. */
assert(0); /* We want people to report it. */
}
}
return;
}
/* Write some information (printf style args) to the given log stream(s).
Remember to watch out for format string bugs. */
void log_write(int logt, const char *fmt, ...) {
va_list ap;
assert(logt > 0);