static int ctcp_CHAT(char *nick, char *uhost, struct userrec *u, char *object, char *keyword, char *text)
{
if (!ischanhub())
return BIND_RET_LOG;
if (u_pass_match(u, "-")) {
strlcat(ctcp_reply, "\001ERROR no password set\001", sizeof(ctcp_reply));
return BIND_RET_BREAK;
}
int ix = -1, i = 0;
for (i = 0; i < dcc_total; i++) {
if (dcc[i].type && (dcc[i].type->flags & DCT_LISTEN) && (!strcmp(dcc[i].nick, "(telnet)")))
ix = i;
}
if (!iptolong(getmyip())) {
simple_snprintf(&ctcp_reply[strlen(ctcp_reply)], sizeof(ctcp_reply) - strlen(ctcp_reply), "\001ERROR no ipv4 ip defined. Use /dcc chat %s\001", botname);
} else if (dcc_total == max_dcc || (ix < 0 && (ix = listen_all(0, 0, 0)) < 0))
strlcat(ctcp_reply, "\001ERROR no telnet port\001", sizeof(ctcp_reply));
else {
if (listen_time <= 2)
listen_time++;
/* do me a favour and don't change this back to a CTCP reply,
* CTCP replies are NOTICE's this has to be a PRIVMSG
* -poptix 5/1/1997 */
bd::String msg;
msg = bd::String::printf("\001DCC CHAT chat %lu %u\001", iptolong(getmyip()), dcc[ix].port);
privmsg(nick, msg.c_str(), DP_SERVER);
}
return BIND_RET_BREAK;
}
static void remote_filereq(int idx, char *from, char *file)
{
char *p, what[256], dir[256], s[256], s1[256], *reject;
FILE *f;
filedb fdb;
long i = 0;
strcpy(what, file);
p = strrchr(what, '/');
if (p == NULL)
dir[0] = 0;
else {
*p = 0;
strcpy(dir, what);
strcpy(what, p + 1);
}
f = filedb_open(dir, 0);
reject = NULL;
if (f == NULL) {
reject = FILES_DIRDNE;
} else {
if (!findmatch(f, what, &i, &fdb)) {
reject = FILES_FILEDNE;
filedb_close(f);
} else {
if ((!(fdb.stat & FILE_SHARE)) ||
(fdb.stat & (FILE_HIDDEN | FILE_DIR))) {
reject = FILES_NOSHARE;
filedb_close(f);
} else {
filedb_close(f);
/* copy to /tmp if needed */
sprintf(s1, "%s%s%s%s", dccdir, dir, dir[0] ? "/" : "", what);
if (copy_to_tmp) {
sprintf(s, "%s%s", tempdir, what);
copyfile(s1, s);
} else
strcpy(s, s1);
i = raw_dcc_send(s, "*remote", FILES_REMOTE, s);
if (i > 0) {
wipe_tmp_filename(s, -1);
reject = FILES_SENDERR;
}
}
}
}
simple_sprintf(s1, "%s:%s/%s", botnetnick, dir, what);
if (reject) {
botnet_send_filereject(idx, s1, from, reject);
return;
}
/* grab info from dcc struct and bounce real request across net */
i = dcc_total - 1;
simple_sprintf(s, "%d %u %d", iptolong(getmyip()), dcc[i].port,
dcc[i].u.xfer->length);
botnet_send_filesend(idx, s1, from, s);
putlog(LOG_FILES, "*", FILES_REMOTEREQ, dir, dir[0] ? "/" : "", what);
}
void setup_HQ(int n) {
dcc[n].addr = iptolong(getmyip());
dcc[n].sock = STDOUT;
dcc[n].timeval = now;
dcc[n].u.chat->con_flags = conmask | LOG_ALL;
dcc[n].u.chat->strip_flags = STRIP_ALL;
dcc[n].status = STAT_ECHO;
strlcpy(dcc[n].nick, STR("HQ"), sizeof(dcc[n].nick));
strlcpy(dcc[n].host, STR("llama@console"), sizeof(dcc[n].host));
dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
/* Make sure there's an innocuous HQ user if needed */
if (!dcc[n].user) {
userlist = adduser(userlist, dcc[n].nick, "none", "-", USER_ADMIN | USER_OWNER | USER_MASTER | USER_VOICE | USER_OP | USER_PARTY | USER_CHUBA | USER_HUBA, 0);
dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
}
}
static void remote_filereq(int idx, char *from, char *file)
{
char *p = NULL, *what = NULL, *dir = NULL,
*s1 = NULL, *reject = NULL, *s = NULL;
FILE *fdb = NULL;
int i = 0;
filedb_entry *fdbe = NULL;
malloc_strcpy(what, file);
p = strrchr(what, '/');
if (p) {
*p = 0;
malloc_strcpy(dir, what);
strcpy(what, p + 1);
} else {
malloc_strcpy(dir, "");
}
fdb = filedb_open(dir, 0);
if (!fdb) {
reject = FILES_DIRDNE;
} else {
filedb_readtop(fdb, NULL);
fdbe = filedb_matchfile(fdb, ftell(fdb), what);
filedb_close(fdb);
if (!fdbe) {
reject = FILES_FILEDNE;
} else {
if ((!(fdbe->stat & FILE_SHARE)) ||
(fdbe->stat & (FILE_HIDDEN | FILE_DIR)))
reject = FILES_NOSHARE;
else {
s1 = nmalloc(strlen(dccdir) + strlen(dir) + strlen(what) + 2);
/* Copy to /tmp if needed */
sprintf(s1, "%s%s%s%s", dccdir, dir, dir[0] ? "/" : "", what);
if (copy_to_tmp) {
s = nmalloc(strlen(tempdir) + strlen(what) + 1);
sprintf(s, "%s%s", tempdir, what);
copyfile(s1, s);
} else
s = s1;
i = raw_dcc_send(s, "*remote", FILES_REMOTE, s);
if (i > 0) {
wipe_tmp_filename(s, -1);
reject = FILES_SENDERR;
}
if (s1 != s)
my_free(s);
my_free(s1);
}
free_fdbe(&fdbe);
}
}
s1 = nmalloc(strlen(botnetnick) + strlen(dir) + strlen(what) + 3);
simple_sprintf(s1, "%s:%s/%s", botnetnick, dir, what);
if (reject) {
botnet_send_filereject(idx, s1, from, reject);
my_free(s1);
my_free(what);
my_free(dir);
return;
}
/* Grab info from dcc struct and bounce real request across net */
i = dcc_total - 1;
s = nmalloc(40); /* Enough? */
simple_sprintf(s, "%d %u %d", iptolong(getmyip()), dcc[i].port,
dcc[i].u.xfer->length);
botnet_send_filesend(idx, s1, from, s);
putlog(LOG_FILES, "*", FILES_REMOTEREQ, dir, dir[0] ? "/" : "", what);
my_free(s1);
my_free(s);
my_free(what);
my_free(dir);
}
int main(int argc, char** argv)
{
int exitstatus = 0;
/* declare CL args */
arg_lit_t *help = (arg_lit_t*) arg_lit0("h", "help", "prints the command glossary");
arg_lit_t *myip = (arg_lit_t*) arg_lit0("m", NULL, "prints the external ip of the interface currently being used");
arg_lit_t *bounce_opt = (arg_lit_t*) arg_lit0("b", NULL, "creates a bouncer to send the message received back to the sender");
arg_lit_t *listen_opt = (arg_lit_t*) arg_lit0("l", NULL, "creates a listener to print the messages received");
arg_file_t *proto = (arg_file_t*) arg_filen("p", "protocol", "acronym", 0, 1, "specify the protocol being manipulated");
arg_file_t *source = (arg_file_t*) arg_filen("s", "source", "x.x.x.x", 0, 1, "specify the source IP");
arg_file_t *dest = (arg_file_t*) arg_filen("d", "dest", "x.x.x.x", 0, 1, "specify the destination IP");
arg_int_t *sport = (arg_int_t*) arg_intn(NULL, "srcport", "short", 0, 1, "specify the source port if applicable");
arg_int_t *dport = (arg_int_t*) arg_intn(NULL, "dstport", "short", 0, 1, "specify the destination port if applicable");
arg_str_t *mcontent = (arg_str_t*) arg_strn(NULL, NULL, "string", 0, 1, "message content as a string");
arg_end_t *end = (arg_end_t*) arg_end(20);
void *argtable[] = {help,myip,bounce_opt,listen_opt,proto,source,
dest,sport,dport,mcontent,end};
if(arg_nullcheck(argtable) != 0)
{
fprintf(stderr, "error: insufficient memory");
exitstatus = -1;
goto exit_prog;
}
/* parse and act */
int nerrors = arg_parse(argc,argv,argtable);
if(nerrors == 0)
{
char sourceipbuf[INET6_ADDRSTRLEN];
size_t contentlen = 0;
char message_content[MAX_MESSAGELEN + 1];
/* get glossary */
if(help->count)
{
arg_print_glossary(stdout, argtable, "%-25s %s\n");
}
/* get current IP address */
else if(myip->count)
{
if(getmyip(sourceipbuf) == 0)
{
printf("Your packets will have the source IP address %s\n", sourceipbuf);
}
else
{
fprintf(stderr, "error: could not get your IP address.\n");
exitstatus = -1;
goto exit_prog;
}
}
/* start bouncer */
else if(bounce_opt->count)
{
if(!proto->count)
{
fprintf(stderr, "error: expected <protocol> specified.\n");
exitstatus = -1;
goto exit_prog;
}
enum Protocol protocol = parse_protocol(proto->filename[0]);
if(protocol == proto_UDP)
{
if(!sport->count)
{
fprintf(stderr, "error: expected <srcport> specified.\n");
exitstatus = -1;
goto exit_prog;
}
printf("Starting bouncer for UDP packets on port %u...\n", sport->ival[0]);
/* start_udp_listener(sport->ival[0], bounce_udp_packet);*/
}
else
{
fprintf(stderr, "Bouncing for %s packets is not supported.\n", proto->filename[0]);
exitstatus = -1;
goto exit_prog;
}
}
/* start listener */
else if(listen_opt->count)
{
if(!proto->count)
{
fprintf(stderr, "error: expected <protocol> specified.\n");
exitstatus = -1;
goto exit_prog;
}
enum Protocol protocol = parse_protocol(proto->filename[0]);
if(protocol == proto_UDP)
{
if(!sport->count)
{
fprintf(stderr, "error: expected <srcport> specified.\n");
exitstatus = -1;
goto exit_prog;
}
printf("Starting listener for UDP packets on port %u...\n", sport->ival[0]);
char filter[FILTER_BUFLEN];
memset(filter, 0, FILTER_BUFLEN);
sprintf(filter, "udp dst port %i", sport->ival[0]);
start_listener(filter, print_udp_packet);
/* start_udp_listener(sport->ival[0], print_packet);*/
}
else
{
fprintf(stderr, "Listening for %s packets is not supported.\n", proto->filename[0]);
exitstatus = -1;
goto exit_prog;
}
}
/* send packet */
else
{
/* take into account stdin reading if necessary */
if(!mcontent->count)
{
contentlen = read(STDIN_FILENO, message_content, MAX_MESSAGELEN);
if(contentlen < 0)
{
fprintf(stderr, "error: could not read message from stdin.\n");
perror("read");
exitstatus = -1;
goto exit_prog;
}
message_content[contentlen] = '\0';
}
else
{
int tempstrlen = strlen(mcontent->sval[0]);
contentlen = tempstrlen > MAX_MESSAGELEN ? MAX_MESSAGELEN : tempstrlen;
memcpy(message_content, mcontent->sval[0], contentlen);
message_content[contentlen] = '\0';
}
if(!proto->count || !dest->count)
{
fprintf(stderr, "error: expected <protocol> and <dest> specified.\n");
exitstatus = -1;
goto exit_prog;
}
if(!source->count)
{
if(getmyip(sourceipbuf) != 0)
{
fprintf(stderr, "error: could not get your IP address.\n");
exitstatus = -1;
goto exit_prog;
}
}
else
{
strncpy(sourceipbuf, source->filename[0], INET6_ADDRSTRLEN);
}
enum Protocol protocol = parse_protocol(proto->filename[0]);
if(protocol == proto_ICMP)
{
time_t t;
if(time(&t) == -1)
{
fprintf(stderr, "error: could not get timestamp.\n");
exitstatus = -1;
goto exit_prog;
}
printf("Sending ICMP ping packet...\nSource -> %s\n"
"Destination -> %s\n"
"Message -> %i\n",
sourceipbuf,
dest->filename[0],
(int) t);
/* construct ICMP header */
int err;
int payloadsize = sizeof(icmpheader_t) + sizeof(time_t);
char ip_payload[payloadsize];
/* copy in timestamp */
/* we must do this first for the checksum calculation */
t = htonl(t);
memcpy(ip_payload + sizeof(icmpheader_t), &t, sizeof(time_t));
/* identifier is lower 16 bits,
sequence number is upper 16 bits */
uint32_t rest = htons(0x00);
rest <<= 16;
rest |= htons(0x7b);
if((err = fill_icmp_header((icmpheader_t*) ip_payload, 8, 0, rest, sizeof(time_t))) != 0)
{
fprintf(stderr, "error: could not fill icmp header, returned %i.\n", err);
exitstatus = -1;
goto exit_prog;
}
/* send the ip packet */
ipheader_t iph;
iph.ip_p = 1; /* ICMP */
inet_aton(sourceipbuf, (struct in_addr*) &iph.ip_src);
inet_aton(dest->filename[0], (struct in_addr*) &iph.ip_dst);
if((err = send_ip_packet(&iph, ip_payload, payloadsize)) != 0)
{
fprintf(stderr, "error: could not send ip packet, returned %i.\n", err);
exitstatus = -1;
goto exit_prog;
}
}
else if(protocol == proto_UDP)
{
/* get port info */
unsigned short srcport = sport->count ? (unsigned short) sport->ival[0] : 0;
if(!dport->count)
{
fprintf(stderr, "error: <dstport> specified.\n");
exitstatus = -1;
goto exit_prog;
}
unsigned short dstport = (unsigned short) dport->ival[0];
printf("Sending UDP packet...\nSource -> %s:%i\n"
"Destination -> %s:%i\n"
"Message Length -> %u bytes\n",
sourceipbuf, srcport,
dest->filename[0], dstport,
(unsigned int) contentlen);
/* construct UDP header */
int err;
int payloadsize = sizeof(udpheader_t) + contentlen;
char ip_payload[payloadsize];
if((err = fill_udp_header((udpheader_t*) ip_payload, srcport, dstport, contentlen)) != 0)
{
fprintf(stderr, "error: could not fill udp header, returned %i.\n", err);
exitstatus = -1;
goto exit_prog;
}
/* set up IP payload */
memcpy(ip_payload + sizeof(udpheader_t), message_content, contentlen);
/* send the ip packet */
ipheader_t iph;
iph.ip_p = 17; /* UDP */
inet_aton(sourceipbuf, (struct in_addr*) &iph.ip_src);
inet_aton(dest->filename[0], (struct in_addr*) &iph.ip_dst);
if((err = send_ip_packet(&iph, ip_payload, payloadsize)) != 0)
{
fprintf(stderr, "error: could not send ip packet, returned %i.\n", err);
exitstatus = -1;
goto exit_prog;
}
}
else if(protocol == proto_TCP)
{
printf("TCP currently not supported.\n");
}
else
{
fprintf(stderr, "error: protocol %s is not supported.\n", proto->filename[0]);
}
}
}
else
{
arg_print_errors(stdout, end, argv[0]);
exitstatus = -1;
goto exit_prog;
}
exit_prog:
arg_freetable(argtable, sizeof(argtable)/sizeof(argtable[0]));
exit(exitstatus);
}
int main(int argc, char **argv)
{
int xx, i;
#ifdef STOP_UAC
int nvpair[2];
#endif
char buf[520], s[25];
FILE *f;
#ifndef ENABLE_STRIP
struct rlimit cdlim;
#endif
/* Don't allow Eggdrop to run as root. */
if (((int) getuid() == 0) || ((int) geteuid() == 0))
fatal("ERROR: Eggdrop will not run as root!", 0);
#ifndef ENABLE_STRIP
cdlim.rlim_cur = RLIM_INFINITY;
cdlim.rlim_max = RLIM_INFINITY;
setrlimit(RLIMIT_CORE, &cdlim);
#endif
#include "patch.h"
/* Version info! */
egg_snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
egg_snprintf(version, sizeof version,
"Eggdrop v%s (C) 1997 Robey Pointer (C) 2005 Eggheads",
egg_version);
/* Now add on the patchlevel (for Tcl) */
sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
strcat(egg_version, egg_xtra);
#ifdef STOP_UAC
nvpair[0] = SSIN_UACPROC;
nvpair[1] = UAC_NOPRINT;
setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
#endif
/* Set up error / signal traps. */
setup_signal_traps();
/* Initialize a few variables before main loop. */
cache_miss = 0;
cache_hit = 0;
chanset = NULL;
now = time(NULL);
egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
lastmin = nowtm.tm_min;
/* Initialize random number generator. */
srandom((unsigned int) (now % (getpid() + getppid())));
init_mem();
init_language(1);
/* Process command line arguments. */
process_args(argc, argv);
printf("\n%s\n", version);
init_dcc_max();
init_userent();
logfile_init(0);
init_bots();
init_net();
init_modules();
if (backgrd)
bg_prepare_split();
init_tcl(argc, argv);
init_language(0);
help_init();
traffic_init();
logfile_init(1);
#ifdef STATIC
link_statics();
#endif
strncpyz(s, ctime(&now), sizeof s);
strcpy(&s[11], &s[20]);
putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
/* Read configuration data. */
readconfig();
/* Check for encryption module. */
if (!encrypt_pass) {
printf(MOD_NOCRYPT);
bg_send_quit(BG_ABORT);
exit(1);
}
putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.", botnetnick,
count_channels(), count_users(userlist));
if (!pid_file[0])
egg_snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
/* Check for pre-existing eggdrop! */
f = fopen(pid_file, "r");
if (f != NULL) {
fgets(s, 10, f);
xx = atoi(s);
kill(xx, SIGCHLD); /* Meaningless kill to determine if PID is used. */
if (errno != ESRCH) {
printf(EGG_RUNNING1, botnetnick);
printf(EGG_RUNNING2, pid_file);
bg_send_quit(BG_ABORT);
exit(1);
}
}
/* Move into background? */
if (backgrd) {
#ifndef CYGWIN_HACKS
bg_do_split();
}
else {
#endif
xx = getpid();
if (xx != 0) {
FILE *fp;
/* Write PID to file. */
unlink(pid_file);
fp = fopen(pid_file, "w");
if (fp != NULL) {
fprintf(fp, "%u\n", xx);
if (fflush(fp)) {
/* Let the bot live since this doesn't appear to be a botchk. */
printf("Cannot not write to '%s' (PID file).\n", pid_file);
fclose(fp);
unlink(pid_file);
}
else
fclose(fp);
}
else
printf("Cannot not write to '%s' (PID file).\n", pid_file);
#ifdef CYGWIN_HACKS
printf("Launched into the background (PID: %d)\n\n", xx);
#endif
}
}
use_stderr = 0; /* Stop writing to stderr now */
if (backgrd) {
/* Ok, try to disassociate from controlling terminal (finger cross) */
#if defined(HAVE_SETPGID) && !defined(CYGWIN_HACKS)
setpgid(0, 0);
#endif
/* Tcl wants the stdin, stdout and stderr file handles kept open. */
freopen("/dev/null", "r", stdin);
freopen("/dev/null", "w", stdout);
freopen("/dev/null", "w", stderr);
#ifdef CYGWIN_HACKS
FreeConsole();
#endif
}
/* Terminal emulating dcc chat */
if (!backgrd && term_z) {
int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
dcc[n].addr = iptolong(getmyip());
dcc[n].sock = STDOUT;
dcc[n].timeval = now;
dcc[n].u.chat->con_flags = conmask;
dcc[n].u.chat->strip_flags = STRIP_ALL;
dcc[n].status = STAT_ECHO;
strcpy(dcc[n].nick, "HQ");
strcpy(dcc[n].host, "llama@console");
/* HACK: Workaround not to pass literal "HQ" as a non-const arg */
dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
/* Make sure there's an innocuous HQ user if needed */
if (!dcc[n].user) {
userlist = adduser(userlist, dcc[n].nick, "none", "-", USER_PARTY);
dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
}
setsock(STDOUT, 0); /* Entry in net table */
dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
dcc_chatter(n);
}
then = now;
online_since = now;
autolink_cycle(NULL); /* Hurry and connect to tandem bots. */
add_help_reference("cmds1.help");
add_help_reference("cmds2.help");
add_help_reference("core.help");
/* Create hooks. */
add_hook(HOOK_SECONDLY, (Function) core_secondly);
add_hook(HOOK_MINUTELY, (Function) core_minutely);
add_hook(HOOK_HOURLY, (Function) core_hourly);
add_hook(HOOK_REHASH, (Function) event_rehash);
add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
add_hook(HOOK_USERFILE, (Function) event_save);
add_hook(HOOK_BACKUP, (Function) backupuserfile);
add_hook(HOOK_DAILY, (Function) event_logfile);
add_hook(HOOK_DAILY, (Function) traffic_reset);
add_hook(HOOK_LOADED, (Function) event_loaded);
call_hook(HOOK_LOADED);
debug0("main: entering loop");
while (1) {
int socket_cleanup = 0;
#ifdef USE_TCL_EVENTS
/* Process a single Tcl event. */
Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
#endif
now = time(NULL);
random();
/* Every second... */
if (now != then) {
call_hook(HOOK_SECONDLY);
then = now;
}
/* Only do this every so often. */
if (!socket_cleanup) {
socket_cleanup = 5;
/* Remove dead dcc entries. */
dcc_remove_lost();
/* Check for server or dcc activity. */
dequeue_sockets();
}
else {
socket_cleanup--;
}
/* Free unused structures. */
garbage_collect();
xx = sockgets(buf, &i);
if (xx >= 0) { /* Non-error */
int idx;
for (idx = 0; idx < dcc_total; idx++) {
if (dcc[idx].sock != xx)
continue;
if (dcc[idx].type && dcc[idx].type->activity) {
traffic_update_in(dcc[idx].type, (strlen(buf) + 1)); /* Traffic stats. */
dcc[idx].type->activity(idx, buf, i);
}
else {
putlog(LOG_MISC, "*", "!!! untrapped dcc activity: type %s, sock %d",
dcc[idx].type->name, dcc[idx].sock);
}
break;
}
}
else if (xx == -1) { /* EOF */
int idx;
if (i == STDOUT && !backgrd)
fatal("END OF FILE ON TERMINAL", 0);
for (idx = 0; idx < dcc_total; idx++) {
if (dcc[idx].sock != i)
continue;
if (dcc[idx].type && dcc[idx].type->eof) {
dcc[idx].type->eof(idx);
}
else {
putlog(LOG_MISC, "*",
"*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
killsock(i);
lostdcc(idx);
}
idx = dcc_total + 1;
}
if (idx == dcc_total) {
putlog(LOG_MISC, "*",
"(@) EOF socket %d, not a dcc socket, not anything.", i);
close(i);
killsock(i);
}
}
else if (xx == -2 && errno != EINTR) { /* select() error */
putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
for (i = 0; i < dcc_total; i++) {
if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno == EBADF)) {
putlog(LOG_MISC, "*",
"DCC socket %d (type %d, name '%s') expired -- pfft",
dcc[i].sock, dcc[i].type, dcc[i].nick);
killsock(dcc[i].sock);
lostdcc(i);
i--;
}
}
}
else if (xx == -3) {
call_hook(HOOK_IDLE);
socket_cleanup = 0; /* If we've been idle, cleanup & flush */
}
if (do_restart) {
if (do_restart == -2) {
rehash();
}
else {
int f = 1;
module_entry *p;
Function startfunc;
char name[256];
check_tcl_event("prerestart");
/* Unload as many modules as possible */
while (f) {
f = 0;
for (p = module_list; p != NULL; p = p->next) {
dependancy *d = dependancy_list;
int ok = 1;
while (ok && d) {
if (d->needed == p)
ok = 0;
d = d->next;
}
if (ok) {
strcpy(name, p->name);
if (module_unload(name, botnetnick) == NULL) {
f = 1;
break;
}
}
}
}
/* Make sure we don't have any modules left hanging around other than
* "eggdrop" and the two that are supposed to be.
*/
for (f = 0, p = module_list; p; p = p->next) {
if (strcmp(p->name, "eggdrop") && strcmp(p->name, "encryption") &&
strcmp(p->name, "uptime")) {
f++;
}
}
if (f != 0) {
putlog(LOG_MISC, "*", MOD_STAGNANT);
}
/* Flush log files to disk. */
flushlogs();
/* Clean up Tcl stuff. */
kill_tcl();
/* Initialize stuff again. */
init_tcl(argc, argv);
init_language(0);
help_init();
traffic_init();
logfile_init(1);
/* This resets our modules which we didn't unload (encryption and uptime). */
for (p = module_list; p; p = p->next) {
if (p->funcs) {
startfunc = p->funcs[MODCALL_START];
startfunc(NULL);
}
}
rehash();
restart_chons();
call_hook(HOOK_LOADED);
}
do_restart = 0;
}
}
}
int main(int arg_c, char **arg_v)
{
int i, xx;
char s[25];
FILE *f;
struct sigaction sv;
struct chanset_t *chan;
#ifdef DEBUG
struct rlimit cdlim;
#endif
#ifdef STOP_UAC
int nvpair[2];
#endif
/* Make sure it can write core, if you make debug. Else it's pretty
* useless (dw)
*
* Only allow unlimited size core files when compiled with DEBUG defined.
* This is not a good idea for normal builds -- in these cases, use the
* default system resource limits instead.
*/
#ifdef DEBUG
cdlim.rlim_cur = RLIM_INFINITY;
cdlim.rlim_max = RLIM_INFINITY;
setrlimit(RLIMIT_CORE, &cdlim);
#endif
#ifdef DEBUG_CONTEXT
/* Initialise context list */
for (i = 0; i < 16; i++)
Context;
#endif
/* Include patch.h header for patch("...") */
#include "patch.h"
argc = arg_c;
argv = arg_v;
/* Version info! */
egg_snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
egg_snprintf(version, sizeof version,
"Eggdrop v%s (C) 1997 Robey Pointer (C) 2011 Eggheads",
egg_version);
/* Now add on the patchlevel (for Tcl) */
sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
strcat(egg_version, egg_xtra);
/* For OSF/1 */
#ifdef STOP_UAC
/* Don't print "unaligned access fixup" warning to the user */
nvpair[0] = SSIN_UACPROC;
nvpair[1] = UAC_NOPRINT;
setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
#endif
/* Set up error traps: */
sv.sa_handler = got_bus;
sigemptyset(&sv.sa_mask);
#ifdef SA_RESETHAND
sv.sa_flags = SA_RESETHAND;
#else
sv.sa_flags = 0;
#endif
sigaction(SIGBUS, &sv, NULL);
sv.sa_handler = got_segv;
sigaction(SIGSEGV, &sv, NULL);
#ifdef SA_RESETHAND
sv.sa_flags = 0;
#endif
sv.sa_handler = got_fpe;
sigaction(SIGFPE, &sv, NULL);
sv.sa_handler = got_term;
sigaction(SIGTERM, &sv, NULL);
sv.sa_handler = got_hup;
sigaction(SIGHUP, &sv, NULL);
sv.sa_handler = got_quit;
sigaction(SIGQUIT, &sv, NULL);
sv.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &sv, NULL);
sv.sa_handler = got_ill;
sigaction(SIGILL, &sv, NULL);
sv.sa_handler = got_alarm;
sigaction(SIGALRM, &sv, NULL);
/* Initialize variables and stuff */
now = time(NULL);
chanset = NULL;
egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
lastmin = nowtm.tm_min;
srandom((unsigned int) (now % (getpid() + getppid())));
init_mem();
init_language(1);
if (argc > 1)
for (i = 1; i < argc; i++)
do_arg(argv[i]);
printf("\n%s\n", version);
#ifndef CYGWIN_HACKS
/* Don't allow eggdrop to run as root
* This check isn't useful under cygwin and has been
* reported to cause trouble in some situations.
*/
if (((int) getuid() == 0) || ((int) geteuid() == 0))
fatal("ERROR: Eggdrop will not run as root!", 0);
#endif
#ifndef REPLACE_NOTIFIER
init_threaddata(1);
#endif
init_userent();
init_misc();
init_bots();
init_modules();
if (backgrd)
bg_prepare_split();
init_tcl(argc, argv);
init_language(0);
#ifdef STATIC
link_statics();
#endif
strncpyz(s, ctime(&now), sizeof s);
strcpy(&s[11], &s[20]);
putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
chanprog();
if (!encrypt_pass) {
printf(MOD_NOCRYPT);
bg_send_quit(BG_ABORT);
exit(1);
}
i = 0;
for (chan = chanset; chan; chan = chan->next)
i++;
putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
botnetnick, i, count_users(userlist));
cache_miss = 0;
cache_hit = 0;
if (!pid_file[0])
egg_snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
/* Check for pre-existing eggdrop! */
f = fopen(pid_file, "r");
if (f != NULL) {
fgets(s, 10, f);
xx = atoi(s);
i = kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
* is used */
if (i == 0 || errno != ESRCH) {
printf(EGG_RUNNING1, botnetnick);
printf(EGG_RUNNING2, pid_file);
bg_send_quit(BG_ABORT);
exit(1);
}
}
/* Move into background? */
if (backgrd) {
bg_do_split();
} else { /* !backgrd */
xx = getpid();
if (xx != 0) {
FILE *fp;
/* Write pid to file */
unlink(pid_file);
fp = fopen(pid_file, "w");
if (fp != NULL) {
fprintf(fp, "%u\n", xx);
if (fflush(fp)) {
/* Let the bot live since this doesn't appear to be a botchk */
printf(EGG_NOWRITE, pid_file);
fclose(fp);
unlink(pid_file);
} else
fclose(fp);
} else
printf(EGG_NOWRITE, pid_file);
}
}
use_stderr = 0; /* Stop writing to stderr now */
if (backgrd) {
/* Ok, try to disassociate from controlling terminal (finger cross) */
#ifdef HAVE_SETPGID
setpgid(0, 0);
#endif
/* Tcl wants the stdin, stdout and stderr file handles kept open. */
freopen("/dev/null", "r", stdin);
freopen("/dev/null", "w", stdout);
freopen("/dev/null", "w", stderr);
#ifdef CYGWIN_HACKS
FreeConsole();
#endif
}
/* Terminal emulating dcc chat */
if (!backgrd && term_z) {
int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
dcc[n].addr = iptolong(getmyip());
dcc[n].sock = STDOUT;
dcc[n].timeval = now;
dcc[n].u.chat->con_flags = conmask;
dcc[n].u.chat->strip_flags = STRIP_ALL;
dcc[n].status = STAT_ECHO;
strcpy(dcc[n].nick, "HQ");
strcpy(dcc[n].host, "llama@console");
/* HACK: Workaround not to pass literal "HQ" as a non-const arg */
dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
/* Make sure there's an innocuous HQ user if needed */
if (!dcc[n].user) {
userlist = adduser(userlist, dcc[n].nick, "none", "-", USER_PARTY);
dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
}
setsock(STDOUT, 0); /* Entry in net table */
dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
dcc_chatter(n);
}
then = now;
online_since = now;
autolink_cycle(NULL); /* Hurry and connect to tandem bots */
add_help_reference("cmds1.help");
add_help_reference("cmds2.help");
add_help_reference("core.help");
add_hook(HOOK_SECONDLY, (Function) core_secondly);
add_hook(HOOK_MINUTELY, (Function) core_minutely);
add_hook(HOOK_HOURLY, (Function) core_hourly);
add_hook(HOOK_REHASH, (Function) event_rehash);
add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
add_hook(HOOK_USERFILE, (Function) event_save);
add_hook(HOOK_BACKUP, (Function) backup_userfile);
add_hook(HOOK_DAILY, (Function) event_logfile);
add_hook(HOOK_DAILY, (Function) event_resettraffic);
add_hook(HOOK_LOADED, (Function) event_loaded);
call_hook(HOOK_LOADED);
debug0("main: entering loop");
while (1) {
mainloop(1);
}
}
/* Create a new listening port (or destroy one)
*
* listen <port> bots/all/users [mask]
* listen <port> script <proc> [flag]
* listen <port> off
*/
static int tcl_listen(ClientData cd, Tcl_Interp *irp,
int argc, char *argv[])
{
int i, j, idx = -1, port, realport;
char s[11], msg[256];
struct portmap *pmap = NULL, *pold = NULL;
BADARGS(3, 5, " port type ?mask?/?proc ?flag??");
port = realport = atoi(argv[1]);
for (pmap = root; pmap; pold = pmap, pmap = pmap->next)
if (pmap->realport == port) {
port = pmap->mappedto;
break;
}
for (i = 0; i < dcc_total; i++)
if ((dcc[i].type == &DCC_TELNET) && (dcc[i].port == port))
idx = i;
if (!egg_strcasecmp(argv[2], "off")) {
if (pmap) {
if (pold)
pold->next = pmap->next;
else
root = pmap->next;
nfree(pmap);
}
/* Remove */
if (idx < 0) {
Tcl_AppendResult(irp, "no such listen port is open", NULL);
return TCL_ERROR;
}
killsock(dcc[idx].sock);
lostdcc(idx);
return TCL_OK;
}
if (idx < 0) {
/* Make new one */
if (dcc_total >= max_dcc) {
Tcl_AppendResult(irp, "No more DCC slots available.", NULL);
return TCL_ERROR;
}
/* Try to grab port */
j = port + 20;
i = -1;
while (port < j && i < 0) {
i = open_listen(&port);
if (i == -1)
port++;
else if (i == -2)
break;
}
if (i == -1) {
egg_snprintf(msg, sizeof msg, "Couldn't listen on port '%d' on the "
"given address. Please make sure 'my-ip' is set correctly, "
"or try a different port.", realport);
Tcl_AppendResult(irp, msg, NULL);
return TCL_ERROR;
} else if (i == -2) {
Tcl_AppendResult(irp, "Couldn't assign the requested IP. Please make "
"sure 'my-ip' is set properly.", NULL);
return TCL_ERROR;
}
idx = new_dcc(&DCC_TELNET, 0);
dcc[idx].addr = iptolong(getmyip());
dcc[idx].port = port;
dcc[idx].sock = i;
dcc[idx].timeval = now;
}
/* script? */
if (!strcmp(argv[2], "script")) {
strcpy(dcc[idx].nick, "(script)");
if (argc < 4) {
Tcl_AppendResult(irp, "a proc name must be specified for a script listen", NULL);
killsock(dcc[idx].sock);
lostdcc(idx);
return TCL_ERROR;
}
if (argc == 5) {
if (strcmp(argv[4], "pub")) {
Tcl_AppendResult(irp, "unknown flag: ", argv[4], ". allowed flags: pub",
NULL);
killsock(dcc[idx].sock);
lostdcc(idx);
return TCL_ERROR;
}
dcc[idx].status = LSTN_PUBLIC;
}
strncpyz(dcc[idx].host, argv[3], UHOSTMAX);
egg_snprintf(s, sizeof s, "%d", port);
Tcl_AppendResult(irp, s, NULL);
return TCL_OK;
}
/* bots/users/all */
if (!strcmp(argv[2], "bots"))
strcpy(dcc[idx].nick, "(bots)");
else if (!strcmp(argv[2], "users"))
strcpy(dcc[idx].nick, "(users)");
else if (!strcmp(argv[2], "all"))
strcpy(dcc[idx].nick, "(telnet)");
if (!dcc[idx].nick[0]) {
Tcl_AppendResult(irp, "invalid listen type: must be one of ",
"bots, users, all, off, script", NULL);
killsock(dcc[idx].sock);
dcc_total--;
return TCL_ERROR;
}
if (argc == 4)
strncpyz(dcc[idx].host, argv[3], UHOSTMAX);
else
strcpy(dcc[idx].host, "*");
egg_snprintf(s, sizeof s, "%d", port);
Tcl_AppendResult(irp, s, NULL);
if (!pmap) {
pmap = nmalloc(sizeof(struct portmap));
pmap->next = root;
root = pmap;
}
pmap->realport = realport;
pmap->mappedto = port;
putlog(LOG_MISC, "*", "Listening at telnet port %d (%s).", port, argv[2]);
return TCL_OK;
}
// Process menu input and call functions based on input
void process_menu_input()
{
char command[BUFF_SIZE];
char *buffer;
int index1, index2;
uint32_t cost;
// Get the command...
if (fgets(command, BUFF_SIZE, stdin) == NULL) die ("Input Error");
buffer = strtok(command, " \n\r\0");
if (strcmp(command, "help") == 0)
{
display_menu_help();
}
else if (strcmp(command, "update") == 0)
{
buffer = strtok(NULL, " \n");
if (buffer == NULL) die("update ERROR invalid input");
index1 = get_index_from_id(atoi(buffer));
buffer = strtok(NULL, " \n");
if (buffer == NULL) die("update ERROR invalid input\n");
index2 = get_index_from_id(atoi(buffer));
if (index1 < 0 || index2 < 0) printf("update ERROR invalid id\n");
else if ((my_server->index != index1 && connect_out[index1].in_use == 0) || connect_out[index2].in_use == 0)
printf("update ERROR ids must be active\n");
else
{
buffer = strtok(NULL, "\n");
if (strcmp(buffer, "inf") == 0) cost = INFINITY;
else cost = atoi(buffer);
if (cost < 0) printf("update ERROR invalid cost\n");
else
{
// Be sure to update the actual cost if it involves ourselves
if (index1 == my_server->index)
route[index2].cost = cost;
else if (index2 == my_server->index)
route[index1].cost = cost;
// Otherwise just update the "cost" distance in our topology
topology.server[index1].cost[index2] = cost;
printf("update SUCCESS\n");
update_route();
}
}
}
else if (strcmp(command, "disable") == 0)
{
buffer = strtok(NULL, "\n");
index1 = get_index_from_id(atoi(buffer));
if (index1 < 0) printf("disable ERROR invalid id\n");
else if (connect_out[index1].in_use == 0) printf("disable ERROR id not in use\n");
else
{
disable_connect(index1);
printf("disable SUCCESS\n");
}
}
else if (strcmp(command, "crash") == 0)
{
for (index1 = 0; index1 < MAX_SERVERS; ++index1)
disable_connect(index1);
connect_in.in_use = 0;
printf("crash SUCCESS\n");
}
else if (strcmp(command, "step") == 0)
{
if (connect_in.in_use == 0) printf("step ERROR server is crashed\n");
else
{
send_packet_to_neighbors();
printf("step SUCCESS\n");
}
}
else if (strcmp(command, "display") == 0)
{
display_route();
printf("display SUCCESS\n");
}
else if (strcmp(command, "packets") == 0)
{
printf("Packets received since last update: %d\npackets SUCCESS\n", packets_rcvd);
packets_rcvd = 0;
}
else if (strcmp(command, "myip") == 0)
{
printf("My IP: %s (real: %s)\nmyip SUCCESS\n", char4_to_str(my_server->ip), getmyip());
}
else if (strcmp(command, "myport") == 0)
{
printf("My Port #: %i\nmyport SUCCESS\n", my_server->port);
}
else if (strcmp(command, "cls") == 0)
{
clear_screen();
}
else if (strcmp(command, "exit") == 0) die ("\t\tGOODBYE :)");
else printf("Unrecognized command: type help for help\n");
fflush(NULL);
}
