This commit is contained in:
randomuser 2021-01-31 23:14:57 +00:00
parent aed8b15797
commit 0ac618d467
1 changed files with 162 additions and 0 deletions

162
main.c Normal file
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#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <unistd.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <string.h>
#include "messages.h"
#define CBSIZE 2048
const char *blocked[] = {
"MIF",
"attack",
"unexpectedEOF",
"jan3",
"c-69-255-237-187.hsd1.md.comcast.net"
};
const char *blockmsg = "Error 404: no";
const char *username = "guest_03384";
const char *channel = "#chaos";
const char *topic = "rule one: you are now a duck. ・゜゜・。。・゜゜\\_o< QUACK!";
const char *owner = "rndusr";
/*
* should contain
* const char *password = "your face";
* or the like.
*/
#include "secrets.h"
typedef struct cbuf {
char buf[CBSIZE];
int fd;
unsigned int rpos, wpos;
} cbuf_t;
int read_line(cbuf_t *cbuf, char *dst, unsigned int size)
{
unsigned int i = 0;
ssize_t n;
while (i < size) {
if (cbuf->rpos == cbuf->wpos) {
size_t wpos = cbuf->wpos % CBSIZE;
//if ((n = read(cbuf->fd, cbuf->buf + wpos, (CBSIZE - wpos))) < 0) {
if((n = recv(cbuf->fd, cbuf->buf + wpos, (CBSIZE - wpos), 0)) < 0) {
if (errno == EINTR)
continue;
return -1;
} else if (n == 0)
return 0;
cbuf->wpos += n;
}
dst[i++] = cbuf->buf[cbuf->rpos++ % CBSIZE];
if (dst[i - 1] == '\n')
break;
}
if(i == size) {
fprintf(stderr, "line too large: %d %d\n", i, size);
return -1;
}
dst[i] = 0;
return i;
}
int main()
{
cbuf_t *cbuf;
char buf[4096];
struct sockaddr_in saddr;
struct hostent *h;
const char host[] = "localhost";
const int port = 6667;
char *ip;
if(!(h = gethostbyname(host))) {
perror("gethostbyname");
return 2;
}
ip = inet_ntoa(*(struct in_addr*)h->h_addr);
cbuf = calloc(1, sizeof(*cbuf));
fprintf(stdout, "Connecting to ip: %s\n", ip);
if((cbuf->fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
perror("socket");
return 1;
}
memset(&saddr, 0, sizeof(saddr));
saddr.sin_family = AF_INET;
saddr.sin_port = htons(port);
inet_aton(ip, &saddr.sin_addr);
if(connect(cbuf->fd, (struct sockaddr*)&saddr, sizeof(saddr)) < 0) {
perror("connect");
return 1;
}
snprintf(buf, sizeof(buf), "USER %s 0 * :test\r\n", username, host);
write(cbuf->fd, buf, strlen(buf));
snprintf(buf, sizeof(buf), "NICK %s\r\n", username, host);
write(cbuf->fd, buf, strlen(buf));
while(read_line(cbuf, buf, sizeof(buf)) > 0) {
if(strstr(buf, "001") != NULL) {
printf("%s", buf);
break;
}
printf("%s", buf);
}
snprintf(buf, sizeof(buf), "JOIN %s\r\n", channel, host);
write(cbuf->fd, buf, strlen(buf));
snprintf(buf, sizeof(buf), "PRIVMSG NickServ :identify %s\r\n", password, host);
write(cbuf->fd, buf, strlen(buf));
while(read_line(cbuf, buf, sizeof(buf)) > 0) {
if(strstr(buf, "hello loser") != NULL) {
snprintf(buf, sizeof(buf), "PRIVMSG %s :you're a loser\r\n", channel, host);
write(cbuf->fd, buf, strlen(buf));
snprintf(buf, sizeof(buf), "NOTICE %s :you're a loser\r\n", channel, host);
write(cbuf->fd, buf, strlen(buf));
snprintf(buf, sizeof(buf), "PRIVMSG %s :someone called me loser :(\r\n", owner, host);
write(cbuf->fd, buf, strlen(buf));
}
if(strstr(buf, "PING") != NULL ) {
snprintf(buf, sizeof(buf), "PONG :club.tilde.chat\r\n", host);
write(cbuf->fd, buf, strlen(buf));
}
if(strstr(buf, "KICK") != NULL ) {
snprintf(buf, sizeof(buf), "JOIN %s\r\n", channel, host);
write(cbuf->fd, buf, strlen(buf));
}
if(strstr(buf, "JOIN") != NULL) {
for(int i = 0; i <= sizeof(blocked)/sizeof(blocked[0]); i++) {
if(strstr(buf, blocked[i]) != NULL) {
snprintf(buf, sizeof(buf), "KICK %s %s :%s\r\n", channel, blocked[i], blockmsg, host);
write(cbuf->fd, buf, strlen(buf));
}
}
}
if(strstr(buf, "ban") != NULL) {
snprintf(buf, sizeof(buf), "PRIVMSG ChanServ :unban %s %s\r\n", channel, username, host);
write(cbuf->fd, buf, strlen(buf));
snprintf(buf, sizeof(buf), "PRIVMSG ChanServ :owner %s %s\r\n", channel, username, host);
write(cbuf->fd, buf, strlen(buf));
snprintf(buf, sizeof(buf), "PRIVMSG ChanServ :invite %s %s\r\n", channel, username, host);
write(cbuf->fd, buf, strlen(buf));
snprintf(buf, sizeof(buf), "JOIN %s\r\n", channel, username, host);
write(cbuf->fd, buf, strlen(buf));
}
if(strstr(buf, "TOPIC") != NULL) {
sleep(1);
snprintf(buf, sizeof(buf), "TOPIC %s :%s\r\n", channel, topic);
write(cbuf->fd, buf, strlen(buf));
}
printf("%s", buf);
}
close(cbuf->fd);
free(cbuf);
return 0;
}