proto 1

main.c

@@ -0,0 +1,162 @@
+#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;
+}