--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.hgignore	Mon Oct 10 12:28:01 2022 +0900
@@ -0,0 +1,2 @@
+.git
+a.out

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Dockerfile	Mon Oct 10 12:28:01 2022 +0900
@@ -0,0 +1,38 @@
+FROM ubuntu:20.04
+
+RUN apt-get update && apt-get upgrade -y
+RUN DEBIAN_FRONTEND=noninteractive \
+    apt-get install -y \
+        mercurial \
+        libmpc-dev \
+        libgmp-dev \
+        libmpfr-dev \
+        build-essential \
+        flex \
+        gdb \
+        lldb \
+        zsh \
+        cmake \
+        iproute2 \
+        iputils-ping \
+        tcpdump \
+        telnet \
+        traceroute \
+        netcat \
+        curl \
+        vim \
+        arping \
+        nmap \
+        ncat \
+        net-tools
+RUN hg clone http://www.cr.ie.u-ryukyu.ac.jp/hg/CbC/CbC_gcc/
+RUN mkdir -p /usr/local/cbc_gcc
+RUN cd /usr/local/cbc_gcc && \
+    sh /CbC_gcc/configure CFLAGS="-g3 -O0" --prefix=/usr/local/cbc_gcc \
+        --disable-nls --disable-bootstrap --enable-languages=c \
+        --enable-checking=tree,rtl,assert,types --disable-multilib && \
+    make -j16 && \
+    make install
+
+ENV PATH=/usr/local/cbc_gcc/bin:$PATH
+ENV CBC_COMPILER=/usr/local/cbc_gcc/bin/gcc

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Makefile	Mon Oct 10 12:28:01 2022 +0900
@@ -0,0 +1,20 @@
+.PHONY: run
+run:
+	-@podman stop cbc-ip
+	-@podman rm cbc-ip
+	podman run --cap-add=all --name cbc-ip \
+	   -v $(PWD):/cbc-ip \
+	   -dit \
+	   localhost/cbc-ip
+
+.PHONY: exec
+exec:
+	podman exec -it cbc-ip bash
+
+.PHONY: build
+build:
+	podman build --rm -t localhost/cbc-ip .
+
+.PHONY: sync
+sync:
+	rsync -avP $(PWD)/src ie-user@10.0.4.74:~/cbc-ip
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main.cbc	Mon Oct 10 12:28:01 2022 +0900
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <linux/if_ether.h>
+#include <stdint.h>
+
+__code raw_socket(int socket, uint8_t *buffer, int len){
+    ssize_t n = recv(socket, buffer, len, 0);
+
+    if(n == -1){
+        perror("Failed to receive");
+        exit(1);
+    }
+    if(n != 0){
+        printf("Received %lu bytes: ", n);
+        for(int i = 0; i < n; ++i){
+            printf("%02x", buffer[i]);
+        }
+        printf("\n");
+    }
+
+    goto raw_socket(socket, buffer, len);
+}
+
+
+__code raw_socket_init(){
+    int sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
+    if(sock == -1){
+        perror("Failed to open socket");
+        exit(1);
+    }
+    uint8_t buf[1550];
+
+    goto raw_socket(sock, buf, sizeof(buf));
+}
+
+int main(){
+  goto raw_socket_init();
+}
\ No newline at end of file