msymt

env

• macOS Big Sur v11.4
• Python 3.8.2
• Poetry 1.1.7

setup

msymt

url: https://qiita.com/kimisyo/items/916f58ac6571815851ff

env

• pip 21.2.4
• python 3.8.2

pip3 install requests pdfminer.six 

msymt

# ==================== Emojis ====================
# 🎉  :tada: 初めてのコミット（Initial Commit）
# 🔖  :bookmark: バージョンタグ（Version Tag）
# ✨  :sparkles: 新機能（New Feature）
# 🐛  :bug: バグ修正（Bagfix）
# ♻️  :recycle: リファクタリング(Refactoring)
# 📚  :books: ドキュメント（Documentation）
# 🎨  :art: デザインUI/UX(Accessibility)

msymt

# ref: https://reverseengineering.stackexchange.com/questions/23469/way-to-get-basic-blocks-of-a-binary-using-ghidra
from ghidra.program.model.block import BasicBlockModel
from ghidra.util.task import TaskMonitor

bbm = BasicBlockModel(currentProgram)
blocks = bbm.getCodeBlocks(TaskMonitor.DUMMY)
block = blocks.next()
bbl_cnt = 0

while block:

msymt

#include<stdio.h>
#include<stdlib.h>
#include<jansson.h>


void jansson_pack_stdout_free(json_t *root) {
  char *out = json_dumps(root, JSON_ENCODE_ANY);
  printf("out:%s\r\n", out);
  free(root);
  free(out);

msymt

#include<stdio.h>

int main(void) {
  for(int i = 0; i < 8; i++) {
    for(int x = 0; x < 20; x++) {
      int d = x - 10;
      if (d <= 0) {
        d *= -1;
      }
      char c = ' ';

msymt

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

#define BUFFSIZE 512
#define err(mess) { fprintf(stderr,"Error: %s.\n", mess); exit(1); }

msymt

import subprocess
# $cat input > output
subprocess.run(['cat'], stdin=open("input", 'r'), stdout=open("output", 'a'))

msymt

using System;
using System.Runtime.InteropServices;

namespace PInvokeSamples
{
    public static class Program
    {
        [DllImport("libc.so.6")]
        private static extern int fork();
        [DllImport("libc.so.6")]

msymt

MappedMemory: C# to C

1. From console create file: dd if=/dev/zero of=/tmp/sharedfile bs=12288 count=1
2. The C# program
3. The C program

usage

mcs Sender.cs