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Tomoatsu Shimada shimarin

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shimarin / check_certs.py
Created April 1, 2024 11:47
#!/usr/bin/python
import MySQLdb
import ssl
import socket
from datetime import datetime
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
# MySQLデータベース接続設定
@shimarin
shimarin / memfd_create.cpp
Created July 27, 2022 23:02
#include <sys/mman.h>
#include <unistd.h>
#include <iostream>
int main()
{
auto fd = memfd_create("mytmpfile", 0);
if (fd < 0) throw std::runtime_error("memfd_create");
std::string tmp_filename = "/proc/" + std::to_string(getpid()) + "/fd/" + std::to_string(fd);
@shimarin
shimarin / trim.sh
Created May 11, 2022 09:49
ffmpeg -ss 00:00:44 -i testa.mkv -to 00:01:30 -vf "scale=1920:-2" -vcodec libx264 testa.mp4
@shimarin
shimarin / mqtt-relay.cpp
Last active April 29, 2022 23:56
#include <cstring>
#include <string>
#include <stdio.h>
#include "sdkconfig.h"
#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"
#include "driver/gpio.h"
#include "esp_wifi.h"
#include "esp_log.h"
@shimarin
shimarin / lwip_support_ipv6_scopes.patch
Created April 29, 2022 14:23
diff --git a/src/core/ipv6/ip6_addr.c b/src/core/ipv6/ip6_addr.c
old mode 100644
new mode 100755
index 687c02f7..ad649761
--- a/src/core/ipv6/ip6_addr.c
+++ b/src/core/ipv6/ip6_addr.c
@@ -41,6 +41,7 @@
*/
#include "lwip/opt.h"
@shimarin
shimarin / esp8266-mqtt-ipv6.patch
Last active April 11, 2022 12:04
diff --git a/components/tcp_transport/transport_tcp.c b/components/tcp_transport/transport_tcp.c
index 5bfb99dd..cdae5bf0 100644
--- a/components/tcp_transport/transport_tcp.c
+++ b/components/tcp_transport/transport_tcp.c
@@ -32,60 +32,51 @@ typedef struct {
int sock;
} transport_tcp_t;
-static int resolve_dns(const char *host, struct sockaddr_in *ip) {
-
@shimarin
shimarin / trade.html
Last active February 26, 2022 07:58
<html>
<head>
<title>信用取引計算くん</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.8.0/font/bootstrap-icons.css">
</head>
<body>
<div id="page-content" class="card">
<h1 class="card-header"><i class="bi bi-calculator"></i>信用取引計算くん</h1>
@shimarin
shimarin / Makefile.vscode
Last active February 22, 2021 21:34
VS Codeで、複数のC++ソースファイルが置いてあるフォルダで編集中ファイルの実行をできるようにするための tasks.jsonと外部 Makefile
rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) $(filter $(subst *,%,$2),$d))
OBJS=$(subst .cpp,.o,$(call rwildcard,,*.cpp))
BINS=$(subst .cpp,,$(call rwildcard,,*.cpp))
HEADERS=$(call rwildcard,,*.h)
CXXFLAGS ?= -std=c++2a
all: $(BINS)
libproj.a: $(OBJS)
@shimarin
shimarin / dupremover.py
Last active February 21, 2021 05:40
重複ファイル削除ツール
#!/usr/bin/python3
import os,argparse,glob
import xxhash
def calc_hash_from_file_handle(f):
h = xxhash.xxh64()
bufsize = h.block_size * 0x800
data = f.read(bufsize)
while data:
h.update(data)
@shimarin
shimarin / ping6test.cpp
Last active February 11, 2021 23:45
/**
* ICMPv6 echo request (ping6) test
*/
#include <unistd.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/icmp6.h>