{"version":"1.0","description":"\u3044\u307ePHP\u3067TCP\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u5b9f\u88c5\u4e2d\u3067\u3059\u3002TCP\u306f\u30ec\u30a4\u30e4\u30fc\u3068\u3057\u30664\u5c64\u3067\u305d\u306e\u4e0b\u306e3\u5c64\u306bIP\u304c\u3042\u308a\u307e\u3059\u3002 PHP\u3067\u81ea\u4f5cTCP\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u308a\u305f\u3044\u6642\u306fC\u8a00\u8a9e\u3067\u5b9f\u88c5\u3059\u308b\u306e\u3068\u540c\u3058\u3088\u3046\u306b socket_create()\u95a2\u6570\u306e\u5f15\u6570\u306b\u3001 AF_INET\u3068SOCK_RAW\u3092\u6307\u5b9a\u3059\u308b\u3068\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002 SOCK_RAW\u3092\u4f7f\u3063\u3066\u3001sendto()\u95a2\u6570\u306b\u81ea\u4f5cTCP\u30d1\u30b1\u30c3\u30c8\u3092\u6d41\u3057\u8fbc\u3081\u3070\u826f\u304f\u3001IP\u30d1\u30b1\u30c3\u30c8\u306fOS\u304c\u52dd\u624b\u306b\u4f5c\u3063\u3066\u304f\u308c\u307e\u3059\u3002 \u3067\u306f\u3001IP\u30d1\u30b1\u30c3\u30c8\u307e\u3067\u81ea\u4f5c\u3057\u305f\u3044\u5834\u5408\u306f\u3069\u3046\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f \u7d50\u8ad6 $socket = socket_create(AF_INET, SOCK_RAW, SOL_TCP);$IP_HDRINC\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.ichikaway.com%2Fentry%2F2024%2F10%2F13%2Fphp-ip\" title=\"PHP\u3067\u81ea\u4f5cIP\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u53d7\u4fe1\u3057\u305f\u3044\u5834\u5408 - Code Day&#39;s Night\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"PHP\u3067\u81ea\u4f5cIP\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u53d7\u4fe1\u3057\u305f\u3044\u5834\u5408","type":"rich","author_name":"ichikaway","provider_name":"Hatena Blog","blog_url":"https://blog.ichikaway.com/","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/i/ichikaway/20241013/20241013111503.png","author_url":"https://blog.hatena.ne.jp/ichikaway/","provider_url":"https://hatena.blog","blog_title":"Code Day's Night","width":"100%","url":"https://blog.ichikaway.com/entry/2024/10/13/php-ip","height":"190","categories":[],"published":"2024-10-13 11:27:34"}