{"categories":[],"description":"TL\u3092\u898b\u3066\u3044\u305f\u3089\u4e0d\u601d\u8b70\u306a\u30b3\u30fc\u30c9\u304c\u3042\u308a\u307e\u3057\u305f\u3002 #include <stdlib.h> #include <unistd.h> int main() { system(\"pkill a.out; sleep 10; ./a.out\"); }\u3044\u308d\u3044\u308d\u5fd8\u308c\u3066\u3066\u300c\uff1f\uff1f\uff1f\u300d\u3060\u3063\u305f\u306e\u3067\u30e1\u30e2 system()\u306f\u5185\u90e8\u3067sh\u3092fork()\u2192execve()\u3059\u308b\u3060\u3051\u3002 \u305d\u306e\u969b\u306bsystem()\u306f\u81ea\u8eab\u306e\u5f15\u6570\u3092-c\u30aa\u30d7\u30b7\u30e7\u30f3\u3067sh\u306b\u6e21\u3059\u306e\u3067\"sh -c pkill a.out; sleep 10; ./a.out\"\u3068\u540c\u3058\u6319\u52d5\u3092\u3055\u305b\u308b pkill\u30b3\u30de\u30f3\u30c9\u3067a.out\u3092\u6bba\u3057\u305f\u3068\u304d\u306b\u306f, execve()\u3067\u8d77\u52d5\u3057\u305fsh\u30d7\u30ed\u2026","blog_title":"#define NO_MONEY 0","author_name":"kayn_koen","url":"https://kayn-koen.hatenadiary.org/entry/20101021/1287682817","title":"system()","type":"rich","provider_url":"https://hatena.blog","blog_url":"https://kayn-koen.hatenadiary.org/","published":"2010-10-21 02:40:17","version":"1.0","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkayn-koen.hatenadiary.org%2Fentry%2F20101021%2F1287682817\" title=\"system() - #define NO_MONEY 0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/kayn_koen/","provider_name":"Hatena Blog","image_url":null,"width":"100%"}