{"url":"https://ken-ohwada.hatenadiary.org/entry/2021/01/03/120707","image_url":null,"title":"C\u8a00\u8a9e\u306b\u3066 \u5b9f\u884c\u4e2d\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u3092\u53d6\u5f97\u3059\u308b","provider_url":"https://hatena.blog","version":"1.0","published":"2021-01-03 12:07:07","author_name":"ken_ohwada","width":"100%","provider_name":"Hatena Blog","height":"190","blog_title":"ken ohwada \u96d1\u8a18\u5e33","categories":[],"type":"rich","blog_url":"https://ken-ohwada.hatenadiary.org/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fken-ohwada.hatenadiary.org%2Fentry%2F2021%2F01%2F03%2F120707\" title=\"C\u8a00\u8a9e\u306b\u3066 \u5b9f\u884c\u4e2d\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u3092\u53d6\u5f97\u3059\u308b - ken ohwada \u96d1\u8a18\u5e33\" 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/ken_ohwada/","description":"Linux Linux \u3067\u306f\u3001 \u5b9f\u884c\u4e2d\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30b7\u30f3\u30dc\u30ea\u30c3\u30af\u30ea\u30f3\u30af\u304c\u3001 /proc/pid/exe \u306b\u3042\u308b\u3002 \u3053\u308c\u3092 readlink \u3067\u8aad\u3080\u3068\u3001\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u304c\u5f97\u3089\u308c\u308b char path[PATH_MAX + 1]; const size_t LINKSIZE = 100; char link[LINKSIZE]; // \u5b9f\u884c\u4e2d\u306e\u30d7\u30ed\u30bb\u30b9\u306e\u30b7\u30f3\u30dc\u30ea\u30c3\u30af\u30ea\u30f3\u30af snprintf(link, LINKSIZE, \"/proc/%d/exe\", getpid() ); // \u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u304c\u5f97\u308b readlink( link, path, PATH_MAX); \u53c2\u8003 : C/C++ - exec\u2026"}