{"id":4094,"date":"2014-04-20T14:04:20","date_gmt":"2014-04-20T05:04:20","guid":{"rendered":"http:\/\/www.vincentina.net\/?p=4094"},"modified":"2021-12-23T22:03:16","modified_gmt":"2021-12-23T13:03:16","slug":"c%e3%81%a7%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e7%9b%a3%e8%a6%96%e3%81%ae%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%a0%e3%82%92%e4%bd%9c%e3%81%a3%e3%81%a6%e3%81%bf%e3%82%88%e3%81%86%e3%80%80-3","status":"publish","type":"post","link":"https:\/\/www.vincentina.net\/?p=4094","title":{"rendered":"C\u3067\u30b5\u30fc\u30d0\u30fc\u76e3\u8996\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u307f\u3088\u3046\u3000\u305d\u306e3"},"content":{"rendered":"<h2>\u3064\u3044\u306bDaemon\u5316\u3060\u3051\u3069\u3001\u610f\u5916\u306a\u4e8b\u5b9f\u304c\u5f85\u3063\u3066\u3044\u305f<\/h2>\n<p>\u524d\u3005\u56de\u304f\u3089\u3044\u306e\u300c<a title=\"\u305f\u3089\u3053\u9c48\u306e\u5b50\u3001\u3053\u306e\u5b50\u3069\u3053\u306e\u5b50\" href=\"http:\/\/www.vincentina.net\/?p=4073\" target=\"_blank\" rel=\"noopener noreferrer\">\u305f\u3089\u3053\u9c48\u306e\u5b50<\/a>\u300d\u306e\u56de\u3067\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u304c\u306a\u304f\u306a\u3063\u305f\u6642\u306b\u5b50\u30d7\u30ed\u30bb\u30b9\u304cinit\u306e\u5b50\u306b\u306a\u308b\u73fe\u8c61\u304c\u3042\u3063\u3066\u3001\u305d\u308c\u3067init\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u4f5c\u308c\u308b\u3093\u304b\u306a\uff1f\u3044\u3084\u3041\u3001<span style=\"font-size: 18pt;\">\u305d\u3093\u306a\u307e\u3055\u304b\u306a\u3041<\/span>\u3068\u601d\u3063\u3066\u305f\u3093\u3060\u3051\u3069\u3001<span style=\"font-size: 12pt;\">\u305d\u308c\u307b\u3069\u9060\u304f\u3082\u306a\u304b\u3063\u305f<\/span>\u306e\u3060\u3063\u305f\u306e\u3060\u3063\u305f\u3002<\/p>\n<p>Daemon\u5316\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u8aac\u660e\u3092\u898b\u3066\u307f\u308b\u3068\u3053\u3046\u66f8\u304b\u308c\u3066\u3044\u305f\u3002<\/p>\n<p>1\uff0efork\u3057\u3066\u89aa\u30d7\u30ed\u30bb\u30b9\u3092\u7d42\u4e86\u3001\u81ea\u52d5\u7684\u306binit\u306e\u5b50\u3068\u306a\u308b\u3002<\/p>\n<p>2\uff0esetsid()\u3067\u5236\u5fa1\u7aef\u672b\u3092\u5207\u308a\u96e2\u3059\u3002<\/p>\n<p>3\uff0e\u30ab\u30ec\u30f3\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\/\u3000\u30eb\u30fc\u30c8\u3078\u3002<\/p>\n<p>4\uff0e\u6a19\u6e96\u5165\u51fa\u529b\u3001\u30a8\u30e9\u30fc\u51fa\u529b\u3092null\u3001\u53b3\u5bc6\u306b\u306fclose\u3059\u308b\u3002<\/p>\n<p>\u3068\u3044\u3046\u4e8b\u3089\u3057\u3044\u3002<\/p>\n<p><span style=\"font-size: 14pt;\">\u5148\u5165\u89b3<\/span>\u3068\u3044\u3046\u306e\u306f\u307b\u3093\u3068\u306b\u611f\u899a\u3092\u72c2\u308f\u305b\u308b\u3068\u3044\u3046\u304b\u3001Daemon\u306b\u5bfe\u3057\u3066\u3053\u3093\u306a\u7c21\u5358\u306b\u3067\u304d\u308b\u306e\u304b\u3068\u3044\u3046\u8a8d\u8b58\u304c\u306a\u304b\u3063\u305f\u306e\u3067\u3073\u3063\u304f\u308a\u3057\u305f\u3002\u305d\u3093\u306a\u30ad\u30e7\u30f3\u30b7\u30fc\u307f\u305f\u3044\u306a\u3084\u308a\u65b9\u3067\u3044\u3044\u306e\u304b\u3002<\/p>\n<p>\u3068\u306f\u3044\u3046\u3082\u306e\u306e<span style=\"font-size: 12pt;\">\u7b2c\u4e00\u5370\u8c61<\/span>\u3068\u3044\u3046\u306e\u306f\u5927\u4e8b\u3060\u3057\u306a\u3041\u30fb\u30fb\u4f55\u306e\u8a71\u3060\u3002<\/p>\n<p>\u305d\u308c\u306b\u30ad\u30e7\u30f3\u30b7\u30fc\u3068\u304b\u6700\u8fd1\u306e\u4eba\u306f<span style=\"font-size: 14pt;\">\u77e5\u3089\u306a\u3044\u3060\u308d\u3046\uff01<\/span><\/p>\n<p>\u307e\u3041\u305d\u308c\u306f\u7f6e\u3044\u3068\u3044\u3066\u3001Linux\u306b\u306fDaemon(3)\u3068\u3044\u3046\u95a2\u6570\u304c\u3042\u3063\u3066\u306a\u3093\u3068\u3082\u7c21\u5358\u306b\u3067\u304d\u308b\u3089\u3057\u3044\u3067\u3059\u3002<\/p>\n<p>\u3067\u306f\u5b9f\u969b\u306b\u3084\u3063\u3066\u307f\u3088\u3046\u3002<\/p>\n<p>\u305d\u30fc\u3059\u3000\u30fb\u30fb\u3060\u3093\u3060\u3093\u307e\u305c\u307e\u305c\u30bd\u30fc\u30b9\u306b\u306a\u3063\u3066\u304d\u305f\u3002<\/p>\n<pre>#include &lt;stdio.h&gt;\r\n#include &lt;string.h&gt;\r\n#include &lt;apr_hash.h&gt;\r\n#include &lt;sys\/types.h&gt;\r\n#include &lt;sys\/stat.h&gt; \/\/daemon\u5316\u3067\u8ffd\u52a0\r\n#include &lt;stdlib.h&gt; \/\/EXIT_FAILURE\u306a\u3069\u3067\u8ffd\u52a0\r\n#include &lt;unistd.h&gt;\r\n#include &lt;sys\/wait.h&gt;\r\n\r\n#define Max_Children 3 \/* \u5b50\u30d7\u30ed\u30bb\u30b9\u306e\u6700\u5927\u6570 *\/\r\n#define PID_FILE \"\/var\/run\/pre_daemon.pid\"\r\n\r\nvoid write_pid();\r\nvoid daemonize();\r\n\r\n\/* INCLUDE: apr_hash.h\r\n\u00a0* apr_hash_make \/ apr_hash_set \/ apr_hash_get \/\r\n\u00a0* apr_hash_count \/ apr_hash_first \/ apr_hash_next \/\r\n\u00a0* apr_hash_this *\/\r\n\r\n\/* \u30cf\u30c3\u30b7\u30e5\u30c6\u30fc\u30d6\u30eb\u306e\u4f8b\r\n\u00a0* HASHTABLE: apr_hash_make \/ apr_hash_set \/ apr_hash_get \/\r\n\u00a0* apr_hash_count \/ apr_hash_first \/ apr_hash_next \/ apr_hash_this *\/\r\n\r\nstatic apr_pool_t *pool = NULL;\r\nstatic apr_hash_t *hash = NULL;\r\n\r\nint main(void)\r\n{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/kill \u3057\u3084\u3059\u3044\u3088\u3046\u306b pid \u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 write_pid();\r\n\r\n\u00a0\u00a0\u00a0 \/\/apr\u3092\u521d\u671f\u5316\r\n\u00a0\u00a0\u00a0 apr_initialize();\r\n\r\n\u00a0\u00a0\u00a0 \/\/\u30e1\u30e2\u30ea\u30d7\u30fc\u30eb\u3092\u4f5c\u6210\r\n\u00a0\u00a0\u00a0 apr_pool_create(&amp;pool, NULL);\r\n\r\n\u00a0\u00a0\u00a0 \/\/\u30cf\u30c3\u30b7\u30e5\u3092\u4f5c\u6210\u3059\u308b\u3002\r\n\u00a0\u00a0\u00a0 hash = apr_hash_make(pool);\r\n\r\n\u00a0 \/\/Daemon\u95a2\u6570\u00a0 \r\n\u00a0 if(daemon(0, 0) == 0){\r\n\r\n\u3000\u3000\/\/\u89aa\u30d7\u30ed\u30bb\u30b9\r\n\u00a0\u00a0\u00a0 while(1){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 while(apr_hash_count(hash) &gt;= Max_Children){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int status;\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pid_t child_pid = wait(&amp;status); \/\/\u5b50\u30d7\u30ed\u30bb\u30b9\u306e\u7d42\u4e86\u3092\u5f85\u3064\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 apr_hash_set(hash, &amp;child_pid, sizeof(child_pid), NULL);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/\u306a\u304f\u306a\u3063\u305f\u5b50\u30d7\u30ed\u30bb\u30b9\u306f\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u524a\u9664\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pid_t *pid = apr_palloc(pool, sizeof(pid_t));\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/* \u30a8\u30e9\u30fc\u5fa9\u5e30\u6642\u306a\u3069\u306b\u30e1\u30e2\u30ea\u3092\u89e3\u653e\u3057\u5fd8\u308c\u305f\u5834\u5408\u306b\u3082\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * apache\u304c\u30d7\u30fc\u30eb(apr_pool_t\u306b\u3088\u3063\u3066\u7ba1\u7406\u3055\u308c\u3066\u3044\u308b)\u89e3\u653e\u6642\u306b\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u81ea\u52d5\u7684\u306b\u89e3\u653e\u3092\u884c\u3063\u3066\u304f\u308c\u308b\u305f\u3081\u3001\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u308b\u3002\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u3089\u3057\u3044 *\/\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *pid = fork();\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(*pid==0){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 while(1){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 system(\"bash kill.sh\");\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 sleep(1);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 apr_hash_set(hash, pid, sizeof(pid_t), 1); \/\/\u5b50\u30d7\u30ed\u30bb\u30b9\u3092\u30cf\u30c3\u30b7\u30e5\u30c6\u30fc\u30d6\u30eb\u306b\u8ffd\u52a0\u3059\u308b\u3002\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 usleep(100);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }else{\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/Daemon\u5316\u5931\u6557\u306e\u5834\u5408\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf(\"error\\n\");\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return 0;\r\n}\r\n\r\nvoid write_pid(){\r\n\u00a0 FILE *fp;\r\n\u00a0 fp = fopen(PID_FILE, \"w\");\r\n\u00a0 fprintf(fp, \"%d\", getpid());\r\n\u00a0 fclose(fp);\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\u30fb\u30fb\u30fb\u3068\u3044\u304d\u305f\u3044\u306e\u3060\u3051\u3069\u3001\u3053\u308c\u3067\u306f\u52d5\u304b\u306a\u304b\u3063\u305f\u3002<\/p>\n<p>\u3044\u3084\u3001\u52d5\u3044\u3066\u3044\u308b\u3093\u3060\u3051\u3069\uff08\u2193\u3092\u53c2\u7167\uff09\u3001<span style=\"font-size: 14pt;\">\u671f\u5f85\u3059\u308b\u52d5\u4f5c\u3092\u3057\u306a\u304b\u3063\u305f<\/span>\u306e\u306d\u3002<\/p>\n<pre>root\u00a0\u00a0\u00a0\u00a0 60963\u00a0\u00a0\u00a0\u00a0 1\u00a0 0 20:55 ?\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 00:00:00 .\/pre_sig_2\r\nroot\u00a0\u00a0\u00a0\u00a0 60964 60963\u00a0 0 20:55 ?\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 00:00:00 .\/pre_sig_2\r\nroot\u00a0\u00a0\u00a0\u00a0 60966 60963\u00a0 0 20:55 ?\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 00:00:00 .\/pre_sig_2\r\nroot\u00a0\u00a0\u00a0\u00a0 60967 60963\u00a0 0 20:55 ?\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 00:00:00 .\/pre_sig_2<\/pre>\n<p>Demon\u5316\u3057\u306a\u3044\u5834\u5408\u306f\u3061\u3083\u3093\u3068\u52d5\u304f\u3001\u3069\u3053\u304c\u554f\u984c\u306a\u3093\u3060\u308d\u3046\u304b\u3068\u7d50\u69cb\u60a9\u3093\u3060\u3002<\/p>\n<pre>[root@localhost program]# .\/pre_sig_1\r\nLoad average 2\r\n76\r\nLoad average 2\r\n76\r\nLoad average 2\r\n76\r\nkill.sh: line 16: kill: (3243) - \u305d\u306e\u3088\u3046\u306a\u30d7\u30ed\u30bb\u30b9\u306f\u3042\u308a\u307e\u305b\u3093\r\nkill.sh: line 16: kill: (3243) - \u305d\u306e\u3088\u3046\u306a\u30d7\u30ed\u30bb\u30b9\u306f\u3042\u308a\u307e\u305b\u3093\r\nLoad average 2\r\n50\r\nLoad average 2\r\n50\r\nLoad average 2\r\n50\r\nkill.sh: line 16: kill: (4380) - \u305d\u306e\u3088\u3046\u306a\u30d7\u30ed\u30bb\u30b9\u306f\u3042\u308a\u307e\u305b\u3093\r\nLoad average 2<\/pre>\n<p>\u539f\u56e0\u306f\u3044\u308d\u3044\u308d\u3042\u3063\u3066\u6587\u7ae0\u3067\u3082\u66f8\u3051\u305d\u3046\u306a\u3093\u3060\u3051\u3069\u3001\u8a66\u884c\u932f\u8aa4\u306e\u9593\u306b\u3044\u308d\u3093\u306a\u3053\u3068\u3092\u8a66\u3057\u3066\u3044\u3066\u3001\u305d\u308c\u3092\u898b\u305f\u65b9\u304c\u30d6\u30ed\u30b0\u7684\u306b\u3082\u9762\u767d\u3044\u3068\u601d\u3046\u3093\u3067\u305d\u3063\u3061\u3092\u63b2\u8f09\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u3068\u308a\u3042\u3048\u305a\u8981\u3089\u306a\u3044\u90e8\u54c1\u3092\u5916\u3057\u3066\u6700\u5c0f\u9650\u3067\u3046\u3054\u304b\u305b\u30fc\uff01<\/h2>\n<p><span style=\"font-size: 14pt;\">\u81ea\u4f5cPC\u304b<\/span>\u3063\u3066\u3044\u3046\u5207\u308a\u5206\u3051\u306e\u4ed5\u65b9\u3060\u3051\u3069\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3082\u540c\u3058\u306a\u306f\u305a\u3060\u3002<\/p>\n<p>\u305d\u30fc\u3059<\/p>\n<pre>#include &lt;stdio.h&gt;\r\n#include &lt;sys\/stat.h&gt; \/\/daemon\u5316\u3067\u8ffd\u52a0\r\n#include &lt;stdlib.h&gt; \/\/EXIT_FAILURE\u306a\u3069\u3067\u8ffd\u52a0\r\n\r\nint main(void)\r\n{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(daemon(0, 0) == 0){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 while(1) printf(\"Hello Daemon\\n\");\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }else{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf(\"error\\n\");\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return 0;\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n<p>\u898b\u304b\u3051\u4e0a\u306f\u306a\u3093\u3082\u5909\u5316\u3057\u307e\u305b\u3093\uff01\uff01\uff08\u5b9f\u969b\u306b\u306f\u52d5\u3044\u3066\u308b\uff09<\/p>\n<p>\u3067\u3082\u3001\u307c\u3093\u3084\u308a\u3068\u306f\u5206\u304b\u3063\u3066\u305f\u3082\u306e\u306e\u5b9f\u9a13\u4e2d\u306f\u307e\u3060\u307e\u3060\u7406\u7531\u306b\u6c17\u3065\u304b\u305a\u3067\u3057\u305f\u3002<br \/>\n\u3064\u3065\u3044\u3066Python\u306e1\u884c\u7c21\u6613\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u3092\u52d5\u304b\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u30fc\u3059<\/p>\n<pre>#include &lt;stdio.h&gt;\r\n#include &lt;sys\/stat.h&gt; \/\/daemon\u5316\u3067\u8ffd\u52a0\r\n#include &lt;stdlib.h&gt; \/\/EXIT_FAILURE\u306a\u3069\u3067\u8ffd\u52a0\r\n\r\nint main(void)\r\n{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(daemon(0, 0) == 0){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 system(\"python -m SimpleHTTPServer\");\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }else{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 printf(\"error\\n\");\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return 0;\r\n}<\/pre>\n<p>\u3053\u308c\u306f\u3001Daemon\u3068\u3057\u3066\u7c21\u6613\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u3068\u3057\u3066\u52d5\u4f5c\u3057\u307e\u3057\u305f\u3002\u306a\u305c\uff1f\u3063\u3066\u3001\u3055\u3063\u304d\u306eprintf\u3082\u5b9f\u969b\u306b\u306f\u52d5\u3044\u3066\u3044\u308b\u3093\u3060\u3051\u3069\u898b\u3048\u3066\u3044\u306a\u3044\u3093\u3060\u3088\u3068\u3044\u3046\u4e8b\u306b\u306a\u308b\u3002<\/p>\n<p>\u3067\u306f\u7c21\u6613\u30b5\u30fc\u30d0\u30fc\u3092Daemon\u5316\u3067\u52d5\u304b\u3057\u3066\u307f\u308b\u3068\uff1f<\/p>\n<pre>[root@localhost program]# .\/a.out\r\n[root@localhost program]# netstat -tln\r\nActive Internet connections (only servers)\r\nProto Recv-Q Send-Q Local Address\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Foreign Address\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 State\r\ntcp\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 0 0.0.0.0:22\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.0.0.0:*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 LISTEN\r\ntcp\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 0 127.0.0.1:25\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.0.0.0:*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 LISTEN\r\ntcp\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 0 0.0.0.0:8000\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.0.0.0:*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 LISTEN\r\ntcp\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 0 :::22\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 :::*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 LISTEN\r\ntcp\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 0 ::1:25\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 :::*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 LISTEN<\/pre>\n<p><a href=\"http:\/\/www.vincentina.net\/wp-content\/uploads\/2014\/04\/web.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.vincentina.net\/wp-content\/uploads\/2014\/04\/web-300x288.jpg\" alt=\"web\" width=\"300\" height=\"288\" class=\"alignnone size-medium wp-image-4095\" srcset=\"https:\/\/www.vincentina.net\/wp-content\/uploads\/2014\/04\/web-300x288.jpg 300w, https:\/\/www.vincentina.net\/wp-content\/uploads\/2014\/04\/web-624x599.jpg 624w, https:\/\/www.vincentina.net\/wp-content\/uploads\/2014\/04\/web.jpg 630w\" sizes=\"auto, (max-width: 300px) 85vw, 300px\" \/><\/a><\/p>\n<p>\u3054\u89a7\u306e\u3088\u3046\u306b\/\u76f4\u4e0b\u304c\u8868\u793a\u3055\u308c\u308b\u3002\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u304c\u306a\u3044\u3068\u3053\u308d\u306b\u306f\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u3088\u3002<br \/>\n\u3061\u306a\u307f\u306ba.out\u3092KILL\u3059\u308b\u3068Python\u306e\u30d7\u30ed\u30bb\u30b9\u304cinit\u306e\u5b50\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u539f\u56e0\u304c\u306a\u3093\u3068\u306a\u304f\u308f\u304b\u3063\u305f\u306e\u3067\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4fee\u6b63\u3059\u308b\u3002<\/h2>\n<p>\u3053\u306e\u6642\u70b9\u3067\u3001\u5192\u982d\u3067\u8a71\u3057\u3066\u3044\u305f\u300c\u5236\u5fa1\u304c\u96e2\u308c\u308b\u300d\u300c\u5165\u51fa\u529b\u3084\u30a8\u30e9\u30fc\u51fa\u529b\u3060\u3063\u305f\u308a\u300d\u306e\u95a2\u4fc2\u3067\u3053\u3046\u306a\u3063\u3066\u3044\u308b\u306e\u304b\u306a\u3063\u3066\u306e\u306f\u4e88\u6e2c\u3067\u304d\u3066\u3044\u305f\u306e\u3067\u3001\u53c2\u8003\u30b5\u30a4\u30c8\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3001Daemonize\u95a2\u6570\u3092\u4f7f\u3046\u3053\u3068\u306b\u3057\u3066\u3044\u308d\u3044\u308d\u52d5\u304b\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<p>\u65e5\u8a18\u306b\u66f8\u3044\u3066\u3044\u308b\u306e\u306f\u307b\u3093\u306e\u308f\u305a\u304b\u306a\u90e8\u5206\u3067\u3059\u3002\u3082\u3061\u308d\u3093\u3053\u306e3\u5e74\u9593\u305a\u3063\u3068\u3067\u3059\u3002<\/p>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u304b\u3089<span style=\"font-size: 14pt;\">\u6a19\u6e96\u5165\u529b\u3060\u3051\u3092\u6b8b\u3057\u305f<\/span>\u5f62\u3067\u3001Daemonize\u3057\u3066\u307f\u305f\u3002<\/p>\n<p>\u305d\u30fc\u3059<\/p>\n<pre>#include &lt;stdio.h&gt;\r\n#include &lt;string.h&gt;\r\n#include &lt;apr_hash.h&gt;\r\n#include &lt;sys\/types.h&gt;\r\n#include &lt;sys\/stat.h&gt; \/\/daemon\u5316\u3067\u8ffd\u52a0\r\n#include &lt;stdlib.h&gt; \/\/EXIT_FAILURE\u306a\u3069\u3067\u8ffd\u52a0\r\n#include &lt;unistd.h&gt;\r\n#include &lt;sys\/wait.h&gt;\r\n\r\n#define Max_Children 3 \/* \u5b50\u30d7\u30ed\u30bb\u30b9\u306e\u6700\u5927\u6570 *\/\r\n#define PID_FILE \"\/var\/run\/pre_daemon.pid\"\r\n\r\nvoid write_pid();\r\nvoid daemonize();\r\n\r\n\/* INCLUDE: apr_hash.h\r\n\u00a0* apr_hash_make \/ apr_hash_set \/ apr_hash_get \/\r\n\u00a0* apr_hash_count \/ apr_hash_first \/ apr_hash_next \/\r\n\u00a0* apr_hash_this *\/\r\n\r\n\/* \u30cf\u30c3\u30b7\u30e5\u30c6\u30fc\u30d6\u30eb\u306e\u4f8b\r\n\u00a0* HASHTABLE: apr_hash_make \/ apr_hash_set \/ apr_hash_get \/\r\n\u00a0* apr_hash_count \/ apr_hash_first \/ apr_hash_next \/ apr_hash_this *\/\r\n\r\nstatic apr_pool_t *pool = NULL;\r\nstatic apr_hash_t *hash = NULL;\r\n\r\nint main(void)\r\n{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ \u30c7\u30fc\u30e2\u30f3\u5316\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 daemonize();\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/kill \u3057\u3084\u3059\u3044\u3088\u3046\u306b pid \u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 write_pid();\r\n\r\n\u00a0\u00a0\u00a0 \/\/apr\u3092\u521d\u671f\u5316\r\n\u00a0\u00a0\u00a0 apr_initialize();\r\n\r\n\u00a0\u00a0\u00a0 \/\/\u30e1\u30e2\u30ea\u30d7\u30fc\u30eb\u3092\u4f5c\u6210\r\n\u00a0\u00a0\u00a0 apr_pool_create(&amp;pool, NULL);\r\n\r\n\u00a0\u00a0\u00a0 \/\/\u30cf\u30c3\u30b7\u30e5\u3092\u4f5c\u6210\u3059\u308b\u3002\r\n\u00a0\u00a0\u00a0 hash = apr_hash_make(pool);\r\n\r\n\u00a0\u00a0\u00a0 \/\/\u89aa\u30d7\u30ed\u30bb\u30b9\u306e\u30eb\u30fc\u30d7\r\n\u00a0\u00a0\u00a0 while(1){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 while(apr_hash_count(hash) &gt;= Max_Children){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int status;\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pid_t child_pid = wait(&amp;status); \/\/\u5b50\u30d7\u30ed\u30bb\u30b9\u306e\u7d42\u4e86\u3092\u5f85\u3064\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 apr_hash_set(hash, &amp;child_pid, sizeof(child_pid), NULL);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/\u306a\u304f\u306a\u3063\u305f\u5b50\u30d7\u30ed\u30bb\u30b9\u306f\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u524a\u9664\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 pid_t *pid = apr_palloc(pool, sizeof(pid_t));\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/* \u30a8\u30e9\u30fc\u5fa9\u5e30\u6642\u306a\u3069\u306b\u30e1\u30e2\u30ea\u3092\u89e3\u653e\u3057\u5fd8\u308c\u305f\u5834\u5408\u306b\u3082\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * apache\u304c\u30d7\u30fc\u30eb(apr_pool_t\u306b\u3088\u3063\u3066\u7ba1\u7406\u3055\u308c\u3066\u3044\u308b)\u89e3\u653e\u6642\u306b\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u81ea\u52d5\u7684\u306b\u89e3\u653e\u3092\u884c\u3063\u3066\u304f\u308c\u308b\u305f\u3081\u3001\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u308b\u3002\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u3089\u3057\u3044 *\/\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *pid = fork();\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 if(*pid==0){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 while(1){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 system(\"bash \/root\/program\/kill.sh\\n\");\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 sleep(1);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 apr_hash_set(hash, pid, sizeof(pid_t), 1); \/\/\u5b50\u30d7\u30ed\u30bb\u30b9\u3092\u30cf\u30c3\u30b7\u30e5\u30c6\u30fc\u30d6\u30eb\u306b\u8ffd\u52a0\u3059\u308b\u3002\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 usleep(100);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return 0;\r\n}\r\n\r\nvoid write_pid(){\r\n\u00a0 FILE *fp;\r\n\u00a0 fp = fopen(PID_FILE, \"w\");\r\n\u00a0 fprintf(fp, \"%d\", getpid());\r\n\u00a0 fclose(fp);\r\n}\r\n\r\nvoid daemonize(){\r\n\u00a0 pid_t pid, sid;\r\n\r\n\u00a0 \/* \u30ab\u30ec\u30f3\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092 \/ \u306b\u5909\u66f4 *\/\r\n\u00a0 if( chdir(\"\/\") &lt; 0 )\u00a0 exit(EXIT_FAILURE);\r\n\r\n\u00a0 \/* \u5b50\u30d7\u30ed\u30bb\u30b9\u306e\u958b\u59cb *\/\r\n\u00a0 pid = fork();\r\n\u00a0 if( pid &lt; 0 ) exit(EXIT_FAILURE);\r\n\r\n\u00a0 \/* \u89aa\u30d7\u30ed\u30bb\u30b9\u3092\u7d42\u4e86 *\/\r\n\u00a0 if( pid &gt; 0 ) exit(EXIT_SUCCESS);\r\n\r\n\u00a0 \/* \u65b0\u3057\u3044\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u4f5c\u6210 *\/\r\n\u00a0 sid = setsid();\r\n\u00a0 if( sid &lt; 0 ) exit(EXIT_FAILURE);\r\n\r\n\u00a0 \/* \u30d5\u30a1\u30a4\u30eb\u4f5c\u6210\u30de\u30b9\u30af\u3092\u30ea\u30bb\u30c3\u30c8 *\/\r\n\u00a0 umask(0);\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 close(STDOUT_FILENO);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 close(STDERR_FILENO);\r\n\r\n\u00a0 return;\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c<\/p>\n<pre>[1]\u00a0\u00a0 \u7d42\u4e86\u3057\u307e\u3057\u305f\u00a0\u00a0\u00a0\u00a0\u00a0 yes &gt; \/dev\/null\r\n[2]-\u00a0 \u7d42\u4e86\u3057\u307e\u3057\u305f\u00a0\u00a0\u00a0\u00a0\u00a0 yes &gt; \/dev\/null\r\n[3]+\u00a0 \u7d42\u4e86\u3057\u307e\u3057\u305f\u00a0\u00a0\u00a0\u00a0\u00a0 yes &gt; \/dev\/null\r\n\r\n[root@localhost program]# .\/pre_sig_2\r\n[root@localhost program]#<\/pre>\n<p>\u3044\u307e\u3044\u3061\u5206\u304b\u308a\u306b\u304f\u3044\u7d50\u679c\u3060\u3051\u3069\u3001Daemon\u306a\u306e\u3067\u5b9f\u884c\u3059\u308b\u3068\u30d7\u30ed\u30f3\u30d7\u30c8\u304c\u5e30\u308a\u307e\u3059\u3002<\/p>\n<p>\u9759\u6b62\u753b\u3063\u3066\u3044\u3046\u3068\u5909\u3060\u3051\u3069\u3001Yes\u653b\u6483\u3092\u3057\u3066\u95be\u5024\u307e\u3067\u4e0a\u3052\u3066\u3001TOP\u3067\u5f85\u3061\u69cb\u3048\u3066KILL\u3055\u308c\u3066\u304b\u3089\u30d7\u30ed\u30f3\u30d7\u30c8\u306b\u623b\u308b\u3068\u3053\u306e\u8868\u793a\u304c\u6b8b\u3063\u3066\u307e\u3059\u3068\u3044\u3046\u611f\u3058\u3067\u3059\u3002<\/p>\n<p>\u3046\u30fc\u3093\u3001\u307b\u3057\u3044\u7d50\u679c\u304c\u5f97\u3089\u308c\u3066\u6e80\u8db3\u3067\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306fC\u8a00\u8a9e\u306e\u52c9\u5f37\u3068\u3044\u3046\u304b\u3001Unix\u3068\u3044\u3046\u304bLinux\u3068\u3044\u3046\u304b\u3001Unix\u306fC\u8a00\u8a9e\u3067\u3067\u304d\u3066\u3044\u308b\u3093\u3060\u304b\u3089\u3001\u6839\u672c\u7684\u306b\u306fC\u8a00\u8a9e\u306e\u52c9\u5f37\u306a\u306e\u304bUnix\u306e\u52c9\u5f37\u306a\u306e\u304b\u5206\u304b\u3089\u3093\u3002\u306a\u3093\u3060\u304b\u6df7\u4e71\u3057\u305d\u3046\u3067\u3042\u308b\u3002<\/p>\n<p>\u3044\u3084\u3001\u3053\u308c\u306f<span style=\"font-size: 14pt;\">\u6df7\u4e71\u3057\u3066\u3044\u308b\u3093\u3058\u3083\u306a\u3044\uff1f<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>\u4f59\u8ac7\u306a\u3093\u3067\u3059\u304c\u3001\u53c2\u8003\u30b5\u30a4\u30c8\u3067\u3084\u3063\u3066\u3044\u308b\u300c\u30b7\u30b0\u30ca\u30eb\u30cf\u30f3\u30c9\u30e9\u300d\u306e\u5b9f\u88c5\u306b\u306f\u5931\u6557\u3057\u3066\u3044\u308b\u306e\u3060\u3051\u3069\u3001\u3044\u3064\u3082pkill\u3067\u843d\u3068\u3057\u3066\u3044\u308b\u306e\u3067\u3042\u307e\u308a\u3044\u3089\u306a\u3044\u304b\u306a\u3041\u3068\u601d\u3063\u3066\u307e\u3059\u304c\u3001\u307e\u305f\u30c1\u30e3\u30ec\u30f3\u30b8\u3057\u3066\u307f\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>PID\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\u90e8\u5206\u306f\u305d\u306e\u540d\u6b8b\u3067\u3059\u306d\u3002<\/p>\n<p>\u6b21\u306fLinux\uff0bKVM+QEMU\u3067\u306e\u52d5\u4f5c\u78ba\u8a8d\u3060\u304c\u3001\u4eee\u60f3\u74b0\u5883\u3092\u30bf\u30fc\u30df\u30ca\u30eb\u3067\u306e\u74b0\u5883\u306b\u306a\u308c\u3066\u3057\u307e\u3046\u3068\u7269\u7406\u30b5\u30fc\u30d0\u30fc\u306e\u4f5c\u696d\u304c\u306a\u304b\u306a\u304b\u51fa\u3060\u3057\u304c\u9045\u304f\u306a\u3063\u3066\u3057\u307e\u3046\u306d\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u53c2\u8003\u30b5\u30a4\u30c8<\/p>\n<p>\u30d5\u30a1\u30a4\u30a2\u30fc\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3000<a href=\"http:\/\/www.fireproject.jp\/feature\/c-language\/process\/fork-wait.html\" target=\"_blank\" rel=\"noopener noreferrer\">fork\u3068wait\u3068\u30be\u30f3\u30d3\u30d7\u30ed\u30bb\u30b9<\/a><\/p>\n<p><a href=\"http:\/\/www35.atwiki.jp\/futoyama\/pages\/49.html\" target=\"_blank\" rel=\"noopener noreferrer\">Tomorrow is always fresh with no mistake in it.@\u5099\u5fd8<\/a><\/p>\n<p>yoshifumi1975&#8217;s diary\u3000<a class=\"entry-title-link bookmark\" href=\"http:\/\/yoshifumi.hateblo.jp\/entry\/20090320\/p2\">C\u8a00\u8a9e\u3067prefork\u578b\u306e\u30c7\u30fc\u30e2\u30f3\u3092\u66f8\u304f(3): \u30c7\u30fc\u30e2\u30f3\u5316<\/a><\/p>\n<p>\u3059\u304c\u30d6\u30ed\u3000\u3000<a class=\"entry-title-link bookmark\" href=\"http:\/\/sugamasao.hatenablog.com\/entry\/20090304\/1236180104\">daemon \u3092\u4f5c\u308b<\/a><\/p>\n<p>\u897f\u5357\u5b66\u9662\u5927\u5b66\u3000<a href=\"http:\/\/www.seinan-gu.ac.jp\/~shito\/old_pages\/hacking\/shell\/sh\/boot_shutdown.html\" target=\"_blank\" rel=\"noopener noreferrer\"><b>init\u30c7\u30fc\u30e2\u30f3\u3092\u7406\u89e3\u3059\u308b&#8211;Debian\u7de8<\/b><\/a><\/p>\n<p id=\"content_1_0\">Silicon linux\u00a0\u00a0 <a title=\"\u30c7\u30fc\u30e2\u30f3\u30d7\u30ed\u30bb\u30b9\u304b\u3089\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u51fa\u529b\u3059\u308b\" href=\"http:\/\/www.si-linux.co.jp\/catwiki\/index.php?%A5%C7%A1%BC%A5%E2%A5%F3%A5%D7%A5%ED%A5%BB%A5%B9%A4%AB%A4%E9%A5%B3%A5%F3%A5%BD%A1%BC%A5%EB%A4%CB%BD%D0%CE%CF%A4%B9%A4%EB\">\u30c7\u30fc\u30e2\u30f3\u30d7\u30ed\u30bb\u30b9\u304b\u3089\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u51fa\u529b\u3059\u308b<\/a><\/p>\n<p>MARU\u306e\u3066\u304f\u3081\u3082\u3000\u3000<a href=\"http:\/\/marutechmemo.blog56.fc2.com\/blog-entry-17.html\" name=\"17\">python\u3067\u4e00\u884cWeb\u30b5\u30fc\u30d0<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div class='wp_social_bookmarking_light'>        <div class=\"wsbl_twitter\"><a href=\"https:\/\/twitter.com\/share\" class=\"twitter-share-button\" data-url=\"https:\/\/www.vincentina.net\/?p=4094\" data-text=\"C\u3067\u30b5\u30fc\u30d0\u30fc\u76e3\u8996\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u307f\u3088\u3046\u3000\u305d\u306e3\" data-via=\"TakekenTw\" data-lang=\"ja\">Tweet<\/a><\/div><\/div>\n<br class='wp_social_bookmarking_light_clear' \/>\n","protected":false},"excerpt":{"rendered":"<p>\u3064\u3044\u306bDaemon\u5316\u3060\u3051\u3069\u3001\u610f\u5916\u306a\u4e8b\u5b9f\u304c\u5f85\u3063\u3066\u3044\u305f \u524d\u3005\u56de\u304f\u3089\u3044\u306e\u300c\u305f\u3089\u3053\u9c48\u306e\u5b50\u300d\u306e\u56de\u3067\u3001\u89aa\u30d7\u30ed\u30bb\u30b9\u304c\u306a\u304f\u306a\u3063\u305f\u6642\u306b\u5b50\u30d7\u30ed\u30bb\u30b9\u304cinit\u306e\u5b50\u306b\u306a\u308b\u73fe\u8c61\u304c\u3042\u3063\u3066\u3001\u305d\u308c\u3067init\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u4f5c\u308c\u308b\u3093\u304b\u306a\uff1f\u3044\u3084\u3041\u3001\u305d\u3093\u306a\u307e\u3055 &hellip; <a href=\"https:\/\/www.vincentina.net\/?p=4094\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;C\u3067\u30b5\u30fc\u30d0\u30fc\u76e3\u8996\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u307f\u3088\u3046\u3000\u305d\u306e3&#8221; 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