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CHROOTSection: Linux Programmer's Manual (2)Updated: 21 August 1997 Index Return to Main Contents ̾Á°chroot - ¥ë¡¼¥È¡¦¥Ç¥£¥ì¥¯¥È¥ê¤òÊѹ¹¤¹¤ë½ñ¼°#include <unistd.h>ÀâÌÀchroot ¤Ï¡¢¥ë¡¼¥È¡¦¥Ç¥£¥ì¥¯¥È¥ê¤ò path ¤Ç»ØÄꤵ¤ì¤¿¥Ç¥£¥ì¥¯¥È¥ê¤ËÊѹ¹¤¹¤ë¡£ ¤³¤Î¥Ç¥£¥ì¥¯¥È¥ê°Ê²¼¤¬ / ¤«¤é»Ï¤Þ¤ë¥Ñ¥¹Ì¾¤È¤·¤Æ»È¤ï¤ì¤ë¡£ ¤³¤Î¥ë¡¼¥È¡¦¥Ç¥£¥ì¥¯¥È¥ê¤Ï¸½ºß¤Î¥×¥í¥»¥¹¤ÎÁ´¤Æ¤Î»Ò¥×¥í¥»¥¹¤Ë¼õ¤±·Ñ¤¬¤ì¤ë¡£¥¹¡¼¥Ñ¡¼¡¦¥æ¡¼¥¶¡¼¤À¤±¤¬¥ë¡¼¥È¡¦¥Ç¥£¥ì¥¯¥È¥ê¤òÊѹ¹¤Ç¤¤ë¡£ ¤³¤Î¥³¡¼¥ë¤Ï¸½ºß¤Îºî¶È¥Ç¥£¥ì¥¯¥È¥ê (working directory) ¤òÊѹ¹¤·¤Ê¤¤¤³¤È¤ËÃí°Õ¡£ ¤½¤Î¤¿¤á '.' ¤¬ '/' ¤òº¬¤È¤¹¤ë¥Ä¥ê¡¼¤Î³°¤Ë¤Ê¤ë¾ì¹ç¤¬¤¢¤ë¡£ ÆÃ¤Ë¡¢¥¹¡¼¥Ñ¡¼¡¦¥æ¡¼¥¶¡¼¤Ï `mkdir foo; chroot foo; cd ..' ¤È¤¹¤ì¤Ð¡Öchroot jail¡×¤«¤éƨ¤²½Ð¤»¤Æ¤·¤Þ¤¦¡£ ÊÖ¤êÃÍÀ®¸ù¤¹¤ë¤È 0 ¤òÊÖ¤¹¡£ ¼ºÇÔ¤¹¤ë¤È -1¤òÊÖ¤·¡¢ errno ¤ËŬÀÚ¤ÊÃͤòÀßÄꤹ¤ë¡£¥¨¥é¡¼¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ë¤è¤Ã¤Æ¤Ï¾¤Î¥¨¥é¡¼¤¬ÊÖ¤µ¤ì¤ë»ö¤¬¤¢¤ë¡£ °ìÈÌŪ¤Ê¥¨¥é¡¼¤ò°Ê²¼¤Ëµó¤²¤ë:
½àµòSVr4, SVID, 4.4BSD, X/OPEN¡£ ¤³¤Î´Ø¿ô¤Ï POSIX.1 ¤Ë¤Ï¤Ê¤¤¡£ SVr4 ¤Ë¤Ï¾¤Ë EINTR, ENOLINK, EMULTIHOP ¥¨¥é¡¼¾õÂ֤ˤĤ¤¤Æ¤Îµ½Ò¤¬¤¢¤ë¡£ X/OPEN ¤Ë¤Ï EIO, ENOMEM, EFAULT ¥¨¥é¡¼¾õÂ֤ε½Ò¤Ï¤Ê¤¤¡£ ¤³¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Ï X/OPEN ¤ò¼õ¤±·Ñ¤¤¤À¤â¤Î¤Ç¤¢¤ë¡£´ØÏ¢¹àÌÜchdir(2)
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