Linux Certif

Toute la documentation sur la certification Linux LPI

euidaccess

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euidaccess, eaccess - ¥Õ¥¡¥¤¥ë¤Ø¤Î¥¢¥¯¥»¥¹¸¢¤ò¼Â¸ú¥æ¡¼¥¶¤Ç¥Á¥§¥Ã¥¯¤¹¤ë

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#include <unistd.h>



int euidaccess(const char *pathname, int mode);

int eaccess(const char *pathname, int mode);

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access(2) ¤ÈƱÍÍ¡¢ euidaccess() ¤Ï°ú¤­¿ô pathname ¤Ç»ØÄꤵ¤ì¤¿¥Õ¥¡¥¤¥ë¤Îµö²Ä (permission) ¤È¸ºß¤Î¥Á¥§¥Ã¥¯¤ò¹Ô¤¦¡£ access(2) ¤Ï¥×¥í¥»¥¹¤Î¼Â (real) ¥æ¡¼¥¶ID / ¼Â¥°¥ë¡¼¥×ID ¤òÍѤ¤¤Æ¥Á¥§¥Ã¥¯¤ò¹Ô¤¦¤Î¤ËÂФ·¡¢ euidaccess() ¤Ï¼Â¸ú (effective) ID ¤òÍѤ¤¤ë¡£

mode ¤Ï R_OK, W_OK, X_OK, F_OK ¤Î°ì¤Ä°Ê¾å¤«¤é¹½À®¤µ¤ì¤ë¥Þ¥¹¥¯¤Ç¤¢¤ë¡£ R_OK, W_OK, X_OK, F_OK ¤Ï access(2) ¤ÈƱ¤¸°ÕÌ£¤ò»ý¤Ä¡£

eaccess() ¤Ï euidaccess() ¤ÎƱµÁ¸ì¤Ç¤¢¤ê¡¢Â¾¤Î¤¤¤¯¤Ä¤«¤Î¥·¥¹¥Æ¥à¤È¤Î¸ß´¹À­¤Î¤¿¤á¤ËÄ󶡤µ¤ì¤Æ¤¤¤ë¡£

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À®¸ù¤·¤¿¾ì¹ç (Í׵ᤷ¤¿Á´¤Æ¤Ë¤Ä¤¤¤Æ¤Îµö²Ä¤¬ÆÀ¤é¤ì¤¿¤é)¡¢¥¼¥í¤¬ÊÖ¤µ¤ì¤ë¡£ ¥¨¥é¡¼¤Î¾ì¹ç (mode ¤Î¾¯¤Ê¤¯¤È¤â°ì¤Ä¤Î¥Ó¥Ã¥È¤ÇÍ׵ᤷ¤¿µö²Ä¤¬¤Ê¤«¤Ã¤¿¾ì¹ç¤ä¡¢ ¾¤Î¥¨¥é¡¼¤¬µ¯¤³¤Ã¤¿¾ì¹ç)¡¢-1 ¤¬ÊÖ¤µ¤ì¡¢ errno ¤¬Å¬ÀÚ¤ËÀßÄꤵ¤ì¤ë¡£

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access(2) ¤ÈƱ¤¸¡£

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¤³¤ì¤é¤Î´Ø¿ô¤ÏÈóɸ½à¤Ç¤¢¤ë¡£ ¾¤Î¤¤¤¯¤Ä¤«¤Î¥·¥¹¥Æ¥à¤Ë¤Ï eaccess() ´Ø¿ô¤¬¤¢¤ë¡£

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glibc ¤Ç¤ÎÃí°Õ

eaccess() ´Ø¿ô¤Ï glibc ¤Î¥Ð¡¼¥¸¥ç¥ó 2.4 ¤ÇÄɲ䵤줿¡£

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access(2), chmod(2), chown(2), faccessat(2), open(2), setgid(2), setuid(2), stat(2), path_resolution(7)