getgrent

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Langue: ja

Autres versions - même langue

Version: 1993-04-04 (openSuse - 09/10/07)

Section: 3 (Bibliothèques de fonctions)

Sommaire

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getgrent, setgrent, endgrent - ¥°¥ë¡¼¥×¥Õ¥¡¥¤¥ë¥¨¥ó¥È¥ê¤Î¼èÆÀ

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#include <sys/types.h>

#include <grp.h>



struct group *getgrent(void);



void setgrent(void);



void endgrent(void);

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getgrent() ´Ø¿ô¤Ï¡¢¥°¥ë¡¼¥×¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹¤«¤é¼èÆÀ¤·¤¿¥¨¥ó¥È¥ê¤ò Í×ÁÇËè¤Ëʬ²ò¤·¡¢³ÆÍ×ÁǤò³ÊǼ¤·¤¿¹½Â¤ÂΤؤΥݥ¤¥ó¥¿¤òÊÖ¤¹ (¥°¥ë¡¼¥×¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹¤ÎÎã: ¥í¡¼¥«¥ë¤Î¥°¥ë¡¼¥×¥Õ¥¡¥¤¥ë /etc/group, NIS, LDAP)¡£ ºÇ½é¤Ë¸Æ¤Ó½Ð¤µ¤ì¤¿»þ¤ÏºÇ½é¤Î¥¨¥ó¥È¥ê¤òÊÖ¤·¡¢¤½¤ì°Ê¹ß¤Ï ¸Æ¤Ó½Ð¤µ¤ì¤ëËè¤Ë¼¡¤Î¥¨¥ó¥È¥ê¤òÊÖ¤¹¡£

setgrent() ´Ø¿ô¤ò»È¤¦¤È¡¢¤â¤¦°ìÅÙÆɤ߹þ¤á¤ë¤è¤¦¤Ë¡¢ ¥°¥ë¡¼¥×¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹¤ÎÀèƬ¤ËÌá¤ë¡£

endgrent() ´Ø¿ô¤Ï¡¢Á´¤Æ¤Î½èÍý¤¬½ª¤ï¤Ã¤¿¸å¤Ë¥°¥ë¡¼¥×¡¦ ¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò¥¯¥í¡¼¥º¤¹¤ë¡£

group ¹½Â¤ÂΤϡ¢<grp.h> ¤Ç°Ê²¼¤Î¤è¤¦¤ËÄêµÁ¤µ¤ì¤Æ¤¤¤ë:


struct group {

    char   *gr_name;       /* ¥°¥ë¡¼¥×̾ */

    char   *gr_passwd;     /* ¥°¥ë¡¼¥×¤Î¥Ñ¥¹¥ï¡¼¥É */

    gid_t   gr_gid;        /* ¥°¥ë¡¼¥× ID */

    char  **gr_mem;        /* ¥°¥ë¡¼¥×¤Î¥á¥ó¥Ð */

};

ÊÖ¤êÃÍ

getgrent() ´Ø¿ô¤Ï group ¹½Â¤ÂΤؤΥݥ¤¥ó¥¿¤òÊÖ¤¹¡£ ¤³¤ì°Ê¾å¥¨¥ó¥È¥ê¤¬Ìµ¤¤¤«¡¢¥¨¥é¡¼¤¬È¯À¸¤·¤¿¾ì¹ç¤Ï NULL ¤òÊÖ¤¹¡£

¥¨¥é¡¼¤¬È¯À¸¤¹¤ë¤È¡¢ errno ¤¬Å¬ÀÚ¤ËÀßÄꤵ¤ì¤ë¡£ ¤³¤Î´Ø¿ô¤Î¸Æ¤Ó½Ð¤·¸å¤Ë errno ¤ò¥Á¥§¥Ã¥¯¤·¤¿¤¤¾ì¹ç¤Ï¡¢¸Æ¤Ó½Ð¤·Á°¤Ë errno ¤ò 0 ¤ËÀßÄꤷ¤Æ¤ª¤«¤Ê¤¤¤È¤¤¤±¤Ê¤¤¡£

¥¨¥é¡¼

EINTR
¥·¥°¥Ê¥ë¤¬¥­¥ã¥Ã¥Á¤µ¤ì¤¿¡£
EIO
I/O ¥¨¥é¡¼¡£
EMFILE
¸Æ¤Ó½Ð¤·¤¿¥×¥í¥»¥¹¤¬´û¤Ë¥Õ¥¡¥¤¥ë¤ò¥ª¡¼¥×¥ó¤·²á¤®¤Æ¤¤¤ë¡£
ENFILE
¥·¥¹¥Æ¥à¾å¤Ë¥ª¡¼¥×¥ó¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¤¬Â¿²á¤®¤ë¡£
ENOMEM
¥°¥ë¡¼¥×¾ðÊó¹½Â¤ÂΤò³ä¤êÅö¤Æ¤ë¤¿¤á¤Î¥á¥â¥ê¤¬ÉÔ½½Ê¬¡£
ERANGE
½½Ê¬¤Ê¥Ð¥Ã¥Õ¥¡¶õ´Ö¤¬¤Ê¤¤¡£

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/etc/group
¥í¡¼¥«¥ë¤Î¥°¥ë¡¼¥×¡¦¥Ç¡¼¥¿¥Ù¡¼¥¹¥Õ¥¡¥¤¥ë

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SVr4, 4.3BSD, POSIX.1-2001.

´ØÏ¢¹àÌÜ

fgetgrent(3), getgrent_r(3), getgrgid(3), getgrnam(3)