QUOTACTL

Section: Linux Programmer's Manual (2)
Updated: 14 April 1996
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quotactl - µð½ºÅ© ºÐÇÒÀ» ´Ù·é´Ù  

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#include <sys/types.h>
#include <sys/quota.h>

int quotactl (int cmd, const char *special, int id , caddr_t addr);

#include <linux/unistd.h>

_syscall4(int, quotactl, int, cmd, const char *, special , int, id, caddr_t, addr);  

¼³¸í

quota systemÀº °¢°¢ÀÇ »ç¿ëÀÚ³ª ±×·ìÀ» À§ÇØ ÁÖ¾îÁø ÆÄÀÏ ½Ã½ºÅÛ»ó¿¡¼­ »ç¿ëÇÒ ¼ö ÀÖ´Â µð½ºÅ© °ø°£ÀÇ ¾çÀ» soft limit³ª hard limit·Î ¹­¾îÁÖ´Â °ÍÀÌ´Ù. hard limit´Â ¿¬°áµÉ ¼ö ¾ø´Ù. soft limit´Â ¿¬°áµÉ ¼ö ÀÖ´Ù. ÇÏÁö¸¸ ÁÖÀÇ°¡ ÇÊ¿äÇÏ´Ù. °Ô´Ù°¡, µ¡ºÙ¿©¼­ »ç¿ëÀÚ´Â µðÆúÆ® »óÅ¿¡¼­ Çѹø¿¡ ÀÏÁÖÀÏ ÀÌ»ó soft limit »ó¿¡ ÀÖÀ» ¼ö ¾ø´Ù. ÀÏÁÖÀÏ ÈÄ¿¡´Â hard limit·Î °è»êµÈ´Ù. quotactl ½Ã½ºÅÛ È£ÃâÀº ÀÌ quota¸¦ ´Ù·é´Ù. ÀÌ°ÍÀº ù¹ø° µ¶¸³º¯¼ö´Â QCMD(subcmd,type) ÀÇ ÇüÅÂÀÌ´Ù. type Àº USRQUOTA ³ª GRPQUOTA (°¢°¢ »ç¿ëÀÚ quota¿Í ±×·ì quota)ÀÌ°í, subcmd ´Â ¾Æ·¡¸¦ ÂüÁ¶ÇÏÀÚ. µÎ¹ø° µ¶¸³º¯¼ö special ´Â quota¿¡ Àû¿ëµÇ´Â Ưº°ÇÑ ÀåÄ¡ÀÌ´Ù. ¹Ýµå½Ã ¸¶¿îÆ® ½ÃÄÑ¾ß ÇÑ´Ù. ¼¼¹ø° µ¶¸³º¯¼ö id ´Â ÀÌ quota°¡ Àû¿ëµÇ´Â »ç¿ëÀÚ³ª ±×·ìÀÇ idÀÌ´Ù. ³×¹ø° µ¶¸³º¯¼ö addr ´Â ¸í·É¾î¿¡ µû¸¥ µ¥ÀÌÅÍ ±¸Á¶ÀÇ ÁÖ¼ÒÀÌ´Ù. subcmd ´Â
Q_QUOTAON
°¡´É quotaÁß Çϳª ÀÌ´Ù. addr µ¶¸³º¯¼ö´Â ÆÄÀÏ ½Ã½ºÅÛÀ» À§ÇÑ quota¸¦ Æ÷ÇÔÇÏ´Â ÆÄÀÏÀÇ °æ·Î¸íÀÌ´Ù.
Q_QUOTAOFF
quota »ç¿ëºÒ°¡.
Q_GETQUOTA
limit°ú ÇöÀç µð½ºÅ© °ø°£ÀÇ »ç¿ë¾çÀ» °¡Áø´Ù. addr µ¶¸³º¯¼ö´Â dqblk structure ( <sys/quota.h> ¿¡ Á¤ÀÇµÈ )¸¦ °¡¸£Å°´Â Æ÷ÀÎÅÍÀÌ´Ù.
Q_SETQUOTA
limit°ú ÇöÀç »ç¿ë¾çÀ» ¼³Á¤ÇÑ´Ù; addr ´Â ÀÌÀü°ú °°ÀÌ ¾²ÀδÙ.
Q_SETQLIM
limit¸¦ ¼³Á¤ÇÑ´Ù; addr ´Â ÀÌÀü°ú °°ÀÌ ¾²ÀδÙ.
Q_SETUSE
»ç¿ë·® ¼³Á¤.
Q_SYNC
filesystems quotasÀÇ Sync disk copy
Q_GETSTATS
ÇöÁ¦ »óŸ¦ °¡Áø´Ù.
 

¹Ýȯ°ª

¼º°ø½Ã, quotactl ´Â 0À» ¹ÝȯÇÑ´Ù. ¿¡·¯½Ã, -1À» ¹ÝȯÇÑ´Ù. errno ´Â ÀûÀýÈ÷ ¼³Á¤µÈ´Ù.  

¿¡·¯

ENOPKG
Ä¿³ÎÀÌ quota Áö¿ø ¾øÀÌ ÄÄÆÄÀÏ µÇ¾ú´Ù.The kernel was compiled without quota support.
EFAULT
ºÎÀû´çÇÑ addr °ª.
EINVAL
type ÀÌ ¾Ë·ÁÁöÁö ¾ÊÀº typeÀÌ´Ù. ȤÀº, special À» ãÀ» ¼ö ¾ø´Ù.
ENOTBLK
special ÀÌ block special deviceÀÌ ¾Æ´Ï´Ù.
ENODEV
special À» ¸¶¿îÆ® Å×ÀÌºí¿¡¼­ ãÀ» ¼ö ¾ø´Ù.
EACCES
quota°¡ ÀÏ¹Ý ÆÄÀÏÀÌ ¾Æ´Ï´Ù.
EIO
quota ÆÄÀÏÀ» Àаųª ¾µ ¼ö ¾ø´Ù.
EMFILE
³Ê¹« ¸¹Àº ÆÄÀÏÀÌ ¿­·Á À־ quotaÆÄÀÏÀ» ¿­ ¼ö ¾ø´Ù.
EBUSY
Q_QUOTAON ÀÌ ¿ä±¸µÇ¾úÁö¸¸, quota°¡ ÀÌ¹Ì »ç¿ëµÇ°í ÀÖ´Ù.
ESRCH
Q_GETQUOTA ³ª Q_SETQUOTA ³ª Q_SETUSE ³­ Q_SETQLIM °¡ quota°¡ °¡´ÉÇÑ ÆÄÀϽýºÅÛ¿¡°Ô ¿ä±¸µÇ¾ú´Ù.
EPERM
The process was not root (for the file system), and Q_GETQUOTA °¡ ´Ù¸¥ ÀÌ¹Ì »ç¿ëµÇ°í ÀÖ´Â id ¿¡°Ô ¿ä±¸µÇ¾ú´Ù. ȤÀº Q_GETSTATS ³ª Q_SYNC °¡ ¿ä±¸µÇ¾ú´Ù.
 

ȣȯ

BSD  

°ü·Ã Ç׸ñ

quota(1), getrlimit(2), setrlimit(2), ulimit(2), quotacheck(8), quotaon(8)  

¿ªÀÚ

ASPLINUX<man@asp-linux.co.kr>, 2000³â 7¿ù 29


 

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