MOUNT

̾Á°

½ñ¼°

int mount(const char *specialfile, const char * dir , const char * filesystemtype, unsigned long mountflags , const void * data);

int umount(const char *dir);  

ÀâÌÀ

umount ¤Ï dir ¤Ç»ØÄꤵ¤ì¤¿¡¢´û¤Ë·ë¤Ó¤Ä¤±¤é¤ì¤Æ¤¤¤ë(ºÇ¾å°Ì¤Î)¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ò³°¤¹¡£

¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Þ¥¦¥ó¥È/¥¢¥ó¥Þ¥¦¥ó¥È¤¬¤Ç¤­¤ë¤Î¤Ï¥¹¡¼¥Ñ¡¼¥æ¡¼¥¶¡¼ ¤À¤±¤Ç¤¢¤ë¡£

°ú¿ô filesystemtype ¤Ï /proc/filesystems Ãæ¤Ë¤¢¤²¤é¤ì¤Æ¤¤¤ëÃͤΰì¤Ä(Î㤨¤Ð "minix", "ext2", "msdos", "proc", "nfs", "iso9660" Åù)¤ò»ØÄꤹ¤ë¡£

°ú¿ô mountflags ¤ÏÀèƬ 16 ¥Ó¥Ã¥È¤¬¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð¡¼ 0xC0ED ¤Ç¤¢¤ê¡¢»Ä¤ê¤Î 16 ¥Ó¥Ã¥È¤Ï ¥Þ¥¦¥ó¥È¥Õ¥é¥° (libc4 ¤ª¤è¤Ó libc5 ¤Ç¤Ï <linux/fs.h> ¤Ç¡¢glibc2 ¤Ç¤Ï <sys/mount.h> ¤Ç°Ê²¼¤Î¤è¤¦¤ËÄêµÁ¤µ¤ì¤Æ¤¤¤ë) ¤Ç¤¢¤ë¡£

#define MS_RDONLY        1 /* mount read-only */
#define MS_NOSUID        2 /* ignore suid and sgid bits */
#define MS_NODEV         4 /* no access to device special files */
#define MS_NOEXEC        8 /* no program execution */
#define MS_SYNCHRONOUS  16 /* writes are synced at once */
#define MS_REMOUNT      32 /* alter flags of a mounted fs */
#define MS_MANDLOCK     64 /* allow mandatory locks */
#define MS_NOATIME    1024 /* do not update access times */
#define MS_NODIRATIME 2048 /* do not update dir access times */
#define MS_BIND       4096 /* bind subtree elsewhere */

°ú¿ô data ¤ÏÊ̤Υե¡¥¤¥ë¥·¥¹¥Æ¥à¤Ë¤è¤Ã¤Æ²ò¼á¤µ¤ì¤ë¡£

ÊÖ¤êÃÍ

¥¨¥é¡¼

EPERM

¼Â¹Ô¼Ô¤¬¥¹¡¼¥Ñ¡¼¥æ¡¼¥¶¡¼¤Ç¤Ï¤Ê¤¤¡£

ENODEV

filesystemtype ¤¬¥«¡¼¥Í¥ëÃæ¤ÇÄêµÁ (config) ¤µ¤ì¤Æ¤¤¤Ê¤¤¡£

ENOTBLK

specialfile ¤¬¥Ö¥í¥Ã¥¯¥Ç¥Ð¥¤¥¹¤Ç¤Ï¤Ê¤¤(¥Ç¥Ð¥¤¥¹¤¬Í׵ᤵ¤ì¤Æ¤¤¤ë¾ì¹ç)¡£

EBUSY

specialfile ¤Ï´û¤Ë¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤ë¡£¤Þ¤¿¤Ï´û¤Ë¥Õ¥¡¥¤¥ë¤¬½ñ¤­¹þ¤ßÍѤ˳«¤«¤ì¤Æ¤ª¤ê¡¢ Æɤ߹þ¤ßÀìÍѤ˺ƥޥ¦¥ó¥È¤¹¤ë¤³¤È¤¬¤Ç¤­¤Ê¤¤¡£¤Þ¤¿¤Ï dir ¤¬´û¤Ë»È¤ï¤ì¤Æ¤ª¤ê(¤¢¤ë¥¿¥¹¥¯¤¬»ÈÍÑÃæ¤Ç¤¢¤Ã¤¿¤ê¡¢Ê̤ΥǥХ¤¥¹¤Î ¥Þ¥¦¥ó¥È¥Ý¥¤¥ó¥È¤Ç¤¢¤Ã¤¿¤ê¡¢¥ª¡¼¥×¥ó¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¤Ç¤¢¤Ã¤¿¤ê....) dir ¤Ë¤Ï¥Þ¥¦¥ó¥È¤Ç¤­¤Ê¤¤¡£

EINVAL

specialfile ¤Î¥¹¡¼¥Ñ¡¼¥Ö¥í¥Ã¥¯¤¬Ìµ¸ú¤Ç¤¢¤ë¡£¤Þ¤¿¤Ï specialfile ¤¬ dir ¤ËÂФ·¤Æ¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤Ê¤¤¤Î¤ËºÆ¥Þ¥¦¥ó¥È¤¬Í׵ᤵ¤ì¤¿¡£¤Þ¤¿¤Ï dir ¤¬¥Þ¥¦¥ó¥È¥Ý¥¤¥ó¥È¤Ç¤Ï¤Ê¤¤¤Î¤Ë¥¢¥ó¥Þ¥¦¥ó¥È¤ÎÍ׵᤬¤¢¤Ã¤¿¡£

EFAULT

¾ì½ê¤ò¼¨¤¹°ú¿ô¤Î¤Ò¤È¤Ä¤¬¥æ¡¼¥¶¡¼¤Î¥¢¥É¥ì¥¹¶õ´Ö¤Î³°¤ò»Ø¤·¤Æ¤¤¤ë¡£

ENOMEM

¥«¡¼¥Í¥ë¤¬¥Õ¥¡¥¤¥ë̾¤ä¥Ç¡¼¥¿¤ò¥³¥Ô¡¼¤¹¤ë¤¿¤á¤Î¶õ¤­¥Ú¡¼¥¸¤ò³ÎÊݤǤ­¤Ê¤¤¡£

ENAMETOOLONG

¥Ñ¥¹Ì¾¤ÎŤµ¤¬ MAXPATHLEN ¤ò±Û¤¨¤¿¡£

ENOENT

¥Ñ¥¹Ì¾¤¬¶õ¤Ç¤¢¤ë¡£¤â¤·¤¯¤Ï»ØÄꤵ¤ì¤¿¥Ñ¥¹¤¬Â¸ºß¤·¤Ê¤¤¡£

ENOTDIR

2ÈÖÌܤΰú¿ô¡¢¤â¤·¤¯¤Ï1ÈÖÌܤΰú¿ô¤ÎÀÜƬ¼­¤¬¥Ç¥£¥ì¥¯¥È¥ê¤Ç¤Ï¤Ê¤¤¡£

EACCES

¥Ñ¥¹¤Ë´Þ¤Þ¤ì¤ë¥Ç¥£¥ì¥¯¥È¥ê¤Ë¸¡º÷(¼Â¹Ô)µö²Ä¤¬¤Ê¤¤¡£
¤Þ¤¿¤Ï MS_RONLY ¥Õ¥é¥°Ìµ¤·¤Ç¥ê¡¼¥É¥ª¥ó¥ê¡¼(Æɤ߽Ф·¤Î¤ß)¤Î¥Õ¥¡¥¤¥ë¥·¥¹ ¥Æ¥à¤ò¥Þ¥¦¥ó¥È¤·¤è¤¦¤È¤·¤¿¡£
¤Þ¤¿¤Ï¥Ö¥í¥Ã¥¯¥Ç¥Ð¥¤¥¹ specialfile ¤¬ MS_NODEV ¥ª¥×¥·¥ç¥ó¤Ç¥Þ¥¦¥ó¥È¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ë°ÌÃÖ¤·¤Æ¤¤¤ë¡£

ENXIO

¥Ö¥í¥Ã¥¯¥Ç¥Ð¥¤¥¹ specialfile ¤Î¥á¥¸¥ã¡¼¥Ê¥ó¥Ð¤¬ÈϰϤò±Û¤¨¤¿¡£

EMFILE

(¥Ö¥í¥Ã¥¯¥Ç¥Ð¥¤¥¹¤¬Í׵ᤵ¤ì¤¿»þ)¥À¥ß¡¼¥Ç¥Ð¥¤¥¹¤Î¥Æ¡¼¥Ö¥ë¤¬°ìÇդˤʤä¿¡£

½àµò

Îò»Ë

¸µ¤Î MS_SYNC ¥Õ¥é¥°¤Ï¡¢Ê̤ΠMS_SYNC ¤¬ <mman.h> ¤ËÄɲ䵤줿¤Î¤Ç 1.1.69 ¤«¤é MS_SYNCHRONOUS ¤Ë̾Á°¤¬ÊѤï¤Ã¤¿¡£  

´ØÏ¢¹àÌÜ

Index

̾Á°

½ñ¼°

ÀâÌÀ

ÊÖ¤êÃÍ

¥¨¥é¡¼

½àµò

Îò»Ë

´ØÏ¢¹àÌÜ