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| SUSER(9) | FreeBSD Kernel Developer's Manual | SUSER(9) |
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suser, suser_cred —
????
<sys/param.h>
<sys/systm.h>
int suser(struct
thread *td) int
suser_cred(struct ucred *cred,
int flag)
????
suser() ?????? suser_cred()
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suser()
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???줬???Ѥ??????٤??Ǥ???
suser_cred()
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?????åɤ?¸?ߤ??ʤ??????????ѥ桼???θ??¤?
?Ĥ????????줿 root
?˳??礵?????٤??????ޤ??ϥ????å????????٤???????
?¸??桼???Ȥ????????ϼºݤΥ桼???Ǥ??????ˡ????Ѥ??????٤??Ǥ???
?ǥե????ȤǤϡ?
jail(2)
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?ץ??????ϥ????ѥ桼???θ??¤??????ޤ?????
???????ʤ??顢???줬Ŭ?ڤʾ??礬???ꡢ
suser_cred() ?ؿ????Ϥ?
flag ?????? SUSER_ALLOWJAIL
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????Ū?ˤ?
jail(2)
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chroot(2)
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???Τ褦?ʸ??¤????????????٤??Ǥ???
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(?㤨?С?
????????ߥåȤ?Ŭ?Ѥ??줿?????η????ΤȤ?)
???????ޤ??? ?????ơ??????? suser_cred()
?ؿ??ؤ? flag ??????
SUSER_RUID
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suser() ??????
suser_cred()
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???Τ??뤳?Ȥˤ????ޤ??Τǡ?
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???????ؿ????ƤӽФ??٤??Ǥ???
??????
suser() ?????? suser_cred()
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0 ???֤??? ?????Ǥʤ??????ˤ?
EPERM ???֤??ޤ??? ?????ϡ?TRUE
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?դ?????
?ˤʤäƤ??ޤ??? TRUE ?α?????
suser()
?ϥ????ѥ桼???θ??¤??ޤ???
??Ϣ????
chroot(2), jail(2)?Х?
suser() ?????? suser_cred()
?ؿ??ϻ??¾??? 2000 ǯ?? 8 ??顢
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| April 2, 2002 | FreeBSD 13.1-RELEASE |
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