̾??

pathconf, fpathconf — ??????ǽ?ʥѥ?̾?ѿ???????????

?饤?֥???

Standard C Library (libc, -lc)

????

<unistd.h> long pathconf(const char *path, int name) long fpathconf(int fd, int name)

????

pathconf() ?????ƥॳ?????? fpathconf() ?????ƥॳ?????ϡ???????ǽ?ʥ????ƥ??³??θ????͡??ޤ??ϥѥ?̾?? ?ե????뵭?һҤ??б????륪?ץ??????ѿ??? ???ץꥱ??????????Ƚ?ꤹ????ˡ???󶡤??ޤ???

pathconf() ?ξ??硢 path ?????ϥե??????ޤ??ϥǥ??쥯?ȥ???̾???Ǥ??? fpathconf() ?ξ??硢 fd ?????ϥ????ץ??ե??????ε??һҤǤ??? name ?????ϡ??Ȳ񤹤륷???ƥ??ѿ??????ꤷ?ޤ??? ???줾????̾???˴ؤ??륷???ܥ??å??????ϥ??󥯥롼?ɥե????? <unistd.h> ?ˤ????ޤ???

???Ѳ?ǽ???ͤϼ??ΤȤ????Ǥ?:

_PC_LINK_MAX

?????Υե????????󥯥??????ȡ?

_PC_MAX_CANON

ü????ɸ???⡼???????Ԥ??????κ????Х??ȿ???

_PC_MAX_INPUT

ü???????Ԥ??????????֤????ѤǤ????????Х??ȿ??κǾ??͡?

_PC_NAME_MAX

?ե?????̾?κ????Х??ȿ???

_PC_PATH_MAX

?ѥ?̾?κ????Х??ȿ???

_PC_PIPE_BUF

?ѥ??פ??Բ?ʬ?˽񤭹??ޤ????????Х??ȿ???

_PC_CHOWN_RESTRICTED

chown(2) ?????ƥॳ???????¹Ԥ????Τˡ?Ŭ?ڤ??ø???ɬ?פʾ????? 1 ???֤??? ?????Ǥʤ??????? 0 ???֤??ޤ??? ???Ƥξ????ˤ????? IEEE Std 1003.1-2001 (“POSIX.1”) ??Ŭ?ڤ??ø????׵ᤷ?ޤ?????????ư???Ϥ??ε??ʤ??????ǤǤϥ??ץ??????Ǥ?????

_PC_NO_TRUNC

???????Ǥ? {NAME_MAX} ??????Ĺ???ѥ?̾?????Ѥ??褦?Ȥ????? [ENAMETOOLONG] ???顼?????????????????ϡ?0 ?????礭???ͤ??֤??ޤ??? ?????Ǥʤ??????ˤϡ????Τ褦?ʹ??????Ǥ? {NAME_MAX} ???ڤ??ͤ??????ޤ??? ???Ƥξ????ˤ????? IEEE Std 1003.1-2001 (“POSIX.1”) ??Ŭ?ڤʥ??顼???׵ᤷ?ޤ?????????ư???Ϥ??ε??ʤ??????ǤǤϥ??ץ??????Ǥ????? ?ޤ??? POSIX ?????????Ƥ??ʤ??ե????륷???ƥ??Ϥ???ư???򥵥ݡ??Ȥ??ޤ?????

_PC_VDISABLE

ü??????ʸ????̵???ˤ??뤿?????ͤ??֤??ޤ???

_PC_ASYNC_IO

??Ʊ?? I/O ?????ݡ??Ȥ????Ƥ????????? 1 ???֤??? ?????Ǥʤ????? 0 ???֤??ޤ???

_PC_PRIO_IO

???Υե????????Ф???ͥ?? I/O ?????ݡ??Ȥ????Ƥ????????? 1 ???֤??? ?????Ǥʤ????? 0 ???֤??ޤ???

_PC_SYNC_IO

???Υե????????Ф???Ʊ?? I/O ?????ݡ??Ȥ????Ƥ????????? 1 ???֤??? ?????Ǥʤ????? 0 ???֤??ޤ???

_PC_ALLOC_SIZE_MIN

?ե??????ΰ???????Ǽ???뤿???˳??ݤ??????ΰ??κǾ??Х??ȿ???

_PC_FILESIZEBITS

?????ե????륵??????ɽ???????Τ?ɬ?פʥӥåȿ???

_PC_REC_INCR_XFER_SIZE

?ե?????ž?????????Ρ? _PC_REC_MIN_XFER_SIZE ???? _PC_REC_MAX_XFER_SIZE ?ؤο侩?????̡?

_PC_REC_MAX_XFER_SIZE

?侩?ե?????ž?????????κ????͡?

_PC_REC_MIN_XFER_SIZE

?侩?ե?????ž?????????κǾ??͡?

_PC_REC_XFER_ALIGN

?ե?????ž???Хåե??ο侩???饤???????ȡ?

_PC_SYMLINK_MAX

?????ܥ??å????󥯤˻Ȥ??????????Х??ȿ???

_PC_ACL_EXTENDED

???ꤵ?줿?ե????????Ф??ƥ????????????ꥹ?? (ACL) ?? ?????Ǥ????????? 1 ???֤????????Ǥʤ????? 0 ???֤??ޤ???

_PC_ACL_PATH_MAX

ACL ?????ȥ??Υե????????κ???????

_PC_CAP_PRESENT

???ꤵ?줿?ե????????Ф??ƥ????ѥӥ??ƥ????֤? ?????Ǥ????????? 1 ???֤????????Ǥʤ????? 0 ???֤??ޤ???

_PC_INF_PRESENT

???ꤵ?줿?ե????????Ф??ƾ??????٥뤬 ?????Ǥ????????? 1 ???֤????????Ǥʤ????? 0 ???֤??ޤ???

_PC_MAC_PRESENT

???ꤵ?줿?ե????????Ф??ƶ??????????????? (MAC) ???٥뤬 ?????Ǥ????????? 1 ???֤????????Ǥʤ????? 0 ???֤??ޤ???

??????

pathconf() ?ޤ??? fpathconf() ?θƤӽФ????????˴?λ???ʤ??????? -1 ???֤??졢 errno ??Ŭ?ڤ??ͤ????ꤵ???ޤ??? ?ѿ??˷????դ????줿??ǽ???????ƥ????˸³????????ʤ??Ȥ???-1 ???֤??졢 errno ?Ͻ????????ޤ????? ?????ʳ??ξ??硢???ߤ??ѿ??ͤ??֤????ޤ???

???顼

???ξ????Τɤ줫???????????硢 pathconf() ?????ƥॳ?????? fpathconf() ?????ƥॳ?????? -1 ???֤??? errno ???б??????ͤ????ꤷ?ޤ???

[EINVAL]

name ???????ͤ?̵???Ǥ???

[EINVAL]

???Υե??????Ȥ????ѿ??Ȥη????դ??ϡ??????????Ƥ??ޤ?????

pathconf() ?????ƥॳ?????ϼ??ξ????˼??Ԥ??ޤ?:

[ENOTDIR]

?ѥ??ι??????????˥ǥ??쥯?ȥ??ʳ??Τ??Τ??ޤޤ??Ƥ??ޤ???

[ENAMETOOLONG]

?ѥ?̾?ι??????Ǥ? {NAME_MAX} ??ʸ???????ۤ??Ƥ??뤫 (???????嵭?? _PC_NO_TRUNC ?򻲾?)???ޤ??ϥѥ?̾???Τ? {PATH_MAX} ??ʸ???????ۤ??Ƥ??ޤ???

[ENOENT]

???ꤵ?줿?ե????뤬¸?ߤ??ޤ?????

[EACCES]

???ꤵ?줿?ѥ??ˤϡ??????????Ĥ????Ƥ??ʤ??ǥ??쥯?ȥ꤬?ޤޤ??Ƥ??ޤ???

[ELOOP]

?ѥ?̾???Ѵ??????Ȥ??˸??Ф??줿?????ܥ??å????󥯤?¿?????ޤ???

[EIO]

?ե????륷???ƥ????ɤ߽񤭤??Ƥ????֤??????ϥ??顼??ȯ?????ޤ?????

fpathconf() ?????ƥॳ?????ϼ??ξ????˼??Ԥ??ޤ?:

[EBADF]

fd ??????ͭ???ʥ????ץ??ե????뵭?һҤǤϤ????ޤ?????

[EIO]

?ե????륷???ƥ????ɤ߽񤭤??Ƥ????֤??????ϥ??顼??ȯ?????ޤ?????

??Ϣ????

sysctl(3)

????

pathconf() ?????ƥॳ?????? fpathconf() ?????ƥॳ?????? 4.4BSD ?ǤϤ??????о줷?ޤ?????