(split) Apply minor changes from v3.32 to v3.35 in the upstream.

[linuxjm/LDP_man-pages.git] / draft / man2 / mknodat.2

.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" This manpage is Copyright (C) 2006, Michael Kerrisk
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date.  The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein.  The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" Japanese Version Copyright (c) 2006 Yuichi SATO
.\"         all rights reserved.
.\" Translated 2006-09-30 by Yuichi SATO <ysato444@yahoo.co.jp>, LDP v2.39
.\"
.TH MKNODAT 2 2010-09-20 "Linux" "Linux Programmer's Manual"
.\"O .SH NAME
.SH ̾Á°
.\"O mknodat \- create a special or ordinary file relative to a directory
.\"O file descriptor
mknodat \- ¥Ç¥£¥ì¥¯¥È¥ê¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿¤«¤éÁêÂÐŪ¤Ê°ÌÃ֤ˡ¢
Æüì¥Õ¥¡¥¤¥ë¤äÄ̾ï¤Î¥Õ¥¡¥¤¥ë¤òºîÀ®¤¹¤ë
.\"O .SH SYNOPSIS
.SH ½ñ¼°
.nf
.\"O .B #include <fcntl.h>           /* Definition of AT_* constants */
.B #include <fcntl.h>           /* AT_* Äê¿ô¤ÎÄêµÁ */
.B #include <sys/stat.h>
.sp
.BI "int mknodat(int " dirfd ", const char *" pathname ", mode_t " mode \
", dev_t " dev );
.fi
.sp
.in -4n
.\"O Feature Test Macro Requirements for glibc (see
.\"O .BR feature_test_macros (7)):
glibc ¸þ¤±¤Îµ¡Ç½¸¡ºº¥Þ¥¯¥í¤ÎÍ×·ï
.RB ( feature_test_macros (7)
»²¾È):
.in
.sp
.BR mknodat ():
.PD 0
.ad l
.RS 4
.TP 4
.\"O Since glibc 2.10:
glibc 2.10 °Ê¹ß:
_XOPEN_SOURCE\ >=\ 700
.\" Other FTM combinations will also expose mknodat(), but this function was
.\" added in SUSv4, marked XSI, so we'll just document what the standard says
.TP 4
.\"O Before glibc 2.10:
glibc 2.10 ¤è¤êÁ°:
_ATFILE_SOURCE
.RE
.ad
.PD
.\"O .SH DESCRIPTION
.SH ÀâÌÀ
.\"O The
.\"O .BR mknodat ()
.\"O system call operates in exactly the same way as
.\"O .BR mknod (2),
.\"O except for the differences described in this manual page.
.BR mknodat ()
¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ï¡¢¤³¤Î man ¥Ú¡¼¥¸¤ÇÀâÌÀ¤·¤Æ¤¤¤ë°ã¤¤¤¬¤¢¤ë°Ê³°¤Ï¡¢
.BR mknod (2)
¤ÈÁ´¤¯Æ±¤¸¤è¤¦¤ËÆ°ºî¤¹¤ë¡£

.\"O If the pathname given in
.\"O .I pathname
.\"O is relative, then it is interpreted relative to the directory
.\"O referred to by the file descriptor
.\"O .I dirfd
.\"O (rather than relative to the current working directory of
.\"O the calling process, as is done by
.\"O .BR mknod (2)
.\"O for a relative pathname).
.I pathname
¤Ç»ØÄꤵ¤ì¤ë¥Ñ¥¹Ì¾¤¬ÁêÂХѥ¹Ì¾¤Ç¤¢¤ë¾ì¹ç¡¢
¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿
.I dirfd
¤Ç»²¾È¤µ¤ì¤ë¥Ç¥£¥ì¥¯¥È¥ê¤«¤é¤ÎÁêÂХѥ¹Ì¾¤È¤·¤Æ²ò¼á¤µ¤ì¤ë
.RB ( mknod (2)
¤Ç¤Ï¡¢ÁêÂХѥ¹¤Ï¸Æ¤Ó½Ð¤·¸µ¥×¥í¥»¥¹¤Î
¥«¥ì¥ó¥È¥ï¡¼¥­¥ó¥°¥Ç¥£¥ì¥¯¥È¥ê¤«¤é¤ÎÁêÂХѥ¹¤È¤Ê¤ë)¡£

.\"O If
.\"O .I pathname
.\"O is relative and
.\"O .I dirfd
.\"O is the special value
.\"O .BR AT_FDCWD ,
.\"O then
.\"O .I pathname
.\"O is interpreted relative to the current working
.\"O directory of the calling process (like
.\"O .BR mknod (2)).
.I pathname
¤¬ÁêÂХѥ¹¤Ç¤¢¤ê¡¢¤«¤Ä
.I dirfd
¤¬ÆÃÊ̤ÊÃÍ
.B AT_FDCWD
¤Ç¤¢¤ë¾ì¹ç¡¢
.I pathname
¤Ï
.RB ( mknod (2)
¤ÈƱ¤¸¤è¤¦¤Ë) ¸Æ¤Ó½Ð¤·¸µ¥×¥í¥»¥¹¤Î
¥«¥ì¥ó¥È¥ï¡¼¥­¥ó¥°¥Ç¥£¥ì¥¯¥È¥ê¤«¤é¤ÎÁêÂХѥ¹Ì¾¤È¤·¤Æ²ò¼á¤µ¤ì¤ë¡£

.\"O If
.\"O .I pathname
.\"O is absolute, then
.\"O .I dirfd
.\"O is ignored.
.I pathname
¤¬ÀäÂХѥ¹¤Ç¤¢¤ë¾ì¹ç¡¢
.I dirfd
¤Ï̵»ë¤µ¤ì¤ë¡£
.\"O .SH "RETURN VALUE"
.SH ÊÖ¤êÃÍ
.\"O On success,
.\"O .BR mknodat ()
.\"O returns 0.
À®¸ù¤·¤¿¾ì¹ç¡¢
.BR mknodat ()
¤Ï 0 ¤òÊÖ¤¹¡£
.\"O On error, \-1 is returned and
.\"O .I errno
.\"O is set to indicate the error.
¥¨¥é¡¼¤Î¾ì¹ç¡¢\-1 ¤¬ÊÖ¤µ¤ì¤Æ¡¢
.I errno
¤Ë¤Ï¥¨¥é¡¼¤ò¼¨¤¹Ãͤ¬ÀßÄꤵ¤ì¤ë¡£
.\"O .SH ERRORS
.SH ¥¨¥é¡¼
.\"O The same errors that occur for
.\"O .BR mknod (2)
.\"O can also occur for
.\"O .BR mknodat ().
.BR mknod (2)
¤ÈƱ¤¸¥¨¥é¡¼¤¬
.BR mknodat ()
¤Ç¤âµ¯¤³¤ë¡£
.\"O The following additional errors can occur for
.\"O .BR mknodat ():
.BR mknodat ()
¤Ç¤Ï¡¢¤½¤Î¾¤Ë°Ê²¼¤Î¥¨¥é¡¼¤¬µ¯¤³¤ë:
.TP
.B EBADF
.\"O .I dirfd
.\"O is not a valid file descriptor.
.I dirfd
¤¬Í­¸ú¤Ê¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿¤Ç¤Ê¤¤¡£
.TP
.B ENOTDIR
.\"O .I pathname
.\"O is relative and
.\"O .I dirfd
.\"O is a file descriptor referring to a file other than a directory.
.I pathname
¤¬ÁêÂХѥ¹¤Ç¡¢¤«¤Ä
.I dirfd
¤¬¥Ç¥£¥ì¥¯¥È¥ê°Ê³°¤Î¥Õ¥¡¥¤¥ë¤ò»²¾È¤¹¤ë¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿¤Ç¤¢¤ë¡£
.\"O .SH VERSIONS
.SH ¥Ð¡¼¥¸¥ç¥ó
.\"O .BR mknodat ()
.\"O was added to Linux in kernel 2.6.16.
.BR mknodat ()
¤Ï Linux ¥«¡¼¥Í¥ë 2.6.16 ¤ÇÄɲ䵤줿¡£
.\"O .SH "CONFORMING TO"
.SH ½àµò
POSIX.1-2008.
.\"O .SH NOTES
.SH Ãí°Õ
.\"O See
.\"O .BR openat (2)
.\"O for an explanation of the need for
.\"O .BR mknodat ().
.BR mknodat ()
¤¬É¬ÍפÊÍýͳ¤Ë¤Ä¤¤¤Æ¤Ï¡¢
.BR openat (2)
¤ò»²¾È¤¹¤ë¤³¤È¡£
.\"O .SH "SEE ALSO"
.SH ´ØÏ¢¹àÌÜ
.BR mknod (2),
.BR openat (2),
.BR path_resolution (7)