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3 .\" This manpage is Copyright (C) 2006, Michael Kerrisk
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25 .\" Japanese Version Copyright (c) 2006-2007 Yuichi SATO
26 .\" all rights reserved.
27 .\" Translated 2006-10-14 by Yuichi SATO <ysato444@yahoo.co.jp>, LDP v2.39
28 .\" Updated & Modified 2007-01-08 by Yuichi SATO, LDP v2.43
29 .\" Updated 2007-05-04, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
31 .TH FACCESSAT 2 2009-12-13 "Linux" "Linux Programmer's Manual"
34 .\"O faccessat \- check user's permissions of a file relative to a \
35 .\"O directory file descriptor
36 faccessat \- ディレクトリファイルディスクリプタから相対的な位置にある
41 .\"O .B #include <fcntl.h> /* Definition of AT_* constants */
42 .B #include <fcntl.h> /* AT_* 定数の定義 */
43 .B #include <unistd.h>
45 .BI "int faccessat(int " dirfd ", const char *" pathname ", int " \
46 mode ", int " flags );
50 .\"O Feature Test Macro Requirements for glibc (see
51 .\"O .BR feature_test_macros (7)):
53 .RB ( feature_test_macros (7)
62 .\"O Since glibc 2.10:
64 _XOPEN_SOURCE\ >=\ 700 || _POSIX_C_SOURCE\ >=\ 200809L
66 .\"O Before glibc 2.10:
76 .\"O system call operates in exactly the same way as
78 .\"O except for the differences described in this manual page.
80 システムコールは、この man ページで説明している違いがある以外は、
84 .\"O If the pathname given in
86 .\"O is relative, then it is interpreted relative to the directory
87 .\"O referred to by the file descriptor
89 .\"O (rather than relative to the current working directory of
90 .\"O the calling process, as is done by
92 .\"O for a relative pathname).
97 で参照されるディレクトリからの相対パス名として解釈される
99 では、相対パスは呼び出し元プロセスのカレントワーキングディレクトリからの
106 .\"O is the special value
110 .\"O is interpreted relative to the current working
111 .\"O directory of the calling process (like
112 .\"O .BR access (2)).
123 カレントワーキングディレクトリからの相対パス名として解釈される。
127 .\"O is absolute, then
136 .\"O is constructed by ORing together zero or more of the following values:
138 は以下の値を 0 個以上 OR して作られる。
141 .\"O Perform access checks using the effective user and group IDs.
143 .\"O .BR faccessat ()
144 .\"O uses the real IDs (like
145 .\"O .BR access (2)).
146 実効 (effective) ユーザ ID と実効グループ ID を使って、
154 .B AT_SYMLINK_NOFOLLOW
157 .\"O is a symbolic link, do not dereference it:
158 .\"O instead return information about the link itself.
160 がシンボリックリンクの場合は、それを辿るのではなく、
162 .\"O .SH "RETURN VALUE"
164 .\"O On success, (all requested permissions granted)
165 .\"O .BR faccessat ()
167 成功した場合 (全ての要求された許可が得られたら)、
170 .\"O On error, \-1 is returned and
172 .\"O is set to indicate the error.
178 .\"O The same errors that occur for
180 .\"O can also occur for
181 .\"O .BR faccessat ().
186 .\"O The following additional errors can occur for
187 .\"O .BR faccessat ():
193 .\"O is not a valid file descriptor.
198 .\"O Invalid flag specified in
207 .\"O is a file descriptor referring to a file other than a directory.
211 がディレクトリ以外のファイルを参照するファイルディスクリプタである。
214 .\"O .BR faccessat ()
215 .\"O was added to Linux in kernel 2.6.16.
217 は Linux カーネル 2.6.16 で追加された。
218 .\"O .SH "CONFORMING TO"
225 .\"O for an explanation of the need for
226 .\"O .BR faccessat ().
236 .\"O .B AT_SYMLINK_NOFOLLOW
237 .\"O flags are actually implemented within the glibc wrapper function for
238 .\"O .BR faccessat ().
241 .B AT_SYMLINK_NOFOLLOW
244 の glibc ラッパー関数で実際に実装されている。
245 .\"O If either of these flags are specified, then the wrapper function employs
247 .\"O to determine access permissions.
248 これらのフラグのいずれかが指定された場合、
258 .BR path_resolution (7),