100 lines
3.4 KiB
Groff
100 lines
3.4 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)readlink.2 8.1 (Berkeley) 6/4/93
|
|
.\" %FreeBSD: src/lib/libc/sys/readlink.2,v 1.13 2002/12/19 09:40:25 ru Exp %
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.Dd June 4, 1993
|
|
.Dt READLINK 2
|
|
.Os
|
|
.Sh ̾¾Î
|
|
.Nm readlink
|
|
.Nd ¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤ÎÃͤòÆɤ߼è¤ë
|
|
.Sh ¥é¥¤¥Ö¥é¥ê
|
|
.Lb libc
|
|
.Sh ½ñ¼°
|
|
.In unistd.h
|
|
.Ft int
|
|
.Fn readlink "const char *path" "char *buf" "int bufsiz"
|
|
.Sh ²òÀâ
|
|
.Fn readlink
|
|
¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ï¡¢
|
|
.Fa bufsiz
|
|
¥µ¥¤¥º¤Ç¤¢¤ë¥Ð¥Ã¥Õ¥¡
|
|
.Fa buf
|
|
Æâ¤Ë¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯
|
|
.Fa path
|
|
¤ÎÆâÍƤòÇÛÃÖ¤·¤Þ¤¹¡£
|
|
.Fn readlink
|
|
¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ï
|
|
.Fa buf
|
|
¤ÎËöÈø¤Ë
|
|
.Dv NUL
|
|
ʸ»ú¤òÄɲä·¤Þ¤»¤ó¡£
|
|
.Sh Ìá¤êÃÍ
|
|
¸Æ¤Ó½Ð¤·¤¬Àµ¾ï¤Ë´°Î»¤·¤¿¾ì¹ç¡¢¥Ð¥Ã¥Õ¥¡Æâ¤ËÇÛÃÖ¤·¤¿Ê¸»ú¿ô¤òÊÖ¤·¤Þ¤¹¡£
|
|
¥¨¥é¡¼¤¬µ¯¤¤¿¾ì¹ç¤Ï -1 ¤òÊÖ¤·¡¢¥¨¥é¡¼¥³¡¼¥É¤¬¥°¥í¡¼¥Ð¥ëÊÑ¿ô
|
|
.Va errno
|
|
¤ËÀßÄꤵ¤ì¤Þ¤¹¡£
|
|
.Sh ¥¨¥é¡¼
|
|
.Fn readlink
|
|
¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ï¼¡¤Î¾ì¹ç¤Ë¼ºÇÔ¤·¤Þ¤¹:
|
|
.Bl -tag -width Er
|
|
.It Bq Er ENOTDIR
|
|
¥Ñ¥¹¤Î¹½À®Í×ÁÇÃæ¤Ë¥Ç¥£¥ì¥¯¥È¥ê°Ê³°¤Î¤â¤Î¤¬´Þ¤Þ¤ì¤Æ¤¤¤Þ¤¹¡£
|
|
.It Bq Er ENAMETOOLONG
|
|
¥Ñ¥¹Ì¾¤Î¹½À®Í×ÁǤ¬ 255 ʸ»ú¤ò±Û¤¨¤Æ¤¤¤ë¤«¡¢
|
|
¤Þ¤¿¤Ï¥Ñ¥¹Ì¾Á´ÂΤ¬ 1023 ʸ»ú¤ò±Û¤¨¤Æ¤¤¤Þ¤¹¡£
|
|
.It Bq Er ENOENT
|
|
»ØÄꤵ¤ì¤¿¥Õ¥¡¥¤¥ë¤¬Â¸ºß¤·¤Þ¤»¤ó¡£
|
|
.It Bq Er EACCES
|
|
»ØÄꤵ¤ì¤¿¥Ñ¥¹¤Ë¤Ï¡¢¸¡º÷¤¬µö²Ä¤µ¤ì¤Æ¤¤¤Ê¤¤¥Ç¥£¥ì¥¯¥È¥ê¤¬´Þ¤Þ¤ì¤Æ¤¤¤Þ¤¹¡£
|
|
.It Bq Er ELOOP
|
|
¥Ñ¥¹Ì¾¤òÊÑ´¹¤¹¤ë¤È¤¤Ë¸¡½Ð¤µ¤ì¤¿¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤¬Â¿¤¹¤®¤Þ¤¹¡£
|
|
.It Bq Er EINVAL
|
|
»ØÄê¤Î¥Õ¥¡¥¤¥ë¤¬¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡£
|
|
.It Bq Er EIO
|
|
¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤«¤éÆɤ߼è¤ë´Ö¤ËÆþ½ÐÎÏ¥¨¥é¡¼¤¬È¯À¸¤·¤Þ¤·¤¿¡£
|
|
.It Bq Er EFAULT
|
|
.Fa buf
|
|
°ú¿ô¤¬¡¢¥×¥í¥»¥¹¤Ë³ä¤êÅö¤Æ¤é¤ì¤¿¥¢¥É¥ì¥¹¶õ´Ö¤ÎÈϰϳ°¤ò»Ø¤·¤Æ¤¤¤Þ¤¹¡£
|
|
.El
|
|
.Sh ´ØÏ¢¹àÌÜ
|
|
.Xr lstat 2 ,
|
|
.Xr stat 2 ,
|
|
.Xr symlink 2 ,
|
|
.Xr symlink 7
|
|
.Sh Îò»Ë
|
|
.Fn readlink
|
|
¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ï
|
|
.Bx 4.2
|
|
¤ÇÅо줷¤Þ¤·¤¿¡£
|