147 lines
4.1 KiB
Groff
147 lines
4.1 KiB
Groff
.\" Copyright (c) 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)getcwd.3 8.2 (Berkeley) 12/11/93
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.\" $Id: getcwd.3,v 1.4 2002-05-18 07:12:54 horikawa Exp $
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.\"
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.\" $FreeBSD$
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.Dd November 24, 1997
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.Dt GETCWD 3
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.Os BSD 4.2
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.Sh ̾¾Î
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.Nm getcwd ,
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.Nm getwd
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.Nd ºî¶È¥Ç¥£¥ì¥¯¥È¥ê¤Î¥Ñ¥¹Ì¾¤ò¼èÆÀ
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.Sh ½ñ¼°
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.Fd #include <unistd.h>
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.Ft char *
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.Fn getcwd "char *buf" "size_t size"
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.Ft char *
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.Fn getwd "char *buf"
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.Sh ²òÀâ
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.Fn getcwd
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´Ø¿ô¤Ï¡¢¸½ºß¤Îºî¶È¥Ç¥£¥ì¥¯¥È¥ê¤ÎÀäÂХѥ¹Ì¾¤ò
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.Fa buf
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¤Ç»²¾È¤µ¤ì¤ë¥á¥â¥ê¤Ë¥³¥Ô¡¼¤·¡¢
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.Fa buf
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¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤·¤Þ¤¹¡£
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.Fa size
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°ú¿ô¤Ï¡¢
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.Fa buf
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¤Ç»²¾È¤µ¤ì¤ëÇÛÎó¤Î¥Ð¥¤¥È¿ô¤Ë¤è¤ë¥µ¥¤¥º¤Ç¤¹¡£
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.Pp
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.Fa buf
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¤¬
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.Dv NULL
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¤Î¾ì¹ç¤Ï¡¢¥Ñ¥¹Ì¾¤òÊݸ¤¹¤ë¤Î¤ËɬÍפʤÀ¤±¤Î¶õ´Ö¤¬³ä¤ê¿¶¤é¤ì¤Þ¤¹¡£¤³¤Î¶õ
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´Ö¤Ï¸å¤Ç
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.Xr free 3
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¤Ç¤¤Þ¤¹¡£
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.Pp
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´Ø¿ô
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.Fn getwd
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¤Ï
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.Fn getcwd
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¤ò¸Æ¤Ó½Ð¤¹¸ß´¹À¥ë¡¼¥Á¥ó¤Ç¤¹¡£
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.Fa buf
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°ú¿ô¤ª¤è¤Ó¡¢(¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë
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.Aq Pa sys/param.h
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¤ÇÄêµÁ¤µ¤ì¤¿)
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.Dv MAXPATHLEN
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¤Î¥µ¥¤¥º¤ò»ý¤Á¤Þ¤¹¡£
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.Fa buf
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¤¬¾¯¤Ê¤¯¤È¤â¡¢
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.Dv MAXPATHLEN
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¥Ð¥¤¥È¤ÎŤµ¤ò»ý¤¿¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¤³¤È¤ÏÌÀ¤é¤«¤Ç¤¹¡£
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.Pp
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¤³¤ì¤é¤Î¥ë¡¼¥Á¥ó¤Ï½¾Íè¡¢¤½¤³¤ØÌá¤ë¤¿¤á¤Ëºî¶È¥Ç¥£¥ì¥¯¥È¥ê¤Î̾Á°¤òÊݸ¤¹
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¤ë¥×¥í¥°¥é¥à¤Ë¤è¤Ã¤Æ»ÈÍѤµ¤ì¤Æ¤¤Þ¤·¤¿¡£¤³¤ì¤ò¤è¤ê®¤¯¸í¤ê¤Ê¤¯¿ë¹Ô¤¹¤ë
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¤â¤Î¤È¤·¤Æ¡¢¥«¥ì¥ó¥È¥Ç¥£¥ì¥¯¥È¥ê
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.Pq Ql \&.
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¤ò¥ª¡¼¥×¥ó¤·¡¢
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.Xr fchdir 2
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´Ø¿ô¤ò»È¤Ã¤ÆÌá¤ëÊýË¡¤¬¤¢¤ê¤Þ¤¹¡£
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.Sh Ìá¤êÃÍ
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̵»ö¤Ë´°Î»¤·¤¿¾ì¹ç¤Ï¥Ñ¥¹Ì¾¤Î¥Ý¥¤¥ó¥¿¤¬ÊÖ¤ê¤Þ¤¹¡£¤½¤Î¾¤Î¾ì¹ç¤Ï
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.Dv NULL
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¥Ý¥¤¥ó¥¿¤¬Ê֤ꡢ¥¨¥é¡¼¤ò¼¨¤¹¤¿¤á¥°¥í¡¼¥Ð¥ëÊÑ¿ô
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.Va errno
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¤¬ÀßÄꤵ¤ì¡¢¤µ¤é¤Ë
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.Fn getwd
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¤¬
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.Va errno
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¤Ë´ØÏ¢¤¹¤ë¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸¤ò
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.Fa buf
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¤Ç»²¾È¤µ¤ì¤ë¥á¥â¥ê¤Ë¥³¥Ô¡¼¤·¤Þ¤¹¡£
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.Sh ¥¨¥é¡¼
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.Fn getcwd
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´Ø¿ô¤Ï¼¡¤Î¾ì¹ç¤Ë¼ºÇÔ¤·¤Þ¤¹¡£
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.Bl -tag -width [EACCES]
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.It Bq Er EACCES
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Æɤ߹þ¤ß¤Þ¤¿¤Ï¸¡º÷¥Ñ¡¼¥ß¥Ã¥·¥ç¥ó¤¬¡¢¥Ñ¥¹Ì¾¤Î¹½À®Í×ÁǤΤ¿¤áµñÈݤµ¤ì¤Þ¤·
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¤¿¡£
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.Pp
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.It Bq Er EINVAL
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.Fa size
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°ú¿ô¤¬¥¼¥í¤Ç¤¹¡£
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.It Bq Er ENOENT
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¥Ñ¥¹Ì¾¤Î¹½À®Í×ÁǤ¬¤â¤Ï¤ä¸ºß¤·¤Þ¤»¤ó¡£
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.It Bq Er ENOMEM
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ÍøÍѤǤ¤ë¥á¥â¥ê¤¬½½Ê¬¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡£
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.It Bq Er ERANGE
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.Fa size
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°ú¿ô¤Ï¥¼¥í¤è¤ê¤âÂ礤¤¤¬¡¢¥Ñ¥¹Ì¾ + 1
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¤è¤ê¤â¾®¤µ¤¤¤Î¤ÇÉÔÅö¤Ç¤¹¡£
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.El
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.Sh ´ØÏ¢¹àÌÜ
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.Xr chdir 2 ,
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.Xr fchdir 2 ,
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.Xr malloc 3 ,
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.Xr strerror 3
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.Pp
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.Sh µ¬³Ê
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.Fn getcwd
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´Ø¿ô¤Ï¡¢
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.St -ansiC
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¤Ë½àµò¤·¤Æ¤¤¤Þ¤¹¡£
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.Dv NULL
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¥Ý¥¤¥ó¥¿¤ò»ØÄꤷ¤Æ¡¢É¬Íפ˱þ¤¸¤Æ
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.Fn getcwd
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¤Ë¥á¥â¥ê¤ò³ä¤ê¿¶¤ëµ¡Ç½¤Ï³ÈÄ¥Éôʬ¤Ç¤¹¡£
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.Sh Îò»Ë
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.Fn getwd
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´Ø¿ô¤Ï
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.Bx 4.0
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¤ÇºÇ½é¤Ë¼è¤êÆþ¤ì¤é¤ì¤Þ¤·¤¿¡£
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.Sh ¥Ð¥°
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.Fn getwd
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´Ø¿ô¤Ï¥¨¥é¡¼¥Á¥Ã¥¯¤ò½½Ê¬¤Ë¹Ô¤¤¤Þ¤»¤ó¡£Èó¾ï¤ËŤ¤¥Ñ¥¹Ì¾¤Ï¡¢Í¸ú¤Ç¤âÊÖ¤¹
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¤³¤È¤¬¤Ç¤¤Þ¤»¤ó¡£¸ß´¹À¤ò¹Í¤¨¤ë¾å¤ÇÃí°Õ¤¬É¬ÍפǤ¹¡£
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