166 lines
4.9 KiB
Groff
166 lines
4.9 KiB
Groff
.\" Copyright (c) 1980, 1991, 1993, 1994
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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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.\" @(#)chown.2 8.4 (Berkeley) 4/19/94
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.\" %FreeBSD: src/lib/libc/sys/chown.2,v 1.12.2.2 2000/12/29 14:44:52 ru Exp %
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.\"
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.Dd April 19, 1994
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.Dt CHOWN 2
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.Os BSD 4
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.Sh ̾¾Î
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.Nm chown ,
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.Nm fchown ,
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.Nm lchown
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.Nd ¥Õ¥¡¥¤¥ë¤Î½êͼԤȥ°¥ë¡¼¥×¤òÊѹ¹¤¹¤ë
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.Sh ¥é¥¤¥Ö¥é¥ê
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.Lb libc
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.Sh ½ñ¼°
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.Fd #include <unistd.h>
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.Ft int
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.Fn chown "const char *path" "uid_t owner" "gid_t group"
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.Ft int
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.Fn fchown "int fd" "uid_t owner" "gid_t group"
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.Ft int
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.Fn lchown "const char *path" "uid_t owner" "gid_t group"
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.Sh ²òÀâ
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.Fa path
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¤Ç»ØÄꤵ¤ì¤¿¡¢¤Þ¤¿¤Ï
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.Fa fd
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¤Ç»²¾È¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¤Î½êÍ¼Ô ID ¤ª¤è¤Ó¥°¥ë¡¼¥× ID ¤ò¡¢
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°ú¿ô¤Ë»ØÄꤵ¤ì¤¿
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.Fa owner
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¤ª¤è¤Ó
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.Fa group
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¤ËÊѹ¹¤·¤Þ¤¹¡£¥Õ¥¡¥¤¥ë¤Î½êͼԤϡ¢
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.Fa group
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¤Ë¼«Ê¬¤¬½ê°¤·¤Æ¤¤¤ëǤ°Õ¤Î¥°¥ë¡¼¥×¤ò»ØÄê¤Ç¤¤Þ¤¹¡£¤·¤«¤·¡¢
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.Fa owner
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¤òÊѹ¹¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¤Î¤Ï¥¹¡¼¥Ñ¥æ¡¼¥¶¤Î¤ß¤Ç¤¹¡£
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.Pp
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.Fn chown
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¤Ï¡¢¥¹¡¼¥Ñ¥æ¡¼¥¶¤Ë¤è¤Ã¤Æ¼Â¹Ô¤µ¤ì¤ë¾ì¹ç¤ò¤Î¤¾¤¤¤Æ¡¢
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¥Õ¥¡¥¤¥ë¾å¤Î set-user-id ¥Ó¥Ã¥È¤È set-group-id ¥Ó¥Ã¥È¤ò¥¯¥ê¥¢¤·¤Þ¤¹¡£
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¤³¤ì¤Ï¡¢set-user-id ¤¢¤ë¤¤¤Ï set-group-id ¤µ¤ì¤¿¥×¥í¥°¥é¥à¤¬
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¶öÁ³¡¢¤Þ¤¿¤Ï¤¤¤¿¤º¤é¤ÇºîÀ®¤µ¤ì¤ë¤Î¤òËɻߤ¹¤ë¤¿¤á¤Ç¤¹¡£
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.Fn chown
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¤Ï¡¢¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤ò¤¿¤É¤ê¡¢
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¥ê¥ó¥¯¼«ÂΤǤϤʤ¯¥ê¥ó¥¯¤Î¥¿¡¼¥²¥Ã¥È¤ËºîÍѤ·¤Þ¤¹¡£
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.Pp
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.Fn fchown
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¤¬ÆäËÊØÍø¤Ê¤Î¤Ï¡¢¥Õ¥¡¥¤¥ë¥í¥Ã¥¥ó¥°¥×¥ê¥ß¥Æ¥£¥Ö¤È¤È¤â¤Ë»ÈÍѤ¹¤ë¤È¤¤Ç¤¹
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.Pf ( Xr flock 2
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¤ò»²¾È)¡£
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.Pp
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.Fn lchown
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¤Ï¡¢
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.Fn chown
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¤ËÎà»÷¤·¤Æ¤¤¤Þ¤¹¤¬¡¢¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤ò¤¿¤É¤ê¤Þ¤»¤ó¡£
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.Pp
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½êÍ¼Ô ID ¤Þ¤¿¤Ï¥°¥ë¡¼¥× ID ¤È¤·¤Æ -1 ¤ò»ØÄꤷ¤¿¾ì¹ç¡¢
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¤½¤Î ID ¤ÏÊѹ¹¤µ¤ì¤Þ¤»¤ó¡£
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.Sh Ìá¤êÃÍ
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Áàºî¤¬Àµ¾ï¤Ë´°Î»¤¹¤ë¤È 0 ¤¬ÊÖ¤µ¤ì¤Þ¤¹¡£
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¥¨¥é¡¼¤¬È¯À¸¤¹¤ë¤È -1 ¤¬ÊÖ¤µ¤ì¡¢¸ÇͤΥ¨¥é¡¼¥³¡¼¥É¤¬
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¥°¥í¡¼¥Ð¥ëÊÑ¿ô
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.Va errno
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¤ËÀßÄꤵ¤ì¤Þ¤¹¡£
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.Sh ¥¨¥é¡¼
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.Fn chown
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¤È
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.Fn lchown
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¤Ï¡¢¼¡¤Î¾ì¹ç¤Ë½èÍý¤ò¼ºÇÔ¤·¤Æ¡¢¥Õ¥¡¥¤¥ë¤ÏÊѹ¹¤µ¤ì¤Þ¤»¤ó¡£
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.Bl -tag -width Er
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.It Bq Er ENOTDIR
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¥Ñ¥¹¤Î¹½À®Í×ÁÇÃæ¤Ë¥Ç¥£¥ì¥¯¥È¥ê°Ê³°¤Î¤â¤Î¤¬´Þ¤Þ¤ì¤Æ¤¤¤Þ¤¹¡£
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.It Bq Er ENAMETOOLONG
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¥Ñ¥¹Ì¾¤Î¹½À®Í×ÁǤ¬ 255 ʸ»ú¤ò±Û¤¨¤Æ¤¤¤ë¤«¡¢
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¤Þ¤¿¤Ï¥Ñ¥¹Ì¾Á´ÂΤ¬ 1023 ʸ»ú¤ò±Û¤¨¤Æ¤¤¤Þ¤¹¡£
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.It Bq Er ENOENT
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»ØÄꤵ¤ì¤¿¥Õ¥¡¥¤¥ë¤¬Â¸ºß¤·¤Þ¤»¤ó¡£
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.It Bq Er EACCES
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»ØÄꤵ¤ì¤¿¥Ñ¥¹¤Ë¤Ï¡¢¸¡º÷¤¬µö²Ä¤µ¤ì¤Æ¤¤¤Ê¤¤¥Ç¥£¥ì¥¯¥È¥ê¤¬´Þ¤Þ¤ì¤Æ¤¤¤Þ¤¹¡£
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.It Bq Er ELOOP
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¥Ñ¥¹Ì¾¤òÊÑ´¹¤¹¤ë¤È¤¤Ë¸¡½Ð¤µ¤ì¤¿¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤¬Â¿¤¹¤®¤Þ¤¹¡£
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.It Bq Er EPERM
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¼Â¸ú¥æ¡¼¥¶ ID ¤¬¥¹¡¼¥Ñ¥æ¡¼¥¶¤Ç¤¢¤ê¤Þ¤»¤ó¡£
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.It Bq Er EROFS
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»ØÄꤵ¤ì¤¿¥Õ¥¡¥¤¥ë¤ÏÆɼè¤êÀìÍÑ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¾å¤Ë¤¢¤ê¤Þ¤¹¡£
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.It Bq Er EFAULT
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.Fa path
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¤Ï¡¢¥×¥í¥»¥¹¤Ë³ä¤êÅö¤Æ¤é¤ì¤¿¥¢¥É¥ì¥¹¶õ´Ö¤ÎÈϰϳ°¤ò»Ø¤·¤Æ¤¤¤Þ¤¹¡£
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.It Bq Er EIO
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¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ËÆɤ߽ñ¤¤·¤Æ¤¤¤ë´Ö¤ËÆþ½ÐÎÏ¥¨¥é¡¼¤¬È¯À¸¤·¤Þ¤·¤¿¡£
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.El
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.Pp
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.Fn Fchown
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¤Ï¼¡¤Î¾ì¹ç¤Ë¼ºÇÔ¤·¤Þ¤¹¡£
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.Bl -tag -width Er
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.It Bq Er EBADF
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.Fa fd
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¤¬Í¸ú¤Êµ½Ò»Ò¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡£
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.It Bq Er EINVAL
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.Fa fd
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¤¬¥Õ¥¡¥¤¥ë¤Ç¤Ï¤Ê¤¯¥½¥±¥Ã¥È¤ò»²¾È¤·¤Æ¤¤¤Þ¤¹¡£
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.It Bq Er EPERM
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¼Â¸ú¥æ¡¼¥¶ ID ¤¬¥¹¡¼¥Ñ¥æ¡¼¥¶¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡£
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.It Bq Er EROFS
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»ØÄê¤Î¥Õ¥¡¥¤¥ë¤ÏÆɼè¤êÀìÍÑ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ë¾ïÃ󤷤Ƥ¤¤Þ¤¹¡£
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.It Bq Er EIO
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¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ËÆɤ߽ñ¤¤·¤Æ¤¤¤ë´Ö¤ËÆþ½ÐÎÏ¥¨¥é¡¼¤¬È¯À¸¤·¤Þ¤·¤¿¡£
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.El
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.Sh ´ØÏ¢¹àÌÜ
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.Xr chgrp 1 ,
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.Xr chmod 2 ,
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.Xr flock 2 ,
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.Xr chown 8
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.Sh µ¬³Ê
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.Fn chown
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´Ø¿ô¤Ï
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.St -p1003.1-90
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¤Ë½àµò¤·¤Æ¤¤¤Þ¤¹¡£
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.Sh Îò»Ë
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.Fn chown
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´Ø¿ô¤Ï
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.At v7
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¤ÇÅо줷¤Þ¤·¤¿¡£
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.Fn fchown
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´Ø¿ô¤Ï
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.Bx 4.2
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¤ÇÅо줷¤Þ¤·¤¿¡£
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.Pp
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.Fn chown
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´Ø¿ô¤Ï
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.Bx 4.4
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¤Ç¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤ò¤¿¤É¤ë¤è¤¦¤ËÊѹ¹¤µ¤ì¤Þ¤·¤¿¡£
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.Fn lchown
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´Ø¿ô¤Ï¡¢µ¡Ç½¤Î·çÍî¤òÊä½¼¤¹¤ë¤¿¤á¤Ë
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.Fx 3.0
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¤ÇÄɲ䵤ì¤Þ¤·¤¿¡£
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