1 .\" Copyright (C) 1995, Thomas K. Dyas <tdyas@eden.rutgers.edu>
3 .\" Permission is granted to make and distribute verbatim copies of this
4 .\" manual provided the copyright notice and this permission notice are
5 .\" preserved on all copies.
7 .\" Permission is granted to copy and distribute modified versions of this
8 .\" manual under the conditions for verbatim copying, provided that the
9 .\" entire resulting derived work is distributed under the terms of a
10 .\" permission notice identical to this one.
12 .\" Since the Linux kernel and libraries are constantly changing, this
13 .\" manual page may be incorrect or out-of-date. The author(s) assume no
14 .\" responsibility for errors or omissions, or for damages resulting from
15 .\" the use of the information contained herein. The author(s) may not
16 .\" have taken the same level of care in the production of this manual,
17 .\" which is licensed free of charge, as they might when working
20 .\" Formatted or processed versions of this manual, if unaccompanied by
21 .\" the source, must acknowledge the copyright and authors of this work.
23 .\" Created Wed Aug 9 1995 Thomas K. Dyas <tdyas@eden.rutgers.edu>
25 .\" Japanese Version Copyright (c) 1997 HANATAKA Shinya
26 .\" all rights reserved.
27 .\" Translated Tue Mar 4 00:03:08 JST 1997
28 .\" by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
29 .\" Updated & Modified Sat Jun 2 20:46:34 JST 2001
30 .\" by Yuichi SATO <ysato@h4.dion.ne.jp>
32 .\"WORD: file system ¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à
33 .\"WORD: kernel ¥«¡¼¥Í¥ë
34 .\"WORD: identifier string ¼±ÊÌʸ»úÎó
35 .\"WORD: type index ·¿¥¤¥ó¥Ç¥Ã¥¯¥¹
37 .TH SYSFS 2 1995-08-09 "Linux" "Linux Programmer's Manual"
40 .\"O sysfs \- get file system type information
41 sysfs \- ¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à (file system) ¤Î¾ðÊó¤ò¼èÆÀ¤¹¤ë
44 .BI "int sysfs(int " option ", const char *" fsname );
46 .BI "int sysfs(int " option ", unsigned int " fs_index ", char *" buf );
48 .BI "int sysfs(int " option );
52 .\"O returns information about the file system types currently present in
54 .\"O The specific form of the
56 .\"O call and the information returned depends on the
60 ¤Ï¸½ºß¥«¡¼¥Í¥ë (kernel) ¤Ë¸ºß¤·¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Î·¿ (type) ¾ðÊó¤òÊÖ¤¹¡£
63 ¥³¡¼¥ë¤Î·Á¼°¤ÈÊÖ¤µ¤ì¤ë¾ðÊó¤Ï
65 ¤Ë°Í¸¤·¤Æ¤ª¤ê¡¢¤½¤ì¤Ï:
68 .\"O Translate the file-system identifier string
70 .\"O into a file-system type index.
71 ¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¼±ÊÌʸ»úÎó (identifier string)
73 ¤ò¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Î·¿¥¤¥ó¥Ç¥Ã¥¯¥¹ (type index) ¤ËËÝÌõ¤¹¤ë¡£
76 .\"O Translate the file-system type index
78 .\"O into a null-terminated file-system identifier string.
80 .\"O be written to the buffer pointed to by
84 .\"O has enough space to accept the string.
85 ¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Î·¿¥¤¥ó¥Ç¥Ã¥¯¥¹
87 ¤ò NULL ½ªÃ¼¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¼±ÊÌʸ»úÎó¤ËËÝÌõ¤¹¤ë¡£
90 ¤Ç»ØÄꤵ¤ì¤¿¥Ð¥Ã¥Õ¥¡¡¼¤Ø½ñ¤¹þ¤Þ¤ì¤ë¡£
92 ¤Ëʸ»úÎó¤òÆþ¤ì¤ë¤À¤±¤Î½½Ê¬¤ÊÍÆÎ̤¬¤¢¤ë¤³¤È¤ò³Î¤«¤á¤ë¤³¤È¡£
95 .\"O Return the total number of file system types currently present in the
97 ¸½ºß¥«¡¼¥Í¥ë¤Ë¸ºß¤¹¤ë¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à·¿¤Î¿ô¤Î¹ç·×¤òÊÖ¤¹¡£
99 .\"O The numbering of the file-system type indexes begins with zero.
100 ¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Î·¿¥¤¥ó¥Ç¥Ã¥¯¥¹¤Î¿ô¤Ï¥¼¥í¤«¤é»Ï¤Þ¤ë¡£
101 .\"O .SH "RETURN VALUE"
105 .\"O returns the file-system index for option
109 .\"O and the number of currently configured file systems for option
117 ¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Î¥¤¥ó¥Ç¥Ã¥¯¥¹¤òÊÖ¤¹¡£
123 ¤Ï¸½ºßÀßÄꤵ¤ì¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Î¿ô¤òÊÖ¤¹¡£
124 .\"O On error, \-1 is returned, and
126 .\"O is set appropriately.
127 ¥¨¥é¡¼¤Î¾ì¹ç¤Ï¡¢\-1 ¤¬ÊÖ¤µ¤ì¡¢
134 .\"O .RI "Either " fsname " or " buf
135 .\"O is outside your accessible address space.
136 .RI fsname " ¤È " buf
137 ¤Î¤É¤Á¤é¤«¤¬¥¢¥¯¥»¥¹²Äǽ¤Ê¥¢¥É¥ì¥¹¶õ´Ö¤Î³°¤Ë¤¢¤ë¡£
141 .\"O is not a valid file-system type identifier;
143 .\"O is out-of-bounds;
147 ¤¬Àµ¤·¤¤¥Õ¥¡¥¤¥ë¡¦¥·¥¹¥Æ¥à¤Î·¿¼±Ê̻ҤǤϤʤ¤;
152 .\"O .SH "CONFORMING TO"
157 .\"O On Linux with the
159 .\"O file system mounted on
161 .\"O the same information can be derived from
162 .\"O .IR /proc/filesystems .
167 ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ò»È¤Ã¤Æ¡¢
169 ¤è¤êƱ¤¸¾ðÊó¤òÆÀ¤ë¤³¤È¤¬¤Ç¤¤ë¡£
172 .\"O There is no libc or glibc support.
173 .\"O There is no way to guess how large \fIbuf\fP should be.
174 libc ¤Þ¤¿¤Ï glibc ¤Î¥µ¥Ý¡¼¥È¤Ï¸ºß¤·¤Ê¤¤¡£
175 \fIbuf\fP ¤ÎÂ礤µ¤¬¤É¤ì¤À¤±É¬Íפ«¤ò¿ä¬¤¹¤ëÊýË¡¤¬¤Ê¤¤¡£