1 .\" Copyright (c) 1993 Michael Haardt (u31b3hs@pool.informatik.rwth-aachen.de)
2 .\" and copyright (c) 1999 Andries Brouwer (aeb@cwi.nl)
3 .\" and copyright (c) 2006 Justin Pryzby <justinpryzby@users.sf.net>
4 .\" and copyright (c) 2006 Michael Kerrisk <mtk.manpages@gmail.com>
6 .\" This is free documentation; you can redistribute it and/or
7 .\" modify it under the terms of the GNU General Public License as
8 .\" published by the Free Software Foundation; either version 2 of
9 .\" the License, or (at your option) any later version.
11 .\" The GNU General Public License's references to "object code"
12 .\" and "executables" are to be interpreted as the output of any
13 .\" document formatting or typesetting system, including
14 .\" intermediate and printed output.
16 .\" This manual is distributed in the hope that it will be useful,
17 .\" but WITHOUT ANY WARRANTY; without even the implied warranty of
18 .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 .\" GNU General Public License for more details.
21 .\" You should have received a copy of the GNU General Public
22 .\" License along with this manual; if not, write to the Free
23 .\" Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
26 .\" Modified Sun Jul 25 11:02:22 1993 by Rik Faith (faith@cs.unc.edu)
27 .\" 2006-05-24, Justin Pryzby <justinpryzby@users.sf.net>
28 .\" document FTW_ACTIONRETVAL; include .SH "RETURN VALUE";
29 .\" 2006-05-24, Justin Pryzby <justinpryzby@users.sf.net> and
30 .\" Michael Kerrisk <mtk.manpages@gmail.com>
31 .\" reorganized and rewrote much of the page
32 .\" 2006-05-24, Michael Kerrisk <mtk.manpages@gmail.com>
33 .\" Added an example program.
35 .\" Japanese Version Copyright (c) 1998 NAKANO Takeo all rights reserved.
36 .\" Translated 1998-04-28, NAKANO Takeo <nakano@apm.seikei.ac.jp>
37 .\" Updated & Modified 1999-09-14, NAKANO Takeo <nakano@apm.seikei.ac.jp>
38 .\" Updated & Modified 2005-11-04, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
39 .\" Updated 2006-07-26, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v2.36
41 .\" WORD: file descriptor ¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼
43 .TH FTW 3 2010-09-20 "Linux" "Linux Programmer's Manual"
45 ftw, nftw \- ¥Õ¥¡¥¤¥ë¥Ä¥ê¡¼¤òÊ⤤ޤï¤ë
50 .BI "int ftw(const char *" dirpath ,
51 .BI " int (*" fn ") (const char *" fpath ", const struct stat *" sb ,
52 .BI " int " typeflag ),
53 .BI " int " nopenfd );
55 .B #define _XOPEN_SOURCE 500
58 .BI "int nftw(const char *" dirpath ,
59 .BI " int (*" fn ") (const char *" fpath ", const struct stat *" sb ,
60 .BI " int " typeflag ", struct FTW *" ftwbuf ),
61 .BI " int " nopenfd ", int " flags );
67 ¤Ç»ØÄꤵ¤ì¤¿¥Ç¥£¥ì¥¯¥È¥ê°Ê²¼¤Î¥Ç¥£¥ì¥¯¥È¥ê¥Ä¥ê¡¼Á´ÂΤòÊ⤤ޤï¤ê¡¢
68 ¥Ä¥ê¡¼Ãæ¤Ç¥¨¥ó¥È¥ê¤¬¸«ÉÕ¤«¤ë¤´¤È¤Ë¡¢
71 ¥Ç¥Õ¥©¥ë¥È¤Ç¤Ï¡¢¥Ç¥£¥ì¥¯¥È¥ê¤½¤Î¤â¤Î¤¬¡¢¤½¤Î¥Ç¥£¥ì¥¯¥È¥ê¤Ë¤¢¤ë¥Õ¥¡¥¤¥ë¤ä
72 ¥µ¥Ö¥Ç¥£¥ì¥¯¥È¥ê¤è¤ê¤âÀè¤Ë½èÍý¤µ¤ì¤ë (¹Ô¤¤¬¤±½çõº÷; preorder traversal)¡£
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75 ¤·¤Þ¤ï¤Ê¤¤¤è¤¦¤Ë¤¹¤ë¤¿¤á¡¢
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118 ¹½Â¤ÂΤؤΥݥ¤¥ó¥¿¤Ç¤¢¤ë¡£
120 ¤ÏÀ°¿ô¤Ç¡¢°Ê²¼¤ÎÃͤΤ¤¤º¤ì¤«°ì¤Ä¤Ç¤¢¤ë:
124 ¤¬Ä̾ï¤Î¥Õ¥¡¥¤¥ë¤Ç¤¢¤ë
132 ¤¬Æɤ߹þ¤ß¤Ç¤¤Ê¤¤¥Ç¥£¥ì¥¯¥È¥ê¤Ç¤¢¤ë
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142 ¤¬¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Ç¡¢¤«¤Ä
150 ¤ËÅϤµ¤ì¤ë¤«¤Ï̤ÄêµÁ¤Ç¤¢¤ë¤È¡¢POSIX.1-2001 ¤Ë¤Ï½ñ¤«¤ì¤Æ¤¤¤ë¡£
152 ¥Ä¥ê¡¼¤Îõº÷¤ò»ß¤á¤¿¤¤¾ì¹ç¤Ï¡¢
154 ¤¬ 0 °Ê³°¤ÎÃͤòÊÖ¤»¤ÐÎɤ¤
157 ¼«¿È¤ÎÌá¤êÃͤȤʤë)¡£
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163 ¤Î¼ºÇԤʤɤÎ) ¥¨¥é¡¼¤¬µ¯¤³¤ë¤È \-1 ¤òÊÖ¤¹¡£
166 ¤ÏưŪ¤Ê¥Ç¡¼¥¿¹½Â¤¤òÍѤ¤¤ë¤Î¤Ç¡¢¥Ä¥ê¡¼Ãµº÷¤ò°ÂÁ´¤ËÃæÃǤ¹¤ëÍ£°ì¤ÎÊýË¡¤Ï
169 ¤ÎÊÖ¤êÃͤȤ¹¤ë¤³¤È¤Ç¤¢¤ë¡£³ä¤ê¹þ¤ß¤ò°·¤¦¤Ë¤Ï¡¢
170 Î㤨¤ÐȯÀ¸¤·¤¿³ä¤ê¹þ¤ß¤ò¥Þ¡¼¥¯¤·¤Æ¤ª¤¤¤Æ¡¢ 0 °Ê³°¤ÎÃͤòÊÖ¤¹¤è¤¦¤Ë¤¹¤ë
171 ¥·¥°¥Ê¥ë¤Ë¤è¤ê¥á¥â¥ê¥ê¡¼¥¯¤òµ¯¤³¤µ¤º¤Ëõº÷¤ò½ªÎ»¤Ç¤¤ë¤è¤¦¤Ë¤¹¤ë¤Ë¤Ï¡¢
174 ¤¬¥Á¥§¥Ã¥¯¤¹¤ë¥°¥í¡¼¥Ð¥ë¤Ê¥Õ¥é¥°¤ò¥»¥Ã¥È¤¹¤ë¤è¤¦¤Ë¤¹¤ì¤Ð¤è¤¤¡£
175 ¥×¥í¥°¥é¥à¤ò½ªÎ»¤µ¤»¤ë¾ì¹ç°Ê³°¤Ï¡¢
189 ¤¬Äɲ䵤ì¤ëÅÀ¤¬°Û¤Ê¤ë¡£
193 °ú¤¿ô¤Ï²¼µ¤Î¥Õ¥é¥°¤Î 0 ¸Ä°Ê¾å¤ÎÏÀÍýϤò¼è¤Ã¤¿¤â¤Î¤Ç¤¢¤ë:
195 .BR FTW_ACTIONRETVAL " (glibc 2.3.3 °Ê¹ß)"
196 ¤³¤Î¥Õ¥é¥°¤Ï glibc ¸ÇͤǤ¢¤ë¡£
197 ¤³¤Î¥Õ¥é¥°¤ò¥»¥Ã¥È¤¹¤ë¤È¡¢
201 ¤ÎÊÖ¤êÃͤΰ·¤¤¤¬ÊѤï¤ë¡£
203 ¤Ï°Ê²¼¤ÎÃͤΤ¤¤º¤ì¤«°ì¤Ä¤òÊÖ¤¹É¬Íפ¬¤¢¤ë¡£
208 ¤ÏÄ̾ïÄ̤ê½èÍý¤ò³¤±¤ë¡£
212 ¤¬¤³¤ÎÃͤòÊÖ¤·¤¿¾ì¹ç¡¢½èÍýÃæ¤Î¥¨¥ó¥È¥ê¤Î·»Äï (Ʊ¤¸³¬ÁؤΥ¨¥ó¥È¥ê)
213 ¤Î½èÍý¤Ï¥¹¥¥Ã¥×¤µ¤ì¡¢¿Æ¥Ç¥£¥ì¥¯¥È¥ê¤Ç³¤¤Î½èÍý¤¬¹Ô¤ï¤ì¤ë¡£
214 .\" If \fBFTW_DEPTH\fP
215 .\" is set, the entry's parent directory is processed next (with
216 .\" \fIflag\fP set to \fBFTW_DP\fP).
220 ¤¬¸Æ¤Ó½Ð¤µ¤ì¤¿¥¨¥ó¥È¥ê¤¬¥Ç¥£¥ì¥¯¥È¥ê
224 ¤Î¾ì¹ç¤Ë¡¢¤³¤ÎÃͤòÊÖ¤¹¤È
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228 ¤Ï½èÍýÃæ¤Î¥Ç¥£¥ì¥¯¥È¥ê¤Î·»Äï (Ʊ¤¸³¬ÁؤΥ¨¥ó¥È¥ê) ¤«¤é½èÍý¤ò³¤±¤ë¡£
236 ¾¤ÎÊÖ¤êÃͤϾÍè¿·¤·¤¤Æ°ºî¤ËÂбþÉÕ¤±¤é¤ì¤ë²ÄǽÀ¤¬¤¢¤ë¡£
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243 ¤ÎÄêµÁ¤¬Í¸ú¤Ë¤¹¤ë¤¿¤á¤Ë¤Ï¡¢
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264 ÂФ¹¤ë½èÍý¤Î¡Ö¸å¤Ç¡×¹Ô¤ï¤ì¤ë
265 (¥Ç¥Õ¥©¥ë¥È¤Ç¤Ï¡¢¥Ç¥£¥ì¥¯¥È¥ê¼«¿È¤Î½èÍý¤Ï¥Ç¥£¥ì¥¯¥È¥êÆâ¤Î¥¨¥ó¥È¥ê
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274 Ä̾ï˾¤Þ¤·¤¤Æ°ºî¤À¤í¤¦)¡£¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤Ê¤¤¤È¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤ò
275 é¤ë¤¬¡¢Æ±¤¸¥Õ¥¡¥¤¥ë¤¬Æó²óÊó¹ð¤µ¤ì¤ë¤³¤È¤Ï¤Ê¤¤¡£
280 ¤¬¥»¥Ã¥È¤µ¤ì¤ë¤È¡¢¼«Ê¬¼«¿È¤ËÂФ¹¤ë¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤òÇÛ²¼¤Ë»ý¤Ä
283 ¤¬¸Æ¤Ó½Ð¤µ¤ì¤ë¤³¤È¤Ï·è¤·¤Æ¤Ê¤¤¡£
285 ¥Ç¥£¥ì¥¯¥È¥ê¥Ä¥ê¡¼¤Î¥¨¥ó¥È¥êËè¤Ë¡¢
299 ¤Ç¼è¤êÆÀ¤ëÃͤΤ¤¤º¤ì¤«¡¢¤Þ¤¿¤Ï°Ê²¼¤ÎÃͤΤ¤¤º¤ì¤«¤¬ÅϤµ¤ì¤ë:
303 ¤¬¥Ç¥£¥ì¥¯¥È¥ê¤Ç¡¢¤«¤Ä
309 ÇÛ²¼¤Î¥Õ¥¡¥¤¥ë¤È¥µ¥Ö¥Ç¥£¥ì¥¯¥È¥ê¤ÏÁ´¤Æ½èÍý¤¬½ª¤ï¤Ã¤Æ¤¤¤ë¡£
313 ¤¬¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Ç¡¢¤«¤Ä \fBFTW_PHYS\fP ¤¬ \fIflags\fP ¤Ë
315 .\" To obtain the definition of this constant from
319 .\" must be defined, or
320 .\" .BR _XOPEN_SOURCE
321 .\" must be defined with a value of 500 or more.
325 ¤¬¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Ç¡¢Â¸ºß¤·¤Ê¤¤¥Õ¥¡¥¤¥ë¤ò»Ø¤·¤Æ¤¤¤ë
326 (¤³¤ì¤¬¥»¥Ã¥È¤µ¤ì¤ë¤Î¤Ï
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333 ¤ò¸Æ¤Ó½Ð¤¹ºÝ¤ËÅϤ¹ 4¤Ä¤á¤Î°ú¤¿ô¤Ï
347 ¤Ï¡¢¥Õ¥¡¥¤¥ë̾ (basename Í×ÁÇ) ¤Î¡¢
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351 ¤Ï¥Ç¥£¥ì¥¯¥È¥ê¥Ä¥ê¡¼¤Ç¤Î
353 ¤Î¿¼¤µ¤ò¼¨¤¹¡£¿¼¤µ¤Ï¥Ç¥£¥ì¥¯¥È¥ê¥Ä¥ê¡¼¤Î¥È¥Ã¥× (root) ¤«¤é¤Î
358 ¤³¤ì¤é¤Î´Ø¿ô¤Ï¡¢À®¸ù¤¹¤ë¤È 0 ¤ò¡¢¥¨¥é¡¼¤¬È¯À¸¤¹¤ë¤È \-1 ¤òÊÖ¤¹¡£
361 ¤¬ 0 °Ê³°¤òÊÖ¤·¤¿¾ì¹ç¡¢¥Ç¥£¥ì¥¯¥È¥ê¥Ä¥ê¡¼¤Îõº÷¤ò½ªÎ»¤·¡¢
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374 ¤¬»ÈÍѤǤ¤ë¡¢Èó 0 ¤ÎÃͤÏ
379 ¤ÎÊÖ¤êÃͤȤ·¤ÆÊÖ¤µ¤ì¤ë¡£
381 POSIX.1-2001, SVr4, SUSv1.
384 ¤òÇÑ»ßͽÄê¤È¤·¤Æ¤¤¤ë¡£
386 POSIX.1-2001 ¤ÎÃíµ¤Ë¤è¤ë¤È¡¢
388 ¤¬¥«¥ì¥ó¥È¥ï¡¼¥¥ó¥°¥Ç¥£¥ì¥¯¥È¥ê¤òÊÝ»ý¤·¤Ê¤«¤Ã¤¿¾ì¹ç¤Î
389 ·ë²Ì¤Ïµ¬Äꤵ¤ì¤Æ¤¤¤Ê¤¤¤È¤µ¤ì¤Æ¤¤¤ë¡£
396 ¤Ï¡¢SUSv1 ¤ÇƳÆþ¤µ¤ì¤¿¡£
401 ¤ò°ìÀڻȤï¤Ê¤¤¥·¥¹¥Æ¥à¤ä¡¢
402 ¸ºß¤·¤Ê¤¤¥Õ¥¡¥¤¥ë¤ò»Ø¤·¤Æ¤¤¤ë¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Î¾ì¹ç¤Ë¤Î¤ß
406 ¤¬Á´¤Æ¤Î¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤ËÂФ·¤Æ
408 ¤ò»È¤¦¥·¥¹¥Æ¥à¤â¤¢¤ë¡£
409 ͽ¬²Äǽ¤ÊÆ°ºî¤ò¤µ¤»¤ë¤¿¤á¤Ë¤Ï¡¢
413 Linux ¤Ç¤Ï¡¢ libc4, libc5, glibc 2.0.6 ¤Ï
414 ¡Östat ¤Ç¤¤ë¤¬¥Ç¥£¥ì¥¯¥È¥ê¤Ç¤Ï¤Ê¤¤¥ª¥Ö¥¸¥§¥¯¥È¡×
415 (¥Õ¥¡¥¤¥ë, ¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯, fifo Åù)
421 ´Ø¿ô¤Ï glibc 2.1 °Ê¹ß¤ÇÍøÍѤǤ¤ë¡£
424 ¤Ï glibc ¸ÇͤǤ¢¤ë¡£
426 °Ê²¼¤Î¥×¥í¥°¥é¥à¤Ï¡¢°ì¤ÄÌܤΥ³¥Þ¥ó¥É¥é¥¤¥ó°ú¤¿ô¤ò̾Á°¤Ë»ý¤Ä¥Ñ¥¹°Ê²¼¤Î
427 ¥Ç¥£¥ì¥¯¥È¥ê¥Ä¥ê¡¼¤òõº÷¤¹¤ë¡£°ú¤¿ô¤¬»ØÄꤵ¤ì¤Ê¤«¤Ã¤¿¾ì¹ç¤Ï¡¢
428 ¥«¥ì¥ó¥È¥Ç¥£¥ì¥¯¥È¥ê°Ê²¼¤òõº÷¤¹¤ë¡£
429 ³Æ¡¹¤Î¥Õ¥¡¥¤¥ë¤Ë¤Ä¤¤¤ÆÍÍ¡¹¤Î¾ðÊó¤¬É½¼¨¤µ¤ì¤ë¡£
430 ÆóÈÖÌܤΥ³¥Þ¥ó¥É¥é¥¤¥ó°ú¤¿ô¤Ëʸ»ú¤ò»ØÄꤹ¤ë¤³¤È¤Ç¡¢
434 °ú¤¿ô¤ËÅϤ¹ÃͤòÀ©¸æ¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
437 #define _XOPEN_SOURCE 500
445 display_info(const char *fpath, const struct stat *sb,
446 int tflag, struct FTW *ftwbuf)
448 printf("%\-3s %2d %7jd %\-40s %d %s\\n",
449 (tflag == FTW_D) ? "d" : (tflag == FTW_DNR) ? "dnr" :
450 (tflag == FTW_DP) ? "dp" : (tflag == FTW_F) ? "f" :
451 (tflag == FTW_NS) ? "ns" : (tflag == FTW_SL) ? "sl" :
452 (tflag == FTW_SLN) ? "sln" : "???",
453 ftwbuf\->level, (intmax_t) sb\->st_size,
454 fpath, ftwbuf\->base, fpath + ftwbuf\->base);
455 return 0; /* To tell nftw() to continue */
459 main(int argc, char *argv[])
463 if (argc > 2 && strchr(argv[2], \(aqd\(aq) != NULL)
465 if (argc > 2 && strchr(argv[2], \(aqp\(aq) != NULL)
468 if (nftw((argc < 2) ? "." : argv[1], display_info, 20, flags)
480 .BR feature_test_macros (7)