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-rw-r--r--lib/xfts.c65
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diff --git a/lib/xfts.c b/lib/xfts.c
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--- a/lib/xfts.c
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-/* xfts.c -- a wrapper for fts_open
-
- Copyright (C) 2003-2012 Free Software Foundation, Inc.
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
-
-/* Written by Jim Meyering. */
-
-#include <config.h>
-
-#include <stdbool.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <assert.h>
-
-#include "xalloc.h"
-#include "xfts.h"
-
-/* Fail with a proper diagnostic if fts_open fails. */
-
-FTS *
-xfts_open (char * const *argv, int options,
- int (*compar) (const FTSENT **, const FTSENT **))
-{
- FTS *fts = fts_open (argv, options | FTS_CWDFD, compar);
- if (fts == NULL)
- {
- /* This can fail in two ways: out of memory or with errno==EINVAL,
- which indicates it was called with invalid bit_flags. */
- assert (errno != EINVAL);
- xalloc_die ();
- }
-
- return fts;
-}
-
-/* When fts_read returns FTS_DC to indicate a directory cycle,
- it may or may not indicate a real problem. When a program like
- chgrp performs a recursive traversal that requires traversing
- symbolic links, it is *not* a problem. However, when invoked
- with "-P -R", it deserves a warning. The fts_options member
- records the options that control this aspect of fts's behavior,
- so test that. */
-bool
-cycle_warning_required (FTS const *fts, FTSENT const *ent)
-{
-#define ISSET(Fts,Opt) ((Fts)->fts_options & (Opt))
- /* When dereferencing no symlinks, or when dereferencing only
- those listed on the command line and we're not processing
- a command-line argument, then a cycle is a serious problem. */
- return ((ISSET (fts, FTS_PHYSICAL) && !ISSET (fts, FTS_COMFOLLOW))
- || (ISSET (fts, FTS_PHYSICAL) && ISSET (fts, FTS_COMFOLLOW)
- && ent->fts_level != FTS_ROOTLEVEL));
-}