/* Traverse a file hierarchy.
- Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ 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 2, or (at your option)
- any later version.
+ 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
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, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/*-
* Copyright (c) 1990, 1993, 1994
# define DT_MUST_BE(d, t) false
#endif
-enum
+enum Fts_stat
{
FTS_NO_STAT_REQUIRED = 1,
FTS_STAT_REQUIRED = 2
# define HAVE_OPENAT_SUPPORT 0
#endif
+#ifdef NDEBUG
+# define fts_assert(expr) ((void) 0)
+#else
+# define fts_assert(expr) \
+ do \
+ { \
+ if (!(expr)) \
+ abort (); \
+ } \
+ while (false)
+#endif
+
static FTSENT *fts_alloc (FTS *, const char *, size_t) internal_function;
static FTSENT *fts_build (FTS *, int) internal_function;
static void fts_lfree (FTSENT *) internal_function;
static int fts_safe_changedir (FTS *, FTSENT *, int, const char *)
internal_function;
-#if _LGPL_PACKAGE
+#if GNULIB_FTS
+# include "fts-cycle.c"
+#else
static bool enter_dir (FTS *fts, FTSENT *ent) { return true; }
static void leave_dir (FTS *fts, FTSENT *ent) {}
static bool setup_dir (FTS *fts) { return true; }
static void free_dir (FTS *fts) {}
-#else
-# include "fts-cycle.c"
#endif
#ifndef MAX
static void
fts_set_stat_required (FTSENT *p, bool required)
{
- if (p->fts_info != FTS_NSOK)
- abort ();
+ fts_assert (p->fts_info == FTS_NSOK);
p->fts_statp->st_size = (required
? FTS_STAT_REQUIRED
: FTS_NO_STAT_REQUIRED);
cwd_advance_fd (FTS *sp, int fd, bool chdir_down_one)
{
int old = sp->fts_cwd_fd;
- if (old == fd && old != AT_FDCWD)
- abort ();
+ fts_assert (old != fd || old == AT_FDCWD);
if (chdir_down_one)
{
p->fts_namelen = len;
}
p->fts_accpath = p->fts_path = sp->fts_path;
- sp->fts_dev = p->fts_statp->st_dev;
}
int
/* If fts_build's call to fts_safe_changedir failed
because it was not able to fchdir into a
subdirectory, tell the caller. */
- if (p->fts_errno)
+ if (p->fts_errno && p->fts_info != FTS_DNR)
p->fts_info = FTS_ERR;
LEAVE_DIR (sp, p, "2");
return (p);
/* Move to the next node on this level. */
next: tmp = p;
if ((p = p->fts_link) != NULL) {
+ sp->fts_cur = p;
free(tmp);
/*
if (p->fts_level == FTS_ROOTLEVEL) {
if (RESTORE_INITIAL_CWD(sp)) {
SET(FTS_STOP);
- sp->fts_cur = p;
return (NULL);
}
fts_load(sp, p);
*t++ = '/';
memmove(t, p->fts_name, p->fts_namelen + 1);
check_for_dir:
+ sp->fts_cur = p;
if (p->fts_info == FTS_NSOK)
{
- switch (p->fts_statp->st_size)
- {
- case FTS_STAT_REQUIRED:
- p->fts_info = fts_stat(sp, p, false);
- break;
- case FTS_NO_STAT_REQUIRED:
- break;
- default:
- abort ();
- }
+ if (p->fts_statp->st_size == FTS_STAT_REQUIRED)
+ p->fts_info = fts_stat(sp, p, false);
+ else
+ fts_assert (p->fts_statp->st_size == FTS_NO_STAT_REQUIRED);
}
- sp->fts_cur = p;
+
if (p->fts_info == FTS_D)
{
+ /* Now that P->fts_statp is guaranteed to be valid,
+ if this is a command-line directory, record its
+ device number, to be used for FTS_XDEV. */
+ if (p->fts_level == FTS_ROOTLEVEL)
+ sp->fts_dev = p->fts_statp->st_dev;
Dprintf ((" entering: %s\n", p->fts_path));
if (! enter_dir (sp, p))
{
/* Move up to the parent node. */
p = tmp->fts_parent;
+ sp->fts_cur = p;
free(tmp);
if (p->fts_level == FTS_ROOTPARENTLEVEL) {
return (sp->fts_cur = NULL);
}
- if (p->fts_info == FTS_NSOK)
- abort ();
+ fts_assert (p->fts_info != FTS_NSOK);
/* NUL terminate the file name. */
sp->fts_path[p->fts_pathlen] = '\0';
p->fts_info = p->fts_errno ? FTS_ERR : FTS_DP;
if (p->fts_errno == 0)
LEAVE_DIR (sp, p, "3");
- sp->fts_cur = p;
return ISSET(FTS_STOP) ? NULL : p;
}
error (0, errno, "parent: %s", c2);
free (cwd);
free (c2);
- abort ();
+ fts_assert (0);
}
close (cwd_fd);
cwd_fd = parent_fd;
return (p->fts_level == FTS_ROOTLEVEL ? FTS_D : FTS_DOT);
}
-#if _LGPL_PACKAGE
+#if !GNULIB_FTS
{
/*
* Cycle detection is done by brute force when the directory