/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ian Lance Taylor (ian@airs.com).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.
Modified by Ian Lance Taylor for Taylor UUCP, June 1992, and October 1993. */
#else /* ! HAVE_DIRENT_H */
#endif /* ! HAVE_DIRENT_H */
#endif /* HAVE_OPENDIR */
#define PATH_MAX MAXPATHLEN
/* Traverse one level of a directory tree. */
ftw_dir (dirs
, level
, descriptors
, dir
, len
, func
)
int (*func
) P((const char *file
, struct stat
*status
, int flag
));
while ((entry
= readdir (dirs
[level
])) != NULL
)
namlen
= strlen (entry
->d_name
);
if (entry
->d_name
[0] == '.'
(namlen
== 2 && entry
->d_name
[1] == '.')))
if (namlen
+ len
+ 1 > PATH_MAX
)
memcpy ((dir
+ len
+ 1), entry
->d_name
, namlen
+ 1);
else if (S_ISDIR (s
.st_mode
))
newlev
= (level
+ 1) % descriptors
;
if (dirs
[newlev
] != NULL
)
dirs
[newlev
] = opendir (dir
);
if (dirs
[newlev
] != NULL
)
ret
= (*func
) (dir
, &s
, flag
);
ret
= ftw_dir (dirs
, newlev
, descriptors
, dir
,
if (dirs
[newlev
] != NULL
)
dirs
[level
] = opendir (dir
);
if (readdir (dirs
[level
]) == NULL
)
return errno
== 0 ? 0 : -1;
return errno
== 0 ? 0 : -1;
/* Call a function on every element in a directory tree. */
ftw (dir
, func
, descriptors
)
int (*func
) P((const char *file
, struct stat
*status
, int flag
));
dirs
= (DIR **) malloc (descriptors
* sizeof (DIR *));
memcpy (buf
, dir
, len
+ 1);
else if (S_ISDIR (s
.st_mode
))
ret
= (*func
) (buf
, &s
, flag
);
if (len
== 1 && *buf
== '/')
ret
= ftw_dir (dirs
, 0, descriptors
, buf
, len
, func
);