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/* Copyright (C) 1992-1998, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA.
*/
/* Modified for uClibc by Erik Andersen
*/
#include <_lfs_64.h>
#include <dirent.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include "dirstream.h"
/* Experimentally off - libc_hidden_proto(memcpy) */
/* libc_hidden_proto(opendir) */
/* libc_hidden_proto(closedir) */
/* libc_hidden_proto(qsort) */
/* libc_hidden_proto(readdir64) */
int scandir64(const char *dir, struct dirent64 ***namelist,
int (*selector) (const struct dirent64 *),
int (*compar) (const void *, const void *))
{
DIR *dp = opendir (dir);
struct dirent64 *current;
struct dirent64 **names = NULL;
size_t names_size = 0, pos;
int save;
if (dp == NULL)
return -1;
save = errno;
__set_errno (0);
pos = 0;
while ((current = readdir64 (dp)) != NULL) {
int use_it = selector == NULL;
if (! use_it)
{
use_it = (*selector) (current);
/* The selector function might have changed errno.
* It was zero before and it need to be again to make
* the latter tests work. */
if (! use_it)
__set_errno (0);
}
if (use_it)
{
struct dirent64 *vnew;
size_t dsize;
/* Ignore errors from selector or readdir64 */
__set_errno (0);
if (unlikely(pos == names_size))
{
struct dirent64 **new;
if (names_size == 0)
names_size = 10;
else
names_size *= 2;
new = (struct dirent64 **) realloc (names,
names_size * sizeof (struct dirent64 *));
if (new == NULL)
break;
names = new;
}
dsize = ¤t->d_name[_D_ALLOC_NAMLEN(current)] - (char*)current;
vnew = (struct dirent64 *) malloc (dsize);
if (vnew == NULL)
break;
names[pos++] = (struct dirent64 *) memcpy (vnew, current, dsize);
}
}
if (unlikely(errno != 0))
{
save = errno;
closedir (dp);
while (pos > 0)
free (names[--pos]);
free (names);
__set_errno (save);
return -1;
}
closedir (dp);
__set_errno (save);
/* Sort the list if we have a comparison function to sort with. */
if (compar != NULL)
qsort (names, pos, sizeof (struct dirent64 *), compar);
*namelist = names;
return pos;
}
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