mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 23:00:07 +00:00
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/* Copyright (C) 1992, 1993, 1994 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 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. */
|
|
|
|
#include <ansidecl.h>
|
|
#include <dirent.h>
|
|
#include <stdlib.h>
|
|
|
|
int
|
|
DEFUN(scandir, (dir, namelist, select, cmp),
|
|
CONST char *dir AND
|
|
struct dirent ***namelist AND
|
|
int EXFUN((*select), (struct dirent *)) AND
|
|
int EXFUN((*cmp), (CONST PTR, CONST PTR)))
|
|
{
|
|
DIR *dp = opendir (dir);
|
|
struct dirent **v = NULL;
|
|
size_t vsize = 0, i;
|
|
struct dirent *d;
|
|
int save;
|
|
|
|
if (dp == NULL)
|
|
return -1;
|
|
|
|
save = errno;
|
|
errno = 0;
|
|
|
|
i = 0;
|
|
while ((d = readdir (dp)) != NULL)
|
|
if (select == NULL || (*select) (d))
|
|
{
|
|
if (i == vsize)
|
|
{
|
|
struct dirent **new;
|
|
if (vsize == 0)
|
|
vsize = 10;
|
|
else
|
|
vsize *= 2;
|
|
new = (struct dirent **) realloc (v, vsize * sizeof (*v));
|
|
if (new == NULL)
|
|
{
|
|
lose:
|
|
errno = ENOMEM;
|
|
break;
|
|
}
|
|
v = new;
|
|
}
|
|
|
|
v[i] = (struct dirent *) malloc (sizeof (**v));
|
|
if (v[i] == NULL)
|
|
goto lose;
|
|
|
|
*v[i++] = *d;
|
|
}
|
|
|
|
if (errno != 0)
|
|
{
|
|
save = errno;
|
|
(void) closedir (dp);
|
|
while (i > 0)
|
|
free (v[--i]);
|
|
free (v);
|
|
errno = save;
|
|
return -1;
|
|
}
|
|
|
|
(void) closedir (dp);
|
|
errno = save;
|
|
|
|
/* Sort the list if we have a comparison function to sort with. */
|
|
if (cmp != NULL)
|
|
qsort (v, i, sizeof (*v), cmp);
|
|
*namelist = v;
|
|
return i;
|
|
}
|