| /* Copyright (C) 2000-2014 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, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <dirent.h> |
| |
| #define SCANDIR __scandir64 |
| #define SCANDIRAT scandirat64 |
| #define READDIR __readdir64 |
| #define DIRENT_TYPE struct dirent64 |
| #define SKIP_SCANDIR_CANCEL 1 |
| |
| #include <dirent/scandir.c> |
| |
| #undef SCANDIR |
| #undef READDIR |
| #undef DIRENT_TYPE |
| |
| #include <shlib-compat.h> |
| |
| versioned_symbol (libc, __scandir64, scandir64, GLIBC_2_2); |
| |
| #if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2) |
| # include <string.h> |
| # include <errno.h> |
| # include "olddirent.h" |
| |
| int |
| __old_scandir64 (dir, namelist, select, cmp) |
| const char *dir; |
| struct __old_dirent64 ***namelist; |
| int (*select) (const struct __old_dirent64 *); |
| int (*cmp) (const struct __old_dirent64 **, |
| const struct __old_dirent64 **); |
| { |
| DIR *dp = __opendir (dir); |
| struct __old_dirent64 **v = NULL; |
| size_t vsize = 0; |
| struct scandir_cancel_struct c; |
| struct __old_dirent64 *d; |
| int save; |
| |
| if (dp == NULL) |
| return -1; |
| |
| save = errno; |
| __set_errno (0); |
| |
| c.dp = dp; |
| c.v = NULL; |
| c.cnt = 0; |
| __libc_cleanup_push (__scandir_cancel_handler, &c); |
| |
| while ((d = __old_readdir64 (dp)) != NULL) |
| { |
| int use_it = select == NULL; |
| |
| if (! use_it) |
| { |
| use_it = select (d); |
| /* The select function might have changed errno. It was |
| zero before and it need to be again to make the latter |
| tests work. */ |
| __set_errno (0); |
| } |
| |
| if (use_it) |
| { |
| struct __old_dirent64 *vnew; |
| size_t dsize; |
| |
| /* Ignore errors from select or readdir */ |
| __set_errno (0); |
| |
| if (__builtin_expect (c.cnt == vsize, 0)) |
| { |
| struct __old_dirent64 **new; |
| if (vsize == 0) |
| vsize = 10; |
| else |
| vsize *= 2; |
| new = (struct __old_dirent64 **) realloc (v, |
| vsize * sizeof (*v)); |
| if (new == NULL) |
| break; |
| v = new; |
| c.v = (void *) v; |
| } |
| |
| dsize = &d->d_name[_D_ALLOC_NAMLEN (d)] - (char *) d; |
| vnew = (struct __old_dirent64 *) malloc (dsize); |
| if (vnew == NULL) |
| break; |
| |
| v[c.cnt++] = (struct __old_dirent64 *) memcpy (vnew, d, dsize); |
| } |
| } |
| |
| if (__builtin_expect (errno, 0) != 0) |
| { |
| save = errno; |
| |
| while (c.cnt > 0) |
| free (v[--c.cnt]); |
| free (v); |
| c.cnt = -1; |
| } |
| else |
| { |
| /* Sort the list if we have a comparison function to sort with. */ |
| if (cmp != NULL) |
| qsort (v, c.cnt, sizeof (*v), |
| (int (*) (const void *, const void *)) cmp); |
| |
| *namelist = v; |
| } |
| |
| __libc_cleanup_pop (0); |
| |
| (void) __closedir (dp); |
| __set_errno (save); |
| |
| return c.cnt; |
| } |
| compat_symbol (libc, __old_scandir64, scandir64, GLIBC_2_1); |
| |
| #endif |