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-rw-r--r--dirent/scandirat.c110
1 files changed, 8 insertions, 102 deletions
diff --git a/dirent/scandirat.c b/dirent/scandirat.c
index d7ae5e5..41725af 100644
--- a/dirent/scandirat.c
+++ b/dirent/scandirat.c
@@ -24,114 +24,20 @@
#undef scandirat64
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <bits/libc-lock.h>
-
#ifndef SCANDIRAT
-# define SCANDIRAT __scandirat
-# define READDIR __readdir
-# define DIRENT_TYPE struct dirent
+# define SCANDIRAT __scandirat
+# define SCANDIR_TAIL __scandir_tail
+# define DIRENT_TYPE struct dirent
# define SCANDIRAT_WEAK_ALIAS
#endif
-
int
-SCANDIRAT (dfd, dir, namelist, select, cmp)
- int dfd;
- const char *dir;
- DIRENT_TYPE ***namelist;
- int (*select) (const DIRENT_TYPE *);
- int (*cmp) (const DIRENT_TYPE **, const DIRENT_TYPE **);
+SCANDIRAT (int dfd, const char *dir,
+ DIRENT_TYPE ***namelist,
+ int (*select) (const DIRENT_TYPE *),
+ int (*cmp) (const DIRENT_TYPE **, const DIRENT_TYPE **))
{
- DIR *dp = __opendirat (dfd, dir);
- DIRENT_TYPE **v = NULL;
- size_t vsize = 0;
- struct scandir_cancel_struct c;
- DIRENT_TYPE *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 = READDIR (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)
- {
- DIRENT_TYPE *vnew;
- size_t dsize;
-
- /* Ignore errors from select or readdir */
- __set_errno (0);
-
- if (__glibc_unlikely (c.cnt == vsize))
- {
- DIRENT_TYPE **new;
- if (vsize == 0)
- vsize = 10;
- else
- vsize *= 2;
- new = (DIRENT_TYPE **) 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 = (DIRENT_TYPE *) malloc (dsize);
- if (vnew == NULL)
- break;
-
- v[c.cnt++] = (DIRENT_TYPE *) 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;
+ return SCANDIR_TAIL (__opendirat (dfd, dir), namelist, select, cmp);
}
libc_hidden_def (SCANDIRAT)
#ifdef SCANDIRAT_WEAK_ALIAS