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authorEric Andersen <andersen@codepoet.org>2001-10-17 03:17:15 +0000
committerEric Andersen <andersen@codepoet.org>2001-10-17 03:17:15 +0000
commitf6fabdfcc7ee34bbaef30c5cef540152e5c7b224 (patch)
tree4b9d4614efaf3528cb230057df6467610cee3171 /libc/misc/dirent/readdir64.c
parentcad937c12d93653ed1bf548eed8fc1a178f991d8 (diff)
In theory, this adds readdir64 and friends. Dunno if they
work yet or not.... -Erik
Diffstat (limited to 'libc/misc/dirent/readdir64.c')
-rw-r--r--libc/misc/dirent/readdir64.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/libc/misc/dirent/readdir64.c b/libc/misc/dirent/readdir64.c
new file mode 100644
index 000000000..d0f28030b
--- /dev/null
+++ b/libc/misc/dirent/readdir64.c
@@ -0,0 +1,68 @@
+#include <features.h>
+#define _FILE_OFFSET_BITS 64
+#define __USE_LARGEFILE64
+#define __USE_FILE_OFFSET64
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <dirent.h>
+#include "dirstream.h"
+
+#ifdef __UCLIBC_HAVE_LFS__
+
+extern int getdents64 __P ((unsigned int fd, struct dirent64 *dirp, unsigned int count));
+
+
+struct dirent64 *readdir64(DIR * dir)
+{
+ int result;
+ struct dirent64 *de;
+
+ if (!dir) {
+ __set_errno(EBADF);
+ return NULL;
+ }
+
+ /* Are we running an old kernel? */
+ if (dir->dd_getdents == no_getdents) {
+ abort();
+ }
+
+ if (dir->dd_size <= dir->dd_nextloc) {
+ /* read dir->dd_max bytes of directory entries. */
+ result = getdents64(dir->dd_fd, dir->dd_buf, dir->dd_max);
+
+ /* We assume we have getdents (). */
+ dir->dd_getdents = have_getdents;
+ if (result <= 0) {
+ result = -result;
+ if (result > 0) {
+ /* Are we right? */
+ if (result == ENOSYS) {
+ dir->dd_getdents = no_getdents;
+ abort();
+ }
+ __set_errno(result);
+ }
+
+ return NULL;
+ }
+
+ dir->dd_size = result;
+ dir->dd_nextloc = 0;
+ }
+
+ de = (struct dirent64 *) (((char *) dir->dd_buf) + dir->dd_nextloc);
+
+ /* Am I right? H.J. */
+ dir->dd_nextloc += de->d_reclen;
+
+ /* We have to save the next offset here. */
+ dir->dd_nextoff = de->d_off;
+
+ return de;
+}
+#endif /* __UCLIBC_HAVE_LFS__ */
+
+