From f6fabdfcc7ee34bbaef30c5cef540152e5c7b224 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Wed, 17 Oct 2001 03:17:15 +0000
Subject: In theory, this adds readdir64 and friends. Dunno if they work yet
or not.... -Erik
---
libc/misc/dirent/Makefile | 3 +-
libc/misc/dirent/alphasort64.c | 16 ++++++++
libc/misc/dirent/dirstream.h | 2 +-
libc/misc/dirent/opendir.c | 2 +-
libc/misc/dirent/readdir64.c | 68 ++++++++++++++++++++++++++++++++
libc/misc/dirent/scandir64.c | 88 ++++++++++++++++++++++++++++++++++++++++++
6 files changed, 176 insertions(+), 3 deletions(-)
create mode 100644 libc/misc/dirent/alphasort64.c
create mode 100644 libc/misc/dirent/readdir64.c
create mode 100644 libc/misc/dirent/scandir64.c
(limited to 'libc/misc/dirent')
diff --git a/libc/misc/dirent/Makefile b/libc/misc/dirent/Makefile
index 23b024b63..43f233619 100644
--- a/libc/misc/dirent/Makefile
+++ b/libc/misc/dirent/Makefile
@@ -23,7 +23,8 @@
TOPDIR=../../../
include $(TOPDIR)Rules.mak
-CSRC=alphasort.c closedir.c dirfd.c opendir.c readdir.c rewinddir.c scandir.c seekdir.c telldir.c
+CSRC=alphasort.c closedir.c dirfd.c opendir.c readdir.c rewinddir.c scandir.c \
+ seekdir.c telldir.c readdir64.c alphasort64.c scandir64.c
COBJS=$(patsubst %.c,%.o, $(CSRC))
OBJS=$(COBJS)
diff --git a/libc/misc/dirent/alphasort64.c b/libc/misc/dirent/alphasort64.c
new file mode 100644
index 000000000..94194e0c6
--- /dev/null
+++ b/libc/misc/dirent/alphasort64.c
@@ -0,0 +1,16 @@
+#include <features.h>
+#define _FILE_OFFSET_BITS 64
+#define __USE_LARGEFILE64
+#define __USE_FILE_OFFSET64
+#include <string.h>
+#include "dirstream.h"
+
+#ifdef __UCLIBC_HAVE_LFS__
+
+int alphasort64(const void * a, const void * b)
+{
+ return strcmp ((*(const struct dirent64 **) a)->d_name,
+ (*(const struct dirent64 **) b)->d_name);
+}
+#endif /* __UCLIBC_HAVE_LFS__ */
+
diff --git a/libc/misc/dirent/dirstream.h b/libc/misc/dirent/dirstream.h
index 2b06b1501..8131ffce7 100644
--- a/libc/misc/dirent/dirstream.h
+++ b/libc/misc/dirent/dirstream.h
@@ -54,7 +54,7 @@ struct __dirstream {
size_t dd_size;
/* -> directory buffer */
- struct dirent *dd_buf;
+ void *dd_buf;
/* offset of the next dir entry in directory. */
off_t dd_nextoff;
diff --git a/libc/misc/dirent/opendir.c b/libc/misc/dirent/opendir.c
index 0ac1637b3..25b5873e1 100644
--- a/libc/misc/dirent/opendir.c
+++ b/libc/misc/dirent/opendir.c
@@ -15,7 +15,7 @@ DIR *opendir(const char *name)
{
int fd;
struct stat statbuf;
- struct dirent *buf;
+ char *buf;
DIR *ptr;
if (stat(name, &statbuf))
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__ */
+
+
diff --git a/libc/misc/dirent/scandir64.c b/libc/misc/dirent/scandir64.c
new file mode 100644
index 000000000..6b0892191
--- /dev/null
+++ b/libc/misc/dirent/scandir64.c
@@ -0,0 +1,88 @@
+/* -*- Mode: C; c-file-style: "gnu" -*- */
+/*
+ Copyright (c) 2000 Petter Reinholdtsen
+
+ Permission is hereby granted, free of charge, to any person
+ obtaining a copy of this software and associated documentation
+ files (the "Software"), to deal in the Software without
+ restriction, including without limitation the rights to use, copy,
+ modify, merge, publish, distribute, sublicense, and/or sell copies
+ of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+*/
+
+#include <features.h>
+#define _FILE_OFFSET_BITS 64
+#define __USE_LARGEFILE64
+#define __USE_FILE_OFFSET64
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include "dirstream.h"
+
+#ifdef __UCLIBC_HAVE_LFS__
+
+/*
+ * FIXME: This is a simple hack version which doesn't sort the data, and
+ * just passes all unsorted.
+ */
+
+int scandir64(const char *dir, struct dirent64 ***namelist,
+ int (*selector) (const struct dirent64 *),
+ int (*compar) (const __ptr_t, const __ptr_t))
+{
+ DIR *d = opendir(dir);
+ struct dirent64 *current;
+ struct dirent64 **names;
+ int count = 0;
+ int pos = 0;
+ int result = -1;
+
+ if (NULL == d)
+ return -1;
+
+ while (NULL != readdir64(d))
+ count++;
+
+ names = malloc(sizeof (struct dirent64 *) * count);
+
+ rewinddir(d);
+
+ while (NULL != (current = readdir64(d))) {
+ if (NULL == selector || selector(current)) {
+ struct dirent64 *copyentry = malloc(current->d_reclen);
+
+ memcpy(copyentry, current, current->d_reclen);
+
+ names[pos] = copyentry;
+ pos++;
+ }
+ }
+ result = closedir(d);
+
+ if (pos != count)
+ names = realloc(names, sizeof (struct dirent64 *) * pos);
+
+ if (compar != NULL) {
+ qsort(names, pos, sizeof (struct dirent64 *), compar);
+ }
+
+ *namelist = names;
+
+ return pos;
+}
+#endif /* __UCLIBC_HAVE_LFS__ */
+
--
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