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-rw-r--r--src/dirent/__dirent.h4
-rw-r--r--src/dirent/readdir.c4
2 files changed, 7 insertions, 1 deletions
diff --git a/src/dirent/__dirent.h b/src/dirent/__dirent.h
index 101b0368..828a5f17 100644
--- a/src/dirent/__dirent.h
+++ b/src/dirent/__dirent.h
@@ -1,9 +1,11 @@
struct __dirstream
{
- int fd;
off_t tell;
+ int fd;
int buf_pos;
int buf_end;
volatile int lock[1];
+ /* Any changes to this struct must preserve the property:
+ * offsetof(struct __dirent, buf) % sizeof(off_t) == 0 */
char buf[2048];
};
diff --git a/src/dirent/readdir.c b/src/dirent/readdir.c
index 2cf0632c..dc5f3edb 100644
--- a/src/dirent/readdir.c
+++ b/src/dirent/readdir.c
@@ -1,9 +1,13 @@
#include <dirent.h>
#include <errno.h>
+#include <stddef.h>
#include "__dirent.h"
#include "syscall.h"
#include "libc.h"
+typedef char dirstream_buf_alignment_check[1-2*(int)(
+ offsetof(struct __dirstream, buf) % sizeof(off_t))];
+
int __getdents(int, struct dirent *, size_t);
struct dirent *readdir(DIR *dir)