1 files changed, 69 insertions, 0 deletions
diff --git a/libc/misc/dirent/readdir.c b/libc/misc/dirent/readdir.c
new file mode 100644
index 000000000..a755ed24d
--- /dev/null
+++ b/libc/misc/dirent/readdir.c
@@ -0,0 +1,69 @@
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <dirent.h>
+#include "dirstream.h"
+
+extern int getdents __P ((unsigned int fd, struct dirent *dirp, unsigned int count));
+
+
+struct dirent *readdir(DIR * dir)
+{
+	int result;
+	struct dirent *de;
+
+	if (!dir) {
+		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 = getdents(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();
+				}
+				errno = result;
+			}
+
+			return NULL;
+		}
+
+		dir->dd_size = result;
+		dir->dd_nextloc = 0;
+	}
+
+	de = (struct dirent *) (((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;
+
+	/* convert */
+	dir->dd_buf->d_ino = de->d_ino;
+	dir->dd_buf->d_off = de->d_off;
+	dir->dd_buf->d_reclen = de->d_reclen;
+	dir->dd_buf->d_type = 0;
+	if (strlen((char *) &de->d_type) > 10)
+		de->d_name[10] = 0;
+	strcpy(dir->dd_buf->d_name, (char *) &de->d_name);
+	errno = 0;
+
+	return dir->dd_buf;
+}