lib9pclient is the new libfs

src/lib9pclient/open.c

@@ -0,0 +1,24 @@
+#include <u.h>
+#include <libc.h>
+#include <fcall.h>
+#include <9pclient.h>
+#include "fsimpl.h"
+
+CFid*
+fsopen(CFsys *fs, char *name, int mode)
+{
+	CFid *fid;
+	Fcall tx, rx;
+
+	if((fid = _fswalk(fs->root, name)) == nil)
+		return nil;
+	tx.type = Topen;
+	tx.fid = fid->fid;
+	tx.mode = mode;
+	if(_fsrpc(fs, &tx, &rx, 0) < 0){
+		fsclose(fid);
+		return nil;
+	}
+	fid->mode = mode;
+	return fid;
+}