add fsseek
diff --git a/include/9pclient.h b/include/9pclient.h
index 8a0d342..e8beed4 100644
--- a/include/9pclient.h
+++ b/include/9pclient.h
@@ -22,6 +22,9 @@
 int fsopenfd(CFsys*, char*, int);
 long fsread(CFid*, void*, long);
 long fsreadn(CFid*, void*, long);
+long fspread(CFid*, void*, long, vlong);
+long fspwrite(CFid*, void*, long, vlong);
+vlong fsseek(CFid*, vlong, int);
 long fswrite(CFid*, void*, long);
 void fsclose(CFid*);
 void fsunmount(CFsys*);