DON'T USE THIS -- Providing some missing POSIX File syscalls.

src/trusted/service_runtime/sys_fdio.h

Index: src/trusted/service_runtime/sys_fdio.h
diff --git a/src/trusted/service_runtime/sys_fdio.h b/src/trusted/service_runtime/sys_fdio.h
index 2bc45329e3946f761b1b7fbed23a21d8399f1b01..1c8d3272a0acebe4b9f33cd158b67284aac6fa2a 100644
--- a/src/trusted/service_runtime/sys_fdio.h
+++ b/src/trusted/service_runtime/sys_fdio.h
@@ -51,6 +51,23 @@ int32_t NaClSysGetdents(struct NaClAppThread  *natp,
                         uint32_t              dirp,
                         size_t                count);
 
+int32_t NaClSysFchdir(struct NaClAppThread *natp,
+                      int                  d);
+
+int32_t NaClSysFchmod(struct NaClAppThread *natp,
+                      int                  d,
+                      int                  mode);
+
+int32_t NaClSysFsync(struct NaClAppThread *natp,
+                     int                  d);
+
+int32_t NaClSysFdatasync(struct NaClAppThread *natp,
+                         int                  d);
+
+int32_t NaClSysFtruncate(struct NaClAppThread *natp,
+                         int                  d,
+                         nacl_abi_off_t       length);
+
 int32_t NaClSysIsatty(struct NaClAppThread *natp,
                       int                  d);