util.h

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// util header file
//
// Copyright 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
#include <stdlib.h>  // for size_t
 
// Declare it - we'll either use ours or whatever autoconf found.
// Including <bsd/string.h> would maybe be nicer, but it doesn't seem to
// actually define this symbol unless we set _GNU_SOURCE.
void explicit_bzero(void *s, size_t len);