51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
// Copyright (C) 2017. See AUTHORS.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package openssl
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/*
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#include "openssl/engine.h"
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*/
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import "C"
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import (
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"fmt"
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"runtime"
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"unsafe"
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)
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type Engine struct {
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e *C.ENGINE
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}
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func EngineById(name string) (*Engine, error) {
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cname := C.CString(name)
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defer C.free(unsafe.Pointer(cname))
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e := &Engine{
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e: C.ENGINE_by_id(cname),
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}
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if e.e == nil {
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return nil, fmt.Errorf("engine %s missing", name)
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}
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if C.ENGINE_init(e.e) == 0 {
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C.ENGINE_free(e.e)
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return nil, fmt.Errorf("engine %s not initialized", name)
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}
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runtime.SetFinalizer(e, func(e *Engine) {
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C.ENGINE_finish(e.e)
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C.ENGINE_free(e.e)
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})
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return e, nil
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}
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