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// Copyright 2015 Matthew Holt and The Caddy Authors
//
// 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.
// +build gofuzz
// +build gofuzz_libfuzzer
package httpcaddyfile
import (
"bytes"
"github.com/caddyserver/caddy/v2"
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
)
func FuzzHTTPCaddyfileAdapter(data []byte) int {
adapter := caddyfile.Adapter{
ServerType: ServerType{},
}
b, warns, err := adapter.Adapt(data, nil)
// Adapt func calls the Setup() func of the ServerType,
// thus it's going across multiple layers, each can
// return warnings or errors. Marking the presence of
// errors or warnings as interesting in this case
// could push the fuzzer towards a path where we only
// catch errors. Let's push the fuzzer to where it passes
// but breaks.
if (err != nil) || (warns != nil && len(warns) > 0) {
return 0
}
// adapted Caddyfile should be parseable by the configuration loader in admin.go
err = caddy.Load(bytes.NewReader(b))
if err != nil {
return 0
}
return 1
}
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