23b5a4729f
This is a giant refactor to split the giant lang package into many subpackages. The most difficult piece was figuring out how to extract the extra ast structs into their own package, because they needed to call two functions which also needed to import the ast. The solution was to separate out those functions into their own packages, and to pass them into the ast at the root when they're needed, and to let the relevant ast portions call a handle. This isn't terribly ugly because we already had a giant data struct woven through the ast. The bad part is rebasing any WIP work on top of this.
44 lines
1.6 KiB
Go
44 lines
1.6 KiB
Go
// Mgmt
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// Copyright (C) 2013-2021+ James Shubin and the project contributors
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// Written by James Shubin <james@shubin.ca> and the project contributors
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package fuzz
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import (
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"bytes"
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"github.com/purpleidea/mgmt/lang/parser"
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)
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// Fuzz is repeatedly called by go-fuzz with semi-random inputs in an attempt to
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// make the Lexer/Parser crash. From the go-fuzz docs: Data is a random input
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// generated by go-fuzz, note that in most cases it is invalid. The function
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// must return 1 if the fuzzer should increase priority of the given input
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// during subsequent fuzzing (for example, the input is lexically correct and
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// was parsed successfully); -1 if the input must not be added to corpus even if
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// gives new coverage; and 0 otherwise; other values are reserved for future
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// use.
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func Fuzz(data []byte) int {
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ast, err := parser.LexParse(bytes.NewReader(data))
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if err != nil {
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if ast != nil {
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panic("ast != nil on error")
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}
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return 0
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}
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return 1
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}
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