87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
// Copyright 2020 Google LLC
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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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#include "yaml.h"
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#include "yaml_write_handler.h"
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#include <assert.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef NDEBUG
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#undef NDEBUG
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#endif
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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if (size < 2)
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return 0;
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bool done = false;
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bool is_canonical = data[0] & 1;
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bool is_unicode = data[1] & 1;
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data += 2;
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size -= 2;
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yaml_parser_t parser;
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yaml_emitter_t emitter;
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yaml_event_t event;
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/* Initialize the parser and emitter objects. */
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if (!yaml_parser_initialize(&parser))
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return 0;
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if (!yaml_emitter_initialize(&emitter))
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goto cleanup_parser;
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/* Set the parser parameters. */
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yaml_parser_set_input_string(&parser, data, size);
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/* Set the emitter parameters. */
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yaml_output_buffer_t out = {/*buf=*/NULL, /*size=*/0};
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yaml_emitter_set_output(&emitter, yaml_write_handler, &out);
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yaml_emitter_set_canonical(&emitter, is_canonical);
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yaml_emitter_set_unicode(&emitter, is_unicode);
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/* The main loop. */
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while (!done) {
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/* Get the next event. */
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if (!yaml_parser_parse(&parser, &event))
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break;
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/* Check if this is the stream end. */
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done = (event.type == YAML_STREAM_END_EVENT);
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/* Emit the event. */
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if (!yaml_emitter_emit(&emitter, &event))
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break;
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}
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free(out.buf);
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yaml_emitter_delete(&emitter);
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cleanup_parser:
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yaml_parser_delete(&parser);
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return 0;
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}
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