80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/* Copyright 2020 Google Inc.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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#include "libregexp.h"
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#include "quickjs-libc.h"
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#include <stdint.h>
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#include <stdio.h>
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#define CAPTURE_COUNT_MAX 255
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FILE *outfile=NULL;
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JSRuntime *rt;
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JSContext *ctx;
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int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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if (outfile == NULL) {
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outfile = fopen("/dev/null", "w");
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rt = JS_NewRuntime();
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// 64 Mo
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JS_SetMemoryLimit(rt, 0x4000000);
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//TODO JS_SetMaxStackSize ?
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ctx = JS_NewContextRaw(rt);
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}
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int len, ret, i;
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uint8_t *bc;
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char error_msg[64];
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const uint8_t *input;
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uint8_t *capture[CAPTURE_COUNT_MAX * 2];
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int capture_count;
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size_t Size1=Size;
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//Splits buffer into 2 sub buffers delimited by null character
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for (i=0; i<Size; i++) {
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if (Data[i] == 0) {
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Size1=i;
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break;
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}
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}
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if (Size1 == Size) {
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//missing delimiter
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return 0;
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}
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bc = lre_compile(&len, error_msg, sizeof(error_msg), (const char *) Data,
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Size1, 0, ctx);
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if (!bc) {
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return 0;
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}
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input = Data+Size1+1;
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ret = lre_exec(capture, bc, input, 0, Size-(Size1+1), 0, ctx);
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if (ret == 1) {
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capture_count = lre_get_capture_count(bc);
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for(i = 0; i < 2 * capture_count; i++) {
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uint8_t *ptr;
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ptr = capture[i];
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fprintf(outfile, "%d: ", i);
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if (!ptr)
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fprintf(outfile, "<nil>");
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else
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fprintf(outfile, "%u", (int)(ptr - (uint8_t *)input));
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fprintf(outfile, "\n");
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}
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}
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free(bc);
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return 0;
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}
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