mirror of
https://github.com/janet-lang/janet
synced 2024-12-01 04:19:55 +00:00
a87015598c
This makes these operatios use constant stack space rather than linear stackspace given the size of the inputs. This is important to prevent certain parser input from causing a stack overflow - in general, we try to avoid unbounded recursion.
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
#include <stdint.h>
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#include <string.h>
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#include <janet.h>
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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/* init Janet */
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janet_init();
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/* fuzz the parser */
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JanetParser parser;
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janet_parser_init(&parser);
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for (int i = 0, done = 0; i < size; i++) {
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switch (janet_parser_status(&parser)) {
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case JANET_PARSE_DEAD:
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case JANET_PARSE_ERROR:
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done = 1;
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break;
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case JANET_PARSE_PENDING:
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if (i == size) {
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janet_parser_eof(&parser);
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} else {
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janet_parser_consume(&parser, data[i]);
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}
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break;
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case JANET_PARSE_ROOT:
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if (i >= size) {
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janet_parser_eof(&parser);
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} else {
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janet_parser_consume(&parser, data[i]);
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}
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break;
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}
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if (done == 1)
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break;
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}
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janet_parser_deinit(&parser);
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/* cleanup Janet */
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janet_deinit();
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return 0;
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}
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