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tests/fuzz: update for fmt_amount changes, create pseudorand for fuzzing.

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Reported-by: Christian Reitter
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2021-04-19 10:22:00 +09:30
parent b366453c6a
commit 4e2410742a
2 changed files with 19 additions and 6 deletions
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8
tests/fuzz/fuzz-amount.c
View file

@ -43,15 +43,15 @@ void run(const uint8_t *data, size_t size)
/* Format should inconditionally produce valid amount strings according to our /* Format should inconditionally produce valid amount strings according to our
* parser */ * parser */
fmt_msat = fmt_amount_msat(NULL, &msat); fmt_msat = fmt_amount_msat(NULL, msat);
fmt_msatbtc = fmt_amount_msat_btc(NULL, &msat, true); fmt_msatbtc = fmt_amount_msat_btc(NULL, msat, true);
assert(parse_amount_msat(&msat, fmt_msat, tal_count(fmt_msat))); assert(parse_amount_msat(&msat, fmt_msat, tal_count(fmt_msat)));
assert(parse_amount_msat(&msat, fmt_msatbtc, tal_count(fmt_msatbtc))); assert(parse_amount_msat(&msat, fmt_msatbtc, tal_count(fmt_msatbtc)));
tal_free(fmt_msat); tal_free(fmt_msat);
tal_free(fmt_msatbtc); tal_free(fmt_msatbtc);
fmt_sat = fmt_amount_sat(NULL, &sat); fmt_sat = fmt_amount_sat(NULL, sat);
fmt_satbtc = fmt_amount_sat_btc(NULL, &sat, true); fmt_satbtc = fmt_amount_sat_btc(NULL, sat, true);
assert(parse_amount_sat(&sat, fmt_sat, tal_count(fmt_sat))); assert(parse_amount_sat(&sat, fmt_sat, tal_count(fmt_sat)));
assert(parse_amount_sat(&sat, fmt_satbtc, tal_count(fmt_satbtc))); assert(parse_amount_sat(&sat, fmt_satbtc, tal_count(fmt_satbtc)));
tal_free(fmt_sat); tal_free(fmt_sat);

17
tests/fuzz/libfuzz.c
View file

@ -1,15 +1,28 @@
#include <tests/fuzz/libfuzz.h> #include <tests/fuzz/libfuzz.h>
#include <assert.h>
#include <ccan/tal/tal.h> #include <ccan/tal/tal.h>
#include <ccan/isaac/isaac64.h>
#include <common/pseudorand.h>
#include <common/utils.h> #include <common/utils.h>
#include <string.h> #include <string.h>
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size); int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
int LLVMFuzzerInitialize(int *argc, char ***argv); int LLVMFuzzerInitialize(int *argc, char ***argv);
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { /* Provide a non-random pseudo-random function to speed fuzzing. */
run(data, size); static isaac64_ctx isaac64;
uint64_t pseudorand(uint64_t max)
{
assert(max);
return isaac64_next_uint(&isaac64, max);
}
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
isaac64_init(&isaac64, NULL, 0);
run(data, size);
return 0; return 0;
} }