Mercurial > dropbear
view fuzz/fuzz-harness.c @ 1773:c3ca130d193a
fuzzing - avoid sha1 for random seed every iteration
author | Matt Johnston <matt@ucc.asn.au> |
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date | Sun, 01 Nov 2020 14:01:37 +0800 |
parents | 2406a9987810 |
children | 8179eabe16c9 |
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#include "includes.h" #include "buffer.h" #include "dbutil.h" extern int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size); int main(int argc, char ** argv) { int i; buffer *input = buf_new(100000); for (i = 1; i < argc; i++) { #if DEBUG_TRACE if (strcmp(argv[i], "-v") == 0) { debug_trace = 1; TRACE(("debug printing on")) } #endif } int old_fuzz_wrapfds = 0; for (i = 1; i < argc; i++) { if (argv[i][0] == '-') { /* ignore arguments */ continue; } char* fn = argv[i]; buf_setlen(input, 0); buf_readfile(input, fn); buf_setpos(input, 0); /* Run twice to catch problems with statefulness */ fuzz.wrapfds = old_fuzz_wrapfds; printf("Running %s once \n", fn); LLVMFuzzerTestOneInput(input->data, input->len); printf("Running %s twice \n", fn); LLVMFuzzerTestOneInput(input->data, input->len); printf("Done %s\n", fn); /* Disable wrapfd so it won't interfere with buf_readfile() above */ old_fuzz_wrapfds = fuzz.wrapfds; fuzz.wrapfds = 0; } printf("Finished\n"); return 0; } size_t LLVMFuzzerMutate(uint8_t *Data, size_t Size, size_t MaxSize) { printf("standalone fuzzer harness shouldn't call LLVMFuzzerMutate"); abort(); return 0; }