llvm-project/llvm/lib/Fuzzer/test/StrncmpTest.cpp

26 lines
683 B
C++

// Simple test for a fuzzer. The fuzzer must find a particular string.
#include <cstring>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
static volatile int sink;
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
// TODO: check other sizes.
char *S = (char*)Data;
if (Size >= 8 && strncmp(S, "123", 8))
sink = 1;
if (Size >= 8 && strncmp(S, "01234567", 8) == 0) {
if (Size >= 12 && strncmp(S + 8, "ABCD", 4) == 0) {
if (Size >= 14 && strncmp(S + 12, "XY", 2) == 0) {
if (Size >= 16 && strncmp(S + 14, "KLM", 3) == 0) {
fprintf(stderr, "BINGO\n");
exit(1);
}
}
}
}
return 0;
}