test/test-cmplog.c

#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>

int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t i) {
  if (i < 24) return 0;
  if (buf[0] != 'A') return 0;
  if (buf[1] != 'B') return 0;
  if (buf[2] != 'C') return 0;
  if (buf[3] != 'D') return 0;
  if (memcmp(buf + 4, "1234", 4) || memcmp(buf + 8, "EFGH", 4)) return 0;
  if (strncmp(buf + 12, "IJKL", 4) == 0 && strcmp(buf + 16, "DEADBEEF") == 0)
    abort();
  return 0;
}

#ifdef __AFL_COMPILER
int main(int argc, char *argv[]) {
  unsigned char    buf[1024];
  ssize_t i;
  while(__AFL_LOOP(1000)) {
    i = read(0, (char*)buf, sizeof(buf) - 1);
    if (i > 0) buf[i] = 0;
    LLVMFuzzerTestOneInput(buf, i);
  }
  return 0;
}
#endif