Function read_from_fd

src/test/test_subprocess.cc:35–44

#endif

bool read_from_fd(int fd, std::string &out) {
  out.clear();
  char buf[1024];
  ssize_t n = safe_read(fd, buf, sizeof(buf) - 1);
  if (n < 0)
    return false;
  buf[n] = '\0';
  out = buf;
  return true;
}

TEST(SubProcess, True)
{