Function IsProblemPackage

common/utils/binary.go:184–198

IsProblemPackage 判断是否是题目包

(filePath string)

// IsProblemPackage 判断是否是题目包
func IsProblemPackage(filePath string) (bool, error) {
	fp, err := os.OpenFile(filePath, os.O_RDONLY|syscall.O_NONBLOCK, 0)
	if err != nil {
		return false, errors.Errorf("open file error")
	}
	defer fp.Close()

	var magic uint16 = 0
	err = binary.Read(fp, binary.BigEndian, &magic)
	if err != nil {
		return false, err
	}

	return magic == constants.ProblemPackageMagicCode, nil
}