51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
package cmd
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import (
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"fmt"
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"strings"
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"archgrid.xyz/ag/tools/types"
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"archgrid.xyz/ag/toolsbox/hash/crc16"
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"github.com/spf13/cobra"
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)
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var (
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crc16Algorithm types.CRC16Algorithm = types.CRC16_IBM
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crc16File bool
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)
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var crc16Cmd = &cobra.Command{
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Use: "crc16",
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Short: `CRC16校验`,
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Long: `对给定的内容进行CRC16校验计算。`,
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Args: cobra.MinimumNArgs(1),
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Run: crc16Execute,
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}
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func crc16Execute(cmd *cobra.Command, args []string) {
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var (
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result []byte
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err error
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)
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if crc16File {
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result, err = crc16.SumFile(args[0], crc16Algorithm.IntoCRC16Mode())
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} else {
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result = crc16.CRC16([]byte(args[0]), crc16Algorithm.IntoCRC16Mode())
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}
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if err != nil {
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fmt.Printf("计算CRC16校验值时发生错误：%s\n", err)
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return
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}
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var builder strings.Builder
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for _, b := range result {
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builder.WriteString(fmt.Sprintf(" %02X", b))
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}
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fmt.Printf("CRC16校验值：%s\n", builder.String())
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}
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func init() {
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crc16Cmd.PersistentFlags().VarP(&crc16Algorithm, "algorithm", "a", "CRC16算法，可选值有：ccitt, ccitt-false, scsi, ibm, mbus，缺省值为ibm。")
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crc16Cmd.PersistentFlags().BoolVarP(&crc16File, "file", "f", false, "从文件中读取内容")
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rootCmd.AddCommand(crc16Cmd)
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}
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