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package cmd
import (
"dtool/prober"
"dtool/utils"
"errors"
"github.com/spf13/cobra"
)
var filename string
var output_file string
var thread_num int
var upstreamCmd = &cobra.Command{
Use: "upstream",
//Aliases: []string{"up", "stream"},
Short: "probe upstream recursive resolvers",
Long: `get the upstream recursive resolvers of the input resolvers
input target can be added as an argument or as a file
-f input file with limited ip addresses (limit=50)
-o output file default json type
-t number of goroutine`,
//Args: cobra.ExactArgs(1),
Run: upstream,
}
func upstream(cmd *cobra.Command, args []string) {
if len(args) > 1 {
panic(errors.New("too many arguments"))
} else if len(args) == 1 {
if utils.IsValidIP(args[0]) {
prober.Get_upstream_ip(args[0])
} else {
panic(errors.New("invalid ip address"))
}
} else if len(args) == 0 {
prober.Get_upstream_file(filename, output_file, thread_num)
}
}
func init() {
upstreamCmd.Flags().StringVarP(&filename, "file", "f", "", "input file(optional)")
upstreamCmd.Flags().StringVarP(&output_file, "output", "o", "", "output file(optional)")
upstreamCmd.MarkFlagsRequiredTogether("file", "output")
upstreamCmd.Flags().IntVarP(&thread_num, "threads", "t", 10, "number of concurrent threads")
rootCmd.AddCommand(upstreamCmd)
}
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