ksubdomain源码阅读
前两天看了amass关于dns枚举的实现，当然关于加速dns枚举的还有ksubdomain这个项目，今天花了几分钟看了下实现 阅读基于 https://github.com/boy-hack/ksubdomain/commit/9a2f2967eb8fb5c155b22393b9241f4cd6a02dc4 分析 首先从入口点开始看 https://github.com/boy-hack/ksubdomain/blob/main/cmd/ksubdomain/enum.go#L55-L109 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 Action: func(c *cli.Context) error { if c.NumFlags() == 0 { cli.ShowCommandHelpAndExit(c, "enum", 0) } var domains []string // handle domain if c.String("domain") != "" { domains = append(domains, c.String("domain")) } if c.String("domainList") != "" { dl, err := core.LinesInFile(c.String("domainList")) if err != nil { gologger.Fatalf("读取domain文件失败:%s\n", err.Error()) } domains = append(dl, domains...) } levelDict := c.String("level-dict") var levelDomains []string if levelDict != "" { dl, err := core.LinesInFile(levelDict) if err != nil { gologger.Fatalf("读取domain文件失败:%s,请检查--level-dict参数\n", err.Error()) } levelDomains = dl } else if c.Int("level") > 2 { levelDomains = core.GetDefaultSubNextData() } opt := &options.Options{ Rate: options.Band2Rate(c.String("band")), Domain: domains, FileName: c.String("filename"), Resolvers: options.GetResolvers(c.String("resolvers")), Output: c.String("output"), Silent: c.Bool("silent"), Stdin: c.Bool("stdin"), SkipWildCard: c.Bool("skip-wild"), TimeOut: c.Int("timeout"), Retry: c.Int("retry"), Method: "enum", OnlyDomain: c.Bool("only-domain"), NotPrint: c.Bool("not-print"), Level: c.Int("level"), LevelDomains: levelDomains, } opt.Check() r, err := runner.New(opt) if err != nil { gologger.Fatalf("%s\n", err.Error()) return nil } r.RunEnumeration() r.Close() return nil }, 具体的实现细节就不关注了，可以看到入口点只是读取了一些配置，继续进入 RunEnumeration 看看 ...