IP calculator

ipinfo/cmd_calc.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"fmt"
+	"github.com/ipinfo/cli/lib"
+	"github.com/ipinfo/cli/lib/complete"
+	"github.com/ipinfo/cli/lib/complete/predict"
+	"github.com/spf13/pflag"
+)
+
+var completionsCalc = &complete.Command{
+	Flags: map[string]complete.Predictor{
+		"-h":     predict.Nothing,
+		"--help": predict.Nothing,
+	},
+}
+
+// printHelpCalc prints the help message for the "calc" command.
+func printHelpCalc() {
+	fmt.Printf(
+		`Usage: %s calc <expression> [<opts>]
+
+Description:
+  Evaluate a mathematical expression and print the result.
+
+Examples:
+  %[1]s calc "2*2828-1"
+  %[1]s calc "190.87.89.1*2"
+  %[1]s calc "2001:0db8:85a3:0000:0000:8a2e:0370:7334*6"
+
+Options:
+  General:
+    --help, -h
+      show help.
+`, progBase)
+}
+
+// cmdCalc is the handler for the "calc" command.
+func cmdCalc() error {
+	f := lib.CmdCalcFlags{}
+	f.Init()
+	pflag.Parse()
+
+	return lib.CmdCalc(f, pflag.Args()[1:], printHelpCalc)
+}

ipinfo/cmd_default.go

@@ -32,6 +32,7 @@ Commands:
   randip      Generates random IPs.
   splitcidr   splits a larger CIDR into smaller CIDRs.
   mmdb        read, import and export mmdb files.
+  calc 	      evaluates a mathematical expression that may contain IP addresses.
   tool        misc. tools related to IPs, IP ranges and CIDRs.
   download    download free ipinfo database files.
   cache       manage the cache.

ipinfo/cmd_tool.go

@@ -12,6 +12,9 @@ import (
 var completionsTool = &complete.Command{
 	Sub: map[string]*complete.Command{
 		"aggregate": completionsToolAggregate,
+		"ip2n":      completionsToolIP2n,
+		"n2ip":      completionsToolN2IP,
+		"n2ip6":     completionsToolN2IP6,
 	},
 	Flags: map[string]complete.Predictor{
 		"-h":     predict.Nothing,
@@ -26,6 +29,9 @@ func printHelpTool() {
 
 Commands:
   aggregate    aggregate IPs, IP ranges, and CIDRs.
+  ip2n         converts an IPv4 or IPv6 address to its decimal representation.
+  n2ip	       evaluates a mathematical expression and converts it to an IPv4 or IPv6.
+  n2ip6	       evaluates a mathematical expression and converts it to an IPv6.
 
 Options:
   --help, -h
@@ -56,6 +62,12 @@ func cmdTool() error {
 	switch {
 	case cmd == "aggregate":
 		err = cmdToolAggregate()
+	case cmd == "ip2n":
+		err = cmdToolIP2n()
+	case cmd == "n2ip":
+		err = cmdToolN2IP()
+	case cmd == "n2ip6":
+		err = cmdToolN2IP6()
 	default:
 		err = toolHelp()
 	}

ipinfo/cmd_tool_ip2n.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"fmt"
+	"github.com/ipinfo/cli/lib"
+	"github.com/ipinfo/cli/lib/complete"
+	"github.com/ipinfo/cli/lib/complete/predict"
+	"github.com/spf13/pflag"
+)
+
+var completionsToolIP2n = &complete.Command{
+	Flags: map[string]complete.Predictor{
+		"-h":     predict.Nothing,
+		"--help": predict.Nothing,
+	},
+}
+
+// printHelpToolIp2n prints the help message for the "ip2n" command.
+func printHelpToolIp2n() {
+	fmt.Printf(
+		`Usage: %s tool ip2n <ip>
+
+Description:
+  Converts an IPv4 or IPv6 address to its decimal representation.
+
+Examples:
+  %[1]s ip2n "190.87.89.1"
+  %[1]s ip2n "2001:0db8:85a3:0000:0000:8a2e:0370:7334"
+  %[1]s ip2n "2001:0db8:85a3::8a2e:0370:7334"
+  %[1]s ip2n "::7334"
+  %[1]s ip2n "7334::"
+
+Options:
+  General:
+    --help, -h
+      show help.
+`, progBase)
+}
+
+// cmdToolIP2n is the handler for the "ip2n" command.
+func cmdToolIP2n() error {
+	f := lib.CmdToolIP2nFlags{}
+	f.Init()
+	pflag.Parse()
+
+	return lib.CmdToolIP2n(f, pflag.Args()[2:], printHelpToolIp2n)
+}

ipinfo/cmd_tool_n2ip.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"fmt"
+	"github.com/ipinfo/cli/lib"
+	"github.com/ipinfo/cli/lib/complete"
+	"github.com/ipinfo/cli/lib/complete/predict"
+	"github.com/spf13/pflag"
+)
+
+// cmdToolN2IP is the handler for the "n2ip" command.
+var completionsToolN2IP = &complete.Command{
+	Flags: map[string]complete.Predictor{
+		"-h":     predict.Nothing,
+		"--help": predict.Nothing,
+		"-6":     predict.Set(predictReadFmts),
+		"--ipv6": predict.Set(predictReadFmts),
+	},
+}
+
+// printHelpToolN2IP prints the help message for the "n2ip" command.
+func printHelpToolN2IP() {
+	fmt.Printf(
+		`Usage: %s n2ip tool [<opts>] <number>
+
+Description:
+  Converts a given numeric representation to its corresponding IPv4 or IPv6 address,
+  and can also evaluate a mathematical expression for conversion.
+
+Examples:
+  %[1]s n2ip "4294967295 + 87"
+  %[1]s n2ip "4294967295" --ipv6
+  %[1]s n2ip -6 "201523715"
+  %[1]s n2ip "51922968585348276285304963292200960"
+  %[1]s n2ip "a:: - 4294967295"
+
+Options:
+  General:
+    --help, -h
+      show help.
+    --ipv6, -6
+      force conversion to IPv6 address
+`, progBase)
+}
+
+// cmdToolN2IP is the handler for the "n2ip" command.
+func cmdToolN2IP() error {
+	f := lib.CmdToolN2IPFlags{}
+	f.Init()
+	pflag.Parse()
+
+	return lib.CmdToolN2IP(f, pflag.Args()[2:], printHelpToolN2IP)
+}

ipinfo/cmd_tool_n2ip6.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"fmt"
+	"github.com/ipinfo/cli/lib"
+	"github.com/ipinfo/cli/lib/complete"
+	"github.com/ipinfo/cli/lib/complete/predict"
+	"github.com/spf13/pflag"
+)
+
+var completionsToolN2IP6 = &complete.Command{
+	Flags: map[string]complete.Predictor{
+		"-h":     predict.Nothing,
+		"--help": predict.Nothing,
+	},
+}
+
+// printHelpToolN2IP6 prints the help message for the "n2ip6" command.
+func printHelpToolN2IP6() {
+	fmt.Printf(
+		`Usage: %s tool n2ip6 [<opts>] <number>
+
+Description:
+  Converts a given numeric representation to its corresponding IPv6 address,
+  and can also evaluate a mathematical expression for conversion.
+
+Examples:
+  %[1]s n2ip6 "4294967295 + 87"
+  %[1]s n2ip6 "4294967295"
+  %[1]s n2ip6 "201523715"
+  %[1]s n2ip6 "51922968585348276285304963292200960"
+  %[1]s n2ip6 "a:: - 4294967295"
+
+Options:
+  General:
+    --help, -h
+      show help.
+`, progBase)
+}
+
+// cmdToolN2IP6 is the handler for the "n2ip6" command.
+func cmdToolN2IP6() error {
+	f := lib.CmdToolN2IP6Flags{}
+	f.Init()
+	pflag.Parse()
+
+	return lib.CmdToolN2IP6(f, pflag.Args()[2:], printHelpToolN2IP6)
+}

ipinfo/completions.go

@@ -23,6 +23,7 @@ var completions = &complete.Command{
 		"randip":     completionsRandIP,
 		"splitcidr":  completionsSplitCIDR,
 		"mmdb":       completionsMmdb,
+		"calc":       completionsCalc,
 		"tool":       completionsTool,
 		"download":   completionsDownload,
 		"cache":      completionsCache,

ipinfo/main.go

@@ -67,6 +67,8 @@ func main() {
 		err = cmdSplitCIDR()
 	case cmd == "mmdb":
 		err = cmdMmdb()
+	case cmd == "calc":
+		err = cmdCalc()
 	case cmd == "download":
 		err = cmdDownload()
 	case cmd == "tool":