ref(tools/ipconverter): rewrite the tool in python

No need to do this with Go, a python script is fine.

We also don't need to set shell aliases for this: when we install the
tool, we can create symbolic links to `ip2int` and `int2ip`.

1 files changed, 0 insertions, 63 deletions

diff --git a/tools/ipconverter/main.go b/tools/ipconverter/main.go
deleted file mode 100644
index 42baf7c..0000000
--- a/tools/ipconverter/main.go
+++ /dev/null
@@ -1,63 +0,0 @@
-package main
-
-import (
-	"encoding/binary"
-	"fmt"
-	"math/big"
-	"net"
-	"os"
-	"path"
-	"strconv"
-)
-
-func main() {
-	if len(os.Args) < 2 {
-		fmt.Fprintf(os.Stderr, "usage: %s <ip2int|int2ip> <values>\n", os.Args[0])
-		os.Exit(1)
-	}
-
-	cmd := path.Base(os.Args[1])
-
-	switch cmd {
-	case "ip2int":
-		for _, ip := range os.Args[2:] {
-			r, err := IPtoInt(ip)
-			if err != nil {
-				fmt.Fprintf(os.Stderr, "failed to parse %s to an int: %s\n", ip, err)
-				continue
-			}
-			fmt.Printf("%s\t%d\n", ip, r)
-		}
-	case "int2ip":
-		for _, ip := range os.Args[2:] {
-			r, err := IPtoN(ip)
-			if err != nil {
-				fmt.Fprintf(os.Stderr, "failed to parse %s to an addresse IP: %s\n", ip, err)
-				continue
-			}
-			fmt.Printf("%s\t%s\n", ip, r)
-		}
-	default:
-		fmt.Fprintf(os.Stderr, "`%s' is not a supported command\n", cmd)
-		os.Exit(1)
-	}
-}
-
-func IPtoInt(ip string) (*big.Int, error) {
-	i := net.ParseIP(ip)
-	if len(i.To4()) == 4 {
-		return big.NewInt(0).SetBytes(i.To4()), nil
-	} else {
-		return nil, fmt.Errorf("%s is not an IPv4 address", ip)
-	}
-}
-
-func IPtoN(ip string) (string, error) {
-	r, err := strconv.Atoi(ip)
-	if err != nil {
-		return "", fmt.Errorf("failed to parse %s to an int: %s", ip, err)
-	}
-	newIP := make(net.IP, 4)
-	binary.BigEndian.PutUint32(newIP, uint32(r))
-	return newIP.To4().String(), nil
-}