r00t2/go_subnetter
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v0.2.5

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ADDED:
* num-addrs subcommand, to get the number of hosts/addresses in a given
  prefix length
* get-net subcommand, to more easily get a single subnet from either the
  beginning or the end of a prefix. (MUCH FASTER than CIDR-splitting!)
This commit is contained in:
brent saner
2025-04-13 18:25:32 -04:00
parent c05f9c4d47
commit 860ad5842b
16 changed files with 334 additions and 78 deletions
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5
cmd/subnetter/funcs.go
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@@ -15,7 +15,6 @@ import (
"time"
"github.com/goccy/go-yaml"
"github.com/projectdiscovery/mapcidr"
"go4.org/netipx"
"r00t2.io/subnetter/netsplit"
"r00t2.io/subnetter/version"
@@ -159,8 +158,8 @@ func printMask(label string, pfx netip.Prefix, verb, indent int, indentStr strin
fmt.Fprintf(sb, "%sBits:\t\t%d\n", pre2, pfx.Bits())
fmt.Fprintf(sb, "%sFirst:\t\t%s\n", pre2, first.String())
fmt.Fprintf(sb, "%sLast:\t\t%s\n", pre2, last.String())
fmt.Fprintf(sb, "%sAddresses:\t%d\n", pre2, mapcidr.CountIPsInCIDR(true, true, netipx.PrefixIPNet(pfx.Masked())))
fmt.Fprintf(sb, "%sHosts:\t\t%d\n", pre2, mapcidr.CountIPsInCIDR(false, false, netipx.PrefixIPNet(pfx.Masked())))
fmt.Fprintf(sb, "%sAddresses:\t%d\n", pre2, netsplit.NumAddrsPfx(pfx.Masked(), true, true))
fmt.Fprintf(sb, "%sHosts:\t\t%d\n", pre2, netsplit.NumAddrsPfx(pfx.Masked(), false, false))
if verb >= 2 {
fmt.Fprintf(sb, "%sExpanded:\t%s\n", pre2, netsplit.MaskExpand(mask, pfx.Addr().Is6()))
fmt.Fprintf(sb, "%sHex:\t\t0x%s\n", pre2, mask.String())