v1.17.5

ADDED:
* netx/dnsx/ptr package

iox/fsx/doc.go

@@ -0,0 +1,4 @@
+/*
+Package fsx provides some enhancements to [io/fs].
+*/
+package fsx

iox/fsx/funcs.go

@@ -0,0 +1,118 @@
+package fsx
+
+import (
+	"go/types"
+	"io/fs"
+	"path/filepath"
+)
+
+// TODO: FilterFsPaths
+
+/*
+FsPaths returns all paths in [io/fs.FS] `fsys`.
+
+If `fsys` is nil, both `fsPaths` and `err` will be nil.
+
+`t` should be an OR'd [io/fs.FileMode] containing all filetypes that should be included.
+Use [io/fs.ModeType] to match any non-regular-file object, or 0 to explicitly match regular files.
+If `t` is non-zero but you wish to ALSO include regular files, then specify `inclFiles` as true.
+(`inclFiles` is ignored if `t` == 0, as this inherently matches regular files only/explicitly.)
+See [HasType] for more information on this filtering.
+
+`maxDepth` can be used to limit recursion depth.
+
+  - If `maxDepth` == 0, only direct [io/fs.DirEntry] descendants of `fsys`
+    will be included in `fsPaths`.
+  - If `maxDepth` < 0, ALL [io/fs.DirEntry] descendants of `fsys`
+    will be included in `fsPaths`.
+  - If `maxDepth` > 0, then only children at a depth of this level or lower
+    ("higher" in a hierarchy) will be included in `fsPaths`.
+*/
+func FsPaths(fsys fs.FS, t fs.FileMode, inclFiles bool, maxDepth int) (fsPaths map[string]fs.DirEntry, err error) {
+
+	var idx int
+	var entries []fs.DirEntry
+	var t fs.FileMode = types.Type()
+
+	if fsys == nil {
+		return
+	}
+
+	if fsPaths, err = getEntries(fsys, t, inclFiles, maxDepth, "."); err != nil {
+		return
+	}
+
+	return
+}
+
+/*
+HasType is just a convenience wrapper for:
+
+	hasType = m & t != 0
+
+The type(s) will be explicitly extracted from `m` and `t` first.
+
+Note that if `t` is an OR'd set of filetypes, then HasType will return true if ANY of the types
+in `t` match `m`'s type (see [r00t2.io/goutils/bitmask] for more information on bitmasking).
+If you wish to check if `m` is A SINGLE type, either ensure that `t` is not OR'd
+(i.e. is a single fs.FileMode type) or use [IsType] instead.
+*/
+func HasType(m, t fs.FileMode) (hasType bool) { return m.Type()&t.Type() != 0 }
+
+/*
+IsType is just a convenience wrapper for:
+
+	isType = m & t == t
+
+The type(s) will be explicitly extracted from `m` and `t` first.
+
+Note that if `t` is an OR'd set of filetypes, then IsType will *never* return true
+as its type is single-valued/not bitmasked (see [r00t2.io/goutils/bitmask] for more information
+on bitmasking).
+If you wish to check if `m` is ONE OF multiple types in `t`, use [HasType] instead.
+*/
+func IsType(m, t fs.FileMode) (isType bool) { return m&t == t }
+
+/*
+getEntries is used to recursively fetch entries from `fsys`.
+
+It mostly serves as the recursion for [FsPaths], and the arguments
+retain their exact meaning except that it requires `relPath`
+and `maxDepth` (if > 0) will be decremanted in each recursion.
+*/
+func getEntries(fsys fs.FS, t fs.FileMode, inclFiles bool, maxDepth int, relPath string) (fsPaths map[string]fs.DirEntry, err error) {
+
+	var idx int
+	var p string
+	var k string
+	var v fs.DirEntry
+	var e []fs.DirEntry
+	var subs map[string]fs.DirEntry = make(map[string]fs.DirEntry)
+
+	if e, err = fs.ReadDir(fsys, relPath); err != nil {
+		return
+	}
+
+	fsPaths = make(map[string]fs.DirEntry)
+
+	for idx = range e {
+		p = filepath.Join(relPath, e[idx].Name())
+		if e[idx].IsDir() {
+			if subs, err = getEntries(fsys, t, inclFiles, maxDepth, p); err != nil {
+				return
+			}
+			for k, v = range subs {
+				fsPaths[k] = v
+			}
+		}
+		if t != 0 {
+			if HasType(t, e[idx].Type()) {
+				fsPaths[p] = e[idx]
+			}
+		} else if inclFiles && e[idx].Type() == 0 {
+			fsPaths[p] = e[idx]
+		}
+	}
+
+	return
+}

netx/TODO

@@ -0,0 +1 @@
+- does IsAdd4Compat work properly with loopback ::1?

netx/dnsx/funcs.go

@@ -1,16 +1,16 @@
 package dnsx
 
 import (
-	`bytes`
-	`encoding/base32`
-	`fmt`
-	`math`
-	`net`
-	`net/netip`
-	`strings`
+	"bytes"
+	"encoding/base32"
+	"fmt"
+	"math"
+	"net"
+	"net/netip"
+	"strings"
 
-	`go4.org/netipx`
-	`r00t2.io/goutils/stringsx`
+	"go4.org/netipx"
+	"r00t2.io/goutils/stringsx"
 )
 
 /*
@@ -238,19 +238,19 @@ TXT records, etc. - not A/AAAA/CNAME, etc. - see RFC 8553 for details.
 See the following functions for allowing additional syntax/rule validation
 that have record-type-specific accommodations made:
 
-	* [IsFqdnDefinedTxt]
-	* [IsFqdnNsec3]
-	* [IsFqdnSrv]
-	* [IsFqdnWildcard]
+  - [IsFqdnDefinedTxt]
+  - [IsFqdnNsec3]
+  - [IsFqdnSrv]
+  - [IsFqdnWildcard]
 
 # RFC Coverage
 
 This function should conform properly to:
 
-	* RFC 952
-	* RFC 1034 and RFC 1035
-	* RFC 1123
-	* RFC 2181 (selectively, see above)
+  - RFC 952
+  - RFC 1034 and RFC 1035
+  - RFC 1123
+  - RFC 2181 (selectively, see above)
 
 preferring the most up-to-date rules where relevant (e.g. labels may start with digits, as per RFC 1123).
 It enforces/checks label and overall length limits as defined by RFC.
@@ -265,12 +265,12 @@ the caller must perform translation first
 
 To reiterate, IDN/IDNA:
 
-	* RFC 3490
-	* RFC 5890
-	* RFC 5891
-	* RFC 5892
-	* RFC 5893
-	* RFC 5894
+  - RFC 3490
+  - RFC 5890
+  - RFC 5891
+  - RFC 5892
+  - RFC 5893
+  - RFC 5894
 
 and Punycode (RFC 3492) *MUST* use their ASCII forms, NOT the localized/Unicode formats.
 
@@ -299,18 +299,18 @@ func IsFqdn(s string) (fqdn bool) {
 IsFqdnDefinedTxt is like [IsFqdn] but explicitly *only* allows fully-qualified
 RFC-defined TXT "subtypes":
 
-	* ACME DNS-01 (RFC 8555)
-	* BIMI (RFC draft [bimi])
-	* DKIM (RFC 6376,  RFC 8301, RFC 8463)
-	* DKIM ATPS (RFC 6541)
-	* DMARC (RFC 7489, RFC 9091, RFC 9616)
-	* MTA-STS (RFC 8461)
-	* TLSRPT (RFC 8460)
+  - ACME DNS-01 (RFC 8555)
+  - BIMI (RFC draft [bimi])
+  - DKIM (RFC 6376,  RFC 8301, RFC 8463)
+  - DKIM ATPS (RFC 6541)
+  - DMARC (RFC 7489, RFC 9091, RFC 9616)
+  - MTA-STS (RFC 8461)
+  - TLSRPT (RFC 8460)
 
 Note that the following TXT "subtypes" do not have special formatting in labels/name,
 and thus are not covered by this function:
 
-	* SPF (RFC 4408, RFC 7208)
+  - SPF (RFC 4408, RFC 7208)
 
 [bimi]: https://datatracker.ietf.org/doc/html/draft-brand-indicators-for-message-identification
 */
@@ -359,15 +359,15 @@ can't be 100% confirmed with certainty - only basic checks can be done.
 
 NSEC3 can be found via:
 
-	* RFC 5155
-	* RFC 6840
-	* RFC 6944
-	* RFC 7129
-	* RFC 8198
-	* RFC 9077
-	* RFC 9157
-	* RFC 9276
-	* RFC 9905
+  - RFC 5155
+  - RFC 6840
+  - RFC 6944
+  - RFC 7129
+  - RFC 8198
+  - RFC 9077
+  - RFC 9157
+  - RFC 9276
+  - RFC 9905
 
 At the time of writing, only one hashing algorithm (SHA-1) has been specified.
 However, because this function does not check against the IANA registration at runtime,
@@ -524,6 +524,22 @@ func IsPtr(s string) (isPtr bool, addr net.IP) {
 	return
 }
 
+// IsPtrAddr is like IsPtr but only returns the `addr` value.
+func IsPtrAddr(s string) (addr net.IP) {
+
+	_, addr = IsPtr(s)
+
+	return
+}
+
+// IsPtrChk is like IsPtr but only returns the `isPtr` value.
+func IsPtrChk(s string) (isPtr bool) {
+
+	isPtr, _ = IsPtr(s)
+
+	return
+}
+
 // commonFqdn is used to validate some rules common to all record names.
 func commonFqdn(s string) (isOk bool) {
 

netx/dnsx/ptr/consts.go

@@ -0,0 +1,7 @@
+package ptr
+
+const (
+	TLD   string = "arpa"
+	Zone4 string = "in-addr." + TLD
+	Zone6 string = "ip6." + TLD
+)

netx/dnsx/ptr/doc.go

@@ -0,0 +1,5 @@
+/*
+Package ptr includes some helper functions for working with PTR records/zones
+and mapping/converting them to/from [net/netip.Addr] and [net/netip.Prefix] representations respectively.
+*/
+package ptr

netx/dnsx/ptr/errs.go

@@ -0,0 +1,11 @@
+package ptr
+
+import (
+	"errors"
+)
+
+var (
+	ErrInvalidBounds error = errors.New("invalid PTR boundary")
+	ErrInvalidPfx    error = errors.New("invalid prefix")
+	ErrInvalidPtr    error = errors.New("invalid PTR")
+)

netx/dnsx/ptr/funcs.go

@@ -0,0 +1,266 @@
+package ptr
+
+import (
+	"encoding/hex"
+	"fmt"
+	"net"
+	"net/netip"
+	"slices"
+	"strconv"
+	"strings"
+
+	"github.com/miekg/dns"
+	"go4.org/netipx"
+	"r00t2.io/subnetter/netsplit"
+)
+
+// AddrPtr returns the PTR lookup name of IP address ip (as a [net/netip.Addr]), normalized (lowercased and no trailing dot).
+func AddrPtr(ip netip.Addr) (ptr string, err error) { return IpStrPtr(ip.String()) }
+
+// IpPtr returns the PTR lookup name of IP address ip (as a [net.IP]), normalized (lowercased and no trailing dot).
+func IpPtr(ip net.IP) (ptr string, err error) { return IpStrPtr(ip.String()) }
+
+// IpStrPtr returns the PTR lookup name of IP address ip (as a string), normalized (lowercased and no trailing dot).
+func IpStrPtr(ip string) (ptr string, err error) {
+
+	if ptr, err = dns.ReverseAddr(ip); err != nil {
+		return
+	}
+
+	ptr = normalizePtr(ptr)
+
+	return
+}
+
+/*
+PfxToPtr returns the PTR zone name(s) for a specified prefix.
+Any host bits set in pfx will be masked off without error
+(e.g. 192.0.2.20/24 -> 192.0.2.0/24).
+
+err will be [ErrInvalidBounds] if pfx prefix length is longer than a /24 (e.g. a /32) for IPv4
+or longer than the last/shorter than the first 4-bit/nibble/nybble boundary - /124 (e.g. a /128)
+and /4 respectively - for IPv6.
+*/
+func PfxToPtr(pfx netip.Prefix) (ptrZones []string, err error) {
+
+	var idx int
+	var tgtSz uint8
+	var n *net.IPNet
+	var maxBitLen int
+	var pfxs []*netip.Prefix
+	var c *netsplit.CIDRSplitter
+
+	if !pfx.IsValid() {
+		err = ErrInvalidPfx
+		return
+	}
+
+	pfx = pfx.Masked()
+
+	if pfx.Addr().Is4() {
+		maxBitLen = 24
+		if pfx.Bits() <= 24 {
+			tgtSz = 24
+		}
+		if pfx.Bits() <= 16 {
+			tgtSz = 16
+		}
+		if pfx.Bits() <= 8 {
+			tgtSz = 8
+		}
+	} else {
+		maxBitLen = 124
+		if pfx.Bits() < 4 {
+			err = ErrInvalidBounds
+			return
+		}
+		tgtSz = uint8(pfx.Bits())
+		for tgtSz%4 != 0 {
+			tgtSz++
+		}
+	}
+	if pfx.Bits() > maxBitLen {
+		err = ErrInvalidBounds
+		return
+	}
+
+	c = &netsplit.CIDRSplitter{
+		PrefixLength: tgtSz,
+		BaseSplitter: new(netsplit.BaseSplitter),
+	}
+	n = netipx.PrefixIPNet(pfx)
+	c.BaseSplitter.SetParent(*n)
+
+	if pfxs, _, err = c.Split(); err != nil {
+		return
+	}
+
+	ptrZones = make([]string, len(pfxs))
+	for idx = range pfxs {
+		ptrZones[idx] = pfxZonePtr(*pfxs[idx])
+	}
+
+	return
+}
+
+// PtrToAddr returns a [net/netip.Addr] from a PTR record name.
+func PtrToAddr(ptr string) (addr netip.Addr, err error) {
+
+	var pfx netip.Prefix
+
+	if pfx, err = PtrToPfx(ptr); err != nil {
+		return
+	}
+	addr = pfx.Addr()
+
+	return
+}
+
+/*
+PtrToPfx returns a [net/netip.Prefix] from a PTR zone (or record).
+
+The same boundary rules as [PfxToPtr] are in place; delegated subzones (RFC 2317) are not supported.
+If an invalid PTR is received, err will be [ErrInvalidPtr].
+*/
+func PtrToPfx(ptr string) (pfx netip.Prefix, err error) {
+
+	var idx int
+	var ok bool
+	var b []byte
+	var sfx string
+	var cidr uint8
+	var spl []string
+	var addr netip.Addr
+
+	ptr = normalizePtr(ptr)
+	spl = strings.Split(ptr, ".")
+	if len(spl) < 2 {
+		err = ErrInvalidPtr
+		return
+	}
+	sfx = strings.Join(spl[len(spl)-2:], ".")
+	spl = strings.Split(normalizePtr(strings.TrimSuffix(ptr, sfx)), ".")
+
+	slices.Reverse(spl)
+
+	switch sfx {
+	case Zone4:
+		switch len(spl) {
+		case 0:
+			cidr = 0
+			spl = []string{"0", "0", "0", "0"}
+		case 1, 2, 3, 4:
+			cidr = uint8(len(spl) * 8)
+			for len(spl) < 4 {
+				spl = append(spl, "0")
+			}
+		default:
+			err = ErrInvalidPtr
+			return
+		}
+		if addr, err = netip.ParseAddr(
+			strings.Join(spl, "."),
+		); err != nil {
+			return
+		}
+	case Zone6:
+		if len(spl) > 32 {
+			err = ErrInvalidPtr
+			return
+		}
+		if len(spl) == 0 {
+			cidr = 0
+			spl = make([]string, 32)
+			for idx = 0; idx < len(spl); idx++ {
+				spl[idx] = "0"
+			}
+		} else {
+			cidr = uint8(len(spl) * 4)
+			for len(spl) < 32 {
+				spl = append(spl, "0")
+			}
+		}
+		if b, err = hex.DecodeString(
+			strings.ToLower(strings.Join(spl, "")),
+		); err != nil {
+			return
+		}
+		if addr, ok = netip.AddrFromSlice(b); !ok {
+			err = ErrInvalidPfx
+			return
+		}
+	default:
+		err = ErrInvalidPtr
+		return
+	}
+
+	if pfx, err = addr.Prefix(int(cidr)); err != nil {
+		return
+	}
+
+	return
+}
+
+func normalizePtr(ptr string) (norm string) { return strings.ToLower(strings.TrimRight(ptr, ".")) }
+
+func pfxZonePtr(pfx netip.Prefix) (ptr string) {
+
+	if pfx.Addr().Is4() {
+		ptr = pfxZonePtr4(pfx)
+	} else {
+		ptr = pfxZonePtr6(pfx)
+	}
+
+	return
+}
+
+func pfxZonePtr4(pfx netip.Prefix) (ptr string) {
+
+	var idx int
+	var b []byte
+	var s []string
+
+	idx = pfx.Bits() / 8
+
+	b = pfx.Addr().AsSlice()[0:idx]
+	s = make([]string, len(b))
+
+	for i := 0; i < idx; i++ {
+		s[idx-1-i] = strconv.Itoa(int(uint8(b[i])))
+	}
+
+	ptr = strings.Join(s, ".") + "." + Zone4
+
+	return
+}
+
+func pfxZonePtr6(pfx netip.Prefix) (ptr string) {
+
+	var b byte
+	var nib byte
+	var numNibs int
+	var b16 [16]byte
+	var sb *strings.Builder = new(strings.Builder)
+
+	numNibs = pfx.Bits() / 4
+	b16 = pfx.Addr().As16()
+
+	for i := numNibs - 1; i >= 0; i-- {
+		b = b16[i/2]
+		if i%2 == 0 {
+			nib = b >> 4
+		} else {
+			nib = b & 0x0f
+		}
+		fmt.Fprintf(
+			sb,
+			"%x.",
+			nib,
+		)
+	}
+	sb.WriteString(Zone6)
+
+	ptr = sb.String()
+
+	return
+}

slicesx/doc.go

@@ -1,4 +1,7 @@
 /*
 Package slicesx aims to extend functionality of the stdlib [slices] module.
+
+Most are convenience functions that aid in readability (sometimes at a VERY negligible performance hit),
+but others can be quite useful (e.g. [Remove], [RemoveAll], [RemoveReverse]) that will save on significant boilerplate.
 */
 package slicesx

slicesx/funcs.go

@@ -1,10 +1,51 @@
 package slicesx
 
+import (
+	"slices"
+)
+
+/*
+First returns the first item/element in slice s.
+
+e will be the nil/zero value of the slice element type
+if the slice length is 0 (including if s == nil).
+*/
+func First[S ~[]E, E any](s S) (e E) {
+
+	if len(s) == 0 {
+		return
+	}
+
+	e = s[0]
+
+	return
+}
+
+/*
+FirstIndex returns the index of the first element in slice s.
+
+While at first glance this may seem useless, it may have some usecases as instead of causing panics:
+
+  - If s is empty, idx will be -1.
+  - If s is nil, idx will be -2.
+  - Otherwise idx will ALWAYS be 0.
+*/
+func FirstIndex[S ~[]E, E any](s S) (idx int) {
+
+	if s == nil {
+		idx = -2
+	} else if len(s) == 0 {
+		idx = -1
+	}
+
+	return
+}
+
 /*
 Last returns the last item/element in slice s.
 
 e will be the nil/zero value of the slice element type
-if the slice length is 0.
+if the slice length is 0 (including if s == nil).
 */
 func Last[S ~[]E, E any](s S) (e E) {
 
@@ -41,3 +82,107 @@ func LastIndex[S ~[]E, E any](s S) (idx int) {
 
 	return
 }
+
+/*
+Remove removes any values of value elem from slice s up to max number of elems.
+
+If maxRemove is negative (< 0), start from the end instead.
+This simply wraps [RemoveReverse]:
+
+	removed = slicesx.RemoveReverse(s, elem, uint(-maxRemove))
+
+If maxRemove is exactly 0, remove ALL instances of elem.
+
+If s is nil, removed will be nil as well.
+
+Note that s will remain untouched, and removed will be a new slice.
+*/
+func Remove[S ~[]E, E comparable](s S, elem E, maxRemove int) (removed S) {
+
+	var idx int
+
+	if s == nil {
+		return
+	}
+	if len(s) == 0 {
+		removed = []E{}
+		return
+	}
+
+	removed = make(S, 0, len(s))
+	defer func() {
+		if removed != nil {
+			removed = slices.Clip(removed)
+		}
+	}()
+
+	if maxRemove < 0 {
+		removed = RemoveReverse(s, elem, uint(-maxRemove))
+		return
+	} else if maxRemove == 0 {
+		maxRemove = len(s)
+	}
+
+	for idx = range s {
+		if s[idx] == elem && maxRemove > 0 {
+			maxRemove--
+			continue
+		}
+		removed = append(removed, s[idx])
+	}
+
+	return
+}
+
+/*
+RemoveAll is simply a convenience wrapper around [Remove], e.g.:
+
+	removed = slicesx.Remove(s, elem, 0)
+*/
+func RemoveAll[S ~[]E, E comparable](s S, elem E) (removed S) { return Remove(s, elem, 0) }
+
+/*
+RemoveReverse removes any values of value elem from slice s up to max number of elems in reverse order
+(i.e. starting from the END of s).
+
+If maxRemove is exactly 0, remove all instances of elem (via [RemoveAll]), i.e.:
+
+	removed = slicesx.RemoveAll(s, elem)
+	// or, more directly:
+	removed = slicesx.Remove(s, elem, 0)
+
+If s is nil, removed will be nil as well.
+
+Note that s will remain untouched, and removed will be a new slice.
+*/
+func RemoveReverse[S ~[]E, E comparable](s S, elem E, maxRemove uint) (removed S) {
+
+	var idx int
+
+	if s == nil {
+		return
+	}
+	if len(s) == 0 {
+		removed = []E{}
+		return
+	}
+
+	if maxRemove == 0 {
+		removed = RemoveAll(s, elem)
+		return
+	}
+
+	removed = make(S, 0, len(s))
+
+	for idx = len(s) - 1; idx >= 0; idx-- {
+		if s[idx] == elem && maxRemove > 0 {
+			maxRemove--
+			continue
+		}
+		removed = append(removed, s[idx])
+	}
+	removed = slices.Clip(removed)
+	slices.Reverse(removed)
+
+	return
+}

tplx/sprigx/README.html

@@ -636,7 +636,7 @@ pre.rouge .gs {
 <div class="details">
 <span id="author" class="author">Brent Saner</span><br>
 <span id="email" class="email"><a href="mailto:bts@square-r00t.net">bts@square-r00t.net</a></span><br>
-<span id="revdate">Last rendered 2026-07-29 15:05:41 -0400</span>
+<span id="revdate">Last rendered 2026-09-11 22:12:00 -0400</span>
 </div>
 <div id="toc" class="toc2">
 <div id="toctitle">Table of Contents</div>

tplx/sprigx/consts.go

@@ -1,30 +1,30 @@
 package sprigx
 
 import (
-	`net`
-	`net/netip`
-	`os`
-	`os/user`
-	`path`
-	`path/filepath`
-	`runtime`
-	`time`
+	"net"
+	"net/netip"
+	"os"
+	"os/user"
+	"path"
+	"path/filepath"
+	"runtime"
+	"time"
 
-	`github.com/davecgh/go-spew/spew`
-	`github.com/shirou/gopsutil/v4/cpu`
-	`github.com/shirou/gopsutil/v4/disk`
-	`github.com/shirou/gopsutil/v4/host`
-	`github.com/shirou/gopsutil/v4/load`
-	`github.com/shirou/gopsutil/v4/mem`
-	psnet `github.com/shirou/gopsutil/v4/net`
-	`github.com/shirou/gopsutil/v4/process`
-	`github.com/shirou/gopsutil/v4/sensors`
-	`go4.org/netipx`
-	`r00t2.io/goutils/netx`
-	`r00t2.io/goutils/netx/dnsx`
-	`r00t2.io/goutils/stringsx`
-	`r00t2.io/goutils/timex`
-	`r00t2.io/sysutils`
+	"github.com/davecgh/go-spew/spew"
+	"github.com/shirou/gopsutil/v4/cpu"
+	"github.com/shirou/gopsutil/v4/disk"
+	"github.com/shirou/gopsutil/v4/host"
+	"github.com/shirou/gopsutil/v4/load"
+	"github.com/shirou/gopsutil/v4/mem"
+	psnet "github.com/shirou/gopsutil/v4/net"
+	"github.com/shirou/gopsutil/v4/process"
+	"github.com/shirou/gopsutil/v4/sensors"
+	"go4.org/netipx"
+	"r00t2.io/goutils/netx"
+	"r00t2.io/goutils/netx/dnsx"
+	"r00t2.io/goutils/stringsx"
+	"r00t2.io/goutils/timex"
+	"r00t2.io/sysutils"
 )
 
 var (
@@ -98,19 +98,20 @@ var (
 		/*
 			Networking (r00t.io/goutils/netx/dnsx)
 		*/
-		"dnsxPtrAddr": dnsx.AddrFromPtr,
-		"dnsxAddrPtr": dnsx.AddrToPtr,
-		"dnsxStrWire": dnsx.DnsStrToWire,
-		"dnsxWireStr": dnsx.DnsWireToStr,
-		"dnsxPtrIp":   dnsx.IpFromPtr,
-		"dnsxIpPtr":   dnsx.IpToPtr,
-		"dnsxIsFqdn":  dnsx.IsFqdn,
-		"dnsxIsTxt":   dnsx.IsFqdnDefinedTxt,
-		"dnsxIsNsec3": dnsx.IsFqdnNsec3,
-		"dnsxIsSrv":   dnsx.IsFqdnSrv,
-		"dnsxIsWild":  dnsx.IsFqdnWildcard,
-		"dnsxIsLbl":   dnsx.IsLabel,
-		"dnsxIsPtr":   dnsx.IsPtr,
+		"dnsxPtrAddr":   dnsx.AddrFromPtr,
+		"dnsxAddrPtr":   dnsx.AddrToPtr,
+		"dnsxStrWire":   dnsx.DnsStrToWire,
+		"dnsxWireStr":   dnsx.DnsWireToStr,
+		"dnsxPtrIp":     dnsx.IpFromPtr,
+		"dnsxIpPtr":     dnsx.IpToPtr,
+		"dnsxIsFqdn":    dnsx.IsFqdn,
+		"dnsxIsTxt":     dnsx.IsFqdnDefinedTxt,
+		"dnsxIsNsec3":   dnsx.IsFqdnNsec3,
+		"dnsxIsSrv":     dnsx.IsFqdnSrv,
+		"dnsxIsWild":    dnsx.IsFqdnWildcard,
+		"dnsxIsLbl":     dnsx.IsLabel,
+		"dnsxIsPtrAddr": dnsx.IsPtrAddr,
+		"dnsxIsPtr":     dnsx.IsPtrChk,
 		/*
 			Numbers/Math
 		*/