Bypass bitwise NOT

Author: ip2location-com

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2023-2026 IP2Location
+Copyright (c) 2023 - 2026 IP2Location
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -19,4 +19,3 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
-

docs/source/conf.py

@@ -6,11 +6,11 @@
 # -- Project information
 
 project = 'IP2Location Lua'
-copyright = '2025, IP2Location'
+copyright = '2026, IP2Location'
 author = 'IP2Location'
 
-release = '8.8.0'
-version = '8.8.0'
+release = '8.8.1'
+version = '8.8.1'
 
 # -- General configuration
 

ip2location-8.8.0-1.rockspec ip2location-8.8.1-1.rockspecip2location-8.8.0-1.rockspec renamed to ip2location-8.8.1-1.rockspec

@@ -1,5 +1,5 @@
 package = "ip2location"
-version = "8.8.0-1"
+version = "8.8.1-1"
 source = {
    url = "git://github.com/ip2location/ip2location-lua.git"
 }

ip2location.lua

@@ -148,7 +148,7 @@ local asdomain_position = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
 local asusagetype_position = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 27 }
 local ascidr_position = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 28 }
 
-local api_version = "8.8.0"
+local api_version = "8.8.1"
 
 local modes = {
   countryshort = 0x0000001,
@@ -618,9 +618,8 @@ function ip2location:checkip(ip)
       ipnum = bn(ipnum2) -- convert back to bn
     elseif ipnum >= from_teredo and ipnum <= to_teredo then -- Teredo
       override = 1
-      ipnum = ~ipnum
-      ipnum2 = ipnum:asnumber() & 0xffffffff
-      ipnum = bn(ipnum2) -- convert back to bn
+      -- invert lower 32 bits only (bypass the bnot from the bn coz of weird error)
+      ipnum = bn(0xffffffff) - (ipnum & bn(0xffffffff))
     end
 
     local ipindex = 0