Rename 'nameserver' to 'nameservers' for consistency

Updated variable naming from 'nameserver' to 'nameservers' across dnssearch and hostchecker modules to ensure consistency and clarity. This change aligns the naming convention with its pluralized usage, improving code readability.

theHarvester/discovery/dnssearch.py

@@ -39,7 +39,7 @@ class DnsForce:
 
     async def run(self):
         print(f'Starting DNS brute forcing with {len(self.list)} words')
-        checker = hostchecker.Checker(self.list, nameserver=self.dnsserver)
+        checker = hostchecker.Checker(self.list, nameservers=self.dnsserver)
         resolved_pair, hosts, ips = await checker.check()
         return resolved_pair, hosts, ips
 

theHarvester/lib/hostchecker.py

@@ -15,11 +15,11 @@ import aiodns
 
 
 class Checker:
-    def __init__(self, hosts: list, nameserver: list) -> None:
+    def __init__(self, hosts: list, nameservers: list) -> None:
         self.hosts = hosts
         self.realhosts: list = []
         self.addresses: set = set()
-        self.nameserver = nameserver
+        self.nameservers = nameservers
 
     # @staticmethod
     # async def query(host, resolver) -> Tuple[str, Any]:
@@ -64,8 +64,8 @@ class Checker:
         loop = asyncio.get_event_loop()
         resolver = (
             aiodns.DNSResolver(loop=loop, timeout=8)
-            if len(self.nameserver) == 0
-            else aiodns.DNSResolver(loop=loop, timeout=8, nameservers=self.nameserver)
+            if len(self.nameservers) == 0
+            else aiodns.DNSResolver(loop=loop, timeout=8, nameservers=self.nameservers)
         )
         all_results = set()
         for chunk in self.chunks(self.hosts, 50):