Port to Python 3

.clang-format

@@ -0,0 +1,121 @@
+---
+Language:        Cpp
+# BasedOnStyle:  LLVM
+AccessModifierOffset: -2
+AlignAfterOpenBracket: Align
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlines: Right
+AlignOperands:   true
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: MultiLine
+BinPackArguments: true
+BinPackParameters: true
+BraceWrapping:   
+  AfterClass:      false
+  AfterControlStatement: false
+  AfterEnum:       false
+  AfterFunction:   false
+  AfterNamespace:  false
+  AfterObjCDeclaration: false
+  AfterStruct:     false
+  AfterUnion:      false
+  AfterExternBlock: false
+  BeforeCatch:     false
+  BeforeElse:      false
+  IndentBraces:    false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Attach
+BreakBeforeInheritanceComma: false
+BreakInheritanceList: BeforeColon
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeColon
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: true
+ColumnLimit:     120
+CommentPragmas:  '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat:   false
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+ForEachMacros:   
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+IncludeBlocks:   Preserve
+IncludeCategories: 
+  - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
+    Priority:        2
+  - Regex:           '^(<|"(gtest|gmock|isl|json)/)'
+    Priority:        3
+  - Regex:           '.*'
+    Priority:        1
+IncludeIsMainRegex: '(Test)?$'
+IndentCaseLabels: false
+IndentPPDirectives: None
+IndentWidth:     4
+IndentWrappedFunctionNames: false
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: true
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBinPackProtocolList: Auto
+ObjCBlockIndentWidth: 2
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyBreakTemplateDeclaration: 10
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 60
+PointerAlignment: Right
+ReflowComments:  true
+SortIncludes:    true
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard:        Cpp11
+StatementMacros: 
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
+TabWidth:        8
+UseTab:          Never
+...
+

Example → Example.py

@@ -1,38 +1,41 @@
-#! /usr/bin/env python2
+#! /usr/bin/env python
 
 # pynids Example
 # $Id: Example,v 1.3 2005/01/27 04:53:45 mjp Exp $
 
-import os, pwd
+import os
+import pwd
 import sys
 import nids
 
 NOTROOT = "nobody"   # edit to taste
 end_states = (nids.NIDS_CLOSE, nids.NIDS_TIMEOUT, nids.NIDS_RESET)
 
+
 def handleTcpStream(tcp):
-    print "tcps -", str(tcp.addr), " state:", tcp.nids_state
+    print("tcps -", str(tcp.addr), " state:", tcp.nids_state)
     if tcp.nids_state == nids.NIDS_JUST_EST:
         # new to us, but do we care?
         ((src, sport), (dst, dport)) = tcp.addr
-	print tcp.addr
+        print(tcp.addr)
         if dport in (80, 8000, 8080):
-            print "collecting..."
+            print("collecting...")
             tcp.client.collect = 1
             tcp.server.collect = 1
     elif tcp.nids_state == nids.NIDS_DATA:
         # keep all of the stream's new data
-    	tcp.discard(0)
+        tcp.discard(0)
     elif tcp.nids_state in end_states:
-        print "addr:", tcp.addr
-        print "To server:"
-        print tcp.server.data[:tcp.server.count] # WARNING - may be binary
-        print "To client:"
-        print tcp.client.data[:tcp.client.count] # WARNING - as above
+        print("addr:", tcp.addr)
+        print("To server:")
+        print(tcp.server.data[:tcp.server.count])  # WARNING - may be binary
+        print("To client:")
+        print(tcp.client.data[:tcp.client.count])  # WARNING - as above
+
 
 def main():
 
-    #nids.param("pcap_filter", "tcp")       # bpf restrict to TCP only, note
+    # nids.param("pcap_filter", "tcp")      # bpf restrict to TCP only, note
                                             # libnids caution about fragments
 
     nids.param("scan_num_hosts", 0)         # disable portscan detection
@@ -45,24 +48,25 @@ def main():
     nids.init()
 
     (uid, gid) = pwd.getpwnam(NOTROOT)[2:4]
-    os.setgroups([gid,])
+    os.setgroups([gid, ])
     os.setgid(gid)
     os.setuid(uid)
     if 0 in [os.getuid(), os.getgid()] + list(os.getgroups()):
-        print "error - drop root, please!"
+        print("error - drop root, please!")
         sys.exit(1)
 
     nids.register_tcp(handleTcpStream)
-    print "pid", os.getpid()
+    print("pid", os.getpid())
 
     # Loop forever (network device), or until EOF (pcap file)
     # Note that an exception in the callback will break the loop!
     try:
         nids.run()
-    except nids.error, e:
-        print "nids/pcap error:", e
-    except Exception, e:
-        print "misc. exception (runtime error in user callback?):", e
+    except nids.error as e:
+        print("nids/pcap error:", e)
+    except Exception as e:
+        print("misc. exception (runtime error in user callback?):", e)
+
 
 if __name__ == '__main__':
     main()