Corrected dune linter warnings, linter warnings are now handled like errors. (#20)

Makefile

 .PHONY: all clean test uninstall
 all:
-	dune build --profile release
+	dune build
 	dune install
 	cd plugins/cwe_checker; make all; cd ../..
 	cd plugins/cwe_checker_emulation; make all; cd ../..
@@ -8,7 +8,7 @@ all:
 	cd plugins/cwe_checker_type_inference_print; make all; cd ../..
 
 test:
-	dune runtest --profile release # TODO: correct all dune linter warnings so that we can remove --profile release
+	dune runtest
 	cd test/artificial_samples; scons; cd ../..
 	pytest -v
 

README.md

@@ -52,7 +52,7 @@ If you plan to develop cwe_checker, it is recommended to build it using the prov
 -  Opam 2.0.2
 -  dune >= 1.6
 -  BAP 1.6 (and its dependencies)
--  yojson >= 1.4.1
+-  yojson >= 1.6.0
 -  alcotest >= 0.8.3
 -  Sark (latest) for IDA Pro annotations
 -  pytest >= 3.5.1

cwe_checker.opam

@@ -14,7 +14,7 @@ dev-repo: "git+https://github.com/fkie-cad/cwe_checker"
 depends: [
   "ocaml" {>= "4.05"}
   "dune" {>= "1.6"}
-  "yojson" {>= "1.4.1"}
+  "yojson" {>= "1.6.0"}
   "bap" {>= "1.6"}
   "alcotest" {>= "0.8.3"}
   "core_kernel" {>= "v0.11" & < "v0.12"}

plugins/cwe_checker/cwe_checker.ml

@@ -57,13 +57,13 @@ let partial_run project config modules =
   let tid_address_map = Address_translation.generate_tid_map program in
   let json = Yojson.Basic.from_file config in
   Log_utils.info "[cwe_checker] Just running the following analyses: %s." modules;
-  List.iter (String.split modules ~on: ',') ~f:(fun cwe -> try
-        begin
-          let cwe_mod = List.find_exn known_modules ~f:(fun x -> x.name = cwe) in
+  List.iter (String.split modules ~on: ',') ~f:(fun cwe ->
+    let cwe_mod = match List.find known_modules ~f:(fun x -> x.name = cwe) with
+      | Some(module_) -> module_
+      | None -> failwith "[CWE_CHECKER] Unknown CWE module" in
     let program = Project.program project in
     execute_cwe_module cwe_mod json program project tid_address_map
-        end
-      with Not_found -> failwith "[CWE_CHECKER] Unknown CWE module")
+  )
 
 let full_run project config =
   let program = Project.program project in

src/analysis/mem_region.ml

@@ -6,7 +6,7 @@ let (+), (-) = Bitvector.(+), Bitvector.(-)
 
 let (>) x y = Bitvector.(>) (Bitvector.signed x) (Bitvector.signed y)
 let (<) x y = Bitvector.(<) (Bitvector.signed x) (Bitvector.signed y)
-let (>=) x y = Bitvector.(>=) (Bitvector.signed x) (Bitvector.signed y)
+(* let (>=) x y = Bitvector.(>=) (Bitvector.signed x) (Bitvector.signed y) *)
 let (<=) x y = Bitvector.(<=) (Bitvector.signed x) (Bitvector.signed y)
 let (=) x y = Bitvector.(=) x y
 
@@ -74,16 +74,6 @@ let rec get mem_region pos =
     else
       Some(Error(())) (* pos intersects some data, but does not equal its starting address*)
 
-(* Helper function. Removes all elements with position <= pos. *)
-let rec remove_until mem_region pos =
-  match mem_region with
-  | [] -> []
-  | hd :: tl ->
-    if hd.pos <= pos then
-      remove_until tl pos
-    else
-      mem_region
-
 
 let rec remove mem_region ~pos ~size =
   let () = if pos + size < pos then failwith "[CWE-checker] element out of bounds for mem_region" in
@@ -91,11 +81,11 @@ let rec remove mem_region ~pos ~size =
   | [] -> []
   | hd :: tl ->
     if hd.pos + hd.size <= pos then
-      hd :: remove tl pos size
+      hd :: remove tl ~pos ~size
     else if pos + size <= hd.pos then
       mem_region
     else
-      let mem_region = remove tl pos size in
+      let mem_region = remove tl ~pos ~size in
       let mem_region =
         if hd.pos + hd.size > pos + size then
           error_elem ~pos:(pos + size) ~size:(hd.pos + hd.size - (pos + size)) :: mem_region
@@ -111,12 +101,12 @@ let rec remove mem_region ~pos ~size =
 let rec mark_error mem_region ~pos ~size =
   let () = if pos + size < pos then failwith "[CWE-checker] element out of bounds for mem_region" in
   match mem_region with
-  | [] -> (error_elem pos size) :: []
+  | [] -> (error_elem ~pos ~size) :: []
   | hd :: tl ->
     if hd.pos + hd.size <= pos then
-      hd :: (mark_error tl pos size)
+      hd :: (mark_error tl ~pos ~size)
     else if pos + size <= hd.pos then
-      (error_elem pos size) :: mem_region
+      (error_elem ~pos ~size) :: mem_region
     else
       let start_pos = min pos hd.pos in
       let end_pos_plus_one = max (pos + size) (hd.pos + hd.size) in
@@ -130,22 +120,22 @@ let rec merge mem_region1 mem_region2 ~data_merge =
   | ([], value) -> value
   | (hd1 :: tl1, hd2 :: tl2) ->
     if hd1.pos + hd1.size <= hd2.pos then
-      hd1 :: merge tl1 mem_region2 data_merge
+      hd1 :: merge tl1 mem_region2 ~data_merge
     else if hd2.pos + hd2.size <= hd1.pos then
-      hd2 :: merge mem_region1 tl2 data_merge
+      hd2 :: merge mem_region1 tl2 ~data_merge
     else if hd1.pos = hd2.pos && hd1.size = hd2.size then
       match (hd1.data, hd2.data) with
       | (Ok(data1), Ok(data2)) -> begin
           match data_merge data1 data2 with
           | Some(Ok(value)) -> { hd1 with data = Ok(value) } :: merge tl1 tl2 ~data_merge
           | Some(Error(_)) -> {hd1 with data = Error(())} :: merge tl1 tl2 ~data_merge
-          | None -> merge tl1 tl2 data_merge
+          | None -> merge tl1 tl2 ~data_merge
         end
       | _ -> { hd1 with data = Error(()) } :: merge tl1 tl2 ~data_merge
     else
       let start_pos = min hd1.pos hd2.pos in
       let end_pos_plus_one = max (hd1.pos + hd1.size) (hd2.pos + hd2.size) in
-      let mem_region = merge tl1 tl2 data_merge in
+      let mem_region = merge tl1 tl2 ~data_merge in
       mark_error mem_region ~pos:start_pos ~size:(end_pos_plus_one - start_pos)
 
 
@@ -156,8 +146,8 @@ let rec equal (mem_region1:'a t) (mem_region2:'a t) ~data_equal : bool =
     if hd1.pos = hd2.pos && hd1.size = hd2.size then
       match (hd1.data, hd2.data) with
       | (Ok(data1), Ok(data2)) when data_equal data1 data2 ->
-        equal tl1 tl2 data_equal
-      | (Error(()), Error(())) -> equal tl1 tl2 data_equal
+        equal tl1 tl2 ~data_equal
+      | (Error(()), Error(())) -> equal tl1 tl2 ~data_equal
       | _ -> false
     else
       false

src/checkers/cwe_190.ml

@@ -7,7 +7,7 @@ let version = "0.1"
 
 let collect_muliplications = Exp.fold ~init:0 (object
     inherit [Int.t] Exp.visitor
-    method! enter_binop op o1 o2 binops = match op with
+    method! enter_binop op _o1 _o2 binops = match op with
       | Bil.TIMES | Bil.LSHIFT -> binops + 1
       | _ -> binops
 end)
@@ -17,7 +17,7 @@ let contains_multiplication d =
   let binops = collect_muliplications rhs in
   binops > 0
 
-let check_multiplication_before_symbol proj prog sub blk jmp tid_map symbols =
+let check_multiplication_before_symbol _proj _prog _sub blk jmp tid_map symbols =
   Seq.iter (Term.enum def_t blk)
     ~f:(fun d -> if contains_multiplication d then
                    Log_utils.warn

src/checkers/cwe_215.ml

 open Core_kernel
 open Bap.Std
-open Unix
+
 
 (* TODO: IVG via gitter:
 I see, so you need the CU information, and yes BAP doesn't provide this.
@@ -19,16 +19,6 @@ but in general case it is better to use the approach described above. *)
 let name = "CWE215"
 let version = "0.1"
 
-let read_lines in_chan =
-  let lines = ref [] in
-  try
-    while true; do
-      lines := input_line in_chan :: !lines
-    done; !lines
-  with End_of_file ->
-    In_channel.close in_chan;
-    List.rev !lines
-
 (* TODO: check if program contains strings like "DEBUG"*)
 let check_cwe _ project _ _ _ =
   match Project.get project filename with
@@ -36,7 +26,7 @@ let check_cwe _ project _ _ _ =
       let cmd = Format.sprintf "readelf --debug-dump=decodedline %s | grep CU" fname in
       try
         let in_chan = Unix.open_process_in cmd in
-        read_lines in_chan |> List.iter ~f:(fun l -> Log_utils.warn "[%s] {%s} (Information Exposure Through Debug Information) %s" name version l)
+        In_channel.input_lines in_chan |> List.iter ~f:(fun l -> Log_utils.warn "[%s] {%s} (Information Exposure Through Debug Information) %s" name version l)
       with
         Unix.Unix_error (e,fm,argm) ->
         Log_utils.error "[%s] {%s} %s %s %s" name version (Unix.error_message e) fm argm

src/checkers/cwe_243.ml

@@ -50,7 +50,7 @@ let check_route sub symbols =
   if res then res else res
 
 (** Checks one possible valid path (combination of APIs) of chroot. *)
-let check_path prog tid_map sub path =
+let check_path prog _tid_map sub path =
   let symbols = build_symbols path prog in
   if List.length symbols = List.length path then
   begin
@@ -81,7 +81,7 @@ let check_subfunction prog tid_map sub pathes =
          (Term.name sub)
     end
 
-let check_cwe prog proj tid_map pathes _ =
+let check_cwe prog _proj tid_map pathes _ =
   let chroot_symbol = find_symbol prog "chroot" in
   match chroot_symbol with
   | Some _ ->

src/checkers/cwe_248.ml

@@ -27,7 +27,7 @@ let contains_symbol block symbol_name =
   (* Checks whether a subfunction contains a catch block. *)
   let contains_catch subfunction =
     let blocks = Term.enum blk_t subfunction in
-    Seq.exists blocks (fun block -> contains_symbol block "@__cxa_begin_catch")
+    Seq.exists blocks ~f:(fun block -> contains_symbol block "@__cxa_begin_catch")
 
 (* Find all calls to subfunctions that are reachable from this subfunction. The calls are returned
     as a list, except for calls to "@__cxa_throw", which are logged as possibly uncaught exceptions. *)
@@ -59,7 +59,7 @@ let rec find_uncaught_exceptions subfunction already_checked_functions program ~
 (* Search for uncatched exceptions for each entry point into the binary.
     TODO: Exceptions, that are catched when starting from one entry point, but not from another, are masked this
     way. We should check whether this produces a lot of false negatives. *)
-let check_cwe program project tid_map symbol_pairs _ =
+let check_cwe program _project tid_map _symbol_pairs _ =
   let entry_points = Symbol_utils.get_program_entry_points program in
   let _ = Seq.fold entry_points ~init:[] ~f:(fun already_checked_functions sub -> find_uncaught_exceptions ~tid_map:tid_map sub already_checked_functions program) in
   ()

src/checkers/cwe_332.ml

 open Core_kernel
-open Bap.Std
 
-open Graph_utils
 open Symbol_utils
 
 let name = "CWE332"
 let version = "0.1"
 
-let check_cwe program proj tid_map symbol_pairs _ =
+let check_cwe program _proj _tid_map _symbol_pairs _ =
   match Option.both (find_symbol program "srand") (find_symbol program "rand") with
   | None -> begin
       match (find_symbol program "rand") with
       | None -> ()
       | Some _ -> Log_utils.warn "[%s] {%s} (Insufficient Entropy in PRNG) program uses rand without calling srand before" name version
     end
-  | Some (srand_tid, rand_tid) -> ()
+  | Some (_srand_tid, _rand_tid) -> ()

src/checkers/cwe_367.ml

@@ -34,7 +34,7 @@ let is_reachable sub source sink =
   let sink_blk = get_blk_tid_of_tid sub sink_tid in
   Graphlib.Std.Graphlib.is_reachable (module Graphs.Tid) cfg source_blk sink_blk
 
-let handle_sub sub program tid_map symbols source sink =
+let handle_sub sub program tid_map _symbols source sink =
   if (Symbol_utils.sub_calls_symbol program sub source) && (Symbol_utils.sub_calls_symbol program sub sink) then
     begin
       let calls = Symbol_utils.get_direct_callsites_of_sub sub in
@@ -57,6 +57,6 @@ let handle_sub sub program tid_map symbols source sink =
   else
     ()
 
-let check_cwe program proj tid_map symbol_pairs _ =
+let check_cwe program _proj tid_map _symbol_pairs _ =
   let symbols = Symbol_utils.build_symbols ["access"; "open";] in
   Seq.iter (Term.enum sub_t program) ~f:(fun s -> handle_sub s program tid_map symbols "access" "open")

src/checkers/cwe_426.ml

@@ -21,7 +21,7 @@ let handle_sub sub program tid_map symbols =
     end
   else ()
 
-let check_cwe program proj tid_map symbols _ =
+let check_cwe program _proj tid_map symbols _ =
   match symbols with
   | hd::[] ->
      Seq.iter (Term.enum sub_t program) ~f:(fun s -> handle_sub s program tid_map hd)

src/checkers/cwe_457.ml

@@ -10,7 +10,7 @@ let get_defs sub_ssa =
 
 let collect_stores_of_exp = Exp.fold ~init:0 (object
           inherit [int] Exp.visitor
-          method! enter_store ~mem:_ ~addr:addr ~exp:exp _ _ stores =
+          method! enter_store ~mem:_ ~addr:_ ~exp:_ _ _ stores =
             stores + 1
         end)
 
@@ -62,7 +62,7 @@ let is_interesting_load_store def fp_pointer =
 (*TODO: implement real filtering*)
 let filter_mem_address i min_fp_offset = Set.filter i ~f:(fun elem -> (Word.of_int  ~width:32 min_fp_offset) < elem)
 
-let check_subfunction prog proj tid_map sub =
+let check_subfunction _prog proj tid_map sub =
   let fp_pointer = get_fp_of_arch (Project.arch proj) in
   let min_fp_offset = get_min_fp_offset (Project.arch proj) in
   let stores = ref [||] in
@@ -92,5 +92,5 @@ let check_subfunction prog proj tid_map sub =
             end
         end)
 
-let check_cwe prog proj tid_map symbol_names _ =
+let check_cwe prog proj tid_map _symbol_names _ =
   Seq.iter (Term.enum sub_t prog) ~f:(fun sub -> check_subfunction prog proj tid_map sub)

src/checkers/cwe_467.ml

@@ -8,7 +8,7 @@ let version = "0.1"
 let get_pointer_size arch =
   Size.in_bytes @@ Arch.addr_size arch
 
-let check_input_is_pointer_size proj prog sub blk jmp tid_map symbols =
+let check_input_is_pointer_size proj _prog _sub blk jmp tid_map symbols =
   Seq.iter (Term.enum def_t blk) ~f:(fun d ->  match Exp.eval @@ Def.rhs d with
       | Imm w ->
         begin

src/checkers/cwe_476.ml

@@ -53,7 +53,7 @@ module State = struct
   (** two states are equal if they contain the same set of tainted registers*)
   let equal state1 state2 =
     (List.length state1) = (List.length state2) &&
-    not (List.exists state1 ~f:(fun (var, tid) -> Option.is_none (find state2 var) ))
+    not (List.exists state1 ~f:(fun (var, _tid) -> Option.is_none (find state2 var) ))
 
   (** The union of two states is the union of the tainted registers*)
   let union state1 state2 =
@@ -66,14 +66,14 @@ module State = struct
 
   (** remove virtual registers from the state (useful at the end of a block) *)
   let remove_virtual_registers state =
-    List.filter state ~f:(fun (var, tid) -> Var.is_physical var)
+    List.filter state ~f:(fun (var, _tid) -> Var.is_physical var)
 
 end
 
 (* check whether an expression contains an unchecked value. *)
 let rec contains_unchecked exp state : access_type =
   match exp with
-  | Bil.Load(mem, addr, _, _)->
+  | Bil.Load(_mem, addr, _, _)->
     begin
       let acc = contains_unchecked addr state in
       match acc with
@@ -81,7 +81,7 @@ let rec contains_unchecked exp state : access_type =
       | Access(var) -> MemAccess(var)
       | NoAccess -> NoAccess
     end
-  | Bil.Store(mem, addr, val_expression, _,_) ->
+  | Bil.Store(_mem, addr, val_expression, _,_) ->
     begin
       let acc = union_access (contains_unchecked addr state) (contains_unchecked val_expression state) in
       match acc with
@@ -111,7 +111,7 @@ let rec contains_unchecked exp state : access_type =
    to the source of this return value from state. *)
 let checks_value exp state : State.t =
   match exp with
-  | Bil.Ite(if_, then_, else_) -> begin
+  | Bil.Ite(if_, _then_, _else_) -> begin
       match contains_unchecked if_ state with
       | Access(var) ->
         (* We filter out all registers with the same generating tid, since we have checked
@@ -138,7 +138,7 @@ let flag_any_access exp state ~cwe_hits =
 
 (** flag all unchecked registers as cwe_hits, return empty state *)
 let flag_all_unchecked_registers state ~cwe_hits =
-  let () = List.iter state ~f:(fun (var, tid) ->
+  let () = List.iter state ~f:(fun (_var, tid) ->
       append_to_hits cwe_hits tid) in
   []
 
@@ -190,30 +190,30 @@ let update_state_jmp jmp state ~cwe_hits ~function_names ~program ~block ~strict
     | NoAccess -> state
   end in
   match Jmp.kind jmp with
-  | Goto(Indirect(exp)) -> flag_any_access exp state cwe_hits
+  | Goto(Indirect(exp)) -> flag_any_access exp state ~cwe_hits
   | Goto(Direct(_)) -> state
   | Ret(_) -> if strict_call_policy then
-      flag_all_unchecked_registers state cwe_hits
+      flag_all_unchecked_registers state ~cwe_hits
     else
       state
-  | Int(_, _) -> flag_all_unchecked_registers state cwe_hits
+  | Int(_, _) -> flag_all_unchecked_registers state ~cwe_hits
   | Call(call) ->
     let state = match Call.return call with
-      | Some(Indirect(exp)) -> flag_any_access exp state cwe_hits
+      | Some(Indirect(exp)) -> flag_any_access exp state ~cwe_hits
       | _ -> state in
     let state = match Call.target call with
-      | Indirect(exp) -> flag_any_access exp state cwe_hits
+      | Indirect(exp) -> flag_any_access exp state ~cwe_hits
       | _ -> state in
     let state = match strict_call_policy with
       | true -> (* all unchecked registers get flagged as hits *)
-        flag_all_unchecked_registers state cwe_hits
+        flag_all_unchecked_registers state ~cwe_hits
       | false -> (* we assume that the callee will check all remaining unchecked values *)
         [] in
     match Call.target call with
     | Indirect(_) -> state (* already handled above *)
     | Direct(tid) ->
       if List.exists function_names ~f:(fun elem -> String.(=) elem (Tid.name tid)) then
-        taint_return_registers tid state program block
+        taint_return_registers tid state ~program ~block
       else
         state
 
@@ -227,7 +227,7 @@ let update_block_analysis block register_state ~cwe_hits ~function_names ~progra
   let register_state = Seq.fold elements ~init:register_state ~f:(fun state element ->
       match element with
       | `Def def -> update_state_def def state ~cwe_hits
-      | `Phi phi -> state (* We ignore phi terms for this analysis. *)
+      | `Phi _phi -> state (* We ignore phi terms for this analysis. *)
       | `Jmp jmp -> update_state_jmp jmp state ~cwe_hits ~function_names ~program ~block ~strict_call_policy
     ) in
   State.remove_virtual_registers register_state (* virtual registers should not be accessed outside of the block where they are defined. *)
@@ -255,7 +255,7 @@ let print_hit tid ~sub ~function_names ~tid_map =
       | _ -> false
     ) in ()
 
-let check_cwe prog proj tid_map symbol_names parameters =
+let check_cwe prog _proj tid_map symbol_names parameters =
   let symbols = match symbol_names with
     | hd :: _ -> hd
     | _ -> failwith "[CWE476] symbol_names not as expected" in

src/checkers/cwe_676.ml

@@ -4,7 +4,7 @@ open Bap.Std
 let name = "CWE676"
 let version = "0.1"
 
-let get_call_to_target cg callee target =
+let get_call_to_target _cg callee target =
    Term.enum blk_t callee |>
    Seq.concat_map ~f:(fun blk ->
        Term.enum jmp_t blk |> Seq.filter_map ~f:(fun j ->
@@ -35,7 +35,7 @@ let resolve_symbols prog symbols =
     Seq.filter ~f:(fun s -> List.exists ~f:(fun x -> x = Sub.name s) symbols)
 
 
-let check_cwe prog proj tid_map symbol_names _ =
+let check_cwe prog _proj tid_map symbol_names _ =
   match symbol_names with
   | hd::[] ->
      let subfunctions = Term.enum sub_t prog in

src/checkers/cwe_782.ml

-open Core_kernel
 open Bap.Std
 
 let name = "CWE782"
 let version = "0.1"
 
 (*TODO: check if binary is setuid*)
-let handle_sub sub program tid_map symbols =
+let handle_sub sub program tid_map _symbols =
       if Symbol_utils.sub_calls_symbol program sub "ioctl" then
         Log_utils.warn "[%s] {%s} (Exposed IOCTL with Insufficient Access Control) Program uses ioctl at %s (%s). Be sure to double check the program and the corresponding driver."
           name
@@ -15,5 +14,5 @@ let handle_sub sub program tid_map symbols =
       else
         ()
 
-let check_cwe program proj tid_map symbols _ =
+let check_cwe program _proj tid_map symbols _ =
   Seq.iter (Term.enum sub_t program) ~f:(fun s -> handle_sub s program tid_map symbols)

src/cwe_checker_core.opam

@@ -14,7 +14,7 @@ dev-repo: "git+https://github.com/fkie-cad/cwe_checker"
 depends: [
   "ocaml" {>= "4.05"}
   "dune" {>= "1.6"}
-  "yojson" {>= "1.4.1"}
+  "yojson" {>= "1.6.0"}
   "bap" {>= "1.6"}
   "core_kernel" {>= "v0.11" & < "v0.12"}
   "ppx_jane" {>= "v0.11" & < "v0.12"}

src/utils/address_translation.ml

@@ -9,7 +9,7 @@ let translate_tid_to_assembler_address_string tid tid_map =
 let generate_tid_map prog =
   (object
     inherit [addr Tid.Map.t] Term.visitor
-    method enter_term _ t addrs = match Term.get_attr t address with
+    method! enter_term _ t addrs = match Term.get_attr t address with
       | None -> addrs
       | Some addr -> Map.add_exn addrs ~key:(Term.tid t) ~data:addr
   end)#run prog Tid.Map.empty

src/utils/cconv.ml

@@ -13,8 +13,10 @@ let callee_saved_register_list project =
   match arch with
   | `x86_64 -> (* System V ABI *)
       "RBX" :: "RSP" :: "RBP" :: "R12" :: "R13" :: "R14" :: "R15" :: []
-  | `x86_64 -> (* Microsoft x64 calling convention *) (* TODO: How to distinguish from System V? For the time being, only use the System V ABI, since it saves less registers. *)
+  (* Microsoft x64 calling convention. Unused at the moment, since Windows binaries are not yet supported.
+  | `x86_64 -> (* Microsoft x64 calling convention *)
      "RBX" :: "RBP" :: "RDI" :: "RSI" :: "RSP" :: "R12" :: "R13" :: "R14" :: "R15" :: []
+  *)
   | `x86 -> (* Both Windows and Linux save the same registers *)
     "EBX" :: "ESI" :: "EDI" :: "EBP" :: []
   | `armv4 | `armv5 | `armv6 | `armv7

src/utils/graph_utils.ml

-open Core_kernel
-open Bap.Std
-open Graphlib.Std
-
-type path = {
-  start_node: Bap.Std.tid;
-  nodes: Bap.Std.tid array;
-  end_node: Bap.Std.tid;
-}
-
-let get_entry_blk_of_sub sub =
-  match Term.first blk_t sub with
-  | Some blk -> blk
-  | _ -> failwith "Could not determine first block of sub."
-
-let print_path p =
-  Format.printf "%s\n" (Array.fold p.nodes ~init:"" ~f:(fun acc n -> acc ^ " -> " ^ (Tid.to_string n)))
-
-let print_path_length p =
-  Format.printf "%d\n" (Array.length p.nodes)
-
-(* ToDo: remove *)
-let print_current_edge a b =
-  Format.printf "\t%s -> %s\n" (Tid.to_string a) (Tid.to_string b)
-
-let fork_path current_path current_node =
-  let new_path = Array.append (Array.copy current_path.nodes) [|current_node|] in
-  {start_node = current_path.start_node; nodes = new_path; end_node = current_path.end_node;}
-
-let node_already_visited_on_path node path =
-  node = path.start_node || Array.exists path.nodes ~f:(fun n -> n = node)
-
-let rec get_all_paths_from_node node g current_path =
-  match Seq.to_list (Graphs.Tid.Node.succs node g) with
-  | [] -> [current_path]
-  | succs -> List.concat_map succs
-               ~f:(fun succ ->
-                 if node_already_visited_on_path succ current_path then
-                   []
-                 else
-                   get_all_paths_from_node succ g (fork_path current_path node))
-
-(* Please mind the path explosion !!! *)
-let enumerate_paths_between_blks sub blk_start_tid blk_end_tid limit =
-  let g = Sub.to_graph sub in
-  let pathes = get_all_paths_from_node blk_start_tid g {start_node = blk_start_tid; nodes = [||]; end_node = blk_end_tid} in
-  Format.printf "\tFound %d pathes.\n" (List.length pathes); []

src/utils/graph_utils.mli

-(** This module implements functionality that works on graphs like the CFG.
-   Most of its functionality is implemented by using BAP's Graphlib.Std. *)
-

src/utils/json_utils.mli

 (* This module implements functionality related to parsing the JSON configuration file. *)
 
-val get_symbol_lists_from_json : Yojson.Basic.json -> string -> string list list
-val get_symbols_from_json : Yojson.Basic.json -> string -> string list
-val get_parameter_list_from_json : Yojson.Basic.json -> string -> string list
+val get_symbol_lists_from_json : Yojson.Basic.t -> string -> string list list
+val get_symbols_from_json : Yojson.Basic.t -> string -> string list
+val get_parameter_list_from_json : Yojson.Basic.t -> string -> string list

src/utils/log_utils.ml

@@ -166,7 +166,7 @@ module Make (S: SECTION) = struct
       !prefix
 
   (* example for a shorter timestamp string *)
-  let short_timestamp_str lvl =
+  let _short_timestamp_str lvl =
     sprintf "%.3f %s: " (Unix.gettimeofday()) (string_of_level lvl)
 
   let log lvl fmt =

src/utils/symbol_utils.ml

@@ -48,7 +48,7 @@ Term.enum blk_t sub |>
           match Jmp.kind j with
           | Goto _ | Ret _ | Int (_,_) -> None
           | Call destination -> begin match Call.target destination with
-            | Direct tid -> Some j
+            | Direct _tid -> Some j
             | _ -> None
             end))
 

test/unit/analysis/mem_region_test.ml

 open Bap.Std
-open Core_kernel
+(* open Core_kernel *)
 open Cwe_checker_core
 
 let check msg x = Alcotest.(check bool) msg true x

test/unit/analysis/mem_region_test.mli

-open Bap.Std
-open Core_kernel
 
 val tests: unit Alcotest.test_case list

test/unit/cwe_checker_unit_tests.ml

 open Bap.Std
 open Core_kernel
-open Cwe_checker_core
+
 
 let run_tests project =
   Type_inference_test.example_project := Some(project);

test/unit/utils/cconv_test.ml

@@ -24,7 +24,7 @@ let test_parse_dyn_syms () =
   let () = check "__libc_start_main_as_dyn_sym" (String.Set.mem (parse_dyn_syms project) "__libc_start_main") in
   let () = check "malloc_as_dyn_sym" (String.Set.mem (parse_dyn_syms project) "malloc") in
   let () = check "__cxa_finalize_as_dyn_sym" (String.Set.mem (parse_dyn_syms project) "__cxa_finalize") in
-  let () = check "dyn_sym_count" (String.Set.count (parse_dyn_syms project) ~f:(fun elem -> true) = 4) in
+  let () = check "dyn_sym_count" (String.Set.count (parse_dyn_syms project) ~f:(fun _elem -> true) = 4) in
   ()
 
 let tests = [