+val rmdom = rmdom' true Config.resultRoot
+val rmdom' = rmdom' false
+
+fun homedirOf uname =
+ Posix.SysDB.Passwd.home (Posix.SysDB.getpwnam uname)
+
+fun homedir () = homedirOf (getUser ())
+
+type subject = {node : string, domain : string}
+
+val describers : (subject -> string) list ref = ref []
+
+fun registerDescriber f = describers := f :: !describers
+
+fun describeOne arg = String.concat (map (fn f => f arg) (rev (!describers)))
+
+val line = "--------------------------------------------------------------\n"
+val dline = "==============================================================\n"
+
+fun describe dom =
+ String.concat (List.mapPartial
+ (fn node =>
+ case describeOne {node = node, domain = dom} of
+ "" => NONE
+ | s =>
+ SOME (String.concat [dline, "Node ", node, "\n", dline, "\n", s]))
+ nodes)
+
+datatype description =
+ Filename of { filename : string, heading : string, showEmpty : bool }
+ | Extension of { extension : string, heading : string -> string }
+
+fun considerAll ds {node, domain} =
+ let
+ val ds = map (fn d => (d, ref [])) ds
+
+ val path = Config.resultRoot
+ val jdf = OS.Path.joinDirFile
+ val path = jdf {dir = path, file = node}
+ val path = foldr (fn (more, path) => jdf {dir = path, file = more})
+ path (String.tokens (fn ch => ch = #".") domain)
+ in
+ if Posix.FileSys.access (path, []) then
+ let
+ val dir = Posix.FileSys.opendir path
+
+ fun loop () =
+ case Posix.FileSys.readdir dir of
+ NONE => ()
+ | SOME fname =>
+ (app (fn (d, entries) =>
+ let
+ fun readFile showEmpty entries' =
+ let
+ val fname = OS.Path.joinDirFile {dir = path,
+ file = fname}
+
+ val inf = TextIO.openIn fname
+
+ fun loop (seenOne, entries') =
+ case TextIO.inputLine inf of
+ NONE => if seenOne orelse showEmpty then
+ "\n" :: entries'
+ else
+ !entries
+ | SOME line => loop (true, line :: entries')
+ in
+ loop (false, entries')
+ before TextIO.closeIn inf
+ end
+ in
+ case d of
+ Filename {filename, heading, showEmpty} =>
+ if fname = filename then
+ entries := readFile showEmpty ("\n" :: line :: ":\n" :: heading :: line :: !entries)
+ else
+ ()
+ | Extension {extension, heading} =>
+ let
+ val {base, ext} = OS.Path.splitBaseExt fname
+ in
+ case ext of
+ NONE => ()
+ | SOME extension' =>
+ if extension' = extension then
+ entries := readFile true ("\n" :: line :: ":\n" :: heading base :: line :: !entries)
+ else
+ ()
+ end
+ end) ds;
+ loop ())
+ in
+ loop ();
+ Posix.FileSys.closedir dir;
+ String.concat (List.concat (map (fn (_, entries) => rev (!entries)) ds))
+ end
+ else
+ ""
+ end
+
+val () = registerDescriber (considerAll [Filename {filename = "soa",
+ heading = "DNS SOA",
+ showEmpty = false}])
+