Move ScannedFile class and associated globals into ScannedFile.h and out of Net.h and scan.l

src/ScannedFile.cc

@@ -0,0 +1,56 @@
+#include "ScannedFile.h"
+
+#include <sys/errno.h>
+#include <limits.h> // for PATH_MAX
+
+#include "DebugLogger.h"
+#include "Reporter.h"
+
+namespace zeek::detail {
+
+std::list<ScannedFile> files_scanned;
+std::vector<std::string> sig_files;
+
+ScannedFile::ScannedFile(int arg_include_level,
+                         std::string arg_name,
+                         bool arg_skipped,
+                         bool arg_prefixes_checked)
+	: include_level(arg_include_level),
+	  skipped(arg_skipped),
+	  prefixes_checked(arg_prefixes_checked),
+	  name(std::move(arg_name))
+	{
+	if ( name == canonical_stdin_path )
+		canonical_path = canonical_stdin_path;
+	else
+		{
+		char buf[PATH_MAX];
+		auto res = realpath(name.data(), buf);
+
+		if ( ! res )
+			zeek::reporter->FatalError("failed to get realpath() of %s: %s",
+			                           name.data(), strerror(errno));
+
+		canonical_path = res;
+		}
+	}
+
+bool ScannedFile::AlreadyScanned() const
+	{
+	auto rval = false;
+
+	for ( const auto& it : files_scanned )
+		if ( it.canonical_path == canonical_path )
+			{
+			rval = true;
+			break;
+			}
+
+	DBG_LOG(zeek::DBG_SCRIPTS, "AlreadyScanned result (%d) %s", rval, canonical_path.data());
+	return rval;
+	}
+
+} // namespace zeek::detail
+
+std::list<zeek::detail::ScannedFile>& files_scanned = zeek::detail::files_scanned;
+std::vector<std::string>& sig_files = zeek::detail::sig_files;