update(engine): remove banned.h

Signed-off-by: Luca Guerra <luca@guerra.sh>

userspace/engine/banned.h

@@ -1,48 +0,0 @@
-// SPDX-License-Identifier: Apache-2.0
-/*
-Copyright (C) 2023 The Falco Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-#pragma once
-
-// BAN macro defines `function` as an invalid token that says using
-// the function is banned. This throws a compile time error when the
-// function is used.
-#define BAN(function) using_##function##_is_banned
-
-// BAN_ALTERNATIVE is same as BAN but the message also provides an alternative
-// function that the user could use instead of the banned function.
-#define BAN_ALTERNATIVE(function, alternative) using_##function##_is_banned__use_##alternative##_instead
-
-#undef strcpy
-#define strcpy(a, b) BAN(strcpy)
-
-#undef vsprintf
-#define vsprintf(a, b, c) BAN_ALTERNATIVE(vsprintf, vsnprintf)
-
-#undef sprintf
-#define sprintf(a, b, ...) BAN_ALTERNATIVE(sprintf, snprintf)
-
-#undef strcat
-#define strcat(a, b) BAN(strcat)
-
-#undef strncpy
-#define strncpy(a, b, c) BAN(strncpy)
-
-#undef swprintf
-#define swprintf(a, b, c, ...) BAN_ALTERNATIVE(swprintf, snprintf)
-
-#undef vswprintf
-#define vswprintf(a, b, c, d) BAN_ALTERNATIVE(vswprintf, vsnprintf)

userspace/engine/evttype_index_ruleset.cpp

@@ -16,7 +16,6 @@ limitations under the License.
 */
 
 #include "evttype_index_ruleset.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 #include <algorithm>
 

userspace/engine/falco_engine.cpp

@@ -44,7 +44,6 @@ limitations under the License.
 #include "formats.h"
 
 #include "utils.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 #include "evttype_index_ruleset.h"
 
 const std::string falco_engine::s_default_ruleset = "falco-default-ruleset";

userspace/engine/falco_utils.cpp

@@ -22,7 +22,6 @@ limitations under the License.
 
 #include "falco_utils.h"
 #include "utils.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 #include <re2/re2.h>
 

userspace/engine/formats.cpp

@@ -19,7 +19,6 @@ limitations under the License.
 
 #include "formats.h"
 #include "falco_engine.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 falco_formats::falco_formats(std::shared_ptr<const falco_engine> engine,
 			     bool json_include_output_property,

userspace/engine/json_evt.cpp

@@ -22,7 +22,6 @@ limitations under the License.
 
 #include "falco_common.h"
 #include "json_evt.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 using json = nlohmann::json;
 using namespace std;

userspace/falco/configuration.cpp

@@ -30,7 +30,6 @@ limitations under the License.
 
 #include "configuration.h"
 #include "logger.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 falco_configuration::falco_configuration():
 	m_json_output(false),

userspace/falco/event_drops.cpp

@@ -17,7 +17,6 @@ limitations under the License.
 
 #include "event_drops.h"
 #include "falco_common.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 syscall_evt_drop_mgr::syscall_evt_drop_mgr():
 	m_num_syscall_evt_drops(0),

userspace/falco/falco.cpp

@@ -22,7 +22,6 @@ limitations under the License.
 
 #include "app/app.h"
 #include "logger.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 static void display_fatal_err(const std::string &&msg)
 {

userspace/falco/falco_outputs.cpp

@@ -35,8 +35,6 @@ limitations under the License.
 #include "outputs_grpc.h"
 #endif
 
-#include "banned.h" // This raises a compilation error when certain functions are used
-
 static const char* s_internal_source = "internal";
 
 falco_outputs::falco_outputs(

userspace/falco/grpc_context.cpp

@@ -18,7 +18,6 @@ limitations under the License.
 #include <sstream>
 
 #include "grpc_context.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 falco::grpc::context::context(::grpc::ServerContext* ctx):
 	m_ctx(ctx)

userspace/falco/grpc_server.cpp

@@ -25,7 +25,6 @@ limitations under the License.
 #include "grpc_server.h"
 #include "grpc_request_context.h"
 #include "falco_utils.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 #define REGISTER_STREAM(req, res, svc, rpc, impl, num)                          \
 	std::vector<request_stream_context<svc, req, res>> rpc##_contexts(num); \

userspace/falco/grpc_server_impl.cpp

@@ -21,7 +21,6 @@ limitations under the License.
 #include "grpc_server_impl.h"
 #include "grpc_queue.h"
 #include "logger.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 bool falco::grpc::server_impl::is_running()
 {

userspace/falco/logger.cpp

@@ -19,7 +19,6 @@ limitations under the License.
 #include "logger.h"
 
 #include "falco_common.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 int falco_logger::level = LOG_INFO;
 bool falco_logger::time_format_iso_8601 = false;

userspace/falco/outputs_file.cpp

@@ -18,7 +18,6 @@ limitations under the License.
 #include "outputs_file.h"
 #include <iostream>
 #include <fstream>
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 void falco::outputs::output_file::open_file()
 {

userspace/falco/outputs_grpc.cpp

@@ -20,7 +20,6 @@ limitations under the License.
 #include "grpc_queue.h"
 #include "falco_common.h"
 #include "formats.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 #if __has_attribute(deprecated)
 #define DISABLE_WARNING_PUSH                        _Pragma("GCC diagnostic push")

userspace/falco/outputs_http.cpp

@@ -17,7 +17,6 @@ limitations under the License.
 
 #include "outputs_http.h"
 #include "logger.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 #define CHECK_RES(fn) res = res == CURLE_OK ? fn : res
 

userspace/falco/outputs_program.cpp

@@ -17,7 +17,6 @@ limitations under the License.
 
 #include "outputs_program.h"
 #include <stdio.h>
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 void falco::outputs::output_program::open_pfile()
 {

userspace/falco/outputs_stdout.cpp

@@ -17,7 +17,6 @@ limitations under the License.
 
 #include "outputs_stdout.h"
 #include <iostream>
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 void falco::outputs::output_stdout::output(const message *msg)
 {

userspace/falco/outputs_syslog.cpp

@@ -17,7 +17,6 @@ limitations under the License.
 
 #include "outputs_syslog.h"
 #include <syslog.h>
-#include "banned.h" // This raises a compilation error when certain functions are used
 
 void falco::outputs::output_syslog::output(const message *msg)
 {

userspace/falco/stats_writer.cpp

@@ -26,7 +26,6 @@ limitations under the License.
 #include "falco_common.h"
 #include "stats_writer.h"
 #include "logger.h"
-#include "banned.h" // This raises a compilation error when certain functions are used
 #include "config_falco.h"
 
 // note: ticker_t is an uint16_t, which is enough because we don't care about