netutils: Add BARE

BARE is a simple binary representation for structured application data.

cbare, the BARE implementation ported by this commit, is an I/O agnostic
C implementation of the BARE message encoding.

Signed-off-by: Jiri Vlasak <jvlasak@elektroline.cz>

netutils/bare/Kconfig

@@ -0,0 +1,22 @@
+config NETUTILS_BARE
+	bool "Binary Application Record Encoding (BARE)"
+	default n
+	depends on ALLOW_MIT_COMPONENTS
+	---help---
+		BARE is a simple binary representation for structured
+		application data.
+
+		See https://baremessages.org/
+
+		cbare is an MIT-licensed I/O agnostic C implementation of the
+		BARE message encoding that is used when this option is enabled.
+
+if NETUTILS_BARE
+
+config NETUTILS_BARE_TEST
+	bool "Enable baretest"
+	default n
+	---help---
+		Enable baretest -- BARE test application.
+
+endif

netutils/bare/Make.defs

@@ -0,0 +1,27 @@
+############################################################################
+# apps/netutils/bare/Make.defs
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you 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.
+#
+############################################################################
+
+ifneq ($(CONFIG_NETUTILS_BARE),)
+CONFIGURED_APPS += $(APPDIR)/netutils/bare
+CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/netutils/bare/cbare/src
+CXXFLAGS += ${INCDIR_PREFIX}$(APPDIR)/netutils/bare/cbare/src
+endif

netutils/bare/Makefile

@@ -0,0 +1,58 @@
+############################################################################
+# apps/netutils/bare/Makefile
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you 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.
+#
+############################################################################
+
+include $(APPDIR)/Make.defs
+
+BARE_CBARE_DIR = cbare
+
+DEPPATH += --dep-path $(BARE_CBARE_DIR)$(DELIM)src
+VPATH   += :$(BARE_CBARE_DIR)$(DELIM)src
+
+CFLAGS += -I$(BARE_CBARE_DIR)/src
+
+CSRCS  = $(BARE_CBARE_DIR)/src/alloc.c
+CSRCS += $(BARE_CBARE_DIR)/src/cbare.c
+CSRCS += $(BARE_CBARE_DIR)/src/die.c
+
+ifneq ($(CONFIG_NETUTILS_BARE_TEST),)
+
+PROGNAME  = baretest
+PRIORITY  = 100
+STACKSIZE = 2048
+MODULE    = y
+
+MAINSRC   = $(BARE_CBARE_DIR)/test/baretest.c
+
+endif
+
+$(BARE_CBARE_DIR):
+	$(Q) echo "Cloning cbare repo..."
+	$(Q) git clone --depth=1 https://git.sr.ht/~fsx/cbare
+	$(Q) patch -p1 --directory=cbare < cbare_porting_for_nuttx.patch
+	$(Q) touch $(BARE_CBARE_DIR)
+
+context:: $(BARE_CBARE_DIR)
+
+distclean::
+	$(call DELDIR, $(BARE_CBARE_DIR))
+
+include $(APPDIR)/Application.mk

netutils/bare/cbare_porting_for_nuttx.patch

@@ -0,0 +1,28 @@
+diff --git i/src/cbare.c w/src/cbare.c
+index 208639f..a3081fb 100644
+--- i/src/cbare.c
++++ w/src/cbare.c
+@@ -4,7 +4,9 @@
+ #include "cbare.h"
+ #include "utf8.h"
+ 
++#ifndef UNUSED
+ #define UNUSED(x) (void)(x)
++#endif
+ 
+ enum {
+ 	U8SZ = 1,
+diff --git i/test/baretest.c w/test/baretest.c
+index 1561f4c..9df740f 100644
+--- i/test/baretest.c
++++ w/test/baretest.c
+@@ -10,7 +10,9 @@
+ #include "alloc.h"
+ #include "die.h"
+ 
++#ifndef UNUSED
+ #define UNUSED(x) (void)(x)
++#endif
+ 
+ #define ARRLEN(a) sizeof(a)/sizeof(a[0])
+