pkg/nanocbor: Initial import

pkg/nanocbor/Makefile

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+PKG_NAME    = nanocbor
+PKG_URL     = https://github.com/bergzand/nanocbor
+PKG_VERSION = 44d9b1cfaa6829c5d1063f3c0e4a1733cfa409e3
+PKG_LICENSE = LGPL-2.1
+
+.PHONY: all
+
+all: git-download
+	"$(MAKE)" -C $(PKG_BUILDDIR)/src \
+		-f $(RIOTPKG)/nanocbor/Makefile.$(PKG_NAME)
+
+include $(RIOTBASE)/pkg/pkg.mk

pkg/nanocbor/Makefile.include

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+INCLUDES += -I$(RIOTPKG)/nanocbor/include
+INCLUDES += -I$(PKGDIRBASE)/nanocbor/include

pkg/nanocbor/Makefile.nanocbor

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+MODULE = nanocbor
+
+SRC = decoder.c \
+      encoder.c
+
+include $(RIOTBASE)/Makefile.base

pkg/nanocbor/doc.txt

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+/**
+ * @defgroup pkg_nanocbor NanoCBOR library
+ * @ingroup  pkg
+ * @ingroup  sys
+ * @brief    CBOR encoder and decoder library for tiny devices
+ *
+ * This package contains the NanoCBOR library for a small CBOR encoder and
+ * decoder. Flash footprint for encoding and decoding should be below 1K each.
+ *
+ * At the moment 8 bit and 16 bit MCU support is broken by upstream, see the
+ * [issue](https://github.com/bergzand/NanoCBOR/issues/18).
+ *
+ * ## Usage
+ *
+ * Just add it as a package in your application:
+ *
+ * ```makefile
+ * USEPKG += nanocbor
+ * ```
+ *
+ * @see      https://github.com/bergzand/nanocbor
+ */

pkg/nanocbor/include/nanocbor/config.h

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+/*
+ * Copyright (C) 2019 Koen Zandberg
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @defgroup    nanocbor_config NanoCBOR configuration header
+ * @brief       Provides compile-time configuration for nanocbor
+ */
+
+#ifndef NANOCBOR_CONFIG_H
+#define NANOCBOR_CONFIG_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef NANOCBOR_RECURSION_MAX
+#define NANOCBOR_RECURSION_MAX  10
+#endif
+
+/**
+ * @brief library providing htonll, be64toh or equivalent. Must also provide
+ * the reverse operation (ntohll, htobe64 or equivalent)
+ */
+#ifndef NANOCBOR_BYTEORDER_HEADER
+#define NANOCBOR_BYTEORDER_HEADER "byteorder.h"
+#endif
+
+/**
+ * @brief call providing htonll or be64toh or equivalent functionality
+ *
+ * must take a uint64_t big endian and return it in host endianess
+ */
+#ifndef NANOCBOR_BE64TOH_FUNC
+#define NANOCBOR_BE64TOH_FUNC(be)   (ntohll(be))
+#endif
+
+/**
+ * @brief call providing htonll or htobe64 or equivalent functionality
+ *
+ * must take a uint64_t in host endianess and return the big endian value
+ */
+#ifndef NANOCBOR_HTOBE64_FUNC
+#define NANOCBOR_HTOBE64_FUNC(be)   (htonll(be))
+#endif
+
+/**
+ * @brief call providing htonll or htobe32 or equivalent functionality
+ *
+ * must take a uint32_t in host endianess and return the big endian value
+ */
+#ifndef NANOCBOR_HTOBE32_FUNC
+#define NANOCBOR_HTOBE32_FUNC(he)   htonl(he)
+#endif
+
+/**
+ * @brief configuration for size_t SIZE_MAX equivalent
+ */
+#ifndef NANOCBOR_SIZE_SIZET
+#if (SIZE_MAX == UINT16_MAX)
+#define NANOCBOR_SIZE_SIZET           NANOCBOR_SIZE_SHORT
+#elif (SIZE_MAX == UINT32_MAX)
+#define NANOCBOR_SIZE_SIZET           NANOCBOR_SIZE_WORD
+#elif (SIZE_MAX == UINT64_MAX)
+#define NANOCBOR_SIZE_SIZET           NANOCBOR_SIZE_LONG
+#else
+#error ERROR: unable to determine maximum size of size_t
+#endif
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NANOCBOR_CONFIG_H */