sync to upstream libcbor v0.7.0; some minor fixes, but a note major

crank due to ABI change.

42 files changed, 124 insertions, 97 deletions

diff --git a/lib/libcbor/src/allocators.c b/lib/libcbor/src/allocators.c
index 230306823f7..273e09321a6 100644
--- a/lib/libcbor/src/allocators.c
+++ b/lib/libcbor/src/allocators.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor.c b/lib/libcbor/src/cbor.c
index b0b9dfd6cf5..24e5aa3d7f3 100644
--- a/lib/libcbor/src/cbor.c
+++ b/lib/libcbor/src/cbor.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
@@ -323,8 +323,7 @@ static void _cbor_nested_describe(cbor_item_t *item, FILE *out, int indent) {
       fprintf(out, "%*s[CBOR_TYPE_FLOAT_CTRL] ", indent, " ");
       if (cbor_float_ctrl_is_ctrl(item)) {
         if (cbor_is_bool(item))
-          fprintf(out, "Bool: %s\n",
-                  cbor_ctrl_is_bool(item) ? "true" : "false");
+          fprintf(out, "Bool: %s\n", cbor_get_bool(item) ? "true" : "false");
         else if (cbor_is_undef(item))
           fprintf(out, "Undefined\n");
         else if (cbor_is_null(item))
diff --git a/lib/libcbor/src/cbor.h b/lib/libcbor/src/cbor.h
index 5bf78e2e416..f4dfc9e3d75 100644
--- a/lib/libcbor/src/cbor.h
+++ b/lib/libcbor/src/cbor.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/arrays.c b/lib/libcbor/src/cbor/arrays.c
index 8a86cf102b7..c1d01afafee 100644
--- a/lib/libcbor/src/cbor/arrays.c
+++ b/lib/libcbor/src/cbor/arrays.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/arrays.h b/lib/libcbor/src/cbor/arrays.h
index 1e68689f462..38519750442 100644
--- a/lib/libcbor/src/cbor/arrays.h
+++ b/lib/libcbor/src/cbor/arrays.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/bytestrings.c b/lib/libcbor/src/cbor/bytestrings.c
index 3b96eeb34fa..75a737bd92a 100644
--- a/lib/libcbor/src/cbor/bytestrings.c
+++ b/lib/libcbor/src/cbor/bytestrings.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/bytestrings.h b/lib/libcbor/src/cbor/bytestrings.h
index a133f949edb..9f9322ca260 100644
--- a/lib/libcbor/src/cbor/bytestrings.h
+++ b/lib/libcbor/src/cbor/bytestrings.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/callbacks.c b/lib/libcbor/src/cbor/callbacks.c
index 6f868f1b793..7d0f1c62a75 100644
--- a/lib/libcbor/src/cbor/callbacks.c
+++ b/lib/libcbor/src/cbor/callbacks.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/callbacks.h b/lib/libcbor/src/cbor/callbacks.h
index f789e5cef08..1d37f3ee865 100644
--- a/lib/libcbor/src/cbor/callbacks.h
+++ b/lib/libcbor/src/cbor/callbacks.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/common.c b/lib/libcbor/src/cbor/common.c
index 9c1239d53ab..7ccce38ac25 100644
--- a/lib/libcbor/src/cbor/common.c
+++ b/lib/libcbor/src/cbor/common.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/common.h b/lib/libcbor/src/cbor/common.h
index fbe3e5719c3..d54a23cc81e 100644
--- a/lib/libcbor/src/cbor/common.h
+++ b/lib/libcbor/src/cbor/common.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/configuration.h b/lib/libcbor/src/cbor/configuration.h
index 3a8adf6a902..8e4e3be4bff 100644
--- a/lib/libcbor/src/cbor/configuration.h
+++ b/lib/libcbor/src/cbor/configuration.h
@@ -2,11 +2,12 @@
 #define LIBCBOR_CONFIGURATION_H
 
 #define CBOR_MAJOR_VERSION 0
-#define CBOR_MINOR_VERSION 5
+#define CBOR_MINOR_VERSION 7
 #define CBOR_PATCH_VERSION 0
 
 #define CBOR_CUSTOM_ALLOC 0
 #define CBOR_BUFFER_GROWTH 2
+#define CBOR_MAX_STACK_SIZE 2048
 #define CBOR_PRETTY_PRINTER 1
 
 #define CBOR_RESTRICT_SPECIFIER restrict
diff --git a/lib/libcbor/src/cbor/configuration.h.in b/lib/libcbor/src/cbor/configuration.h.in
index b81a0e64185..6f65980aa8a 100644
--- a/lib/libcbor/src/cbor/configuration.h.in
+++ b/lib/libcbor/src/cbor/configuration.h.in
@@ -7,6 +7,7 @@
 
 #cmakedefine01 CBOR_CUSTOM_ALLOC
 #define CBOR_BUFFER_GROWTH ${CBOR_BUFFER_GROWTH}
+#define CBOR_MAX_STACK_SIZE ${CBOR_MAX_STACK_SIZE}
 #cmakedefine01 CBOR_PRETTY_PRINTER
 
 #define CBOR_RESTRICT_SPECIFIER ${CBOR_RESTRICT_SPECIFIER}
diff --git a/lib/libcbor/src/cbor/data.h b/lib/libcbor/src/cbor/data.h
index df0eb953083..7f703bc0635 100644
--- a/lib/libcbor/src/cbor/data.h
+++ b/lib/libcbor/src/cbor/data.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/encoding.c b/lib/libcbor/src/cbor/encoding.c
index 341d9290f34..19281520edd 100644
--- a/lib/libcbor/src/cbor/encoding.c
+++ b/lib/libcbor/src/cbor/encoding.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
@@ -129,20 +129,20 @@ size_t cbor_encode_half(float value, unsigned char *buffer,
   /* Assuming value is normalized */
   uint32_t val = ((union _cbor_float_helper){.as_float = value}).as_uint;
   uint16_t res;
-  uint8_t exp = (uint8_t)((val & 0x7F800000) >>
-                          23); /* 0b0111_1111_1000_0000_0000_0000_0000_0000 */
+  uint8_t exp = (uint8_t)((val & 0x7F800000u) >>
+                          23u); /* 0b0111_1111_1000_0000_0000_0000_0000_0000 */
   uint32_t mant =
-      val & 0x7FFFFF; /* 0b0000_0000_0111_1111_1111_1111_1111_1111 */
-  if (exp == 0xFF) {  /* Infinity or NaNs */
+      val & 0x7FFFFFu; /* 0b0000_0000_0111_1111_1111_1111_1111_1111 */
+  if (exp == 0xFF) {   /* Infinity or NaNs */
     if (value != value) {
-      res = (uint16_t)0x00e700; /* Not IEEE semantics - required by CBOR
+      res = (uint16_t)0x007e00; /* Not IEEE semantics - required by CBOR
                                    [s. 3.9] */
     } else {
-      res =
-          (uint16_t)((val & 0x80000000) >> 16 | 0x7C00 | (mant ? 1 : 0) << 15);
+      res = (uint16_t)((val & 0x80000000u) >> 16u | 0x7C00u |
+                       (mant ? 1u : 0u) << 15u);
     }
   } else if (exp == 0x00) { /* Zeroes or subnorms */
-    res = (uint16_t)((val & 0x80000000) >> 16 | mant >> 13);
+    res = (uint16_t)((val & 0x80000000u) >> 16u | mant >> 13u);
   } else { /* Normal numbers */
     int8_t logical_exp = (int8_t)(exp - 127);
     assert(logical_exp == exp - 127);
@@ -157,12 +157,12 @@ size_t cbor_encode_half(float value, unsigned char *buffer,
       /* Offset the remaining decimal places by shifting the significand, the
          value is lost. This is an implementation decision that works around the
          absence of standard half-float in the language. */
-      res = (uint16_t)(val & 0x80000000) >> 16 |
-            (uint16_t)(1 << (24 + logical_exp));
+      res = (uint16_t)((val & 0x80000000u) >> 16u) |  // Extract sign bit
+            (uint16_t)(1u << (24u + logical_exp));
     } else {
-      res = (uint16_t)((val & 0x80000000) >> 16 |
-                       ((((uint8_t)logical_exp) + 15) << 10) |
-                       (uint16_t)(mant >> 13));
+      res = (uint16_t)((val & 0x80000000u) >> 16u |
+                       ((((uint8_t)logical_exp) + 15u) << 10u) |
+                       (uint16_t)(mant >> 13u));
     }
   }
   return _cbor_encode_uint16(res, buffer, buffer_size, 0xE0);
diff --git a/lib/libcbor/src/cbor/encoding.h b/lib/libcbor/src/cbor/encoding.h
index 8261467215e..34a7382758a 100644
--- a/lib/libcbor/src/cbor/encoding.h
+++ b/lib/libcbor/src/cbor/encoding.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/floats_ctrls.c b/lib/libcbor/src/cbor/floats_ctrls.c
index 1da8ed66771..b7e5fcef853 100644
--- a/lib/libcbor/src/cbor/floats_ctrls.c
+++ b/lib/libcbor/src/cbor/floats_ctrls.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
@@ -58,6 +58,11 @@ double cbor_float_get_float(const cbor_item_t *item) {
   return NAN; /* Compiler complaints */
 }
 
+bool cbor_get_bool(const cbor_item_t *item) {
+  assert(cbor_is_bool(item));
+  return item->metadata.float_ctrl_metadata.ctrl == CBOR_CTRL_TRUE;
+}
+
 void cbor_set_float2(cbor_item_t *item, float value) {
   assert(cbor_is_float(item));
   assert(cbor_float_get_width(item) == CBOR_FLOAT_16);
@@ -82,9 +87,10 @@ void cbor_set_ctrl(cbor_item_t *item, uint8_t value) {
   item->metadata.float_ctrl_metadata.ctrl = value;
 }
 
-bool cbor_ctrl_is_bool(const cbor_item_t *item) {
+void cbor_set_bool(cbor_item_t *item, bool value) {
   assert(cbor_is_bool(item));
-  return item->metadata.float_ctrl_metadata.ctrl == CBOR_CTRL_TRUE;
+  item->metadata.float_ctrl_metadata.ctrl =
+      value ? CBOR_CTRL_TRUE : CBOR_CTRL_FALSE;
 }
 
 cbor_item_t *cbor_new_ctrl() {
diff --git a/lib/libcbor/src/cbor/floats_ctrls.h b/lib/libcbor/src/cbor/floats_ctrls.h
index 83cb75acd6e..7e60620395e 100644
--- a/lib/libcbor/src/cbor/floats_ctrls.h
+++ b/lib/libcbor/src/cbor/floats_ctrls.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
@@ -70,6 +70,13 @@ double cbor_float_get_float8(const cbor_item_t *item);
  */
 double cbor_float_get_float(const cbor_item_t *item);
 
+/** Get value from a boolean ctrl item
+ *
+ * @param item[borrow] A ctrl item
+ * @return boolean value
+ */
+bool cbor_get_bool(const cbor_item_t *item);
+
 /** Constructs a new ctrl item
  *
  * The width cannot be changed once the item is created
@@ -134,6 +141,13 @@ cbor_item_t *cbor_build_bool(bool value);
  */
 void cbor_set_ctrl(cbor_item_t *item, uint8_t value);
 
+/** Assign a boolean value to a boolean ctrl item
+ *
+ * @param item[borrow] A ctrl item
+ * @param value The simple value to assign.
+ */
+void cbor_set_bool(cbor_item_t *item, bool value);
+
 /** Assigns a float value
  *
  * @param item[borrow] A half precision float
@@ -162,13 +176,6 @@ void cbor_set_float8(cbor_item_t *item, double value);
  */
 uint8_t cbor_ctrl_value(const cbor_item_t *item);
 
-/** Is this ctrl item a boolean?
- *
- * @param item[borrow] A ctrl item
- * @return Is this ctrl item a boolean?
- */
-bool cbor_ctrl_is_bool(const cbor_item_t *item);
-
 /** Constructs a new float
  *
  * @param value the value to use
diff --git a/lib/libcbor/src/cbor/internal/builder_callbacks.c b/lib/libcbor/src/cbor/internal/builder_callbacks.c
index bd445bd1ee8..f6c57113616 100644
--- a/lib/libcbor/src/cbor/internal/builder_callbacks.c
+++ b/lib/libcbor/src/cbor/internal/builder_callbacks.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
@@ -87,8 +87,7 @@ void _cbor_builder_append(cbor_item_t *item,
   }
 }
 
-// TODO: refactor this to take the parameter name, this is way too magical
-#define CHECK_RES                  \
+#define CHECK_RES(ctx, res)        \
   do {                             \
     if (res == NULL) {             \
       ctx->creation_failed = true; \
@@ -96,10 +95,18 @@ void _cbor_builder_append(cbor_item_t *item,
     }                              \
   } while (0)
 
+#define PUSH_CTX_STACK(ctx, res, subitems)                     \
+  do {                                                         \
+    if (_cbor_stack_push(ctx->stack, res, subitems) == NULL) { \
+      cbor_decref(&res);                                       \
+      ctx->creation_failed = true;                             \
+    }                                                          \
+  } while (0)
+
 void cbor_builder_uint8_callback(void *context, uint8_t value) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_int8();
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   cbor_mark_uint(res);
   cbor_set_uint8(res, value);
   _cbor_builder_append(res, ctx);
@@ -108,7 +115,7 @@ void cbor_builder_uint8_callback(void *context, uint8_t value) {
 void cbor_builder_uint16_callback(void *context, uint16_t value) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_int16();
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   cbor_mark_uint(res);
   cbor_set_uint16(res, value);
   _cbor_builder_append(res, ctx);
@@ -117,7 +124,7 @@ void cbor_builder_uint16_callback(void *context, uint16_t value) {
 void cbor_builder_uint32_callback(void *context, uint32_t value) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_int32();
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   cbor_mark_uint(res);
   cbor_set_uint32(res, value);
   _cbor_builder_append(res, ctx);
@@ -126,7 +133,7 @@ void cbor_builder_uint32_callback(void *context, uint32_t value) {
 void cbor_builder_uint64_callback(void *context, uint64_t value) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_int64();
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   cbor_mark_uint(res);
   cbor_set_uint64(res, value);
   _cbor_builder_append(res, ctx);
@@ -135,7 +142,7 @@ void cbor_builder_uint64_callback(void *context, uint64_t value) {
 void cbor_builder_negint8_callback(void *context, uint8_t value) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_int8();
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   cbor_mark_negint(res);
   cbor_set_uint8(res, value);
   _cbor_builder_append(res, ctx);
@@ -152,7 +159,7 @@ void cbor_builder_negint16_callback(void *context, uint16_t value) {
 void cbor_builder_negint32_callback(void *context, uint32_t value) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_int32();
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   cbor_mark_negint(res);
   cbor_set_uint32(res, value);
   _cbor_builder_append(res, ctx);
@@ -161,7 +168,7 @@ void cbor_builder_negint32_callback(void *context, uint32_t value) {
 void cbor_builder_negint64_callback(void *context, uint64_t value) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_int64();
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   cbor_mark_negint(res);
   cbor_set_uint64(res, value);
   _cbor_builder_append(res, ctx);
@@ -202,8 +209,8 @@ void cbor_builder_byte_string_callback(void *context, cbor_data data,
 void cbor_builder_byte_string_start_callback(void *context) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_indefinite_bytestring();
-  CHECK_RES;
-  _cbor_stack_push(ctx->stack, res, 0);
+  CHECK_RES(ctx, res);
+  PUSH_CTX_STACK(ctx, res, 0);
 }
 
 void cbor_builder_string_callback(void *context, cbor_data data,
@@ -228,6 +235,11 @@ void cbor_builder_string_callback(void *context, cbor_data data,
 
   memcpy(new_handle, data, length);
   cbor_item_t *res = cbor_new_definite_string();
+  if (res == NULL) {
+    _CBOR_FREE(new_handle);
+    ctx->creation_failed = true;
+    return;
+  }
   cbor_string_set_handle(res, new_handle, length);
   res->metadata.string_metadata.codepoint_count = codepoint_count;
 
@@ -247,16 +259,16 @@ void cbor_builder_string_callback(void *context, cbor_data data,
 void cbor_builder_string_start_callback(void *context) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_indefinite_string();
-  CHECK_RES;
-  _cbor_stack_push(ctx->stack, res, 0);
+  CHECK_RES(ctx, res);
+  PUSH_CTX_STACK(ctx, res, 0);
 }
 
 void cbor_builder_array_start_callback(void *context, size_t size) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_definite_array(size);
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   if (size > 0) {
-    _cbor_stack_push(ctx->stack, res, size);
+    PUSH_CTX_STACK(ctx, res, size);
   } else {
     _cbor_builder_append(res, ctx);
   }
@@ -265,23 +277,23 @@ void cbor_builder_array_start_callback(void *context, size_t size) {
 void cbor_builder_indef_array_start_callback(void *context) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_indefinite_array();
-  CHECK_RES;
-  _cbor_stack_push(ctx->stack, res, 0);
+  CHECK_RES(ctx, res);
+  PUSH_CTX_STACK(ctx, res, 0);
 }
 
 void cbor_builder_indef_map_start_callback(void *context) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_indefinite_map();
-  CHECK_RES;
-  _cbor_stack_push(ctx->stack, res, 0);
+  CHECK_RES(ctx, res);
+  PUSH_CTX_STACK(ctx, res, 0);
 }
 
 void cbor_builder_map_start_callback(void *context, size_t size) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_definite_map(size);
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   if (size > 0) {
-    _cbor_stack_push(ctx->stack, res, size * 2);
+    PUSH_CTX_STACK(ctx, res, size * 2);
   } else {
     _cbor_builder_append(res, ctx);
   }
@@ -335,7 +347,7 @@ void cbor_builder_float2_callback(void *context, float value) {
 void cbor_builder_float4_callback(void *context, float value) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_float4();
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   cbor_set_float4(res, value);
   _cbor_builder_append(res, ctx);
 }
@@ -343,7 +355,7 @@ void cbor_builder_float4_callback(void *context, float value) {
 void cbor_builder_float8_callback(void *context, double value) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_float8();
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   cbor_set_float8(res, value);
   _cbor_builder_append(res, ctx);
 }
@@ -351,27 +363,27 @@ void cbor_builder_float8_callback(void *context, double value) {
 void cbor_builder_null_callback(void *context) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_null();
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   _cbor_builder_append(res, ctx);
 }
 
 void cbor_builder_undefined_callback(void *context) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_undef();
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   _cbor_builder_append(res, ctx);
 }
 
 void cbor_builder_boolean_callback(void *context, bool value) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_build_bool(value);
-  CHECK_RES;
+  CHECK_RES(ctx, res);
   _cbor_builder_append(res, ctx);
 }
 
 void cbor_builder_tag_callback(void *context, uint64_t value) {
   struct _cbor_decoder_context *ctx = context;
   cbor_item_t *res = cbor_new_tag(value);
-  CHECK_RES;
-  _cbor_stack_push(ctx->stack, res, 1);
+  CHECK_RES(ctx, res);
+  PUSH_CTX_STACK(ctx, res, 1);
 }
diff --git a/lib/libcbor/src/cbor/internal/builder_callbacks.h b/lib/libcbor/src/cbor/internal/builder_callbacks.h
index 66eea39b26b..a93afb1ca8f 100644
--- a/lib/libcbor/src/cbor/internal/builder_callbacks.h
+++ b/lib/libcbor/src/cbor/internal/builder_callbacks.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/internal/encoders.c b/lib/libcbor/src/cbor/internal/encoders.c
index e562b49b5f6..657e25c3987 100644
--- a/lib/libcbor/src/cbor/internal/encoders.c
+++ b/lib/libcbor/src/cbor/internal/encoders.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
@@ -67,7 +67,7 @@ size_t _cbor_encode_uint64(uint64_t value, unsigned char *buffer,
     buffer[0] = 0x1B + offset;
 
 #ifdef IS_BIG_ENDIAN
-      memcpy(buffer + 1, &value, 8);
+    memcpy(buffer + 1, &value, 8);
 #else
     buffer[1] = value >> 56;
     buffer[2] = value >> 48;
diff --git a/lib/libcbor/src/cbor/internal/encoders.h b/lib/libcbor/src/cbor/internal/encoders.h
index e9b756070a1..14ad5015cb5 100644
--- a/lib/libcbor/src/cbor/internal/encoders.h
+++ b/lib/libcbor/src/cbor/internal/encoders.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/internal/loaders.c b/lib/libcbor/src/cbor/internal/loaders.c
index fe000788923..af00f135527 100644
--- a/lib/libcbor/src/cbor/internal/loaders.c
+++ b/lib/libcbor/src/cbor/internal/loaders.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/internal/loaders.h b/lib/libcbor/src/cbor/internal/loaders.h
index c39a1b81335..a4c82b209f5 100644
--- a/lib/libcbor/src/cbor/internal/loaders.h
+++ b/lib/libcbor/src/cbor/internal/loaders.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/internal/memory_utils.c b/lib/libcbor/src/cbor/internal/memory_utils.c
index aa049a2f9e2..918b708e331 100644
--- a/lib/libcbor/src/cbor/internal/memory_utils.c
+++ b/lib/libcbor/src/cbor/internal/memory_utils.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/internal/memory_utils.h b/lib/libcbor/src/cbor/internal/memory_utils.h
index 132142383b6..c41ace67948 100644
--- a/lib/libcbor/src/cbor/internal/memory_utils.h
+++ b/lib/libcbor/src/cbor/internal/memory_utils.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/internal/stack.c b/lib/libcbor/src/cbor/internal/stack.c
index fc433ef31f0..79c9e5e5297 100644
--- a/lib/libcbor/src/cbor/internal/stack.c
+++ b/lib/libcbor/src/cbor/internal/stack.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
@@ -21,6 +21,7 @@ void _cbor_stack_pop(struct _cbor_stack *stack) {
 struct _cbor_stack_record *_cbor_stack_push(struct _cbor_stack *stack,
                                             cbor_item_t *item,
                                             size_t subitems) {
+  if (stack->size == CBOR_MAX_STACK_SIZE) return NULL;
   struct _cbor_stack_record *new_top =
       _CBOR_MALLOC(sizeof(struct _cbor_stack_record));
   if (new_top == NULL) return NULL;
diff --git a/lib/libcbor/src/cbor/internal/stack.h b/lib/libcbor/src/cbor/internal/stack.h
index 0d92c96a0e8..42ed04429c7 100644
--- a/lib/libcbor/src/cbor/internal/stack.h
+++ b/lib/libcbor/src/cbor/internal/stack.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/internal/unicode.c b/lib/libcbor/src/cbor/internal/unicode.c
index b92fefeb4d5..98b49728989 100644
--- a/lib/libcbor/src/cbor/internal/unicode.c
+++ b/lib/libcbor/src/cbor/internal/unicode.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/internal/unicode.h b/lib/libcbor/src/cbor/internal/unicode.h
index fc3a5051223..5f645602930 100644
--- a/lib/libcbor/src/cbor/internal/unicode.h
+++ b/lib/libcbor/src/cbor/internal/unicode.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/ints.c b/lib/libcbor/src/cbor/ints.c
index 328d0bdf9f1..880982e5a3e 100644
--- a/lib/libcbor/src/cbor/ints.c
+++ b/lib/libcbor/src/cbor/ints.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/ints.h b/lib/libcbor/src/cbor/ints.h
index 899caefd9bc..f965c298948 100644
--- a/lib/libcbor/src/cbor/ints.h
+++ b/lib/libcbor/src/cbor/ints.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/maps.c b/lib/libcbor/src/cbor/maps.c
index 6b04c5eef10..45140e2cfa2 100644
--- a/lib/libcbor/src/cbor/maps.c
+++ b/lib/libcbor/src/cbor/maps.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/maps.h b/lib/libcbor/src/cbor/maps.h
index d737d6974ee..4e27eefe325 100644
--- a/lib/libcbor/src/cbor/maps.h
+++ b/lib/libcbor/src/cbor/maps.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/serialization.c b/lib/libcbor/src/cbor/serialization.c
index f2666e1b22f..41343eff994 100644
--- a/lib/libcbor/src/cbor/serialization.c
+++ b/lib/libcbor/src/cbor/serialization.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/serialization.h b/lib/libcbor/src/cbor/serialization.h
index 44b47b74755..ef68cf86aec 100644
--- a/lib/libcbor/src/cbor/serialization.h
+++ b/lib/libcbor/src/cbor/serialization.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/streaming.c b/lib/libcbor/src/cbor/streaming.c
index 9bc315687cc..9d85e15f8b8 100644
--- a/lib/libcbor/src/cbor/streaming.c
+++ b/lib/libcbor/src/cbor/streaming.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/streaming.h b/lib/libcbor/src/cbor/streaming.h
index 8c153bb0019..d9d54b8c8e3 100644
--- a/lib/libcbor/src/cbor/streaming.h
+++ b/lib/libcbor/src/cbor/streaming.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/strings.c b/lib/libcbor/src/cbor/strings.c
index 4e201cccb12..209886b5f8c 100644
--- a/lib/libcbor/src/cbor/strings.c
+++ b/lib/libcbor/src/cbor/strings.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
@@ -91,9 +91,9 @@ bool cbor_string_add_chunk(cbor_item_t *item, cbor_item_t *chunk) {
       return false;
     }
 
-    size_t new_chunk_capacity = data->chunk_capacity == 0
-                               ? 1
-                               : CBOR_BUFFER_GROWTH * (data->chunk_capacity);
+    size_t new_chunk_capacity =
+        data->chunk_capacity == 0 ? 1
+                                  : CBOR_BUFFER_GROWTH * (data->chunk_capacity);
     cbor_item_t **new_chunks_data = _cbor_realloc_multiple(
         data->chunks, sizeof(cbor_item_t *), new_chunk_capacity);
 
diff --git a/lib/libcbor/src/cbor/strings.h b/lib/libcbor/src/cbor/strings.h
index b867afa9d88..342d0988fdd 100644
--- a/lib/libcbor/src/cbor/strings.h
+++ b/lib/libcbor/src/cbor/strings.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/tags.c b/lib/libcbor/src/cbor/tags.c
index 0a29e46476f..3853db4d4ae 100644
--- a/lib/libcbor/src/cbor/tags.c
+++ b/lib/libcbor/src/cbor/tags.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.
diff --git a/lib/libcbor/src/cbor/tags.h b/lib/libcbor/src/cbor/tags.h
index 3a805fb096c..6e76c8263d6 100644
--- a/lib/libcbor/src/cbor/tags.h
+++ b/lib/libcbor/src/cbor/tags.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019 Pavel Kalvoda <me@pavelkalvoda.com>
+ * Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
  *
  * libcbor is free software; you can redistribute it and/or modify
  * it under the terms of the MIT license. See LICENSE for details.