simple cbor print

client/fido/cbortools.c

@@ -11,20 +11,199 @@
 //
 
 #include "cbortools.h"
+#include <stdlib.h>
 #include "cbor.h"
+#include "util.h"
 
+static void indent(int nestingLevel) {
+	while (nestingLevel--)
+		printf("  ");
+}
 
-int TinyCborParser(uint8_t *data, size_t length, CborValue *cb) {
+static CborError dumpelm(CborValue *it, bool *got_next, int nestingLevel) {
+	CborError err;
+	*got_next = false;
+
+	CborType type = cbor_value_get_type(it);
+	indent(nestingLevel);
+	switch (type) {
+	case CborMapType: 
+	case CborArrayType: {
+		printf(type == CborArrayType ? "Array[" : "Map[");
+		break;
+	}
+
+	case CborIntegerType: {
+		int64_t val;
+		cbor_value_get_int64(it, &val);     // can't fail
+		printf("%lld", (long long)val);
+		break;
+	}
+
+	case CborByteStringType: {
+		uint8_t *buf;
+		size_t n;
+		err = cbor_value_dup_byte_string(it, &buf, &n, it);
+		*got_next = true;
+		if (err)
+			return err;     // parse error
+		printf("%s", sprint_hex(buf, n));
+		free(buf);
+		break;
+	}
+
+	case CborTextStringType: {
+		char *buf;
+		size_t n;
+		err = cbor_value_dup_text_string(it, &buf, &n, it);
+		*got_next = true;
+		if (err)
+			return err;     // parse error
+		printf("%s", buf);
+		free(buf);
+		break;
+	}
+
+	case CborTagType: {
+		CborTag tag;
+		cbor_value_get_tag(it, &tag);     
+		printf("Tag(%lld)", (long long)tag);
+		break;
+	}
+
+	case CborSimpleType: {
+		uint8_t type;
+		cbor_value_get_simple_type(it, &type); 
+		printf("simple(%u)", type);
+		break;
+	}
+
+	case CborNullType:
+		printf("null");
+		break;
+
+	case CborUndefinedType:
+		printf("undefined");
+		break;
+
+	case CborBooleanType: {
+		bool val;
+		cbor_value_get_boolean(it, &val);       // can't fail
+		printf("%s", val ? "true" : "false");
+		break;
+	}
+
+	case CborDoubleType: {
+		double val;
+		if (false) {
+			float f;
+	case CborFloatType:
+			cbor_value_get_float(it, &f);
+			val = f;
+		} else {
+			cbor_value_get_double(it, &val);
+		}
+		printf("%g", val);
+		break;
+	}
+	case CborHalfFloatType: {
+		uint16_t val;
+		cbor_value_get_half_float(it, &val);
+		printf("__f16(%04x)", val);
+		break;
+	}
+
+	case CborInvalidType:
+		printf("CborInvalidType!!!");
+		break;
+	}
+	
+	return CborNoError;
+}
+
+static CborError dumprecursive(CborValue *it, int nestingLevel) {
+	while (!cbor_value_at_end(it)) {
+		CborError err;
+		CborType type = cbor_value_get_type(it);
+//printf("^%x^", type);
+		bool got_next;
+
+		switch (type) {
+		case CborMapType: /*{
+			// recursive type
+			CborValue recursed;
+			assert(cbor_value_is_container(it));
+			printf("Map[\n");
+			err = cbor_value_enter_container(it, &recursed);
+			if (err)
+				return err;       // parse error
+
+			// name
+			err = dumpelm(&recursed, next!!!!, nestingLevel + 1);
+			if (err)
+				return err;
+
+			printf(":");
+			err = cbor_value_advance_fixed(it);
+			if (err)
+				return err;
+
+			// value
+printf("*");
+			err = dumprecursive(&recursed, nestingLevel + 1);
+			if (err)
+				return err;       // parse error
+
+			err = cbor_value_leave_container(it, &recursed);
+			if (err)
+				return err;       // parse error
+			indent(nestingLevel);
+			printf("]\n");
+			continue;
+		}*/
+		case CborArrayType: {
+			// recursive type
+			CborValue recursed;
+			assert(cbor_value_is_container(it));
+			indent(nestingLevel);
+			printf(type == CborArrayType ? "Array[\n" : "Map[\n");
+			err = cbor_value_enter_container(it, &recursed);
+			if (err)
+				return err;       // parse error
+			err = dumprecursive(&recursed, nestingLevel + 1);
+			if (err)
+				return err;       // parse error
+			err = cbor_value_leave_container(it, &recursed);
+			if (err)
+				return err;       // parse error
+			indent(nestingLevel);
+			printf("]\n");
+			continue;
+		}
+
+		default: {
+			err = dumpelm(it, &got_next, nestingLevel);
+			printf("\n");
+			if (err)
+				return err;
+			break;
+		}
+		}
+
+		if (!got_next) {
+			err = cbor_value_advance_fixed(it);
+			if (err)
+				return err;
+		}
+	}
+	return CborNoError;
+}
+
+int TinyCborInit(uint8_t *data, size_t length, CborValue *cb) {
 	CborParser parser;
 	CborError err = cbor_parser_init(data, length, 0, &parser, cb);
-   // if (!err)
-	 //   err = dumprecursive(cb, 0);
-
-	if (err) {
-		fprintf(stderr, "CBOR parsing failure at offset %d: %s\n",
-				cb->ptr - data, cbor_error_string(err));
-		return 1;
-	}	
+    if (err)
+		return err;
 	
 	return 0;
 }
@@ -32,10 +211,20 @@ int TinyCborParser(uint8_t *data, size_t length, CborValue *cb) {
 int TinyCborPrintFIDOPackage(uint8_t *data, size_t length) {
 	CborValue cb;
 	int res;
-	res = TinyCborParser(data, length, &cb);
+	res = TinyCborInit(&data[1], length - 1, &cb);
 	if (res)
 		return res;
 	
-	return 0;
+	
+	
+    CborError err = dumprecursive(&cb, 0);
+
+	if (err) {
+		fprintf(stderr, "CBOR parsing failure at offset %d: %s\n",
+				cb.ptr - data, cbor_error_string(err));
+		return 1;
 	}	
 	
+	
+	return 0;
+}