/
xd.c
1249 lines (1101 loc) · 50.6 KB
/
xd.c
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extern "C" {
/**
* XRPL Deserializer
* Author: Richard Holland
* Date: 21/5/21
* Pass a hex encoded xrpl binary object via argument to the executable
* Output: JSON
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <pthread.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include "libbase58.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "sha-256.h"
#define DEFAULT_SIZE (2048*1024)
#define DEBUG 0
int append(int indent_level, uint8_t** output, int* upto, int* len, int write_fd, uint8_t* append, int append_len)
{
if (DEBUG)
printf("append: `%s`\n", append);
// stream mode
if (write_fd)
{
char tab[1] = {'\t'};
for (int i = 0; i < indent_level; ++i)
if (write(write_fd, tab, 1) <= 0)
return 0;
int l = strnlen(append, append_len);
if (write(write_fd, append, l) < l)
return 0;
return 1;
}
if (*len - *upto < append_len + 1 + indent_level)
{
*len *= 2;
*output = realloc(*output, *len + 1);
if (*output == 0)
return 0;
}
// tabs for indent
for (int i = 0; i < indent_level; ++i)
*(*output + (*upto)++) = '\t';
for (uint8_t* x = *output + *upto, *end = *output + *upto + append_len; x < end && *append; (*upto)++)
*x++ = *append++;
*(*output + *upto) = '\0';
return 1;
}
#define SBUF(x) x,sizeof(x)
#define APPENDPARAMS indent_level, output, &upto, &len, write_fd
#define APPENDNOINDENT 0, output, &upto, &len, write_fd
#define _REQUIRE(b,suppress)\
{\
if (DEBUG) printf("\nREQUIRE CALLED AT LINE %d FOR %d bytes, remaining = %d\n", __LINE__, (b), remaining);\
if (remaining < (b) && !(!fetch_data_func && suppress))\
{\
if (!fetch_data_func)\
break;\
int upto = n - input;\
if (input_len - upto - remaining < 0)\
{\
fprintf(stderr, "Error: remaining past end of input len, maybe overlarge vl blob in input?\n");\
exit(1);\
}\
int needed = 0;\
do\
{\
needed = (b) - remaining;\
if (needed < 0) needed = 0;\
int bytes_read = (*fetch_data_func)(input + upto + remaining, input_len - upto - remaining, needed, read_fd);\
if (bytes_read < 0)\
{\
if (!suppress)\
fprintf(stderr, "Error: expecting %d nibbles at nibble %d but input was short (only %d remain) code line %d\n", (b)*2, upto*2, remaining * 2, __LINE__);\
break;\
}\
remaining += bytes_read;\
} while(remaining < (b));\
}\
}
/*
printf("\n");\
for (int i = 0; i < (n - input) + remaining; ++i)\
printf("%02X ", input[i]);\
printf("\n");\
*/
#define REQUIRE(b) _REQUIRE(b,0)
#define ADVANCE(x)\
{\
if (fetch_data_func)\
REQUIRE(x);\
n += (x); remaining -= (x);\
int upto = n - input;\
if (fetch_data_func &&\
upto > input_len / 2)\
{\
memcpy(input, n, remaining);\
n = input;\
}\
}
#define HEX(out_raw, in_raw, len_raw)\
{\
uint8_t* out = (out_raw);\
uint8_t* in = (in_raw);\
uint64_t len = (len_raw);\
for (int i = 0; i < len; ++i)\
{\
unsigned char hi = in[i] >> 4U;\
unsigned char lo = in[i] & 0xFU;\
hi += (hi > 9 ? 'A' - 10 : '0');\
lo += (lo > 9 ? 'A' - 10 : '0');\
out[i*2+0] = (char)hi;\
out[i*2+1] = (char)lo;\
}\
}
#define SHORTCHECK() ;/* if (upto >= len) return -1;*/
int to_fixed_point(uint8_t* outbuf, int len, uint64_t mantissa, int64_t exponent, int negative)
{
//printf("mantissa: %llu, exponent: %d\n", mantissa, exponent);
int upto = 0;
char digits[17];
int digitcount = snprintf(digits, 17, "%llu", mantissa);
int digitupto = 0;
int point = exponent + digitcount;
int printed_point = 0;
outbuf[upto++] = '"';
SHORTCHECK();
if (negative)
{
outbuf[upto++] = '-';
SHORTCHECK();
}
for (; point > 0; --point)
{
outbuf[upto++] = (digitupto >= digitcount ? '0' : digits[digitupto++]);
SHORTCHECK();
}
if (digitupto < digitcount) // && point != 0)
{
if (digitupto == 0)
{
outbuf[upto++] = '0';
SHORTCHECK();
}
outbuf[upto++] = '.';
SHORTCHECK();
printed_point = 1;
for (; point < 0; ++point)
{
outbuf[upto++] = '0';
SHORTCHECK();
}
while (digitupto < digitcount)
{
outbuf[upto++] = (digitupto >= digitcount ? '0' : digits[digitupto++]);
SHORTCHECK();
}
}
// backtrack any trailing zeros
if (printed_point)
for (; outbuf[upto-1] == '0'; --upto);
outbuf[upto++] = '"';
SHORTCHECK();
outbuf[upto++] = '\0';
return upto;
}
int is_ascii_currency(uint8_t* y)
{
for (int i = 0; i < 12; ++i)
if (y[i] != 0)
return 0;
for (int i = 12; i < 15; ++i)
{
char x = y[i];
if (x >= 'a' && x <= 'z')
continue;
if (x >= 'A' && x <= 'Z')
continue;
if (x >= '0' && x <= '9')
continue;
return 0;
}
for (int i = 15; i < 20; ++i)
if (y[i] != 0)
return 0;
return 1;
}
int deserialize(
uint8_t** output,
uint8_t* input,
int input_len,
int (*fetch_data_func)(uint8_t*, int, int, int), // may be null, refills the input buffer with whatever is available
int read_fd, // may be 0 if unused, the fd to pass to fetch_data_func (if applicable)
int write_fd) // may be 0 if unused, the fd to write output to, if not specified then *output buffer is used
{
int remaining = input_len - 1;
if (input == 0)
{
// stream mode
//
if (!fetch_data_func)
{
fprintf(stderr, "Error: fetch_data_func function ptr must be supplied in stream mode\n");
return 1;
}
input_len = DEFAULT_SIZE;
input = malloc(DEFAULT_SIZE);
remaining = (*fetch_data_func)(input, input_len, 1, read_fd);
}
int len = DEFAULT_SIZE;
if (output)
{
*output = malloc(len);
}
int upto = 0;
uint8_t* n = input;
int object_level = 0;
int array_level = 0;
int indent_level = 0;
uint64_t parent_is_array = 0;
append(APPENDPARAMS, SBUF("{\n"));
indent_level++;
int nocomma = 1;
while (1)
{
if (fetch_data_func)
{
_REQUIRE(1, 1);
if (remaining == 0)
break;
}
if (array_level < 0)
{
fprintf(stderr, "More close arrays than open arrays! at %d\n", upto);
return 0;
}
if (object_level < 0)
{
fprintf(stderr, "More close objects than open objects! at %d\n", upto);
return 0;
}
int field_code = -1;
int type_code = -1;
if (n == 0)
{
REQUIRE(3);
// 3 byte header
if (remaining < 2)
{
fprintf(stderr, "\nError parsing 3 byte header, not enough bytes remaining\n");
return 0;
}
type_code = *(n+1);
field_code = *(n+2);
ADVANCE(3);
}
else if ((*n >> 4U) == 0)
{
REQUIRE(2);
// 2 byte header (typecode >= 16 && field code < 16)
if (remaining < 1)
{
fprintf(stderr, "\nError parsing 2 byte header, not enough bytes remaining\n");
return 0;
}
field_code = (*n & 0xFU);
type_code = *(n+1);
ADVANCE(2);
}
else if ((*n & 0xFU) == 0)
{
REQUIRE(2);
// 2 byte header (typecode < 16 && field code >= 16)
if (remaining < 1)
{
fprintf(stderr, "\nError parsing 2 byte header, not enough bytes remaining\n");
return 0;
}
type_code = (*n >> 4U);
field_code = *(n+1);
ADVANCE(2);
}
else
{
// 1 byte header
type_code = (*n >> 4U);
field_code = (*n & 0xFU);
ADVANCE(1);
}
int end_of_object = ((type_code == 14 || type_code == 15) && field_code == 1);
int end_of_array = (parent_is_array & 1 && end_of_object);
if (!nocomma && !end_of_array && !end_of_object)
append(APPENDNOINDENT, SBUF(",\n"));
if (end_of_array || end_of_object)
append(APPENDNOINDENT, SBUF("\n"));
if (DEBUG)
printf("end of array: %d, end of object %d\n", end_of_array, end_of_object);
if (!end_of_object && !end_of_array)
_REQUIRE(1,1);
nocomma = 0;
if (type_code == 0)
{
fprintf(stderr, "Invalid typecode 0 at %d\n", upto);
return 0;
}
int error = 0;
int size =
( type_code == 1 ? 2U : // UINT16
( type_code == 2 ? 4U : // uint32
( type_code == 3 ? 8U : // uint64
( type_code == 4 ? 16U : // uint128
( type_code == 5 ? 32U : // uint256
( type_code == 6 ? 8U : // amount (8 bytes or 48 bytes)
( type_code == 7 ? 0U : // blob vl
( type_code == 8 ? 21U : // account
( type_code == 16 ? 1U : // uint8
( type_code == 17 ? 20U : // uint160
( type_code == 18 ? 0U : // pathset
( type_code == 19 ? 0U : // vector256
( type_code == 14 ? 0U : // array/object
( type_code == 15 ? 0U : // array/object
(error=1)))))))))))))));
if (error)
{
fprintf(stderr, "Error, unknown typecode %lu at byte %d\n", type_code, (input - n));
return 0;
}
uint32_t field_id = (type_code << 16U) + field_code;
if (DEBUG)
printf("field_id: %llx\n", field_id);
if (parent_is_array & 1 && !((type_code == 14 || type_code == 15) && field_code == 1))
{
append(APPENDPARAMS, SBUF("{\n"));
indent_level++;
}
if (field_id == -1UL) append(APPENDPARAMS, SBUF("\"Invalid\": "));
else if (field_id == 0UL) append(APPENDPARAMS, SBUF("\"Generic\": "));
else if (field_id == 0x27120101UL) append(APPENDPARAMS, SBUF("\"LedgerEntry\": "));
else if (field_id == 0x27110101UL) append(APPENDPARAMS, SBUF("\"Transaction\": "));
else if (field_id == 0x27130101UL) append(APPENDPARAMS, SBUF("\"Validation\": "));
else if (field_id == 0x27140101UL) append(APPENDPARAMS, SBUF("\"Metadata\": "));
else if (field_id == 0x50101UL) append(APPENDPARAMS, SBUF("\"Hash\": "));
else if (field_id == 0x50102UL) append(APPENDPARAMS, SBUF("\"Index\": "));
else if (field_id == 0x100001UL) append(APPENDPARAMS, SBUF("\"CloseResolution\": "));
else if (field_id == 0x100002UL) append(APPENDPARAMS, SBUF("\"Method\": "));
else if (field_id == 0x100003UL) append(APPENDPARAMS, SBUF("\"TransactionResult\": "));
else if (field_id == 0x100010UL) append(APPENDPARAMS, SBUF("\"TickSize\": "));
else if (field_id == 0x100011UL) append(APPENDPARAMS, SBUF("\"UNLModifyDisabling\": "));
else if (field_id == 0x10001UL) append(APPENDPARAMS, SBUF("\"LedgerEntryType\": "));
else if (field_id == 0x10002UL) append(APPENDPARAMS, SBUF("\"TransactionType\": "));
else if (field_id == 0x10003UL) append(APPENDPARAMS, SBUF("\"SignerWeight\": "));
else if (field_id == 0x10010UL) append(APPENDPARAMS, SBUF("\"Version\": "));
else if (field_id == 0x20002UL) append(APPENDPARAMS, SBUF("\"Flags\": "));
else if (field_id == 0x20003UL) append(APPENDPARAMS, SBUF("\"SourceTag\": "));
else if (field_id == 0x20004UL) append(APPENDPARAMS, SBUF("\"Sequence\": "));
else if (field_id == 0x20005UL) append(APPENDPARAMS, SBUF("\"PreviousTxnLgrSeq\": "));
else if (field_id == 0x20006UL) append(APPENDPARAMS, SBUF("\"LedgerSequence\": "));
else if (field_id == 0x20007UL) append(APPENDPARAMS, SBUF("\"CloseTime\": "));
else if (field_id == 0x20008UL) append(APPENDPARAMS, SBUF("\"ParentCloseTime\": "));
else if (field_id == 0x20009UL) append(APPENDPARAMS, SBUF("\"SigningTime\": "));
else if (field_id == 0x2000aUL) append(APPENDPARAMS, SBUF("\"Expiration\": "));
else if (field_id == 0x2000bUL) append(APPENDPARAMS, SBUF("\"erRate\": "));
else if (field_id == 0x2000cUL) append(APPENDPARAMS, SBUF("\"WalletSize\": "));
else if (field_id == 0x2000dUL) append(APPENDPARAMS, SBUF("\"OwnerCount\": "));
else if (field_id == 0x2000eUL) append(APPENDPARAMS, SBUF("\"DestinationTag\": "));
else if (field_id == 0x20010UL) append(APPENDPARAMS, SBUF("\"HighQualityIn\": "));
else if (field_id == 0x20011UL) append(APPENDPARAMS, SBUF("\"HighQualityOut\": "));
else if (field_id == 0x20012UL) append(APPENDPARAMS, SBUF("\"LowQualityIn\": "));
else if (field_id == 0x20013UL) append(APPENDPARAMS, SBUF("\"LowQualityOut\": "));
else if (field_id == 0x20014UL) append(APPENDPARAMS, SBUF("\"QualityIn\": "));
else if (field_id == 0x20015UL) append(APPENDPARAMS, SBUF("\"QualityOut\": "));
else if (field_id == 0x20016UL) append(APPENDPARAMS, SBUF("\"StampEscrow\": "));
else if (field_id == 0x20017UL) append(APPENDPARAMS, SBUF("\"BondAmount\": "));
else if (field_id == 0x20018UL) append(APPENDPARAMS, SBUF("\"LoadFee\": "));
else if (field_id == 0x20019UL) append(APPENDPARAMS, SBUF("\"OfferSequence\": "));
else if (field_id == 0x2001aUL) append(APPENDPARAMS, SBUF("\"FirstLedgerSequence\": "));
else if (field_id == 0x2001bUL) append(APPENDPARAMS, SBUF("\"LastLedgerSequence\": "));
else if (field_id == 0x2001cUL) append(APPENDPARAMS, SBUF("\"TransactionIndex\": "));
else if (field_id == 0x2001dUL) append(APPENDPARAMS, SBUF("\"OperationLimit\": "));
else if (field_id == 0x2001eUL) append(APPENDPARAMS, SBUF("\"ReferenceFeeUnits\": "));
else if (field_id == 0x2001fUL) append(APPENDPARAMS, SBUF("\"ReserveBase\": "));
else if (field_id == 0x20020UL) append(APPENDPARAMS, SBUF("\"ReserveIncrement\": "));
else if (field_id == 0x20021UL) append(APPENDPARAMS, SBUF("\"SetFlag\": "));
else if (field_id == 0x20022UL) append(APPENDPARAMS, SBUF("\"ClearFlag\": "));
else if (field_id == 0x20023UL) append(APPENDPARAMS, SBUF("\"SignerQuorum\": "));
else if (field_id == 0x20024UL) append(APPENDPARAMS, SBUF("\"CancelAfter\": "));
else if (field_id == 0x20025UL) append(APPENDPARAMS, SBUF("\"FinishAfter\": "));
else if (field_id == 0x20026UL) append(APPENDPARAMS, SBUF("\"SignerListID\": "));
else if (field_id == 0x20027UL) append(APPENDPARAMS, SBUF("\"SettleDelay\": "));
else if (field_id == 0x20028UL) append(APPENDPARAMS, SBUF("\"HookStateCount\": "));
else if (field_id == 0x20029UL) append(APPENDPARAMS, SBUF("\"HookReserveCount\": "));
else if (field_id == 0x2002aUL) append(APPENDPARAMS, SBUF("\"HookDataMaxSize\": "));
else if (field_id == 0x2002bUL) append(APPENDPARAMS, SBUF("\"EmitGeneration\": "));
else if (field_id == 0x30001UL) append(APPENDPARAMS, SBUF("\"IndexNext\": "));
else if (field_id == 0x30002UL) append(APPENDPARAMS, SBUF("\"IndexPrevious\": "));
else if (field_id == 0x30003UL) append(APPENDPARAMS, SBUF("\"BookNode\": "));
else if (field_id == 0x30004UL) append(APPENDPARAMS, SBUF("\"OwnerNode\": "));
else if (field_id == 0x30005UL) append(APPENDPARAMS, SBUF("\"BaseFee\": "));
else if (field_id == 0x30006UL) append(APPENDPARAMS, SBUF("\"ExchangeRate\": "));
else if (field_id == 0x30007UL) append(APPENDPARAMS, SBUF("\"LowNode\": "));
else if (field_id == 0x30008UL) append(APPENDPARAMS, SBUF("\"HighNode\": "));
else if (field_id == 0x30009UL) append(APPENDPARAMS, SBUF("\"DestinationNode\": "));
else if (field_id == 0x3000aUL) append(APPENDPARAMS, SBUF("\"Cookie\": "));
else if (field_id == 0x3000bUL) append(APPENDPARAMS, SBUF("\"ServerVersion\": "));
else if (field_id == 0x3000cUL) append(APPENDPARAMS, SBUF("\"EmitBurden\": "));
else if (field_id == 0x30010UL) append(APPENDPARAMS, SBUF("\"HookOn\": "));
else if (field_id == 0x40001UL) append(APPENDPARAMS, SBUF("\"EmailHash\": "));
else if (field_id == 0x110001UL) append(APPENDPARAMS, SBUF("\"TakerPaysCurrency\": "));
else if (field_id == 0x110002UL) append(APPENDPARAMS, SBUF("\"TakerPaysIssuer\": "));
else if (field_id == 0x110003UL) append(APPENDPARAMS, SBUF("\"TakerGetsCurrency\": "));
else if (field_id == 0x110004UL) append(APPENDPARAMS, SBUF("\"TakerGetsIssuer\": "));
else if (field_id == 0x50001UL) append(APPENDPARAMS, SBUF("\"LedgerHash\": "));
else if (field_id == 0x50002UL) append(APPENDPARAMS, SBUF("\"ParentHash\": "));
else if (field_id == 0x50003UL) append(APPENDPARAMS, SBUF("\"TransactionHash\": "));
else if (field_id == 0x50004UL) append(APPENDPARAMS, SBUF("\"AccountHash\": "));
else if (field_id == 0x50005UL) append(APPENDPARAMS, SBUF("\"PreviousTxnID\": "));
else if (field_id == 0x50006UL) append(APPENDPARAMS, SBUF("\"LedgerIndex\": "));
else if (field_id == 0x50007UL) append(APPENDPARAMS, SBUF("\"WalletLocator\": "));
else if (field_id == 0x50008UL) append(APPENDPARAMS, SBUF("\"RootIndex\": "));
else if (field_id == 0x50009UL) append(APPENDPARAMS, SBUF("\"AccountTxnID\": "));
else if (field_id == 0x5000aUL) append(APPENDPARAMS, SBUF("\"EmitParentTxnID\": "));
else if (field_id == 0x5000bUL) append(APPENDPARAMS, SBUF("\"EmitNonce\": "));
else if (field_id == 0x50010UL) append(APPENDPARAMS, SBUF("\"BookDirectory\": "));
else if (field_id == 0x50011UL) append(APPENDPARAMS, SBUF("\"InvoiceID\": "));
else if (field_id == 0x50012UL) append(APPENDPARAMS, SBUF("\"Nickname\": "));
else if (field_id == 0x50013UL) append(APPENDPARAMS, SBUF("\"Amendment\": "));
else if (field_id == 0x50014UL) append(APPENDPARAMS, SBUF("\"TicketID\": "));
else if (field_id == 0x50015UL) append(APPENDPARAMS, SBUF("\"Digest\": "));
else if (field_id == 0x50016UL) append(APPENDPARAMS, SBUF("\"PayChannel\": "));
else if (field_id == 0x50017UL) append(APPENDPARAMS, SBUF("\"ConsensusHash\": "));
else if (field_id == 0x50018UL) append(APPENDPARAMS, SBUF("\"CheckID\": "));
else if (field_id == 0x50019UL) append(APPENDPARAMS, SBUF("\"ValidatedHash\": "));
else if (field_id == 0x60001UL) append(APPENDPARAMS, SBUF("\"Amount\": "));
else if (field_id == 0x60002UL) append(APPENDPARAMS, SBUF("\"Balance\": "));
else if (field_id == 0x60003UL) append(APPENDPARAMS, SBUF("\"LimitAmount\": "));
else if (field_id == 0x60004UL) append(APPENDPARAMS, SBUF("\"TakerPays\": "));
else if (field_id == 0x60005UL) append(APPENDPARAMS, SBUF("\"TakerGets\": "));
else if (field_id == 0x60006UL) append(APPENDPARAMS, SBUF("\"LowLimit\": "));
else if (field_id == 0x60007UL) append(APPENDPARAMS, SBUF("\"HighLimit\": "));
else if (field_id == 0x60008UL) append(APPENDPARAMS, SBUF("\"Fee\": "));
else if (field_id == 0x60009UL) append(APPENDPARAMS, SBUF("\"SendMax\": "));
else if (field_id == 0x6000aUL) append(APPENDPARAMS, SBUF("\"DeliverMin\": "));
else if (field_id == 0x60010UL) append(APPENDPARAMS, SBUF("\"MinimumOffer\": "));
else if (field_id == 0x60011UL) append(APPENDPARAMS, SBUF("\"RippleEscrow\": "));
else if (field_id == 0x60012UL) append(APPENDPARAMS, SBUF("\"DeliveredAmount\": "));
else if (field_id == 0x70001UL) append(APPENDPARAMS, SBUF("\"PublicKey\": "));
else if (field_id == 0x70002UL) append(APPENDPARAMS, SBUF("\"MessageKey\": "));
else if (field_id == 0x70003UL) append(APPENDPARAMS, SBUF("\"SigningPubKey\": "));
else if (field_id == 0x70004UL) append(APPENDPARAMS, SBUF("\"TxnSignature\": "));
else if (field_id == 0x70006UL) append(APPENDPARAMS, SBUF("\"Signature\": "));
else if (field_id == 0x70007UL) append(APPENDPARAMS, SBUF("\"Domain\": "));
else if (field_id == 0x70008UL) append(APPENDPARAMS, SBUF("\"FundCode\": "));
else if (field_id == 0x70009UL) append(APPENDPARAMS, SBUF("\"RemoveCode\": "));
else if (field_id == 0x7000aUL) append(APPENDPARAMS, SBUF("\"ExpireCode\": "));
else if (field_id == 0x7000bUL) append(APPENDPARAMS, SBUF("\"CreateCode\": "));
else if (field_id == 0x7000cUL) append(APPENDPARAMS, SBUF("\"MemoType\": "));
else if (field_id == 0x7000dUL) append(APPENDPARAMS, SBUF("\"MemoData\": "));
else if (field_id == 0x7000eUL) append(APPENDPARAMS, SBUF("\"MemoFormat\": "));
else if (field_id == 0x70010UL) append(APPENDPARAMS, SBUF("\"Fulfillment\": "));
else if (field_id == 0x70011UL) append(APPENDPARAMS, SBUF("\"Condition\": "));
else if (field_id == 0x70012UL) append(APPENDPARAMS, SBUF("\"MasterSignature\": "));
else if (field_id == 0x70013UL) append(APPENDPARAMS, SBUF("\"UNLModifyValidator\": "));
else if (field_id == 0x70014UL) append(APPENDPARAMS, SBUF("\"NegativeUNLToDisable\": "));
else if (field_id == 0x70015UL) append(APPENDPARAMS, SBUF("\"NegativeUNLToReEnable\": "));
else if (field_id == 0x70016UL) append(APPENDPARAMS, SBUF("\"HookData\": "));
else if (field_id == 0x80001UL) append(APPENDPARAMS, SBUF("\"Account\": "));
else if (field_id == 0x80002UL) append(APPENDPARAMS, SBUF("\"Owner\": "));
else if (field_id == 0x80003UL) append(APPENDPARAMS, SBUF("\"Destination\": "));
else if (field_id == 0x80004UL) append(APPENDPARAMS, SBUF("\"Issuer\": "));
else if (field_id == 0x80005UL) append(APPENDPARAMS, SBUF("\"Authorize\": "));
else if (field_id == 0x80006UL) append(APPENDPARAMS, SBUF("\"Unauthorize\": "));
else if (field_id == 0x80007UL) append(APPENDPARAMS, SBUF("\"Target\": "));
else if (field_id == 0x80008UL) append(APPENDPARAMS, SBUF("\"RegularKey\": "));
else if (field_id == 0x120001UL) append(APPENDPARAMS, SBUF("\"Paths\": "));
else if (field_id == 0x130001UL) append(APPENDPARAMS, SBUF("\"Indexes\": "));
else if (field_id == 0x130002UL) append(APPENDPARAMS, SBUF("\"Hashes\": "));
else if (field_id == 0x130003UL) append(APPENDPARAMS, SBUF("\"Amendments\": "));
else if (field_id == 0xe0002UL) append(APPENDPARAMS, SBUF("\"TransactionMetaData\": "));
else if (field_id == 0xe0003UL) append(APPENDPARAMS, SBUF("\"CreatedNode\": "));
else if (field_id == 0xe0004UL) append(APPENDPARAMS, SBUF("\"DeletedNode\": "));
else if (field_id == 0xe0005UL) append(APPENDPARAMS, SBUF("\"ModifiedNode\": "));
else if (field_id == 0xe0006UL) append(APPENDPARAMS, SBUF("\"PreviousFields\": "));
else if (field_id == 0xe0007UL) append(APPENDPARAMS, SBUF("\"FinalFields\": "));
else if (field_id == 0xe0008UL) append(APPENDPARAMS, SBUF("\"NewFields\": "));
else if (field_id == 0xe0009UL) append(APPENDPARAMS, SBUF("\"TemplateEntry\": "));
else if (field_id == 0xe000aUL) append(APPENDPARAMS, SBUF("\"Memo\": "));
else if (field_id == 0xe000bUL) append(APPENDPARAMS, SBUF("\"SignerEntry\": "));
else if (field_id == 0xe000cUL) append(APPENDPARAMS, SBUF("\"EmitDetails\": "));
else if (field_id == 0xe0010UL) append(APPENDPARAMS, SBUF("\"Signer\": "));
else if (field_id == 0xe0012UL) append(APPENDPARAMS, SBUF("\"Majority\": "));
else if (field_id == 0xe0013UL) append(APPENDPARAMS, SBUF("\"NegativeUNLEntry\": "));
else if (field_id == 0xf0002UL) append(APPENDPARAMS, SBUF("\"SigningAccounts\": "));
else if (field_id == 0xf0003UL) append(APPENDPARAMS, SBUF("\"Signers\": "));
else if (field_id == 0xf0004UL) append(APPENDPARAMS, SBUF("\"SignerEntries\": "));
else if (field_id == 0xf0005UL) append(APPENDPARAMS, SBUF("\"Template\": "));
else if (field_id == 0xf0006UL) append(APPENDPARAMS, SBUF("\"Necessary\": "));
else if (field_id == 0xf0007UL) append(APPENDPARAMS, SBUF("\"Sufficient\": "));
else if (field_id == 0xf0008UL) append(APPENDPARAMS, SBUF("\"AffectedNodes\": "));
else if (field_id == 0xf0009UL) append(APPENDPARAMS, SBUF("\"Memos\": "));
else if (field_id == 0xf0010UL) append(APPENDPARAMS, SBUF("\"Majorities\": "));
else if (field_id == 0xf0011UL) append(APPENDPARAMS, SBUF("\"NegativeUNL\": "));
else if (field_id == 0xE0001UL || field_id == 0xF0001UL)
{
// do nothing (end of object/array)
}
else
{
fprintf(stderr, "Error: Unknown field_id %05X\n", field_id);
break;
}
if (type_code == 18)
{
append(APPENDNOINDENT, SBUF("[\n"));
indent_level++;
append(APPENDPARAMS, SBUF("[\n"));
indent_level++;
for (int path_count = 0; 1; ++path_count)
{
uint8_t path_type = *n;
ADVANCE(1);
//printf("\nPATH TYPE: %02X\n", path_type);
if (path_type == 0x00U)
break;
if (path_type == 0xFFU)
{
append(APPENDNOINDENT, SBUF("\n"));
indent_level--;
append(APPENDPARAMS, SBUF("],\n"));
append(APPENDPARAMS, SBUF("[\n"));
indent_level++;
path_count = -1;
continue;
}
if (path_count > 0)
append(APPENDNOINDENT, SBUF(",\n"));
append(APPENDPARAMS, SBUF("{\n"));
indent_level++;
char path_type_str[128];
int l = snprintf(path_type_str, 128, "\"type\": %d,\n", path_type);
append(APPENDPARAMS, path_type_str, l);
if (path_type & 0x01U)
{
REQUIRE(20);
path_type -= 0x01U;
// account
append(APPENDPARAMS, SBUF("\"account\": \""));
char acc[64];
size_t acc_size = 64;
if (!b58check_enc(acc, &acc_size, 0, n, 20))
{
fprintf(stderr, "Error: could not base58 encode\n");
return 0;
}
acc[0] = 'r';
append(APPENDNOINDENT, acc, acc_size);
if (path_type)
append(APPENDNOINDENT, SBUF("\",\n"));
else
append(APPENDNOINDENT, SBUF("\"\n"));
ADVANCE(20);
}
if (path_type & 0x10U)
{
// currency
path_type -= 0x10U;
append(APPENDPARAMS, SBUF("\"currency\": \""));
REQUIRE(20);
char currency[41];
uint64_t* c = (void*)(n);
if (!c[0] && !c[1] && !*((uint32_t*)(n + 16)))
{
currency[0] = 'X';
currency[1] = 'R';
currency[2] = 'P';
currency[3] = '\0';
}
else if (is_ascii_currency(n))
{
currency[0] = n[12];
currency[1] = n[13];
currency[2] = n[14];
currency[3] = '\0';
}
else
HEX(currency, n, 20);
currency[40] = '\0';
append(APPENDNOINDENT, currency, 40);
if (path_type)
append(APPENDNOINDENT, SBUF("\",\n"));
else
append(APPENDNOINDENT, SBUF("\"\n"));
ADVANCE(20);
}
if (path_type & 0x20U)
{
// issuer
REQUIRE(20);
// account
append(APPENDPARAMS, SBUF("\"issuer\": \""));
char acc[64];
size_t acc_size = 64;
if (!b58check_enc(acc, &acc_size, 0, n, 20))
{
fprintf(stderr, "Error: could not base58 encode\n");
return 0;
}
acc[0] = 'r';
append(APPENDNOINDENT, acc, acc_size);
append(APPENDNOINDENT, SBUF("\"\n"));
ADVANCE(20);
}
indent_level--;
append(APPENDPARAMS, SBUF("}"));
}
append(APPENDNOINDENT, SBUF("\n"));
indent_level--;
append(APPENDPARAMS, SBUF("]\n"));
indent_level--;
append(APPENDPARAMS, SBUF("]\n"));
}
else if (type_code == 14)
{ // object
if (field_code == 1)
{
indent_level--;
object_level--;
append(APPENDPARAMS, SBUF("}"));
parent_is_array >>= 1U;
if (parent_is_array & 1)
{
indent_level--;
append(APPENDNOINDENT, SBUF("\n"));
append(APPENDPARAMS, SBUF("}"));
}
}
else
{
append(APPENDNOINDENT, SBUF("{\n"));
object_level++;
indent_level++;
nocomma = 1;
parent_is_array <<= 1U;
}
}
else if (type_code == 15)
{ // array
if (field_code == 1)
{
indent_level--;
array_level--;
append(APPENDPARAMS, SBUF("]"));
parent_is_array >>= 1U;
if (parent_is_array & 1)
{
indent_level--;
append(APPENDNOINDENT, SBUF("\n"));
append(APPENDPARAMS, SBUF("}"));
}
}
else
{
append(APPENDNOINDENT, SBUF("[\n"));
array_level++;
indent_level++;
nocomma = 1;
parent_is_array <<= 1U;
parent_is_array |= 1U;
}
}
else if (type_code == 8) // account
{
// printf("upto: %d, remaining: %d\n", upto, remaining);
REQUIRE(21);
char acc[64];
size_t acc_size = 64;
if (!b58check_enc(acc, &acc_size, 0, n + 1, 20))
{
fprintf(stderr, "Error: could not base58 encode\n");
return 0;
}
acc[0] = 'r';
append(APPENDNOINDENT, SBUF("\""));
append(APPENDNOINDENT, acc, acc_size);
append(APPENDNOINDENT, SBUF("\""));
ADVANCE(21);
}
else if (type_code == 4 || type_code == 5 || type_code == 17)
{
// uint128, uint256, uint160
REQUIRE(size);
append(APPENDNOINDENT, SBUF("\""));
char hexout[513];
HEX(hexout, n, size);
append(APPENDNOINDENT, hexout, size*2);
append(APPENDNOINDENT, SBUF("\""));
ADVANCE(size);
}
else if (type_code == 7 || type_code == 19) // blob
{
int64_t field_len = *n;
if (field_len <= 192)
{
// one byte size
ADVANCE(1);
}
else if (field_len <= 12480)
{
// two byte size
REQUIRE(2);
field_len = 193 + ((field_len - 193) * 256) + *(n+1);
ADVANCE(2);
}
else
{
// three byte size
REQUIRE(3);
field_len = 12481 + ((field_len - 241) * 0xFFFFU) + ((*(n+1)) * 256) + *(n+2);
ADVANCE(3);
}
//printf("vl len: %d\n", field_len);
REQUIRE(field_len);
append(APPENDNOINDENT, SBUF("\""));
char hexout[1024];
int already_printed = 0;
int to_print = field_len - already_printed;
do
{
if (to_print > sizeof(hexout)/2)
to_print = sizeof(hexout)/2;
HEX(hexout, n + already_printed, to_print);
append(APPENDNOINDENT, hexout, to_print*2);
already_printed += to_print;
to_print = field_len - already_printed;
} while (to_print > 0);
append(APPENDNOINDENT, SBUF("\""));
ADVANCE(field_len);
}
else if (type_code == 6) // amount
{
if ((*n) >> 7U)
{
size = 48U;
REQUIRE(48);
uint16_t exponent = (((uint16_t)(*n)) << 8U) +
(uint16_t)(*(n+1));
exponent &= 0b0011111111000000;
exponent >>= 6U;
char str[1024];
int is_neg = (((*n) >> 6U) & 1U == 0);
uint64_t mantissa =
(((uint64_t)((*(n+1) & 0b111111))) << 48U) +
(((uint64_t)((*(n+2)))) << 40U) +
(((uint64_t)((*(n+3)))) << 32U) +
(((uint64_t)((*(n+4)))) << 24U) +
(((uint64_t)((*(n+5)))) << 16U) +
(((uint64_t)((*(n+6)))) << 8U) +
(((uint64_t)((*(n+7)))) << 0U);
int ascii = is_ascii_currency(n+8);
char issuer[64];
size_t issuer_size = 64;
if (!b58check_enc(issuer, &issuer_size, 0, n + 28, 20))
{
fprintf(stderr, "Error: could not base58 encode\n");
return 0;
}
issuer[0] = 'r';
char currency[41];
currency[40] = '\0';
uint64_t* c = (void*)(n + 8);
if (!c[0] && !c[1] && !*((uint32_t*)(n + 8 + 16)))
{
currency[0] = 'X';
currency[1] = 'R';
currency[2] = 'P';
currency[3] = '\0';
}
else if (ascii)
{
for (int i = 0; i < 3; ++i)
currency[i] = (char)(*(n + 8 + 12 + i));
currency[3] = '\0';
}
else
{
for (int i = 0; i < 20; ++i)
{
unsigned char hi = (*(n+8+i)) >> 4U;
unsigned char lo = (*(n+8+i)) & 0xFU;
hi += (hi > 9 ? 'A' - 10 : '0');
lo += (lo > 9 ? 'A' - 10 : '0');
currency[i*2+0] = (char)hi;
currency[i*2+1] = (char)lo;
}
}
int32_t exp = (int32_t)(exponent);
exp -= 97;
append(APPENDNOINDENT, SBUF("{\n"));
// snprintf(str, 1024, "\t\"value\": \"%s%lluE%d\",\n", (is_neg ? "-" : ""), mantissa, exp);
{
uint8_t fixed[128];
if (to_fixed_point(fixed, 128, mantissa, exp, is_neg) == -1)
return fprintf(stderr, "Error: could not convert mantissa/exp to fixed point %lluE%d\n", mantissa, exp);
snprintf(str, 1024, "\t\"value\": %s,\n", fixed);
append(APPENDPARAMS, str, 1024);
}
append(APPENDPARAMS, SBUF("\t\"currency\": \""));
append(APPENDNOINDENT, SBUF(currency));
append(APPENDNOINDENT, SBUF("\",\n"));
append(APPENDPARAMS, SBUF("\t\"issuer\": \""));
append(APPENDNOINDENT, SBUF(issuer));
append(APPENDNOINDENT, SBUF("\"\n"));
append(APPENDPARAMS, SBUF("}"));
ADVANCE(48);
}
else
{
REQUIRE(8);
char str[24];
int negative = ((*n) >> 6U == 0);
uint64_t number =
((uint64_t)((*n) & 0b111111U) << 56U) +
((uint64_t)(*(n+1)) << 48U) +
((uint64_t)(*(n+2)) << 40U) +
((uint64_t)(*(n+3)) << 32U) +
((uint64_t)(*(n+4)) << 24U) +
((uint64_t)(*(n+5)) << 16U) +
((uint64_t)(*(n+6)) << 8U) +
((uint64_t)(*(n+7)) << 0U);
int l = snprintf(str, 23, "\"%s%llu\"", (negative ? "-" : ""), number);
append(APPENDNOINDENT, str, l);
ADVANCE(8);
}
}
else if (type_code == 1 || type_code == 2 || type_code == 3 || type_code == 16) // uint16
{
uint64_t number = 0;
if (type_code == 1) // uint16
{
REQUIRE(2);
number = (((uint64_t)(*(n+0))) << 8U) +
(((uint64_t)(*(n+1))) << 0U);
ADVANCE(2);
int skip_print = 1;
if (field_code == 2)
{
// transaction type
if (number == 21) append(APPENDNOINDENT, SBUF("\"AccountDelete\""));
else if (number == 3) append(APPENDNOINDENT, SBUF("\"AccountSet\""));
else if (number == 18) append(APPENDNOINDENT, SBUF("\"CheckCancel\""));
else if (number == 17) append(APPENDNOINDENT, SBUF("\"CheckCash\""));
else if (number == 16) append(APPENDNOINDENT, SBUF("\"CheckCreate\""));
else if (number == 9) append(APPENDNOINDENT, SBUF("\"Contract\""));
else if (number == 19) append(APPENDNOINDENT, SBUF("\"DepositPreauth\""));
else if (number == 100) append(APPENDNOINDENT, SBUF("\"EnableAmendment\""));
else if (number == 4) append(APPENDNOINDENT, SBUF("\"EscrowCancel\""));
else if (number == 1) append(APPENDNOINDENT, SBUF("\"EscrowCreate\""));
else if (number == 2) append(APPENDNOINDENT, SBUF("\"EscrowFinish\""));
else if (number == 6) append(APPENDNOINDENT, SBUF("\"NickNameSet\""));
else if (number == 8) append(APPENDNOINDENT, SBUF("\"OfferCancel\""));
else if (number == 7) append(APPENDNOINDENT, SBUF("\"OfferCreate\""));
else if (number == 0) append(APPENDNOINDENT, SBUF("\"Payment\""));
else if (number == 15) append(APPENDNOINDENT, SBUF("\"PaymentChannelClaim\""));
else if (number == 13) append(APPENDNOINDENT, SBUF("\"PaymentChannelCreate\""));
else if (number == 14) append(APPENDNOINDENT, SBUF("\"PaymentChannelFund\""));
else if (number == 101) append(APPENDNOINDENT, SBUF("\"SetFee\""));
else if (number == 5) append(APPENDNOINDENT, SBUF("\"SetRegularKey\""));
else if (number == 12) append(APPENDNOINDENT, SBUF("\"SignerListSet\""));
else if (number == 11) append(APPENDNOINDENT, SBUF("\"TicketCancel\""));
else if (number == 10) append(APPENDNOINDENT, SBUF("\"TicketCreate\""));
else if (number == 20) append(APPENDNOINDENT, SBUF("\"TrustSet\""));
else if (number == 102) append(APPENDNOINDENT, SBUF("\"UNLModify\""));
else
skip_print = 0;
}
else if (field_code == 1)
{
// ledger type
if (number == (uint16_t)('a')) append(APPENDNOINDENT, SBUF("\"AccountRoot\""));
else if (number == (uint16_t)('f')) append(APPENDNOINDENT, SBUF("\"Ammendments\""));
else if (number == (uint16_t)('C')) append(APPENDNOINDENT, SBUF("\"Check\""));
else if (number == (uint16_t)('p')) append(APPENDNOINDENT, SBUF("\"DepositPreauth\""));
else if (number == (uint16_t)('d')) append(APPENDNOINDENT, SBUF("\"DirectoryNode\""));
else if (number == (uint16_t)('u')) append(APPENDNOINDENT, SBUF("\"Escrow\""));