SuperNET/iguana/exchanges/LP_nativeDEX.c

/******************************************************************************
 * Copyright © 2014-2017 The SuperNET Developers.                             *
 *                                                                            *
 * See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at                  *
 * the top-level directory of this distribution for the individual copyright  *
 * holder information and the developer policies on copyright and licensing.  *
 *                                                                            *
 * Unless otherwise agreed in a custom licensing agreement, no part of the    *
 * SuperNET software, including this file may be copied, modified, propagated *
 * or distributed except according to the terms contained in the LICENSE file *
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 ******************************************************************************/
//alice only coins GAME UNO BTM ANC: GAME BTCD PPC RDD XZC POT EAC FTC BASH SPR WDC UNO XPM XCN BELA CHC DIME MEC NAUT MED AUR MAX DGC RIC EB3 DOT BTM GEO ANC CANN ICASH WBB SRC PTC ADZ TIPS EQT START EFL FST FJC NYC GCN

//
//  LP_nativeDEX.c
//  marketmaker
//
// new features:
// bittrex balancing
// detect port conflicts on enable
// stats
// dynamic txid2 allocation

// unduplicated bugs:
// swap cancel should cleanly cancel

#include <stdio.h>
#include "LP_include.h"
portable_mutex_t LP_peermutex,LP_UTXOmutex,LP_utxomutex,LP_commandmutex,LP_cachemutex,LP_swaplistmutex,LP_forwardmutex,LP_pubkeymutex,LP_networkmutex,LP_psockmutex,LP_coinmutex,LP_messagemutex,LP_portfoliomutex,LP_electrummutex;
int32_t LP_canbind;

struct LP_utxoinfo  *LP_utxoinfos[2],*LP_utxoinfos2[2];
struct LP_peerinfo  *LP_peerinfos,*LP_mypeer;
struct LP_forwardinfo *LP_forwardinfos;
struct iguana_info *LP_coins;
#include "LP_network.c"

char *activecoins[] = { "BTC", "KMD" };
char GLOBAL_DBDIR[] = { "DB" };
char USERPASS[65],USERPASS_WIFSTR[64],LP_myipaddr[64],LP_publicaddr[64],USERHOME[512] = { "/root" };
char LP_gui[16] = { "cli" };

char *default_LPnodes[] = { "5.9.253.195", "5.9.253.196", "5.9.253.197", "5.9.253.198", "5.9.253.199", "5.9.253.200", "5.9.253.201", "5.9.253.202", "5.9.253.203", };//"5.9.253.204" }; //

//uint32_t LP_deadman_switch;
uint16_t LP_fixed_pairport,LP_publicport;
int32_t LP_mybussock = -1;
int32_t LP_mypubsock = -1;
int32_t LP_mypullsock = -1;
int32_t LP_pendingswaps,LP_showwif,USERPASS_COUNTER,IAMLP = 0;
uint32_t LP_sessionid;
double LP_profitratio = 1.;
bits256 LP_mypub25519,LP_mypriv25519;
uint8_t LP_myrmd160[20];

// stubs

void tradebot_swap_balancingtrade(struct basilisk_swap *swap,int32_t iambob)
{
    
}

void tradebot_pendingadd(cJSON *tradejson,char *base,double basevolume,char *rel,double relvolume)
{
    // add to trades
}

char *LP_getdatadir()
{
    return(USERHOME);
}

char *blocktrail_listtransactions(char *symbol,char *coinaddr,int32_t num,int32_t skip)
{
    return(0);
}

#include "LP_socket.c"
#include "LP_secp.c"
#include "LP_bitcoin.c"
#include "LP_coins.c"
#include "LP_rpc.c"
#include "LP_prices.c"
#include "LP_utxo.c"
#include "LP_scan.c"
#include "LP_transaction.c"
#include "LP_remember.c"
#include "LP_swap.c"
#include "LP_peers.c"
#include "LP_utxos.c"
#include "LP_forwarding.c"
#include "LP_ordermatch.c"
#include "LP_portfolio.c"
#include "LP_messages.c"
#include "LP_commands.c"

char *LP_command_process(void *ctx,char *myipaddr,int32_t pubsock,cJSON *argjson,uint8_t *data,int32_t datalen)
{
    char *retstr=0;
    if ( jobj(argjson,"result") != 0 || jobj(argjson,"error") != 0 )
        return(0);
    if ( LP_tradecommand(ctx,myipaddr,pubsock,argjson,data,datalen) <= 0 )
    {
        if ( (retstr= stats_JSON(ctx,myipaddr,pubsock,argjson,"127.0.0.1",0)) != 0 )
        {
            //printf("%s PULL.[%d]-> (%s)\n",myipaddr != 0 ? myipaddr : "127.0.0.1",datalen,retstr);
            //if ( pubsock >= 0 ) //strncmp("{\"error\":",retstr,strlen("{\"error\":")) != 0 &&
                //LP_send(pubsock,retstr,(int32_t)strlen(retstr)+1,0);
        }
    }
    return(retstr);
}

char *LP_decrypt(uint8_t *ptr,int32_t *recvlenp)
{
    uint8_t decoded[LP_ENCRYPTED_MAXSIZE + crypto_box_ZEROBYTES],*nonce,*cipher; int32_t recvlen,cipherlen; char *jsonstr = 0;
    recvlen = *recvlenp;
    nonce = &ptr[2];
    cipher = &ptr[2 + crypto_box_NONCEBYTES];
    cipherlen = recvlen - (2 + crypto_box_NONCEBYTES);
    if ( cipherlen > 0 && cipherlen <= sizeof(decoded) )
    {
        if ( (jsonstr= (char *)_SuperNET_decipher(nonce,cipher,decoded,cipherlen,GENESIS_PUBKEY,LP_mypriv25519)) != 0 )
        {
            recvlen = (cipherlen - crypto_box_ZEROBYTES);
            if ( strlen(jsonstr)+1 != recvlen )
            {
                printf("unexpected len %d vs recvlen.%d\n",(int32_t)strlen(jsonstr)+1,recvlen);
                jsonstr = 0;
            } else printf("decrypted (%s)\n",jsonstr);
        }
    } else printf("cipher.%d too big for %d\n",cipherlen,(int32_t)sizeof(decoded));
    *recvlenp = recvlen;
    return(jsonstr);
}

char *LP_process_message(void *ctx,char *typestr,char *myipaddr,int32_t pubsock,uint8_t *ptr,int32_t recvlen,int32_t recvsock)
{
    static uint32_t dup,uniq;
    int32_t i,len,cipherlen,datalen=0,duplicate=0,encrypted=0; char *method,*method2,*tmp,*cipherstr,*retstr=0,*jsonstr=0; cJSON *argjson; uint32_t crc32;
    crc32 = calc_crc32(0,&ptr[2],recvlen-2);
    if ( (crc32 & 0xff) == ptr[0] && ((crc32>>8) & 0xff) == ptr[1] )
        encrypted = 1;
    portable_mutex_lock(&LP_commandmutex);
    i = LP_crc32find(&duplicate,-1,crc32);
    if ( duplicate != 0 )
        dup++;
    else uniq++;
    if ( (rand() % 1000) == 0 )
        printf("%s dup.%d (%u / %u) %.1f%% encrypted.%d recv.%u [%02x %02x] vs %02x %02x U.%d\n",typestr,duplicate,dup,dup+uniq,(double)100*dup/(dup+uniq),encrypted,crc32,ptr[0],ptr[1],crc32&0xff,(crc32>>8)&0xff,LP_mypeer != 0 ? LP_mypeer->numutxos : -1);
    if ( duplicate == 0 )
    {
        if ( i >= 0 )
            LP_crc32find(&duplicate,i,crc32);
        if ( encrypted != 0 )
            jsonstr = LP_decrypt(ptr,&recvlen);
        else if ( (datalen= is_hexstr((char *)ptr,0)) > 0 )
        {
            datalen >>= 1;
            jsonstr = malloc(datalen + 1);
            decode_hex((void *)jsonstr,datalen,(char *)ptr);
            jsonstr[datalen] = 0;
        } else jsonstr = (char *)ptr;
        if ( jsonstr != 0 && (argjson= cJSON_Parse(jsonstr)) != 0 )
        {
            uint8_t decoded[LP_ENCRYPTED_MAXSIZE + crypto_box_ZEROBYTES];
            //printf("[%s]\n",jsonstr);
            cipherlen = 0;
            if ( (cipherstr= jstr(argjson,"cipher")) != 0 && (cipherlen= is_hexstr(cipherstr,0)) > 32 && cipherlen <= sizeof(decoded)*2 )
            {
                method2 = jstr(argjson,"method2");
                if ( (method= jstr(argjson,"method")) != 0 && (strcmp(method,"encrypted") == 0 ||(method2 != 0 && strcmp(method2,"encrypted") == 0)) )
                {
                    cipherlen >>= 1;
                    decode_hex(decoded,cipherlen,cipherstr);
                    crc32 = calc_crc32(0,&decoded[2],cipherlen-2);
                    if ( (tmp= LP_decrypt(decoded,&cipherlen)) != 0 )
                    {
                        jsonstr = tmp;
                        free_json(argjson);
                        argjson = cJSON_Parse(jsonstr);
                        recvlen = cipherlen;
                        encrypted = 1;
                        if ( (crc32 & 0xff) == decoded[0] && ((crc32>>8) & 0xff) == decoded[1] )
                        {
                            i = LP_crc32find(&duplicate,-1,crc32);
                            if ( duplicate == 0 && i >= 0 )
                                LP_crc32find(&duplicate,i,crc32);
                        }
                        printf("%02x %02x %08x duplicate.%d decrypted.(%s)\n",decoded[0],decoded[1],crc32,duplicate,jsonstr);
                    }
                    else
                    {
                        printf("packet not for this node %u\n",crc32);
                    }
                } else printf("error (%s) method is %s\n",jsonstr,method);
            }
            if ( jsonstr != 0 && argjson != 0 )
            {
                len = (int32_t)strlen(jsonstr) + 1;
                if ( (retstr= LP_command_process(ctx,myipaddr,pubsock,argjson,&((uint8_t *)ptr)[len],recvlen - len)) != 0 )
                {
                }
                free_json(argjson);
            }
        }
    } //else printf("DUPLICATE.(%s)\n",(char *)ptr);
    portable_mutex_unlock(&LP_commandmutex);
    if ( jsonstr != 0 && (void *)jsonstr != (void *)ptr && encrypted == 0 )
        free(jsonstr);
    if ( ptr != 0 )
        nn_freemsg(ptr), ptr = 0;
    return(retstr);
}

void LP_utxo_spentcheck(int32_t pubsock,struct LP_utxoinfo *utxo)
{
    struct _LP_utxoinfo u; struct iguana_info *coin; char str[65]; uint32_t now = (uint32_t)time(NULL);
    if ( IAMLP != 0 && (coin= LP_coinfind(utxo->coin)) != 0 && coin->inactive != 0 )
        return;
    //printf("%s lag.%d\n",bits256_str(str,utxo->txid),now-utxo->lastspentcheck);
    if ( utxo->T.spentflag == 0 && now > utxo->T.lastspentcheck+60 )
    {
        u = (utxo->iambob != 0) ? utxo->deposit : utxo->fee;
        utxo->T.lastspentcheck = now;
        if ( LP_txvalue(0,utxo->coin,utxo->payment.txid,utxo->payment.vout) == 0 )
        {
            printf("txid.%s %s/v%d %.8f has been spent\n",utxo->coin,bits256_str(str,utxo->payment.txid),utxo->payment.vout,dstr(utxo->payment.value));
            LP_spentnotify(utxo,0);
        }
        else if ( LP_txvalue(0,utxo->coin,u.txid,u.vout) == 0 )
        {
            printf("txid2.%s %s/v%d %.8f has been spent\n",utxo->coin,bits256_str(str,u.txid),u.vout,dstr(u.value));
            LP_spentnotify(utxo,1);
        }
    }
}

void LP_myutxo_updates(void *ctx,int32_t pubsock,char *passphrase)
{
    //LP_utxopurge(0); not good to disrupt existing pointers
    LP_privkey_updates(ctx,pubsock,passphrase,0);
}

int32_t LP_peer_utxosquery(struct LP_peerinfo *mypeer,uint16_t myport,int32_t pubsock,struct LP_peerinfo *peer,uint32_t now,int32_t interval,int32_t maxentries)
{
    int32_t lastn,n = -1;
    if ( peer->lastutxos < now-interval )
    {
        //lastn = peer->numutxos - mypeer->numutxos + LP_PROPAGATION_SLACK;
        //if ( lastn < LP_PROPAGATION_SLACK * 2 )
        lastn = LP_PROPAGATION_SLACK * 2;
        if ( mypeer == 0 || strcmp(peer->ipaddr,mypeer->ipaddr) != 0 )
        {
            peer->lastutxos = now;
            //printf("query utxos from %s\n",peer->ipaddr);
            n = LP_utxosquery(mypeer,pubsock,peer->ipaddr,peer->port,"",lastn,mypeer != 0 ? mypeer->ipaddr : "127.0.0.1",myport,maxentries);
        }
    } //else printf("LP_peer_utxosquery skip.(%s) %u\n",peer->ipaddr,peer->lastutxos);
    return(n);
}

int32_t LP_sock_check(char *typestr,void *ctx,char *myipaddr,int32_t pubsock,int32_t sock)
{
    int32_t recvlen=1,nonz = 0; void *ptr; char *retstr; struct nn_pollfd pfd;
    if ( sock >= 0 )
    {
        while ( nonz < 1000 && recvlen > 0 )
        {
            memset(&pfd,0,sizeof(pfd));
            pfd.fd = sock;
            pfd.events = NN_POLLIN;
            if ( nn_poll(&pfd,1,1) != 1 )
                break;
            if ( (recvlen= nn_recv(sock,&ptr,NN_MSG,0)) > 0 )
            {
                nonz++;
                if ( (retstr= LP_process_message(ctx,typestr,myipaddr,pubsock,ptr,recvlen,sock)) != 0 )
                    free(retstr);
            }
        }
    }
    return(nonz);
}

void command_rpcloop(void *myipaddr)
{
    int32_t nonz = 0; char *origipaddr; struct LP_peerinfo *peer,*tmp; void *ctx; //struct iguana_info *coin,*ctmp;
    ctx = bitcoin_ctx();
    if ( (origipaddr= myipaddr) == 0 )
        origipaddr = "127.0.0.1";
    while ( 1 )
    {
        nonz = 0;
        HASH_ITER(hh,LP_peerinfos,peer,tmp)
        {
            if ( peer->errors >= LP_MAXPEER_ERRORS )
            {
                if ( (rand() % 10000) == 0 )
                    peer->errors--;
                else continue;
            }
            //printf("check %s pubsock.%d\n",peer->ipaddr,peer->subsock);
            nonz += LP_sock_check("PULL",ctx,origipaddr,LP_mypubsock,peer->subsock);
        }
        /*HASH_ITER(hh,LP_coins,coin,ctmp) // firstrefht,firstscanht,lastscanht
        {
            if ( coin->inactive != 0 )
                continue;
            if ( coin->bussock >= 0 )
                nonz += LP_sock_check(coin->symbol,ctx,origipaddr,-1,coin->bussock,LP_profitratio - 1.);
        }*/
        if ( LP_mypullsock >= 0 )
            nonz += LP_sock_check("SUB",ctx,origipaddr,-1,LP_mypullsock);
        //if ( LP_mybussock >= 0 )
        //    nonz += LP_sock_check("BUS",ctx,origipaddr,-1,LP_mybussock);
        if ( nonz == 0 )
            usleep(10000);
    }
}

int32_t LP_mainloop_iter(void *ctx,char *myipaddr,struct LP_peerinfo *mypeer,int32_t pubsock,char *pushaddr,uint16_t myport,char *passphrase)
{
    static uint32_t counter,numpeers,lastresync; //lastforward
    struct LP_utxoinfo *utxo,*utmp; cJSON *retjson; struct iguana_info *coin,*ctmp; char *retstr,*origipaddr; struct LP_peerinfo *peer,*tmp,*mostpeer; uint32_t id,now; int32_t mostutxos,nonz = 0,n=0,num,lastn=-1;
    now = (uint32_t)time(NULL);
    if ( (origipaddr= myipaddr) == 0 )
        origipaddr = "127.0.0.1";
    if ( mypeer == 0 )
        myipaddr = "127.0.0.1";
    //if ( LP_canbind == 0 ) printf("counter.%d canbind.%d peers\n",counter,LP_canbind);
    numpeers = LP_numpeers();
    mostutxos = 0;
    mostpeer = 0;
    HASH_ITER(hh,LP_peerinfos,peer,tmp)
    {
        if ( peer->errors >= LP_MAXPEER_ERRORS )
        {
            if ( (rand() % 10000) == 0 )
            {
                peer->errors--;
                peer->diduquery = 0;
            }
            if ( IAMLP == 0 )
                continue;
        }
        if ( now > peer->lastpeers+60 && peer->numpeers > 0 && (peer->numpeers != numpeers || (rand() % 10000) == 0) )
        {
            //if ( IAMLP != 0 )
            //    printf("numpeers.%d updatepeer.%s lag.%d\n",numpeers,peer->ipaddr,now-peer->lastpeers);
            peer->lastpeers = now;
            //if ( IAMLP != 0 && peer->numpeers != numpeers )
            //    printf("%s num.%d vs %d\n",peer->ipaddr,peer->numpeers,numpeers);
            if ( strcmp(peer->ipaddr,myipaddr) != 0 )
                LP_peersquery(mypeer,pubsock,peer->ipaddr,peer->port,myipaddr,myport);
            if ( IAMLP != 0 && LP_mypeer != 0 && strcmp(peer->ipaddr,myipaddr) != 0 )
            {
                if ( (retstr= issue_LP_numutxos(peer->ipaddr,peer->port,LP_mypeer->ipaddr,LP_mypeer->port,LP_mypeer->numpeers,LP_mypeer->numutxos)) != 0 )
                {
                    //printf("%d <- (%s)\n",peer->numutxos,retstr);
                    if ( (retjson= cJSON_Parse(retstr)) != 0 )
                    {
                        if ( (num= jint(retjson,"numutxos")) > peer->numutxos )
                            peer->numutxos = num;
                        if ( (num= jint(retjson,"numpeers")) > peer->numpeers )
                            peer->numpeers = num;
                        if ( (id= juint(retjson,"session")) != 0 )
                            peer->sessionid = id;
                        free_json(retjson);
                    }
                    free(retstr);
                    retstr = 0;
                }
            }
        }
        if ( peer->diduquery == 0 )
        {
            if ( lastn != n || n < 20 )
            {
                lastn = n;
                n = LP_peer_utxosquery(mypeer,myport,pubsock,peer,now,60,100);
            }
            LP_peer_pricesquery(peer->ipaddr,peer->port);
            peer->diduquery = now;
        }
        if ( peer->numutxos > mostutxos )
        {
            mostutxos = peer->numutxos;
            mostpeer = peer;
        }
    }
    //printf("numutxos vs mine.%d\n",LP_mypeer != 0 ? LP_mypeer->numutxos : -1);
    if ( LP_mypeer != 0 && mostpeer != 0 && ((LP_mypeer->numutxos < mostutxos && time(NULL) > lastresync+10) || time(NULL) > lastresync+60) )
    {
        //printf("myutxos.%d most.%d %s\n",LP_mypeer->numutxos,mostutxos,mostpeer->ipaddr);
        LP_peer_utxosquery(LP_mypeer,myport,pubsock,mostpeer,now,60,(mostutxos-LP_mypeer->numutxos) * 2);
        lastresync = (uint32_t)time(NULL);
        //LP_peer_pricesquery(mostpeer->ipaddr,mostpeer->port);
    }
    if ( (counter % 6000) == 10 )
    {
        LP_myutxo_updates(ctx,pubsock,passphrase);
        HASH_ITER(hh,LP_utxoinfos[0],utxo,utmp)
        {
            LP_utxo_spentcheck(pubsock,utxo);
        }
        HASH_ITER(hh,LP_utxoinfos[1],utxo,utmp)
        {
            LP_utxo_spentcheck(pubsock,utxo);
            if ( LP_isunspent(utxo) > 0 && utxo->T.lasttime == 0 && LP_ismine(utxo) > 0 )
            {
                char str[65]; printf("publish mybob %s\n",bits256_str(str,utxo->payment.txid));
                LP_utxo_clientpublish(utxo);
            }
        }
    }
    HASH_ITER(hh,LP_coins,coin,ctmp) // firstrefht,firstscanht,lastscanht
    {
        int32_t height; bits256 zero; struct LP_address *ap,*atmp; struct LP_address_utxo *up,*utmp;
        //printf("%s ref.%d scan.%d to %d, longest.%d\n",coin->symbol,coin->firstrefht,coin->firstscanht,coin->lastscanht,coin->longestchain);
        if ( coin->inactive != 0 || coin->electrum != 0 )
            continue;
        if ( time(NULL) > coin->lastmonitor+60 )
        {
            portable_mutex_lock(&coin->txmutex);
            HASH_ITER(hh,coin->addresses,ap,atmp)
            {
                DL_FOREACH_SAFE(ap->utxos,up,utmp)
                {
                    if ( up->spentflag == 0 )
                    {
                        if ( LP_txvalue(0,coin->symbol,up->U.txid,up->U.vout) == 0 )
                            up->spentflag = (uint32_t)time(NULL);
                    }
                }
            }
            portable_mutex_unlock(&coin->txmutex);
            coin->lastmonitor = (uint32_t)time(NULL);
        }
        memset(zero.bytes,0,sizeof(zero));
        if ( time(NULL) > coin->lastgetinfo+LP_GETINFO_INCR )
        {
            if ( (height= LP_getheight(coin)) > coin->longestchain )
            {
                coin->longestchain = height;
                if ( coin->firstrefht != 0 )
                    printf(">>>>>>>>>> set %s longestchain %d (ref.%d [%d, %d])\n",coin->symbol,height,coin->firstrefht,coin->firstscanht,coin->lastscanht);
            } else LP_mempoolscan(coin->symbol,zero);
            /*if ( (obj= LP_getinfo(coin->symbol)) != 0 )
            {
                if ( (height= jint(obj,"blocks")) > coin->longestchain )
                {
                    coin->longestchain = height;
                    if ( coin->firstrefht != 0 )
                        printf(">>>>>>>>>> set %s longestchain %d (ref.%d [%d, %d])\n",coin->symbol,height,coin->firstrefht,coin->firstscanht,coin->lastscanht);
                } else LP_mempoolscan(coin->symbol,zero);
                free_json(obj);
            } else printf("error getting info.%s\n",coin->symbol);*/
            coin->lastgetinfo = (uint32_t)time(NULL);
        }
        if ( coin->firstrefht == 0 )
            continue;
        else if ( coin->firstscanht == 0 )
            coin->lastscanht = coin->firstscanht = coin->firstrefht;
        else if ( coin->firstrefht < coin->firstscanht )
        {
            printf("detected %s firstrefht.%d < firstscanht.%d\n",coin->symbol,coin->firstrefht,coin->firstscanht);
            coin->lastscanht = coin->firstscanht = coin->firstrefht;
        }
        if ( coin->lastscanht == coin->longestchain+1 )
            continue;
        else if ( coin->lastscanht > coin->longestchain+1 )
        {
            printf("detected chain rewind lastscanht.%d vs longestchain.%d, first.%d ref.%d\n",coin->lastscanht,coin->longestchain,coin->firstscanht,coin->firstrefht);
            LP_undospends(coin,coin->longestchain-1);
            LP_mempoolscan(coin->symbol,zero);
            coin->lastscanht = coin->longestchain - 1;
            if ( coin->firstscanht < coin->lastscanht )
                coin->lastscanht = coin->firstscanht;
            continue;
        }
        //printf("%s ref.%d scan.%d to %d, longest.%d\n",coin->symbol,coin->firstrefht,coin->firstscanht,coin->lastscanht,coin->longestchain);
        if ( LP_blockinit(coin,coin->lastscanht) < 0 )
        {
            printf("blockinit.%s %d error\n",coin->symbol,coin->lastscanht);
            continue;
        }
        coin->lastscanht++;
        break;
    }
    if ( (counter % 6000) == 60 )
    {
        if ( (retstr= basilisk_swapentry(0,0)) != 0 )
        {
            //printf("SWAPS.(%s)\n",retstr);
            free(retstr);
        }
    }
    counter++;
    return(nonz);
}

void LP_initcoins(void *ctx,int32_t pubsock,cJSON *coins,char *passphrase)
{
    int32_t i,n; cJSON *item;
    for (i=0; i<sizeof(activecoins)/sizeof(*activecoins); i++)
    {
        fprintf(stderr,"%s ",activecoins[i]);
        LP_coinfind(activecoins[i]);
        LP_priceinfoadd(activecoins[i]);
    }
    if ( (n= cJSON_GetArraySize(coins)) > 0 )
    {
        for (i=0; i<n; i++)
        {
            item = jitem(coins,i);
            fprintf(stderr,"%s ",jstr(item,"coin"));
            LP_coincreate(item);
            LP_priceinfoadd(jstr(item,"coin"));
        }
    }
    fprintf(stderr,"privkey updates\n");
    LP_privkey_updates(ctx,pubsock,passphrase,1);
}

void LP_initpeers(int32_t pubsock,struct LP_peerinfo *mypeer,char *myipaddr,uint16_t myport,char *seednode)
{
    int32_t i,j; uint32_t r;
    if ( IAMLP != 0 )
    {
        LP_mypeer = mypeer = LP_addpeer(mypeer,pubsock,myipaddr,myport,0,0,0,0,LP_sessionid);
        if ( myipaddr == 0 || mypeer == 0 )
        {
            printf("couldnt get myipaddr or null mypeer.%p\n",mypeer);
            exit(-1);
        }
        if ( seednode == 0 || seednode[0] == 0 )
        {
            for (i=0; i<sizeof(default_LPnodes)/sizeof(*default_LPnodes); i++)
            {
                //if ( (rand() % 100) > 25 )
                //    continue;
                LP_peersquery(mypeer,pubsock,default_LPnodes[i],myport,mypeer->ipaddr,myport);
            }
        } else LP_peersquery(mypeer,pubsock,seednode,myport,mypeer->ipaddr,myport);
    }
    else
    {
        if ( myipaddr == 0 )
        {
            printf("couldnt get myipaddr\n");
            exit(-1);
        }
        if ( seednode == 0 || seednode[0] == 0 )
        {
            OS_randombytes((void *)&r,sizeof(r));
            for (j=0; j<sizeof(default_LPnodes)/sizeof(*default_LPnodes); j++)
            {
                i = (r + j) % (sizeof(default_LPnodes)/sizeof(*default_LPnodes));
                LP_peersquery(mypeer,pubsock,default_LPnodes[i],myport,"127.0.0.1",myport);
            }
        } else LP_peersquery(mypeer,pubsock,seednode,myport,"127.0.0.1",myport);
    }
}

void LPinit(uint16_t myport,uint16_t mypullport,uint16_t mypubport,uint16_t mybusport,char *passphrase,int32_t amclient,char *userhome,cJSON *argjson)
{
    char *myipaddr=0; long filesize,n; int32_t timeout,pubsock=-1; struct LP_peerinfo *mypeer=0; char pushaddr[128],subaddr[128],bindaddr[128]; void *ctx = bitcoin_ctx();
    LP_showwif = juint(argjson,"wif");
    if ( passphrase == 0 || passphrase[0] == 0 )
    {
        printf("jeezy says we cant use the nullstring as passphrase and I agree\n");
        exit(-1);
    }
    IAMLP = !amclient;
#ifndef __linux__
    if ( IAMLP != 0 )
    {
        printf("must run a unix node for LP node\n");
        exit(-1);
    }
#endif
    OS_randombytes((void *)&n,sizeof(n));
    if ( jobj(argjson,"gui") != 0 )
        safecopy(LP_gui,jstr(argjson,"gui"),sizeof(LP_gui));
    if ( jobj(argjson,"canbind") == 0 )
    {
#ifndef __linux__
        LP_canbind = IAMLP;
#else
        LP_canbind = IAMLP;
#endif
    }
    else
    {
        LP_canbind = jint(argjson,"canbind");
        printf(">>>>>>>>>>> set LP_canbind.%d\n",LP_canbind);
    }
    if ( LP_canbind > 1000 && LP_canbind < 65536 )
        LP_fixed_pairport = LP_canbind;
    if ( LP_canbind != 0 )
        LP_canbind = 1;
    srand((int32_t)n);
    if ( userhome != 0 && userhome[0] != 0 )
    {
        safecopy(USERHOME,userhome,sizeof(USERHOME));
#ifdef __APPLE__
        strcat(USERHOME,"/Library/Application Support");
#endif
    }
    portable_mutex_init(&LP_peermutex);
    portable_mutex_init(&LP_utxomutex);
    portable_mutex_init(&LP_UTXOmutex);
    portable_mutex_init(&LP_commandmutex);
    portable_mutex_init(&LP_swaplistmutex);
    portable_mutex_init(&LP_cachemutex);
    portable_mutex_init(&LP_networkmutex);
    portable_mutex_init(&LP_forwardmutex);
    portable_mutex_init(&LP_psockmutex);
    portable_mutex_init(&LP_coinmutex);
    portable_mutex_init(&LP_pubkeymutex);
    portable_mutex_init(&LP_electrummutex);
    portable_mutex_init(&LP_messagemutex);
    portable_mutex_init(&LP_portfoliomutex);
    LP_sessionid = (uint32_t)time(NULL);
    printf("getting myipaddr sessionid.%u\n",LP_sessionid);
    if ( system("curl -s4 checkip.amazonaws.com > /tmp/myipaddr") == 0 )
    {
        if ( (myipaddr= OS_filestr(&filesize,"/tmp/myipaddr")) != 0 && myipaddr[0] != 0 )
        {
            n = strlen(myipaddr);
            if ( myipaddr[n-1] == '\n' )
                myipaddr[--n] = 0;
            strcpy(LP_myipaddr,myipaddr);
        } else printf("error getting myipaddr\n");
    } else printf("error issuing curl\n");
    if ( IAMLP != 0 )
    {
        pubsock = -1;
        nanomsg_transportname(0,subaddr,myipaddr,mypubport);
        nanomsg_transportname(1,bindaddr,myipaddr,mypubport);
        if ( (pubsock= nn_socket(AF_SP,NN_PUB)) >= 0 )
        {
            if ( nn_bind(pubsock,bindaddr) >= 0 )
            {
                timeout = 10;
                nn_setsockopt(pubsock,NN_SOL_SOCKET,NN_SNDTIMEO,&timeout,sizeof(timeout));
            }
            else
            {
                printf("error binding to (%s).%d\n",subaddr,pubsock);
                if ( pubsock >= 0 )
                    nn_close(pubsock), pubsock = -1;
            }
        } else printf("error getting pubsock %d\n",pubsock);
        printf(">>>>>>>>> myipaddr.%s (%s) pullsock.%d\n",myipaddr,subaddr,pubsock);
        LP_mypubsock = pubsock;
    }
    printf("got %s, initpeers\n",myipaddr);
    LP_initpeers(pubsock,mypeer,myipaddr,myport,jstr(argjson,"seednode"));
    printf("get public socket\n");
    LP_mypullsock = LP_initpublicaddr(ctx,&mypullport,pushaddr,myipaddr,mypullport,0);
    strcpy(LP_publicaddr,pushaddr);
    LP_publicport = mypullport;
    LP_mybussock = LP_coinbus(mybusport);
    //LP_deadman_switch = (uint32_t)time(NULL);
    printf("canbind.%d my command address is (%s) pullsock.%d pullport.%u\n",LP_canbind,pushaddr,LP_mypullsock,mypullport);
    printf("initcoins\n");
    LP_initcoins(ctx,pubsock,jobj(argjson,"coins"),passphrase);
    if ( IAMLP != 0 && OS_thread_create(malloc(sizeof(pthread_t)),NULL,(void *)LP_psockloop,(void *)&myipaddr) != 0 )
    {
        printf("error launching LP_psockloop for (%s)\n",myipaddr);
        exit(-1);
    }
    if ( OS_thread_create(malloc(sizeof(pthread_t)),NULL,(void *)stats_rpcloop,(void *)&myport) != 0 )
    {
        printf("error launching stats rpcloop for port.%u\n",myport);
        exit(-1);
    }
    if ( OS_thread_create(malloc(sizeof(pthread_t)),NULL,(void *)command_rpcloop,(void *)&myipaddr) != 0 )
    {
        printf("error launching stats rpcloop for port.%u\n",myport);
        exit(-1);
    }
    if ( OS_thread_create(malloc(sizeof(pthread_t)),NULL,(void *)queue_loop,(void *)&myipaddr) != 0 )
    {
        printf("error launching stats rpcloop for port.%u\n",myport);
        exit(-1);
    }
    if ( OS_thread_create(malloc(sizeof(pthread_t)),NULL,(void *)prices_loop,(void *)&myipaddr) != 0 )
    {
        printf("error launching stats rpcloop for port.%u\n",myport);
        exit(-1);
    }
    //if ( (retstr= basilisk_swapentry(0,0)) != 0 )
    //    free(retstr);
    while ( 1 )
    {
        //fprintf(stderr,".");
        if ( LP_mainloop_iter(ctx,myipaddr,mypeer,pubsock,pushaddr,myport,passphrase) == 0 )
            usleep(1000000 / MAINLOOP_PERSEC);
    }
}