more bitcoin

This commit is contained in:
aiju 2012-06-08 23:48:41 +02:00
parent baea7ec1e2
commit 42656f38ef
8 changed files with 1219 additions and 21 deletions

View file

@ -15,7 +15,8 @@ static char *phasenames[] = {
struct State {
ECpriv p;
char *sign;
uchar buf[100];
int n;
};
static int
@ -36,11 +37,11 @@ decryptkey(Fsstate *fss, char *key, char *password)
memset(buf, 0, sizeof buf);
base58enc(keyenc, buf, 37);
if(keyenc[0] != 0x80)
return failure(fss, "invalid key '%s'", buf);
return RpcNeedkey;
sha2_256(keyenc, 33, hash, nil);
sha2_256(hash, 32, hash, nil);
if(memcmp(keyenc + 33, hash, 4) != 0)
return failure(fss, "checksum error");
return RpcNeedkey;
st = fss->ps;
st->p.d = betomp(keyenc + 1, 32, nil);
st->p.x = mpnew(0);
@ -67,6 +68,7 @@ ecdsainit(Proto *, Fsstate *fss)
dom.h = uitomp(1, nil);
dom.G = strtoec(&dom, "0279BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798", nil, nil);
}
fss->ps = nil;
if((iscli = isclient(_strfindattr(fss->attr, "role"))) < 0)
return failure(fss, nil);
if(iscli==0)
@ -91,7 +93,7 @@ ecdsainit(Proto *, Fsstate *fss)
}
if(key == nil || password == nil)
return RpcNeedkey;
fss->ps = malloc(sizeof(State));
fss->ps = emalloc(sizeof(State));
ret = decryptkey(fss, key, password);
if(ret != RpcOk)
return ret;
@ -103,12 +105,11 @@ ecdsainit(Proto *, Fsstate *fss)
return RpcOk;
}
static char *
derencode(mpint *r, mpint *s)
static void
derencode(mpint *r, mpint *s, uchar *buf, int *n)
{
uchar buf[100], rk[33], sk[33];
char *str;
int rl, sl, i;
uchar rk[33], sk[33];
int rl, sl;
mptobe(r, rk, 32, nil);
mptobe(s, sk, 32, nil);
@ -132,17 +133,13 @@ derencode(mpint *r, mpint *s)
buf[4 + rl] = 0x02;
buf[5 + rl] = sl;
memmove(buf + 6 + rl, sk, sl);
str = malloc(1024);
for(i = 0; i < 6 + rl + sl; i++)
sprint(str + 2 * i, "%.2x", buf[i]);
return str;
*n = 6 + rl + sl;
}
static int
ecdsawrite(Fsstate *fss, void *va, uint n)
{
State *st;
uchar hash[32];
mpint *r, *s;
st = fss->ps;
@ -150,12 +147,10 @@ ecdsawrite(Fsstate *fss, void *va, uint n)
default:
return phaseerror(fss, "write");
case CHaveKey:
sha2_256(va, n, hash, nil);
sha2_256(hash, 32, hash, nil);
r = mpnew(0);
s = mpnew(0);
ecdsasign(&dom, &st->p, hash, 32, r, s);
st->sign = derencode(r, s);
ecdsasign(&dom, &st->p, va, n, r, s);
derencode(r, s, st->buf, &st->n);
mpfree(r);
mpfree(s);
fss->phase = CHaveText;
@ -166,11 +161,16 @@ ecdsawrite(Fsstate *fss, void *va, uint n)
static int
ecdsaread(Fsstate *fss, void *va, uint *n)
{
State *st;
st = fss->ps;
switch(fss->phase){
default:
return phaseerror(fss, "read");
case CHaveText:
*n = snprint(va, *n, ((State *)fss->ps)->sign);
if(*n > st->n)
*n = st->n;
memcpy(va, st->buf, *n);
fss->phase = Established;
return RpcOk;
}
@ -182,13 +182,13 @@ ecdsaclose(Fsstate *fss)
State *st;
st = fss->ps;
if(st == nil)
return;
if(st->p.x != nil){
mpfree(st->p.x);
mpfree(st->p.y);
mpfree(st->p.d);
}
if(st->sign != nil)
free(st->sign);
free(st);
fss->ps = nil;
}

28
sys/src/cmd/btc/dat.h Normal file
View file

@ -0,0 +1,28 @@
typedef struct Aux Aux;
typedef struct DirEntry DirEntry;
enum
{
TROOT,
TADDR,
TADDRSUB,
TADDRTX,
TADDRBALANCE,
};
struct DirEntry
{
char *name;
Qid qid;
int par;
char *(*walk)(Fid *, char *, Qid *);
char *(*str)(DirEntry *, Aux *);
void (*write)(Req *);
int sub[20];
};
struct Aux
{
char *addr;
char *str;
};

254
sys/src/cmd/btc/fs.c Normal file
View file

@ -0,0 +1,254 @@
#include <u.h>
#include <libc.h>
#include <fcall.h>
#include <thread.h>
#include <9p.h>
#include "dat.h"
Reqqueue *queue;
static char *addrwalk(Fid *, char *, Qid *);
char *balancestr(DirEntry *, Aux *);
char *txstr(DirEntry *, Aux *);
DirEntry entr[] = {
[TROOT] = {
.name = "",
.qid = {TROOT, 0, QTDIR},
.par = TROOT,
.sub = {TADDR},
},
[TADDR] = {
.name = "addr",
.qid = {TADDR, 0, QTDIR},
.walk = addrwalk,
.par = TROOT,
},
[TADDRSUB] = {
.qid = {TADDRSUB, 0, QTDIR},
.par = TADDR,
.sub = {TADDRBALANCE, TADDRTX},
},
[TADDRBALANCE] = {
.name = "balance",
.qid = {TADDRBALANCE, 0, 0},
.par = TADDRSUB,
.str = balancestr,
},
[TADDRTX] = {
.name = "tx",
.qid = {TADDRTX, 0, 0},
.par = TADDRSUB,
.str = txstr,
},
};
void
pfree(void **v)
{
if(*v != nil)
free(*v);
*v = nil;
}
static void
btcattach(Req *req)
{
req->ofcall.qid = (Qid){0, 0, QTDIR};
req->fid->qid = req->ofcall.qid;
req->fid->aux = emalloc9p(sizeof(Aux));
respond(req, nil);
}
static char *
addrwalk(Fid *fid, char *name, Qid *qid)
{
Aux *a;
a = fid->aux;
pfree(&a->addr);
a->addr = strdup(name);
fid->qid = entr[TADDRSUB].qid;
*qid = fid->qid;
return nil;
}
static char *
btcwalk1(Fid *fid, char *name, Qid *qid)
{
DirEntry *d;
int *s;
d = entr + (int)fid->qid.path;
if(strcmp(name, "..") == 0){
fid->qid = entr[d->par].qid;
*qid = fid->qid;
return nil;
}
if(d->walk)
return d->walk(fid, name, qid);
for(s = d->sub; *s; s++)
if(strcmp(entr[*s].name, name) == 0){
fid->qid = entr[*s].qid;
*qid = fid->qid;
return nil;
}
return "directory entry not found";
}
static char *
btcclone(Fid *oldfid, Fid *newfid)
{
Aux *a, *b;
a = oldfid->aux;
b = emalloc9p(sizeof(Aux));
memcpy(b, a, sizeof(Aux));
if(b->addr)
b->addr = strdup(b->addr);
newfid->aux = b;
return nil;
}
static void
btcopenread(Req *req)
{
DirEntry *d;
Aux *a;
d = entr + (int)req->fid->qid.path;
a = req->fid->aux;
a->str = d->str(d, a);
if(a->str == nil)
responderror(req);
else
respond(req, nil);
}
static void
btcopen(Req *req)
{
DirEntry *d;
d = entr + (int)req->fid->qid.path;
switch(req->ifcall.mode & 3){
case OREAD:
if(d->str == nil && (req->fid->qid.type & QTDIR) == 0)
goto noperm;
reqqueuepush(queue, req, btcopenread);
return;
case OWRITE:
if(d->write == nil)
goto noperm;
break;
case ORDWR:
if(d->str == nil || d->write == nil)
goto noperm;
break;
case OEXEC:
goto noperm;
}
respond(req, nil);
return;
noperm:
respond(req, "permission denied");
}
static void
fill(Dir *de, int t, Aux *a)
{
DirEntry *d;
d = entr + t;
de->qid = d->qid;
if(d->qid.type & QTDIR)
de->mode = 0555;
else
de->mode = (d->str ? 0444 : 0) | (d->write ? 0222 : 0);
if(d->name != nil)
de->name = strdup(d->name);
else if(a->addr != nil)
de->name = strdup(a->addr);
else
de->name = strdup("");
de->uid = strdup("satoshi");
de->gid = strdup("satoshi");
de->muid = strdup("satoshi");
de->atime = de->mtime = time(0);
}
static void
btcstat(Req *req)
{
fill(&req->d, (int)req->fid->qid.path, req->fid->aux);
respond(req, nil);
}
static int
btcdirgen(int n, Dir *dir, void *aux)
{
DirEntry *d;
d = entr + (int)((Req*)aux)->fid->qid.path;
if(n >= nelem(d->sub) || d->sub[n] == 0)
return -1;
fill(dir, d->sub[n], ((Req*)aux)->fid->aux);
return 0;
}
static void
btcread(Req *req)
{
DirEntry *d;
Aux *a;
d = entr + (int)req->fid->qid.path;
a = req->fid->aux;
if(req->fid->qid.type & QTDIR){
dirread9p(req, btcdirgen, req);
respond(req, nil);
}else if(d->str && a->str){
readstr(req, a->str);
respond(req, nil);
}else
respond(req, "permission denied");
}
static void
btcflush(Req *req)
{
reqqueueflush(queue, req->oldreq);
respond(req, nil);
}
static void
btcdestroyfid(Fid *fid)
{
Aux *a;
a = fid->aux;
if(a != nil){
pfree(&a->addr);
pfree(&a->str);
free(a);
}
fid->aux = nil;
}
Srv btcsrv = {
.attach = btcattach,
.walk1 = btcwalk1,
.clone = btcclone,
.stat = btcstat,
.open = btcopen,
.read = btcread,
.flush = btcflush,
.destroyfid = btcdestroyfid,
};
void
gofs(void)
{
queue = reqqueuecreate();
threadpostmountsrv(&btcsrv, nil, "/mnt/btc", 0);
}

129
sys/src/cmd/btc/httpfs.c Normal file
View file

@ -0,0 +1,129 @@
#include <u.h>
#include <libc.h>
#include <fcall.h>
#include <thread.h>
#include <9p.h>
#include <String.h>
#include "dat.h"
#include "json.h"
void gofs(void);
char *
graburl(char *url)
{
int fd, fd2, n, rc, size;
char buf[2048];
char *res;
fd = open("/mnt/web/clone", ORDWR);
if(fd < 0)
return nil;
if(read(fd, buf, 512) < 0){
close(fd);
return nil;
}
n = atoi(buf);
sprint(buf, "url %s", url);
if(write(fd, buf, strlen(buf)) < 0){
close(fd);
return nil;
}
sprint(buf, "/mnt/web/%d/body", n);
fd2 = open(buf, OREAD);
if(fd2 < 0){
close(fd);
return nil;
}
size = 0;
res = nil;
while((rc = readn(fd2, buf, sizeof buf)) > 0){
res = realloc(res, size + rc + 1);
memcpy(res + size, buf, rc);
size += rc;
res[size] = 0;
}
close(fd);
close(fd2);
if(rc < 0){
free(res);
return nil;
}
return res;
}
static void
parsetx(String *str, JSON *j, JSON *l)
{
JSONEl *e;
JSON *k;
char buf[512];
for(e = j->first; e != nil; e = e->next){
k = jsonbyname(e->val, "prev_out");
sprint(buf, "%s %lld ", jsonstr(jsonbyname(k, "addr")), (vlong)jsonbyname(k, "value")->n);
s_append(str, buf);
}
s_append(str, "| ");
for(e = l->first; e != nil; e = e->next){
sprint(buf, "%s %lld ", jsonstr(jsonbyname(e->val, "addr")), (vlong)jsonbyname(e->val, "value")->n);
s_append(str, buf);
}
}
char *
balancestr(DirEntry *, Aux *a)
{
char *s;
char buf[512];
sprint(buf, "http://blockchain.info/q/addressbalance/%s", a->addr);
s = graburl(buf);
if(s == nil)
return nil;
return s;
}
char *
txstr(DirEntry *, Aux *a)
{
char *s;
char buf[512];
JSON *j, *k;
JSONEl *e;
String *str;
sprint(buf, "http://blockchain.info/rawaddr/%s", a->addr);
s = graburl(buf);
if(s == nil)
return nil;
j = jsonparse(s);
free(s);
if(j == nil)
return nil;
str = s_new();
k = jsonbyname(j, "txs");
if(k == nil)
goto err;
for(e = k->first; e != nil; e = e->next){
sprint(buf, "%d %s %d ", (int)(jsonbyname(e->val, "time")->n), jsonstr(jsonbyname(e->val, "hash")), (int)(jsonbyname(e->val, "block_height")->n));
s_append(str, buf);
parsetx(str, jsonbyname(e->val, "inputs"), jsonbyname(e->val, "out"));
s_putc(str, '\n');
}
s_terminate(str);
s = str->base;
free(str);
jsonfree(j);
return s;
err:
s_free(str);
jsonfree(j);
return nil;
}
void
threadmain()
{
gofs();
}

326
sys/src/cmd/btc/json.c Normal file
View file

@ -0,0 +1,326 @@
#include <u.h>
#include <libc.h>
#include <ctype.h>
#include "json.h"
typedef struct Lex Lex;
enum {
TEOF,
TSTRING = (1<<(8*sizeof(Rune)))+1,
TNUM,
TNULL,
TFALSE,
TTRUE,
};
struct Lex
{
char *s;
int t;
double n;
char buf[4096];
Rune peeked;
jmp_buf jmp;
int canjmp;
};
static Rune
getch(Lex *l)
{
Rune r;
if(l->peeked){
r = l->peeked;
l->peeked = 0;
return r;
}
l->s += chartorune(&r, l->s);
return r;
}
static Rune
peekch(Lex *l)
{
if(!l->peeked)
l->peeked = getch(l);
return l->peeked;
}
static int
lex(Lex *l)
{
Rune r;
char *t;
for(;;){
r = peekch(l);
if(r != 0x20 && r != 0x09 && r != 0x0A && r != 0x0D)
break;
getch(l);
}
r = getch(l);
if(r == ']' && l->canjmp)
longjmp(l->jmp, 1);
l->canjmp = 0;
if(r == 0 || r == '{' || r == '[' || r == ']' || r == '}' || r == ':' || r == ','){
l->t = r;
return 0;
}
if(r >= 0x80 || isalpha(r)){
t = l->buf;
for(;;){
t += runetochar(t, &r);
if(t >= l->buf + sizeof(l->buf)){
werrstr("json: literal too long");
return -1;
}
r = peekch(l);
if(r < 0x80 && !isalpha(r))
break;
getch(l);
}
*t = 0;
if(strcmp(l->buf, "true") == 0)
l->t = TTRUE;
else if(strcmp(l->buf, "false") == 0)
l->t = TFALSE;
else if(strcmp(l->buf, "null") == 0)
l->t = TNULL;
else{
werrstr("json: invalid literal");
return -1;
}
return 0;
}
if(isdigit(r) || r == '-'){
l->n = strtod(l->s-1, &l->s);
l->t = TNUM;
return 0;
}
if(r == '"'){
t = l->buf;
for(;;){
r = getch(l);
if(r == '"')
break;
if(r < ' '){
werrstr("json: invalid char in string %x", r);
return -1;
}
if(r == '\\'){
r = getch(l);
switch(r){
case 'n':
r = '\n';
break;
case 'r':
r = '\r';
break;
case 't':
r = '\t';
break;
case 'f':
r = '\f';
break;
case 'b':
r = '\b';
break;
case '"': case '/': case '\\':
break;
default:
werrstr("json: invalid escape sequence \\%C", r);
return -1;
}
}
t += runetochar(t, &r);
if(t >= l->buf + sizeof(l->buf)){
werrstr("json: string too long");
return -1;
}
}
*t = 0;
l->t = TSTRING;
return 0;
}
werrstr("json: invalid char %C", peekch(l));
return -1;
}
static JSON*
jsonobj(Lex *l)
{
JSON *j;
JSONEl *e;
JSONEl **ln;
int obj;
j = mallocz(sizeof(*j), 1);
if(j == nil)
return nil;
if(lex(l) < 0){
error:
free(j);
return nil;
}
switch(l->t){
case TEOF:
werrstr("json: unexpected eof");
goto error;
case TNULL:
j->t = JSONNull;
break;
case TTRUE:
j->t = JSONBool;
j->n = 1;
break;
case TFALSE:
j->t = JSONBool;
j->n = 0;
break;
case TSTRING:
j->t = JSONString;
j->s = strdup(l->buf);
if(j->s == nil)
goto error;
break;
case TNUM:
j->t = JSONNumber;
j->n = l->n;
break;
case '{':
case '[':
obj = l->t == '{';
ln = &j->first;
e = nil;
if(obj){
j->t = JSONObject;
if(lex(l) < 0)
goto abort;
if(l->t == '}')
return j;
goto firstobj;
}else{
j->t = JSONArray;
l->canjmp = 1;
if(setjmp(l->jmp) > 0){
free(e);
return j;
}
}
for(;;){
if(obj){
if(lex(l) < 0)
goto abort;
firstobj:
if(l->t != TSTRING){
werrstr("json: syntax error, not string");
goto abort;
}
e = mallocz(sizeof(*e), 1);
if(e == nil)
goto abort;
e->name = strdup(l->buf);
if(e->name == nil || lex(l) < 0){
free(e);
goto abort;
}
if(l->t != ':'){
werrstr("json: syntax error, not colon");
free(e);
goto abort;
}
}else{
e = mallocz(sizeof(*e), 1);
if(e == nil)
goto abort;
}
e->val = jsonobj(l);
if(e->val == nil){
free(e);
goto abort;
}
*ln = e;
ln = &e->next;
if(lex(l) < 0)
goto abort;
if(l->t == (obj ? '}' : ']'))
break;
if(l->t != ','){
werrstr("json: syntax error, neither comma nor ending paren");
goto abort;
}
}
break;
abort:
jsonfree(j);
return nil;
case ']': case '}': case ',': case ':':
werrstr("json: unexpected %C", l->t);
goto error;
default:
werrstr("json: the front fell off");
goto error;
}
return j;
}
JSON*
jsonparse(char *s)
{
Lex l;
memset(&l, 0, sizeof(l));
l.s = s;
return jsonobj(&l);
}
void
jsonfree(JSON *j)
{
JSONEl *e, *f;
switch(j->t){
case JSONString:
if(j->s)
free(j->s);
break;
case JSONArray: case JSONObject:
for(e = j->first; e != nil; e = f){
if(e->name)
free(e->name);
jsonfree(e->val);
f = e->next;
free(e);
}
}
free(j);
}
JSON *
jsonbyname(JSON *j, char *n)
{
JSONEl *e;
if(j->t != JSONObject){
werrstr("not an object");
return nil;
}
for(e = j->first; e != nil; e = e->next)
if(strcmp(e->name, n) == 0)
return e->val;
werrstr("key '%s' not found", n);
return nil;
}
char *
jsonstr(JSON *j)
{
if(j == nil)
return nil;
if(j->t != JSONString){
werrstr("not a string");
return nil;
}
return j->s;
}

32
sys/src/cmd/btc/json.h Normal file
View file

@ -0,0 +1,32 @@
typedef struct JSONEl JSONEl;
typedef struct JSON JSON;
enum {
JSONNull,
JSONBool,
JSONNumber,
JSONString,
JSONArray,
JSONObject,
};
struct JSONEl {
char *name;
JSON *val;
JSONEl *next;
};
struct JSON
{
int t;
union {
double n;
char *s;
JSONEl *first;
};
};
JSON* jsonparse(char *);
void jsonfree(JSON *);
JSON* jsonbyname(JSON *, char *);
char* jsonstr(JSON *);

17
sys/src/cmd/btc/mkfile Normal file
View file

@ -0,0 +1,17 @@
</$objtype/mkfile
TARG=httpfs sign
BIN=/$objtype/bin/btc
OFILES=\
json.$O\
HFILES=\
dat.h\
default:V: all
</sys/src/cmd/mkmany
$O.httpfs: fs.$O

412
sys/src/cmd/btc/sign.c Normal file
View file

@ -0,0 +1,412 @@
#include <u.h>
#include <libc.h>
#include <bio.h>
#include <mp.h>
#include <ctype.h>
#include <libsec.h>
#include <auth.h>
typedef struct TxIn TxIn;
typedef struct TxOut TxOut;
typedef struct Sig Sig;
typedef struct Word Word;
int afd;
AuthRpc *rpc;
struct Word {
char *name;
int val;
} words[];
struct Sig {
char *priv;
int loc;
Sig *n;
};
struct TxIn {
uchar prev[36];
int scoldlen, sclen;
uchar scold[10000];
uchar sc[10000];
Sig *sig;
};
struct TxOut {
uvlong val;
int sclen;
uchar sc[10000];
};
Biobuf *bp;
int nin, nout;
TxIn *in[0xFD];
TxOut *out[0xFD];
uchar buf[65536];
void
varenc(uint i, uchar **b)
{
if(i < 0xfd)
*(*b)++ = i;
else if(i <= 0xffff){
*(*b)++ = 0xfd;
*(*b)++ = i;
*(*b)++ = i >> 8;
}else{
*(*b)++ = 0xfe;
*(*b)++ = i;
*(*b)++ = i >> 8;
*(*b)++ = i >> 16;
*(*b)++ = i >> 24;
}
}
int
hexdec(char *c, uchar *u, int n)
{
int i, v;
char *b;
static char *hexdig = "0123456789abcdef";
memset(u, 0, n);
for(i = 0; i < 2 * n; i++){
b = strchr(hexdig, c[i]);
if(b == nil)
return -1;
v = b - hexdig;
if(i & 1)
u[i>>1] |= v;
else
u[i>>1] |= v << 4;
}
return 0;
}
void
pushdat(uchar **scr, uchar *d, int n)
{
if(n <= 0x4b)
*(*scr)++ = n;
else if(n <= 0xff){
*(*scr)++ = 0x4c;
*(*scr)++ = n;
}else if(n <= 0xffff){
*(*scr)++ = 0x4d;
*(*scr)++ = n;
*(*scr)++ = n >> 8;
}else{
*(*scr)++ = 0x4e;
*(*scr)++ = n;
*(*scr)++ = n >> 8;
*(*scr)++ = n >> 16;
*(*scr)++ = n >> 24;
}
memcpy(*scr, d, n);
*scr += n;
}
void
doscript(char **args, int n, uchar *script, int *len, TxIn *ti)
{
int i, k;
Word *w;
uchar *scr;
uchar *b;
char *s;
Sig *si;
scr = script;
for(i = 0; i < n; i++){
for(w = words; w->name; w++)
if(strcmp(w->name, args[i]) == 0){
*scr++ = w->val;
goto next;
}
if(strncmp(args[i], "sig(", 4) == 0){
if(in == nil)
sysfatal("sig in out script");
si = malloc(sizeof(*si));
args[i][strlen(args[i])-1] = 0;
si->priv = strdup(args[i] + 4);
si->loc = scr - script;
si->n = ti->sig;
ti->sig = si;
continue;
}
if(strncmp(args[i], "h160(", 5) == 0){
b = mallocz(25, 1);
args[i][strlen(args[i])-1] = 0;
base58dec(args[i] + 5, b, 25);
pushdat(&scr, b+1, 20);
free(b);
continue;
}
if(args[i][0] == '('){
k = strtol(args[i] + 1, &s, 0);
b = mallocz(k, 1);
base58dec(s+1, b, k);
pushdat(&scr, b, k);
free(b);
continue;
}
sysfatal("invalid word %s", args[i]);
next: ;
}
*len = scr - script;
}
int
serialize(uchar *buf, int sig)
{
uchar *s;
TxIn *ti;
TxOut *to;
int i;
s = buf;
*s++ = 1;
*s++ = 0;
*s++ = 0;
*s++ = 0;
*s++ = nin;
for(i = 0; i < nin; i++){
ti = in[i];
memcpy(s, ti->prev, 36);
s += 36;
if(sig == -1){
varenc(ti->sclen, &s);
memcpy(s, ti->sc, ti->sclen);
s += ti->sclen;
}
if(sig == i){
memcpy(s, ti->scold, ti->scoldlen);
s += ti->scoldlen;
}
*s++ = 0xff;
*s++ = 0xff;
*s++ = 0xff;
*s++ = 0xff;
}
*s++ = nout;
for(i = 0; i < nout; i++){
to = out[i];
*s++ = to->val;
*s++ = to->val >> 8;
*s++ = to->val >> 16;
*s++ = to->val >> 24;
*s++ = to->val >> 32;
*s++ = to->val >> 40;
*s++ = to->val >> 48;
*s++ = to->val >> 56;
varenc(to->sclen, &s);
memcpy(s, to->sc, to->sclen);
s += to->sclen;
}
*s++ = 0;
*s++ = 0;
*s++ = 0;
*s++ = 0;
if(sig != -1){
*s++ = 0;
*s++ = 0;
*s++ = 0;
*s++ = 0;
}
return s - buf;
}
void
sign(uchar *hash, char *priv, uchar *tar, uint *n)
{
char buf[512];
int rc;
again:
sprint(buf, "proto=ecdsa role=client key=%s", priv);
rc = auth_rpc(rpc, "start", buf, strlen(buf));
if(rc == ARneedkey || rc == ARbadkey){
rerrstr(buf, sizeof buf);
if(auth_getkey(buf + 8) < 0)
sysfatal("auth_getkey: %r");
goto again;
}
if(rc != ARok)
sysfatal("factotum start: %r");
if(auth_rpc(rpc, "write", hash, 32) != ARok)
sysfatal("factotum write: %r");
if(auth_rpc(rpc, "read", "", 0) != ARok)
sysfatal("factotum read: %r");
memcpy(tar, rpc->arg, *n = rpc->narg);
}
void
main()
{
char *line;
int linenum;
uint i, n;
char *args[256];
TxOut *to;
TxIn *ti;
Sig *si;
uchar hash[32];
uchar sig[100];
afd = open("/mnt/factotum/rpc", ORDWR);
if(afd < 0)
sysfatal("open: %r");
rpc = auth_allocrpc(afd);
bp = malloc(sizeof(*bp));
Binit(bp, 0, OREAD);
linenum = 0;
for(;;){
line = Brdstr(bp, '\n', 1);
linenum++;
if(strcmp(line, "-") == 0)
break;
if(++nin >= 0xFD)
sysfatal("too many inputs");
ti = malloc(sizeof(*ti));
in[nin-1] = ti;
if(tokenize(line, args, nelem(args)) != 2)
sysfatal("line %d: invalid data", linenum);
hexdec(args[0], ti->prev, 32);
i = atoi(args[1]);
ti->prev[32] = i;
ti->prev[33] = i >> 8;
ti->prev[34] = i >> 16;
ti->prev[35] = i >> 24;
line = Brdstr(bp, '\n', 1);
linenum++;
i = tokenize(line, args, nelem(args));
doscript(args, i, ti->scold, &ti->scoldlen, nil);
line = Brdstr(bp, '\n', 1);
linenum++;
i = tokenize(line, args, nelem(args));
doscript(args, i, ti->sc, &ti->sclen, ti);
}
for(;;){
line = Brdstr(bp, '\n', 1);
if(line == nil)
break;
linenum++;
if(++nout >= 0xFD)
sysfatal("too many outputs");
to = malloc(sizeof(*to));
out[nout-1] = to;
to->val = atoll(line);
line = Brdstr(bp, '\n', 1);
linenum++;
i = tokenize(line, args, nelem(args));
doscript(args, i, to->sc, &to->sclen, nil);
}
for(i = 0; i < nin; i++){
ti = in[i];
if(ti->sig == nil)
continue;
n = serialize(buf, i);
sha2_256(buf, n, hash, nil);
sha2_256(hash, 32, hash, nil);
for(si = ti->sig; si != nil; si = si->n){
sign(hash, ti->sig->priv, sig + 1, &n);
print("%d\n", n);
sig[0] = n++;
memmove(ti->sc + si->loc + n, ti->sc + si->loc, ti->sclen - si->loc);
memmove(ti->sc + si->loc, sig, n);
ti->sclen += n;
}
}
n = serialize(buf, -1);
for(i = 0; i < n; i++){
print("%.2x", buf[i]);
if((i%4)==3)
print(" ");
if((i%32)==31)
print("\n");
}
if((i%16)!=0)
print("\n");
}
Word words[] = {
{"nop", 97},
{"if", 99},
{"notif", 100},
{"else", 103},
{"endif", 104},
{"verify", 105},
{"return", 106},
{"toaltstack", 107},
{"fromaltstack", 108},
{"2drop", 109},
{"2dup", 110},
{"3dup", 111},
{"2over", 112},
{"2rot", 113},
{"2swap", 114},
{"ifdup", 115},
{"depth", 116},
{"drop", 117},
{"dup", 118},
{"nip", 119},
{"over", 120},
{"pick", 121},
{"roll", 122},
{"rot", 123},
{"swap", 124},
{"tuck", 125},
{"cat", 126},
{"substr", 127},
{"left", 128},
{"right", 129},
{"size", 130},
{"invert", 131},
{"and", 132},
{"or", 133},
{"xor", 134},
{"equal", 135},
{"equalverify", 136},
{"1add", 139},
{"1sub", 140},
{"2mul", 141},
{"2div", 142},
{"negate", 143},
{"abs", 144},
{"not", 145},
{"0notequal", 146},
{"add", 147},
{"sub", 148},
{"mul", 149},
{"div", 150},
{"mod", 151},
{"lshift", 152},
{"rshift", 153},
{"booland", 154},
{"boolor", 155},
{"numequal", 156},
{"numequalverify", 157},
{"numnotequal", 158},
{"lessthan", 159},
{"greaterthan", 160},
{"lessthanorequal", 161},
{"greaterthanorequal", 162},
{"min", 163},
{"max", 164},
{"within", 165},
{"ripemd160", 166},
{"sha1", 167},
{"sha256", 168},
{"hash160", 169},
{"hash256", 170},
{"codeseparator", 171},
{"checksig", 172},
{"checksigverify", 173},
{"checkmultisig", 174},
{"checkmultisigverify", 175},
{nil, 0},
};