int
vtsrvhello(VtConn *z)
{
VtFcall tx, rx;
Packet *p;
if((p = vtrecv(z)) == nil)
return -1;
if(vtfcallunpack(&tx, p) < 0){
packetfree(p);
return -1;
}
packetfree(p);
if(tx.msgtype != VtThello){
vtfcallclear(&tx);
werrstr("bad packet type %d; want Thello %d", tx.msgtype, VtThello);
return -1;
}
if(tx.tag != 0){
vtfcallclear(&tx);
werrstr("bad tag in hello");
return -1;
}
if(strcmp(tx.version, z->version) != 0){
vtfcallclear(&tx);
werrstr("bad version in hello");
return -1;
}
vtfree(z->uid);
z->uid = tx.uid;
tx.uid = nil;
vtfcallclear(&tx);
memset(&rx, 0, sizeof rx);
rx.msgtype = VtRhello;
rx.tag = tx.tag;
rx.sid = "anonymous";
if((p = vtfcallpack(&rx)) == nil)
return -1;
if(vtsend(z, p) < 0)
return -1;
return 0;
}
static void
connproc(void *v)
{
VtSconn *sc;
VtConn *c;
Packet *p;
VtReq *r;
int fd;
static int first=1;
if(first && chattyventi){
first=0;
fmtinstall('F', vtfcallfmt);
}
r = nil;
sc = v;
sc->c = nil;
if(0) fprint(2, "new call %s on %d\n", sc->dir, sc->ctl);
fd = accept(sc->ctl, sc->dir);
close(sc->ctl);
if(fd < 0){
fprint(2, "accept %s: %r\n", sc->dir);
goto out;
}
c = vtconn(fd, fd);
sc->c = c;
if(vtversion(c) < 0){
fprint(2, "vtversion %s: %r\n", sc->dir);
goto out;
}
if(vtsrvhello(c) < 0){
fprint(2, "vtsrvhello %s: %r\n", sc->dir);
goto out;
}
if(0) fprint(2, "new proc %s\n", sc->dir);
proccreate(vtsendproc, c, STACK);
qlock(&c->lk);
while(!c->writeq)
rsleep(&c->rpcfork);
qunlock(&c->lk);
while((p = vtrecv(c)) != nil){
r = vtmallocz(sizeof(VtReq));
if(vtfcallunpack(&r->tx, p) < 0){
vtlog(VtServerLog, "<font size=-1>%T %s:</font> recv bad packet %p: %r<br>\n", c->addr, p);
fprint(2, "bad packet on %s: %r\n", sc->dir);
packetfree(p);
continue;
}
vtlog(VtServerLog, "<font size=-1>%T %s:</font> recv packet %p (%F)<br>\n", c->addr, p, &r->tx);
if(chattyventi)
fprint(2, "%s <- %F\n", argv0, &r->tx);
packetfree(p);
if(r->tx.msgtype == VtTgoodbye)
break;
r->rx.tag = r->tx.tag;
r->sc = sc;
scincref(sc);
if(_vtqsend(sc->srv->q, r) < 0){
scdecref(sc);
fprint(2, "hungup queue\n");
break;
}
r = nil;
}
if(0) fprint(2, "eof on %s\n", sc->dir);
out:
if(r){
vtfcallclear(&r->tx);
vtfree(r);
}
if(0) fprint(2, "freed %s\n", sc->dir);
scdecref(sc);
return;
}
