int
vncsrvauth(Vnc *v)
{
Chalstate *c;
AuthInfo *ai;
if((c = auth_challenge("proto=vnc role=server user=%q", getuser()))==nil)
sysfatal("vncchal: %r");
if(c->nchal != VncChalLen)
sysfatal("vncchal got %d bytes wanted %d", c->nchal, VncChalLen);
vncwrlong(v, AVncAuth);
vncwrbytes(v, c->chal, VncChalLen);
vncflush(v);
vncrdbytes(v, c->chal, VncChalLen);
c->resp = c->chal;
c->nresp = VncChalLen;
ai = auth_response(c);
auth_freechal(c);
if(ai == nil){
fprint(2, "vnc auth failed: server factotum: %r\n");
vncwrlong(v, VncAuthFailed);
vncflush(v);
return -1;
}
auth_freeAI(ai);
vncwrlong(v, VncAuthOK);
vncflush(v);
return 0;
}
void
vncwrstring(Vnc *v, char *s)
{
ulong len;
len = strlen(s);
vncwrlong(v, len);
vncwrbytes(v, s, len);
}
void
checksnarf(Vnc *v)
{
Dir *dir;
char *snarf;
int len;
if(snarffd < 0) {
snarffd = open("/dev/snarf", OREAD);
if(snarffd < 0)
sysfatal("can't open /dev/snarf: %r");
}
for(;;) {
sleep(1000);
dir = dirstat("/dev/snarf");
if(dir == nil) /* this happens under old drawterm */
continue;
if(dir->qid.vers > snarfvers) {
snarf = getsnarf(&len);
vnclock(v);
vncwrchar(v, MCCut);
vncwrbytes(v, "pad", 3);
vncwrlong(v, len);
vncwrbytes(v, snarf, len);
vncflush(v);
vncunlock(v);
free(snarf);
snarfvers = dir->qid.vers;
}
free(dir);
}
}
