char*
vncrdstring(Vnc *v)
{
ulong len;
char *s;
len = vncrdlong(v);
s = malloc(len+1);
assert(s != nil);
vncrdbytes(v, s, len);
s[len] = '\0';
return s;
}
int
vncauth(Vnc *v, char *keypattern)
{
char pw[128], *reason;
uint8_t chal[VncChalLen];
uint32_t auth;
char *p, *server;
if(keypattern == nil)
keypattern = "";
auth = vncrdlong(v);
switch(auth){
default:
werrstr("unknown auth type 0x%lux", auth);
if(verbose)
fprint(2, "unknown auth type 0x%lux", auth);
return -1;
case AFailed:
reason = vncrdstring(v);
werrstr("%s", reason);
if(verbose)
fprint(2, "auth failed: %s\n", reason);
return -1;
case ANoAuth:
if(verbose)
fprint(2, "no auth needed");
break;
case AVncAuth:
vncrdbytes(v, chal, VncChalLen);
server = strdup(serveraddr);
p = strrchr(server, ':');
if(p)
*p = 0;
if(auth_respond(chal, VncChalLen, nil, 0, chal, VncChalLen, auth_getkey,
"proto=vnc role=client server=%s %s", server, keypattern) != VncChalLen){
/* BUG This is for drawterm users who don't start their own factotums */
readln("password: "******"unknown server response 0x%lux", auth);
return -1;
case VncAuthFailed:
werrstr("server says authentication failed");
return -1;
case VncAuthTooMany:
werrstr("server says too many tries");
return -1;
case VncAuthOK:
break;
}
break;
}
return 0;
}
