Fix handling of timeouts vs. errors... they're not the same, so don't treat

them that way.  Also, ensure there's a timeout on the second byte of the
packet header since we toss out the first byte if the second byte times out
(they should pretty much always be in the same packet, but why take the risk?)

exec/load/binkp.js

@@ -591,7 +591,7 @@ BinkP.prototype.accept = function(sock, auth_cb)
 		log(LOG_DEBUG, "Initializing crypt keys.");
 		this.out_keys = [0, 0, 0];
 		this.in_keys = [0, 0, 0];
-    	this.crypt.init_keys(this.in_keys, pwd);
+		this.crypt.init_keys(this.in_keys, pwd);
 		this.crypt.init_keys(this.out_keys,  "-");
 		for (i=0; i<pwd.length; i++)
 			this.crypt.update_keys(this.out_keys, pwd[i]);
@@ -947,20 +947,40 @@ BinkP.prototype.recvFrame = function(timeout)
 
 	if (this.partialFrame === undefined) {
 		ret = new this.Frame();
-		buf = this.sock.recv(1, timeout);
-		if (buf === null || buf.length !== 1) {
-			log(LOG_INFO, "Error in recv() timeout or disconnect");
+		i = this.sock.recv(1, timeout);
+		if (i === null) {
+			log(LOG_INFO, "Error in recv() of first byte of packet header");
 			this.sock.close();
 			this.sock = undefined;
 			return undefined;
 		}
-		buf += this.sock.recv(1, timeout);
-		if (buf.length !== 2) {
-			log(LOG_ERROR, "Remote disconnected or timed out before sending second byte of packet header!");
+		if (i.length != 1) {
+			if (timeout) {
+				log(LOG_WARNING, "Timed out receiving first byte of packet header!");
+				this.sock.close();
+				this.sock = undefined;
+				return undefined;
+			}
+			return null;
+		}
+		buf = i;
+		i = this.sock.recv(1, this.timeout);
+		if (i === null) {
+			log(LOG_INFO, "Error in recv() of second byte of packet header");
 			this.sock.close();
 			this.sock = undefined;
 			return undefined;
 		}
+		if (i.length != 1) {
+			if (timeout) {
+				log(LOG_WARNING, "Timed out receiving second byte of packet header!");
+				this.sock.close();
+				this.sock = undefined;
+				return undefined;
+			}
+			return null;
+		}
+		buf += i;
 		buf = this.recv_buf(buf);
 		ret.length = (ascii(buf[0]) << 8) | ascii(buf[1]);
 		ret.is_cmd = (ret.length & 0x8000) ? true : false;
@@ -971,12 +991,20 @@ BinkP.prototype.recvFrame = function(timeout)
 		ret = this.partialFrame;
 
 	i = this.recv_buf(this.sock.recv(ret.length - ret.data.length));
-	if (i == null || i.length == 0) {
-		log(LOG_ERROR, "Remote disconnected or timed out while receiving packet data!");
+	if (i == null) {
+		log(LOG_INFO, "Error in recv() of packet data");
 		this.sock.close();
 		this.sock = undefined;
 		return undefined;
 	}
+	if (i.length == 0) {
+		if (timeout) {
+			log(LOG_ERROR, "Timed out receiving packet data!");
+			this.sock.close();
+			this.sock = undefined;
+			return undefined;
+		}
+	}
 	ret.data += i;
 
 	if (ret.data.length < ret.length)