diff -r 6a79856cb8f5 -r 45dbd7582a5a libpurple/protocols/oscar/peer_proxy.c
--- a/libpurple/protocols/oscar/peer_proxy.c	Wed Oct 02 17:58:38 2019 -0400
+++ b/libpurple/protocols/oscar/peer_proxy.c	Wed Oct 02 18:01:33 2019 -0400
@@ -270,8 +270,7 @@
 	}
 
 	/* If this frame has a payload then attempt to read it */
-	if (frame->payload.len - frame->payload.offset > 0)
-	{
+	if (frame->payload.offset < frame->payload.len) {
 		/* Read data into the temporary buffer until it is complete */
 		read = recv(conn->fd,
 					&frame->payload.data[frame->payload.offset],