shithub: mq

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mq: clamp response to request size

--- a/src/mq.c

+++ b/src/mq.c

@@ -191,11 +191,15 @@

 void

 respondmessage(Req *r)

 {

+	int n;

 	Client *c = r->fid->aux;

 	Write *w = c->cursor;

-

-	r->ofcall.count = w->count;

-	memmove(r->ofcall.data, w->data, w->count);

+	

+	n = w->count;

+	if(n > r->ifcall.count)

+		n = r->ifcall.count;

+	r->ofcall.count = n;

+	memmove(r->ofcall.data, w->data, n);

 	respond(r, nil);

 }