From: Milan Rusek <mrusek@ucw.cz>
Date: Mon, 12 Feb 2024 14:26:44 +0000 (+0100)
Subject: FBSocket: Fix possible crashes when switching read/write with bflush().
X-Git-Tag: v6.5.16~2
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=868c287a45a668a877c950dc13c9effaa055ccd2;p=libucw.git

FBSocket: Fix possible crashes when switching read/write with bflush().
---

diff --git a/ucw/fb-socket.c b/ucw/fb-socket.c
index 19f27bd5..7ae528cd 100644
--- a/ucw/fb-socket.c
+++ b/ucw/fb-socket.c
@@ -73,9 +73,9 @@ fbs_spout(struct fastbuf *f)
   };
 
   int l = f->bptr - f->bstop;
-  f->bptr = f->bstop;
-  f->pos += l;
   char *buf = f->bstop;
+  f->pos += l;
+  f->bptr = f->bstop = f->buffer;
 
   while (l)
     {