From 15e46da83c62468aa2a7f2396ad9280f79a30e99 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Fri, 12 Mar 2004 13:54:46 +0000
Subject: [PATCH] Seek to end of an empty fbmem stream needs a special
 exception.

---
 lib/fb-mem.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/fb-mem.c b/lib/fb-mem.c
index 2b0d7e94..daa80733 100644
--- a/lib/fb-mem.c
+++ b/lib/fb-mem.c
@@ -120,6 +120,14 @@ fbmem_seek(struct fastbuf *f, sh_off_t pos, int whence)
 	  return;
 	}
     }
+  if (!m->first && !pos)
+    {
+      /* Seeking to offset 0 in an empty file needs an exception */
+      f->buffer = f->bptr = f->bufend = NULL;
+      f->pos = 0;
+      FB_MEM(f)->block = NULL;
+      return;
+    }
   die("fbmem_seek to invalid offset");
 }
 
-- 
2.39.2