From fd6d954e95e016a78001e9bc12c4646ba8183e12 Mon Sep 17 00:00:00 2001
From: Mike Meffie <mmeffie@sinenomine.net>
Date: Sun, 15 Mar 2009 18:19:15 +0000
Subject: [PATCH] butc-xbsa-buffersize-20090315

LICENSE IPL10
FIXES 124425

restrict buffer size to allow for header space
---
 src/butc/dump.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/butc/dump.c b/src/butc/dump.c
index e1aff6fb65..5c08b67f07 100644
--- a/src/butc/dump.c
+++ b/src/butc/dump.c
@@ -358,6 +358,13 @@ dumpVolume(struct tc_dumpDesc * curDump, struct dumpRock * dparamsPtr)
 		}
 	    }
 
+#ifdef xbsa
+	    /* Set aside space for the trailing volume header when using large buffers. */
+	    if (XBSAMAXBUFFER < toread + sizeof(hostVolumeHeader)) {
+		toread = XBSAMAXBUFFER - sizeof(hostVolumeHeader);
+	    }
+#endif
+
 	    /* Read some volume data. */
 	    if (fragmentvolume) {
 		bytesread = 0;