From: Mike Meffie <mmeffie@sinenomine.net>
Date: Sun, 15 Mar 2009 18:19:37 +0000 (+0000)
Subject: STABLE14-butc-xbsa-buffersize-20090315
X-Git-Tag: openafs-stable-1_4_9pre1~30
X-Git-Url: https://git.michaelhowe.org/gitweb/?a=commitdiff_plain;h=027e96822183ecf99c2a03a1c455bc5784ea38ab;p=packages%2Fo%2Fopenafs.git

STABLE14-butc-xbsa-buffersize-20090315

LICENSE IPL10
FIXES 124425

restrict buffer size to allow for header space


(cherry picked from commit fd6d954e95e016a78001e9bc12c4646ba8183e12)
---

diff --git a/src/butc/dump.c b/src/butc/dump.c
index e1aff6fb6..5c08b67f0 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;