DEVEL15-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 e1aff6fb65f07ee23a2eef9354e1815c47d7f536..5c08b67f076487a622833b00ea5ac8f9957f2590 100644 (file)
--- 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;