[Bug 346] New: Fix for xfs_fsr crash on DEC Alpha

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http://oss.sgi.com/bugzilla/show_bug.cgi?id=346

           Summary: Fix for xfs_fsr crash on DEC Alpha
           Product: Linux XFS
           Version: 1.3.x
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: Medium
         Component: xfsdump
        AssignedTo: xfs-master@xxxxxxxxxxx
        ReportedBy: jan-jaap.vanderheijden@xxxxxxxxxxxxx


In xfs_fsr.c, the function xfs_bulkstat() takes a size_t 
*ocount, but writes only to the lower 32bits: bulkreq.ocount =  (__s32 *)ocount;

When size_t is 64bits (such as on the Alpha), the upper 32bits will be undefined
. When fsrfs() passes an uninitialized variable to it, it crashes.

This is a fix against xfsdump-2.2.21:

--- xfsdump-2.2.21/fsr/xfs_fsr.c.orig   2004-07-15 12:35:29.000000000 +0200
+++ xfsdump-2.2.21/fsr/xfs_fsr.c        2004-07-15 13:19:43.000000000 +0200
@@ -178,6 +178,7 @@
 {
     xfs_fsop_bulkreq_t  bulkreq;
     
+    *ocount = 0;
     bulkreq.lastip = lastip;
     bulkreq.icount = icount;
     bulkreq.ubuffer = ubuffer;



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