Fix offset to use LOFF_T in a couple places.

The BODY->hdr_offset was incorrectly of type long, which could result
in corrupted >2gb mbox files in some circumstances.

The uses in mh_rewrite_message() are not as serious, but they should
still be of type LOFF_T.

I found both of these fixes in a patch file,
bug-676388-largefile.patch, in the openSUSE mutt src rpm.  It looks
like Harald Koenig was the original author of a larger patch in that
openSUSE ticket, which was reduced over time as fixes were made to
Mutt.

Note that patch file also incorrectly adjusted old_hdr_lines in mh.c.
I've removed that part, as HEADER->lines is type int.

Unfortunately, the BODY->hdr_offset type change will result in a
header cache change (i.e. invalidation).  I'm not enthused about doing
that during a stable release, but the change is important enough to
merit it.

1 files changed, 1 insertions, 1 deletions

diff --git a/mutt.h b/mutt.h
index 8f45e67f..b4f448f2 100644
--- a/mutt.h
+++ b/mutt.h
@@ -781,7 +781,7 @@ typedef struct body
   PARAMETER *parameter;         /* parameters of the content-type */
   char *description;            /* content-description */
   char *form_name;		/* Content-Disposition form-data name param */
-  long hdr_offset;              /* offset in stream where the headers begin.
+  LOFF_T hdr_offset;            /* offset in stream where the headers begin.
 				 * this info is used when invoking metamail,
 				 * where we need to send the headers of the
 				 * attachment