sfdisk: allow partitioning drives of over 2^31 sectors.

sfdisk would incorrectly complain that there was no room when partitioning
a drive over 2^31 sectors in size.

Signed-off-by: LaMont Jones <lamont@mmjgroup.com>

diff --git a/fdisk/sfdisk.c b/fdisk/sfdisk.c
index 99e165efaaccbee220b5452e9251ccaaf7f2431e..a3b66174f0fabcefc1f569ce1de470c97fa70b20 100644 (file)
--- a/fdisk/sfdisk.c
+++ b/fdisk/sfdisk.c
@@ -1927,11 +1927,12 @@ compute_start_sect(struct part_desc *p, struct part_desc *ep) {
       delta = 0;
 
     if (delta < 0) {
+       unsigned long old_size = p->size;
        p->start -= delta;
        p->size += delta;
        if (is_extended(p->p.sys_type) && boxes == ONESECTOR)
          p->size = inc;
-       else if ((int)(p->size) <= 0) {
+       else if (old_size <= -delta) {
            warn(_("no room for partition descriptor\n"));
            return 0;
        }