Fixed df.c so that nfs volumes will display properly (fixing bug #1113).

Problem was 512/1024 = 0 if you use longs, so I cast KILOBYTE to a double, then
cast the result back to an int after the math is done, letting C's type
promotion do its magic for the rest.
 -Erik


git-svn-id: svn://busybox.net/trunk/busybox@2032 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 10 insertions, 6 deletions

diff --git a/df.c b/df.c
index 776fceb28..21a1dbb31 100644
--- a/df.c
+++ b/df.c
@@ -74,18 +74,22 @@ static int do_df(char *device, const char *mount_point)
                                 base = 0;
                 }
                 printf("%-20s %9s ", device,
-                           make_human_readable_str(s.f_blocks * (s.f_bsize/KILOBYTE), base));
+                           make_human_readable_str((unsigned long)(s.f_blocks * 
+                                           (s.f_bsize/(double)KILOBYTE)), base));
                 printf("%9s ",
-                           make_human_readable_str((s.f_blocks - s.f_bfree) * (s.f_bsize/KILOBYTE), base));
+                           make_human_readable_str((unsigned long)(
+                                           (s.f_blocks - s.f_bfree) * 
+                                           (s.f_bsize/(double)KILOBYTE)), base));
                 printf("%9s %3ld%% %s\n",
-                           make_human_readable_str(s.f_bavail * (s.f_bsize/KILOBYTE), base),
+                           make_human_readable_str((unsigned long)(s.f_bavail * 
+                                           (s.f_bsize/(double)KILOBYTE)), base),
                            blocks_percent_used, mount_point);
 #else
                 printf("%-20s %9ld %9ld %9ld %3ld%% %s\n",
                                 device,
-                                (long) (s.f_blocks * (s.f_bsize / KILOBYTE)),
-                                (long) ((s.f_blocks - s.f_bfree) * (s.f_bsize / KILOBYTE)),
-                                (long) (s.f_bavail * (s.f_bsize / KILOBYTE)),
+                                (long) (s.f_blocks * (s.f_bsize / (double)KILOBYTE)),
+                                (long) ((s.f_blocks - s.f_bfree)*(s.f_bsize/(double)KILOBYTE)),
+                                (long) (s.f_bavail * (s.f_bsize / (double)KILOBYTE)),
                                 blocks_percent_used, mount_point);
 #endif
         }