Makefile: Split definitions for SGI4,5,6.

[kai/samba.git] / source3 / smbd / server.c

diff --git a/source3/smbd/server.c b/source3/smbd/server.c
index 290181fb9ee04f7b198b905fea72fa050d524d72..2b906a7641715d1c37bf5305e3ac703378eb65f0 100644 (file)
--- a/source3/smbd/server.c
+++ b/source3/smbd/server.c
@@ -711,7 +711,15 @@ int disk_free(char *path,int *bsize,int *dfree,int *dsize)
                            dfree_retval : dfreeq_retval ;
           /* maybe dfree and dfreeq are calculated using different bsizes 
              so convert dfree from bsize into bsizeq */
-          *dfree = ((*dfree) * (*bsize)) / (bsizeq);
+          /* avoid overflows due to multiplication, so do not:
+                *dfree = ((*dfree) * (*bsize)) / (bsizeq); 
+             bsize and bsizeq are powers of 2 so its better to
+             to divide them getting a multiplication or division factor
+             for dfree. Rene Nieuwenhuizen (07-10-1997) */
+          if (*bsize >= bsizeq) 
+            *dfree = *dfree * (*bsize / bsizeq);
+          else 
+            *dfree = *dfree / (bsizeq / *bsize);
           *dfree = ( *dfree < dfreeq ) ? *dfree : dfreeq ; 
           *bsize = bsizeq;
           *dsize = dsizeq;
@@ -801,7 +809,15 @@ if ((*bsize) < 512 || (*bsize)>0xFFFF) *bsize = 1024;
                        dfree_retval : dfreeq_retval ;
       /* maybe dfree and dfreeq are calculated using different bsizes 
          so convert dfree from bsize into bsizeq */
-      *dfree = ((*dfree) * (*bsize)) / (bsizeq);
+      /* avoid overflows due to multiplication, so do not:
+              *dfree = ((*dfree) * (*bsize)) / (bsizeq); 
+       bsize and bsizeq are powers of 2 so its better to
+       to divide them getting a multiplication or division factor
+       for dfree. Rene Nieuwenhuizen (07-10-1997) */
+      if (*bsize >= bsizeq)
+        *dfree = *dfree * (*bsize / bsizeq);
+      else
+        *dfree = *dfree / (bsizeq / *bsize);
       *dfree = ( *dfree < dfreeq ) ? *dfree : dfreeq ;
       *bsize = bsizeq;
       *dsize = dsizeq;