merge with 3.8.4g

[gnulib.git] / lib / fsusage.c

diff --git a/lib/fsusage.c b/lib/fsusage.c
index 2a1fe86..96860eb 100644 (file)
--- a/lib/fsusage.c
+++ b/lib/fsusage.c
@@ -15,12 +15,23 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
+#ifdef HAVE_CONFIG_H
+#if defined (CONFIG_BROKETS)
+/* We use <config.h> instead of "config.h" so that a compilation
+   using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
+   (which it would do because it found this file in $srcdir).  */
+#include <config.h>
+#else
+#include "config.h"
+#endif
+#endif
+
 #include <sys/types.h>
 #include "fsusage.h"
 
 int statfs ();
 
-#if defined (STATFS_OSF1)      /* DEC Alpha running OSF/1 */
+#if defined (STAT_STATFS3_OSF1)        /* DEC Alpha running OSF/1 */
 #  include <sys/mount.h>
 #endif
 
@@ -58,7 +69,7 @@ int statvfs ();
 #endif
 
 /* Return the number of TOSIZE-byte blocks used by
-   BLOCKS FROMSIZE-byte blocks, rounding up.  */
+   BLOCKS FROMSIZE-byte blocks, rounding away from zero.  */
 
 static long
 adjust_blocks (blocks, fromsize, tosize)
@@ -70,7 +81,7 @@ adjust_blocks (blocks, fromsize, tosize)
   else if (fromsize > tosize)  /* E.g., from 2048 to 512.  */
     return blocks * (fromsize / tosize);
   else                         /* E.g., from 256 to 512.  */
-    return (blocks + 1) / (tosize / fromsize);
+    return (blocks + (blocks < 0 ? -1 : 1)) / (tosize / fromsize);
 }
 
 /* Fill in the fields of FSP with information about space usage for
@@ -84,13 +95,13 @@ get_fs_usage (path, disk, fsp)
      char *path, *disk;
      struct fs_usage *fsp;
 {
-#if defined (STATFS_OSF1)
+#if defined (STAT_STATFS3_OSF1)
   struct statfs fsd;
 
   if (statfs (path, &fsd, sizeof (struct statfs)) != 0)
     return (-1);
 #define convert_blocks(b) adjust_blocks ((b),fsd.f_fsize, 512)
-#endif /* STATFS_OSF1 */
+#endif /* STAT_STATFS3_OSF1 */
 
 #ifdef STAT_STATFS2_FS_DATA    /* Ultrix.  */
   struct fs_data fsd;
@@ -156,9 +167,11 @@ get_fs_usage (path, disk, fsp)
      no matter what value f_bsize has.  */
 #define convert_blocks(b) (b)
 #ifndef _SEQUENT_              /* _SEQUENT_ is DYNIX/ptx.  */
+#ifndef DOLPHIN                        /* DOLPHIN 3.8.alfa/7.18 has f_bavail */
 #define f_bavail f_bfree
 #endif
 #endif
+#endif
 
 #ifdef STAT_STATVFS            /* SVR4.  */
   struct statvfs fsd;