[gvfs/gnome-2-28] [SMB] Fix free space calculation for Windows hosts

[Alexander Larsson <alexl src gnome org>]

commit 64f936f3ad40ca52e115099b62b3b4912323a800
Author: Tomas Bzatek <tbzatek redhat com>
Date:   Wed Nov 18 13:16:03 2009 +0100

    [SMB] Fix free space calculation for Windows hosts
    
    Needs more testing, it's just a workaround.
    libsmbclient docs missing!
    (cherry picked from commit 922d398b8896684e166808ae047764633836913f)

 daemon/gvfsbackendsmb.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/daemon/gvfsbackendsmb.c b/daemon/gvfsbackendsmb.c
index 1f8dc6b..37c6c20 100644
--- a/daemon/gvfsbackendsmb.c
+++ b/daemon/gvfsbackendsmb.c
@@ -1614,8 +1614,12 @@ do_query_fs_info (GVfsBackend *backend,
 
       if (res == 0)
         {
-          g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE, st.f_bsize * st.f_blocks);
-          g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, st.f_bsize * st.f_bavail);
+          /* FIXME: inconsistent return values (libsmbclient-3.4.2)
+           *       - for linux samba hosts, f_frsize is zero and f_bsize is a real block size
+           *       - for some Windows hosts (XP), f_frsize and f_bsize should be multiplied to get real block size
+           */
+          g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE, st.f_bsize * st.f_blocks * ((st.f_frsize == 0) ? 1 : st.f_frsize));
+          g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, st.f_bsize * st.f_bfree * ((st.f_frsize == 0) ? 1 : st.f_frsize));
           g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, st.f_flag & SMBC_VFS_FEATURE_RDONLY);
         }
     }