Fix check_disk disk usage calculation when using --group=NAME (related to bug #1348746)

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1907 f882894a-f735-0410-b71e-b25c423dba1c

2 files changed, 3 insertions, 1 deletions

diff --git a/NEWS b/NEWS
index bf863dde..27dc51d0 100644
--- a/NEWS
+++ b/NEWS
@@ -6,6 +6,7 @@ This file documents the major additions and syntax changes between releases.
         check_dns now sorts addresses for testing results for more than one returned IP (Matthias Urlichs)
         Fix segfault in check_ntp_time and (deprecated) check_ntp. (Bug #1862300)
         check_disk should now work with large file systems (2TB+) on all archs that supports it
+        Fixed check_disk disk usage calculation when using --group=NAME (related to bug #1348746)
 
 1.4.11 13th December 2007
         Fixed check_http regression in 1.4.10 where following redirects to
diff --git a/plugins/check_disk.c b/plugins/check_disk.c
index b8bbdbda..5ef957de 100644
--- a/plugins/check_disk.c
+++ b/plugins/check_disk.c
@@ -265,7 +265,8 @@ main (int argc, char **argv)
                                 (fsp.fsu_blocks + tmpfsp.fsu_blocks);  /* Size of a block.  */
             fsp.fsu_blocks    += tmpfsp.fsu_blocks;     /* Total blocks. */
             fsp.fsu_bfree     += tmpfsp.fsu_bfree;      /* Free blocks available to superuser. */
-            fsp.fsu_bavail    += tmpfsp.fsu_bavail;     /* Free blocks available to non-superuser. */
+            /* Gnulib workaround - see comment about it a few lines below */
+            fsp.fsu_bavail    += (tmpfsp.fsu_bavail > tmpfsp.fsu_bfree ? 0 : tmpfsp.fsu_bavail); /* Free blocks available to non-superuser. */
             fsp.fsu_files     += tmpfsp.fsu_files;      /* Total file nodes. */
             fsp.fsu_ffree     += tmpfsp.fsu_ffree;      /* Free file nodes. */