[PATCH 3/3] libdiskfs: fix string termination

[Justus Winter]

Found using the Clang Static Analyzer.

* libdiskfs/fsys-getroot.c (diskfs_S_fsys_getroot): Fix string
termination.
---
 libdiskfs/fsys-getroot.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/libdiskfs/fsys-getroot.c b/libdiskfs/fsys-getroot.c
index 5212214..10793c8 100644
--- a/libdiskfs/fsys-getroot.c
+++ b/libdiskfs/fsys-getroot.c
@@ -101,15 +101,17 @@ diskfs_S_fsys_getroot (struct diskfs_control *pt,
     {
       /* Handle symlink interpretation */
       char pathbuf[diskfs_root_node->dn_stat.st_size + 1];
-      size_t amt;
 
       if (diskfs_read_symlink_hook)
        err = (*diskfs_read_symlink_hook) (diskfs_root_node, pathbuf);
       if (!diskfs_read_symlink_hook || err == EINVAL)
-       err = diskfs_node_rdwr (diskfs_root_node, pathbuf, 0,
+       {
+         size_t amt = 0;
+         err = diskfs_node_rdwr (diskfs_root_node, pathbuf, 0,
                                  diskfs_root_node->dn_stat.st_size, 0,
                                  0, &amt);
-      pathbuf[amt] = '\0';
+         pathbuf[amt] = '\0';
+       }
 
       pthread_mutex_unlock (&diskfs_root_node->lock);
       pthread_rwlock_unlock (&diskfs_fsys_lock);
-- 
1.9.0