Fix segmentation violation

When non-cycling mode prevents navigator from wrapping to the other end of list,
undo change to nav->cur_path.  Otherwise it will remain out-of-bounds, so that
subsequent calls to navigator functions may produce unexpected results, up to
segmentation violation.

Fixes #93

1 files changed, 4 insertions, 0 deletions

diff --git a/src/navigator.c b/src/navigator.c
index a64fb44..b4e65fb 100644
--- a/src/navigator.c
+++ b/src/navigator.c
@@ -146,12 +146,16 @@ int imv_navigator_select_rel(struct imv_navigator *nav, int direction,
   if(nav->cur_path == nav->num_paths) {
     /* end of list reached */
     if(!cycle) {
+      /* undo move */
+      nav->cur_path -= direction;
       return 0;
     }
     nav->cur_path = 0;
   } else if(nav->cur_path < 0) {
     /* going backwards at the beginning of the list */
     if(!cycle) {
+      /* undo move */
+      nav->cur_path -= direction;
       return 0;
     }
     nav->cur_path = nav->num_paths - 1;