add memccpy.c

Not sure if this is worth the added bin size yet but I will
see where I can use it to try and make it worth it

Change-Id: Icc299d3986172ff224a14be48da3bf065d728a66

1 files changed, 7 insertions, 2 deletions

diff --git a/apps/playlist_viewer.c b/apps/playlist_viewer.c
index d2774e67b0..f1f8954113 100644
--- a/apps/playlist_viewer.c
+++ b/apps/playlist_viewer.c
@@ -516,7 +516,10 @@ static enum pv_onplay_result open_with(const struct playlist_entry *current_trac
 {
     char selected_track[MAX_PATH];
     close_playlist_viewer();
-    snprintf(selected_track, sizeof(selected_track), "%s", current_track->name);
+
+    if (!memccpy (selected_track, current_track->name, '\0', sizeof(selected_track)))
+        selected_track[sizeof(selected_track) - 1] = '\0';
+
 
     return (filetype_list_viewers(selected_track) ==
                 PLUGIN_USB_CONNECTED ? PV_ONPLAY_USB_CLOSED : PV_ONPLAY_CLOSED);
@@ -528,7 +531,9 @@ static enum pv_onplay_result open_pictureflow(const struct playlist_entry *curre
 {
     char selected_track[MAX_PATH];
     close_playlist_viewer();
-    snprintf(selected_track, sizeof(selected_track), "%s", current_track->name);
+
+    if (!memccpy (selected_track, current_track->name, '\0', sizeof(selected_track)))
+        selected_track[sizeof(selected_track) - 1] = '\0';
 
     return (filetype_load_plugin((void *)"pictureflow", selected_track) ==
                 PLUGIN_USB_CONNECTED ? PV_ONPLAY_USB_CLOSED : PV_ONPLAY_CLOSED);