fix segfault if we try to copy an empty selection

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3432 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

diff --git a/src/cut.c b/src/cut.c
index 4b45830057dd812180c72bef4434d7b570175c3c..e3ca576e4bd29a6f4da14e406b6856cccc65523f 100644 (file)
--- a/src/cut.c
+++ b/src/cut.c
@@ -161,14 +161,15 @@ void do_cut_text(
        cut_line();
 
 #ifndef NANO_TINY
-    if (copy_text)
+    if (copy_text) {
        /* Copy the text in the cutbuffer, starting at its saved end if
         * there is one, back into the filestruct.  This effectively
         * uncuts the text we just cut without marking the file as
         * modified. */
-       copy_from_filestruct((cb_save != NULL) ? cb_save : cutbuffer,
-               cutbottom);
-    else
+       if (cutbuffer != NULL)
+           copy_from_filestruct((cb_save != NULL) ? cb_save :
+               cutbuffer, cutbottom);
+    } else
 #endif
        /* Leave the text in the cutbuffer, and mark the file as
         * modified. */