Bug#700738: one patch, but plenty more needed

[David Bremner]

The use-after-frees are quite trivial to fix


diff --git a/ttyclock.c b/ttyclock.c
index bd0c478..a626f13 100644
--- a/ttyclock.c
+++ b/ttyclock.c
@@ -461,14 +461,14 @@ main(int argc, char **argv)
                break;
           case 'i':
                puts("TTY-Clock 2 © by Martin Duquesnoy (xor...@gmail.com)");
-               free(ttyclock);
                free(ttyclock->option.format);
+               free(ttyclock);
                exit(EXIT_SUCCESS);
                break;
           case 'v':
                puts("TTY-Clock 2 © devel version");
-               free(ttyclock);
                free(ttyclock->option.format);
+               free(ttyclock);
                exit(EXIT_SUCCESS);
                break;
           case 's':
@@ -510,8 +510,8 @@ main(int argc, char **argv)
           key_event();
      }
 
-     free(ttyclock);
      free(ttyclock->option.format);
+     free(ttyclock);
      endwin();
 
      return 0;

But running the program under valgrind suggests quite a few memory
access problems remain. 

FWIW, I couldn't duplicate the abort on Linux.

d