top: fix segfault for $if_running

The "name" field may be zero, which makes strcmp() freak out.

diff --git a/src/top.c b/src/top.c
index 980cc4c..4596557 100644 (file)
--- a/src/top.c
+++ b/src/top.c
@@ -131,7 +131,7 @@ struct process *get_process_by_name(const char *name)
        struct process *p = first_process;
 
        while (p) {
-               if (!strcmp(p->name, name))
+               if (p->name && !strcmp(p->name, name))
                        return p;
                p = p->next;
        }