subscribefunc: ensure we have an address to (un)subscribe

diff --git a/src/subscriberfuncs.c b/src/subscriberfuncs.c
index f197b731ab5f7e0e214e47d77d750cde47e739b9..60b9cd6d5d65878a0fe494094cef582a22c5f738 100644 (file)
--- a/src/subscriberfuncs.c
+++ b/src/subscriberfuncs.c
@@ -655,6 +655,9 @@ do_subscribe(struct ml *ml, struct subscription *sub, const char *addr)
                sub->reasonsub = SUB_PERMIT;
        }
 
+       if (address == NULL)
+               errx(EXIT_FAILURE, "No address to subscribe found");
+
        if(strncasecmp(ml->addr, address, strlen(ml->addr)) == 0)
                errx(EXIT_FAILURE, "Cannot subscribe the list address to the list");