npppd: crashes/random behaviour due to non-zeroed struct

[Anders Berggren]

Hi,

I had a problem where npppd sometimes started with random configurations, and 
resolved it by callocing the struct in subject. 

Cheers!
Anders

--- /usr/src/usr.sbin/npppd/npppd/parse.y.orig  Wed May  7 09:25:49 2014
+++ /usr/src/usr.sbin/npppd/npppd/parse.y       Wed May  7 09:26:20 2014
@@ -874,7 +874,7 @@
                                YYERROR;
                        }
 
-                       if ((n = malloc(sizeof(struct iface))) == NULL) {
+                       if ((n = calloc(1, sizeof(struct iface))) == NULL) {
                                yyerror("out of memory");
                                free($2);
                                YYERROR;