Prettier error messages

diff --git a/nmrp.c b/nmrp.c
index 61b592db5f6d743a56a4a68201df9c9c5eea9575..d807cd56bb80220ec57e302346949523342e42be 100644 (file)
--- a/nmrp.c
+++ b/nmrp.c
@@ -285,22 +285,22 @@ int nmrp_do(struct nmrpd_args *args)
        }
 
        if (!mac_parse(args->mac, dest)) {
-               fprintf(stderr, "Invalid MAC address %s.\n", args->mac);
+               fprintf(stderr, "Invalid MAC address '%s'.\n", args->mac);
                return 1;
        }
 
        if (!inet_aton(args->ipaddr, &ipaddr)) {
-               fprintf(stderr, "Invalid IP address %s.\n", args->ipaddr);
+               fprintf(stderr, "Invalid IP address '%s'.\n", args->ipaddr);
                return 1;
        }
 
        if (!inet_aton(args->ipmask, &ipmask)) {
-               fprintf(stderr, "Invalid subnet mask %s.\n", args->ipmask);
+               fprintf(stderr, "Invalid subnet mask '%s'.\n", args->ipmask);
                return 1;
        }
 
        if (access(args->filename, R_OK) == -1) {
-               fprintf(stderr, "Error accessing file %s.\n", args->filename);
+               fprintf(stderr, "Error accessing file '%s'.\n", args->filename);
                return 1;
        }