Index: lib/command.c =================================================================== --- lib/command.c +++ lib/command.c 2011-04-17 11:25:23.000000000 +0200 @@ -3056,7 +3056,7 @@ if ((level = level_match(argv[0])) == ZLOG_DISABLED) return CMD_ERR_NO_MATCH; - zlog(NULL, level, ((message = argv_concat(argv, argc, 1)) ? message : "")); + zlog(NULL, level, "%s", ((message = argv_concat(argv, argc, 1)) ? message : "")); if (message) XFREE(MTYPE_TMP, message); return CMD_SUCCESS; Index: lib/if.c =================================================================== --- lib/if.c +++ lib/if.c 2011-04-17 11:26:08.000000000 +0200 @@ -664,7 +664,7 @@ strncat (logbuf, inet_ntop (p->family, &p->u.prefix, buf, BUFSIZ), BUFSIZ - strlen(logbuf)); } - zlog (NULL, LOG_INFO, logbuf); + zlog (NULL, LOG_INFO, "%s", logbuf); } /* If two connected address has same prefix return 1. */