File netkit-ntalk-0.17-dots_in_usernames.patch of Package talk
--- talk/get_names.c +++ talk/get_names.c @@ -80,7 +80,7 @@ my_machine_name = hostname; /* check for, and strip out, the machine name of the target */ names = strdup(argv[1]); - for (cp = names; *cp && !index("@:!.", *cp); cp++) + for (cp = names; *cp && !index("@:!", *cp); cp++) ; if (*cp == '\0') { /* this is a local to local talk */