/* * Called to set up the raw connection. * * Returns an error message, or NULL on success. * * Also places the canonical host name into `realhost'. It must be * freed by the caller. */ static const char *raw_init(void *frontend_handle, void **backend_handle, Conf *conf, const char *host, int port, char **realhost, int nodelay, int keepalive) { static const struct plug_function_table fn_table = { raw_log, raw_closing, raw_receive, raw_sent }; SockAddr addr; const char *err; Raw raw; int addressfamily; char *loghost; raw = snew(struct raw_backend_data); raw->fn = &fn_table; raw->s = NULL; raw->closed_on_socket_error = FALSE; *backend_handle = raw; raw->sent_console_eof = raw->sent_socket_eof = FALSE; raw->bufsize = 0; raw->session_started = FALSE; raw->conf = conf_copy(conf); raw->frontend = frontend_handle; addressfamily = conf_get_int(conf, CONF_addressfamily); /* * Try to find host. */ addr = name_lookup(host, port, realhost, conf, addressfamily, raw->frontend, "main connection"); if ((err = sk_addr_error(addr)) != NULL) { sk_addr_free(addr); return err; } if (port < 0) port = 23; /* default telnet port */ /* * Open socket. */ raw->s = new_connection(addr, *realhost, port, 0, 1, nodelay, keepalive, (Plug) raw, conf); if ((err = sk_socket_error(raw->s)) != NULL) return err; loghost = conf_get_str(conf, CONF_loghost); if (*loghost) { char *colon; sfree(*realhost); *realhost = dupstr(loghost); colon = host_strrchr(*realhost, ':'); if (colon) *colon++ = '\0'; } return NULL; }
/* * Called to set up the rlogin connection. * * Returns an error message, or NULL on success. * * Also places the canonical host name into `realhost'. It must be * freed by the caller. */ static const char *rlogin_init(void *frontend_handle, void **backend_handle, Conf *conf, char *host, int port, char **realhost, int nodelay, int keepalive) { static const struct plug_function_table fn_table = { rlogin_log, rlogin_closing, rlogin_receive, rlogin_sent }; SockAddr addr; const char *err; Rlogin rlogin; char *ruser; int addressfamily; char *loghost; rlogin = snew(struct rlogin_tag); rlogin->fn = &fn_table; rlogin->s = NULL; rlogin->closed_on_socket_error = FALSE; rlogin->frontend = frontend_handle; rlogin->term_width = conf_get_int(conf, CONF_width); rlogin->term_height = conf_get_int(conf, CONF_height); rlogin->firstbyte = 1; rlogin->cansize = 0; rlogin->prompt = NULL; rlogin->conf = conf_copy(conf); *backend_handle = rlogin; addressfamily = conf_get_int(conf, CONF_addressfamily); /* * Try to find host. */ { char *buf; buf = dupprintf("Looking up host \"%s\"%s", host, (addressfamily == ADDRTYPE_IPV4 ? " (IPv4)" : (addressfamily == ADDRTYPE_IPV6 ? " (IPv6)" : ""))); logevent(rlogin->frontend, buf); sfree(buf); } addr = name_lookup(host, port, realhost, conf, addressfamily); if ((err = sk_addr_error(addr)) != NULL) { sk_addr_free(addr); return err; } if (port < 0) port = 513; /* default rlogin port */ /* * Open socket. */ rlogin->s = new_connection(addr, *realhost, port, 1, 0, nodelay, keepalive, (Plug) rlogin, conf); if ((err = sk_socket_error(rlogin->s)) != NULL) return err; loghost = conf_get_str(conf, CONF_loghost); if (*loghost) { char *colon; sfree(*realhost); *realhost = dupstr(loghost); colon = host_strrchr(*realhost, ':'); if (colon) *colon++ = '\0'; } /* * Send local username, remote username, terminal type and * terminal speed - unless we don't have the remote username yet, * in which case we prompt for it and may end up deferring doing * anything else until the local prompt mechanism returns. */ if ((ruser = get_remote_username(conf)) != NULL) { rlogin_startup(rlogin, ruser); sfree(ruser); } else { int ret; rlogin->prompt = new_prompts(rlogin->frontend); rlogin->prompt->to_server = TRUE; rlogin->prompt->name = dupstr("Rlogin login name"); add_prompt(rlogin->prompt, dupstr("rlogin username: "), TRUE); ret = get_userpass_input(rlogin->prompt, NULL, 0); if (ret >= 0) { rlogin_startup(rlogin, rlogin->prompt->prompts[0]->result); } } return NULL; }