mirror of https://github.com/wb2osz/direwolf.git
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
//
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// This file is part of Dire Wolf, an amateur radio packet TNC.
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//
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// Copyright (C) 2020 Heikki Hannikainen, OH7LZB
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//
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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/*------------------------------------------------------------------
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*
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* Module: dns_sd_common.c
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*
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* Purpose: Announce the KISS over TCP service using DNS-SD, common functions
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*
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* Description:
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*
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* Most people have typed in enough IP addresses and ports by now, and
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* would rather just select an available TNC that is automatically
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* discovered on the local network. Even more so on a mobile device
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* such an Android or iOS phone or tablet.
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*
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* This module contains common functions needed on Linux and MacOS.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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/* Get a default service name to publish. By default,
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* "Dire Wolf on <hostname>", or just "Dire Wolf" if hostname cannot
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* be obtained.
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*/
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char *dns_sd_default_service_name(void)
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{
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char hostname[51];
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char sname[64];
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int i = gethostname(hostname, sizeof(hostname));
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if (i == 0) {
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hostname[sizeof(hostname)-1] = 0;
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// on some systems, an FQDN is returned; remove domain part
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char *dot = strchr(hostname, '.');
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if (dot)
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*dot = 0;
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snprintf(sname, sizeof(sname), "Dire Wolf on %s", hostname);
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return strdup(sname);
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}
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return strdup("Dire Wolf");
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}
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