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78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
/*
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* Copyright (C) 2021 Purism SPC
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*
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* This file is part of Calls.
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*
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* Calls is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Calls is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 Calls. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Evangelos Ribeiro Tzaras <evangelos.tzaras@puri.sm>
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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*/
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#include "calls-sip-util.h"
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gboolean
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check_ipv6 (const char *host)
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{
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/* TODO DNS SRV records to determine whether or not to use IPv6 */
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return FALSE;
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}
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gboolean
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check_sips (const char *addr)
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{
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/* To keep it simple we only check if the URL starts with "sips:" */
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return g_str_has_prefix (addr, "sips:");
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}
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const gchar *
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get_protocol_prefix (const char *protocol)
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{
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if (g_strcmp0 (protocol, "UDP") == 0 ||
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g_strcmp0 (protocol, "TCP") == 0)
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return "sip";
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if (g_strcmp0 (protocol, "TLS") == 0)
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return "sips";
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return NULL;
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}
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gboolean
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protocol_is_valid (const char *protocol)
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{
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return g_strcmp0 (protocol, "UDP") == 0 ||
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g_strcmp0 (protocol, "TCP") == 0 ||
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g_strcmp0 (protocol, "TLS") == 0;
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}
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#define RTP_PORT_MIN 20000
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#define RTP_PORT_MAX 65534
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guint
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get_port_for_rtp (void)
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{
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const guint rand_range = RTP_PORT_MAX - RTP_PORT_MIN;
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guint rand = (g_random_int () % rand_range) + RTP_PORT_MIN;
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/* RTP ports must be even */
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return rand % 2 == 0 ? rand : rand + 1;
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}
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#undef RTP_PORT_MIN
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#undef RTP_PORT_MAX
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