104 lines
3.3 KiB
C
104 lines
3.3 KiB
C
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/*
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* Copyright (c) 2016-2021, OARC, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "endpoint.h"
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#include "args.h"
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#include "iaddr.h"
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void endpoint_arg(endpoint_list* list, const char* arg)
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{
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struct addrinfo* ai;
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iaddr ia;
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void* p;
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if (inet_pton(AF_INET6, arg, &ia.u.a6) > 0) {
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ia.af = AF_INET6;
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endpoint_add(list, ia);
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} else if (inet_pton(AF_INET, arg, &ia.u.a4) > 0) {
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ia.af = AF_INET;
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endpoint_add(list, ia);
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} else if (getaddrinfo(arg, NULL, NULL, &ai) == 0) {
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struct addrinfo* a;
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for (a = ai; a != NULL; a = a->ai_next) {
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if (a->ai_socktype != SOCK_DGRAM)
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continue;
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switch (a->ai_family) {
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case PF_INET:
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ia.af = AF_INET;
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p = &((struct sockaddr_in*)a->ai_addr)
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->sin_addr;
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memcpy(&ia.u.a4, p, sizeof ia.u.a4);
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break;
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case PF_INET6:
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ia.af = AF_INET6;
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p = &((struct sockaddr_in6*)a->ai_addr)
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->sin6_addr;
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memcpy(&ia.u.a6, p, sizeof ia.u.a6);
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break;
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default:
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continue;
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}
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endpoint_add(list, ia);
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}
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freeaddrinfo(ai);
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} else
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usage("invalid host address");
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}
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void endpoint_add(endpoint_list* list, iaddr ia)
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{
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endpoint_ptr ep;
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ep = calloc(1, sizeof *ep);
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assert(ep != NULL);
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INIT_LINK(ep, link);
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ep->ia = ia;
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APPEND(*list, ep, link);
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}
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int ep_present(const endpoint_list* list, iaddr ia)
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{
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endpoint_ptr ep;
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for (ep = HEAD(*list);
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ep != NULL;
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ep = NEXT(ep, link))
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if (ia_equal(ia, ep->ia))
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return TRUE;
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return (FALSE);
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}
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