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107 lines
2.4 KiB
C
107 lines
2.4 KiB
C
/*
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* Copyright(c) 2016-2018 Free Software Foundation, Inc.
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*
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* This file is part of libwget.
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*
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* Libwget is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser 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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* Libwget 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libwget. If not, see <https://www.gnu.org/licenses/>.
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*
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*
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* IP address helper routines
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*
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*/
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#include <config.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <wget.h>
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#include "private.h"
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/**
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* \file
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* \brief IP address functions
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* \defgroup libwget-ip IP address functions
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* @{
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*
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* Routines to check IP address formats.
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*/
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/**
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* \param[in] host Host/IP string
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* \param[in] family IP address family
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* \return
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* 1 if \p host matches is of \p family<br>
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* 0 if \p host does not match \p family<br>
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*
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* This functions checks if \p host matches the given \p family or not.
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*/
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bool wget_ip_is_family(const char *host, int family)
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{
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struct sockaddr_storage dst;
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if (!host)
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return 0;
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switch (family) {
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case WGET_NET_FAMILY_IPV4:
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return inet_pton(AF_INET, host, (struct in_addr *) &dst);
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case WGET_NET_FAMILY_IPV6:
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return inet_pton(AF_INET6, host, (struct in6_addr *) &dst);
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default:
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return 0;
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}
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}
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/* Not finished, currently not needed
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int wget_ip_is_ip(const char *addr)
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{
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if (!addr)
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return 0;
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return wget_ip_is_family(addr, WGET_NET_FAMILY_IPV4) || wget_ip_is_family(addr, WGET_NET_FAMILY_IPV6);
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}
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int wget_ip_parse_cidr(const char *s, wget_network_addr_t *addr)
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{
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if (!s)
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return -1;
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const char *p;
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int mask_bits = 32;
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uint32_t mask = 0xFFFFFFFF;
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if ((p = strchr(s, "/"))) {
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if ((c_isdigit(p[1]) && p[2] == 0)
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|| (p[1] >= '1' && p[1] <= '3' && isdigit(p[2]) && p[3] == 0))
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{
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mask_bits = atoi(p + 1);
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if (mask_bits > 32)
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return -1;
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if (mask_bits == 0)
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mask = 0;
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else if (mask_bits < 32)
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mask = mask << (32 - mask_bits);
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} else
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return -1;
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}
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return wget_ip_is_family(addr, WGET_NET_FAMILY_IPV4) || wget_ip_is_family(addr, WGET_NET_FAMILY_IPV6);
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}
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*/
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/**@}*/
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