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/*
* Copyright (c) 2016-2024 Free Software Foundation, Inc.
*
* This file is part of libwget.
*
* Libwget is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Libwget is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libwget. If not, see <https://www.gnu.org/licenses/>.
*
*
* IP address helper routines
*
*/
#include <config.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <wget.h>
#include "private.h"
/**
* \file
* \brief IP address functions
* \defgroup libwget-ip IP address functions
* @{
*
* Routines to check IP address formats.
*/
/**
* \param[in] host Host/IP string
* \param[in] family IP address family
* \return
* 1 if \p host matches is of \p family<br>
* 0 if \p host does not match \p family<br>
*
* This functions checks if \p host matches the given \p family or not.
*/
bool wget_ip_is_family(const char *host, int family)
{
struct sockaddr_storage dst;
if (!host)
return false;
switch (family) {
case WGET_NET_FAMILY_IPV4:
return inet_pton(AF_INET, host, (struct in_addr *) &dst) == 1;
case WGET_NET_FAMILY_IPV6:
return inet_pton(AF_INET6, host, (struct in6_addr *) &dst) == 1;
default:
return false;
}
}
/* Not finished, currently not needed
int wget_ip_is_ip(const char *addr)
{
if (!addr)
return 0;
return wget_ip_is_family(addr, WGET_NET_FAMILY_IPV4) || wget_ip_is_family(addr, WGET_NET_FAMILY_IPV6);
}
int wget_ip_parse_cidr(const char *s, wget_network_addr_t *addr)
{
if (!s)
return -1;
const char *p;
int mask_bits = 32;
uint32_t mask = 0xFFFFFFFF;
if ((p = strchr(s, "/"))) {
if ((c_isdigit(p[1]) && p[2] == 0)
|| (p[1] >= '1' && p[1] <= '3' && isdigit(p[2]) && p[3] == 0))
{
mask_bits = atoi(p + 1);
if (mask_bits > 32)
return -1;
if (mask_bits == 0)
mask = 0;
else if (mask_bits < 32)
mask = mask << (32 - mask_bits);
} else
return -1;
}
return wget_ip_is_family(addr, WGET_NET_FAMILY_IPV4) || wget_ip_is_family(addr, WGET_NET_FAMILY_IPV6);
}
*/
/**@}*/
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