/*
This file is part of libcapwap.
libcapwap is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
libcapwap 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar. If not, see .
*/
/**
*@file
*@brief Implementation of sock_cmpaddrs
*/
#include
#include
#include
#include "sock.h"
/**
* Compare two sockaddrs
* @param addr1 first address to compare
* @param addr2 second address to compare
* @param cmpport if not zero, also compare the port
* @return 0 if both addresses are equal, otherwise a value grater
* or less than zero, depending of the result
*
* Currently there are only AF_INET and AF_INET6 suppoorted.
*/
int sock_cmpaddr(const struct sockaddr *addr1, const struct sockaddr *addr2,int cmpport)
{
uint8_t * s1, * s2;
int p1,p2;
int slen;
if (addr1->sa_family != addr2->sa_family){
return addr1->sa_family - addr2->sa_family;
}
switch (addr1->sa_family){
case AF_INET:
if (cmpport){
p1 = ((struct sockaddr_in*)addr1)->sin_port;
p2 = ((struct sockaddr_in*)addr2)->sin_port;
if (p1!=p2)
return p1-p2;
}
s1 = (uint8_t*)&(((struct sockaddr_in*)addr1)->sin_addr);
s2 = (uint8_t*)&(((struct sockaddr_in*)addr2)->sin_addr);
slen = sizeof(struct in_addr);
break;
case AF_INET6:
if (cmpport){
p1 = ((struct sockaddr_in6*)addr1)->sin6_port;
p2 = ((struct sockaddr_in6*)addr2)->sin6_port;
if (p1!=p2)
return p1-p2;
}
s1 = (uint8_t*)&(((struct sockaddr_in6*)addr1)->sin6_addr);
s2 = (uint8_t*)&(((struct sockaddr_in6*)addr2)->sin6_addr);
slen = sizeof(struct in6_addr);
break;
default:
return -1;
}
return memcmp(s1,s2,slen);
}