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/*
WARNING: This file was generated by dkct.
Changes you make here will be lost if dkct is run again!
You should modify the original source and run dkct on it.
Original source: dk4sock28.ctr
*/
/*
Copyright (C) 2015-2017, Dirk Krause
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above opyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of the author nor the names of contributors may be used
to endorse or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @file dk4sock28.c The dk4sock28 module.
*/
#line 10 "dk4sock28.ctr"
#include "dk4conf.h"
#include "dk4types.h"
#include "dk4error.h"
#include "dk4sock.h"
#include "dk4sto.h"
#line 20 "dk4sock28.ctr"
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
/** Compare IPv6 address structures.
@param left Left address in comparison.
@param mask Network mask to use, may be NULL.
@param right Right address in comparison.
@return -1, 0 or 1 if l<r, l==r or l>r.
*/
static
int
dk4socket_compare_in6_addr3(
const struct in6_addr *left,
const struct in6_addr *mask,
const struct in6_addr *right
)
{
const unsigned char *ucl;
const unsigned char *ucm;
const unsigned char *ucr;
unsigned char ul;
unsigned char ur;
size_t i;
int back = 0;
ucl = &(left->s6_addr[0]);
ucm = &(mask->s6_addr[0]);
ucr = &(right->s6_addr[0]);
for (i = 0; ((16 > i) && (0 == back)); i++) {
ul = ucl[i];
ur = ucr[i];
if (NULL != mask) {
ul &= ucm[i];
ur &= ucm[i];
}
if (ul > ur) {
back = 1;
} else {
if (ul < ur) {
back = -1;
}
}
}
return back;
}
#endif
int
dk4socket_allowed_peer_compare(
const void *pl,
const void *pr,
int cr
)
{
const dk4_allowed_peer_t *ppl;
const dk4_allowed_peer_t *ppr;
const struct sockaddr *pso;
const struct sockaddr_in *ps4;
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
const struct sockaddr_in6 *ps6;
#endif
unsigned long ul1;
unsigned long ul2;
unsigned long ul3;
int back = 0;
#line 91 "dk4sock28.ctr"
if (NULL != pl) {
if (NULL != pr) {
switch (cr) {
case 1: {
#line 95 "dk4sock28.ctr"
ppl = (const dk4_allowed_peer_t *)pl;
pso = (const struct sockaddr *)pr;
#line 98 "dk4sock28.ctr"
if (ppl->af < pso->sa_family) {
#line 99 "dk4sock28.ctr"
back = -1;
} else {
if (ppl->af > pso->sa_family) {
#line 102 "dk4sock28.ctr"
back = 1;
}
}
if (0 == back) {
#line 106 "dk4sock28.ctr"
switch (ppl->af) {
case AF_INET : {
#line 108 "dk4sock28.ctr"
ul1 = (ppl->data).ipv4.ad.s_addr;
ul3 = (ppl->data).ipv4.ma.s_addr;
ps4 = (const struct sockaddr_in *)pso;
ul2 = ps4->sin_addr.s_addr;
ul1 = dk4socket_ntohl(ul1);
ul2 = dk4socket_ntohl(ul2);
ul3 = dk4socket_ntohl(ul3);
#line 116 "dk4sock28.ctr"
#line 117 "dk4sock28.ctr"
#line 118 "dk4sock28.ctr"
ul1 &= ul3;
ul2 &= ul3;
#line 121 "dk4sock28.ctr"
#line 122 "dk4sock28.ctr"
if (ul1 > ul2) {
back = 1;
} else {
if (ul1 < ul2) {
back = -1;
}
}
} break;
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
case AF_INET6 : {
#line 132 "dk4sock28.ctr"
ps6 = (const struct sockaddr_in6 *)pso;
back = dk4socket_compare_in6_addr3(
&((ppl->data).ipv6.ad),
&((ppl->data).ipv6.ma),
&(ps6->sin6_addr)
);
} break;
#endif
}
}
} break;
default : {
#line 144 "dk4sock28.ctr"
ppl = (const dk4_allowed_peer_t *)pl;
ppr = (const dk4_allowed_peer_t *)pr;
if (ppl->af < ppr->af) {
back = -1;
} else {
if (ppl->af > ppr->af) {
back = 1;
}
}
if (0 == back) {
switch (ppl->af) {
case AF_INET : {
ul1 = (ppl->data).ipv4.ad.s_addr;
ul2 = (ppr->data).ipv4.ad.s_addr;
ul1 = dk4socket_ntohl(ul1);
ul2 = dk4socket_ntohl(ul2);
if (ul1 > ul2) {
back = 1;
} else {
if (ul1 < ul2) {
back = -1;
}
}
ul1 = (ppl->data).ipv4.ma.s_addr;
ul2 = (ppr->data).ipv4.ma.s_addr;
ul1 = dk4socket_ntohl(ul1);
ul2 = dk4socket_ntohl(ul2);
if (ul1 > ul2) {
back = 1;
} else {
if (ul1 < ul2) {
back = -1;
}
}
} break;
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
case AF_INET6 : {
back = dk4socket_compare_in6_addr3(
&((ppl->data).ipv6.ad),
NULL,
&((ppr->data).ipv6.ad)
);
if (0 == back) {
back = dk4socket_compare_in6_addr3(
&((ppl->data).ipv6.ma),
NULL,
&((ppr->data).ipv6.ma)
);
}
} break;
#endif
}
}
} break;
}
} else { back= 1; }
} else {
if (NULL != pr) { back = -1; }
}
#line 203 "dk4sock28.ctr"
return back;
}
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