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%% options
copyright owner = Dirk Krause
copyright year = 2016-xxxx
SPDX-License-Identifier: BSD-3-Clause
%% module
#include "dk4conf.h"
#include "dk4types.h"
#include "dk4mem.h"
#include "dk4sock.h"
#include "dk4mai8dus.h"
#include "dk4mao8d.h"
#if DK4_HAVE_ASSERT_H
#ifndef ASSERT_H_INCLUDED
#include <assert.h>
#define ASSERT_H_INCLUDED 1
#endif
#endif
$!trace-include
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
/** used to initialize IPv6 address for binding local ports.
*/
static const IN6_ADDR dk4socket_any6 = IN6ADDR_ANY_INIT;
#endif
int
dk4socket_address_family(dk4_sockaddr_storage_t *aptr)
{
struct sockaddr *sa = NULL;
int back = AF_UNSPEC;
#if DK4_USE_ASSERT
assert(NULL != aptr);
#endif
if (NULL != aptr) {
sa = (struct sockaddr *)aptr;
switch (sa->sa_family) {
case AF_INET :
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
case AF_INET6 :
#endif
{
back = sa->sa_family;
} break;
}
}
return back;
}
size_t
dk4socket_address_size(dk4_sockaddr_storage_t *aptr)
{
struct sockaddr *sa;
size_t back = 0;
#if DK4_USE_ASSERT
assert(NULL != aptr);
#endif
if (NULL != aptr) {
sa = (struct sockaddr *)aptr;
switch (sa->sa_family) {
case AF_INET : {
back = sizeof(struct sockaddr_in);
} break;
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
case AF_INET6 : {
back = sizeof(struct sockaddr_in6);
} break;
#endif
}
}
return back;
}
int
dk4socket_complete_addresses(
dk4_sockaddr_storage_t *array,
unsigned short remport,
unsigned short locport
)
{
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
struct sockaddr_in6 *sa6;
#endif
struct sockaddr_in *sa4;
struct sockaddr *sa;
int back = DK4_SOCKET_RESULT_FAILED;
$? "+ dk4socket_complete_addresses"
#if DK4_USE_ASSERT
assert(NULL != array);
#endif
sa = (struct sockaddr *)array;
switch (sa->sa_family) {
case AF_INET : { $? ". IPv4"
sa4 = (struct sockaddr_in *)array;
sa4->sin_port = dk4socket_htons(remport);
sa4 = (struct sockaddr_in *)(&(array[1]));
sa4->sin_family = AF_INET;
sa4->sin_addr.s_addr = dk4socket_htonl(INADDR_ANY);
sa4->sin_port = dk4socket_htons(locport);
back = DK4_SOCKET_RESULT_SUCCESS;
} break;
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
case AF_INET6 : { $? ". IPv6"
sa6 = (struct sockaddr_in6 *)array;
sa6->sin6_port = dk4socket_htons(remport);
sa6 = (struct sockaddr_in6 *)(&(array[1]));
sa6->sin6_family = AF_INET6;
DK4_MEMCPY(&(sa6->sin6_addr), &dk4socket_any6, sizeof(IN6_ADDR));
sa6->sin6_port = dk4socket_htons(locport);
back = DK4_SOCKET_RESULT_SUCCESS;
} break;
#endif
}
$? "- dk4socket_complete_addresses %d", back
return back;
}
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