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%% options
copyright owner = Dirk Krause
copyright year = 2015-xxxx
SPDX-License-Identifier: BSD-3-Clause
%% module
#include "dk4conf.h"
#include "dk4sock.h"
#include "dk4mem.h"
#if DK4_HAVE_ASSERT_H
#ifndef ASSERT_H_INCLUDED
#include <assert.h>
#define ASSERT_H_INCLUDED 1
#endif
#endif
$!trace-include
dk4_socket_set_t *
dk4socket_set_server_directly(
unsigned short portno,
int backlog,
int local,
dk4_er_t *erp
)
{
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
struct sockaddr_in6 soin6;
#endif
struct sockaddr_in soin4;
dk4_socket_set_t *back = NULL;
size_t max;
int res;
#if DK4_HAVE_SETSOCKOPT && (defined(SO_REUSEPORT) || defined(SO_REUSEADDR))
int opt;
#endif
#if DK4_USE_ASSERT
assert(0 < portno);
#endif
if (0 < portno) {
max = 1;
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
max++;
#endif
back = dk4socket_set_new(max, erp);
if (NULL != back) {
/* IPv4 address
*/
DK4_MEMRES(&soin4, sizeof(soin4));
soin4.sin_family = AF_INET;
soin4.sin_port = dk4socket_htons(portno);
if (0 != local) {
soin4.sin_addr.s_addr = dk4socket_htonl(INADDR_LOOPBACK);
} else {
soin4.sin_addr.s_addr = dk4socket_htonl(INADDR_ANY);
}
(back->pSockets)[back->szUsed] = dk4socket_open(
AF_INET, SOCK_STREAM, 0, erp
);
if (INVALID_SOCKET != (back->pSockets)[back->szUsed]) {
#if DK4_HAVE_SETSOCKOPT && defined(SO_REUSEPORT)
dk4socket_set_one_bytes(&opt, sizeof(opt));
res = setsockopt(
(back->pSockets)[back->szUsed], SOL_SOCKET,
SO_REUSEPORT, (void *)(&opt), sizeof(opt)
);
if (0 != res) { $? "! failed to reuse port number"
}
#else
#if DK4_HAVE_SETSOCKOPT && defined(SO_REUSEADDR)
$? ". SO_REUSEADDR"
dk4socket_set_one_bytes(&opt, sizeof(opt));
res = setsockopt(
(back->pSockets)[back->szUsed], SOL_SOCKET,
SO_REUSEADDR, (void *)(&opt), sizeof(opt)
);
if (0 != res) { $? "! failed to reuse address"
}
#else
$? ". neither SO_REUSEPORT nor SO_REUSEADDR"
#endif
#endif
res = dk4socket_bind(
(back->pSockets)[back->szUsed],
(struct sockaddr *)(&soin4),
sizeof(soin4),
erp
);
if (DK4_SOCKET_RESULT_SUCCESS == res) {
res = dk4socket_listen(
(back->pSockets)[back->szUsed],
backlog,
erp
);
if (DK4_SOCKET_RESULT_SUCCESS == res) {
back->szUsed += 1;
} else {
(void)dk4socket_close((back->pSockets)[back->szUsed], NULL);
(back->pSockets)[back->szUsed] = INVALID_SOCKET;
}
} else {
(void)dk4socket_close((back->pSockets)[back->szUsed], NULL);
(back->pSockets)[back->szUsed] = INVALID_SOCKET;
}
}
/* IPv6 address if available
*/
#if DK4_HAVE_STRUCT_SOCKADDR_IN6
DK4_MEMRES(&soin6, sizeof(soin6));
soin6.sin6_family = AF_INET6;
if (0 != local) { soin6.sin6_addr.s6_addr[15] = 0x01; }
soin6.sin6_port = dk4socket_htons(portno);
(back->pSockets)[back->szUsed] = dk4socket_open(
AF_INET6, SOCK_STREAM, 0, erp
);
if (INVALID_SOCKET != (back->pSockets)[back->szUsed]) {
#if DK4_HAVE_SETSOCKOPT && defined(SO_REUSEPORT)
dk4socket_set_one_bytes(&opt, sizeof(opt));
res = setsockopt(
(back->pSockets)[back->szUsed], SOL_SOCKET,
SO_REUSEPORT, (void *)(&opt), sizeof(opt)
);
if (0 != res) { $? "! failed to reuse port number"
}
#else
#if DK4_HAVE_SETSOCKOPT && defined(SO_REUSEADDR)
$? ". SO_REUSEADDR"
dk4socket_set_one_bytes(&opt, sizeof(opt));
res = setsockopt(
(back->pSockets)[back->szUsed], SOL_SOCKET,
SO_REUSEADDR, (void *)(&opt), sizeof(opt)
);
if (0 != res) { $? "! failed to reuse address"
}
#else
$? ". neither SO_REUSEPORT nor SO_REUSEADDR"
#endif
#endif
res = dk4socket_bind(
(back->pSockets)[back->szUsed],
(struct sockaddr *)(&soin6),
sizeof(soin6),
erp
);
if (DK4_SOCKET_RESULT_SUCCESS == res) {
res = dk4socket_listen(
(back->pSockets)[back->szUsed],
backlog,
erp
);
if (DK4_SOCKET_RESULT_SUCCESS == res) {
back->szUsed += 1;
} else {
(void)dk4socket_close((back->pSockets)[back->szUsed], NULL);
(back->pSockets)[back->szUsed] = INVALID_SOCKET;
}
} else {
(void)dk4socket_close((back->pSockets)[back->szUsed], NULL);
(back->pSockets)[back->szUsed] = INVALID_SOCKET;
}
}
#endif
if (0 == back->szUsed) {
dk4socket_set_delete(back, NULL);
back = NULL;
}
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
}
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