80 lines
1.6 KiB
C
80 lines
1.6 KiB
C
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
|
|
#include <net/netlib.h>
|
|
#include <net/gen/in.h>
|
|
#include <net/gen/tcp.h>
|
|
#include <net/gen/tcp_io.h>
|
|
#include <net/gen/udp.h>
|
|
#include <net/gen/udp_io.h>
|
|
|
|
#define DEBUG 0
|
|
|
|
static int _tcp_accept(int socket, struct sockaddr *_RESTRICT address,
|
|
socklen_t *_RESTRICT address_len);
|
|
|
|
int accept(int socket, struct sockaddr *_RESTRICT address,
|
|
socklen_t *_RESTRICT address_len)
|
|
{
|
|
int r;
|
|
nwio_udpopt_t udpopt;
|
|
|
|
r= _tcp_accept(socket, address, address_len);
|
|
if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
|
|
return r;
|
|
|
|
/* Unfortunately, we have to return EOPNOTSUPP for a socket that
|
|
* does not support accept (such as a UDP socket) and ENOTSOCK for
|
|
* filedescriptors that do not refer to a socket.
|
|
*/
|
|
r= ioctl(socket, NWIOGUDPOPT, &udpopt);
|
|
if (r == 0)
|
|
{
|
|
/* UDP socket */
|
|
errno= EOPNOTSUPP;
|
|
return -1;
|
|
}
|
|
if ((errno == ENOTTY || errno == EBADIOCTL))
|
|
{
|
|
errno= ENOTSOCK;
|
|
return -1;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static int _tcp_accept(int socket, struct sockaddr *_RESTRICT address,
|
|
socklen_t *_RESTRICT address_len)
|
|
{
|
|
int r, s1, t_errno;
|
|
tcp_cookie_t cookie;
|
|
|
|
s1= open(TCP_DEVICE, O_RDWR);
|
|
if (s1 == -1)
|
|
return s1;
|
|
r= ioctl(s1, NWIOGTCPCOOKIE, &cookie);
|
|
if (r == -1)
|
|
{
|
|
t_errno= errno;
|
|
close(s1);
|
|
errno= t_errno;
|
|
return -1;
|
|
}
|
|
r= ioctl(socket, NWIOTCPACCEPTTO, &cookie);
|
|
if (r == -1)
|
|
{
|
|
t_errno= errno;
|
|
close(s1);
|
|
errno= t_errno;
|
|
return -1;
|
|
}
|
|
if (address != NULL)
|
|
getpeername(s1, address, address_len);
|
|
return s1;
|
|
}
|