minix/lib/ip/accept.c

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2005-07-27 13:57:59 +02:00
#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;
r= _tcp_accept(socket, address, address_len);
return r;
#if DEBUG
fprintf(stderr, "accept: not implemented for fd %d\n", socket);
#endif
errno= ENOSYS;
return -1;
}
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;
}