minix/lib/ip/connect.c

90 lines
1.8 KiB
C

#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <netinet/in.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_connect(int socket, const struct sockaddr *address,
socklen_t address_len, nwio_tcpconf_t *tcpconfp);
int connect(int socket, const struct sockaddr *address,
socklen_t address_len)
{
int r;
nwio_tcpconf_t tcpconf;
r= ioctl(socket, NWIOGTCPCONF, &tcpconf);
if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
{
if (r == -1)
{
/* Bad file descriptor */
return -1;
}
return _tcp_connect(socket, address, address_len, &tcpconf);
}
#if DEBUG
fprintf(stderr, "connect: not implemented for fd %d\n", socket);
#endif
errno= ENOSYS;
return -1;
}
static int _tcp_connect(int socket, const struct sockaddr *address,
socklen_t address_len, nwio_tcpconf_t *tcpconfp)
{
int r;
struct sockaddr_in *sinp;
nwio_tcpconf_t tcpconf;
nwio_tcpcl_t tcpcl;
if (address_len != sizeof(*sinp))
{
errno= EINVAL;
return -1;
}
sinp= (struct sockaddr_in *)address;
if (sinp->sin_family != AF_INET)
{
errno= EINVAL;
return -1;
}
tcpconf.nwtc_flags= NWTC_SET_RA | NWTC_SET_RP;
if ((tcpconfp->nwtc_flags & NWTC_LOCPORT_MASK) == NWTC_LP_UNSET)
tcpconf.nwtc_flags |= NWTC_LP_SEL;
tcpconf.nwtc_remaddr= sinp->sin_addr.s_addr;
tcpconf.nwtc_remport= sinp->sin_port;
if (ioctl(socket, NWIOSTCPCONF, &tcpconf) == -1)
{
int t_errno= errno;
fprintf(stderr, "connect(tcp) failed: %s\n", strerror(errno));
errno= t_errno;
return -1;
}
tcpcl.nwtcl_flags= 0;
r= ioctl(socket, NWIOTCPCONN, &tcpcl);
if (r == -1)
{
int t_errno= errno;
fprintf(stderr, "connect(tcp) failed: %s\n", strerror(errno));
errno= t_errno;
}
return r;
}