126 lines
2.7 KiB
C
126 lines
2.7 KiB
C
#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <net/gen/in.h>
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#include <net/gen/tcp.h>
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#include <net/gen/tcp_io.h>
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#include <net/gen/udp.h>
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#include <net/gen/udp_io.h>
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#define DEBUG 0
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static int _tcp_connect(int socket, const struct sockaddr *address,
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socklen_t address_len, nwio_tcpconf_t *tcpconfp);
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static int _udp_connect(int socket, const struct sockaddr *address,
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socklen_t address_len, nwio_udpopt_t *udpoptp);
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int connect(int socket, const struct sockaddr *address,
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socklen_t address_len)
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{
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int r;
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nwio_tcpconf_t tcpconf;
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nwio_udpopt_t udpopt;
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r= ioctl(socket, NWIOGTCPCONF, &tcpconf);
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if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
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{
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if (r == -1)
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{
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/* Bad file descriptor */
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return -1;
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}
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return _tcp_connect(socket, address, address_len, &tcpconf);
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}
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r= ioctl(socket, NWIOGUDPOPT, &udpopt);
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if (r != -1 || (errno != ENOTTY && errno != EBADIOCTL))
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{
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if (r == -1)
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{
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/* Bad file descriptor */
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return -1;
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}
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return _udp_connect(socket, address, address_len, &udpopt);
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}
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#if DEBUG
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fprintf(stderr, "connect: not implemented for fd %d\n", socket);
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#endif
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errno= ENOSYS;
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return -1;
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}
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static int _tcp_connect(int socket, const struct sockaddr *address,
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socklen_t address_len, nwio_tcpconf_t *tcpconfp)
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{
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int r;
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struct sockaddr_in *sinp;
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nwio_tcpconf_t tcpconf;
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nwio_tcpcl_t tcpcl;
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if (address_len != sizeof(*sinp))
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{
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errno= EINVAL;
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return -1;
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}
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sinp= (struct sockaddr_in *)address;
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if (sinp->sin_family != AF_INET)
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{
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errno= EINVAL;
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return -1;
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}
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tcpconf.nwtc_flags= NWTC_SET_RA | NWTC_SET_RP;
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if ((tcpconfp->nwtc_flags & NWTC_LOCPORT_MASK) == NWTC_LP_UNSET)
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tcpconf.nwtc_flags |= NWTC_LP_SEL;
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tcpconf.nwtc_remaddr= sinp->sin_addr.s_addr;
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tcpconf.nwtc_remport= sinp->sin_port;
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if (ioctl(socket, NWIOSTCPCONF, &tcpconf) == -1)
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return -1;
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tcpcl.nwtcl_flags= 0;
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r= ioctl(socket, NWIOTCPCONN, &tcpcl);
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return r;
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}
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static int _udp_connect(int socket, const struct sockaddr *address,
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socklen_t address_len, nwio_udpopt_t *udpoptp)
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{
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int r;
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struct sockaddr_in *sinp;
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nwio_udpopt_t udpopt;
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if (address == NULL)
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{
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/* Unset remote address */
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udpopt.nwuo_flags= NWUO_RP_ANY | NWUO_RA_ANY;
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r= ioctl(socket, NWIOSUDPOPT, &udpopt);
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return r;
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}
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if (address_len != sizeof(*sinp))
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{
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errno= EINVAL;
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return -1;
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}
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sinp= (struct sockaddr_in *)address;
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if (sinp->sin_family != AF_INET)
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{
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errno= EINVAL;
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return -1;
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}
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udpopt.nwuo_flags= NWUO_RP_SET | NWUO_RA_SET;
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if ((udpoptp->nwuo_flags & NWUO_LOCPORT_MASK) == NWUO_LP_ANY)
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udpopt.nwuo_flags |= NWUO_LP_SEL;
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udpopt.nwuo_remaddr= sinp->sin_addr.s_addr;
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udpopt.nwuo_remport= sinp->sin_port;
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r= ioctl(socket, NWIOSUDPOPT, &udpopt);
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return r;
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}
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