/*
 * System call vectors. Since I (RIB) want to rewrite sockets as streams,
 * we have this level of indirection. Not a lot of overhead, since more of
 * the work is done via read/write/select directly.
 *
 * I'm now expanding this up to a higher level to separate the assorted
 * kernel/user space manipulations and global assumptions from the protocol
 * layers proper - AC.
 */

asmlinkage int sys_socketcall(int call, unsigned long *args)
{
 int er;
 switch(call)
 {
  case SYS_SOCKET:
   er=verify_area(VERIFY_READ, args, 3 * sizeof(long));
   if(er)
    return er;
   return(sock_socket(get_fs_long(args+0),
    get_fs_long(args+1),
    get_fs_long(args+2)));
  case SYS_BIND:
   er=verify_area(VERIFY_READ, args, 3 * sizeof(long));
   if(er)
    return er;
   return(sock_bind(get_fs_long(args+0),
    (struct sockaddr *)get_fs_long(args+1),
    get_fs_long(args+2)));
  case SYS_CONNECT:
   er=verify_area(VERIFY_READ, args, 3 * sizeof(long));
   if(er)
    return er;
   return(sock_connect(get_fs_long(args+0),
    (struct sockaddr *)get_fs_long(args+1),
    get_fs_long(args+2)));
  case SYS_LISTEN:
   er=verify_area(VERIFY_READ, args, 2 * sizeof(long));
   if(er)
    return er;
   return(sock_listen(get_fs_long(args+0),
    get_fs_long(args+1)));
  case SYS_ACCEPT:
   er=verify_area(VERIFY_READ, args, 3 * sizeof(long));
   if(er)
    return er;
   return(sock_accept(get_fs_long(args+0),
    (struct sockaddr *)get_fs_long(args+1),
    (int *)get_fs_long(args+2)));
  case SYS_GETSOCKNAME:
   er=verify_area(VERIFY_READ, args, 3 * sizeof(long));
   if(er)
    return er;
   return(sock_getsockname(get_fs_long(args+0),
    (struct sockaddr *)get_fs_long(args+1),
    (int *)get_fs_long(args+2)));
  case SYS_GETPEERNAME:
   er=verify_area(VERIFY_READ, args, 3 * sizeof(long));
   if(er)
    return er;
   return(sock_getpeername(get_fs_long(args+0),
    (struct sockaddr *)get_fs_long(args+1),
    (int *)get_fs_long(args+2)));
  case SYS_SOCKETPAIR:
   er=verify_area(VERIFY_READ, args, 4 * sizeof(long));
   if(er)
    return er;
   return(sock_socketpair(get_fs_long(args+0),
    get_fs_long(args+1),
    get_fs_long(args+2),
    (unsigned long *)get_fs_long(args+3)));
  case SYS_SEND:
   er=verify_area(VERIFY_READ, args, 4 * sizeof(unsigned long));
   if(er)
    return er;
   return(sock_send(get_fs_long(args+0),
    (void *)get_fs_long(args+1),
    get_fs_long(args+2),
    get_fs_long(args+3)));
  case SYS_SENDTO:
   er=verify_area(VERIFY_READ, args, 6 * sizeof(unsigned long));
   if(er)
    return er;
   return(sock_sendto(get_fs_long(args+0),
    (void *)get_fs_long(args+1),
    get_fs_long(args+2),
    get_fs_long(args+3),
    (struct sockaddr *)get_fs_long(args+4),
    get_fs_long(args+5)));
  case SYS_RECV:
   er=verify_area(VERIFY_READ, args, 4 * sizeof(unsigned long));
   if(er)
    return er;
   return(sock_recv(get_fs_long(args+0),
    (void *)get_fs_long(args+1),
    get_fs_long(args+2),
    get_fs_long(args+3)));
  case SYS_RECVFROM:
   er=verify_area(VERIFY_READ, args, 6 * sizeof(unsigned long));
   if(er)
    return er;
   return(sock_recvfrom(get_fs_long(args+0),
    (void *)get_fs_long(args+1),
    get_fs_long(args+2),
    get_fs_long(args+3),
    (struct sockaddr *)get_fs_long(args+4),
    (int *)get_fs_long(args+5)));
  case SYS_SHUTDOWN:
   er=verify_area(VERIFY_READ, args, 2* sizeof(unsigned long));
   if(er)
    return er;
   return(sock_shutdown(get_fs_long(args+0),
    get_fs_long(args+1)));
  case SYS_SETSOCKOPT:
   er=verify_area(VERIFY_READ, args, 5*sizeof(unsigned long));
   if(er)
    return er;
   return(sock_setsockopt(get_fs_long(args+0),
    get_fs_long(args+1),
    get_fs_long(args+2),
    (char *)get_fs_long(args+3),
    get_fs_long(args+4)));
  case SYS_GETSOCKOPT:
   er=verify_area(VERIFY_READ, args, 5*sizeof(unsigned long));
   if(er)
    return er;
   return(sock_getsockopt(get_fs_long(args+0),
    get_fs_long(args+1),
    get_fs_long(args+2),
    (char *)get_fs_long(args+3),
    (int *)get_fs_long(args+4)));
  default:
   return(-EINVAL);
 }
}