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Annotation of sys/compat/svr4/svr4_jioctl.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: svr4_jioctl.c,v 1.2 2002/03/14 01:26:51 millert Exp $  */
                      2:
                      3: /*
                      4:  * Copyright (c) 1997 Niklas Hallqvist
                      5:  * All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  * 3. The name of the author may not be used to endorse or promote products
                     16:  *    derived from this software without specific prior written permission
                     17:  *
                     18:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     19:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     20:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     21:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     22:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     23:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     24:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     25:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     26:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     27:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     28:  */
                     29:
                     30: /*
                     31:  * Deal with the "j" svr4 ioctls ("j" stands for "jerq", the first windowing
                     32:  * terminal).
                     33:  */
                     34:
                     35: #include <sys/types.h>
                     36: #include <sys/param.h>
                     37: #include <sys/errno.h>
                     38: #include <sys/file.h>
                     39: #include <sys/proc.h>
                     40: #include <sys/systm.h>
                     41: #include <sys/ttycom.h>
                     42:
                     43: #include <compat/svr4/svr4_ioctl.h>
                     44: #include <compat/svr4/svr4_jioctl.h>
                     45: #include <compat/svr4/svr4_util.h>
                     46:
                     47: int
                     48: svr4_jerq_ioctl(fp, p, retval, fd, cmd, data)
                     49:        struct file *fp;
                     50:        struct proc *p;
                     51:        register_t *retval;
                     52:        int fd;
                     53:        u_long cmd;
                     54:        caddr_t data;
                     55: {
                     56:        struct svr4_jwinsize jws;
                     57:        struct winsize ws;
                     58:        int error;
                     59:        int (*ctl)(struct file *, u_long,  caddr_t, struct proc *) =
                     60:            fp->f_ops->fo_ioctl;
                     61:
                     62:        switch (cmd) {
                     63:        case SVR4_JWINSIZE:
                     64:                error = (*ctl)(fp, TIOCGWINSZ, (caddr_t)&ws, p);
                     65:                if (error)
                     66:                        return (error);
                     67:                jws.bytesx = ws.ws_col;
                     68:                jws.bytesy = ws.ws_row;
                     69:                jws.bitsx = ws.ws_xpixel;
                     70:                jws.bitsy = ws.ws_ypixel;
                     71:                return (copyout(&jws, data, sizeof (jws)));
                     72:
                     73:        default:
                     74:                DPRINTF(("Unimplemented ioctl %lx\n", cmd));
                     75:                return (EINVAL);
                     76:        }
                     77: }