Annotation of sys/compat/svr4/svr4_ioctl.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: svr4_ioctl.c,v 1.12 2002/11/06 09:57:18 niklas Exp $ */
! 2: /* $NetBSD: svr4_ioctl.c,v 1.16 1996/04/11 12:54:41 christos Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1994 Christos Zoulas
! 6: * All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. The name of the author may not be used to endorse or promote products
! 17: * derived from this software without specific prior written permission
! 18: *
! 19: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 20: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 21: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 22: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 23: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 24: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 25: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 26: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 27: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 28: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 29: */
! 30:
! 31: #include <sys/param.h>
! 32: #include <sys/proc.h>
! 33: #include <sys/systm.h>
! 34: #include <sys/file.h>
! 35: #include <sys/filedesc.h>
! 36: #include <sys/ioctl.h>
! 37: #include <sys/termios.h>
! 38: #include <sys/tty.h>
! 39: #include <sys/socket.h>
! 40: #include <sys/mount.h>
! 41: #include <net/if.h>
! 42: #include <sys/malloc.h>
! 43:
! 44: #include <sys/syscallargs.h>
! 45:
! 46: #include <compat/svr4/svr4_types.h>
! 47: #include <compat/svr4/svr4_util.h>
! 48: #include <compat/svr4/svr4_signal.h>
! 49: #include <compat/svr4/svr4_syscallargs.h>
! 50: #include <compat/svr4/svr4_stropts.h>
! 51: #include <compat/svr4/svr4_ioctl.h>
! 52: #include <compat/svr4/svr4_jioctl.h>
! 53: #include <compat/svr4/svr4_termios.h>
! 54: #include <compat/svr4/svr4_ttold.h>
! 55: #include <compat/svr4/svr4_filio.h>
! 56: #include <compat/svr4/svr4_sockio.h>
! 57:
! 58: #ifdef DEBUG_SVR4
! 59: static void svr4_decode_cmd(u_long, char *, char *, int *, int *);
! 60: /*
! 61: * Decode an ioctl command symbolically
! 62: */
! 63: static void
! 64: svr4_decode_cmd(cmd, dir, c, num, argsiz)
! 65: u_long cmd;
! 66: char *dir, *c;
! 67: int *num, *argsiz;
! 68: {
! 69: if (cmd & SVR4_IOC_VOID)
! 70: *dir++ = 'V';
! 71: if (cmd & SVR4_IOC_IN)
! 72: *dir++ = 'R';
! 73: if (cmd & SVR4_IOC_OUT)
! 74: *dir++ = 'W';
! 75: *dir = '\0';
! 76: if (cmd & SVR4_IOC_INOUT)
! 77: *argsiz = (cmd >> 16) & 0xff;
! 78: else
! 79: *argsiz = -1;
! 80:
! 81: *c = (cmd >> 8) & 0xff;
! 82: *num = cmd & 0xff;
! 83: }
! 84: #endif
! 85:
! 86: int
! 87: svr4_sys_ioctl(p, v, retval)
! 88: register struct proc *p;
! 89: void *v;
! 90: register_t *retval;
! 91: {
! 92: struct svr4_sys_ioctl_args *uap = v;
! 93: struct file *fp;
! 94: struct filedesc *fdp;
! 95: u_long cmd;
! 96: int (*fun)(struct file *, struct proc *, register_t *,
! 97: int, u_long, caddr_t);
! 98: int error = 0;
! 99: #ifdef DEBUG_SVR4
! 100: char dir[4];
! 101: char c;
! 102: int num;
! 103: int argsiz;
! 104:
! 105: svr4_decode_cmd(SCARG(uap, com), dir, &c, &num, &argsiz);
! 106:
! 107: uprintf("svr4_ioctl(%d, _IO%s(%c, %d, %d), %p);\n", SCARG(uap, fd),
! 108: dir, c, num, argsiz, SCARG(uap, data));
! 109: #endif
! 110: fdp = p->p_fd;
! 111: cmd = SCARG(uap, com);
! 112:
! 113: if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
! 114: return EBADF;
! 115:
! 116: if ((fp->f_flag & (FREAD | FWRITE)) == 0)
! 117: return EBADF;
! 118:
! 119: switch (cmd & 0xff00) {
! 120: case SVR4_tIOC:
! 121: fun = svr4_ttold_ioctl;
! 122: break;
! 123:
! 124: case SVR4_TIOC:
! 125: fun = svr4_term_ioctl;
! 126: break;
! 127:
! 128: case SVR4_STR:
! 129: fun = svr4_stream_ioctl;
! 130: break;
! 131:
! 132: case SVR4_FIOC:
! 133: fun = svr4_fil_ioctl;
! 134: break;
! 135:
! 136: case SVR4_SIOC:
! 137: fun = svr4_sock_ioctl;
! 138: break;
! 139:
! 140: case SVR4_jIOC:
! 141: fun = svr4_jerq_ioctl;
! 142: break;
! 143:
! 144: case SVR4_XIOC:
! 145: /* We do not support those */
! 146: error = EINVAL;
! 147: goto out;
! 148:
! 149: default:
! 150: DPRINTF(("Unimplemented ioctl %lx\n", cmd));
! 151: error = 0; /* XXX: really ENOSYS */
! 152: goto out;
! 153: }
! 154: FREF(fp);
! 155: error = (*fun)(fp, p, retval, SCARG(uap, fd), cmd, SCARG(uap, data));
! 156: FRELE(fp);
! 157: out:
! 158: return (error);
! 159: }
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