include/sys/eucioctl.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  23 /*        All Rights Reserved   */
  24
  25
  26 #ifndef _SYS_EUCIOCTL_H
  27 #define _SYS_EUCIOCTL_H
  28
  29 #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.4   */
  30
  31 #ifdef  __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 /*
  36  * /usr/include/sys/eucioctl.h:
  37  *
  38  *      Header for EUC width information to LD modules.
  39  */
  40
  41 #ifndef EUC_IOC
  42 #define EUC_IOC         (('E' | 128) << 8)
  43 #endif
  44 #define EUC_WSET        (EUC_IOC | 1)
  45 #define EUC_WGET        (EUC_IOC | 2)
  46 #define EUC_MSAVE       (EUC_IOC | 3)
  47 #define EUC_MREST       (EUC_IOC | 4)
  48 #define EUC_IXLOFF      (EUC_IOC | 5)
  49 #define EUC_IXLON       (EUC_IOC | 6)
  50 #define EUC_OXLOFF      (EUC_IOC | 7)
  51 #define EUC_OXLON       (EUC_IOC | 8)
  52
  53 /*
  54  * This structure should really be the same one as defined in "euc.h",
  55  * but we want to minimize the number of bytes sent downstream to each
  56  * module -- this should make it 8 bytes -- therefore, we take only the
  57  * info we need.  The major assumptions here are that no EUC character
  58  * set has a character width greater than 255 bytes, and that no EUC
  59  * character consumes more than 255 screen columns.  Let me know if this
  60  * is an unsafe assumption...
  61  */
  62
  63 struct eucioc {
  64         unsigned char eucw[4];
  65         unsigned char scrw[4];
  66 };
  67 typedef struct eucioc   eucioc_t;
  68
  69 /*
  70  * The following defines are for LD modules to broadcast the state of
  71  * their "icanon" bit.
  72  *
  73  * The message type is M_CTL; message block 1 has a data block containing
  74  * an "iocblk"; EUC_BCAST is put into the "ioc_cmd" field.  The "b_cont"
  75  * of the first message block points to a second message block.  The second
  76  * message block is type M_DATA; it contains 1 byte that is either EUC_B_RAW
  77  * or EUC_B_CANON depending on the state of the "icanon" bit.  EUC line
  78  * disciplines should take care to broadcast this information when they are
  79  * in multibyte character mode.
  80  */
  81
  82 #define EUC_BCAST       EUC_IOC|16
  83
  84 #define EUC_B_CANON     '\177'
  85 #define EUC_B_RAW       '\001'  /* MUST be non-zero! */
  86
  87 #ifdef  __cplusplus
  88 }
  89 #endif
  90
  91 #endif  /* _SYS_EUCIOCTL_H */