db/field.h

   1 /*
   2  * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it would be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write the Free Software Foundation,
  16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  */
  18
  19 typedef enum fldt       {
  20         FLDT_AEXTNUM,
  21         FLDT_AGBLOCK,
  22         FLDT_AGBLOCKNZ,
  23         FLDT_AGF,
  24         FLDT_AGFL,
  25         FLDT_AGFL_CRC,
  26         FLDT_AGI,
  27         FLDT_AGINO,
  28         FLDT_AGINONN,
  29         FLDT_AGNUMBER,
  30         FLDT_ATTR,
  31         FLDT_ATTR_BLKINFO,
  32         FLDT_ATTR_LEAF_ENTRY,
  33         FLDT_ATTR_LEAF_HDR,
  34         FLDT_ATTR_LEAF_MAP,
  35         FLDT_ATTR_LEAF_NAME,
  36         FLDT_ATTR_NODE_ENTRY,
  37         FLDT_ATTR_NODE_HDR,
  38         FLDT_ATTR_SF_ENTRY,
  39         FLDT_ATTR_SF_HDR,
  40         FLDT_ATTRBLOCK,
  41         FLDT_ATTRSHORT,
  42         FLDT_BMAPBTA,
  43         FLDT_BMAPBTA_CRC,
  44         FLDT_BMAPBTAKEY,
  45         FLDT_BMAPBTAPTR,
  46         FLDT_BMAPBTAREC,
  47         FLDT_BMAPBTD,
  48         FLDT_BMAPBTD_CRC,
  49         FLDT_BMAPBTDKEY,
  50         FLDT_BMAPBTDPTR,
  51         FLDT_BMAPBTDREC,
  52         FLDT_BMROOTA,
  53         FLDT_BMROOTAKEY,
  54         FLDT_BMROOTAPTR,
  55         FLDT_BMROOTD,
  56         FLDT_BMROOTDKEY,
  57         FLDT_BMROOTDPTR,
  58         FLDT_BNOBT,
  59         FLDT_BNOBT_CRC,
  60         FLDT_BNOBTKEY,
  61         FLDT_BNOBTPTR,
  62         FLDT_BNOBTREC,
  63         FLDT_CEXTFLG,
  64         FLDT_CEXTLEN,
  65         FLDT_CFILEOFFA,
  66         FLDT_CFILEOFFD,
  67         FLDT_CFSBLOCK,
  68         FLDT_CHARNS,
  69         FLDT_CHARS,
  70         FLDT_CNTBT,
  71         FLDT_CNTBT_CRC,
  72         FLDT_CNTBTKEY,
  73         FLDT_CNTBTPTR,
  74         FLDT_CNTBTREC,
  75         FLDT_DEV,
  76         FLDT_DFILOFFA,
  77         FLDT_DFILOFFD,
  78         FLDT_DFSBNO,
  79         FLDT_DINODE_A,
  80         FLDT_DINODE_CORE,
  81         FLDT_DINODE_FMT,
  82         FLDT_DINODE_U,
  83         FLDT_DINODE_V3,
  84         FLDT_DIR2,
  85         FLDT_DIR2_BLOCK_TAIL,
  86         FLDT_DIR2_DATA_FREE,
  87         FLDT_DIR2_DATA_HDR,
  88         FLDT_DIR2_DATA_OFF,
  89         FLDT_DIR2_DATA_OFFNZ,
  90         FLDT_DIR2_DATA_UNION,
  91         FLDT_DIR2_FREE_HDR,
  92         FLDT_DIR2_INO4,
  93         FLDT_DIR2_INO8,
  94         FLDT_DIR2_INOU,
  95         FLDT_DIR2_LEAF_ENTRY,
  96         FLDT_DIR2_LEAF_HDR,
  97         FLDT_DIR2_LEAF_TAIL,
  98         FLDT_DIR2_SF_ENTRY,
  99         FLDT_DIR2_SF_HDR,
 100         FLDT_DIR2_SF_OFF,
 101         FLDT_DIR2SF,
 102         FLDT_DA_BLKINFO,
 103         FLDT_DA_NODE_ENTRY,
 104         FLDT_DA_NODE_HDR,
 105         FLDT_DIRBLOCK,
 106         FLDT_DISK_DQUOT,
 107         FLDT_DQBLK,
 108         FLDT_DQID,
 109         FLDT_DRFSBNO,
 110         FLDT_DRTBNO,
 111         FLDT_EXTLEN,
 112         FLDT_EXTNUM,
 113         FLDT_FSIZE,
 114         FLDT_INO,
 115         FLDT_INOBT,
 116         FLDT_INOBT_CRC,
 117         FLDT_INOBTKEY,
 118         FLDT_INOBTPTR,
 119         FLDT_INOBTREC,
 120         FLDT_INODE,
 121         FLDT_INODE_CRC,
 122         FLDT_INOFREE,
 123         FLDT_INT16D,
 124         FLDT_INT32D,
 125         FLDT_INT64D,
 126         FLDT_INT8D,
 127         FLDT_NSEC,
 128         FLDT_QCNT,
 129         FLDT_QWARNCNT,
 130         FLDT_SB,
 131         FLDT_TIME,
 132         FLDT_TIMESTAMP,
 133         FLDT_UINT1,
 134         FLDT_UINT16D,
 135         FLDT_UINT16O,
 136         FLDT_UINT16X,
 137         FLDT_UINT32D,
 138         FLDT_UINT32O,
 139         FLDT_UINT32X,
 140         FLDT_UINT64D,
 141         FLDT_UINT64O,
 142         FLDT_UINT64X,
 143         FLDT_UINT8D,
 144         FLDT_UINT8O,
 145         FLDT_UINT8X,
 146         FLDT_UUID,
 147         FLDT_ZZZ                        /* mark last entry */
 148 } fldt_t;
 149
 150 typedef int (*offset_fnc_t)(void *obj, int startoff, int idx);
 151 #define OI(o)   ((offset_fnc_t)(__psint_t)(o))
 152
 153 typedef int (*count_fnc_t)(void *obj, int startoff);
 154 #define CI(c)   ((count_fnc_t)(__psint_t)(c))
 155 #define C1      CI(1)
 156
 157 typedef struct field
 158 {
 159         char            *name;
 160         fldt_t          ftyp;
 161         offset_fnc_t    offset;
 162         count_fnc_t     count;
 163         int             flags;
 164         typnm_t         next;
 165 } field_t;
 166
 167 /*
 168  * flag values
 169  */
 170 #define FLD_ABASE1      1       /* field array base is 1 not 0 */
 171 #define FLD_SKIPALL     2       /* skip this field in an all-fields print */
 172 #define FLD_ARRAY       4       /* this field is an array */
 173 #define FLD_OFFSET      8       /* offset value is a function pointer */
 174 #define FLD_COUNT       16      /* count value is a function pointer */
 175
 176 typedef int (*size_fnc_t)(void *obj, int startoff, int idx);
 177 #define SI(s)   ((size_fnc_t)(__psint_t)(s))
 178
 179 typedef struct ftattr
 180 {
 181         fldt_t          ftyp;
 182         char            *name;
 183         prfnc_t         prfunc;
 184         char            *fmtstr;
 185         size_fnc_t      size;
 186         int             arg;
 187         adfnc_t         adfunc;
 188         const field_t   *subfld;
 189 } ftattr_t;
 190 extern const ftattr_t   ftattrtab[];
 191
 192 /*
 193  * arg values
 194  */
 195 #define FTARG_SKIPZERO  1       /* skip 0 words */
 196 #define FTARG_DONULL    2       /* make -1 words be "null" */
 197 #define FTARG_SKIPNULL  4       /* skip -1 words */
 198 #define FTARG_SIGNED    8       /* field value is signed */
 199 #define FTARG_SIZE      16      /* size field is a function */
 200 #define FTARG_SKIPNMS   32      /* skip printing names this time */
 201 #define FTARG_OKEMPTY   64      /* ok if this (union type) is empty */
 202
 203 extern int              bitoffset(const field_t *f, void *obj, int startoff,
 204                                   int idx);
 205 extern int              fcount(const field_t *f, void *obj, int startoff);
 206 extern const field_t    *findfield(char *name, const field_t *fields,
 207                                   void *obj, int startoff);
 208 extern int              fsize(const field_t *f, void *obj, int startoff,
 209                                   int idx);