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Changeset 68397 in vbox


Ignore:
Timestamp:
Aug 11, 2017 2:47:48 PM (7 years ago)
Author:
vboxsync
Message:

iprt/formats/udf.h: More descriptor structures.

File:
1 edited

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  • trunk/include/iprt/formats/udf.h

    r68385 r68397  
    139139 * UDF long allocation descriptor (@ecma167{4,14.14.2,116}).
    140140 */
     141#pragma pack(2)
    141142typedef struct UDFLONGAD
    142143{
    … …  
    155156    UDFLBADDR       Location;
    156157    /** Implementation use area. */
    157     uint8_t         abImplementationUse[6];
     158    union
     159    {
     160        /** Generic view. */
     161        uint8_t     ab[6];
     162        /** Used in FIDs.
     163         * See @udf260{2.3.10.1,66}, @udf260{2.3.4.3,58}.
     164         */
     165        struct
     166        {
     167            /** Flags (UDF_AD_IMP_USE_FLAGS_XXX).   */
     168            uint16_t    fFlags;
     169            /** Unique ID. */
     170            uint32_t    idUnique;
     171        } Fid;
     172    } ImplementationUse;
    158173} UDFLONGAD;
     174#pragma pack()
    159175AssertCompileSize(UDFLONGAD, 16);
    160176/** Pointer to an UDF long allocation descriptor. */
    … …  
    162178/** Pointer to a const UDF long allocation descriptor. */
    163179typedef UDFLONGAD const *PCUDFLONGAD;
     180
     181/** @name UDF_AD_IMP_USE_FLAGS_XXX - UDFLONGAD::ImplementationUse::Fid::fFlags values
     182 * See @udf260{2.3.10.1,66}.
     183 * @{ */
     184/** Set if erased and the extend is of the type UDF_AD_TYPE_ONLY_ALLOCATED. */
     185#define UDF_AD_IMP_USE_FLAGS_ERASED         UINT16_C(0x0001)
     186/** Valid mask.   */
     187#define UDF_AD_IMP_USE_FLAGS_VALID_MASK     UINT16_C(0x0001)
     188/** @} */
    164189
    165190/**
    … …  
    471496/** @name UDF_TAG_ID_XXX - UDF descriptor tag IDs.
    472497 * @{ */
    473 #define UDF_TAG_ID_PRIMARY_VOL_DESC                 UINT16_C(0x0001)
     498#define UDF_TAG_ID_PRIMARY_VOL_DESC                 UINT16_C(0x0001) /**< UDFPRIMARYVOLUMEDESC */
    474499#define UDF_TAG_ID_ANCHOR_VOLUME_DESC_PTR           UINT16_C(0x0002) /**< UDFANCHORVOLUMEDESCPTR */
    475 #define UDF_TAG_ID_VOLUME_DESC_PTR                  UINT16_C(0x0003)
    476 #define UDF_TAG_ID_IMPLEMENATION_USE_VOLUME_DESC    UINT16_C(0x0004)
    477 #define UDF_TAG_ID_PARTITION_DESC                   UINT16_C(0x0005)
    478 #define UDF_TAG_ID_LOGICAL_VOLUME_DESC              UINT16_C(0x0006)
    479 #define UDF_TAG_ID_UNALLOCATED_SPACE_DESC           UINT16_C(0x0007)
    480 #define UDF_TAG_ID_TERMINATING_DESC                 UINT16_C(0x0008)
    481 #define UDF_TAG_ID_LOGICAL_VOLUME_INTEGRITY_DESC    UINT16_C(0x0009)
     500#define UDF_TAG_ID_VOLUME_DESC_PTR                  UINT16_C(0x0003) /**< UDFVOLUMEDESCPTR */
     501#define UDF_TAG_ID_IMPLEMENATION_USE_VOLUME_DESC    UINT16_C(0x0004) /**< UDFIMPLEMENTATIONUSEVOLUMEDESC */
     502#define UDF_TAG_ID_PARTITION_DESC                   UINT16_C(0x0005) /**< UDFPARTITIONDESC */
     503#define UDF_TAG_ID_LOGICAL_VOLUME_DESC              UINT16_C(0x0006) /**< UDFLOGICALVOLUMEDESC */
     504#define UDF_TAG_ID_UNALLOCATED_SPACE_DESC           UINT16_C(0x0007) /**< UDFUNALLOCATEDSPACEDESC */
     505#define UDF_TAG_ID_TERMINATING_DESC                 UINT16_C(0x0008) /**< UDFTERMINATINGDESC */
     506#define UDF_TAG_ID_LOGICAL_VOLUME_INTEGRITY_DESC    UINT16_C(0x0009) /**< UDFLOGICALVOLINTEGRITYDESC */
     507#define UDF_TAG_ID_FILE_SET_DESC                    UINT16_C(0x0100)
     508#define UDF_TAG_ID_FILE_ID_DESC                     UINT16_C(0x0101)
     509#define UDF_TAG_ID_ALLOCATION_EXTENT_DESC           UINT16_C(0x0102)
     510#define UDF_TAG_ID_INDIRECT_ENTRY                   UINT16_C(0x0103)
     511#define UDF_TAG_ID_TERMINAL_ENTRY                   UINT16_C(0x0104)
     512#define UDF_TAG_ID_FILE_ENTRY                       UINT16_C(0x0105)
     513#define UDF_TAG_ID_EXTENDED_ATTRIB_HDR_DESC         UINT16_C(0x0106)
     514#define UDF_TAG_ID_UNALLOCATED_SPACE_ENTRY          UINT16_C(0x0107)
     515#define UDF_TAG_ID_SPACE_BITMAP_DESC                UINT16_C(0x0108)
     516#define UDF_TAG_ID_PARTITION_INTEGERITY_DESC        UINT16_C(0x0109)
     517#define UDF_TAG_ID_EXTENDED_FILE_ENTRY              UINT16_C(0x010a)
    482518/** @} */
    483519
    … …  
    815851
    816852/**
    817  * UDF terminating descriptor (@ecma167{3,10.9,62}).
     853 * UDF terminating descriptor (@ecma167{3,10.9,62}, @ecma167{4,14.2,62}).
    818854 */
    819855typedef struct UDFTERMINATINGDESC
    … …  
    869905#define UDF_LVID_TYPE_CLOSE         UINT32_C(0x00000001)
    870906/** @} */
     907
     908/**
     909 * UDF file set descriptor (FSD) (@ecma167{4,14.1,86}, @udf260{2.3.2,54}).
     910 */
     911typedef struct UDFFILESETDESC
     912{
     913    /** 0x000: The descriptor tag (UDF_TAG_ID_FILE_SET_DESC). */
     914    UDFTAG          Tag;
     915    /** 0x010: Recording timestamp. */
     916    UDFTIMESTAMP    RecordingTimestamp;
     917    /** 0x01c: Interchange level. */
     918    uint16_t        uInterchangeLevel;
     919    /** 0x01e: Maximum interchange level. */
     920    uint16_t        uMaxInterchangeLevel;
     921    /** 0x020: Character set bitmask (aka list).  Each bit correspond to a
     922     * character set number. */
     923    uint32_t        fCharacterSets;
     924    /** 0x024: Maximum character set bitmask (aka list). */
     925    uint32_t        fMaxCharacterSets;
     926    /** 0x028: File set number. */
     927    uint32_t        uFileSetNo;
     928    /** 0x02c: File set descriptor number. */
     929    uint32_t        uFileSetDescNo;
     930    /** 0x030: Logical volume identifier character set. */
     931    UDFCHARSPEC     LogicalVolumeIDCharSet;
     932    /** 0x070: Logical volume identifier string. */
     933    UDFDSTRING      achLogicalVolumeID[128];
     934    /** 0x0e0: File set character set. */
     935    UDFCHARSPEC     FileSetCharSet;
     936    /** 0x130: Identifier string for this file set. */
     937    UDFDSTRING      achFileSetID[32];
     938    /** 0x150: Names a root file containing copyright info.  Optional. */
     939    UDFDSTRING      achCopyrightFile[32];
     940    /** 0x170: Names a root file containing an abstract for the file set.  Optional. */
     941    UDFDSTRING      achAbstractFile[32];
     942    /** 0x190: Root directory information control block location (ICB).
     943     * An ICB is a sequence made up of UDF_TAG_ID_FILE_ENTRY,
     944     * UDF_TAG_ID_INDIRECT_ENTRY, and UDF_TAG_ID_TERMINAL_ENTRY descriptors. */
     945    UDFLONGAD       RootDirIcb;
     946    /** 0x1a0: Domain identifier (UDF_ENTITY_FSD_LVD_DOMAIN).  Optional. */
     947    UDFENTITYID     idDomain;
     948    /** 0x1c0: Next location with file set descriptors location, 0 if none. */
     949    UDFLONGAD       NextExtent;
     950    /** 0x1d0: Location of the system stream directory associated with the
     951     * file set.  Optional. */
     952    UDFLONGAD       SystemStreamDirIcb;
     953    /** 0x1e0: Reserved, MBZ. */
     954    uint8_t         abReserved[32];
     955} UDFFILESETDESC;
     956AssertCompileSize(UDFFILESETDESC, 512);
     957/** Pointer to an UDF file set descriptor. */
     958typedef UDFFILESETDESC *PUDFFILESETDESC;
     959/** Pointer to a const UDF file set descriptor. */
     960typedef UDFFILESETDESC const *PCUDFFILESETDESC;
     961
     962
     963/**
     964 * UDF file identifier descriptor (FID) (@ecma167{4,14.4,91}, @udf260{2.3.4,57}).
     965 */
     966typedef struct UDFFILEIDDESC
     967{
     968    /** 0x00: The descriptor tag (UDF_TAG_ID_FILE_ID_DESC). */
     969    UDFTAG          Tag;
     970    /** 0x10: File version number (1..32767).  Always set to 1. */
     971    uint16_t        uVersion;
     972    /** 0x12: File characteristics (UDF_FILE_FLAGS_XXX). */
     973    uint8_t         fFlags;
     974    /** 0x13: File identifier (name) length. */
     975    uint8_t         cbName;
     976    /** 0x14: Location of an information control block describing the file.
     977     * Can be null if marked deleted.  The implementation defined part of
     978     * this contains additional flags and a unique ID. */
     979    UDFLONGAD       Icb;
     980    /** 0x24: Length of implementation use field (in bytes).  This can be zero.
     981     *
     982     * It can be used to prevent the following FID from spanning a block
     983     * boundrary, in which case it will be 32 bytes or more, and the it will
     984     * start with an UDFENTITYID identifying who last wrote it.
     985     *
     986     * The latter padding fun is a requirement from write-once media. */
     987    uint16_t        cbImplementationUse;
     988    /** 0x26: Two variable sized fields followed by padding to make the
     989     * actual structure size 4 byte aligned.  The first field in an
     990     * implementation use field with length given by @a cbImplementationUse.
     991     * After that is a d-string field with the name of the file, length
     992     * specified by @a cbName. */
     993    uint8_t         abImplementationUse[RT_FLEXIBLE_ARRAY];
     994} UDFFILEIDDESC;
     995AssertCompileMemberOffset(UDFFILEIDDESC, fFlags,              0x12);
     996AssertCompileMemberOffset(UDFFILEIDDESC, cbName,              0x13);
     997AssertCompileMemberOffset(UDFFILEIDDESC, Icb,                 0x14);
     998AssertCompileMemberOffset(UDFFILEIDDESC, abImplementationUse, 0x26);
     999/** Pointer to an UDF file set descriptor   */
     1000typedef UDFFILEIDDESC *PUDFFILEIDDESC;
     1001
     1002/** Get the pointer to the name field. */
     1003#define UDFFILEIDDESC_2_NAME(a_pFid)        ((char *)(&(a_pFid)->abImplementationUse[(a_pFid)->cbImplementationUse]))
     1004/** Calculates the total size the size of a record.  */
     1005#define UDFFILEIDDESC_CALC_SIZE_EX(cbImplementationUse, cbName) \
     1006    RT_ALIGN_Z(RT_UOFFSETOF(UDFFILEIDDESC, abImplementationUse) + cbImplementationUse + cbName, 4)
     1007/** Gets the actual size of a record. */
     1008#define UDFFILEIDDESC_GET_SIZE(a_pFid)      UDFFILEIDDESC_CALC_SIZE_EX((a_pFid)->cbImplementationUse + (a_pFid)->cbName)
     1009
     1010/** @name UDF_FILE_FLAGS_XXX
     1011 * @{ */
     1012/** Existence - Hide the file from the user. */
     1013#define UDF_FILE_FLAGS_HIDDEN               UINT8_C(0x01)
     1014/** Directory - Indicates a directory as apposed to some kind of file or symlink or something  (0). */
     1015#define UDF_FILE_FLAGS_DIRECTORY            UINT8_C(0x02)
     1016/** Deleted - Indicate that the file has been deleted.  Assoicated descriptors may still be valid, though. */
     1017#define UDF_FILE_FLAGS_DELETED              UINT8_C(0x04)
     1018/** Parent - Indicate the ICB field refers to the parent directory (or mabye
     1019 * a file in case of streaming directory). */
     1020#define UDF_FILE_FLAGS_PARENT               UINT8_C(0x08)
     1021/** Metadata - Zero means user data, one means implementation specific metadata.
     1022 *  Only allowed used in stream directory. */
     1023#define UDF_FILE_FLAGS_METADATA             UINT8_C(0x10)
     1024/** Reserved bits that should be zer.   */
     1025#define UDF_FILE_FLAGS_RESERVED_MASK        UINT8_C(0xe0)
     1026/** @} */
     1027
     1028
     1029/**
     1030 * UDF allocation extent descriptor (@ecma167{4,14.5,93}, @udf256{2.3.11,67}).
     1031 */
     1032typedef struct UDFALLOCATIONEXTENTDESC
     1033{
     1034    /** 0x00: The descriptor tag (UDF_TAG_ID_ALLOCATION_EXTENT_DESC). */
     1035    UDFTAG          Tag;
     1036    /** 0x10: Previous allocation extent location (logical block in current
     1037     *  partition). */
     1038    uint32_t        offPrevExtent;
     1039    /** 0x14: Size of the following allocation descriptors (in bytes). */
     1040    uint32_t        cbAllocationDescriptors;
     1041    /** 0x18: Allocation descriptors.
     1042     * @todo verify format...  */
     1043    union
     1044    {
     1045        UDFSHORTAD  aShortADs[RT_FLEXIBLE_ARRAY_IN_NESTED_UNION];
     1046        UDFLONGAD   aLongADs[RT_FLEXIBLE_ARRAY_IN_NESTED_UNION];
     1047        UDFEXTAD    aExtADs[RT_FLEXIBLE_ARRAY_IN_NESTED_UNION];
     1048    } u;
     1049} UDFALLOCATIONEXTENTDESC;
     1050AssertCompileMemberOffset(UDFALLOCATIONEXTENTDESC, u, 0x18);
     1051/** Pointer to an UDF allocation extent descriptor. */
     1052typedef UDFALLOCATIONEXTENTDESC *PUDFALLOCATIONEXTENTDESC;
     1053/** Pointer to a const UDF allocation extent descriptor. */
     1054typedef UDFALLOCATIONEXTENTDESC const *PCUDFALLOCATIONEXTENTDESC;
     1055
     1056/**
     1057 * UDF information control block tag (@ecma167{4,14.6,93}, @udf260{2.3.5,60}).
     1058 */
     1059typedef struct UDFICBTAG
     1060{
     1061    /** 0x00: Number of direct entries in this ICB prior to this one. */
     1062    uint32_t        cEntiresBeforeThis;
     1063    /** 0x04: ICB hierarchy building strategy type (UDF_ICB_STRATEGY_TYPE_XXX). */
     1064    uint16_t        uStrategyType;
     1065    /** 0x06: Type specific parameters. */
     1066    uint8_t         abStrategyParams[2];
     1067    /** 0x08: Max number of direct and indirect entries that MAY be recorded in this ICB. */
     1068    uint16_t        cMaxEntries;
     1069    /** 0x0a: Reserved, MBZ. */
     1070    uint8_t         bReserved;
     1071    /** 0x0b: File type (UDF_FILE_TYPE_XXX). */
     1072    uint8_t         bFileType;
     1073    /** 0x0c: Parent ICB location. */
     1074    UDFLBADDR       ParentIcb;
     1075    /** 0x12: Parent ICB location (UDF_ICB_FLAGS_XXX). */
     1076    uint16_t        fFlags;
     1077} UDFICBTAG;
     1078AssertCompileSize(UDFICBTAG, 20);
     1079typedef UDFICBTAG *PUDFICBTAG;
     1080typedef UDFICBTAG const *PCUDFICBTAG;
     1081
     1082/** @name UDF_ICB_STRATEGY_TYPE_XXX - ICB hierarchy building strategies
     1083 *
     1084 * See @ecma167{4,14.6.2,94}, @udf260{6.6,121}
     1085 *
     1086 * @{ */
     1087/** Strategy not specified. */
     1088#define UDF_ICB_STRATEGY_TYPE_NOT_SPECIFIED     UINT16_C(0x0000)
     1089/** See @ecma167{4,A.2,129}. */
     1090#define UDF_ICB_STRATEGY_TYPE_1                 UINT16_C(0x0001)
     1091/** See @ecma167{4,A.3,131}. */
     1092#define UDF_ICB_STRATEGY_TYPE_2                 UINT16_C(0x0002)
     1093/** See @ecma167{4,A.4,131}. */
     1094#define UDF_ICB_STRATEGY_TYPE_3                 UINT16_C(0x0003)
     1095/** See @ecma167{4,A.5,131}. */
     1096#define UDF_ICB_STRATEGY_TYPE_4                 UINT16_C(0x0004)
     1097/** Defined by the UDF spec, see @udf260{6.6,121}. */
     1098#define UDF_ICB_STRATEGY_TYPE_4096              UINT16_C(0x1000)
     1099/** @} */
     1100
     1101/** @name UDF_ICB_FLAGS_XXX - ICB flags
     1102 *
     1103 * See @ecma167{4,14.6.8,95}, @udf260{2.3.5.4,61}
     1104 *
     1105 *  @{ */
     1106/** Using UDFSHORTAD. */
     1107#define UDF_ICB_FLAGS_AD_TYPE_SHORT             UINT16_C(0x0000)
     1108/** Using UDFLONGAD. */
     1109#define UDF_ICB_FLAGS_AD_TYPE_LONG              UINT16_C(0x0001)
     1110/** Using UDFEXTAD. */
     1111#define UDF_ICB_FLAGS_AD_TYPE_EXTENDED          UINT16_C(0x0002)
     1112/** Single descriptor. */
     1113#define UDF_ICB_FLAGS_AD_TYPE_SINGLE            UINT16_C(0x0003)
     1114/** Allocation type mask. */
     1115#define UDF_ICB_FLAGS_AD_TYPE_MASK              UINT16_C(0x0007)
     1116/** Set on directories that are sorted (according to @ecma167{4,8.6.1,78}).
     1117 * @note Directories are never sorted in UDF.  */
     1118#define UDF_ICB_FLAGS_SORTED_DIRECTORY          UINT16_C(0x0008)
     1119/** Not relocatable. */
     1120#define UDF_ICB_FLAGS_NON_RELOCATABLE           UINT16_C(0x0010)
     1121/** Indicate that the file needs backing up (DOS attribute). */
     1122#define UDF_ICB_FLAGS_ARCHIVE                   UINT16_C(0x0020)
     1123/** Set UID bit (UNIX). */
     1124#define UDF_ICB_FLAGS_SET_UID                   UINT16_C(0x0040)
     1125/** Set GID bit (UNIX). */
     1126#define UDF_ICB_FLAGS_SET_GID                   UINT16_C(0x0080)
     1127/** Set sticky bit (UNIX). */
     1128#define UDF_ICB_FLAGS_STICKY                    UINT16_C(0x0100)
     1129/** Extents are contiguous. */
     1130#define UDF_ICB_FLAGS_CONTIGUOUS                UINT16_C(0x0200)
     1131/** System bit, reserved for implementation use. */
     1132#define UDF_ICB_FLAGS_SYSTEM                    UINT16_C(0x0400)
     1133/** Data has been transformed in some way.
     1134 * @note UDF shall not set this bit.  */
     1135#define UDF_ICB_FLAGS_TRANSFORMED               UINT16_C(0x0800)
     1136/** Directory may contain multi-versioned files.
     1137 * @note UDF shall not set this bit.  */
     1138#define UDF_ICB_FLAGS_MULTI_VERSIONS            UINT16_C(0x1000)
     1139/** Is a stream in a stream directory. */
     1140#define UDF_ICB_FLAGS_STREAM                    UINT16_C(0x2000)
     1141/** Reserved mask. */
     1142#define UDF_ICB_FLAGS_RESERVED_MASK             UINT16_C(0xc000)
     1143/** @} */
     1144
     1145/** @name UDF_FILE_TYPE_XXX - File types
     1146 *
     1147 * See @ecma167{4,14.6.6,94}, @udf260{2.3.5.2,60}
     1148 *
     1149 *  @{ */
     1150#define UDF_FILE_TYPE_NOT_SPECIFIED             UINT8_C(0x00) /**< Not specified by this field. */
     1151#define UDF_FILE_TYPE_UNALLOCATED_SPACE_ENTRY   UINT8_C(0x01)
     1152#define UDF_FILE_TYPE_PARTITION_INTEGRITY_ENTRY UINT8_C(0x02)
     1153#define UDF_FILE_TYPE_INDIRECT_ENTRY            UINT8_C(0x03)
     1154#define UDF_FILE_TYPE_DIRECTORY                 UINT8_C(0x04)
     1155#define UDF_FILE_TYPE_REGULAR_FILE              UINT8_C(0x05)
     1156#define UDF_FILE_TYPE_BLOCK_DEVICE              UINT8_C(0x06)
     1157#define UDF_FILE_TYPE_CHARACTER_DEVICE          UINT8_C(0x07)
     1158#define UDF_FILE_TYPE_EXTENDED_ATTRIBUTES       UINT8_C(0x08)
     1159#define UDF_FILE_TYPE_FIFO                      UINT8_C(0x09)
     1160#define UDF_FILE_TYPE_SOCKET                    UINT8_C(0x0a)
     1161#define UDF_FILE_TYPE_TERMINAL_ENTRY            UINT8_C(0x0b)
     1162#define UDF_FILE_TYPE_SYMBOLIC_LINK             UINT8_C(0x0c)
     1163#define UDF_FILE_TYPE_STREAM_DIRECTORY          UINT8_C(0x0d)
     1164#define UDF_FILE_TYPE_VAT                       UINT8_C(0xf8)
     1165#define UDF_FILE_TYPE_REAL_TIME_FILE            UINT8_C(0xf9)
     1166#define UDF_FILE_TYPE_METADATA_FILE             UINT8_C(0xfa)
     1167#define UDF_FILE_TYPE_METADATA_MIRROR_FILE      UINT8_C(0xfb)
     1168#define UDF_FILE_TYPE_METADATA_BITMAP_FILE      UINT8_C(0xfc)
     1169/** @} */
     1170
     1171
     1172/**
     1173 * UDF indirect entry (@ecma167{4,14.7,96}).
     1174 */
     1175typedef struct UDFINDIRECTENTRY
     1176{
     1177    /** 0x00: The descriptor tag (UDF_TAG_ID_INDIRECT_ENTRY). */
     1178    UDFTAG          Tag;
     1179    /** 0x10: ICB Tag. */
     1180    UDFICBTAG       IcbTag;
     1181    /** 0x24: Indirect ICB location. */
     1182    UDFLONGAD       IndirectIcb;
     1183} UDFINDIRECTENTRY;
     1184AssertCompileSize(UDFINDIRECTENTRY, 52);
     1185/** Pointer to an UDF indirect entry. */
     1186typedef UDFINDIRECTENTRY *PUDFINDIRECTENTRY;
     1187/** Pointer to a const UDF indirect entry. */
     1188typedef UDFINDIRECTENTRY const *PCUDFINDIRECTENTRY;
     1189
     1190//#define UDF_TAG_ID_TERMINAL_ENTRY                   UINT16_C(0x0104)
     1191//#define UDF_TAG_ID_FILE_ENTRY                       UINT16_C(0x0105)
     1192//#define UDF_TAG_ID_EXTENDED_ATTRIB_HDR_DESC         UINT16_C(0x0106)
     1193//#define UDF_TAG_ID_UNALLOCATED_SPACE_ENTRY          UINT16_C(0x0107)
     1194//#define UDF_TAG_ID_SPACE_BITMAP_DESC                UINT16_C(0x0108)
     1195//#define UDF_TAG_ID_PARTITION_INTEGERITY_DESC        UINT16_C(0x0109)
     1196//#define UDF_TAG_ID_EXTENDED_FILE_ENTRY              UINT16_C(0x010a)
     1197
    8711198
    8721199
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