#ifndef fallthrough /* "fallthrough" is in opus.h */ typedef unsigned char byte; typedef unsigned int word; #endif /****** General purpose Symbolic constants: *********/ #define TRUE 1 /* general purpose true truth value */ #define FALSE 0 /* general purpose false truth value */ #define ERROR -1 /* General "on error" return value */ #define OK 0 /* General "no error" return value */ #define EOS '\0' /* standard end of string */ #define MAX_PATH 78 /* max. length of full pathname */ #define MAX_DIR 66 /* max. length of full directory name */ #define FOSSIL 0x0001 /* running remotely */ #define MORE 0x0002 /* User wants More? prompts */ #define WANTS_MORE 0x0004 /* User has more in User.BBS */ #define VIEW 0x0008 /* View text files inside archive */ #define WATCH 0x0010 /* Use FOSSIL watchdog */ #define ARC 0x1000 /* ARC/PAK file */ #define ZIP 0x2000 /* PKZIP file */ #define ZOO 0x4000 /* ZOO File */ #define DWC 0x8000 /* DWC File */ /*----------------------------------------------------------------------*/ /* Information for file date conversion */ /*----------------------------------------------------------------------*/ #define MONTH_SHIFT 5 #define MONTH_MASK 0x0F #define DAY_MASK 0x1F #define YEAR_SHIFT 9 #define DOS_EPOCH 80 #define HOUR_SHIFT 11 #define HOUR_MASK 0x1F #define MINUTE_SHIFT 5 #define MINUTE_MASK 0x3F /*----------------------------------------------------------------------*/ /* archive list junk */ /*----------------------------------------------------------------------*/ #define ARCMARK 26 /* special archive marker */ #define ARCVER 10 /* highest compression code used */ #pragma pack(1) /* req'd by MSC to keep struct byte aligned */ struct heads /* archive entry header format */ { char mbrname[13]; /* file name */ long mbrsize; /* size of file in archive, bytes */ unsigned mbrdate; /* creation date */ unsigned mbrtime; /* creation time */ int mbrcrc; /* cyclic redundancy check */ long mbrlen; /* true file size, bytes */ }; #pragma pack() /* we now return to our regular programming */ /*--------------------------------------------------------------------------*/ /* Garbage for ZOO listing */ /*--------------------------------------------------------------------------*/ #define MAJOR_VER 1 /* needed to manipulate archive */ #define MINOR_VER 4 #define MAJOR_EXT_VER 1 /* needed to extract file */ #define MINOR_EXT_VER 0 #define CTRL_Z 26 #define ZOO_TAG ((unsigned long) 0xFDC4A7DC) /* A random choice */ #define TEXT "ZOO 1.50 Archive.\032" /* Header text for archive. */ #define SIZ_TEXT 20 /* Size of header text */ #define PATHSIZE 256 /* Max length of pathname */ #define FNAMESIZE 13 /* Size of DOS filename */ #define LFNAMESIZE 256 /* Size of long filename */ #define ROOTSIZE 8 /* Size of fname without extension */ #define EXTLEN 3 /* Size of extension */ #define FILE_LEADER "@)#(" /* Allowing location of file data */ #define SIZ_FLDR 5 /* 4 chars plus null */ #define MAX_PACK 1 /* max packing method we can handle */ #define BACKUP_EXT ".bak" /* extension of backup file */ #ifdef OOZ #define FIRST_ARG 2 #endif #ifdef ZOO #define FIRST_ARG 3 /* argument position of filename list */ #endif /* WARNING: Static initialization in zooadd.c or zooext.c depends on the order of fields in struct zoo_header */ struct zoo_header { char text[SIZ_TEXT]; /* archive header text */ unsigned long zoo_tag; /* identifies archives */ long zoo_start; /* where the archive's data starts */ long zoo_minus; /* for consistency checking of zoo_start */ char major_ver; char minor_ver; /* minimum version to extract all files */ }; /* Note: Microsoft C aligns data at word boundaries. So, to keep things compact, always try to pair up character fields. */ struct direntry { unsigned long zoo_tag; /* tag -- redundancy check */ char type; /* type of directory entry. always 1 for now */ char packing_method; /* 0 = no packing, 1 = normal LZW */ long next; /* pos'n of next directory entry */ long offset; /* position of this file */ unsigned int date; /* DOS format date */ unsigned int time; /* DOS format time */ unsigned int file_crc; /* CRC of this file */ long org_size; long size_now; char major_ver; char minor_ver; /* minimum version needed to extract */ char deleted; /* will be 1 if deleted, 0 if not */ char struc; /* file structure if any */ long comment; /* points to comment; zero if none */ unsigned int cmt_size; /* length of comment, 0 if none */ char fname[FNAMESIZE]; /* filename */ int var_dir_len; /* length of variable part of dir entry */ char tz; /* timezone where file was archived */ unsigned int dir_crc; /* CRC of directory entry */ /* fields for variable part of directory entry follow */ char namlen; /* length of long filename */ char dirlen; /* length of directory name */ char lfname[LFNAMESIZE]; /* long filename */ char dirname[PATHSIZE]; /* directory name */ int system_id; /* Filesystem ID */ }; /* Values for direntry.system_id */ #define SYSID_NIX 0 /* UNIX and similar filesystems */ #define SYSID_MS 1 /* MS-DOS filesystem */ #define SYSID_PORTABLE 2 /* Portable syntax */ /*-End of Zoo stuff---------------------------------------------------------*/ /*-Start of DWC stuff-------------------------------------------------------*/ #pragma pack(1) /* req'd by MSC to keep struct byte aligned */ /* ENTRY - information that is stored for each file in the DWC archive. */ struct dwc_entry { char name[13]; /* ... File name, Note: path is not saved here */ long size; /* ... Size of file before compression in bytes */ long time; /* ... Time stamp on file before added to archive */ long new_size; /* ... Size of compressed file */ long pos; /* ... Position of file in archive file */ char method; /* ... Method of compression used on file */ char sz_c; /* ... Size of comment added to file */ char sz_d; /* ... Size of directory name recorded on add */ unsigned crc; /* ... CRC value computed for this file */ }; /* ARCHIVE - information that is stored at the end of every achive. */ struct dwc_arc { unsigned size; /* ... Size of archive structure, future expansion*/ char ent_sz; /* ... Size of directory entry, future expansion */ char header[13]; /* ... Name of Header file to print on listings */ long time; /* ... Time stamp of last modification to archive */ long entries; /* ... Number of entries in archive */ char id[3]; /* ... the string "DWC" to identify archive */ }; #pragma pack() /*-End of DWC stuff---------------------------------------------------------*/ /*--------------------------------------------------------------------------*/ /* PKZIP (Phil Katz) */ /*--------------------------------------------------------------------------*/ struct ID_Hdr { word PK_ID; /* Always = PK = 0x4B50 */ word Head_Type; /* Identifiles which type of header this is */ }; #define LOCAL_HEADER 0x0403 /* PK local header 0x04034B50 */ #define CENTRAL_DIR 0x0201 /* "Central header"towards end of file */ #define CENTRAL_REC 0x0605 /* Last header in file */ struct Local_Hdr { word extract_ver; /* check program ver needed to unpack */ word GP_flags; /* General purpose flags, see below */ word compression; /* Compression method */ word mod_time; /* Modification time */ word mod_date; /* Modification date */ long crc; /* File's CRC */ long size_now; /* compressed size */ long real_size; /* un-compressed file size */ word name_length; /* FileName length */ word Xfield_length; /* Extra field length */ }; /* Filename follows, no null terminator! */ /* Extra field, no null terminator. */ /*--------------------------------------------------------------------------*/ /* Flags used with extract_ver */ /*--------------------------------------------------------------------------*/ #define IBM 0x0001 /* MS-DOS version of PKZIP */ #define AMIGA 0x0002 /* Amiga version of PKZIP */ #define VMS 0x0004 /* VMS version of PKZIP */ #define UNIX 0x0008 /* UNIX version of PKZIP (C) Bell Labs */ /*--------------------------------------------------------------------------*/ /* Flags used with general purpose flags */ /*--------------------------------------------------------------------------*/ #define ENCRYPT 0x0001 /* File is encrypted */ struct Central_File { word extract_ver; /* check program ver needed to unpack */ word GP_flags; /* General purpose flags, see below */ word compression; /* Compression method */ word mod_time; /* Modification time */ word mod_date; /* Modification date */ long crc; /* File's CRC */ long size_now; /* compressed size */ long real_size; /* un-compressed file size */ word name_length; /* FileName length */ word Xfield_length; /* Extra field length */ word comment_length; /* File comment length */ word disk_start; /* "Number of disk on which this file begins" */ word int_attrib; /* See internal flags below */ long ext_attrib; /* file's original attributes */ long rel_offset; /* Offset from start of disk/ZIP to local header */ }; /* File Name */ /* Extra Field */ /* Comment */ /*--------------------------------------------------------------------------*/ /* Internal Flags */ /*--------------------------------------------------------------------------*/ #define IS_TEXT 0x0001 /* This file is probably text */ struct Central_Directory { word disk_number; /* Number of this disk */ word center_disk; /* Number of disk where Central Dir starts */ word total_disk; /* Total # of entries on this disk */ word total_entry; /* Total # of files in this Zipfile */ long central_size; /* Size of the entire central directory */ long start_offset; /* */ word zip_cmnt_len; /* Length of comment for entire file */ }; /* Zipfile comment */ /*----------------------------------------------------------------------*/ /* COLORS for BIOS display */ /*----------------------------------------------------------------------*/ #define BLUE 1 #define GREEN 2 #define RED 4 #define INTENSE 8 #define BLUE_BACK 16 #define GREEN_BACK 32 #define RED_BACK 64 #define BLINK 128 #define CYAN BLUE|GREEN #define MAGENTA BLUE|RED #define YELLOW RED|GREEN #define WHITE RED|GREEN|BLUE #define WHITE_BACK BLUE_BACK|RED_BACK|GREEN_BACK #define REG WHITE #define REV WHITE_BACK #define BRIGHT INTENSE|WHITE #define FOSSIL_INT 0x14 /*---------------------------------------------------------------------*/ /* comm fossil line and modem status in AX. Status bits returned are: */ /*---------------------------------------------------------------------*/ /* In AH: */ #define RDA 0x0100 /* input data is available in buffer */ #define OVRN 0x0200 /* the input buffer has been overrun */ #define THRE 0x2000 /* room is available in output buffer */ #define TSRE 0x4000 /* output buffer is empty */ /* In AL: */ #define FRDY 0x0008 /* fossil ready - Always 1 */ #define DCD 0x0080 /* carrier detect */