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https://github.com/open-simh/simtools.git
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b70fc2f639
This version was on the VMS FREEWARE disk at some point. It shipped with the included .exes, though modern windows systems certainly don't support the direct access to SCSI DLL that's used.
190 lines
4.5 KiB
C
190 lines
4.5 KiB
C
/* Header.h v1.0 Definitions for ODS2 file headers */
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/* Small macro to swap words in a longword */
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#define swapw(w) (w[0]<<16 | w[1])
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/* File characteristic definitions */
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#define FCH$M_NOBACKUP 0x2
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#define FCH$M_CONTIGB 0x20
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#define FCH$M_LOCKED 0x40
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#define FCH$M_CONTIG 0x80
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#define FCH$M_DIRECTORY 0x2000
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#define FCH$M_MARKDEL 0x8000
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#define FCH$M_ERASE 0x20000
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/* File and record attribute definitions */
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#define FAT$C_FIXED 0x1
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#define FAT$C_VARIABLE 0x2
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#define FAT$C_VFC 0x3
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#define FAT$C_UNDEFINED 0x0
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#define FAT$C_STREAM 0x4
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#define FAT$C_STREAMLF 0x5
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#define FAT$C_STREAMCR 0x6
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#define FAT$C_DIRECT 0x3
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#define FAT$C_INDEXED 0x2
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#define FAT$C_RELATIVE 0x1
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#define FAT$C_SEQUENTIAL 0x0
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#define FAT$M_FORTRANCC 0x1
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#define FAT$M_IMPLIEDCC 0x2
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#define FAT$M_PRINTCC 0x4
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#define FAT$M_NOSPAN 0x8
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#define FAT$M_MSBRCW 0x10
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/* Type definitions for basic data types */
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typedef unsigned char u_byte;
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typedef unsigned short u_word;
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typedef unsigned int u_long;
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/* Structure of time */
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struct TIME {
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unsigned char time[8];
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};
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/* Definition of a UIC */
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struct UIC {
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u_word uic$w_mem;
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u_word uic$w_grp;
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};
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/* Definition for a FID */
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struct fiddef {
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u_word fid$w_num;
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u_word fid$w_seq;
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u_byte fid$b_rvn;
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u_byte fid$b_nmx;
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};
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/* RMS record definition */
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struct RECATTR {
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u_byte fat$b_rtype;
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u_byte fat$b_rattrib;
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u_word fat$w_rsize;
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u_word fat$l_hiblk[2];
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u_word fat$l_efblk[2];
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u_word fat$w_ffbyte;
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u_byte fat$b_bktsize;
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u_byte fat$b_vfcsize;
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u_word fat$w_maxrec;
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u_word fat$w_defext;
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u_word fat$w_gbc;
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u_byte fat$_UU0[8];
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u_word fat$w_versions;
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};
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/* Layout of the volume home block... */
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struct HOME {
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u_long hm2$l_homelbn;
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u_long hm2$l_alhomelbn;
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u_long hm2$l_altidxlbn;
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u_word hm2$w_struclev;
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u_word hm2$w_cluster;
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u_word hm2$w_homevbn;
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u_word hm2$w_alhomevbn;
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u_word hm2$w_altidxvbn;
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u_word hm2$w_ibmapvbn;
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u_long hm2$l_ibmaplbn;
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u_long hm2$l_maxfiles;
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u_word hm2$w_ibmapsize;
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u_word hm2$w_resfiles;
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u_word hm2$w_devtype;
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u_word hm2$w_rvn;
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u_word hm2$w_setcount;
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u_word hm2$w_volchar;
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struct UIC hm2$w_volowner;
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u_long hm2$l_reserved1;
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u_word hm2$w_protect;
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u_word hm2$w_fileprot;
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u_word hm2$w_reserved2;
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u_word hm2$w_checksum1;
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struct TIME hm2$q_credate;
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u_byte hm2$b_window;
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u_byte hm2$b_lru_lim;
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u_word hm2$w_extend;
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struct TIME hm2$q_retainmin;
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struct TIME hm2$q_retainmax;
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struct TIME hm2$q_revdate;
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u_byte hm2$r_min_class[20];
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u_byte hm2$r_max_class[20];
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u_byte hm2$t_reserved3[320];
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u_long hm2$l_serialnum;
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char hm2$t_strucname[12];
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char hm2$t_volname[12];
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char hm2$t_ownername[12];
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char hm2$t_format[12];
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u_word hm2$w_reserved4;
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u_word hm2$w_checksum2;
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};
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/* Structure of the header identification area */
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struct IDENT {
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char fi2$t_filename[20];
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u_word fi2$w_revision;
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struct TIME fi2$q_credate;
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struct TIME fi2$q_revdate;
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struct TIME fi2$q_expdate;
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struct TIME fi2$q_bakdate;
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char fi2$t_filenamext[66];
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};
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/* File header layout */
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struct HEAD {
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u_byte fh2$b_idoffset;
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u_byte fh2$b_mpoffset;
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u_byte fh2$b_acoffset;
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u_byte fh2$b_rsoffset;
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u_word fh2$w_seg_num;
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u_word fh2$w_struclev;
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struct fiddef fh2$w_fid;
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struct fiddef fh2$w_ext_fid;
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struct RECATTR fh2$w_recattr;
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u_long fh2$l_filechar;
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u_word fh2$w_reserved1;
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u_byte fh2$b_map_inuse;
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u_byte fh2$b_acc_mode;
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struct UIC fh2$l_fileowner;
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u_word fh2$w_fileprot;
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struct fiddef fh2$w_backlink;
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u_byte fh2$b_journal;
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u_byte fh2$b_ru_active;
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u_word fh2$w_reserved2;
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u_long fh2$l_highwater;
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u_byte fh2$b_reserved3[8];
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u_byte fh2$r_class_prot[20];
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u_byte fh2$r_restofit[402];
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u_word fh2$w_checksum;
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};
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/* Storage control block layout */
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struct SCB {
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u_word scb$w_struclev;
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u_word scb$w_cluster;
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u_long scb$l_volsize;
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u_long scb$l_blksize;
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u_long scb$l_sectors;
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u_long scb$l_tracks;
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u_long scb$l_cylinders;
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u_long scb$l_status;
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u_long scb$l_status2;
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u_word scb$w_writecnt;
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char scb$t_volockname[12];
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struct TIME scb$q_mounttime;
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u_word scb$w_backrev;
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u_long scb$q_genernum[2];
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char scb$b_reserved[446];
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u_word scb$w_checksum;
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};
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