f0d81ffd1c
which included commits to RCS files with non-trunk default branches. git-svn-id: svn://10.65.10.50/trunk@5403 c028cbd2-c16b-5b4b-a496-9718f37d4682
269 lines
7.2 KiB
C
Executable File
269 lines
7.2 KiB
C
Executable File
/*---------------------------------------------------------------------------
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vms.h
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Generic VMS header file for Info-ZIP's Zip and UnZip.
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---------------------------------------------------------------------------*/
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#ifndef __vms_h
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#define __vms_h 1
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#ifndef __DESCRIP_LOADED
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#include <descrip.h>
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#endif
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#ifndef __STARLET_LOADED
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#include <starlet.h>
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#endif
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#ifndef __SYIDEF_LOADED
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#include <syidef.h>
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#endif
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#ifndef __ATRDEF_LOADED
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#include <atrdef.h>
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#endif
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#ifndef __FIBDEF_LOADED
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#include <fibdef.h>
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#endif
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#ifndef __IODEF_LOADED
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#include <iodef.h>
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#endif
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#if !defined(_RMS_H) && !defined(__RMS_LOADED)
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#include <rms.h>
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#endif
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#define ERR(s) !((s) & 1) /* VMS system error */
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#ifndef SYI$_VERSION
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#define SYI$_VERSION 4096 /* VMS 5.4 definition */
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#endif
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/*
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* Under Alpha (DEC C?), the FIB unions are declared as variant_unions.
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* FIBDEF.H includes the definition of __union, which we check
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* below to make sure we access the structure correctly.
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*/
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#define variant_union 1
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#if defined(fib$w_did) || (defined(__union) && (__union == variant_union))
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# define FIB$W_DID fib$w_did
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# define FIB$W_FID fib$w_fid
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# define FIB$L_ACCTL fib$l_acctl
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# define FIB$W_EXCTL fib$w_exctl
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#else
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# define FIB$W_DID fib$r_did_overlay.fib$w_did
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# define FIB$W_FID fib$r_fid_overlay.fib$w_fid
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# define FIB$L_ACCTL fib$r_acctl_overlay.fib$l_acctl
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# define FIB$W_EXCTL fib$r_exctl_overlay.fib$w_exctl
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#endif
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#undef variant_union
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struct EB_header /* Common header of extra block */
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{ ush tag;
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ush size;
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uch data[1];
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};
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#ifndef EB_HEADSIZE
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# define EB_HEADSIZE 4
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#endif
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/*------ Old style Info-ZIP extra field definitions -----*/
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#if (!defined(VAXC) && !defined(_RMS_H) && !defined(__RMS_LOADED))
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struct XAB { /* This definition may be skipped */
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unsigned char xab$b_cod;
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unsigned char xab$b_bln;
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short int xabdef$$_fill_1;
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char *xab$l_nxt;
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};
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#endif /* !VAXC && !_RMS_H && !__RMS_LOADED */
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#define BC_MASK 07 /* 3 bits for compression type */
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#define BC_STORED 0 /* Stored */
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#define BC_00 1 /* 0byte -> 0bit compression */
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#define BC_DEFL 2 /* Deflated */
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/*
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* Extra record format
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* ===================
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* signature (2 bytes) = 'I','M'
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* size (2 bytes)
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* block signature (4 bytes)
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* flags (2 bytes)
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* uncomprssed size(2 bytes)
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* reserved (4 bytes)
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* data ((size-12) bytes)
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* ....
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*/
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struct IZ_block /* Extra field block header structure */
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{
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ush sig;
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ush size;
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ulg bid;
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ush flags;
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ush length;
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ulg reserved;
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uch body[1]; /* The actual size is unknown */
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};
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/*
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* Extra field signature and block signatures
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*/
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#define IZ_SIGNATURE "IM"
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#define FABSIG "VFAB"
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#define XALLSIG "VALL"
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#define XFHCSIG "VFHC"
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#define XDATSIG "VDAT"
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#define XRDTSIG "VRDT"
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#define XPROSIG "VPRO"
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#define XKEYSIG "VKEY"
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#define XNAMSIG "VNAM"
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#define VERSIG "VMSV"
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/*
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* Block sizes
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*/
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#define FABL (cc$rms_fab.fab$b_bln)
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#define RABL (cc$rms_rab.rab$b_bln)
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#define XALLL (cc$rms_xaball.xab$b_bln)
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#define XDATL (cc$rms_xabdat.xab$b_bln)
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#define XFHCL (cc$rms_xabfhc.xab$b_bln)
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#define XKEYL (cc$rms_xabkey.xab$b_bln)
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#define XPROL (cc$rms_xabpro.xab$b_bln)
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#define XRDTL (cc$rms_xabrdt.xab$b_bln)
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#define XSUML (cc$rms_xabsum.xab$b_bln)
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#define EXTBSL 4 /* Block signature length */
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#define RESL 8 /* Reserved 8 bytes */
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#define EXTHL (EB_HEADSIZE+EXTBSL+RESL)
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typedef unsigned char byte;
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struct iosb
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{
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ush status;
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ush count;
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ulg spec;
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};
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/*------------ PKWARE extra block definitions ----------*/
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/* Structure of PKWARE extra header */
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#ifdef VMS_ZIP
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#if defined(__DECC) || defined(__DECCXX)
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#pragma __nostandard
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#endif /* __DECC || __DECCXX */
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#if defined(__DECC) || defined(__DECCXX)
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#pragma __member_alignment __save
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#pragma __nomember_alignment
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#endif /* __DECC || __DECCXX */
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#ifdef VMS_ORIGINAL_PK_LAYOUT
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/* The original order of ATR fields in the PKZIP VMS-extra field leads
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* to unaligned fields in the PK_info structure representing the
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* extra field layout. When compiled for Alpha AXP, this results in
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* some performance (and code size) penalty. It is not allowed to
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* apply structure padding, since this is explicitely forbidden in
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* the specification (APPNOTE.TXT) for the PK VMS extra field.
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*/
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struct PK_info
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{
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ush tag_ra; ush len_ra; byte ra[ATR$S_RECATTR];
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ush tag_uc; ush len_uc; byte uc[ATR$S_UCHAR];
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ush tag_jr; ush len_jr; byte jr[ATR$S_JOURNAL];
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ush tag_cd; ush len_cd; byte cd[ATR$S_CREDATE];
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ush tag_rd; ush len_rd; byte rd[ATR$S_REVDATE];
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ush tag_ed; ush len_ed; byte ed[ATR$S_EXPDATE];
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ush tag_bd; ush len_bd; byte bd[ATR$S_BAKDATE];
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ush tag_rn; ush len_rn; ush rn;
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ush tag_ui; ush len_ui; byte ui[ATR$S_UIC];
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ush tag_fp; ush len_fp; byte fp[ATR$S_FPRO];
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ush tag_rp; ush len_rp; byte rp[ATR$S_RPRO];
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};
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#else /* !VMS_ORIGINAL_PK_LAYOUT */
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/* The Info-ZIP support for the PK VMS extra field uses a reordered
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* field layout to achieve ``natural alignment'' of the PK_info structure
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* members whenever possible. This rearrangement does not violate the
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* PK's VMS extra field specification and should not break any ``well
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* behaving'' (PK)Unzip utility. (`Well behaving' means that (PK)Unzip
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* should use the field tag to identify the ATR$ field rather than
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* assuming a fixed order of ATR$ fields in the PK VMS extra field.)
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*/
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struct PK_info
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{
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ush tag_ra; ush len_ra; byte ra[ATR$S_RECATTR];
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ush tag_uc; ush len_uc; byte uc[ATR$S_UCHAR];
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ush tag_cd; ush len_cd; byte cd[ATR$S_CREDATE];
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ush tag_rd; ush len_rd; byte rd[ATR$S_REVDATE];
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ush tag_ed; ush len_ed; byte ed[ATR$S_EXPDATE];
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ush tag_bd; ush len_bd; byte bd[ATR$S_BAKDATE];
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ush tag_rn; ush len_rn; ush rn;
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ush tag_ui; ush len_ui; byte ui[ATR$S_UIC];
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ush tag_fp; ush len_fp; byte fp[ATR$S_FPRO];
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ush tag_rp; ush len_rp; byte rp[ATR$S_RPRO];
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ush tag_jr; ush len_jr; byte jr[ATR$S_JOURNAL];
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};
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#endif /* ?VMS_ORIGINAL_PK_LAYOUT */
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#if defined(__DECC) || defined(__DECCXX)
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#pragma __member_alignment __restore
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#endif /* __DECC || __DECCXX */
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#if defined(__DECC) || defined(__DECCXX)
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#pragma __standard
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#endif /* __DECC || __DECCXX */
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#endif /* VMS_ZIP */
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/* PKWARE "VMS" tag */
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#define PK_SIGNATURE 0x000C
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/* Total number of attributes to be saved */
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#define VMS_ATTR_COUNT 11
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#define VMS_MAX_ATRCNT 20
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struct PK_field
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{
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ush tag;
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ush size;
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byte value[1];
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};
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#define PK_FLDHDR_SIZE 4
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struct PK_header
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{
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ush tag;
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ush size;
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ulg crc32;
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byte data[1];
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};
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#define PK_HEADER_SIZE 8
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#ifdef VMS_ZIP
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/* File description structure for Zip low level I/O */
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struct ioctx
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{
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struct iosb iosb;
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long vbn;
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long size;
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long rest;
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int status;
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ush chan;
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ush chan_pad; /* alignment member */
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long acllen;
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uch aclbuf[ATR$S_READACL];
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struct PK_info PKi;
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};
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#endif /* VMS_ZIP */
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#endif /* !__vms_h */
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