383 lines
11 KiB
C
383 lines
11 KiB
C
/*
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Copyright (c) 1990-2009 Info-ZIP. All rights reserved.
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See the accompanying file LICENSE, version 2009-Jan-02 or later
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(the contents of which are also included in zip.h) for terms of use.
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If, for some reason, all these files are missing, the Info-ZIP license
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also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
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*/
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/*---------------------------------------------------------------------------
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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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/* Workaround for broken header files of older DECC distributions
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* that are incompatible with the /NAMES=AS_IS qualifier. */
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#define sys$assign SYS$ASSIGN
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#define sys$bintim SYS$BINTIM
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#define sys$close SYS$CLOSE
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#define sys$connect SYS$CONNECT
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#define sys$create SYS$CREATE
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#define sys$dassgn SYS$DASSGN
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#define sys$extend SYS$EXTEND
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#define sys$getjpiw SYS$GETJPIW
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#define sys$numtim SYS$NUMTIM
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#define sys$open SYS$OPEN
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#define sys$parse SYS$PARSE
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#define sys$put SYS$PUT
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#define sys$qio SYS$QIO
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#define sys$qiow SYS$QIOW
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#define sys$read SYS$READ
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#define sys$rewind SYS$REWIND
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#define sys$search SYS$SEARCH
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#define sys$setdfprot SYS$SETDFPROT
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#define sys$synch SYS$SYNCH
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#define sys$wait SYS$WAIT
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#define sys$write SYS$WRITE
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#include <starlet.h>
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#endif /* ndef __STARLET_LOADED */
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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 in VAXC mode) and under `good old' VAXC, the FIB unions
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* are declared as variant_unions. DEC C (Alpha) in ANSI modes and third
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* party compilers which do not support `variant_union' define preprocessor
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* symbols to `hide' the "intermediate union/struct" names from the
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* programmer's API.
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* We check the presence of these defines and for DEC's FIBDEF.H defining
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* __union as variant_union 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$w_exctl
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# define FIB$W_NMCTL fib$w_nmctl
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#else
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# define FIB$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$w_exctl
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# define FIB$W_NMCTL fib$r_nmctl_overlay.fib$w_nmctl
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#endif
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#undef variant_union
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/* 2005-02-10 SMS. Copied NAM[L] macros here from Zip. */
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/* Define macros for use with either NAM or NAML. */
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#ifdef NAML$C_MAXRSS /* NAML is available (ODS5 support...) */
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# ifndef NAM_MAXRSS /* May have been defined before. */
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# define NAM_MAXRSS NAML$C_MAXRSS
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# endif
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# define NAM_STRUCT NAML
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# define FAB_OR_NAML(fab, nam) (nam)
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# define FAB_OR_NAML_DNA naml$l_long_defname
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# define FAB_OR_NAML_DNS naml$l_long_defname_size
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# define FAB_OR_NAML_FNA naml$l_long_filename
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# define FAB_OR_NAML_FNS naml$l_long_filename_size
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# define CC_RMS_NAM cc$rms_naml
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# define FAB_NAM fab$l_naml
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# define NAM_ESA naml$l_long_expand
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# define NAM_ESL naml$l_long_expand_size
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# define NAM_ESS naml$l_long_expand_alloc
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# define NAM_RSA naml$l_long_result
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# define NAM_RSL naml$l_long_result_size
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# define NAM_RSS naml$l_long_result_alloc
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# define NAM_DID naml$w_did
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# define NAM_DVI naml$t_dvi
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# define NAM_FID naml$w_fid
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# define NAM_FNB naml$l_fnb
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# define NAM_NOP naml$b_nop
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# define NAM_M_SYNCHK NAML$M_SYNCHK
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# define NAM_B_DEV naml$l_long_dev_size
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# define NAM_L_DEV naml$l_long_dev
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# define NAM_B_DIR naml$l_long_dir_size
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# define NAM_L_DIR naml$l_long_dir
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# define NAM_B_NAME naml$l_long_name_size
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# define NAM_L_NAME naml$l_long_name
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# define NAM_B_TYPE naml$l_long_type_size
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# define NAM_L_TYPE naml$l_long_type
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# define NAM_B_VER naml$l_long_ver_size
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# define NAM_L_VER naml$l_long_ver
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#else /* !NAML$C_MAXRSS */ /* NAML is not available. Use NAM. */
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# ifndef NAM_MAXRSS /* May have been defined before. */
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# define NAM_MAXRSS NAM$C_MAXRSS
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# endif
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# define NAM_STRUCT NAM
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# define FAB_OR_NAML(fab, nam) (fab)
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# define FAB_OR_NAML_DNA fab$l_dna
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# define FAB_OR_NAML_DNS fab$b_dns
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# define FAB_OR_NAML_FNA fab$l_fna
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# define FAB_OR_NAML_FNS fab$b_fns
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# define CC_RMS_NAM cc$rms_nam
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# define FAB_NAM fab$l_nam
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# define NAM_ESA nam$l_esa
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# define NAM_ESL nam$b_esl
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# define NAM_ESS nam$b_ess
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# define NAM_RSA nam$l_rsa
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# define NAM_RSL nam$b_rsl
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# define NAM_RSS nam$b_rss
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# define NAM_DID nam$w_did
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# define NAM_DVI nam$t_dvi
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# define NAM_FID nam$w_fid
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# define NAM_FNB nam$l_fnb
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# define NAM_NOP nam$b_nop
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# define NAM_M_SYNCHK NAM$M_SYNCHK
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# define NAM_B_DEV nam$b_dev
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# define NAM_L_DEV nam$l_dev
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# define NAM_B_DIR nam$b_dir
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# define NAM_L_DIR nam$l_dir
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# define NAM_B_NAME nam$b_name
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# define NAM_L_NAME nam$l_name
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# define NAM_B_TYPE nam$b_type
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# define NAM_L_TYPE nam$l_type
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# define NAM_B_VER nam$b_ver
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# define NAM_L_VER nam$l_ver
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#endif /* ?NAML$C_MAXRSS */
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struct EB_header /* Common header of extra block */
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{ ush tag;
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ush size;
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uch data[1];
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};
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#ifndef EB_HEADSIZE
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# define EB_HEADSIZE 4
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#endif
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/*------ Old style Info-ZIP extra field definitions -----*/
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#if (!defined(VAXC) && !defined(_RMS_H) && !defined(__RMS_LOADED))
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struct XAB { /* This definition may be skipped */
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unsigned char xab$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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#ifndef EB_IZVMS_BCMASK
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# define EB_IZVMS_BCMASK 07 /* 3 bits for compression type */
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#endif
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#ifndef EB_IZVMS_BCSTOR
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# define EB_IZVMS_BCSTOR 0 /* Stored */
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#endif
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#ifndef EB_IZVMS_BC00
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# define EB_IZVMS_BC00 1 /* 0byte -> 0bit compression */
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#endif
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#ifndef EB_IZVMS_BCDEFL
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# define EB_IZVMS_BCDEFL 2 /* Deflated */
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#endif
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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 explicitly forbidden in
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* the specification (APPNOTE.TXT) for the PK VMS extra field.
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*/
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typedef 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$S_RPRO];
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} PK_info_t;
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#else /* !VMS_ORIGINAL_PK_LAYOUT */
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/* The Info-ZIP support for the PK VMS extra field uses a reordered
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* field layout to achieve ``natural alignment'' of the PK_info structure
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* members whenever possible. This rearrangement does not violate the
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* PK's VMS extra field specification and should not break any ``well
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* behaving'' (PK)Unzip utility. (`Well behaving' means that (PK)Unzip
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* should use the field tag to identify the ATR$ 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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typedef 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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} PK_info_t;
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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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#endif /* !__vms_h */
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