157 lines
6.0 KiB
C
157 lines
6.0 KiB
C
/*
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* Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#ifndef _MANIFEST_INFO_H
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#define _MANIFEST_INFO_H
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#include <sys/types.h>
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/*
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* Zip file header signatures
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*/
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#define SIGSIZ 4 /* size of all header signatures */
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#define LOCSIG 0x04034b50L /* "PK\003\004" */
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#define EXTSIG 0x08074b50L /* "PK\007\008" */
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#define CENSIG 0x02014b50L /* "PK\001\002" */
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#define ENDSIG 0x06054b50L /* "PK\005\006" */
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/*
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* Header sizes including signatures
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*/
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#define LOCHDR 30
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#define EXTHDR 16
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#define CENHDR 46
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#define ENDHDR 22
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/*
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* Header field access macros
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*/
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#define CH(b, n) (((unsigned char *)(b))[n])
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#define SH(b, n) (CH(b, n) | (CH(b, n+1) << 8))
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#define LG(b, n) (SH(b, n) | (SH(b, n+2) << 16))
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#define GETSIG(b) LG(b, 0)
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/*
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* Macros for getting local file (LOC) header fields
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*/
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#define LOCVER(b) SH(b, 4) /* version needed to extract */
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#define LOCFLG(b) SH(b, 6) /* general purpose bit flags */
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#define LOCHOW(b) SH(b, 8) /* compression method */
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#define LOCTIM(b) LG(b, 10) /* modification time */
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#define LOCCRC(b) LG(b, 14) /* crc of uncompressed data */
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#define LOCSIZ(b) LG(b, 18) /* compressed data size */
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#define LOCLEN(b) LG(b, 22) /* uncompressed data size */
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#define LOCNAM(b) SH(b, 26) /* filename length */
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#define LOCEXT(b) SH(b, 28) /* extra field length */
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/*
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* Macros for getting extra local (EXT) header fields
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*/
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#define EXTCRC(b) LG(b, 4) /* crc of uncompressed data */
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#define EXTSIZ(b) LG(b, 8) /* compressed size */
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#define EXTLEN(b) LG(b, 12) /* uncompressed size */
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/*
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* Macros for getting central directory header (CEN) fields
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*/
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#define CENVEM(b) SH(b, 4) /* version made by */
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#define CENVER(b) SH(b, 6) /* version needed to extract */
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#define CENFLG(b) SH(b, 8) /* general purpose bit flags */
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#define CENHOW(b) SH(b, 10) /* compression method */
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#define CENTIM(b) LG(b, 12) /* modification time */
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#define CENCRC(b) LG(b, 16) /* crc of uncompressed data */
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#define CENSIZ(b) LG(b, 20) /* compressed size */
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#define CENLEN(b) LG(b, 24) /* uncompressed size */
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#define CENNAM(b) SH(b, 28) /* length of filename */
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#define CENEXT(b) SH(b, 30) /* length of extra field */
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#define CENCOM(b) SH(b, 32) /* file comment length */
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#define CENDSK(b) SH(b, 34) /* disk number start */
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#define CENATT(b) SH(b, 36) /* internal file attributes */
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#define CENATX(b) LG(b, 38) /* external file attributes */
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#define CENOFF(b) LG(b, 42) /* offset of local header */
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/*
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* Macros for getting end of central directory header (END) fields
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*/
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#define ENDSUB(b) SH(b, 8) /* number of entries on this disk */
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#define ENDTOT(b) SH(b, 10) /* total number of entries */
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#define ENDSIZ(b) LG(b, 12) /* central directory size */
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#define ENDOFF(b) LG(b, 16) /* central directory offset */
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#define ENDCOM(b) SH(b, 20) /* size of zip file comment */
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/*
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* A comment of maximum length of 64kb can follow the END record. This
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* is the furthest the END record can be from the end of the file.
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*/
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#define END_MAXLEN (0xFFFF + ENDHDR)
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/*
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* Supported compression methods.
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*/
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#define STORED 0
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#define DEFLATED 8
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/*
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* Information from the CEN entry to inflate a file.
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*/
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typedef struct zentry { /* Zip file entry */
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size_t isize; /* size of inflated data */
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size_t csize; /* size of compressed data (zero if uncompressed) */
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off_t offset; /* position of compressed data */
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int how; /* compression method (if any) */
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} zentry;
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/*
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* Information returned from the Manifest file by the ParseManifest() routine.
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* Certainly (much) more could be returned, but this is the information
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* currently of interest to the C based Java utilities (particularly the
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* Java launcher).
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*/
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typedef struct manifest_info { /* Interesting fields from the Manifest */
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char *manifest_version; /* Manifest-Version string */
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char *main_class; /* Main-Class entry */
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char *jre_version; /* Appropriate J2SE release spec */
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char jre_restrict_search; /* Restricted JRE search */
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char *splashscreen_image_file_name; /* splashscreen image file */
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} manifest_info;
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/*
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* Attribute closure to provide to manifest_iterate.
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*/
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typedef void (*attribute_closure)(const char *name, const char *value,
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void *user_data);
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/*
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* Function prototypes.
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*/
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int JLI_ParseManifest(char *jarfile, manifest_info *info);
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void *JLI_JarUnpackFile(const char *jarfile, const char *filename,
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int *size);
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void JLI_FreeManifest(void);
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int JLI_ManifestIterate(const char *jarfile, attribute_closure ac,
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void *user_data);
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#endif /* _MANIFEST_INFO_H */
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