| 1 | /*
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| 2 | * Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved.
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| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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| 4 | *
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| 5 | * This code is free software; you can redistribute it and/or modify it
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| 6 | * under the terms of the GNU General Public License version 2 only, as
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| 7 | * published by the Free Software Foundation. Oracle designates this
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| 8 | * particular file as subject to the "Classpath" exception as provided
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| 9 | * by Oracle in the LICENSE file that accompanied this code.
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| 10 | *
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| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT
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| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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| 14 | * version 2 for more details (a copy is included in the LICENSE file that
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| 15 | * accompanied this code).
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License version
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| 18 | * 2 along with this work; if not, write to the Free Software Foundation,
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| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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| 20 | *
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| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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| 22 | * or visit www.oracle.com if you need additional information or have any
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| 23 | * questions.
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| 24 | */
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| 25 |
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| 26 | #ifndef _MANIFEST_INFO_H
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| 27 | #define _MANIFEST_INFO_H
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| 28 |
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| 29 | #include <sys/types.h>
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| 30 |
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| 31 | /*
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| 32 | * Zip file header signatures
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| 33 | */
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| 34 | #define SIGSIZ 4 /* size of all header signatures */
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| 35 | #define LOCSIG 0x04034b50L /* "PK\003\004" */
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| 36 | #define EXTSIG 0x08074b50L /* "PK\007\008" */
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| 37 | #define CENSIG 0x02014b50L /* "PK\001\002" */
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| 38 | #define ENDSIG 0x06054b50L /* "PK\005\006" */
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| 39 |
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| 40 | /*
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| 41 | * Header sizes including signatures
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| 42 | */
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| 43 | #define LOCHDR 30
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| 44 | #define EXTHDR 16
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| 45 | #define CENHDR 46
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| 46 | #define ENDHDR 22
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| 47 |
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| 48 | /*
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| 49 | * Header field access macros
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| 50 | */
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| 51 | #define CH(b, n) (((unsigned char *)(b))[n])
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| 52 | #define SH(b, n) (CH(b, n) | (CH(b, n+1) << 8))
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| 53 | #define LG(b, n) (SH(b, n) | (SH(b, n+2) << 16))
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| 54 | #define GETSIG(b) LG(b, 0)
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| 55 |
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| 56 | /*
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| 57 | * Macros for getting local file (LOC) header fields
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| 58 | */
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| 59 | #define LOCVER(b) SH(b, 4) /* version needed to extract */
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| 60 | #define LOCFLG(b) SH(b, 6) /* general purpose bit flags */
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| 61 | #define LOCHOW(b) SH(b, 8) /* compression method */
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| 62 | #define LOCTIM(b) LG(b, 10) /* modification time */
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| 63 | #define LOCCRC(b) LG(b, 14) /* crc of uncompressed data */
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| 64 | #define LOCSIZ(b) LG(b, 18) /* compressed data size */
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| 65 | #define LOCLEN(b) LG(b, 22) /* uncompressed data size */
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| 66 | #define LOCNAM(b) SH(b, 26) /* filename length */
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| 67 | #define LOCEXT(b) SH(b, 28) /* extra field length */
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| 68 |
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| 69 | /*
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| 70 | * Macros for getting extra local (EXT) header fields
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| 71 | */
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| 72 | #define EXTCRC(b) LG(b, 4) /* crc of uncompressed data */
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| 73 | #define EXTSIZ(b) LG(b, 8) /* compressed size */
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| 74 | #define EXTLEN(b) LG(b, 12) /* uncompressed size */
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| 75 |
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| 76 | /*
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| 77 | * Macros for getting central directory header (CEN) fields
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| 78 | */
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| 79 | #define CENVEM(b) SH(b, 4) /* version made by */
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| 80 | #define CENVER(b) SH(b, 6) /* version needed to extract */
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| 81 | #define CENFLG(b) SH(b, 8) /* general purpose bit flags */
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| 82 | #define CENHOW(b) SH(b, 10) /* compression method */
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| 83 | #define CENTIM(b) LG(b, 12) /* modification time */
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| 84 | #define CENCRC(b) LG(b, 16) /* crc of uncompressed data */
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| 85 | #define CENSIZ(b) LG(b, 20) /* compressed size */
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| 86 | #define CENLEN(b) LG(b, 24) /* uncompressed size */
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| 87 | #define CENNAM(b) SH(b, 28) /* length of filename */
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| 88 | #define CENEXT(b) SH(b, 30) /* length of extra field */
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| 89 | #define CENCOM(b) SH(b, 32) /* file comment length */
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| 90 | #define CENDSK(b) SH(b, 34) /* disk number start */
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| 91 | #define CENATT(b) SH(b, 36) /* internal file attributes */
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| 92 | #define CENATX(b) LG(b, 38) /* external file attributes */
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| 93 | #define CENOFF(b) LG(b, 42) /* offset of local header */
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| 94 |
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| 95 | /*
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| 96 | * Macros for getting end of central directory header (END) fields
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| 97 | */
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| 98 | #define ENDSUB(b) SH(b, 8) /* number of entries on this disk */
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| 99 | #define ENDTOT(b) SH(b, 10) /* total number of entries */
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| 100 | #define ENDSIZ(b) LG(b, 12) /* central directory size */
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| 101 | #define ENDOFF(b) LG(b, 16) /* central directory offset */
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| 102 | #define ENDCOM(b) SH(b, 20) /* size of zip file comment */
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| 103 |
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| 104 | /*
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| 105 | * A comment of maximum length of 64kb can follow the END record. This
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| 106 | * is the furthest the END record can be from the end of the file.
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| 107 | */
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| 108 | #define END_MAXLEN (0xFFFF + ENDHDR)
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| 109 |
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| 110 | /*
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| 111 | * Supported compression methods.
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| 112 | */
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| 113 | #define STORED 0
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| 114 | #define DEFLATED 8
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| 115 |
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| 116 | /*
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| 117 | * Information from the CEN entry to inflate a file.
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| 118 | */
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| 119 | typedef struct zentry { /* Zip file entry */
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| 120 | size_t isize; /* size of inflated data */
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| 121 | size_t csize; /* size of compressed data (zero if uncompressed) */
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| 122 | off_t offset; /* position of compressed data */
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| 123 | int how; /* compression method (if any) */
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| 124 | } zentry;
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| 125 |
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| 126 | /*
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| 127 | * Information returned from the Manifest file by the ParseManifest() routine.
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| 128 | * Certainly (much) more could be returned, but this is the information
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| 129 | * currently of interest to the C based Java utilities (particularly the
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| 130 | * Java launcher).
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| 131 | */
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| 132 | typedef struct manifest_info { /* Interesting fields from the Manifest */
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| 133 | char *manifest_version; /* Manifest-Version string */
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| 134 | char *main_class; /* Main-Class entry */
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| 135 | char *jre_version; /* Appropriate J2SE release spec */
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| 136 | char jre_restrict_search; /* Restricted JRE search */
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| 137 | char *splashscreen_image_file_name; /* splashscreen image file */
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| 138 | } manifest_info;
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| 139 |
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| 140 | /*
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| 141 | * Attribute closure to provide to manifest_iterate.
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| 142 | */
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| 143 | typedef void (*attribute_closure)(const char *name, const char *value,
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| 144 | void *user_data);
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| 145 |
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| 146 | /*
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| 147 | * Function prototypes.
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| 148 | */
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| 149 | int JLI_ParseManifest(char *jarfile, manifest_info *info);
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| 150 | void *JLI_JarUnpackFile(const char *jarfile, const char *filename,
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| 151 | int *size);
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| 152 | void JLI_FreeManifest(void);
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| 153 | int JLI_ManifestIterate(const char *jarfile, attribute_closure ac,
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| 154 | void *user_data);
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| 155 |
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| 156 | #endif /* _MANIFEST_INFO_H */
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