1 /* 2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #ifndef _MANIFEST_INFO_H 27 #define _MANIFEST_INFO_H 28 29 #include <sys/types.h> 30 31 /* 32 * Zip file header signatures 33 */ 34 #define SIGSIZ 4 /* size of all header signatures */ 35 #define LOCSIG 0x04034b50L /* "PK\003\004" */ 36 #define EXTSIG 0x08074b50L /* "PK\007\008" */ 37 #define CENSIG 0x02014b50L /* "PK\001\002" */ 38 #define ENDSIG 0x06054b50L /* "PK\005\006" */ 39 40 #define ZIP64_ENDSIG 0x06064b50L /* "PK\006\006" */ 41 #define ZIP64_LOCSIG 0x07064b50L /* "PK\006\007" */ 42 /* 43 * Header sizes including signatures 44 */ 45 #define LOCHDR 30 46 #define EXTHDR 16 47 #define CENHDR 46 48 #define ENDHDR 22 49 50 #define ZIP64_ENDHDR 56 // ZIP64 end header size 51 #define ZIP64_LOCHDR 20 // ZIP64 end loc header size 52 #define ZIP64_EXTHDR 24 // EXT header size 53 #define ZIP64_EXTID 1 // Extra field Zip64 header ID 54 55 #define ZIP64_MAGICVAL 0xffffffffLL 56 #define ZIP64_MAGICCOUNT 0xffff 57 58 /* 59 * Header field access macros 60 */ 61 #define CH(b, n) (((unsigned char *)(b))[n]) 62 #define SH(b, n) (CH(b, n) | (CH(b, n+1) << 8)) 63 #define LG(b, n) ((SH(b, n) | (SH(b, n+2) << 16)) &0xffffffffUL) 64 #define LL(b, n) (((jlong)LG(b, n)) | (((jlong)LG(b, n+4)) << 32)) 65 #define GETSIG(b) LG(b, 0) 66 67 /* 68 * Macros for getting local file (LOC) header fields 69 */ 70 #define LOCVER(b) SH(b, 4) /* version needed to extract */ 71 #define LOCFLG(b) SH(b, 6) /* general purpose bit flags */ 72 #define LOCHOW(b) SH(b, 8) /* compression method */ 73 #define LOCTIM(b) LG(b, 10) /* modification time */ 74 #define LOCCRC(b) LG(b, 14) /* crc of uncompressed data */ 75 #define LOCSIZ(b) LG(b, 18) /* compressed data size */ 76 #define LOCLEN(b) LG(b, 22) /* uncompressed data size */ 77 #define LOCNAM(b) SH(b, 26) /* filename length */ 78 #define LOCEXT(b) SH(b, 28) /* extra field length */ 79 80 /* 81 * Macros for getting extra local (EXT) header fields 82 */ 83 #define EXTCRC(b) LG(b, 4) /* crc of uncompressed data */ 84 #define EXTSIZ(b) LG(b, 8) /* compressed size */ 85 #define EXTLEN(b) LG(b, 12) /* uncompressed size */ 86 87 /* 88 * Macros for getting central directory header (CEN) fields 89 */ 90 #define CENVEM(b) SH(b, 4) /* version made by */ 91 #define CENVER(b) SH(b, 6) /* version needed to extract */ 92 #define CENFLG(b) SH(b, 8) /* general purpose bit flags */ 93 #define CENHOW(b) SH(b, 10) /* compression method */ 94 #define CENTIM(b) LG(b, 12) /* modification time */ 95 #define CENCRC(b) LG(b, 16) /* crc of uncompressed data */ 96 #define CENSIZ(b) LG(b, 20) /* compressed size */ 97 #define CENLEN(b) LG(b, 24) /* uncompressed size */ 98 #define CENNAM(b) SH(b, 28) /* length of filename */ 99 #define CENEXT(b) SH(b, 30) /* length of extra field */ 100 #define CENCOM(b) SH(b, 32) /* file comment length */ 101 #define CENDSK(b) SH(b, 34) /* disk number start */ 102 #define CENATT(b) SH(b, 36) /* internal file attributes */ 103 #define CENATX(b) LG(b, 38) /* external file attributes */ 104 #define CENOFF(b) LG(b, 42) /* offset of local header */ 105 106 /* 107 * Macros for getting end of central directory header (END) fields 108 */ 109 #define ENDSUB(b) SH(b, 8) /* number of entries on this disk */ 110 #define ENDTOT(b) SH(b, 10) /* total number of entries */ 111 #define ENDSIZ(b) LG(b, 12) /* central directory size */ 112 #define ENDOFF(b) LG(b, 16) /* central directory offset */ 113 #define ENDCOM(b) SH(b, 20) /* size of zip file comment */ 114 115 /* 116 * Macros for getting Zip64 end of central directory header fields 117 */ 118 #define ZIP64_ENDLEN(b) LL(b, 4) /* size of zip64 end of central dir */ 119 #define ZIP64_ENDVEM(b) SH(b, 12) /* version made by */ 120 #define ZIP64_ENDVER(b) SH(b, 14) /* version needed to extract */ 121 #define ZIP64_ENDNMD(b) LG(b, 16) /* number of this disk */ 122 #define ZIP64_ENDDSK(b) LG(b, 20) /* disk number of start */ 123 #define ZIP64_ENDTOD(b) LL(b, 24) /* total number of entries on this disk */ 124 #define ZIP64_ENDTOT(b) LL(b, 32) /* total number of entries */ 125 #define ZIP64_ENDSIZ(b) LL(b, 40) /* central directory size in bytes */ 126 #define ZIP64_ENDOFF(b) LL(b, 48) /* offset of first CEN header */ 127 128 /* 129 * Macros for getting Zip64 end of central directory locator fields 130 */ 131 #define ZIP64_LOCDSK(b) LG(b, 4) /* disk number start */ 132 #define ZIP64_LOCOFF(b) LL(b, 8) /* offset of zip64 end */ 133 #define ZIP64_LOCTOT(b) LG(b, 16) /* total number of disks */ 134 135 /* 136 * A comment of maximum length of 64kb can follow the END record. This 137 * is the furthest the END record can be from the end of the file. 138 */ 139 #define END_MAXLEN (0xFFFF + ENDHDR) 140 141 /* 142 * Supported compression methods. 143 */ 144 #define STORED 0 145 #define DEFLATED 8 146 147 /* 148 * Information from the CEN entry to inflate a file. 149 */ 150 typedef struct zentry { /* Zip file entry */ 151 size_t isize; /* size of inflated data */ 152 size_t csize; /* size of compressed data (zero if uncompressed) */ 153 jlong offset; /* position of compressed data */ 154 int how; /* compression method (if any) */ 155 } zentry; 156 157 /* 158 * Information returned from the Manifest file by the ParseManifest() routine. 159 * Certainly (much) more could be returned, but this is the information 160 * currently of interest to the C based Java utilities (particularly the 161 * Java launcher). 162 */ 163 typedef struct manifest_info { /* Interesting fields from the Manifest */ 164 char *manifest_version; /* Manifest-Version string */ 165 char *main_class; /* Main-Class entry */ 166 char *jre_version; /* Appropriate J2SE release spec */ 167 char jre_restrict_search; /* Restricted JRE search */ 168 char *splashscreen_image_file_name; /* splashscreen image file */ 169 } manifest_info; 170 171 /* 172 * Attribute closure to provide to manifest_iterate. 173 */ 174 typedef void (*attribute_closure)(const char *name, const char *value, 175 void *user_data); 176 177 /* 178 * Function prototypes. 179 */ 180 int JLI_ParseManifest(char *jarfile, manifest_info *info); 181 void *JLI_JarUnpackFile(const char *jarfile, const char *filename, 182 int *size); 183 void JLI_FreeManifest(void); 184 int JLI_ManifestIterate(const char *jarfile, attribute_closure ac, 185 void *user_data); 186 187 #endif /* _MANIFEST_INFO_H */ 188