/* * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ #ifndef _MANIFEST_INFO_H #define _MANIFEST_INFO_H #include #include "jni.h" /* * Zip file header signatures */ #define SIGSIZ 4 /* size of all header signatures */ #define PKZIP_SIGNATURE_AT(p, b2, b3) \ (((p)[0] == 'P') & ((p)[1] == 'K') & ((p)[2] == b2) & ((p)[3] == b3)) #define CENSIG_AT(p) PKZIP_SIGNATURE_AT(p, 1, 2) #define LOCSIG_AT(p) PKZIP_SIGNATURE_AT(p, 3, 4) #define ENDSIG_AT(p) PKZIP_SIGNATURE_AT(p, 5, 6) #define EXTSIG_AT(p) PKZIP_SIGNATURE_AT(p, 7, 8) #define ZIP64_ENDSIG_AT(p) PKZIP_SIGNATURE_AT(p, 6, 6) #define ZIP64_LOCSIG_AT(p) PKZIP_SIGNATURE_AT(p, 6, 7) /* * Header sizes including signatures */ #define LOCHDR 30 #define EXTHDR 16 #define CENHDR 46 #define ENDHDR 22 #define ZIP64_ENDHDR 56 // ZIP64 end header size #define ZIP64_LOCHDR 20 // ZIP64 end loc header size #define ZIP64_EXTHDR 24 // EXT header size #define ZIP64_EXTID 1 // Extra field Zip64 header ID #define ZIP64_MAGICVAL 0xffffffffLL #define ZIP64_MAGICCOUNT 0xffff /* * Header field access macros */ #define CH(b, n) (((unsigned char *)(b))[n]) #define SH(b, n) (CH(b, n) | (CH(b, n+1) << 8)) #define LG(b, n) ((SH(b, n) | (SH(b, n+2) << 16)) &0xffffffffUL) #define LL(b, n) (((jlong)LG(b, n)) | (((jlong)LG(b, n+4)) << 32)) #define GETSIG(b) LG(b, 0) /* * Macros for getting local file (LOC) header fields */ #define LOCVER(b) SH(b, 4) /* version needed to extract */ #define LOCFLG(b) SH(b, 6) /* general purpose bit flags */ #define LOCHOW(b) SH(b, 8) /* compression method */ #define LOCTIM(b) LG(b, 10) /* modification time */ #define LOCCRC(b) LG(b, 14) /* crc of uncompressed data */ #define LOCSIZ(b) LG(b, 18) /* compressed data size */ #define LOCLEN(b) LG(b, 22) /* uncompressed data size */ #define LOCNAM(b) SH(b, 26) /* filename length */ #define LOCEXT(b) SH(b, 28) /* extra field length */ /* * Macros for getting extra local (EXT) header fields */ #define EXTCRC(b) LG(b, 4) /* crc of uncompressed data */ #define EXTSIZ(b) LG(b, 8) /* compressed size */ #define EXTLEN(b) LG(b, 12) /* uncompressed size */ /* * Macros for getting central directory header (CEN) fields */ #define CENVEM(b) SH(b, 4) /* version made by */ #define CENVER(b) SH(b, 6) /* version needed to extract */ #define CENFLG(b) SH(b, 8) /* general purpose bit flags */ #define CENHOW(b) SH(b, 10) /* compression method */ #define CENTIM(b) LG(b, 12) /* modification time */ #define CENCRC(b) LG(b, 16) /* crc of uncompressed data */ #define CENSIZ(b) LG(b, 20) /* compressed size */ #define CENLEN(b) LG(b, 24) /* uncompressed size */ #define CENNAM(b) SH(b, 28) /* length of filename */ #define CENEXT(b) SH(b, 30) /* length of extra field */ #define CENCOM(b) SH(b, 32) /* file comment length */ #define CENDSK(b) SH(b, 34) /* disk number start */ #define CENATT(b) SH(b, 36) /* internal file attributes */ #define CENATX(b) LG(b, 38) /* external file attributes */ #define CENOFF(b) LG(b, 42) /* offset of local header */ /* * Macros for getting end of central directory header (END) fields */ #define ENDNMD(b) SH(b, 4) /* number of this disk */ #define ENDDSK(b) SH(b, 6) /* disk number of start */ #define ENDSUB(b) SH(b, 8) /* number of entries on this disk */ #define ENDTOT(b) SH(b, 10) /* total number of entries */ #define ENDSIZ(b) LG(b, 12) /* central directory size */ #define ENDOFF(b) LG(b, 16) /* central directory offset */ #define ENDCOM(b) SH(b, 20) /* size of zip file comment */ /* * Macros for getting Zip64 end of central directory header fields */ #define ZIP64_ENDLEN(b) LL(b, 4) /* size of zip64 end of central dir */ #define ZIP64_ENDVEM(b) SH(b, 12) /* version made by */ #define ZIP64_ENDVER(b) SH(b, 14) /* version needed to extract */ #define ZIP64_ENDNMD(b) LG(b, 16) /* number of this disk */ #define ZIP64_ENDDSK(b) LG(b, 20) /* disk number of start */ #define ZIP64_ENDTOD(b) LL(b, 24) /* total number of entries on this disk */ #define ZIP64_ENDTOT(b) LL(b, 32) /* total number of entries */ #define ZIP64_ENDSIZ(b) LL(b, 40) /* central directory size in bytes */ #define ZIP64_ENDOFF(b) LL(b, 48) /* offset of first CEN header */ /* * Macros for getting Zip64 end of central directory locator fields */ #define ZIP64_LOCDSK(b) LG(b, 4) /* disk number start */ #define ZIP64_LOCOFF(b) LL(b, 8) /* offset of zip64 end */ #define ZIP64_LOCTOT(b) LG(b, 16) /* total number of disks */ /* * A comment of maximum length of 64kb can follow the END record. This * is the furthest the END record can be from the end of the file. */ #define END_MAXLEN (0xFFFF + ENDHDR) /* * Supported compression methods. */ #define STORED 0 #define DEFLATED 8 /* * Information from the CEN entry to inflate a file. */ typedef struct zentry { /* Zip file entry */ size_t isize; /* size of inflated data */ size_t csize; /* size of compressed data (zero if uncompressed) */ jlong offset; /* position of compressed data */ int how; /* compression method (if any) */ } zentry; /* * Information returned from the Manifest file by the ParseManifest() routine. * Certainly (much) more could be returned, but this is the information * currently of interest to the C based Java utilities (particularly the * Java launcher). */ typedef struct manifest_info { /* Interesting fields from the Manifest */ char *manifest_version; /* Manifest-Version string */ char *main_class; /* Main-Class entry */ char *jre_version; /* Appropriate J2SE release spec */ char jre_restrict_search; /* Restricted JRE search */ char *splashscreen_image_file_name; /* splashscreen image file */ } manifest_info; /* * Attribute closure to provide to manifest_iterate. */ typedef void (*attribute_closure)(const char *name, const char *value, void *user_data); /* * Function prototypes. */ int JLI_ParseManifest(char *jarfile, manifest_info *info); void *JLI_JarUnpackFile(const char *jarfile, const char *filename, int *size); void JLI_FreeManifest(void); JNIEXPORT int JNICALL JLI_ManifestIterate(const char *jarfile, attribute_closure ac, void *user_data); #endif /* _MANIFEST_INFO_H */