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Diffstat (limited to 'launcher/manifest_info.h')
| -rw-r--r-- | launcher/manifest_info.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/launcher/manifest_info.h b/launcher/manifest_info.h new file mode 100644 index 0000000..44341f4 --- /dev/null +++ b/launcher/manifest_info.h @@ -0,0 +1,156 @@ +/* + * Copyright (c) 2003, 2005, 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 <sys/types.h> + +/* + * Zip file header signatures + */ +#define SIGSIZ 4 /* size of all header signatures */ +#define LOCSIG 0x04034b50L /* "PK\003\004" */ +#define EXTSIG 0x08074b50L /* "PK\007\008" */ +#define CENSIG 0x02014b50L /* "PK\001\002" */ +#define ENDSIG 0x06054b50L /* "PK\005\006" */ + +/* + * Header sizes including signatures + */ +#define LOCHDR 30 +#define EXTHDR 16 +#define CENHDR 46 +#define ENDHDR 22 + +/* + * 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)) +#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 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 */ + +/* + * 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) */ + off_t 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); +int JLI_ManifestIterate(const char *jarfile, attribute_closure ac, + void *user_data); + +#endif /* _MANIFEST_INFO_H */ |