src/java.base/share/native/libjli/manifest_info.h
changeset 47216 71c04702a3d5
parent 29713 eeabfe673c97
child 49440 396ea30afbd5
child 56106 40e61db323c2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/native/libjli/manifest_info.h	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,192 @@
+/*
+ * Copyright (c) 2003, 2012, 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 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);
+int     JLI_ManifestIterate(const char *jarfile, attribute_closure ac,
+                void *user_data);
+
+#endif  /* _MANIFEST_INFO_H */