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Diffstat (limited to 'Build/source/libs/zziplib/zziplib-0.13.60/zzip/memdisk.c')
-rw-r--r--Build/source/libs/zziplib/zziplib-0.13.60/zzip/memdisk.c466
1 files changed, 466 insertions, 0 deletions
diff --git a/Build/source/libs/zziplib/zziplib-0.13.60/zzip/memdisk.c b/Build/source/libs/zziplib/zziplib-0.13.60/zzip/memdisk.c
new file mode 100644
index 00000000000..dc00ea86508
--- /dev/null
+++ b/Build/source/libs/zziplib/zziplib-0.13.60/zzip/memdisk.c
@@ -0,0 +1,466 @@
+
+/*
+ * NOTE: this is part of libzzipmmapped (i.e. it is not libzzip).
+ * ==================
+ *
+ * The mem_disk cache will parse the central information of a zip archive
+ * and store it internally. One the one hand it allows to find files
+ * faster - no disk access is required and endian conversion is not
+ * needed. If zzip is compiled with zip extensions then it is about
+ * the only way to build maintainable code around the zip format.
+ *
+ * Note that 64bit support is almost entirely living in extension
+ * blocks as well as different character encodings and file access
+ * control bits that are mostly platform specific.
+ *
+ * Author:
+ * Guido Draheim <guidod@gmx.de>
+ *
+ * Copyright (c) 1999,2000,2001,2002,2003 Guido Draheim
+ * All rights reserved,
+ * use under the restrictions of the
+ * Lesser GNU General Public License
+ * or alternatively the restrictions
+ * of the Mozilla Public License 1.1
+ */
+#define _ZZIP_DISK_FILE_STRUCT 1
+
+#include <zzip/types.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+#include <zlib.h>
+#include <zzip/format.h>
+#include <zzip/fetch.h>
+#include <zzip/mmapped.h>
+#include <zzip/memdisk.h>
+#include <zzip/__fnmatch.h>
+
+#define ___ {
+#define ____ }
+
+static const char *error[] = {
+ "Ok",
+# define _zzip_mem_disk_open_fail 1
+ "zzip_mem_disk_open: zzip_disk_open did fail",
+# define _zzip_mem_disk_fdopen_fail 2
+ "zzip_mem_disk_fdopen: zzip_disk_mmap did fail"
+# define _zzip_mem_disk_buffer_fail 3
+ "zzip_mem_disk_buffer: zzip_disk_buffer did fail",
+ 0
+};
+
+#define ZZIP_EXTRA_zip64 0x0001
+typedef struct _zzip_extra_zip64
+{ /* ZIP64 extended information extra field */
+ zzip_byte_t z_datatype[2]; /* Tag for this "extra" block type */
+ zzip_byte_t z_datasize[2]; /* Size of this "extra" block */
+ zzip_byte_t z_usize[8]; /* Original uncompressed file size */
+ zzip_byte_t z_csize[8]; /* Size of compressed data */
+ zzip_byte_t z_offset[8]; /* Offset of local header record */
+ zzip_byte_t z_diskstart[4]; /* Number of the disk for file start */
+} zzip_extra_zip64;
+
+/*forward*/
+
+static zzip__new__ ZZIP_MEM_ENTRY *
+zzip_mem_entry_new(ZZIP_DISK * disk, ZZIP_DISK_ENTRY * entry);
+static void
+zzip_mem_entry_free(ZZIP_MEM_ENTRY * _zzip_restrict item);
+
+zzip__new__ ZZIP_MEM_DISK *
+zzip_mem_disk_new(void)
+{
+ return calloc(1, sizeof(ZZIP_MEM_DISK));
+}
+
+/** create new diskdir handle.
+ * wraps underlying zzip_disk_open. */
+zzip__new__ ZZIP_MEM_DISK *
+zzip_mem_disk_open(char *filename)
+{
+ ZZIP_DISK *disk = zzip_disk_open(filename);
+ if (! disk)
+ { perror(error[_zzip_mem_disk_open_fail]); return 0; }
+ ___ ZZIP_MEM_DISK *dir = zzip_mem_disk_new();
+ zzip_mem_disk_load(dir, disk);
+ return dir;
+ ____;
+}
+
+/** create new diskdir handle.
+ * wraps underlying zzip_disk_open. */
+zzip__new__ ZZIP_MEM_DISK *
+zzip_mem_disk_fdopen(int fd)
+{
+ ZZIP_DISK *disk = zzip_disk_mmap(fd);
+ if (! disk)
+ { perror(error[_zzip_mem_disk_fdopen_fail]); return 0; }
+ ___ ZZIP_MEM_DISK *dir = zzip_mem_disk_new();
+ zzip_mem_disk_load(dir, disk);
+ return dir;
+ ____;
+}
+
+/** create new diskdir handle.
+ * wraps underlying zzip_disk_buffer. */
+zzip__new__ ZZIP_MEM_DISK *
+zzip_mem_disk_buffer(char *buffer, size_t buflen)
+{
+ ZZIP_DISK *disk = zzip_disk_buffer(buffer, buflen);
+ if (! disk)
+ { perror(error[_zzip_mem_disk_buffer_fail]); return 0; }
+ ___ ZZIP_MEM_DISK *dir = zzip_mem_disk_new();
+ zzip_mem_disk_load(dir, disk);
+ return dir;
+ ____;
+}
+
+/** parse central dir.
+ * creates an internal copy of each entry converted to the local platform.
+ * returns: number of entries, or -1 on error (setting errno)
+ */
+long
+zzip_mem_disk_load(ZZIP_MEM_DISK * dir, ZZIP_DISK * disk)
+{
+ if (! dir || ! disk)
+ { errno=EINVAL; return -1; }
+ if (dir->list)
+ zzip_mem_disk_unload(dir);
+ ___ long count = 0;
+ ___ struct zzip_disk_entry *entry = zzip_disk_findfirst(disk);
+ for (; entry; entry = zzip_disk_findnext(disk, entry))
+ {
+ ZZIP_MEM_ENTRY *item = zzip_mem_entry_new(disk, entry);
+ if (! item)
+ goto error;
+ if (dir->last)
+ {
+ dir->last->zz_next = item; /* chain last */
+ } else
+ {
+ dir->list = item;
+ }
+ dir->last = item; /* to earlier */
+ count++;
+ }
+ ____;
+ dir->disk = disk;
+ return count;
+ ____;
+ error:
+ zzip_mem_disk_unload(dir);
+ return -1;
+}
+
+/** convert a zip disk entry to internal format.
+ * creates a new item parsing the information out of the various places
+ * in the zip archive. This is a good place to extend functionality if
+ * you have a project with extra requirements as you can push more bits
+ * right into the diskdir_entry for later usage in higher layers.
+ * returns: new item, or null on error (setting errno)
+ */
+zzip__new__ ZZIP_MEM_ENTRY *
+zzip_mem_entry_new(ZZIP_DISK * disk, ZZIP_DISK_ENTRY * entry)
+{
+ if (! disk || ! entry)
+ { errno=EINVAL; return 0; }
+ ___ ZZIP_MEM_ENTRY *item = calloc(1, sizeof(*item));
+ if (! item)
+ return 0; /* errno=ENOMEM; */
+ ___ struct zzip_file_header *header =
+ zzip_disk_entry_to_file_header(disk, entry);
+ /* there is a number of duplicated information in the file header
+ * or the disk entry block. Theoretically some part may be missing
+ * that exists in the other, ... but we will prefer the disk entry.
+ */
+ item->zz_comment = zzip_disk_entry_strdup_comment(disk, entry);
+ item->zz_name = zzip_disk_entry_strdup_name(disk, entry);
+ item->zz_data = zzip_file_header_to_data(header);
+ item->zz_flags = zzip_disk_entry_get_flags(entry);
+ item->zz_compr = zzip_disk_entry_get_compr(entry);
+ item->zz_mktime = zzip_disk_entry_get_mktime(entry);
+ item->zz_crc32 = zzip_disk_entry_get_crc32(entry);
+ item->zz_csize = zzip_disk_entry_get_csize(entry);
+ item->zz_usize = zzip_disk_entry_get_usize(entry);
+ item->zz_diskstart = zzip_disk_entry_get_diskstart(entry);
+ item->zz_filetype = zzip_disk_entry_get_filetype(entry);
+
+ { /* copy the extra blocks to memory as well */
+ int /* */ ext1 = zzip_disk_entry_get_extras(entry);
+ char *_zzip_restrict ptr1 = zzip_disk_entry_to_extras(entry);
+ int /* */ ext2 = zzip_file_header_get_extras(header);
+ char *_zzip_restrict ptr2 = zzip_file_header_to_extras(header);
+
+ if (ext1)
+ {
+ void *mem = malloc(ext1 + 2);
+ item->zz_ext[1] = mem;
+ memcpy(mem, ptr1, ext1);
+ ((char *) (mem))[ext1 + 0] = 0;
+ ((char *) (mem))[ext1 + 1] = 0;
+ }
+ if (ext2)
+ {
+ void *mem = malloc(ext2 + 2);
+ item->zz_ext[2] = mem;
+ memcpy(mem, ptr2, ext2);
+ ((char *) (mem))[ext2 + 0] = 0;
+ ((char *) (mem))[ext2 + 1] = 0;
+ }
+ }
+ {
+ /* override sizes/offsets with zip64 values for largefile support */
+ zzip_extra_zip64 *block = (zzip_extra_zip64 *)
+ zzip_mem_entry_extra_block(item, ZZIP_EXTRA_zip64);
+ if (block)
+ {
+ item->zz_usize = __zzip_get64(block->z_usize);
+ item->zz_csize = __zzip_get64(block->z_csize);
+ item->zz_offset = __zzip_get64(block->z_offset);
+ item->zz_diskstart = __zzip_get32(block->z_diskstart);
+ }
+ }
+ /* NOTE:
+ * All information from the central directory entry is now in memory.
+ * Effectivly that allows us to modify it and write it back to disk.
+ */
+ return item;
+ ____;
+ ____;
+}
+
+/* find an extra block for the given datatype code.
+ * We assume that the central directory has been preparsed to memory.
+ */
+ZZIP_EXTRA_BLOCK *
+zzip_mem_entry_extra_block(ZZIP_MEM_ENTRY * entry, short datatype)
+{
+ int i = 2;
+ while (1)
+ {
+ ZZIP_EXTRA_BLOCK *ext = entry->zz_ext[i];
+ if (ext)
+ {
+ while (*(short *) (ext->z_datatype))
+ {
+ if (datatype == zzip_extra_block_get_datatype(ext))
+ {
+ return ext;
+ }
+ ___ char *e = (char *) ext;
+ e += zzip_extra_block_headerlength;
+ e += zzip_extra_block_get_datasize(ext);
+ ext = (void *) e;
+ ____;
+ }
+ }
+ if (! i)
+ return 0;
+ i--;
+ }
+}
+
+void
+zzip_mem_entry_free(ZZIP_MEM_ENTRY * _zzip_restrict item)
+{
+ if (item)
+ {
+ /* *INDENT-OFF* */
+ if (item->zz_ext[0]) free (item->zz_ext[0]);
+ if (item->zz_ext[1]) free (item->zz_ext[1]);
+ if (item->zz_ext[2]) free (item->zz_ext[2]);
+ if (item->zz_comment) free (item->zz_comment);
+ if (item->zz_name) free (item->zz_name);
+ free (item);
+ /* *INDENT-ON* */
+ }
+}
+
+void
+zzip_mem_disk_unload(ZZIP_MEM_DISK * dir)
+{
+ ZZIP_MEM_ENTRY *item = dir->list;
+ while (item)
+ {
+ ZZIP_MEM_ENTRY *next = item->zz_next;
+ zzip_mem_entry_free(item);
+ item = next;
+ }
+ dir->list = dir->last = 0;
+ zzip_disk_close(dir->disk);
+ dir->disk = 0;
+}
+
+void
+zzip_mem_disk_close(ZZIP_MEM_DISK * _zzip_restrict dir)
+{
+ if (dir)
+ {
+ zzip_mem_disk_unload(dir);
+ zzip_disk_close(dir->disk);
+ free(dir);
+ }
+}
+
+#if 0
+static void
+foo(short zz_datatype)
+{
+ switch (zz_datatype)
+ {
+ /* *INDENT-OFF* */
+ case 0x0001: /* ZIP64 extended information extra field */
+ case 0x0007: /* AV Info */
+ case 0x0008: /* Reserved for future Unicode file name data (PFS) */
+ case 0x0009: /* OS/2 */
+ case 0x000a: /* NTFS */
+ case 0x000c: /* OpenVMS */
+ case 0x000d: /* Unix */
+ case 0x000e: /* Reserved for file stream and fork descriptors */
+ case 0x000f: /* Patch Descriptor */
+ case 0x0014: /* PKCS#7 Store for X.509 Certificates */
+ case 0x0015: /* X.509 Certificate ID and Signature for file */
+ case 0x0016: /* X.509 Certificate ID for Central Directory */
+ case 0x0017: /* Strong Encryption Header */
+ case 0x0018: /* Record Management Controls */
+ case 0x0019: /* PKCS#7 Encryption Recipient Certificate List */
+ case 0x0065: /* IBM S/390, AS/400 attributes - uncompressed */
+ case 0x0066: /* Reserved for IBM S/390, AS/400 attr - compressed */
+ case 0x07c8: /* Macintosh */
+ case 0x2605: /* ZipIt Macintosh */
+ case 0x2705: /* ZipIt Macintosh 1.3.5+ */
+ case 0x2805: /* ZipIt Macintosh 1.3.5+ */
+ case 0x334d: /* Info-ZIP Macintosh */
+ case 0x4341: /* Acorn/SparkFS */
+ case 0x4453: /* Windows NT security descriptor (binary ACL) */
+ case 0x4704: /* VM/CMS */
+ case 0x470f: /* MVS */
+ case 0x4b46: /* FWKCS MD5 (see below) */
+ case 0x4c41: /* OS/2 access control list (text ACL) */
+ case 0x4d49: /* Info-ZIP OpenVMS */
+ case 0x4f4c: /* Xceed original location extra field */
+ case 0x5356: /* AOS/VS (ACL) */
+ case 0x5455: /* extended timestamp */
+ case 0x554e: /* Xceed unicode extra field */
+ case 0x5855: /* Info-ZIP Unix (original, also OS/2, NT, etc) */
+ case 0x6542: /* BeOS/BeBox */
+ case 0x756e: /* ASi Unix */
+ case 0x7855: /* Info-ZIP Unix (new) */
+ case 0xfd4a: /* SMS/QDOS */
+ /* *INDENT-ON* */
+ }
+}
+#endif
+
+ZZIP_MEM_ENTRY *
+zzip_mem_disk_findfile(ZZIP_MEM_DISK * dir,
+ char *filename, ZZIP_MEM_ENTRY * after,
+ zzip_strcmp_fn_t compare)
+{
+ ZZIP_MEM_ENTRY *entry = (! after ? dir->list : after->zz_next);
+ if (! compare)
+ compare = (zzip_strcmp_fn_t) (strcmp);
+ for (; entry; entry = entry->zz_next)
+ {
+ if (! compare(filename, entry->zz_name))
+ {
+ return entry;
+ }
+ }
+ return 0;
+}
+
+ZZIP_MEM_ENTRY *
+zzip_mem_disk_findmatch(ZZIP_MEM_DISK * dir,
+ char *filespec, ZZIP_MEM_ENTRY * after,
+ zzip_fnmatch_fn_t compare, int flags)
+{
+ ZZIP_MEM_ENTRY *entry = (! after ? dir->list : after->zz_next);
+ if (! compare)
+ compare = (zzip_fnmatch_fn_t) _zzip_fnmatch;
+ for (; entry; entry = entry->zz_next)
+ {
+ if (! compare(filespec, entry->zz_name, flags))
+ {
+ return entry;
+ }
+ }
+ return 0;
+}
+
+zzip__new__ ZZIP_MEM_DISK_FILE *
+zzip_mem_entry_fopen(ZZIP_MEM_DISK * dir, ZZIP_MEM_ENTRY * entry)
+{
+ /* keep this in sync with zzip_disk_entry_fopen */
+ ZZIP_DISK_FILE *file = malloc(sizeof(ZZIP_MEM_DISK_FILE));
+ if (! file)
+ return file;
+ file->buffer = dir->disk->buffer;
+ file->endbuf = dir->disk->endbuf;
+ file->avail = zzip_mem_entry_usize(entry);
+
+ if (! file->avail || zzip_mem_entry_data_stored(entry))
+ { file->stored = zzip_mem_entry_to_data (entry); return file; }
+
+ file->stored = 0;
+ file->zlib.opaque = 0;
+ file->zlib.zalloc = Z_NULL;
+ file->zlib.zfree = Z_NULL;
+ file->zlib.avail_in = zzip_mem_entry_csize(entry);
+ file->zlib.next_in = zzip_mem_entry_to_data(entry);
+
+ if (! zzip_mem_entry_data_deflated(entry) ||
+ inflateInit2(&file->zlib, -MAX_WBITS) != Z_OK)
+ { free (file); return 0; }
+
+ return file;
+}
+
+zzip__new__ ZZIP_MEM_DISK_FILE *
+zzip_mem_disk_fopen(ZZIP_MEM_DISK * dir, char *filename)
+{
+ ZZIP_MEM_ENTRY *entry = zzip_mem_disk_findfile(dir, filename, 0, 0);
+ if (! entry)
+ return 0;
+ else
+ return zzip_mem_entry_fopen(dir, entry);
+}
+
+_zzip_size_t
+zzip_mem_disk_fread(void *ptr, _zzip_size_t size, _zzip_size_t nmemb,
+ ZZIP_MEM_DISK_FILE * file)
+{
+ return zzip_disk_fread(ptr, size, nmemb, file);
+}
+
+int
+zzip_mem_disk_fclose(ZZIP_MEM_DISK_FILE * file)
+{
+ return zzip_disk_fclose(file);
+}
+
+int
+zzip_mem_disk_feof(ZZIP_MEM_DISK_FILE * file)
+{
+ return zzip_disk_feof(file);
+}
+
+/* convert dostime of entry to unix time_t */
+long
+zzip_disk_entry_get_mktime(ZZIP_DISK_ENTRY * entry)
+{
+ uint16_t dostime = ZZIP_GET16(entry->z_dostime.time);
+ uint16_t dosdate = ZZIP_GET16(entry->z_dostime.date);
+ struct tm date;
+ date.tm_sec = (dostime) & 0x1F; /* bits 0..4 */
+ date.tm_min = (dostime >> 5) & 0x3F; /* bits 5..10 */
+ date.tm_hour = (dostime >> 11); /* bits 11..15 */
+ date.tm_mday = (dosdate) & 0x1F; /* bits 16..20 */
+ date.tm_mon = (dosdate >> 5) & 0xF; /* bits 21..24 */
+ date.tm_year = (dosdate >> 9) + 80; /* bits 25..31 */
+ return mktime(&date); /* well, unix has that function... */
+}