Added beta indication when update

More performance improvements

git-svn-id: https://server.scottellis.com.au/svn/mim_plugs@509 4f64403b-2f21-0410-a795-97e2b3489a10

1 files changed, 219 insertions, 0 deletions

diff --git a/updater/zbin/minizip/ioapi_mem.c b/updater/zbin/minizip/ioapi_mem.c
new file mode 100644
index 0000000..6f50c47
--- /dev/null
+++ b/updater/zbin/minizip/ioapi_mem.c
@@ -0,0 +1,219 @@
+/* ioapi_mem.c -- IO base function header for compress/uncompress .zip
+   files using zlib + zip or unzip API
+
+   This version of ioapi is designed to access memory rather than files.
+   We do use a region of memory to put data in to and take it out of. We do
+   not have auto-extending buffers and do not inform anyone else that the
+   data has been written. It is really intended for accessing a zip archive
+   embedded in an application such that I can write an installer with no
+   external files. Creation of archives has not been attempted, although
+   parts of the framework are present.
+
+   Based on Unzip ioapi.c version 0.22, May 19th, 2003
+
+   Copyright (C) 1998-2003 Gilles Vollant
+             (C) 2003 Justin Fletcher
+
+   This file is under the same license as the Unzip tool it is distributed
+   with.
+*/
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "zlib.h"
+#include "ioapi.h"
+
+
+
+voidpf ZCALLBACK fopen_mem_func OF((
+   voidpf opaque,
+   const char* filename,
+   int mode));
+
+uLong ZCALLBACK fread_mem_func OF((
+   voidpf opaque,
+   voidpf stream,
+   void* buf,
+   uLong size));
+
+uLong ZCALLBACK fwrite_mem_func OF((
+   voidpf opaque,
+   voidpf stream,
+   const void* buf,
+   uLong size));
+
+long ZCALLBACK ftell_mem_func OF((
+   voidpf opaque,
+   voidpf stream));
+
+long ZCALLBACK fseek_mem_func OF((
+   voidpf opaque,
+   voidpf stream,
+   uLong offset,
+   int origin));
+
+int ZCALLBACK fclose_mem_func OF((
+   voidpf opaque,
+   voidpf stream));
+
+int ZCALLBACK ferror_mem_func OF((
+   voidpf opaque,
+   voidpf stream));
+
+
+typedef struct ourmemory_s {
+  char *base; /* Base of the region of memory we're using */
+  uLong size; /* Size of the region of memory we're using */
+  uLong limit; /* Furthest we've written */
+  uLong cur_offset; /* Current offset in the area */
+} ourmemory_t;
+
+voidpf ZCALLBACK fopen_mem_func (opaque, filename, mode)
+   voidpf opaque;
+   const char* filename;
+   int mode;
+{
+    ourmemory_t *mem = malloc(sizeof(*mem));
+    if (mem==NULL)
+      return NULL; /* Can't allocate space, so failed */
+
+    /* Filenames are specified in the form :
+     *    <hex base of zip file>+<hex size of zip file>
+     * This may not work where memory addresses are longer than the
+     * size of an int and therefore may need addressing for 64bit
+     * architectures
+     */
+    if (sscanf(filename,"%p+%x",&mem->base,&mem->size)!=2)
+      return NULL;
+
+    if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+      mem->limit=0; /* When writing we start with 0 bytes written */
+    else
+      mem->limit=mem->size;
+
+    mem->cur_offset = 0;
+
+    return mem;
+}
+
+
+uLong ZCALLBACK fread_mem_func (opaque, stream, buf, size)
+   voidpf opaque;
+   voidpf stream;
+   void* buf;
+   uLong size;
+{
+    ourmemory_t *mem = (ourmemory_t *)stream;
+
+    if (size > mem->size - mem->cur_offset)
+      size = mem->size - mem->cur_offset;
+
+    memcpy(buf, mem->base + mem->cur_offset, size);
+    mem->cur_offset+=size;
+
+    return size;
+}
+
+
+uLong ZCALLBACK fwrite_mem_func (opaque, stream, buf, size)
+   voidpf opaque;
+   voidpf stream;
+   const void* buf;
+   uLong size;
+{
+    ourmemory_t *mem = (ourmemory_t *)stream;
+
+    if (size > mem->size - mem->cur_offset)
+      size = mem->size - mem->cur_offset;
+
+    memcpy(mem->base + mem->cur_offset, buf, size);
+    mem->cur_offset+=size;
+    if (mem->cur_offset > mem->limit)
+      mem->limit = mem->cur_offset;
+
+    return size;
+}
+
+long ZCALLBACK ftell_mem_func (opaque, stream)
+   voidpf opaque;
+   voidpf stream;
+{
+    ourmemory_t *mem = (ourmemory_t *)stream;
+
+    return mem->cur_offset;
+}
+
+long ZCALLBACK fseek_mem_func (opaque, stream, offset, origin)
+   voidpf opaque;
+   voidpf stream;
+   uLong offset;
+   int origin;
+{
+    ourmemory_t *mem = (ourmemory_t *)stream;
+    uLong new_pos;
+    switch (origin)
+    {
+    case ZLIB_FILEFUNC_SEEK_CUR :
+        new_pos = mem->cur_offset + offset;
+        break;
+    case ZLIB_FILEFUNC_SEEK_END :
+        new_pos = mem->limit + offset;
+        break;
+    case ZLIB_FILEFUNC_SEEK_SET :
+        new_pos = offset;
+        break;
+    default: return -1;
+    }
+
+    if (new_pos > mem->size)
+      return 1; /* Failed to seek that far */
+
+    if (new_pos > mem->limit)
+      memset(mem->base + mem->limit, 0, new_pos - mem->limit);
+
+    mem->cur_offset = new_pos;
+    return 0;
+}
+
+int ZCALLBACK fclose_mem_func (opaque, stream)
+   voidpf opaque;
+   voidpf stream;
+{
+    ourmemory_t *mem = (ourmemory_t *)stream;
+
+    /* Note that once we've written to the buffer we don't tell anyone
+       about it here. Probably the opaque handle could be used to inform
+       some other component of how much data was written.
+
+       This, and other aspects of writing through this interface, has
+       not been tested.
+     */
+
+    free (mem);
+    return 0;
+}
+
+int ZCALLBACK ferror_mem_func (opaque, stream)
+   voidpf opaque;
+   voidpf stream;
+{
+    ourmemory_t *mem = (ourmemory_t *)stream;
+    /* We never return errors */
+    return 0;
+}
+
+void fill_memory_filefunc (pzlib_filefunc_def)
+  zlib_filefunc_def* pzlib_filefunc_def;
+{
+    pzlib_filefunc_def->zopen_file = fopen_mem_func;
+    pzlib_filefunc_def->zread_file = fread_mem_func;
+    pzlib_filefunc_def->zwrite_file = fwrite_mem_func;
+    pzlib_filefunc_def->ztell_file = ftell_mem_func;
+    pzlib_filefunc_def->zseek_file = fseek_mem_func;
+    pzlib_filefunc_def->zclose_file = fclose_mem_func;
+    pzlib_filefunc_def->zerror_file = ferror_mem_func;
+    pzlib_filefunc_def->opaque = NULL;
+}