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-rw-r--r--backend/epub/Makefile.am37
-rw-r--r--backend/epub/epub-document.c1391
-rw-r--r--backend/epub/epub-document.h21
-rw-r--r--backend/epub/epubdocument.atril-backend.in4
-rw-r--r--backend/epub/minizip/Makefile.am14
-rw-r--r--backend/epub/minizip/ioapi.c247
-rw-r--r--backend/epub/minizip/ioapi.h208
-rw-r--r--backend/epub/minizip/unzip.c2125
-rw-r--r--backend/epub/minizip/unzip.h437
9 files changed, 4484 insertions, 0 deletions
diff --git a/backend/epub/Makefile.am b/backend/epub/Makefile.am
new file mode 100644
index 00000000..31dd455e
--- /dev/null
+++ b/backend/epub/Makefile.am
@@ -0,0 +1,37 @@
+SUBDIRS = minizip
+
+AM_CPPFLAGS = \
+ -I$(top_srcdir) \
+ -I$(top_srcdir)/libdocument \
+ -I$(srcdir)/minizip \
+ -DMATELOCALEDIR=\"$(datadir)/locale\" \
+ -DATRIL_COMPILATION \
+ $(BACKEND_CFLAGS) \
+ $(WARN_CXXFLAGS) \
+ $(WEBKIT_CFLAGS) \
+ $(DISABLE_DEPRECATED)
+
+backend_LTLIBRARIES = libepubdocument.la
+
+libepubdocument_la_SOURCES = \
+ epub-document.c \
+ epub-document.h
+
+libepubdocument_la_LDFLAGS = $(BACKEND_LIBTOOL_FLAGS)
+libepubdocument_la_LIBADD = \
+ $(top_builddir)/libdocument/libatrildocument.la \
+ minizip/libminizip.la \
+ $(WEBKIT_LIBS) \
+ $(BACKEND_LIBS)
+
+
+backend_in_files = epubdocument.atril-backend.in
+backend_DATA = $(backend_in_files:.atril-backend.in=.atril-backend)
+
+EXTRA_DIST = $(backend_in_files)
+
+CLEANFILES = $(backend_DATA)
+
+@EV_INTLTOOL_ATRIL_BACKEND_RULE@
+
+-include $(top_srcdir)/git.mk
diff --git a/backend/epub/epub-document.c b/backend/epub/epub-document.c
new file mode 100644
index 00000000..d0dce118
--- /dev/null
+++ b/backend/epub/epub-document.c
@@ -0,0 +1,1391 @@
+/* this file is part of atril, a mate document viewer
+ *
+ * Copyright (C) 2014 Avishkar Gupta
+ *
+ * Author:
+ * Avishkar Gupta <[email protected]>
+ *
+ * Atril is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Atril 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "epub-document.h"
+#include "ev-file-helpers.h"
+#include "unzip.h"
+#include "ev-document-thumbnails.h"
+#include "ev-document-find.h"
+#include "ev-document-links.h"
+#include "ev-document-misc.h"
+#include <libxml/parser.h>
+#include <libxml/xmlmemory.h>
+#include <libxml/HTMLparser.h>
+#include <config.h>
+
+#include <glib/gi18n.h>
+#include <glib/gstdio.h>
+
+#include <gtk/gtk.h>
+
+/*For strcasestr(),strstr()*/
+#include <string.h>
+
+typedef enum _xmlParseReturnType
+{
+ XML_ATTRIBUTE,
+ XML_KEYWORD
+}xmlParseReturnType;
+
+typedef struct _contentListNode {
+ gchar* key ;
+ gchar* value ;
+ gint index ;
+}contentListNode;
+
+typedef struct _linknode {
+ gchar *pagelink;
+ gchar *linktext;
+ guint page;
+}linknode;
+
+typedef struct _EpubDocumentClass EpubDocumentClass;
+
+struct _EpubDocumentClass
+{
+ EvDocumentClass parent_class;
+};
+
+struct _EpubDocument
+{
+ EvDocument parent_instance;
+ /*Stores the path to the source archive*/
+ gchar* archivename ;
+ /*Stores the path of the directory where we unzipped the epub*/
+ gchar* tmp_archive_dir ;
+ /*Stores the contentlist in a sorted manner*/
+ GList* contentList ;
+ /* A variable to hold our epubDocument for unzipping*/
+ unzFile epubDocument ;
+ /*The (sub)directory that actually houses the document*/
+ gchar* documentdir;
+ /*Stores the table of contents*/
+ GList *index;
+ /*Document title, for the sidebar links*/
+ gchar *docTitle;
+};
+
+static void epub_document_document_thumbnails_iface_init (EvDocumentThumbnailsInterface *iface);
+static void epub_document_document_find_iface_init (EvDocumentFindInterface *iface);
+static void epub_document_document_links_iface_init (EvDocumentLinksInterface *iface);
+
+EV_BACKEND_REGISTER_WITH_CODE (EpubDocument, epub_document,
+ {
+ EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
+ epub_document_document_thumbnails_iface_init);
+ EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_FIND,
+ epub_document_document_find_iface_init);
+ EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_LINKS,
+ epub_document_document_links_iface_init);
+
+ } );
+
+static void
+epub_document_thumbnails_get_dimensions (EvDocumentThumbnails *document,
+ EvRenderContext *rc,
+ gint *width,
+ gint *height)
+{
+ gdouble page_width, page_height;
+
+ page_width = 800;
+ page_height = 1080;
+
+ *width = MAX ((gint)(page_width * rc->scale + 0.5), 1);
+ *height = MAX ((gint)(page_height * rc->scale + 0.5), 1);
+}
+
+static GdkPixbuf *
+epub_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document,
+ EvRenderContext *rc,
+ gboolean border)
+{
+ cairo_surface_t *webpage;
+ GdkPixbuf *thumbnailpix = NULL ;
+ gint width,height;
+ epub_document_thumbnails_get_dimensions(document,rc,&width,&height);
+ webpage = ev_document_misc_surface_rotate_and_scale(rc->page->backend_page,width,height,0);
+ thumbnailpix = ev_document_misc_pixbuf_from_surface(webpage);
+ return thumbnailpix;
+}
+
+static gboolean
+in_tag(const char* found)
+{
+ const char* bracket = found ;
+
+ /* Since the dump started with the body tag, the '<' will be the first
+ * character in the haystack.
+ */
+ while (*bracket != '<') {
+ bracket--;
+ if (*bracket == '>') {
+ /*We encounted a close brace before an open*/
+ return FALSE ;
+ }
+ }
+
+ return TRUE;
+}
+
+static int
+get_substr_count(const char * haystack,const char *needle,gboolean case_sensitive)
+{
+ const char* tmp = haystack ;
+ char* (*string_compare_function)(const char*,const char*);
+ int count=0;
+ if (case_sensitive) {
+ string_compare_function = strstr ;
+ }
+ else {
+ string_compare_function = strcasestr;
+ }
+
+ while ((tmp=string_compare_function(tmp,needle))) {
+ if (!in_tag(tmp)) {
+ count++;
+ }
+ tmp = tmp + strlen(needle);
+ }
+
+ return count;
+}
+
+static guint
+epub_document_check_hits(EvDocumentFind *document_find,
+ EvPage *page,
+ const gchar *text,
+ gboolean case_sensitive)
+{
+ gchar *filepath = g_filename_from_uri((gchar*)page->backend_page,NULL,NULL);
+ htmlDocPtr htmldoc = xmlParseFile(filepath);
+ htmlNodePtr htmltag = xmlDocGetRootElement(htmldoc);
+ int count=0;
+ htmlNodePtr bodytag = htmltag->xmlChildrenNode;
+
+ while ( xmlStrcmp(bodytag->name,(xmlChar*)"body") ) {
+ bodytag = bodytag->next;
+ }
+
+ xmlBufferPtr bodybuffer = xmlBufferCreate();
+ xmlNodeDump(bodybuffer,htmldoc,bodytag,0,1);
+
+ count = get_substr_count((char*)bodybuffer->content,text,case_sensitive);
+
+ xmlBufferFree(bodybuffer);
+ xmlFreeDoc(htmldoc);
+
+ return count;
+}
+
+static gboolean
+epub_document_links_has_document_links(EvDocumentLinks *document_links)
+{
+ EpubDocument *epub_document = EPUB_DOCUMENT(document_links);
+
+ g_return_if_fail(EPUB_IS_DOCUMENT(epub_document));
+
+ if (!epub_document->index)
+ return FALSE;
+
+ return TRUE;
+}
+
+
+typedef struct _LinksCBStruct {
+ GtkTreeModel *model;
+ GtkTreeIter *parent;
+}LinksCBStruct;
+
+static void
+epub_document_make_tree_entry(linknode* ListData,LinksCBStruct* UserData)
+{
+ GtkTreeIter tree_iter;
+ EvLink *link = NULL;
+ gboolean expand;
+ char *title_markup;
+
+ //These are all children of the document title, and have no chlidren nodes
+ expand = FALSE;
+
+ EvLinkDest *ev_dest = NULL;
+ EvLinkAction *ev_action;
+
+ /* We shall use a EV_LINK_DEST_TYPE_PAGE for page links,
+ * and a EV_LINK_DEST_TYPE_HLINK(custom) for refs on a page of type url#label
+ * because we need both dest and page label for this.
+ */
+
+ if (g_strrstr(ListData->pagelink,"#") == NULL) {
+ ev_dest = ev_link_dest_new_page(ListData->page);
+ }
+ else {
+ ev_dest = ev_link_dest_new_hlink((gchar*)ListData->pagelink,ListData->page);
+ }
+
+ ev_action = ev_link_action_new_dest (ev_dest);
+
+ link = ev_link_new((gchar*)ListData->linktext,ev_action);
+
+ gtk_tree_store_append (GTK_TREE_STORE (UserData->model), &tree_iter,(UserData->parent));
+ title_markup = g_strdup((gchar*)ListData->linktext);
+
+ gtk_tree_store_set (GTK_TREE_STORE (UserData->model), &tree_iter,
+ EV_DOCUMENT_LINKS_COLUMN_MARKUP, title_markup,
+ EV_DOCUMENT_LINKS_COLUMN_LINK, link,
+ EV_DOCUMENT_LINKS_COLUMN_EXPAND, expand,
+ -1);
+
+ g_free (title_markup);
+ g_object_unref (link);
+}
+
+static GtkTreeModel *
+epub_document_links_get_links_model(EvDocumentLinks *document_links)
+{
+ GtkTreeModel *model = NULL;
+
+ g_return_val_if_fail (EPUB_IS_DOCUMENT (document_links), NULL);
+
+ EpubDocument *epub_document = EPUB_DOCUMENT(document_links);
+
+ model = (GtkTreeModel*) gtk_tree_store_new (EV_DOCUMENT_LINKS_COLUMN_NUM_COLUMNS,
+ G_TYPE_STRING,
+ G_TYPE_OBJECT,
+ G_TYPE_BOOLEAN,
+ G_TYPE_STRING);
+
+ LinksCBStruct linkStruct;
+ linkStruct.model = model;
+ EvLink *link = ev_link_new(epub_document->docTitle,
+ ev_link_action_new_dest(ev_link_dest_new_page(0)));
+ GtkTreeIter parent;
+
+ linkStruct.parent = &parent;
+
+ gtk_tree_store_append (GTK_TREE_STORE (model), &parent,NULL);
+
+ gtk_tree_store_set (GTK_TREE_STORE (model), &parent,
+ EV_DOCUMENT_LINKS_COLUMN_MARKUP, epub_document->docTitle,
+ EV_DOCUMENT_LINKS_COLUMN_LINK, link,
+ EV_DOCUMENT_LINKS_COLUMN_EXPAND, TRUE,
+ -1);
+
+ g_object_unref(link);
+
+ if (epub_document->index) {
+ g_list_foreach (epub_document->index,(GFunc)epub_document_make_tree_entry,&linkStruct);
+ }
+
+ return model;
+}
+
+static void
+epub_document_document_thumbnails_iface_init (EvDocumentThumbnailsInterface *iface)
+{
+ iface->get_thumbnail = epub_document_thumbnails_get_thumbnail;
+ iface->get_dimensions = epub_document_thumbnails_get_dimensions;
+}
+
+static void
+epub_document_document_find_iface_init (EvDocumentFindInterface *iface)
+{
+ iface->check_for_hits = epub_document_check_hits;
+}
+
+static void
+epub_document_document_links_iface_init(EvDocumentLinksInterface *iface)
+{
+ iface->has_document_links = epub_document_links_has_document_links;
+ iface->get_links_model = epub_document_links_get_links_model;
+}
+
+static gboolean
+epub_document_save (EvDocument *document,
+ const char *uri,
+ GError **error)
+{
+ EpubDocument *epub_document = EPUB_DOCUMENT (document);
+
+ return ev_xfer_uri_simple (epub_document->archivename, uri, error);
+}
+
+static int
+epub_document_get_n_pages (EvDocument *document)
+{
+ EpubDocument *epub_document = EPUB_DOCUMENT (document);
+
+ if (epub_document-> contentList == NULL)
+ return 0;
+
+ return g_list_length(epub_document->contentList);
+}
+
+/**
+ * epub_remove_temporary_dir : Removes a directory recursively.
+ * This function is same as comics_remove_temporary_dir
+ * Returns:
+ * 0 if it was successfully deleted,
+ * -1 if an error occurred
+ */
+static int
+epub_remove_temporary_dir (gchar *path_name)
+{
+ GDir *content_dir;
+ const gchar *filename;
+ gchar *filename_with_path;
+
+ if (g_file_test (path_name, G_FILE_TEST_IS_DIR)) {
+ content_dir = g_dir_open (path_name, 0, NULL);
+ filename = g_dir_read_name (content_dir);
+ while (filename) {
+ filename_with_path =
+ g_build_filename (path_name,
+ filename, NULL);
+ epub_remove_temporary_dir (filename_with_path);
+ g_free (filename_with_path);
+ filename = g_dir_read_name (content_dir);
+ }
+ g_dir_close (content_dir);
+ }
+ /* Note from g_remove() documentation: on Windows, it is in general not
+ * possible to remove a file that is open to some process, or mapped
+ * into memory.*/
+ return (g_remove (path_name));
+}
+
+
+static gboolean
+check_mime_type (const gchar* uri,
+ GError** error);
+
+static gboolean
+open_xml_document (const gchar* filename);
+
+static gboolean
+set_xml_root_node (xmlChar* rootname);
+
+static xmlNodePtr
+xml_get_pointer_to_node (xmlChar* parserfor,
+ xmlChar* attributename,
+ xmlChar* attributevalue);
+static void
+xml_parse_children_of_node (xmlNodePtr parent,
+ xmlChar* parserfor,
+ xmlChar* attributename,
+ xmlChar* attributevalue);
+
+static gboolean
+xml_check_attribute_value (xmlNode* node,
+ xmlChar * attributename,
+ xmlChar* attributevalue);
+
+static xmlChar*
+xml_get_data_from_node (xmlNodePtr node,
+ xmlParseReturnType rettype,
+ xmlChar* attributename);
+
+static void
+xml_free_doc();
+
+static void
+free_tree_nodes (gpointer data);
+
+/*Global variables for XML parsing*/
+static xmlDocPtr xmldocument ;
+static xmlNodePtr xmlroot ;
+static xmlNodePtr xmlretval ;
+
+/*
+**Functions to parse the xml files.
+**Open a XML document for reading
+*/
+static gboolean
+open_xml_document ( const gchar* filename )
+{
+ xmldocument = xmlParseFile(filename);
+
+ if ( xmldocument == NULL )
+ {
+ return FALSE ;
+ }
+ else
+ {
+ return TRUE ;
+ }
+}
+
+/**
+ *Check if the root value is same as rootname .
+ *if supplied rootvalue = NULL ,just set root to rootnode .
+**/
+static gboolean
+set_xml_root_node(xmlChar* rootname)
+{
+ xmlroot = xmlDocGetRootElement(xmldocument);
+
+ if (xmlroot == NULL) {
+
+ xmlFreeDoc(xmldocument);
+ return FALSE;
+ }
+
+ if ( rootname == NULL )
+ {
+ return TRUE ;
+ }
+
+ if ( !xmlStrcmp(xmlroot->name,rootname))
+ {
+ return TRUE ;
+ }
+ else
+ {
+ return FALSE;
+ }
+}
+
+static xmlNodePtr
+xml_get_pointer_to_node(xmlChar* parserfor,
+ xmlChar* attributename,
+ xmlChar* attributevalue )
+{
+ xmlNodePtr topchild,children ;
+
+ xmlretval = NULL ;
+
+ if ( !xmlStrcmp( xmlroot->name, parserfor) )
+ {
+ return xmlroot ;
+ }
+
+ topchild = xmlroot->xmlChildrenNode ;
+
+ while ( topchild != NULL )
+ {
+ if ( !xmlStrcmp(topchild->name,parserfor) )
+ {
+ if ( xml_check_attribute_value(topchild,attributename,attributevalue) == TRUE )
+ {
+ xmlretval = topchild;
+ return xmlretval;
+ }
+ else
+ {
+ /*No need to parse children node*/
+ topchild = topchild->next ;
+ continue ;
+ }
+ }
+
+ xml_parse_children_of_node(topchild , parserfor, attributename, attributevalue) ;
+
+ topchild = topchild->next ;
+ }
+
+ return xmlretval ;
+}
+
+static void
+xml_parse_children_of_node(xmlNodePtr parent,
+ xmlChar* parserfor,
+ xmlChar* attributename,
+ xmlChar* attributevalue )
+{
+ xmlNodePtr child = parent->xmlChildrenNode ;
+
+ while ( child != NULL )
+ {
+ if ( !xmlStrcmp(child->name,parserfor))
+ {
+ if ( xml_check_attribute_value(child,attributename,attributevalue) == TRUE )
+ {
+ xmlretval = child;
+ return ;
+ }
+ else
+ {
+ /*No need to parse children node*/
+ child = child->next ;
+ continue ;
+ }
+ }
+
+ /*return already if we have xmlretval set*/
+ if ( xmlretval != NULL )
+ {
+ return ;
+ }
+
+ xml_parse_children_of_node(child,parserfor,attributename,attributevalue) ;
+ child = child->next ;
+ }
+}
+
+static void
+xml_free_doc()
+{
+ xmlFreeDoc(xmldocument);
+ xmldocument = NULL;
+}
+
+static gboolean
+xml_check_attribute_value(xmlNode* node,
+ xmlChar * attributename,
+ xmlChar* attributevalue)
+{
+ xmlChar* attributefromfile ;
+ if ( attributename == NULL || attributevalue == NULL )
+ {
+ return TRUE ;
+ }
+ else if ( !xmlStrcmp(( attributefromfile = xmlGetProp(node,attributename)),
+ attributevalue) )
+ {
+ xmlFree(attributefromfile);
+ return TRUE ;
+ }
+ xmlFree(attributefromfile);
+ return FALSE ;
+}
+
+static xmlChar*
+xml_get_data_from_node(xmlNodePtr node,
+ xmlParseReturnType rettype,
+ xmlChar* attributename)
+{
+ xmlChar* datastring ;
+ if ( rettype == XML_ATTRIBUTE )
+ datastring= xmlGetProp(node,attributename);
+ else
+ datastring= xmlNodeListGetString(xmldocument,node->xmlChildrenNode, 1);
+
+ return datastring;
+}
+
+static gboolean
+check_mime_type(const gchar* uri,GError** error)
+{
+ GError * err = NULL ;
+ const gchar* mimeFromFile = ev_file_get_mime_type(uri,FALSE,&err);
+
+ gchar* mimetypes[] = {"application/epub+zip","application/x-booki+zip"};
+ int typecount = 2;
+ if ( !mimeFromFile )
+ {
+ if (err) {
+ g_propagate_error (error, err);
+ }
+ else {
+ g_set_error_literal (error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("Unknown MIME Type"));
+ }
+ return FALSE;
+ }
+ else
+ {
+ int i=0;
+ for (i=0; i < typecount ;i++) {
+ if ( g_strcmp0(mimeFromFile, mimetypes[i]) == 0 ) {
+ return TRUE;
+ }
+ }
+
+ /*We didn't find a match*/
+ g_set_error_literal (error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("Not an ePub document"));
+
+ return FALSE;
+ }
+}
+
+static gboolean
+extract_one_file(EpubDocument* epub_document,GError ** error)
+{
+ GFile * outfile ;
+ gsize writesize = 0;
+ GString * gfilepath ;
+ unz_file_info64 info ;
+ gchar* directory;
+ GString* dir_create;
+ GFileOutputStream * outstream ;
+ gpointer currentfilename = g_malloc0(512);
+ gpointer buffer = g_malloc0(512);
+ gchar* createdirnametemp = NULL ;
+ gchar* createdirname = NULL;
+ if ( unzOpenCurrentFile(epub_document->epubDocument) != UNZ_OK )
+ {
+ return FALSE ;
+ }
+
+ unzGetCurrentFileInfo64(epub_document->epubDocument,&info,currentfilename,512,NULL,0,NULL,0) ;
+ directory = g_strrstr(currentfilename,"/") ;
+
+ if ( directory != NULL )
+ directory++;
+
+ gfilepath = g_string_new(epub_document->tmp_archive_dir) ;
+ g_string_append_printf(gfilepath,"/%s",(gchar*)currentfilename);
+
+ /*if we encounter a directory, make a directory inside our temporary folder.*/
+ if (directory != NULL && *directory == '\0')
+ {
+ g_mkdir(gfilepath->str,0777);
+ unzCloseCurrentFile (epub_document->epubDocument) ;
+ g_string_free(gfilepath,TRUE);
+ g_free(currentfilename);
+ g_free(buffer);
+ return TRUE;
+ }
+ else if (directory != NULL && *directory != '\0' ) {
+ gchar* createdir = currentfilename;
+ /*Since a substring can't be longer than the parent string, allocating space equal to the parent's size should suffice*/
+ createdirname = g_malloc0(strlen(currentfilename));
+ /* Add the name of the directory and subdiectories,if any to a buffer and then create it */
+ createdirnametemp = createdirname;
+ while ( createdir != directory ) {
+ (*createdirnametemp) = (*createdir);
+ createdirnametemp++;
+ createdir++;
+ }
+ (*createdirnametemp) = '\0';
+ dir_create = g_string_new(epub_document->tmp_archive_dir);
+ g_string_append_printf(dir_create,"/%s",createdirname);
+ g_mkdir_with_parents(dir_create->str,0777);
+ g_string_free(dir_create,TRUE);
+ }
+
+ outfile = g_file_new_for_path(gfilepath->str);
+ outstream = g_file_create(outfile,G_FILE_CREATE_PRIVATE,NULL,error);
+ while ( (writesize = unzReadCurrentFile(epub_document->epubDocument,buffer,512) ) != 0 )
+ {
+ if ( g_output_stream_write((GOutputStream*)outstream,buffer,writesize,NULL,error) == -1 )
+ {
+ return FALSE ;
+ }
+ }
+ g_output_stream_close((GOutputStream*)outstream,NULL,error);
+ g_object_unref(outfile) ;
+ g_object_unref(outstream) ;
+
+ unzCloseCurrentFile (epub_document->epubDocument) ;
+ g_string_free(gfilepath,TRUE);
+ g_free(currentfilename);
+ g_free(buffer);
+ if ( createdirname != NULL) {
+ g_free(createdirname);
+ }
+ return TRUE;
+}
+
+static gboolean
+extract_epub_from_container (const gchar* uri,
+ EpubDocument *epub_document,
+ GError ** error)
+{
+ GError* err = NULL ;
+ GString * temporary_sub_directory ;
+ epub_document->archivename = g_filename_from_uri(uri,NULL,error);
+ gchar* epubfilename ;
+ if ( !epub_document->archivename )
+ {
+ if (err) {
+ g_propagate_error (error, err);
+ }
+ else {
+ g_set_error_literal (error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("could not retrieve filename"));
+ }
+ return FALSE ;
+ }
+
+ epubfilename = g_strrstr(epub_document->archivename,"/");
+ if ( *epubfilename == '/' )
+ epubfilename++ ;
+
+ temporary_sub_directory = g_string_new( epubfilename );
+ g_string_append(temporary_sub_directory,"XXXXXX") ;
+
+ epub_document->tmp_archive_dir = ev_mkdtemp(temporary_sub_directory->str,error) ;
+
+ if (!epub_document->tmp_archive_dir) {
+ return FALSE ;
+ }
+
+ g_string_free(temporary_sub_directory,TRUE);
+
+ epub_document->epubDocument = unzOpen64(epub_document->archivename);
+
+ if ( epub_document->epubDocument == NULL )
+ {
+ if (err) {
+ g_propagate_error (error, err);
+ }
+ else {
+ g_set_error_literal (error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("could not open archive"));
+ }
+ return FALSE ;
+ }
+ if ( unzGoToFirstFile(epub_document->epubDocument) != UNZ_OK )
+ {
+ if (err) {
+ g_propagate_error (error, err);
+ }
+ else {
+ g_set_error_literal (error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("could not extract archive"));
+ }
+ return FALSE ;
+ }
+ while ( TRUE )
+ {
+ if ( extract_one_file(epub_document,&err) == FALSE )
+ {
+ if (err) {
+ g_propagate_error (error, err);
+ }
+ else {
+ g_set_error_literal (error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("could not extract archive"));
+ }
+ return FALSE;
+ }
+
+ if ( unzGoToNextFile(epub_document->epubDocument) == UNZ_END_OF_LIST_OF_FILE )
+ break ;
+ }
+
+ unzClose(epub_document->epubDocument);
+ return TRUE ;
+}
+
+static gchar*
+get_uri_to_content(const gchar* uri,GError ** error,EpubDocument *epub_document)
+{
+ gchar* tmp_archive_dir = epub_document->tmp_archive_dir;
+ GError * err = NULL ;
+ gchar* containerpath = g_filename_from_uri(uri,NULL,&err);
+ GString* absolutepath ;
+ gchar* content_uri ;
+ xmlNodePtr rootfileNode ;
+ xmlChar* relativepath;
+ gchar* directorybuffer = g_malloc0(sizeof(gchar*)*100);
+
+ if ( !containerpath )
+ {
+ if (err) {
+ g_propagate_error (error,err);
+ }
+ else {
+ g_set_error_literal (error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("could not retrieve container file"));
+ }
+ return NULL ;
+ }
+
+ if ( open_xml_document(containerpath) == FALSE )
+ {
+ g_set_error_literal(error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("could not open container file"));
+
+ return NULL ;
+ }
+
+ if ( set_xml_root_node((xmlChar*)"container") == FALSE) {
+
+ g_set_error_literal(error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("container file is corrupt"));
+ return NULL ;
+ }
+
+ if ( (rootfileNode = xml_get_pointer_to_node((xmlChar*)"rootfile",(xmlChar*)"media-type",(xmlChar*)"application/oebps-package+xml")) == NULL)
+ {
+ g_set_error_literal(error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("epub file is invalid or corrput"));
+ return NULL ;
+ }
+
+ relativepath = xml_get_data_from_node(rootfileNode,XML_ATTRIBUTE,(xmlChar*)"full-path") ;
+ if ( relativepath == NULL )
+ {
+ g_set_error_literal(error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("epub file is corrupt,no container"));
+ return NULL ;
+ }
+ absolutepath = g_string_new(tmp_archive_dir);
+ gchar* documentfolder = g_strrstr((gchar*)relativepath,"/");
+ if (documentfolder != NULL) {
+ gchar* copybuffer = (gchar*)relativepath ;
+ gchar* writer = directorybuffer;
+
+ while(copybuffer != documentfolder) {
+ (*writer) = (*copybuffer);
+ writer++;copybuffer++;
+ }
+ *writer = '\0';
+ GString *documentdir = g_string_new(tmp_archive_dir);
+ g_string_append_printf(documentdir,"/%s",directorybuffer);
+ epub_document->documentdir = g_strdup(documentdir->str);
+
+ g_string_free(documentdir,TRUE);
+ }
+ else
+ {
+ epub_document->documentdir = g_strdup(tmp_archive_dir);
+ }
+
+ g_string_append_printf(absolutepath,"/%s",relativepath);
+ content_uri = g_filename_to_uri(absolutepath->str,NULL,&err);
+ if ( !content_uri ) {
+ if (err) {
+ g_propagate_error (error,err);
+ }
+ else {
+ g_set_error_literal (error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("could not retrieve container file"));
+ }
+ return NULL ;
+ }
+ g_string_free(absolutepath,TRUE);
+ g_free(directorybuffer);
+ xml_free_doc();
+ return content_uri ;
+}
+
+static gboolean
+link_present_on_page(const gchar* link,const gchar *page_uri)
+{
+ if (g_strrstr(link, page_uri)) {
+ return TRUE;
+ }
+ else {
+ return FALSE;
+ }
+}
+
+static GList*
+setup_document_content_list(const gchar* content_uri, GError** error,gchar *documentdir,GList *docindex)
+{
+ GList* newlist = NULL ;
+ GError * err = NULL ;
+ gint indexcounter= 1;
+ xmlNodePtr manifest,spine,itemrefptr,itemptr ;
+ gboolean errorflag = FALSE;
+ GList *indexcopy = docindex,*indexcopyiter = docindex;
+ gchar* relativepath ;
+ GString* absolutepath = g_string_new(NULL);
+
+ if ( open_xml_document(content_uri) == FALSE )
+ {
+ g_set_error_literal(error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("could not parse content manifest"));
+
+ return FALSE ;
+ }
+ if ( set_xml_root_node((xmlChar*)"package") == FALSE) {
+
+ g_set_error_literal(error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("content file is invalid"));
+ return FALSE ;
+ }
+
+ if ( ( spine = xml_get_pointer_to_node((xmlChar*)"spine",NULL,NULL) )== NULL )
+ {
+ g_set_error_literal(error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("epub file has no spine"));
+ return FALSE ;
+ }
+
+ if ( ( manifest = xml_get_pointer_to_node((xmlChar*)"manifest",NULL,NULL) )== NULL )
+ {
+ g_set_error_literal(error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("epub file has no manifest"));
+ return FALSE ;
+ }
+
+ xmlretval = NULL ;
+
+ /*Get first instance of itemref from the spine*/
+ xml_parse_children_of_node(spine,(xmlChar*)"itemref",NULL,NULL);
+
+ if ( xmlretval != NULL )
+ itemrefptr = xmlretval ;
+ else
+ {
+ errorflag=TRUE;
+ }
+ /*Parse the spine for remaining itemrefs*/
+ do
+ {
+ indexcopyiter = indexcopy ;
+ /*for the first time that we enter the loop, if errorflag is set we break*/
+ if ( errorflag )
+ {
+ break;
+ }
+ if ( xmlStrcmp(itemrefptr->name,(xmlChar*)"itemref") == 0)
+ {
+ contentListNode* newnode = g_malloc0(sizeof(newnode));
+ newnode->key = (gchar*)xml_get_data_from_node(itemrefptr,XML_ATTRIBUTE,(xmlChar*)"idref");
+ if ( newnode->key == NULL )
+ {
+ errorflag =TRUE;
+ break;
+ }
+ xmlretval=NULL ;
+ xml_parse_children_of_node(manifest,(xmlChar*)"item",(xmlChar*)"id",(xmlChar*)newnode->key);
+
+ if ( xmlretval != NULL )
+ {
+ itemptr = xmlretval ;
+ }
+ else
+ {
+ errorflag=TRUE;
+ break;
+ }
+ relativepath = (gchar*)xml_get_data_from_node(itemptr,XML_ATTRIBUTE,(xmlChar*)"href");
+ g_string_assign(absolutepath,documentdir);
+ g_string_append_printf(absolutepath,"/%s",relativepath);
+ newnode->value = g_filename_to_uri(absolutepath->str,NULL,&err);
+ if ( newnode->value == NULL )
+ {
+ errorflag =TRUE;
+ break;
+ }
+
+ newnode->index = indexcounter++ ;
+
+ /* NOTE:Because the TOC is not always in a sorted manner, we need to check all remaining pages every time.
+ */
+ while (indexcopyiter != NULL) {
+ linknode *linkdata = indexcopyiter->data;
+
+ if (link_present_on_page(linkdata->pagelink,newnode->value)) {
+ linkdata->page = newnode->index - 1;
+ indexcopy = indexcopy->next;
+ }
+ indexcopyiter = indexcopyiter->next;
+ }
+
+ newlist = g_list_prepend(newlist,newnode);
+ }
+ itemrefptr = itemrefptr->next ;
+ }
+ while ( itemrefptr != NULL );
+
+ if ( errorflag )
+ {
+ if ( err )
+ {
+ g_propagate_error(error,err);
+ }
+ else
+ {
+ g_set_error_literal(error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("Could not set up document tree for loading, some files missing"));
+ }
+ /*free any nodes that were set up and return empty*/
+ g_string_free(absolutepath,TRUE);
+ g_list_free_full(newlist,(GDestroyNotify)free_tree_nodes);
+ return NULL ;
+ }
+ newlist = g_list_reverse(newlist);
+ g_string_free(absolutepath,TRUE);
+ xml_free_doc();
+ return newlist ;
+
+}
+
+/* Callback function to free the contentlist.*/
+static void
+free_tree_nodes(gpointer data)
+{
+ contentListNode* dataptr = data ;
+ g_free(dataptr->value);
+ g_free(dataptr->key);
+ g_free(dataptr);
+}
+
+static void
+free_link_nodes(gpointer data)
+{
+ linknode* dataptr = data ;
+ g_free(dataptr->pagelink);
+ g_free(dataptr->linktext);
+ g_free(dataptr);
+}
+
+static gchar*
+get_toc_file_name(gchar *containeruri)
+{
+ gchar *containerfilename = g_filename_from_uri(containeruri,NULL,NULL);
+
+ open_xml_document(containerfilename);
+
+ set_xml_root_node(NULL);
+
+ xmlNodePtr manifest = xml_get_pointer_to_node((xmlChar*)"manifest",NULL,NULL);
+ xmlNodePtr spine = xml_get_pointer_to_node((xmlChar*)"spine",NULL,NULL);
+
+ xmlChar *ncx = xml_get_data_from_node(spine,XML_ATTRIBUTE,(xmlChar*)"toc");
+ xmlretval = NULL;
+ xml_parse_children_of_node(manifest,(xmlChar*)"item",(xmlChar*)"id",ncx);
+
+ gchar* tocfilename = (gchar*)xml_get_data_from_node(xmlretval,XML_ATTRIBUTE,(xmlChar*)"href");
+ xml_free_doc();
+
+ return tocfilename;
+}
+
+static GList*
+setup_document_index(EpubDocument *epub_document,gchar *containeruri)
+{
+ GString *tocpath = g_string_new(epub_document->documentdir);
+ gchar *tocfilename = get_toc_file_name(containeruri);
+ GList *index = NULL;
+ g_string_append_printf (tocpath,"/%s",tocfilename);
+ GString *pagelink;
+ open_xml_document(tocpath->str);
+ g_string_free(tocpath,TRUE);
+ set_xml_root_node((xmlChar*)"ncx");
+
+ xmlNodePtr docTitle = xml_get_pointer_to_node((xmlChar*)"docTitle",NULL,NULL);
+ xmlretval = NULL;
+ xml_parse_children_of_node(docTitle,(xmlChar*)"text",NULL,NULL);
+
+ while (epub_document->docTitle == NULL && xmlretval != NULL) {
+ epub_document->docTitle = (gchar*)xml_get_data_from_node(xmlretval,XML_KEYWORD,NULL);
+ xmlretval = xmlretval->next;
+ }
+ xmlNodePtr navMap = xml_get_pointer_to_node((xmlChar*)"navMap",NULL,NULL);
+ xmlretval = NULL;
+ xml_parse_children_of_node(navMap,(xmlChar*)"navPoint",NULL,NULL);
+
+ xmlNodePtr navPoint = xmlretval;
+
+ do {
+
+ if ( !xmlStrcmp(navPoint->name,(xmlChar*)"navPoint")) {
+ xmlretval = NULL;
+ xml_parse_children_of_node(navPoint,(xmlChar*)"navLabel",NULL,NULL);
+ xmlNodePtr navLabel = xmlretval;
+ xmlretval = NULL;
+ gchar *fragment=NULL,*end=NULL;
+ GString *uri = NULL;
+
+ xml_parse_children_of_node(navLabel,(xmlChar*)"text",NULL,NULL);
+ linknode *newnode = g_new0(linknode,1);
+ newnode->linktext = NULL;
+ while (newnode->linktext == NULL) {
+ newnode->linktext = (gchar*)xml_get_data_from_node(xmlretval,XML_KEYWORD,NULL);
+ xmlretval = xmlretval->next;
+ }
+ xmlretval = NULL;
+ xml_parse_children_of_node(navPoint,(xmlChar*)"content",NULL,NULL);
+ pagelink = g_string_new(epub_document->documentdir);
+ newnode->pagelink = (gchar*)xml_get_data_from_node(xmlretval,XML_ATTRIBUTE,(xmlChar*)"src");
+ g_string_append_printf(pagelink,"/%s",newnode->pagelink);
+ xmlFree(newnode->pagelink);
+
+ if ((end = g_strrstr(pagelink->str,"#")) != NULL) {
+ fragment = g_strdup(g_strrstr(pagelink->str,"#"));
+ *end = '\0';
+ }
+ uri = g_string_new(g_filename_to_uri(pagelink->str,NULL,NULL));
+ g_string_free(pagelink,TRUE);
+
+ if (fragment) {
+ g_string_append(uri,fragment);
+ }
+
+ newnode->pagelink = g_strdup(uri->str);
+ g_string_free(uri,TRUE);
+ index = g_list_prepend(index,newnode);
+ }
+
+ navPoint = navPoint->next;
+
+ } while(navPoint != NULL);
+
+ xml_free_doc();
+
+ return g_list_reverse(index);
+}
+
+static EvDocumentInfo*
+epub_document_get_info(EvDocument *document)
+{
+ EpubDocument *epub_document = EPUB_DOCUMENT(document);
+ GError *error = NULL ;
+ gchar* infofile ;
+ xmlNodePtr metanode ;
+ GString* buffer ;
+ gchar* archive_dir = epub_document->tmp_archive_dir;
+ GString* containerpath = g_string_new(epub_document->tmp_archive_dir);
+ g_string_append_printf(containerpath,"/META-INF/container.xml");
+ gchar* containeruri = g_filename_to_uri(containerpath->str,NULL,&error);
+ if ( error )
+ {
+ return NULL ;
+ }
+ gchar* uri = get_uri_to_content (containeruri,&error,epub_document);
+ if ( error )
+ {
+ return NULL ;
+ }
+ EvDocumentInfo* epubinfo = g_new0 (EvDocumentInfo, 1);
+
+ epubinfo->fields_mask = EV_DOCUMENT_INFO_TITLE |
+ EV_DOCUMENT_INFO_FORMAT |
+ EV_DOCUMENT_INFO_AUTHOR |
+ EV_DOCUMENT_INFO_SUBJECT |
+ EV_DOCUMENT_INFO_KEYWORDS |
+ EV_DOCUMENT_INFO_LAYOUT |
+ EV_DOCUMENT_INFO_CREATOR |
+ EV_DOCUMENT_INFO_LINEARIZED |
+ EV_DOCUMENT_INFO_PERMISSIONS |
+ EV_DOCUMENT_INFO_N_PAGES ;
+
+ infofile = g_filename_from_uri(uri,NULL,&error);
+ if ( error )
+ return epubinfo;
+
+ open_xml_document(infofile);
+
+ set_xml_root_node((xmlChar*)"package");
+
+ metanode = xml_get_pointer_to_node((xmlChar*)"title",NULL,NULL);
+ if ( metanode == NULL )
+ epubinfo->title = NULL ;
+ else
+ epubinfo->title = (char*)xml_get_data_from_node(metanode,XML_KEYWORD,NULL);
+
+ metanode = xml_get_pointer_to_node((xmlChar*)"creator",NULL,NULL);
+ if ( metanode == NULL )
+ epubinfo->author = g_strdup("unknown");
+ else
+ epubinfo->author = (char*)xml_get_data_from_node(metanode,XML_KEYWORD,NULL);
+
+ metanode = xml_get_pointer_to_node((xmlChar*)"subject",NULL,NULL);
+ if ( metanode == NULL )
+ epubinfo->subject = g_strdup("unknown");
+ else
+ epubinfo->subject = (char*)xml_get_data_from_node(metanode,XML_KEYWORD,NULL);
+
+ buffer = g_string_new((gchar*)xml_get_data_from_node (xmlroot,XML_ATTRIBUTE,(xmlChar*)"version"));
+ g_string_prepend(buffer,"epub ");
+ epubinfo->format = g_strdup(buffer->str);
+
+ /*FIXME: Add more of these as you write the corresponding modules*/
+
+ epubinfo->layout = EV_DOCUMENT_LAYOUT_SINGLE_PAGE;
+
+ metanode = xml_get_pointer_to_node((xmlChar*)"publisher",NULL,NULL);
+ if ( metanode == NULL )
+ epubinfo->creator = g_strdup("unknown");
+ else
+ epubinfo->creator = (char*)xml_get_data_from_node(metanode,XML_KEYWORD,NULL);
+
+ /* number of pages */
+ epubinfo->n_pages = epub_document_get_n_pages(document);
+
+ /*Copying*/
+ epubinfo->permissions = EV_DOCUMENT_PERMISSIONS_OK_TO_COPY;
+ /*TODO : Add a function to get date*/
+ g_free(uri);
+ g_string_free(containerpath,TRUE);
+ g_string_free(buffer,TRUE);
+
+ if (xmldocument)
+ xml_free_doc();
+ return epubinfo ;
+}
+
+static EvPage*
+epub_document_get_page(EvDocument *document,
+ gint index)
+{
+ EpubDocument *epub_document = EPUB_DOCUMENT(document);
+ EvPage* page = ev_page_new(index);
+ contentListNode *listptr = g_list_nth_data (epub_document->contentList,index);
+ page->backend_page = g_strdup(listptr->value);
+ return page ;
+}
+
+
+static gboolean
+epub_document_load (EvDocument* document,
+ const char* uri,
+ GError** error)
+{
+ EpubDocument *epub_document = EPUB_DOCUMENT(document);
+ GError* err = NULL ;
+ gchar* containeruri ;
+ GString *containerpath ;
+ gchar* contentOpfUri ;
+ if ( check_mime_type (uri,&err) == FALSE )
+ {
+ /*Error would've been set by the function*/
+ g_propagate_error(error,err);
+ return FALSE;
+ }
+
+ extract_epub_from_container (uri,epub_document,&err);
+
+ if ( err )
+ {
+ g_propagate_error( error,err );
+ return FALSE;
+ }
+
+ /*FIXME : can this be different, ever?*/
+ containerpath = g_string_new(epub_document->tmp_archive_dir);
+ g_string_append_printf(containerpath,"/META-INF/container.xml");
+ containeruri = g_filename_to_uri(containerpath->str,NULL,&err);
+
+ if ( err )
+ {
+ g_propagate_error(error,err);
+ return FALSE;
+ }
+ contentOpfUri = get_uri_to_content (containeruri,&err,epub_document);
+
+ if ( contentOpfUri == NULL )
+ {
+ g_propagate_error(error,err);
+ return FALSE;
+ }
+
+ epub_document->index = setup_document_index(epub_document,contentOpfUri);
+
+ epub_document->contentList = setup_document_content_list (contentOpfUri,&err,epub_document->documentdir,epub_document->index);
+
+ if ( epub_document->contentList == NULL )
+ {
+ g_propagate_error(error,err);
+ return FALSE;
+ }
+
+ return TRUE ;
+}
+
+static void
+epub_document_init (EpubDocument *epub_document)
+{
+ epub_document->archivename = NULL ;
+ epub_document->tmp_archive_dir = NULL ;
+ epub_document->contentList = NULL ;
+ epub_document->documentdir = NULL;
+ epub_document->index = NULL;
+ epub_document->docTitle = NULL;
+}
+
+static void
+epub_document_finalize (GObject *object)
+{
+ EpubDocument *epub_document = EPUB_DOCUMENT (object);
+
+ if (epub_document->epubDocument != NULL) {
+ if (epub_remove_temporary_dir (epub_document->tmp_archive_dir) == -1)
+ g_warning (_("There was an error deleting “%s”."),
+ epub_document->tmp_archive_dir);
+ }
+
+ if ( epub_document->contentList ) {
+ g_list_free_full(epub_document->contentList,(GDestroyNotify)free_tree_nodes);
+ epub_document->contentList = NULL;
+ }
+
+ if (epub_document->index) {
+ g_list_free_full(epub_document->index,(GDestroyNotify)free_link_nodes);
+ epub_document->index = NULL;
+ }
+
+ if ( epub_document->tmp_archive_dir) {
+ g_free (epub_document->tmp_archive_dir);
+ epub_document->tmp_archive_dir = NULL;
+ }
+
+ if (epub_document->docTitle) {
+ g_free(epub_document->docTitle);
+ epub_document->docTitle = NULL;
+ }
+ if ( epub_document->archivename) {
+ g_free (epub_document->archivename);
+ epub_document->archivename = NULL;
+ }
+ if ( epub_document->documentdir) {
+ g_free (epub_document->documentdir);
+ epub_document->documentdir = NULL;
+ }
+ G_OBJECT_CLASS (epub_document_parent_class)->finalize (object);
+}
+
+static void
+epub_document_class_init (EpubDocumentClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+ EvDocumentClass *ev_document_class = EV_DOCUMENT_CLASS (klass);
+
+ gobject_class->finalize = epub_document_finalize;
+ ev_document_class->load = epub_document_load;
+ ev_document_class->save = epub_document_save;
+ ev_document_class->get_n_pages = epub_document_get_n_pages;
+ ev_document_class->get_info = epub_document_get_info;
+ ev_document_class->get_page = epub_document_get_page;
+} \ No newline at end of file
diff --git a/backend/epub/epub-document.h b/backend/epub/epub-document.h
new file mode 100644
index 00000000..b1120ec7
--- /dev/null
+++ b/backend/epub/epub-document.h
@@ -0,0 +1,21 @@
+#ifndef __EPUB_DOCUMENT_H__
+#define __EPUB_DOCUMENT_H__
+
+#define _GNU_SOURCE
+#include "ev-document.h"
+
+G_BEGIN_DECLS
+
+#define EPUB_TYPE_DOCUMENT (epub_document_get_type ())
+#define EPUB_DOCUMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), EPUB_TYPE_DOCUMENT, EpubDocument))
+#define EPUB_IS_DOCUMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EPUB_TYPE_DOCUMENT))
+
+typedef struct _EpubDocument EpubDocument;
+
+GType epub_document_get_type (void) G_GNUC_CONST;
+
+G_MODULE_EXPORT GType register_atril_backend (GTypeModule *module);
+
+G_END_DECLS
+
+#endif /* __EPUB_DOCUMENT_H__ */
diff --git a/backend/epub/epubdocument.atril-backend.in b/backend/epub/epubdocument.atril-backend.in
new file mode 100644
index 00000000..ef7767eb
--- /dev/null
+++ b/backend/epub/epubdocument.atril-backend.in
@@ -0,0 +1,4 @@
+[Atril Backend]
+Module=epubdocument
+_TypeDescription=epub Documents
+MimeType=application/epub+zip;
diff --git a/backend/epub/minizip/Makefile.am b/backend/epub/minizip/Makefile.am
new file mode 100644
index 00000000..315fada0
--- /dev/null
+++ b/backend/epub/minizip/Makefile.am
@@ -0,0 +1,14 @@
+AM_CPPFLAGS = \
+ $(WARN_CFLAGS) \
+ $(ZLIB_CFLAGS)
+
+noinst_LTLIBRARIES = libminizip.la
+
+libminizip_la_SOURCES = \
+ unzip.c \
+ ioapi.c
+
+libminizip_la_LIBADD = \
+ $(ZLIB_LIBS)
+
+-include $(top_srcdir)/git.mk
diff --git a/backend/epub/minizip/ioapi.c b/backend/epub/minizip/ioapi.c
new file mode 100644
index 00000000..7f5c191b
--- /dev/null
+++ b/backend/epub/minizip/ioapi.c
@@ -0,0 +1,247 @@
+/* ioapi.h -- IO base function header for compress/uncompress .zip
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Modifications for Zip64 support
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+ For more info read MiniZip_info.txt
+
+*/
+
+#if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS)))
+ #define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#if defined(__APPLE__) || defined(IOAPI_NO_64)
+// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) ftello(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
+#else
+#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
+#define FTELLO_FUNC(stream) ftello64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
+#endif
+
+
+#include "ioapi.h"
+
+voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
+{
+ if (pfilefunc->zfile_func64.zopen64_file != NULL)
+ return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
+ else
+ {
+ return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
+ }
+}
+
+long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)
+{
+ if (pfilefunc->zfile_func64.zseek64_file != NULL)
+ return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
+ else
+ {
+ uLong offsetTruncated = (uLong)offset;
+ if (offsetTruncated != offset)
+ return -1;
+ else
+ return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
+ }
+}
+
+ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)
+{
+ if (pfilefunc->zfile_func64.zseek64_file != NULL)
+ return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
+ else
+ {
+ uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
+ if ((tell_uLong) == MAXU32)
+ return (ZPOS64_T)-1;
+ else
+ return tell_uLong;
+ }
+}
+
+void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32)
+{
+ p_filefunc64_32->zfile_func64.zopen64_file = NULL;
+ p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
+ p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+ p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
+ p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
+ p_filefunc64_32->zfile_func64.ztell64_file = NULL;
+ p_filefunc64_32->zfile_func64.zseek64_file = NULL;
+ p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
+ p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+ p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
+ p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
+ p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
+}
+
+
+
+static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode));
+static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
+static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));
+static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
+static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
+static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
+static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
+
+static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
+{
+ FILE* file = NULL;
+ const char* mode_fopen = NULL;
+ if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+ mode_fopen = "rb";
+ else
+ if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+ mode_fopen = "r+b";
+ else
+ if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+ mode_fopen = "wb";
+
+ if ((filename!=NULL) && (mode_fopen != NULL))
+ file = fopen(filename, mode_fopen);
+ return file;
+}
+
+static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
+{
+ FILE* file = NULL;
+ const char* mode_fopen = NULL;
+ if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+ mode_fopen = "rb";
+ else
+ if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+ mode_fopen = "r+b";
+ else
+ if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+ mode_fopen = "wb";
+
+ if ((filename!=NULL) && (mode_fopen != NULL))
+ file = FOPEN_FUNC((const char*)filename, mode_fopen);
+ return file;
+}
+
+
+static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
+{
+ uLong ret;
+ ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
+ return ret;
+}
+
+static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
+{
+ uLong ret;
+ ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
+ return ret;
+}
+
+static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
+{
+ long ret;
+ ret = ftell((FILE *)stream);
+ return ret;
+}
+
+
+static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
+{
+ ZPOS64_T ret;
+ ret = FTELLO_FUNC((FILE *)stream);
+ return ret;
+}
+
+static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin)
+{
+ int fseek_origin=0;
+ long ret;
+ switch (origin)
+ {
+ case ZLIB_FILEFUNC_SEEK_CUR :
+ fseek_origin = SEEK_CUR;
+ break;
+ case ZLIB_FILEFUNC_SEEK_END :
+ fseek_origin = SEEK_END;
+ break;
+ case ZLIB_FILEFUNC_SEEK_SET :
+ fseek_origin = SEEK_SET;
+ break;
+ default: return -1;
+ }
+ ret = 0;
+ if (fseek((FILE *)stream, offset, fseek_origin) != 0)
+ ret = -1;
+ return ret;
+}
+
+static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)
+{
+ int fseek_origin=0;
+ long ret;
+ switch (origin)
+ {
+ case ZLIB_FILEFUNC_SEEK_CUR :
+ fseek_origin = SEEK_CUR;
+ break;
+ case ZLIB_FILEFUNC_SEEK_END :
+ fseek_origin = SEEK_END;
+ break;
+ case ZLIB_FILEFUNC_SEEK_SET :
+ fseek_origin = SEEK_SET;
+ break;
+ default: return -1;
+ }
+ ret = 0;
+
+ if(FSEEKO_FUNC((FILE *)stream, offset, fseek_origin) != 0)
+ ret = -1;
+
+ return ret;
+}
+
+
+static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
+{
+ int ret;
+ ret = fclose((FILE *)stream);
+ return ret;
+}
+
+static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
+{
+ int ret;
+ ret = ferror((FILE *)stream);
+ return ret;
+}
+
+void fill_fopen_filefunc (pzlib_filefunc_def)
+ zlib_filefunc_def* pzlib_filefunc_def;
+{
+ pzlib_filefunc_def->zopen_file = fopen_file_func;
+ pzlib_filefunc_def->zread_file = fread_file_func;
+ pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+ pzlib_filefunc_def->ztell_file = ftell_file_func;
+ pzlib_filefunc_def->zseek_file = fseek_file_func;
+ pzlib_filefunc_def->zclose_file = fclose_file_func;
+ pzlib_filefunc_def->zerror_file = ferror_file_func;
+ pzlib_filefunc_def->opaque = NULL;
+}
+
+void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def)
+{
+ pzlib_filefunc_def->zopen64_file = fopen64_file_func;
+ pzlib_filefunc_def->zread_file = fread_file_func;
+ pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+ pzlib_filefunc_def->ztell64_file = ftell64_file_func;
+ pzlib_filefunc_def->zseek64_file = fseek64_file_func;
+ pzlib_filefunc_def->zclose_file = fclose_file_func;
+ pzlib_filefunc_def->zerror_file = ferror_file_func;
+ pzlib_filefunc_def->opaque = NULL;
+}
diff --git a/backend/epub/minizip/ioapi.h b/backend/epub/minizip/ioapi.h
new file mode 100644
index 00000000..8dcbdb06
--- /dev/null
+++ b/backend/epub/minizip/ioapi.h
@@ -0,0 +1,208 @@
+/* ioapi.h -- IO base function header for compress/uncompress .zip
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Modifications for Zip64 support
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+ For more info read MiniZip_info.txt
+
+ Changes
+
+ Oct-2009 - Defined ZPOS64_T to fpos_t on windows and u_int64_t on linux. (might need to find a better why for this)
+ Oct-2009 - Change to fseeko64, ftello64 and fopen64 so large files would work on linux.
+ More if/def section may be needed to support other platforms
+ Oct-2009 - Defined fxxxx64 calls to normal fopen/ftell/fseek so they would compile on windows.
+ (but you should use iowin32.c for windows instead)
+
+*/
+
+#ifndef _ZLIBIOAPI64_H
+#define _ZLIBIOAPI64_H
+
+#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
+
+ // Linux needs this to support file operation on files larger then 4+GB
+ // But might need better if/def to select just the platforms that needs them.
+
+ #ifndef __USE_FILE_OFFSET64
+ #define __USE_FILE_OFFSET64
+ #endif
+ #ifndef __USE_LARGEFILE64
+ #define __USE_LARGEFILE64
+ #endif
+ #ifndef _LARGEFILE64_SOURCE
+ #define _LARGEFILE64_SOURCE
+ #endif
+ #ifndef _FILE_OFFSET_BIT
+ #define _FILE_OFFSET_BIT 64
+ #endif
+
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "zlib.h"
+
+#if defined(USE_FILE32API)
+#define fopen64 fopen
+#define ftello64 ftell
+#define fseeko64 fseek
+#else
+#ifdef __FreeBSD__
+#define fopen64 fopen
+#define ftello64 ftello
+#define fseeko64 fseeko
+#endif
+#ifdef _MSC_VER
+ #define fopen64 fopen
+ #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC)))
+ #define ftello64 _ftelli64
+ #define fseeko64 _fseeki64
+ #else // old MSC
+ #define ftello64 ftell
+ #define fseeko64 fseek
+ #endif
+#endif
+#endif
+
+/*
+#ifndef ZPOS64_T
+ #ifdef _WIN32
+ #define ZPOS64_T fpos_t
+ #else
+ #include <stdint.h>
+ #define ZPOS64_T uint64_t
+ #endif
+#endif
+*/
+
+#ifdef HAVE_MINIZIP64_CONF_H
+#include "mz64conf.h"
+#endif
+
+/* a type choosen by DEFINE */
+#ifdef HAVE_64BIT_INT_CUSTOM
+typedef 64BIT_INT_CUSTOM_TYPE ZPOS64_T;
+#else
+#ifdef HAS_STDINT_H
+#include "stdint.h"
+typedef uint64_t ZPOS64_T;
+#else
+
+/* Maximum unsigned 32-bit value used as placeholder for zip64 */
+#define MAXU32 0xffffffff
+
+#if defined(_MSC_VER) || defined(__BORLANDC__)
+typedef unsigned __int64 ZPOS64_T;
+#else
+typedef unsigned long long int ZPOS64_T;
+#endif
+#endif
+#endif
+
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#define ZLIB_FILEFUNC_SEEK_CUR (1)
+#define ZLIB_FILEFUNC_SEEK_END (2)
+#define ZLIB_FILEFUNC_SEEK_SET (0)
+
+#define ZLIB_FILEFUNC_MODE_READ (1)
+#define ZLIB_FILEFUNC_MODE_WRITE (2)
+#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
+
+#define ZLIB_FILEFUNC_MODE_EXISTING (4)
+#define ZLIB_FILEFUNC_MODE_CREATE (8)
+
+
+#ifndef ZCALLBACK
+ #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
+ #define ZCALLBACK CALLBACK
+ #else
+ #define ZCALLBACK
+ #endif
+#endif
+
+
+
+
+typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
+typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
+typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
+typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
+typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
+
+typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
+typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
+
+
+/* here is the "old" 32 bits structure structure */
+typedef struct zlib_filefunc_def_s
+{
+ open_file_func zopen_file;
+ read_file_func zread_file;
+ write_file_func zwrite_file;
+ tell_file_func ztell_file;
+ seek_file_func zseek_file;
+ close_file_func zclose_file;
+ testerror_file_func zerror_file;
+ voidpf opaque;
+} zlib_filefunc_def;
+
+typedef ZPOS64_T (ZCALLBACK *tell64_file_func) OF((voidpf opaque, voidpf stream));
+typedef long (ZCALLBACK *seek64_file_func) OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
+typedef voidpf (ZCALLBACK *open64_file_func) OF((voidpf opaque, const void* filename, int mode));
+
+typedef struct zlib_filefunc64_def_s
+{
+ open64_file_func zopen64_file;
+ read_file_func zread_file;
+ write_file_func zwrite_file;
+ tell64_file_func ztell64_file;
+ seek64_file_func zseek64_file;
+ close_file_func zclose_file;
+ testerror_file_func zerror_file;
+ voidpf opaque;
+} zlib_filefunc64_def;
+
+void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def));
+void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
+
+/* now internal definition, only for zip.c and unzip.h */
+typedef struct zlib_filefunc64_32_def_s
+{
+ zlib_filefunc64_def zfile_func64;
+ open_file_func zopen32_file;
+ tell_file_func ztell32_file;
+ seek_file_func zseek32_file;
+} zlib_filefunc64_32_def;
+
+
+#define ZREAD64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zread_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size))
+#define ZWRITE64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zwrite_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size))
+//#define ZTELL64(filefunc,filestream) ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))
+//#define ZSEEK64(filefunc,filestream,pos,mode) ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))
+#define ZCLOSE64(filefunc,filestream) ((*((filefunc).zfile_func64.zclose_file)) ((filefunc).zfile_func64.opaque,filestream))
+#define ZERROR64(filefunc,filestream) ((*((filefunc).zfile_func64.zerror_file)) ((filefunc).zfile_func64.opaque,filestream))
+
+voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode));
+long call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin));
+ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream));
+
+void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32);
+
+#define ZOPEN64(filefunc,filename,mode) (call_zopen64((&(filefunc)),(filename),(mode)))
+#define ZTELL64(filefunc,filestream) (call_ztell64((&(filefunc)),(filestream)))
+#define ZSEEK64(filefunc,filestream,pos,mode) (call_zseek64((&(filefunc)),(filestream),(pos),(mode)))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/backend/epub/minizip/unzip.c b/backend/epub/minizip/unzip.c
new file mode 100644
index 00000000..90935043
--- /dev/null
+++ b/backend/epub/minizip/unzip.c
@@ -0,0 +1,2125 @@
+/* unzip.c -- IO for uncompress .zip files using zlib
+ Version 1.1, February 14h, 2010
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Modifications of Unzip for Zip64
+ Copyright (C) 2007-2008 Even Rouault
+
+ Modifications for Zip64 support on both zip and unzip
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+ For more info read MiniZip_info.txt
+
+
+ ------------------------------------------------------------------------------------
+ Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of
+ compatibility with older software. The following is from the original crypt.c.
+ Code woven in by Terry Thorsen 1/2003.
+
+ Copyright (c) 1990-2000 Info-ZIP. All rights reserved.
+
+ See the accompanying file LICENSE, version 2000-Apr-09 or later
+ (the contents of which are also included in zip.h) for terms of use.
+ If, for some reason, all these files are missing, the Info-ZIP license
+ also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
+
+ crypt.c (full version) by Info-ZIP. Last revised: [see crypt.h]
+
+ The encryption/decryption parts of this source code (as opposed to the
+ non-echoing password parts) were originally written in Europe. The
+ whole source package can be freely distributed, including from the USA.
+ (Prior to January 2000, re-export from the US was a violation of US law.)
+
+ This encryption code is a direct transcription of the algorithm from
+ Roger Schlafly, described by Phil Katz in the file appnote.txt. This
+ file (appnote.txt) is distributed with the PKZIP program (even in the
+ version without encryption capabilities).
+
+ ------------------------------------------------------------------------------------
+
+ Changes in unzip.c
+
+ 2007-2008 - Even Rouault - Addition of cpl_unzGetCurrentFileZStreamPos
+ 2007-2008 - Even Rouault - Decoration of symbol names unz* -> cpl_unz*
+ 2007-2008 - Even Rouault - Remove old C style function prototypes
+ 2007-2008 - Even Rouault - Add unzip support for ZIP64
+
+ Copyright (C) 2007-2008 Even Rouault
+
+
+ Oct-2009 - Mathias Svensson - Removed cpl_* from symbol names (Even Rouault added them but since this is now moved to a new project (minizip64) I renamed them again).
+ Oct-2009 - Mathias Svensson - Fixed problem if uncompressed size was > 4G and compressed size was <4G
+ should only read the compressed/uncompressed size from the Zip64 format if
+ the size from normal header was 0xFFFFFFFF
+ Oct-2009 - Mathias Svensson - Applied some bug fixes from paches recived from Gilles Vollant
+ Oct-2009 - Mathias Svensson - Applied support to unzip files with compression mathod BZIP2 (bzip2 lib is required)
+ Patch created by Daniel Borca
+
+ Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer
+
+ Copyright (C) 1998 - 2010 Gilles Vollant, Even Rouault, Mathias Svensson
+
+*/
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef NOUNCRYPT
+ #define NOUNCRYPT
+#endif
+
+#include "zlib.h"
+#include "unzip.h"
+
+#ifdef STDC
+# include <stddef.h>
+# include <string.h>
+# include <stdlib.h>
+#endif
+#ifdef NO_ERRNO_H
+ extern int errno;
+#else
+# include <errno.h>
+#endif
+
+
+#ifndef local
+# define local static
+#endif
+/* compile with -Dlocal if your debugger can't find static symbols */
+
+
+#ifndef CASESENSITIVITYDEFAULT_NO
+# if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)
+# define CASESENSITIVITYDEFAULT_NO
+# endif
+#endif
+
+
+#ifndef UNZ_BUFSIZE
+#define UNZ_BUFSIZE (16384)
+#endif
+
+#ifndef UNZ_MAXFILENAMEINZIP
+#define UNZ_MAXFILENAMEINZIP (256)
+#endif
+
+#ifndef ALLOC
+# define ALLOC(size) (malloc(size))
+#endif
+#ifndef TRYFREE
+# define TRYFREE(p) {if (p) free(p);}
+#endif
+
+#define SIZECENTRALDIRITEM (0x2e)
+#define SIZEZIPLOCALHEADER (0x1e)
+
+
+const char unz_copyright[] =
+ " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
+
+/* unz_file_info_interntal contain internal info about a file in zipfile*/
+typedef struct unz_file_info64_internal_s
+{
+ ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */
+} unz_file_info64_internal;
+
+
+/* file_in_zip_read_info_s contain internal information about a file in zipfile,
+ when reading and decompress it */
+typedef struct
+{
+ char *read_buffer; /* internal buffer for compressed data */
+ z_stream stream; /* zLib stream structure for inflate */
+
+#ifdef HAVE_BZIP2
+ bz_stream bstream; /* bzLib stream structure for bziped */
+#endif
+
+ ZPOS64_T pos_in_zipfile; /* position in byte on the zipfile, for fseek*/
+ uLong stream_initialised; /* flag set if stream structure is initialised*/
+
+ ZPOS64_T offset_local_extrafield;/* offset of the local extra field */
+ uInt size_local_extrafield;/* size of the local extra field */
+ ZPOS64_T pos_local_extrafield; /* position in the local extra field in read*/
+ ZPOS64_T total_out_64;
+
+ uLong crc32; /* crc32 of all data uncompressed */
+ uLong crc32_wait; /* crc32 we must obtain after decompress all */
+ ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */
+ ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/
+ zlib_filefunc64_32_def z_filefunc;
+ voidpf filestream; /* io structore of the zipfile */
+ uLong compression_method; /* compression method (0==store) */
+ ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+ int raw;
+} file_in_zip64_read_info_s;
+
+
+/* unz64_s contain internal information about the zipfile
+*/
+typedef struct
+{
+ zlib_filefunc64_32_def z_filefunc;
+ int is64bitOpenFunction;
+ voidpf filestream; /* io structore of the zipfile */
+ unz_global_info64 gi; /* public global information */
+ ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+ ZPOS64_T num_file; /* number of the current file in the zipfile*/
+ ZPOS64_T pos_in_central_dir; /* pos of the current file in the central dir*/
+ ZPOS64_T current_file_ok; /* flag about the usability of the current file*/
+ ZPOS64_T central_pos; /* position of the beginning of the central dir*/
+
+ ZPOS64_T size_central_dir; /* size of the central directory */
+ ZPOS64_T offset_central_dir; /* offset of start of central directory with
+ respect to the starting disk number */
+
+ unz_file_info64 cur_file_info; /* public info about the current file in zip*/
+ unz_file_info64_internal cur_file_info_internal; /* private info about it*/
+ file_in_zip64_read_info_s* pfile_in_zip_read; /* structure about the current
+ file if we are decompressing it */
+ int encrypted;
+
+ int isZip64;
+
+# ifndef NOUNCRYPT
+ unsigned long keys[3]; /* keys defining the pseudo-random sequence */
+ const z_crc_t* pcrc_32_tab;
+# endif
+} unz64_s;
+
+
+#ifndef NOUNCRYPT
+#include "crypt.h"
+#endif
+
+/* ===========================================================================
+ Read a byte from a gz_stream; update next_in and avail_in. Return EOF
+ for end of file.
+ IN assertion: the stream s has been sucessfully opened for reading.
+*/
+
+
+local int unz64local_getByte OF((
+ const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream,
+ int *pi));
+
+local int unz64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi)
+{
+ unsigned char c;
+ int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1);
+ if (err==1)
+ {
+ *pi = (int)c;
+ return UNZ_OK;
+ }
+ else
+ {
+ if (ZERROR64(*pzlib_filefunc_def,filestream))
+ return UNZ_ERRNO;
+ else
+ return UNZ_EOF;
+ }
+}
+
+
+/* ===========================================================================
+ Reads a long in LSB order from the given gz_stream. Sets
+*/
+local int unz64local_getShort OF((
+ const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream,
+ uLong *pX));
+
+local int unz64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream,
+ uLong *pX)
+{
+ uLong x ;
+ int i = 0;
+ int err;
+
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x = (uLong)i;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((uLong)i)<<8;
+
+ if (err==UNZ_OK)
+ *pX = x;
+ else
+ *pX = 0;
+ return err;
+}
+
+local int unz64local_getLong OF((
+ const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream,
+ uLong *pX));
+
+local int unz64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream,
+ uLong *pX)
+{
+ uLong x ;
+ int i = 0;
+ int err;
+
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x = (uLong)i;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((uLong)i)<<8;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((uLong)i)<<16;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((uLong)i)<<24;
+
+ if (err==UNZ_OK)
+ *pX = x;
+ else
+ *pX = 0;
+ return err;
+}
+
+local int unz64local_getLong64 OF((
+ const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream,
+ ZPOS64_T *pX));
+
+
+local int unz64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream,
+ ZPOS64_T *pX)
+{
+ ZPOS64_T x ;
+ int i = 0;
+ int err;
+
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x = (ZPOS64_T)i;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<8;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<16;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<24;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<32;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<40;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<48;
+
+ if (err==UNZ_OK)
+ err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+ x |= ((ZPOS64_T)i)<<56;
+
+ if (err==UNZ_OK)
+ *pX = x;
+ else
+ *pX = 0;
+ return err;
+}
+
+/* My own strcmpi / strcasecmp */
+local int strcmpcasenosensitive_internal (const char* fileName1, const char* fileName2)
+{
+ for (;;)
+ {
+ char c1=*(fileName1++);
+ char c2=*(fileName2++);
+ if ((c1>='a') && (c1<='z'))
+ c1 -= 0x20;
+ if ((c2>='a') && (c2<='z'))
+ c2 -= 0x20;
+ if (c1=='\0')
+ return ((c2=='\0') ? 0 : -1);
+ if (c2=='\0')
+ return 1;
+ if (c1<c2)
+ return -1;
+ if (c1>c2)
+ return 1;
+ }
+}
+
+
+#ifdef CASESENSITIVITYDEFAULT_NO
+#define CASESENSITIVITYDEFAULTVALUE 2
+#else
+#define CASESENSITIVITYDEFAULTVALUE 1
+#endif
+
+#ifndef STRCMPCASENOSENTIVEFUNCTION
+#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal
+#endif
+
+/*
+ Compare two filename (fileName1,fileName2).
+ If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
+ If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
+ or strcasecmp)
+ If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
+ (like 1 on Unix, 2 on Windows)
+
+*/
+extern int ZEXPORT unzStringFileNameCompare (const char* fileName1,
+ const char* fileName2,
+ int iCaseSensitivity)
+
+{
+ if (iCaseSensitivity==0)
+ iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE;
+
+ if (iCaseSensitivity==1)
+ return strcmp(fileName1,fileName2);
+
+ return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2);
+}
+
+#ifndef BUFREADCOMMENT
+#define BUFREADCOMMENT (0x400)
+#endif
+
+/*
+ Locate the Central directory of a zipfile (at the end, just before
+ the global comment)
+*/
+local ZPOS64_T unz64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
+local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
+{
+ unsigned char* buf;
+ ZPOS64_T uSizeFile;
+ ZPOS64_T uBackRead;
+ ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+ ZPOS64_T uPosFound=0;
+
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+ return 0;
+
+
+ uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+ if (uMaxBack>uSizeFile)
+ uMaxBack = uSizeFile;
+
+ buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+ if (buf==NULL)
+ return 0;
+
+ uBackRead = 4;
+ while (uBackRead<uMaxBack)
+ {
+ uLong uReadSize;
+ ZPOS64_T uReadPos ;
+ int i;
+ if (uBackRead+BUFREADCOMMENT>uMaxBack)
+ uBackRead = uMaxBack;
+ else
+ uBackRead+=BUFREADCOMMENT;
+ uReadPos = uSizeFile-uBackRead ;
+
+ uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+ (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ break;
+
+ if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+ break;
+
+ for (i=(int)uReadSize-3; (i--)>0;)
+ if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
+ ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
+ {
+ uPosFound = uReadPos+i;
+ break;
+ }
+
+ if (uPosFound!=0)
+ break;
+ }
+ TRYFREE(buf);
+ return uPosFound;
+}
+
+
+/*
+ Locate the Central directory 64 of a zipfile (at the end, just before
+ the global comment)
+*/
+local ZPOS64_T unz64local_SearchCentralDir64 OF((
+ const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream));
+
+local ZPOS64_T unz64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def,
+ voidpf filestream)
+{
+ unsigned char* buf;
+ ZPOS64_T uSizeFile;
+ ZPOS64_T uBackRead;
+ ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+ ZPOS64_T uPosFound=0;
+ uLong uL;
+ ZPOS64_T relativeOffset;
+
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+ return 0;
+
+
+ uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+ if (uMaxBack>uSizeFile)
+ uMaxBack = uSizeFile;
+
+ buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+ if (buf==NULL)
+ return 0;
+
+ uBackRead = 4;
+ while (uBackRead<uMaxBack)
+ {
+ uLong uReadSize;
+ ZPOS64_T uReadPos;
+ int i;
+ if (uBackRead+BUFREADCOMMENT>uMaxBack)
+ uBackRead = uMaxBack;
+ else
+ uBackRead+=BUFREADCOMMENT;
+ uReadPos = uSizeFile-uBackRead ;
+
+ uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+ (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+ if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ break;
+
+ if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+ break;
+
+ for (i=(int)uReadSize-3; (i--)>0;)
+ if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
+ ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07))
+ {
+ uPosFound = uReadPos+i;
+ break;
+ }
+
+ if (uPosFound!=0)
+ break;
+ }
+ TRYFREE(buf);
+ if (uPosFound == 0)
+ return 0;
+
+ /* Zip64 end of central directory locator */
+ if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return 0;
+
+ /* the signature, already checked */
+ if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+ return 0;
+
+ /* number of the disk with the start of the zip64 end of central directory */
+ if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+ return 0;
+ if (uL != 0)
+ return 0;
+
+ /* relative offset of the zip64 end of central directory record */
+ if (unz64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=UNZ_OK)
+ return 0;
+
+ /* total number of disks */
+ if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+ return 0;
+ if (uL != 1)
+ return 0;
+
+ /* Goto end of central directory record */
+ if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return 0;
+
+ /* the signature */
+ if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+ return 0;
+
+ if (uL != 0x06064b50)
+ return 0;
+
+ return relativeOffset;
+}
+
+/*
+ Open a Zip file. path contain the full pathname (by example,
+ on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer
+ "zlib/zlib114.zip".
+ If the zipfile cannot be opened (file doesn't exist or in not valid), the
+ return value is NULL.
+ Else, the return value is a unzFile Handle, usable with other function
+ of this unzip package.
+*/
+local unzFile unzOpenInternal (const void *path,
+ zlib_filefunc64_32_def* pzlib_filefunc64_32_def,
+ int is64bitOpenFunction)
+{
+ unz64_s us;
+ unz64_s *s;
+ ZPOS64_T central_pos;
+ uLong uL;
+
+ uLong number_disk; /* number of the current dist, used for
+ spaning ZIP, unsupported, always 0*/
+ uLong number_disk_with_CD; /* number the the disk with central dir, used
+ for spaning ZIP, unsupported, always 0*/
+ ZPOS64_T number_entry_CD; /* total number of entries in
+ the central dir
+ (same than number_entry on nospan) */
+
+ int err=UNZ_OK;
+
+ if (unz_copyright[0]!=' ')
+ return NULL;
+
+ us.z_filefunc.zseek32_file = NULL;
+ us.z_filefunc.ztell32_file = NULL;
+ if (pzlib_filefunc64_32_def==NULL)
+ fill_fopen64_filefunc(&us.z_filefunc.zfile_func64);
+ else
+ us.z_filefunc = *pzlib_filefunc64_32_def;
+ us.is64bitOpenFunction = is64bitOpenFunction;
+
+
+
+ us.filestream = ZOPEN64(us.z_filefunc,
+ path,
+ ZLIB_FILEFUNC_MODE_READ |
+ ZLIB_FILEFUNC_MODE_EXISTING);
+ if (us.filestream==NULL)
+ return NULL;
+
+ central_pos = unz64local_SearchCentralDir64(&us.z_filefunc,us.filestream);
+ if (central_pos)
+ {
+ uLong uS;
+ ZPOS64_T uL64;
+
+ us.isZip64 = 1;
+
+ if (ZSEEK64(us.z_filefunc, us.filestream,
+ central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ err=UNZ_ERRNO;
+
+ /* the signature, already checked */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* size of zip64 end of central directory record */
+ if (unz64local_getLong64(&us.z_filefunc, us.filestream,&uL64)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* version made by */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* version needed to extract */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* number of this disk */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* number of the disk with the start of the central directory */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* total number of entries in the central directory on this disk */
+ if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* total number of entries in the central directory */
+ if (unz64local_getLong64(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if ((number_entry_CD!=us.gi.number_entry) ||
+ (number_disk_with_CD!=0) ||
+ (number_disk!=0))
+ err=UNZ_BADZIPFILE;
+
+ /* size of the central directory */
+ if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* offset of start of central directory with respect to the
+ starting disk number */
+ if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ us.gi.size_comment = 0;
+ }
+ else
+ {
+ central_pos = unz64local_SearchCentralDir(&us.z_filefunc,us.filestream);
+ if (central_pos==0)
+ err=UNZ_ERRNO;
+
+ us.isZip64 = 0;
+
+ if (ZSEEK64(us.z_filefunc, us.filestream,
+ central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ err=UNZ_ERRNO;
+
+ /* the signature, already checked */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* number of this disk */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* number of the disk with the start of the central directory */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* total number of entries in the central dir on this disk */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+ us.gi.number_entry = uL;
+
+ /* total number of entries in the central dir */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+ number_entry_CD = uL;
+
+ if ((number_entry_CD!=us.gi.number_entry) ||
+ (number_disk_with_CD!=0) ||
+ (number_disk!=0))
+ err=UNZ_BADZIPFILE;
+
+ /* size of the central directory */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+ us.size_central_dir = uL;
+
+ /* offset of start of central directory with respect to the
+ starting disk number */
+ if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+ us.offset_central_dir = uL;
+
+ /* zipfile comment length */
+ if (unz64local_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK)
+ err=UNZ_ERRNO;
+ }
+
+ if ((central_pos<us.offset_central_dir+us.size_central_dir) &&
+ (err==UNZ_OK))
+ err=UNZ_BADZIPFILE;
+
+ if (err!=UNZ_OK)
+ {
+ ZCLOSE64(us.z_filefunc, us.filestream);
+ return NULL;
+ }
+
+ us.byte_before_the_zipfile = central_pos -
+ (us.offset_central_dir+us.size_central_dir);
+ us.central_pos = central_pos;
+ us.pfile_in_zip_read = NULL;
+ us.encrypted = 0;
+
+
+ s=(unz64_s*)ALLOC(sizeof(unz64_s));
+ if( s != NULL)
+ {
+ *s=us;
+ unzGoToFirstFile((unzFile)s);
+ }
+ return (unzFile)s;
+}
+
+
+extern unzFile ZEXPORT unzOpen2 (const char *path,
+ zlib_filefunc_def* pzlib_filefunc32_def)
+{
+ if (pzlib_filefunc32_def != NULL)
+ {
+ zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+ fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
+ return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 0);
+ }
+ else
+ return unzOpenInternal(path, NULL, 0);
+}
+
+extern unzFile ZEXPORT unzOpen2_64 (const void *path,
+ zlib_filefunc64_def* pzlib_filefunc_def)
+{
+ if (pzlib_filefunc_def != NULL)
+ {
+ zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+ zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
+ zlib_filefunc64_32_def_fill.ztell32_file = NULL;
+ zlib_filefunc64_32_def_fill.zseek32_file = NULL;
+ return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 1);
+ }
+ else
+ return unzOpenInternal(path, NULL, 1);
+}
+
+extern unzFile ZEXPORT unzOpen (const char *path)
+{
+ return unzOpenInternal(path, NULL, 0);
+}
+
+extern unzFile ZEXPORT unzOpen64 (const void *path)
+{
+ return unzOpenInternal(path, NULL, 1);
+}
+
+/*
+ Close a ZipFile opened with unzOpen.
+ If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
+ these files MUST be closed with unzCloseCurrentFile before call unzClose.
+ return UNZ_OK if there is no problem. */
+extern int ZEXPORT unzClose (unzFile file)
+{
+ unz64_s* s;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+
+ if (s->pfile_in_zip_read!=NULL)
+ unzCloseCurrentFile(file);
+
+ ZCLOSE64(s->z_filefunc, s->filestream);
+ TRYFREE(s);
+ return UNZ_OK;
+}
+
+
+/*
+ Write info about the ZipFile in the *pglobal_info structure.
+ No preparation of the structure is needed
+ return UNZ_OK if there is no problem. */
+extern int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_info)
+{
+ unz64_s* s;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ *pglobal_info=s->gi;
+ return UNZ_OK;
+}
+
+extern int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info32)
+{
+ unz64_s* s;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ /* to do : check if number_entry is not truncated */
+ pglobal_info32->number_entry = (uLong)s->gi.number_entry;
+ pglobal_info32->size_comment = s->gi.size_comment;
+ return UNZ_OK;
+}
+/*
+ Translate date/time from Dos format to tm_unz (readable more easilty)
+*/
+local void unz64local_DosDateToTmuDate (ZPOS64_T ulDosDate, tm_unz* ptm)
+{
+ ZPOS64_T uDate;
+ uDate = (ZPOS64_T)(ulDosDate>>16);
+ ptm->tm_mday = (uInt)(uDate&0x1f) ;
+ ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ;
+ ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ;
+
+ ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800);
+ ptm->tm_min = (uInt) ((ulDosDate&0x7E0)/0x20) ;
+ ptm->tm_sec = (uInt) (2*(ulDosDate&0x1f)) ;
+}
+
+/*
+ Get Info about the current file in the zipfile, with internal only info
+*/
+local int unz64local_GetCurrentFileInfoInternal OF((unzFile file,
+ unz_file_info64 *pfile_info,
+ unz_file_info64_internal
+ *pfile_info_internal,
+ char *szFileName,
+ uLong fileNameBufferSize,
+ void *extraField,
+ uLong extraFieldBufferSize,
+ char *szComment,
+ uLong commentBufferSize));
+
+local int unz64local_GetCurrentFileInfoInternal (unzFile file,
+ unz_file_info64 *pfile_info,
+ unz_file_info64_internal
+ *pfile_info_internal,
+ char *szFileName,
+ uLong fileNameBufferSize,
+ void *extraField,
+ uLong extraFieldBufferSize,
+ char *szComment,
+ uLong commentBufferSize)
+{
+ unz64_s* s;
+ unz_file_info64 file_info;
+ unz_file_info64_internal file_info_internal;
+ int err=UNZ_OK;
+ uLong uMagic;
+ long lSeek=0;
+ uLong uL;
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ if (ZSEEK64(s->z_filefunc, s->filestream,
+ s->pos_in_central_dir+s->byte_before_the_zipfile,
+ ZLIB_FILEFUNC_SEEK_SET)!=0)
+ err=UNZ_ERRNO;
+
+
+ /* we check the magic */
+ if (err==UNZ_OK)
+ {
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
+ err=UNZ_ERRNO;
+ else if (uMagic!=0x02014b50)
+ err=UNZ_BADZIPFILE;
+ }
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ unz64local_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);
+
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+ err=UNZ_ERRNO;
+ file_info.compressed_size = uL;
+
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+ err=UNZ_ERRNO;
+ file_info.uncompressed_size = uL;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ // relative offset of local header
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+ err=UNZ_ERRNO;
+ file_info_internal.offset_curfile = uL;
+
+ lSeek+=file_info.size_filename;
+ if ((err==UNZ_OK) && (szFileName!=NULL))
+ {
+ uLong uSizeRead ;
+ if (file_info.size_filename<fileNameBufferSize)
+ {
+ *(szFileName+file_info.size_filename)='\0';
+ uSizeRead = file_info.size_filename;
+ }
+ else
+ uSizeRead = fileNameBufferSize;
+
+ if ((file_info.size_filename>0) && (fileNameBufferSize>0))
+ if (ZREAD64(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead)
+ err=UNZ_ERRNO;
+ lSeek -= uSizeRead;
+ }
+
+ // Read extrafield
+ if ((err==UNZ_OK) && (extraField!=NULL))
+ {
+ ZPOS64_T uSizeRead ;
+ if (file_info.size_file_extra<extraFieldBufferSize)
+ uSizeRead = file_info.size_file_extra;
+ else
+ uSizeRead = extraFieldBufferSize;
+
+ if (lSeek!=0)
+ {
+ if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+ lSeek=0;
+ else
+ err=UNZ_ERRNO;
+ }
+
+ if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))
+ if (ZREAD64(s->z_filefunc, s->filestream,extraField,(uLong)uSizeRead)!=uSizeRead)
+ err=UNZ_ERRNO;
+
+ lSeek += file_info.size_file_extra - (uLong)uSizeRead;
+ }
+ else
+ lSeek += file_info.size_file_extra;
+
+
+ if ((err==UNZ_OK) && (file_info.size_file_extra != 0))
+ {
+ uLong acc = 0;
+
+ // since lSeek now points to after the extra field we need to move back
+ lSeek -= file_info.size_file_extra;
+
+ if (lSeek!=0)
+ {
+ if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+ lSeek=0;
+ else
+ err=UNZ_ERRNO;
+ }
+
+ while(acc < file_info.size_file_extra)
+ {
+ uLong headerId;
+ uLong dataSize;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&headerId) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&dataSize) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* ZIP64 extra fields */
+ if (headerId == 0x0001)
+ {
+ uLong uL;
+
+ if(file_info.uncompressed_size == MAXU32)
+ {
+ if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)
+ err=UNZ_ERRNO;
+ }
+
+ if(file_info.compressed_size == MAXU32)
+ {
+ if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK)
+ err=UNZ_ERRNO;
+ }
+
+ if(file_info_internal.offset_curfile == MAXU32)
+ {
+ /* Relative Header offset */
+ if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK)
+ err=UNZ_ERRNO;
+ }
+
+ if(file_info.disk_num_start == MAXU32)
+ {
+ /* Disk Start Number */
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+ err=UNZ_ERRNO;
+ }
+
+ }
+ else
+ {
+ if (ZSEEK64(s->z_filefunc, s->filestream,dataSize,ZLIB_FILEFUNC_SEEK_CUR)!=0)
+ err=UNZ_ERRNO;
+ }
+
+ acc += 2 + 2 + dataSize;
+ }
+ }
+
+ if ((err==UNZ_OK) && (szComment!=NULL))
+ {
+ uLong uSizeRead ;
+ if (file_info.size_file_comment<commentBufferSize)
+ {
+ *(szComment+file_info.size_file_comment)='\0';
+ uSizeRead = file_info.size_file_comment;
+ }
+ else
+ uSizeRead = commentBufferSize;
+
+ if (lSeek!=0)
+ {
+ if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+ lSeek=0;
+ else
+ err=UNZ_ERRNO;
+ }
+
+ if ((file_info.size_file_comment>0) && (commentBufferSize>0))
+ if (ZREAD64(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead)
+ err=UNZ_ERRNO;
+ lSeek+=file_info.size_file_comment - uSizeRead;
+ }
+ else
+ lSeek+=file_info.size_file_comment;
+
+
+ if ((err==UNZ_OK) && (pfile_info!=NULL))
+ *pfile_info=file_info;
+
+ if ((err==UNZ_OK) && (pfile_info_internal!=NULL))
+ *pfile_info_internal=file_info_internal;
+
+ return err;
+}
+
+
+
+/*
+ Write info about the ZipFile in the *pglobal_info structure.
+ No preparation of the structure is needed
+ return UNZ_OK if there is no problem.
+*/
+extern int ZEXPORT unzGetCurrentFileInfo64 (unzFile file,
+ unz_file_info64 * pfile_info,
+ char * szFileName, uLong fileNameBufferSize,
+ void *extraField, uLong extraFieldBufferSize,
+ char* szComment, uLong commentBufferSize)
+{
+ return unz64local_GetCurrentFileInfoInternal(file,pfile_info,NULL,
+ szFileName,fileNameBufferSize,
+ extraField,extraFieldBufferSize,
+ szComment,commentBufferSize);
+}
+
+extern int ZEXPORT unzGetCurrentFileInfo (unzFile file,
+ unz_file_info * pfile_info,
+ char * szFileName, uLong fileNameBufferSize,
+ void *extraField, uLong extraFieldBufferSize,
+ char* szComment, uLong commentBufferSize)
+{
+ int err;
+ unz_file_info64 file_info64;
+ err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL,
+ szFileName,fileNameBufferSize,
+ extraField,extraFieldBufferSize,
+ szComment,commentBufferSize);
+ if ((err==UNZ_OK) && (pfile_info != NULL))
+ {
+ pfile_info->version = file_info64.version;
+ pfile_info->version_needed = file_info64.version_needed;
+ pfile_info->flag = file_info64.flag;
+ pfile_info->compression_method = file_info64.compression_method;
+ pfile_info->dosDate = file_info64.dosDate;
+ pfile_info->crc = file_info64.crc;
+
+ pfile_info->size_filename = file_info64.size_filename;
+ pfile_info->size_file_extra = file_info64.size_file_extra;
+ pfile_info->size_file_comment = file_info64.size_file_comment;
+
+ pfile_info->disk_num_start = file_info64.disk_num_start;
+ pfile_info->internal_fa = file_info64.internal_fa;
+ pfile_info->external_fa = file_info64.external_fa;
+
+ pfile_info->tmu_date = file_info64.tmu_date,
+
+
+ pfile_info->compressed_size = (uLong)file_info64.compressed_size;
+ pfile_info->uncompressed_size = (uLong)file_info64.uncompressed_size;
+
+ }
+ return err;
+}
+/*
+ Set the current file of the zipfile to the first file.
+ return UNZ_OK if there is no problem
+*/
+extern int ZEXPORT unzGoToFirstFile (unzFile file)
+{
+ int err=UNZ_OK;
+ unz64_s* s;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ s->pos_in_central_dir=s->offset_central_dir;
+ s->num_file=0;
+ err=unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ &s->cur_file_info_internal,
+ NULL,0,NULL,0,NULL,0);
+ s->current_file_ok = (err == UNZ_OK);
+ return err;
+}
+
+/*
+ Set the current file of the zipfile to the next file.
+ return UNZ_OK if there is no problem
+ return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
+*/
+extern int ZEXPORT unzGoToNextFile (unzFile file)
+{
+ unz64_s* s;
+ int err;
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ if (!s->current_file_ok)
+ return UNZ_END_OF_LIST_OF_FILE;
+ if (s->gi.number_entry != 0xffff) /* 2^16 files overflow hack */
+ if (s->num_file+1==s->gi.number_entry)
+ return UNZ_END_OF_LIST_OF_FILE;
+
+ s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename +
+ s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ;
+ s->num_file++;
+ err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ &s->cur_file_info_internal,
+ NULL,0,NULL,0,NULL,0);
+ s->current_file_ok = (err == UNZ_OK);
+ return err;
+}
+
+
+/*
+ Try locate the file szFileName in the zipfile.
+ For the iCaseSensitivity signification, see unzStringFileNameCompare
+
+ return value :
+ UNZ_OK if the file is found. It becomes the current file.
+ UNZ_END_OF_LIST_OF_FILE if the file is not found
+*/
+extern int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity)
+{
+ unz64_s* s;
+ int err;
+
+ /* We remember the 'current' position in the file so that we can jump
+ * back there if we fail.
+ */
+ unz_file_info64 cur_file_infoSaved;
+ unz_file_info64_internal cur_file_info_internalSaved;
+ ZPOS64_T num_fileSaved;
+ ZPOS64_T pos_in_central_dirSaved;
+
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+
+ if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP)
+ return UNZ_PARAMERROR;
+
+ s=(unz64_s*)file;
+ if (!s->current_file_ok)
+ return UNZ_END_OF_LIST_OF_FILE;
+
+ /* Save the current state */
+ num_fileSaved = s->num_file;
+ pos_in_central_dirSaved = s->pos_in_central_dir;
+ cur_file_infoSaved = s->cur_file_info;
+ cur_file_info_internalSaved = s->cur_file_info_internal;
+
+ err = unzGoToFirstFile(file);
+
+ while (err == UNZ_OK)
+ {
+ char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1];
+ err = unzGetCurrentFileInfo64(file,NULL,
+ szCurrentFileName,sizeof(szCurrentFileName)-1,
+ NULL,0,NULL,0);
+ if (err == UNZ_OK)
+ {
+ if (unzStringFileNameCompare(szCurrentFileName,
+ szFileName,iCaseSensitivity)==0)
+ return UNZ_OK;
+ err = unzGoToNextFile(file);
+ }
+ }
+
+ /* We failed, so restore the state of the 'current file' to where we
+ * were.
+ */
+ s->num_file = num_fileSaved ;
+ s->pos_in_central_dir = pos_in_central_dirSaved ;
+ s->cur_file_info = cur_file_infoSaved;
+ s->cur_file_info_internal = cur_file_info_internalSaved;
+ return err;
+}
+
+
+/*
+///////////////////////////////////////////
+// Contributed by Ryan Haksi (mailto://[email protected])
+// I need random access
+//
+// Further optimization could be realized by adding an ability
+// to cache the directory in memory. The goal being a single
+// comprehensive file read to put the file I need in a memory.
+*/
+
+/*
+typedef struct unz_file_pos_s
+{
+ ZPOS64_T pos_in_zip_directory; // offset in file
+ ZPOS64_T num_of_file; // # of file
+} unz_file_pos;
+*/
+
+extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos* file_pos)
+{
+ unz64_s* s;
+
+ if (file==NULL || file_pos==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ if (!s->current_file_ok)
+ return UNZ_END_OF_LIST_OF_FILE;
+
+ file_pos->pos_in_zip_directory = s->pos_in_central_dir;
+ file_pos->num_of_file = s->num_file;
+
+ return UNZ_OK;
+}
+
+extern int ZEXPORT unzGetFilePos(
+ unzFile file,
+ unz_file_pos* file_pos)
+{
+ unz64_file_pos file_pos64;
+ int err = unzGetFilePos64(file,&file_pos64);
+ if (err==UNZ_OK)
+ {
+ file_pos->pos_in_zip_directory = (uLong)file_pos64.pos_in_zip_directory;
+ file_pos->num_of_file = (uLong)file_pos64.num_of_file;
+ }
+ return err;
+}
+
+extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos)
+{
+ unz64_s* s;
+ int err;
+
+ if (file==NULL || file_pos==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+
+ /* jump to the right spot */
+ s->pos_in_central_dir = file_pos->pos_in_zip_directory;
+ s->num_file = file_pos->num_of_file;
+
+ /* set the current file */
+ err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ &s->cur_file_info_internal,
+ NULL,0,NULL,0,NULL,0);
+ /* return results */
+ s->current_file_ok = (err == UNZ_OK);
+ return err;
+}
+
+extern int ZEXPORT unzGoToFilePos(
+ unzFile file,
+ unz_file_pos* file_pos)
+{
+ unz64_file_pos file_pos64;
+ if (file_pos == NULL)
+ return UNZ_PARAMERROR;
+
+ file_pos64.pos_in_zip_directory = file_pos->pos_in_zip_directory;
+ file_pos64.num_of_file = file_pos->num_of_file;
+ return unzGoToFilePos64(file,&file_pos64);
+}
+
+/*
+// Unzip Helper Functions - should be here?
+///////////////////////////////////////////
+*/
+
+/*
+ Read the local header of the current zipfile
+ Check the coherency of the local header and info in the end of central
+ directory about this file
+ store in *piSizeVar the size of extra info in local header
+ (filename and size of extra field data)
+*/
+local int unz64local_CheckCurrentFileCoherencyHeader (unz64_s* s, uInt* piSizeVar,
+ ZPOS64_T * poffset_local_extrafield,
+ uInt * psize_local_extrafield)
+{
+ uLong uMagic,uData,uFlags;
+ uLong size_filename;
+ uLong size_extra_field;
+ int err=UNZ_OK;
+
+ *piSizeVar = 0;
+ *poffset_local_extrafield = 0;
+ *psize_local_extrafield = 0;
+
+ if (ZSEEK64(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile +
+ s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return UNZ_ERRNO;
+
+
+ if (err==UNZ_OK)
+ {
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
+ err=UNZ_ERRNO;
+ else if (uMagic!=0x04034b50)
+ err=UNZ_BADZIPFILE;
+ }
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
+ err=UNZ_ERRNO;
+/*
+ else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion))
+ err=UNZ_BADZIPFILE;
+*/
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
+ err=UNZ_ERRNO;
+ else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method))
+ err=UNZ_BADZIPFILE;
+
+ if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) &&
+/* #ifdef HAVE_BZIP2 */
+ (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
+/* #endif */
+ (s->cur_file_info.compression_method!=Z_DEFLATED))
+ err=UNZ_BADZIPFILE;
+
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */
+ err=UNZ_ERRNO;
+
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */
+ err=UNZ_ERRNO;
+ else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && ((uFlags & 8)==0))
+ err=UNZ_BADZIPFILE;
+
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */
+ err=UNZ_ERRNO;
+ else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && ((uFlags & 8)==0))
+ err=UNZ_BADZIPFILE;
+
+ if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */
+ err=UNZ_ERRNO;
+ else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && ((uFlags & 8)==0))
+ err=UNZ_BADZIPFILE;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK)
+ err=UNZ_ERRNO;
+ else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename))
+ err=UNZ_BADZIPFILE;
+
+ *piSizeVar += (uInt)size_filename;
+
+ if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK)
+ err=UNZ_ERRNO;
+ *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile +
+ SIZEZIPLOCALHEADER + size_filename;
+ *psize_local_extrafield = (uInt)size_extra_field;
+
+ *piSizeVar += (uInt)size_extra_field;
+
+ return err;
+}
+
+/*
+ Open for reading data the current file in the zipfile.
+ If there is no error and the file is opened, the return value is UNZ_OK.
+*/
+extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method,
+ int* level, int raw, const char* password)
+{
+ int err=UNZ_OK;
+ uInt iSizeVar;
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
+ ZPOS64_T offset_local_extrafield; /* offset of the local extra field */
+ uInt size_local_extrafield; /* size of the local extra field */
+# ifndef NOUNCRYPT
+ char source[12];
+# else
+ if (password != NULL)
+ return UNZ_PARAMERROR;
+# endif
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ if (!s->current_file_ok)
+ return UNZ_PARAMERROR;
+
+ if (s->pfile_in_zip_read != NULL)
+ unzCloseCurrentFile(file);
+
+ if (unz64local_CheckCurrentFileCoherencyHeader(s,&iSizeVar, &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK)
+ return UNZ_BADZIPFILE;
+
+ pfile_in_zip_read_info = (file_in_zip64_read_info_s*)ALLOC(sizeof(file_in_zip64_read_info_s));
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_INTERNALERROR;
+
+ pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE);
+ pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield;
+ pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield;
+ pfile_in_zip_read_info->pos_local_extrafield=0;
+ pfile_in_zip_read_info->raw=raw;
+
+ if (pfile_in_zip_read_info->read_buffer==NULL)
+ {
+ TRYFREE(pfile_in_zip_read_info);
+ return UNZ_INTERNALERROR;
+ }
+
+ pfile_in_zip_read_info->stream_initialised=0;
+
+ if (method!=NULL)
+ *method = (int)s->cur_file_info.compression_method;
+
+ if (level!=NULL)
+ {
+ *level = 6;
+ switch (s->cur_file_info.flag & 0x06)
+ {
+ case 6 : *level = 1; break;
+ case 4 : *level = 2; break;
+ case 2 : *level = 9; break;
+ }
+ }
+
+ if ((s->cur_file_info.compression_method!=0) &&
+/* #ifdef HAVE_BZIP2 */
+ (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
+/* #endif */
+ (s->cur_file_info.compression_method!=Z_DEFLATED))
+
+ err=UNZ_BADZIPFILE;
+
+ pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc;
+ pfile_in_zip_read_info->crc32=0;
+ pfile_in_zip_read_info->total_out_64=0;
+ pfile_in_zip_read_info->compression_method = s->cur_file_info.compression_method;
+ pfile_in_zip_read_info->filestream=s->filestream;
+ pfile_in_zip_read_info->z_filefunc=s->z_filefunc;
+ pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile;
+
+ pfile_in_zip_read_info->stream.total_out = 0;
+
+ if ((s->cur_file_info.compression_method==Z_BZIP2ED) && (!raw))
+ {
+#ifdef HAVE_BZIP2
+ pfile_in_zip_read_info->bstream.bzalloc = (void *(*) (void *, int, int))0;
+ pfile_in_zip_read_info->bstream.bzfree = (free_func)0;
+ pfile_in_zip_read_info->bstream.opaque = (voidpf)0;
+ pfile_in_zip_read_info->bstream.state = (voidpf)0;
+
+ pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
+ pfile_in_zip_read_info->stream.zfree = (free_func)0;
+ pfile_in_zip_read_info->stream.opaque = (voidpf)0;
+ pfile_in_zip_read_info->stream.next_in = (voidpf)0;
+ pfile_in_zip_read_info->stream.avail_in = 0;
+
+ err=BZ2_bzDecompressInit(&pfile_in_zip_read_info->bstream, 0, 0);
+ if (err == Z_OK)
+ pfile_in_zip_read_info->stream_initialised=Z_BZIP2ED;
+ else
+ {
+ TRYFREE(pfile_in_zip_read_info);
+ return err;
+ }
+#else
+ pfile_in_zip_read_info->raw=1;
+#endif
+ }
+ else if ((s->cur_file_info.compression_method==Z_DEFLATED) && (!raw))
+ {
+ pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
+ pfile_in_zip_read_info->stream.zfree = (free_func)0;
+ pfile_in_zip_read_info->stream.opaque = (voidpf)0;
+ pfile_in_zip_read_info->stream.next_in = 0;
+ pfile_in_zip_read_info->stream.avail_in = 0;
+
+ err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS);
+ if (err == Z_OK)
+ pfile_in_zip_read_info->stream_initialised=Z_DEFLATED;
+ else
+ {
+ TRYFREE(pfile_in_zip_read_info);
+ return err;
+ }
+ /* windowBits is passed < 0 to tell that there is no zlib header.
+ * Note that in this case inflate *requires* an extra "dummy" byte
+ * after the compressed stream in order to complete decompression and
+ * return Z_STREAM_END.
+ * In unzip, i don't wait absolutely Z_STREAM_END because I known the
+ * size of both compressed and uncompressed data
+ */
+ }
+ pfile_in_zip_read_info->rest_read_compressed =
+ s->cur_file_info.compressed_size ;
+ pfile_in_zip_read_info->rest_read_uncompressed =
+ s->cur_file_info.uncompressed_size ;
+
+
+ pfile_in_zip_read_info->pos_in_zipfile =
+ s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER +
+ iSizeVar;
+
+ pfile_in_zip_read_info->stream.avail_in = (uInt)0;
+
+ s->pfile_in_zip_read = pfile_in_zip_read_info;
+ s->encrypted = 0;
+
+# ifndef NOUNCRYPT
+ if (password != NULL)
+ {
+ int i;
+ s->pcrc_32_tab = get_crc_table();
+ init_keys(password,s->keys,s->pcrc_32_tab);
+ if (ZSEEK64(s->z_filefunc, s->filestream,
+ s->pfile_in_zip_read->pos_in_zipfile +
+ s->pfile_in_zip_read->byte_before_the_zipfile,
+ SEEK_SET)!=0)
+ return UNZ_INTERNALERROR;
+ if(ZREAD64(s->z_filefunc, s->filestream,source, 12)<12)
+ return UNZ_INTERNALERROR;
+
+ for (i = 0; i<12; i++)
+ zdecode(s->keys,s->pcrc_32_tab,source[i]);
+
+ s->pfile_in_zip_read->pos_in_zipfile+=12;
+ s->encrypted=1;
+ }
+# endif
+
+
+ return UNZ_OK;
+}
+
+extern int ZEXPORT unzOpenCurrentFile (unzFile file)
+{
+ return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);
+}
+
+extern int ZEXPORT unzOpenCurrentFilePassword (unzFile file, const char* password)
+{
+ return unzOpenCurrentFile3(file, NULL, NULL, 0, password);
+}
+
+extern int ZEXPORT unzOpenCurrentFile2 (unzFile file, int* method, int* level, int raw)
+{
+ return unzOpenCurrentFile3(file, method, level, raw, NULL);
+}
+
+/** Addition for GDAL : START */
+
+extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file)
+{
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
+ s=(unz64_s*)file;
+ if (file==NULL)
+ return 0; //UNZ_PARAMERROR;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+ if (pfile_in_zip_read_info==NULL)
+ return 0; //UNZ_PARAMERROR;
+ return pfile_in_zip_read_info->pos_in_zipfile +
+ pfile_in_zip_read_info->byte_before_the_zipfile;
+}
+
+/** Addition for GDAL : END */
+
+/*
+ Read bytes from the current file.
+ buf contain buffer where data must be copied
+ len the size of buf.
+
+ return the number of byte copied if somes bytes are copied
+ return 0 if the end of file was reached
+ return <0 with error code if there is an error
+ (UNZ_ERRNO for IO error, or zLib error for uncompress error)
+*/
+extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len)
+{
+ int err=UNZ_OK;
+ uInt iRead = 0;
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_PARAMERROR;
+
+
+ if (pfile_in_zip_read_info->read_buffer == NULL)
+ return UNZ_END_OF_LIST_OF_FILE;
+ if (len==0)
+ return 0;
+
+ pfile_in_zip_read_info->stream.next_out = (Bytef*)buf;
+
+ pfile_in_zip_read_info->stream.avail_out = (uInt)len;
+
+ if ((len>pfile_in_zip_read_info->rest_read_uncompressed) &&
+ (!(pfile_in_zip_read_info->raw)))
+ pfile_in_zip_read_info->stream.avail_out =
+ (uInt)pfile_in_zip_read_info->rest_read_uncompressed;
+
+ if ((len>pfile_in_zip_read_info->rest_read_compressed+
+ pfile_in_zip_read_info->stream.avail_in) &&
+ (pfile_in_zip_read_info->raw))
+ pfile_in_zip_read_info->stream.avail_out =
+ (uInt)pfile_in_zip_read_info->rest_read_compressed+
+ pfile_in_zip_read_info->stream.avail_in;
+
+ while (pfile_in_zip_read_info->stream.avail_out>0)
+ {
+ if ((pfile_in_zip_read_info->stream.avail_in==0) &&
+ (pfile_in_zip_read_info->rest_read_compressed>0))
+ {
+ uInt uReadThis = UNZ_BUFSIZE;
+ if (pfile_in_zip_read_info->rest_read_compressed<uReadThis)
+ uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed;
+ if (uReadThis == 0)
+ return UNZ_EOF;
+ if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
+ pfile_in_zip_read_info->filestream,
+ pfile_in_zip_read_info->pos_in_zipfile +
+ pfile_in_zip_read_info->byte_before_the_zipfile,
+ ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return UNZ_ERRNO;
+ if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
+ pfile_in_zip_read_info->filestream,
+ pfile_in_zip_read_info->read_buffer,
+ uReadThis)!=uReadThis)
+ return UNZ_ERRNO;
+
+
+# ifndef NOUNCRYPT
+ if(s->encrypted)
+ {
+ uInt i;
+ for(i=0;i<uReadThis;i++)
+ pfile_in_zip_read_info->read_buffer[i] =
+ zdecode(s->keys,s->pcrc_32_tab,
+ pfile_in_zip_read_info->read_buffer[i]);
+ }
+# endif
+
+
+ pfile_in_zip_read_info->pos_in_zipfile += uReadThis;
+
+ pfile_in_zip_read_info->rest_read_compressed-=uReadThis;
+
+ pfile_in_zip_read_info->stream.next_in =
+ (Bytef*)pfile_in_zip_read_info->read_buffer;
+ pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis;
+ }
+
+ if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw))
+ {
+ uInt uDoCopy,i ;
+
+ if ((pfile_in_zip_read_info->stream.avail_in == 0) &&
+ (pfile_in_zip_read_info->rest_read_compressed == 0))
+ return (iRead==0) ? UNZ_EOF : iRead;
+
+ if (pfile_in_zip_read_info->stream.avail_out <
+ pfile_in_zip_read_info->stream.avail_in)
+ uDoCopy = pfile_in_zip_read_info->stream.avail_out ;
+ else
+ uDoCopy = pfile_in_zip_read_info->stream.avail_in ;
+
+ for (i=0;i<uDoCopy;i++)
+ *(pfile_in_zip_read_info->stream.next_out+i) =
+ *(pfile_in_zip_read_info->stream.next_in+i);
+
+ pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uDoCopy;
+
+ pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,
+ pfile_in_zip_read_info->stream.next_out,
+ uDoCopy);
+ pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy;
+ pfile_in_zip_read_info->stream.avail_in -= uDoCopy;
+ pfile_in_zip_read_info->stream.avail_out -= uDoCopy;
+ pfile_in_zip_read_info->stream.next_out += uDoCopy;
+ pfile_in_zip_read_info->stream.next_in += uDoCopy;
+ pfile_in_zip_read_info->stream.total_out += uDoCopy;
+ iRead += uDoCopy;
+ }
+ else if (pfile_in_zip_read_info->compression_method==Z_BZIP2ED)
+ {
+#ifdef HAVE_BZIP2
+ uLong uTotalOutBefore,uTotalOutAfter;
+ const Bytef *bufBefore;
+ uLong uOutThis;
+
+ pfile_in_zip_read_info->bstream.next_in = (char*)pfile_in_zip_read_info->stream.next_in;
+ pfile_in_zip_read_info->bstream.avail_in = pfile_in_zip_read_info->stream.avail_in;
+ pfile_in_zip_read_info->bstream.total_in_lo32 = pfile_in_zip_read_info->stream.total_in;
+ pfile_in_zip_read_info->bstream.total_in_hi32 = 0;
+ pfile_in_zip_read_info->bstream.next_out = (char*)pfile_in_zip_read_info->stream.next_out;
+ pfile_in_zip_read_info->bstream.avail_out = pfile_in_zip_read_info->stream.avail_out;
+ pfile_in_zip_read_info->bstream.total_out_lo32 = pfile_in_zip_read_info->stream.total_out;
+ pfile_in_zip_read_info->bstream.total_out_hi32 = 0;
+
+ uTotalOutBefore = pfile_in_zip_read_info->bstream.total_out_lo32;
+ bufBefore = (const Bytef *)pfile_in_zip_read_info->bstream.next_out;
+
+ err=BZ2_bzDecompress(&pfile_in_zip_read_info->bstream);
+
+ uTotalOutAfter = pfile_in_zip_read_info->bstream.total_out_lo32;
+ uOutThis = uTotalOutAfter-uTotalOutBefore;
+
+ pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
+
+ pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,bufBefore, (uInt)(uOutThis));
+ pfile_in_zip_read_info->rest_read_uncompressed -= uOutThis;
+ iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
+
+ pfile_in_zip_read_info->stream.next_in = (Bytef*)pfile_in_zip_read_info->bstream.next_in;
+ pfile_in_zip_read_info->stream.avail_in = pfile_in_zip_read_info->bstream.avail_in;
+ pfile_in_zip_read_info->stream.total_in = pfile_in_zip_read_info->bstream.total_in_lo32;
+ pfile_in_zip_read_info->stream.next_out = (Bytef*)pfile_in_zip_read_info->bstream.next_out;
+ pfile_in_zip_read_info->stream.avail_out = pfile_in_zip_read_info->bstream.avail_out;
+ pfile_in_zip_read_info->stream.total_out = pfile_in_zip_read_info->bstream.total_out_lo32;
+
+ if (err==BZ_STREAM_END)
+ return (iRead==0) ? UNZ_EOF : iRead;
+ if (err!=BZ_OK)
+ break;
+#endif
+ } // end Z_BZIP2ED
+ else
+ {
+ ZPOS64_T uTotalOutBefore,uTotalOutAfter;
+ const Bytef *bufBefore;
+ ZPOS64_T uOutThis;
+ int flush=Z_SYNC_FLUSH;
+
+ uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;
+ bufBefore = pfile_in_zip_read_info->stream.next_out;
+
+ /*
+ if ((pfile_in_zip_read_info->rest_read_uncompressed ==
+ pfile_in_zip_read_info->stream.avail_out) &&
+ (pfile_in_zip_read_info->rest_read_compressed == 0))
+ flush = Z_FINISH;
+ */
+ err=inflate(&pfile_in_zip_read_info->stream,flush);
+
+ if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL))
+ err = Z_DATA_ERROR;
+
+ uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;
+ uOutThis = uTotalOutAfter-uTotalOutBefore;
+
+ pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
+
+ pfile_in_zip_read_info->crc32 =
+ crc32(pfile_in_zip_read_info->crc32,bufBefore,
+ (uInt)(uOutThis));
+
+ pfile_in_zip_read_info->rest_read_uncompressed -=
+ uOutThis;
+
+ iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
+
+ if (err==Z_STREAM_END)
+ return (iRead==0) ? UNZ_EOF : iRead;
+ if (err!=Z_OK)
+ break;
+ }
+ }
+
+ if (err==Z_OK)
+ return iRead;
+ return err;
+}
+
+
+/*
+ Give the current position in uncompressed data
+*/
+extern z_off_t ZEXPORT unztell (unzFile file)
+{
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_PARAMERROR;
+
+ return (z_off_t)pfile_in_zip_read_info->stream.total_out;
+}
+
+extern ZPOS64_T ZEXPORT unztell64 (unzFile file)
+{
+
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
+ if (file==NULL)
+ return (ZPOS64_T)-1;
+ s=(unz64_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return (ZPOS64_T)-1;
+
+ return pfile_in_zip_read_info->total_out_64;
+}
+
+
+/*
+ return 1 if the end of file was reached, 0 elsewhere
+*/
+extern int ZEXPORT unzeof (unzFile file)
+{
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_PARAMERROR;
+
+ if (pfile_in_zip_read_info->rest_read_uncompressed == 0)
+ return 1;
+ else
+ return 0;
+}
+
+
+
+/*
+Read extra field from the current file (opened by unzOpenCurrentFile)
+This is the local-header version of the extra field (sometimes, there is
+more info in the local-header version than in the central-header)
+
+ if buf==NULL, it return the size of the local extra field that can be read
+
+ if buf!=NULL, len is the size of the buffer, the extra header is copied in
+ buf.
+ the return value is the number of bytes copied in buf, or (if <0)
+ the error code
+*/
+extern int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len)
+{
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
+ uInt read_now;
+ ZPOS64_T size_to_read;
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_PARAMERROR;
+
+ size_to_read = (pfile_in_zip_read_info->size_local_extrafield -
+ pfile_in_zip_read_info->pos_local_extrafield);
+
+ if (buf==NULL)
+ return (int)size_to_read;
+
+ if (len>size_to_read)
+ read_now = (uInt)size_to_read;
+ else
+ read_now = (uInt)len ;
+
+ if (read_now==0)
+ return 0;
+
+ if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
+ pfile_in_zip_read_info->filestream,
+ pfile_in_zip_read_info->offset_local_extrafield +
+ pfile_in_zip_read_info->pos_local_extrafield,
+ ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return UNZ_ERRNO;
+
+ if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
+ pfile_in_zip_read_info->filestream,
+ buf,read_now)!=read_now)
+ return UNZ_ERRNO;
+
+ return (int)read_now;
+}
+
+/*
+ Close the file in zip opened with unzOpenCurrentFile
+ Return UNZ_CRCERROR if all the file was read but the CRC is not good
+*/
+extern int ZEXPORT unzCloseCurrentFile (unzFile file)
+{
+ int err=UNZ_OK;
+
+ unz64_s* s;
+ file_in_zip64_read_info_s* pfile_in_zip_read_info;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_PARAMERROR;
+
+
+ if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) &&
+ (!pfile_in_zip_read_info->raw))
+ {
+ if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait)
+ err=UNZ_CRCERROR;
+ }
+
+
+ TRYFREE(pfile_in_zip_read_info->read_buffer);
+ pfile_in_zip_read_info->read_buffer = NULL;
+ if (pfile_in_zip_read_info->stream_initialised == Z_DEFLATED)
+ inflateEnd(&pfile_in_zip_read_info->stream);
+#ifdef HAVE_BZIP2
+ else if (pfile_in_zip_read_info->stream_initialised == Z_BZIP2ED)
+ BZ2_bzDecompressEnd(&pfile_in_zip_read_info->bstream);
+#endif
+
+
+ pfile_in_zip_read_info->stream_initialised = 0;
+ TRYFREE(pfile_in_zip_read_info);
+
+ s->pfile_in_zip_read=NULL;
+
+ return err;
+}
+
+
+/*
+ Get the global comment string of the ZipFile, in the szComment buffer.
+ uSizeBuf is the size of the szComment buffer.
+ return the number of byte copied or an error code <0
+*/
+extern int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uSizeBuf)
+{
+ unz64_s* s;
+ uLong uReadThis ;
+ if (file==NULL)
+ return (int)UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+
+ uReadThis = uSizeBuf;
+ if (uReadThis>s->gi.size_comment)
+ uReadThis = s->gi.size_comment;
+
+ if (ZSEEK64(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return UNZ_ERRNO;
+
+ if (uReadThis>0)
+ {
+ *szComment='\0';
+ if (ZREAD64(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis)
+ return UNZ_ERRNO;
+ }
+
+ if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment))
+ *(szComment+s->gi.size_comment)='\0';
+ return (int)uReadThis;
+}
+
+/* Additions by RX '2004 */
+extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file)
+{
+ unz64_s* s;
+
+ if (file==NULL)
+ return 0; //UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+ if (!s->current_file_ok)
+ return 0;
+ if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff)
+ if (s->num_file==s->gi.number_entry)
+ return 0;
+ return s->pos_in_central_dir;
+}
+
+extern uLong ZEXPORT unzGetOffset (unzFile file)
+{
+ ZPOS64_T offset64;
+
+ if (file==NULL)
+ return 0; //UNZ_PARAMERROR;
+ offset64 = unzGetOffset64(file);
+ return (uLong)offset64;
+}
+
+extern int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos)
+{
+ unz64_s* s;
+ int err;
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz64_s*)file;
+
+ s->pos_in_central_dir = pos;
+ s->num_file = s->gi.number_entry; /* hack */
+ err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ &s->cur_file_info_internal,
+ NULL,0,NULL,0,NULL,0);
+ s->current_file_ok = (err == UNZ_OK);
+ return err;
+}
+
+extern int ZEXPORT unzSetOffset (unzFile file, uLong pos)
+{
+ return unzSetOffset64(file,pos);
+}
diff --git a/backend/epub/minizip/unzip.h b/backend/epub/minizip/unzip.h
new file mode 100644
index 00000000..2104e391
--- /dev/null
+++ b/backend/epub/minizip/unzip.h
@@ -0,0 +1,437 @@
+/* unzip.h -- IO for uncompress .zip files using zlib
+ Version 1.1, February 14h, 2010
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Modifications of Unzip for Zip64
+ Copyright (C) 2007-2008 Even Rouault
+
+ Modifications for Zip64 support on both zip and unzip
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+ For more info read MiniZip_info.txt
+
+ ---------------------------------------------------------------------------------
+
+ Condition of use and distribution are the same than zlib :
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+
+ ---------------------------------------------------------------------------------
+
+ Changes
+
+ See header of unzip64.c
+
+*/
+
+#ifndef _unz64_H
+#define _unz64_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef _ZLIB_H
+#include "zlib.h"
+#endif
+
+#ifndef _ZLIBIOAPI_H
+#include "ioapi.h"
+#endif
+
+#ifdef HAVE_BZIP2
+#include "bzlib.h"
+#endif
+
+#define Z_BZIP2ED 12
+
+#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
+/* like the STRICT of WIN32, we define a pointer that cannot be converted
+ from (void*) without cast */
+typedef struct TagunzFile__ { int unused; } unzFile__;
+typedef unzFile__ *unzFile;
+#else
+typedef voidp unzFile;
+#endif
+
+
+#define UNZ_OK (0)
+#define UNZ_END_OF_LIST_OF_FILE (-100)
+#define UNZ_ERRNO (Z_ERRNO)
+#define UNZ_EOF (0)
+#define UNZ_PARAMERROR (-102)
+#define UNZ_BADZIPFILE (-103)
+#define UNZ_INTERNALERROR (-104)
+#define UNZ_CRCERROR (-105)
+
+/* tm_unz contain date/time info */
+typedef struct tm_unz_s
+{
+ uInt tm_sec; /* seconds after the minute - [0,59] */
+ uInt tm_min; /* minutes after the hour - [0,59] */
+ uInt tm_hour; /* hours since midnight - [0,23] */
+ uInt tm_mday; /* day of the month - [1,31] */
+ uInt tm_mon; /* months since January - [0,11] */
+ uInt tm_year; /* years - [1980..2044] */
+} tm_unz;
+
+/* unz_global_info structure contain global data about the ZIPfile
+ These data comes from the end of central dir */
+typedef struct unz_global_info64_s
+{
+ ZPOS64_T number_entry; /* total number of entries in
+ the central dir on this disk */
+ uLong size_comment; /* size of the global comment of the zipfile */
+} unz_global_info64;
+
+typedef struct unz_global_info_s
+{
+ uLong number_entry; /* total number of entries in
+ the central dir on this disk */
+ uLong size_comment; /* size of the global comment of the zipfile */
+} unz_global_info;
+
+/* unz_file_info contain information about a file in the zipfile */
+typedef struct unz_file_info64_s
+{
+ uLong version; /* version made by 2 bytes */
+ uLong version_needed; /* version needed to extract 2 bytes */
+ uLong flag; /* general purpose bit flag 2 bytes */
+ uLong compression_method; /* compression method 2 bytes */
+ uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
+ uLong crc; /* crc-32 4 bytes */
+ ZPOS64_T compressed_size; /* compressed size 8 bytes */
+ ZPOS64_T uncompressed_size; /* uncompressed size 8 bytes */
+ uLong size_filename; /* filename length 2 bytes */
+ uLong size_file_extra; /* extra field length 2 bytes */
+ uLong size_file_comment; /* file comment length 2 bytes */
+
+ uLong disk_num_start; /* disk number start 2 bytes */
+ uLong internal_fa; /* internal file attributes 2 bytes */
+ uLong external_fa; /* external file attributes 4 bytes */
+
+ tm_unz tmu_date;
+} unz_file_info64;
+
+typedef struct unz_file_info_s
+{
+ uLong version; /* version made by 2 bytes */
+ uLong version_needed; /* version needed to extract 2 bytes */
+ uLong flag; /* general purpose bit flag 2 bytes */
+ uLong compression_method; /* compression method 2 bytes */
+ uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
+ uLong crc; /* crc-32 4 bytes */
+ uLong compressed_size; /* compressed size 4 bytes */
+ uLong uncompressed_size; /* uncompressed size 4 bytes */
+ uLong size_filename; /* filename length 2 bytes */
+ uLong size_file_extra; /* extra field length 2 bytes */
+ uLong size_file_comment; /* file comment length 2 bytes */
+
+ uLong disk_num_start; /* disk number start 2 bytes */
+ uLong internal_fa; /* internal file attributes 2 bytes */
+ uLong external_fa; /* external file attributes 4 bytes */
+
+ tm_unz tmu_date;
+} unz_file_info;
+
+extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1,
+ const char* fileName2,
+ int iCaseSensitivity));
+/*
+ Compare two filename (fileName1,fileName2).
+ If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
+ If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
+ or strcasecmp)
+ If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
+ (like 1 on Unix, 2 on Windows)
+*/
+
+
+extern unzFile ZEXPORT unzOpen OF((const char *path));
+extern unzFile ZEXPORT unzOpen64 OF((const void *path));
+/*
+ Open a Zip file. path contain the full pathname (by example,
+ on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer
+ "zlib/zlib113.zip".
+ If the zipfile cannot be opened (file don't exist or in not valid), the
+ return value is NULL.
+ Else, the return value is a unzFile Handle, usable with other function
+ of this unzip package.
+ the "64" function take a const void* pointer, because the path is just the
+ value passed to the open64_file_func callback.
+ Under Windows, if UNICODE is defined, using fill_fopen64_filefunc, the path
+ is a pointer to a wide unicode string (LPCTSTR is LPCWSTR), so const char*
+ does not describe the reality
+*/
+
+
+extern unzFile ZEXPORT unzOpen2 OF((const char *path,
+ zlib_filefunc_def* pzlib_filefunc_def));
+/*
+ Open a Zip file, like unzOpen, but provide a set of file low level API
+ for read/write the zip file (see ioapi.h)
+*/
+
+extern unzFile ZEXPORT unzOpen2_64 OF((const void *path,
+ zlib_filefunc64_def* pzlib_filefunc_def));
+/*
+ Open a Zip file, like unz64Open, but provide a set of file low level API
+ for read/write the zip file (see ioapi.h)
+*/
+
+extern int ZEXPORT unzClose OF((unzFile file));
+/*
+ Close a ZipFile opened with unzOpen.
+ If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
+ these files MUST be closed with unzCloseCurrentFile before call unzClose.
+ return UNZ_OK if there is no problem. */
+
+extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
+ unz_global_info *pglobal_info));
+
+extern int ZEXPORT unzGetGlobalInfo64 OF((unzFile file,
+ unz_global_info64 *pglobal_info));
+/*
+ Write info about the ZipFile in the *pglobal_info structure.
+ No preparation of the structure is needed
+ return UNZ_OK if there is no problem. */
+
+
+extern int ZEXPORT unzGetGlobalComment OF((unzFile file,
+ char *szComment,
+ uLong uSizeBuf));
+/*
+ Get the global comment string of the ZipFile, in the szComment buffer.
+ uSizeBuf is the size of the szComment buffer.
+ return the number of byte copied or an error code <0
+*/
+
+
+/***************************************************************************/
+/* Unzip package allow you browse the directory of the zipfile */
+
+extern int ZEXPORT unzGoToFirstFile OF((unzFile file));
+/*
+ Set the current file of the zipfile to the first file.
+ return UNZ_OK if there is no problem
+*/
+
+extern int ZEXPORT unzGoToNextFile OF((unzFile file));
+/*
+ Set the current file of the zipfile to the next file.
+ return UNZ_OK if there is no problem
+ return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
+*/
+
+extern int ZEXPORT unzLocateFile OF((unzFile file,
+ const char *szFileName,
+ int iCaseSensitivity));
+/*
+ Try locate the file szFileName in the zipfile.
+ For the iCaseSensitivity signification, see unzStringFileNameCompare
+
+ return value :
+ UNZ_OK if the file is found. It becomes the current file.
+ UNZ_END_OF_LIST_OF_FILE if the file is not found
+*/
+
+
+/* ****************************************** */
+/* Ryan supplied functions */
+/* unz_file_info contain information about a file in the zipfile */
+typedef struct unz_file_pos_s
+{
+ uLong pos_in_zip_directory; /* offset in zip file directory */
+ uLong num_of_file; /* # of file */
+} unz_file_pos;
+
+extern int ZEXPORT unzGetFilePos(
+ unzFile file,
+ unz_file_pos* file_pos);
+
+extern int ZEXPORT unzGoToFilePos(
+ unzFile file,
+ unz_file_pos* file_pos);
+
+typedef struct unz64_file_pos_s
+{
+ ZPOS64_T pos_in_zip_directory; /* offset in zip file directory */
+ ZPOS64_T num_of_file; /* # of file */
+} unz64_file_pos;
+
+extern int ZEXPORT unzGetFilePos64(
+ unzFile file,
+ unz64_file_pos* file_pos);
+
+extern int ZEXPORT unzGoToFilePos64(
+ unzFile file,
+ const unz64_file_pos* file_pos);
+
+/* ****************************************** */
+
+extern int ZEXPORT unzGetCurrentFileInfo64 OF((unzFile file,
+ unz_file_info64 *pfile_info,
+ char *szFileName,
+ uLong fileNameBufferSize,
+ void *extraField,
+ uLong extraFieldBufferSize,
+ char *szComment,
+ uLong commentBufferSize));
+
+extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file,
+ unz_file_info *pfile_info,
+ char *szFileName,
+ uLong fileNameBufferSize,
+ void *extraField,
+ uLong extraFieldBufferSize,
+ char *szComment,
+ uLong commentBufferSize));
+/*
+ Get Info about the current file
+ if pfile_info!=NULL, the *pfile_info structure will contain somes info about
+ the current file
+ if szFileName!=NULL, the filemane string will be copied in szFileName
+ (fileNameBufferSize is the size of the buffer)
+ if extraField!=NULL, the extra field information will be copied in extraField
+ (extraFieldBufferSize is the size of the buffer).
+ This is the Central-header version of the extra field
+ if szComment!=NULL, the comment string of the file will be copied in szComment
+ (commentBufferSize is the size of the buffer)
+*/
+
+
+/** Addition for GDAL : START */
+
+extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((unzFile file));
+
+/** Addition for GDAL : END */
+
+
+/***************************************************************************/
+/* for reading the content of the current zipfile, you can open it, read data
+ from it, and close it (you can close it before reading all the file)
+ */
+
+extern int ZEXPORT unzOpenCurrentFile OF((unzFile file));
+/*
+ Open for reading data the current file in the zipfile.
+ If there is no error, the return value is UNZ_OK.
+*/
+
+extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file,
+ const char* password));
+/*
+ Open for reading data the current file in the zipfile.
+ password is a crypting password
+ If there is no error, the return value is UNZ_OK.
+*/
+
+extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file,
+ int* method,
+ int* level,
+ int raw));
+/*
+ Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
+ if raw==1
+ *method will receive method of compression, *level will receive level of
+ compression
+ note : you can set level parameter as NULL (if you did not want known level,
+ but you CANNOT set method parameter as NULL
+*/
+
+extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file,
+ int* method,
+ int* level,
+ int raw,
+ const char* password));
+/*
+ Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
+ if raw==1
+ *method will receive method of compression, *level will receive level of
+ compression
+ note : you can set level parameter as NULL (if you did not want known level,
+ but you CANNOT set method parameter as NULL
+*/
+
+
+extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));
+/*
+ Close the file in zip opened with unzOpenCurrentFile
+ Return UNZ_CRCERROR if all the file was read but the CRC is not good
+*/
+
+extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
+ voidp buf,
+ unsigned len));
+/*
+ Read bytes from the current file (opened by unzOpenCurrentFile)
+ buf contain buffer where data must be copied
+ len the size of buf.
+
+ return the number of byte copied if somes bytes are copied
+ return 0 if the end of file was reached
+ return <0 with error code if there is an error
+ (UNZ_ERRNO for IO error, or zLib error for uncompress error)
+*/
+
+extern z_off_t ZEXPORT unztell OF((unzFile file));
+
+extern ZPOS64_T ZEXPORT unztell64 OF((unzFile file));
+/*
+ Give the current position in uncompressed data
+*/
+
+extern int ZEXPORT unzeof OF((unzFile file));
+/*
+ return 1 if the end of file was reached, 0 elsewhere
+*/
+
+extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file,
+ voidp buf,
+ unsigned len));
+/*
+ Read extra field from the current file (opened by unzOpenCurrentFile)
+ This is the local-header version of the extra field (sometimes, there is
+ more info in the local-header version than in the central-header)
+
+ if buf==NULL, it return the size of the local extra field
+
+ if buf!=NULL, len is the size of the buffer, the extra header is copied in
+ buf.
+ the return value is the number of bytes copied in buf, or (if <0)
+ the error code
+*/
+
+/***************************************************************************/
+
+/* Get the current file offset */
+extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file);
+extern uLong ZEXPORT unzGetOffset (unzFile file);
+
+/* Set the current file offset */
+extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);
+extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _unz64_H */