[Extractor-gtk-cvslog] SF.net SVN: extractor-gtk:[109] trunk/extractor

[<som...@us...>]

Revision: 109
          http://extractor-gtk.svn.sourceforge.net/extractor-gtk/?rev=109&view=rev
Author:   someone-guy
Date:     2008-08-23 11:21:39 +0000 (Sat, 23 Aug 2008)

Log Message:
-----------
Incomplete support for Drakensang export.npg file

Modified Paths:
--------------
    trunk/extractor/Makefile
    trunk/extractor/extractor.c
    trunk/extractor/formats.h

Added Paths:
-----------
    trunk/extractor/dsnpk.c

Modified: trunk/extractor/Makefile
===================================================================
--- trunk/extractor/Makefile	2008-08-23 11:21:10 UTC (rev 108)
+++ trunk/extractor/Makefile	2008-08-23 11:21:39 UTC (rev 109)
@@ -3,6 +3,7 @@
 CFLAGS+=-std=c99 -D_XOPEN_SOURCE=500
 MODULES= \
     bloodrayne.c \
+    dsnpk.c \
     generic.c \
     homeworld2.c \
     nwn.c \

Added: trunk/extractor/dsnpk.c
===================================================================
--- trunk/extractor/dsnpk.c	                        (rev 0)
+++ trunk/extractor/dsnpk.c	2008-08-23 11:21:39 UTC (rev 109)
@@ -0,0 +1,73 @@
+/**
+ * \file dsnpk.c
+ * \brief routines for handling the Drakensang npk archive file
+ *
+ * Copyright (C) 2008 Reimar Döffinger
+ * License: GPL v2 (see LICENSE file)
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include "formats.h"
+#include "helpers.h"
+
+//! check if this is a npk archive file (starts with 0KPN)
+static int check_file(FILE *in) {
+  rewind(in);
+  return read_le32(in) == TAG('N', 'P', 'K', '0');
+}
+
+static inline void get_tag(FILE *in, uint32_t *tag, uint64_t *end) {
+  *tag = read_le32(in);
+  *end = read_le32(in);
+  *end += ftell(in);
+}
+
+static file_t *get_list(FILE *in) {
+  file_t *list = calloc(1, sizeof(file_t));
+  int cnt = 0;
+  uint64_t next_pos = 0;
+  uint64_t data_offset = 0;
+  do {
+    uint32_t tag;
+    uint16_t nlen;
+    fseek(in, next_pos, SEEK_SET);
+    get_tag(in, &tag, &next_pos);
+    switch (tag) {
+      case TAG('N', 'P', 'K', '0'):
+        data_offset = read_le32(in); // offset of data tag
+        data_offset += 8; // data starts after tag header
+        break;
+      case TAG('F', 'I', 'L', 'E'):
+        add_entry_empty(&list, cnt);
+        list[cnt].start = data_offset + read_le32(in);
+        list[cnt].len = read_le32(in);
+        nlen = read_le16(in);
+        list[cnt].name = calloc(1, nlen + 1);
+        fread(list[cnt].name, 1, nlen, in);
+        cnt++;
+        break;
+      case TAG('D', 'I', 'R', '_'): // TODO: descend given directory
+        break;
+      case TAG('D', 'E', 'N', 'D'): // TODO: ascend path
+        break;
+      default:
+        // unknown tag
+        break;
+    }
+  } while(!feof(in));
+  return list;
+}
+
+const fmt_desc_t dsnpk_fmt = {
+  "dsnpk",
+  "NPK (Drakensang)",
+  "NPK (*.npk)",
+  "*.npk",
+  check_file,
+  get_list,
+  default_free_list,
+  default_extract_file,
+  default_extract_mem,
+};

Modified: trunk/extractor/extractor.c
===================================================================
--- trunk/extractor/extractor.c	2008-08-23 11:21:10 UTC (rev 108)
+++ trunk/extractor/extractor.c	2008-08-23 11:21:39 UTC (rev 109)
@@ -19,6 +19,7 @@
 //! brief NULL-terminated array of supported formats
 const fmt_desc_t * const fmts[] = {
   &bloodrayne_fmt,
+  &dsnpk_fmt,
   &generic_fmt,
   &homeworld2_fmt,
   &nwn_fmt,

Modified: trunk/extractor/formats.h
===================================================================
--- trunk/extractor/formats.h	2008-08-23 11:21:10 UTC (rev 108)
+++ trunk/extractor/formats.h	2008-08-23 11:21:39 UTC (rev 109)
@@ -27,6 +27,7 @@
 } fmt_desc_t;
 
 extern const fmt_desc_t bloodrayne_fmt;
+extern const fmt_desc_t dsnpk_fmt;
 extern const fmt_desc_t generic_fmt;
 extern const fmt_desc_t homeworld2_fmt;
 extern const fmt_desc_t nwn_fmt;


This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.