extractor-gtk-cvslog Mailing List for Obscure-Extractor-GTK

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Revision: 124
          http://extractor-gtk.svn.sourceforge.net/extractor-gtk/?rev=124&view=rev
Author:   someone-guy
Date:     2012-08-19 20:35:51 +0000 (Sun, 19 Aug 2012)
Log Message:
-----------
Add support for "installkit" files.

They are used by installers created with InstallJammer.

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

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

Modified: trunk/extractor/Makefile
===================================================================

--- trunk/extractor/Makefile	2011-08-21 10:08:02 UTC (rev 123)
+++ trunk/extractor/Makefile	2012-08-19 20:35:51 UTC (rev 124)
@@ -18,6 +18,7 @@
     dsnpk.c \
     generic.c \
     homeworld2.c \
+    installkit.c \
     nwn.c \
     pak.c \
     solid.c \

Modified: trunk/extractor/extractor.c
===================================================================
--- trunk/extractor/extractor.c	2011-08-21 10:08:02 UTC (rev 123)
+++ trunk/extractor/extractor.c	2012-08-19 20:35:51 UTC (rev 124)
@@ -22,6 +22,7 @@
   &dsnpk_fmt,
   &generic_fmt,
   &homeworld2_fmt,
+  &installkit_fmt,
   &nwn_fmt,
   &pak_fmt,
   &solid_fmt,

Modified: trunk/extractor/formats.h
===================================================================
--- trunk/extractor/formats.h	2011-08-21 10:08:02 UTC (rev 123)
+++ trunk/extractor/formats.h	2012-08-19 20:35:51 UTC (rev 124)
@@ -30,6 +30,7 @@
 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 installkit_fmt;
 extern const fmt_desc_t nwn_fmt;
 extern const fmt_desc_t pak_fmt;
 extern const fmt_desc_t solid_fmt;

Added: trunk/extractor/installkit.c
===================================================================
--- trunk/extractor/installkit.c	                        (rev 0)
+++ trunk/extractor/installkit.c	2012-08-19 20:35:51 UTC (rev 124)
@@ -0,0 +1,113 @@
+/**
+ * \file installkit.c
+ * \brief routines for handling the installkit CRAP archive files
+ *
+ * Copyright (C) 2012 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 installkit archive file
+static int check_file(FILE *in) {
+  char sig[7] = {0};
+  fseek(in, -256, SEEK_END);
+  fread(sig, 6, 1, in);
+  return strcmp(sig, "CRAP02") == 0;
+}
+
+static file_t *get_list(FILE *in) {
+  char header[257] = {0};
+  char *end;
+  file_t *list = NULL;
+  uint32_t count = 0, tblpos;
+  fseek(in, -256, SEEK_END);
+  if (fread(header, 256, 1, in) != 1)
+    return NULL;
+  tblpos = strtoull(header + 6, &end, 0);
+  if (*end)
+    return NULL;
+
+  fseek(in, tblpos, SEEK_SET);
+  while (fread(header, 256, 1, in) == 1) {
+    char *pos = header;
+    if (count >= MAX_FILES) break;
+    if (memcmp(header, "FILE", 4)) break;
+    add_entry_empty(&list, count);
+    pos += 6;
+    list[count].name = calloc(strlen(pos) + 11, 1);
+    strcpy(list[count].name, pos);
+    pos += 128;
+    list[count].len = strtoull(pos, &end, 0);
+    if (*end) continue;
+    pos += 12;
+    list[count].clen = strtoull(pos, &end, 0);
+    if (*end) continue;
+    pos += 12 + 12 + 2; // mtime, corefile and encryption (RC4) marker
+    list[count].start = strtoull(pos, &end, 0);
+    if (*end) continue;
+    pos += 12;
+    list[count].compressed = 1;
+    switch (TAG(0, 0, header[4], header[5])) {
+      case TAG(0, 0, 'L', 'Z'):
+        strcat(list[count].name, ".lzma");
+        list[count].priv = (void *)(intptr_t)1;
+        break;
+      case TAG(0, 0, 'Z', 'L'):
+        strcat(list[count].name, ".gz");
+        list[count].priv = (void *)(intptr_t)2;
+        break;
+      case TAG(0, 0, '0', '0'):
+        list[count].compressed = 0;
+        break;
+      default:
+        // HACK: until we can actually decompress
+        list[count].len = list[count].clen;
+        strcat(list[count].name, ".compr");
+        break;
+    }
+    count++;
+  }
+  return list;
+}
+
+static int extract_file(FILE *in, const file_t *file, FILE *out) {
+  uint64_t l = file->len;
+  uint8_t sizeb[8] = {l, l >>8, l >> 16, l >> 24, l >> 32, l >> 40, l >> 48, l >> 56};
+  int len, len2;
+  if (!file->priv) return default_extract_file(in, file, out);
+  fseek(in, file->start, SEEK_SET);
+  if ((intptr_t)file->priv == 2) {
+    static const uint8_t gzhdr[] = {0x1f, 0x8b, 8, 0, 0, 0, 0, 0, 2, 0xff};
+    static const uint8_t dummy_crc[4];
+    if (fwrite(gzhdr, sizeof(gzhdr), 1, out) != 1) return -1;
+    len = fcopy(in, out, file->clen);
+    if (len <= 0) return len;
+    if (fwrite(dummy_crc, sizeof(dummy_crc), 1, out) != 1) return -1;
+    if (fwrite(sizeb, 4, 1, out) != 1) return -1;
+    return sizeof(gzhdr) + len + 8;
+  }
+  if (file->clen < 5) return -1;
+  len = fcopy(in, out, 5);
+  if (len <= 0) return len;
+  if (fwrite(sizeb, sizeof(sizeb), 1, out) != 1) return -1;
+  len2 = fcopy(in, out, file->clen - 5);
+  if (len2 <= 0) return len2;
+  return len + sizeof(sizeb) + len2;
+}
+
+const fmt_desc_t installkit_fmt = {
+  "installkit",
+  "installkit (CRAP)",
+  "installkit (*.crap;*.bin)",
+  "*.crap;*.bin",
+  check_file,
+  get_list,
+  default_free_list,
+  extract_file,
+  default_extract_mem,
+};

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