From 50dde204ca4ff26bb8fc6617eefd91e88c4faf04 Mon Sep 17 00:00:00 2001
From: Vreixo Formoso Lopes <metalpain2002@yahoo.es>
Date: Wed, 12 Sep 2007 15:13:51 +0000
Subject: [PATCH] Remove private header import and copy needed functions.

---
 libisoburn/isofs_wrap.c | 65 ++++++++++++++++++++++++++++++++++-------
 libisoburn/libisoburn.h |  2 +-
 2 files changed, 55 insertions(+), 12 deletions(-)

diff --git a/libisoburn/isofs_wrap.c b/libisoburn/isofs_wrap.c
index 2b36c088..2e98fc61 100644
--- a/libisoburn/isofs_wrap.c
+++ b/libisoburn/isofs_wrap.c
@@ -16,10 +16,6 @@
 #include "../libburn/libburn.h"
 #include "isoburn.h"
 
-// TODO this are libisofs internals, should then be imported here?
-#include "../libisofs/util.h"
-#include "../libisofs/ecma119.h"
-
 /* Vreixo:
 
    This is now all yours. My text here is only a snapshot
@@ -32,6 +28,57 @@
 
 */
 
+#define BP(a,b) [(b) - (a) + 1]
+
+struct ecma119_pri_vol_desc
+{
+	uint8_t vol_desc_type		BP(1, 1);
+	uint8_t std_identifier		BP(2, 6);
+	uint8_t vol_desc_version	BP(7, 7);
+	uint8_t unused1			BP(8, 8);
+	uint8_t system_id		BP(9, 40);
+	uint8_t volume_id		BP(41, 72);
+	uint8_t unused2			BP(73, 80);
+	uint8_t vol_space_size		BP(81, 88);
+	uint8_t unused3			BP(89, 120);
+	uint8_t vol_set_size		BP(121, 124);
+	uint8_t vol_seq_number		BP(125, 128);
+	uint8_t block_size		BP(129, 132);
+	uint8_t path_table_size		BP(133, 140);
+	uint8_t l_path_table_pos	BP(141, 144);
+	uint8_t opt_l_path_table_pos	BP(145, 148);
+	uint8_t m_path_table_pos	BP(149, 152);
+	uint8_t opt_m_path_table_pos	BP(153, 156);
+	uint8_t root_dir_record		BP(157, 190);
+	uint8_t	vol_set_id		BP(191, 318);
+	uint8_t publisher_id		BP(319, 446);
+	uint8_t data_prep_id		BP(447, 574);
+	uint8_t application_id		BP(575, 702);
+	uint8_t copyright_file_id	BP(703, 739);
+	uint8_t abstract_file_id	BP(740, 776);
+	uint8_t bibliographic_file_id	BP(777, 813);
+	uint8_t vol_creation_time	BP(814, 830);
+	uint8_t vol_modification_time	BP(831, 847);
+	uint8_t vol_expiration_time	BP(848, 864);
+	uint8_t vol_effective_time	BP(865, 881);
+	uint8_t file_structure_version	BP(882, 882);
+	uint8_t reserved1		BP(883, 883);
+	uint8_t app_use			BP(884, 1395);
+	uint8_t reserved2		BP(1396, 2048);
+};
+
+static
+uint32_t iso_read_lsb(const uint8_t *buf, int bytes)
+{
+	int i;
+	uint32_t ret = 0;
+
+	for (i=0; i<bytes; i++) {
+		ret += ((uint32_t) buf[i]) << (i*8);
+	}
+	return ret;
+}
+
 
 /* API function. See libisoburn.h
 */
@@ -148,14 +195,10 @@ int isoburn_start_emulation(struct isoburn *o, int flag)
  return 1;
 }
 
-// TODO why read is needed? can't I assume 64k are already cached?
-// TODO can I assume isoburn_start_emulation was already called and
-// disc contains a valid image?
-// TODO why "The result shall especially keep libisofs from accepting the 
-//           media image as ISO filesystem"?
-/** Reads, alters and writes the first 64 kB of a "media" to invalidate
+
+/** Alters and writes the first 64 kB of a "media" to invalidate
     an ISO image. (It shall stay restorable by skilled humans, though).
-    The result shall especially keep libisofs from accepting the media
+    The result shall especially keep libisoburn from accepting the media
     image as ISO filesystem.
     @param o A fully activated isoburn object. isoburn_start_emulation()
              was already called.
diff --git a/libisoburn/libisoburn.h b/libisoburn/libisoburn.h
index 1b6bdb1a..0dc848ae 100644
--- a/libisoburn/libisoburn.h
+++ b/libisoburn/libisoburn.h
@@ -112,7 +112,7 @@ struct isoburn_read_opts {
     image growing or image modification. The loaded volset gets attached
     to the drive object and is not publicly available.
     Not a wrapper, but peculiar to libisoburn.
-    @param d The drive which holds an existing IOS filesystem
+    @param d The drive which holds an existing ISO filesystem
     @param read_opts The read options which can be chosen by the application
     @param volset the volset that represents the image, or NULL if the image is 
                   empty.