From 8b5af86a6403ee5a775f237bfd241a9943463745 Mon Sep 17 00:00:00 2001
From: Thomas Schmitt <scdbackup@gmx.net>
Date: Mon, 14 Jul 2008 12:04:51 +0000
Subject: [PATCH] New flag options with isoburn_read_iso_head()

---
 libisoburn/burn_wrap.c      | 15 ++++++++++-----
 libisoburn/libisoburn.h     |  2 ++
 xorriso/xorriso_timestamp.h |  2 +-
 3 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/libisoburn/burn_wrap.c b/libisoburn/burn_wrap.c
index 6e9b4b72..63ac142d 100644
--- a/libisoburn/burn_wrap.c
+++ b/libisoburn/burn_wrap.c
@@ -989,6 +989,7 @@ int isoburn_read_iso_head_parse(struct burn_drive *d, unsigned char *data,
                  0= do not return anything in info (do not even touch it)
                  1= copy volume id to info (info needs 33 bytes)
                  2= copy 64 kB header to info (needs 65536 bytes)
+               bit13= do not read head from media but use first 64 kB from info
                bit14= check both half buffers (not only second)
                       return 2 if found in first block
                bit15= return-1 on read error
@@ -1004,13 +1005,17 @@ int isoburn_read_iso_head(struct burn_drive *d, int lba,
 
  info_mode= flag&255;
  *image_blocks= 0;
- ret = burn_read_data(d, ((off_t) lba) * (off_t) 2048, (char *) buffer,
+ if(flag&(1<<13)) {
+   memcpy(buffer, info, 64*1024);
+ } else {
+   ret = burn_read_data(d, ((off_t) lba) * (off_t) 2048, (char *) buffer,
                       (off_t) 64*1024, &data_count, 2); /* no error messages */
- if(ret<=0)
-   return(-1*!!(flag&(1<<15)));
+   if(ret<=0)
+     return(-1*!!(flag&(1<<15)));
+   if(info_mode==2)
+     memcpy(info, buffer, 64*1024);
+ }
 
- if(info_mode==2)
-   memcpy(info, buffer, 64*1024);
  if(flag&(1<<14)) {
    ret= isoburn_read_iso_head_parse(d, buffer, image_blocks, info, info_mode);
    if(ret<0)
diff --git a/libisoburn/libisoburn.h b/libisoburn/libisoburn.h
index 51bfc46e..4cbd244c 100644
--- a/libisoburn/libisoburn.h
+++ b/libisoburn/libisoburn.h
@@ -583,6 +583,8 @@ void isoburn_toc_disc_free(struct isoburn_toc_disc *disc);
                  1= copy volume id to info (info needs 33 bytes)
                  2= @since 0.2.2 :
                     copy 64 kB header to info (needs 65536 bytes) 
+                bit13= @since 0.2.2:
+                      do not read head from media but use first 64 kB from info
                 bit14= check both half buffers (not only second)
                        return 2 if found in first block
                 bit15= return-1 on read error
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 3a327176..3fce1f9e 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2008.07.14.114613"
+#define Xorriso_timestamP "2008.07.14.120527"