From 2306175432ef98ef94979a50e3f50e4fcf27e07f Mon Sep 17 00:00:00 2001
From: Thomas Schmitt <scdbackup@gmx.net>
Date: Fri, 28 Jun 2024 15:56:45 +0200
Subject: [PATCH] New info return modes 3 "Creation Time" and 4 "Modification
 Time" with isoburn_read_iso_head() and isoburn_read_iso_head_v2()

---
 libisoburn/burn_wrap.c      | 10 +++++++++-
 libisoburn/libisoburn.h     | 11 +++++++++--
 xorriso/xorriso_timestamp.h |  2 +-
 3 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/libisoburn/burn_wrap.c b/libisoburn/burn_wrap.c
index a36ab1bd..c6f8d4e5 100644
--- a/libisoburn/burn_wrap.c
+++ b/libisoburn/burn_wrap.c
@@ -1295,6 +1295,8 @@ int isoburn_report_iso_error(int iso_error_code, char msg_text[], int os_errno,
                  0= do not return anything in info (do not even touch it)
                  1= copy volume id to info (info needs 33 bytes)
                  2= do not touch info (caller will copy 64 kB header to it)
+                 3= copy creation time to info (info needs 18 bytes)
+                 4= copy modification time to info (info needs 18 bytes)
                bit14= -reserved -
                bit15= -reserved-
    @return 1 seems to be a valid ISO image , 0 format not recognized, <0 error
@@ -1315,7 +1317,7 @@ int isoburn_read_iso_head_parse(unsigned char *data,
  info_mode= flag&255;
  if(info_mode==0) {
    ;
- } else if(info_mode==1) {
+ } else if(info_mode==1) { /* Volume Id */
    strncpy(info, (char *) (data+40), 32);
    info[32]= 0;
    for(i= strlen(info)-1; i>=0; i--)
@@ -1325,6 +1327,12 @@ int isoburn_read_iso_head_parse(unsigned char *data,
        info[i]= 0;
  } else if(info_mode==2) {
    ;
+ } else if(info_mode == 3) { /* Creation Time */
+   strncpy(info, (char *) (data + 813), 17);
+   info[17]= 0;
+ } else if(info_mode == 4) { /* Modification Time */
+   strncpy(info, (char *) (data + 830), 17);
+   info[17]= 0;
  } else {
    isoburn_msgs_submit(NULL, 0x00060000,
                "Program error: Unknown info mode with isoburn_read_iso_head()",
diff --git a/libisoburn/libisoburn.h b/libisoburn/libisoburn.h
index 1b5450bd..1b9e50ae 100644
--- a/libisoburn/libisoburn.h
+++ b/libisoburn/libisoburn.h
@@ -730,7 +730,7 @@ void isoburn_toc_disc_free(struct isoburn_toc_disc *disc);
 
 /** Try whether the data at the given address look like a ISO 9660
     image header and obtain its alleged size. Depending on the info mode
-    one other string of text information can be retrieved too.
+    one string of text information or data can be retrieved too.
     @since 0.1.6
     @param d     The drive with the medium to inspect
     @param lba   The block number from where to read
@@ -740,7 +740,14 @@ void isoburn_toc_disc_free(struct isoburn_toc_disc *disc);
                  0= do not return anything in info (do not even touch it)
                  1= copy volume id to info (info needs 33 bytes)
                  2= @since 0.2.2 :
-                    copy 64 kB header to info (needs 65536 bytes) 
+                    copy 64 kB header to info (needs 65536 bytes) .
+                    No trailing zero gets appended.
+                 3= @since 1.5.8 :
+                    copy creation time to info (info needs 18 bytes).
+                    info[16] is the binary timezone offset x 15 minutes east
+                 4= @since 1.5.8 :
+                    copy modification time to info (info needs 18 bytes).
+                    info[16] is the binary timezone offset x 15 minutes east
                 bit12= @since 1.5.6 :
                        Read even if the start of multi-session emulation 
                        yielded a read error
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 4a5d01b0..a4efc86f 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2024.06.28.065555"
+#define Xorriso_timestamP "2024.06.28.135605"