From 1a1fcf8362d0202766b1ee31a9ae35c3342b0967 Mon Sep 17 00:00:00 2001
From: Vreixo Formoso <metalpain2002@yahoo.es>
Date: Sat, 26 Jan 2008 13:15:15 +0100
Subject: [PATCH] Add version field to all structs that will remain public.

---
 demo/iso_grow.c   | 1 +
 src/data_source.c | 1 +
 src/fs_image.c    | 2 ++
 src/fs_local.c    | 2 ++
 src/libisofs.h    | 9 +++++++++
 5 files changed, 15 insertions(+)

diff --git a/demo/iso_grow.c b/demo/iso_grow.c
index 18c7b99..26b37a0 100644
--- a/demo/iso_grow.c
+++ b/demo/iso_grow.c
@@ -247,6 +247,7 @@ libburn_data_source_new(struct burn_drive *d)
     IsoDataSource *ret;
     
     ret = malloc(sizeof(IsoDataSource));
+    ret->version = 0;
     ret->refcount = 1;
     ret->read_block = libburn_ds_read_block;
     ret->open = libburn_ds_open;
diff --git a/src/data_source.c b/src/data_source.c
index 57fea33..7510a89 100644
--- a/src/data_source.c
+++ b/src/data_source.c
@@ -182,6 +182,7 @@ int iso_data_source_new_from_file(const char *path, IsoDataSource **src)
     }
 
     data->fd = -1;
+    ds->version = 0;
     ds->refcount = 1;
     ds->data = data;
 
diff --git a/src/fs_image.c b/src/fs_image.c
index 8e725c8..0315ee4 100644
--- a/src/fs_image.c
+++ b/src/fs_image.c
@@ -683,6 +683,7 @@ void ifs_free(IsoFileSource *src)
 }
 
 IsoFileSourceIface ifs_class = { 
+    0, /* version */
     ifs_get_path,
     ifs_get_name,
     ifs_lstat,
@@ -1685,6 +1686,7 @@ int iso_image_filesystem_new(IsoDataSource *src, struct iso_read_opts *opts,
     strncpy(ifs->type, "iso ", 4);
     ifs->data = data;
     ifs->refcount = 1;
+    ifs->version = 0;
     ifs->get_root = ifs_get_root;
     ifs->get_by_path = ifs_get_by_path;
     ifs->get_id = ifs_get_id;
diff --git a/src/fs_local.c b/src/fs_local.c
index e2e6aba..90f9c0d 100644
--- a/src/fs_local.c
+++ b/src/fs_local.c
@@ -422,6 +422,7 @@ void lfs_free(IsoFileSource *src)
 }
 
 IsoFileSourceIface lfs_class = { 
+    0, /* version */
     lfs_get_path,
     lfs_get_name,
     lfs_lstat,
@@ -631,6 +632,7 @@ int iso_local_filesystem_new(IsoFilesystem **fs)
         /* fill struct */
         strncpy(lfs->type, "file", 4);
         lfs->refcount = 1;
+        lfs->version = 0;
         lfs->data = NULL; /* we don't need private data */
         lfs->get_root = lfs_get_root;
         lfs->get_by_path = lfs_get_by_path;
diff --git a/src/libisofs.h b/src/libisofs.h
index c92e650..b48a06d 100644
--- a/src/libisofs.h
+++ b/src/libisofs.h
@@ -109,6 +109,9 @@ typedef struct iso_data_source IsoDataSource;
  * drive.
  */
 struct iso_data_source {
+
+    /* reserved for future usage, set to 0 */
+    int version;
     
     /** 
      * Reference count for the data source. Should be 1 when a new source
@@ -281,6 +284,9 @@ struct iso_filesystem
      */
     char type[4];
 
+    /* reserved for future usage, set to 0 */
+    int version;
+
     /**
      * Get the root of a filesystem.
      * 
@@ -358,6 +364,9 @@ struct iso_filesystem
  */
 struct IsoFileSource_Iface
 {
+    /* reserved for future usage, set to 0 */
+    int version;
+
     /**
      * Get the path, relative to the filesystem this file source belongs to.
      *