1 files changed, 15 insertions, 21 deletions

diff --git a/Utilities/cmlibarchive/libarchive/archive_read_support_filter_bzip2.c b/Utilities/cmlibarchive/libarchive/archive_read_support_filter_bzip2.c
index 5333d47000..a5243aff71 100644
--- a/Utilities/cmlibarchive/libarchive/archive_read_support_filter_bzip2.c
+++ b/Utilities/cmlibarchive/libarchive/archive_read_support_filter_bzip2.c
@@ -70,7 +70,6 @@ static int	bzip2_filter_close(struct archive_read_filter *);
  */
 static int	bzip2_reader_bid(struct archive_read_filter_bidder *, struct archive_read_filter *);
 static int	bzip2_reader_init(struct archive_read_filter *);
-static int	bzip2_reader_free(struct archive_read_filter_bidder *);
 
 #if ARCHIVE_VERSION_NUMBER < 4000000
 /* Deprecated; remove in libarchive 4.0 */
@@ -81,24 +80,21 @@ archive_read_support_compression_bzip2(struct archive *a)
 }
 #endif
 
+static const struct archive_read_filter_bidder_vtable
+bzip2_bidder_vtable = {
+	.bid = bzip2_reader_bid,
+	.init = bzip2_reader_init,
+};
+
 int
 archive_read_support_filter_bzip2(struct archive *_a)
 {
 	struct archive_read *a = (struct archive_read *)_a;
-	struct archive_read_filter_bidder *reader;
-
-	archive_check_magic(_a, ARCHIVE_READ_MAGIC,
-	    ARCHIVE_STATE_NEW, "archive_read_support_filter_bzip2");
 
-	if (__archive_read_get_bidder(a, &reader) != ARCHIVE_OK)
+	if (__archive_read_register_bidder(a, NULL, "bzip2",
+				&bzip2_bidder_vtable) != ARCHIVE_OK)
 		return (ARCHIVE_FATAL);
 
-	reader->data = NULL;
-	reader->name = "bzip2";
-	reader->bid = bzip2_reader_bid;
-	reader->init = bzip2_reader_init;
-	reader->options = NULL;
-	reader->free = bzip2_reader_free;
 #if defined(HAVE_BZLIB_H) && defined(BZ_CONFIG_ERROR)
 	return (ARCHIVE_OK);
 #else
@@ -108,12 +104,6 @@ archive_read_support_filter_bzip2(struct archive *_a)
 #endif
 }
 
-static int
-bzip2_reader_free(struct archive_read_filter_bidder *self){
-	(void)self; /* UNUSED */
-	return (ARCHIVE_OK);
-}
-
 /*
  * Test whether we can handle this data.
  *
@@ -183,6 +173,12 @@ bzip2_reader_init(struct archive_read_filter *self)
 
 #else
 
+static const struct archive_read_filter_vtable
+bzip2_reader_vtable = {
+	.read = bzip2_filter_read,
+	.close = bzip2_filter_close,
+};
+
 /*
  * Setup the callbacks.
  */
@@ -209,9 +205,7 @@ bzip2_reader_init(struct archive_read_filter *self)
 	self->data = state;
 	state->out_block_size = out_block_size;
 	state->out_block = out_block;
-	self->read = bzip2_filter_read;
-	self->skip = NULL; /* not supported */
-	self->close = bzip2_filter_close;
+	self->vtable = &bzip2_reader_vtable;
 
 	return (ARCHIVE_OK);
 }