Remove some unused fields from the private archive_read structure

(left over from when the unified read/write structure was copied
to form separate read and write structures) and eliminate the
pointless initialization of a couple of the unused fields.

2 files changed, 0 insertions, 52 deletions

diff --git a/lib/libarchive/archive_read.c b/lib/libarchive/archive_read.c
index 1028c5d..259fd7c 100644
--- a/lib/libarchive/archive_read.c
+++ b/lib/libarchive/archive_read.c
@@ -64,25 +64,12 @@ struct archive *
 archive_read_new(void)
 {
 	struct archive_read *a;
-	unsigned char	*nulls;
 
 	a = (struct archive_read *)malloc(sizeof(*a));
 	if (a == NULL)
 		return (NULL);
 	memset(a, 0, sizeof(*a));
 	a->archive.magic = ARCHIVE_READ_MAGIC;
-	a->bytes_per_block = ARCHIVE_DEFAULT_BYTES_PER_BLOCK;
-
-	a->null_length = 1024;
-	nulls = (unsigned char *)malloc(a->null_length);
-	if (nulls == NULL) {
-		archive_set_error(&a->archive, ENOMEM,
-		    "Can't allocate archive object 'nulls' element");
-		free(a);
-		return (NULL);
-	}
-	memset(nulls, 0, a->null_length);
-	a->nulls = nulls;
 
 	a->archive.state = ARCHIVE_STATE_NEW;
 	a->entry = archive_entry_new();
@@ -660,8 +647,6 @@ archive_read_finish(struct archive *_a)
 			(a->formats[i].cleanup)(a);
 	}
 
-	/* Casting a pointer to int allows us to remove 'const.' */
-	free((void *)(uintptr_t)(const void *)a->nulls);
 	archive_string_free(&a->archive.error_string);
 	if (a->entry)
 		archive_entry_free(a->entry);
diff --git a/lib/libarchive/archive_read_private.h b/lib/libarchive/archive_read_private.h
index da9cfb5..41b62e1 100644
--- a/lib/libarchive/archive_read_private.h
+++ b/lib/libarchive/archive_read_private.h
@@ -41,10 +41,6 @@ struct archive_read {
 	dev_t		  skip_file_dev;
 	ino_t		  skip_file_ino;
 
-	/* Utility:  Pointer to a block of nulls. */
-	const unsigned char	*nulls;
-	size_t			 null_length;
-
 	/*
 	 * Used by archive_read_data() to track blocks and copy
 	 * data to client buffers, filling gaps with zero bytes.
@@ -58,30 +54,9 @@ struct archive_read {
 	archive_open_callback	*client_opener;
 	archive_read_callback	*client_reader;
 	archive_skip_callback	*client_skipper;
-	archive_write_callback	*client_writer;
 	archive_close_callback	*client_closer;
 	void			*client_data;
 
-	/*
-	 * Blocking information.  Note that bytes_in_last_block is
-	 * misleadingly named; I should find a better name.  These
-	 * control the final output from all compressors, including
-	 * compression_none.
-	 */
-	int		  bytes_per_block;
-	int		  bytes_in_last_block;
-
-	/*
-	 * These control whether data within a gzip/bzip2 compressed
-	 * stream gets padded or not.  If pad_uncompressed is set,
-	 * the data will be padded to a full block before being
-	 * compressed.  The pad_uncompressed_byte determines the value
-	 * that will be used for padding.  Note that these have no
-	 * effect on compression "none."
-	 */
-	int		  pad_uncompressed;
-	int		  pad_uncompressed_byte; /* TODO: Support this. */
-
 	/* File offset of beginning of most recently-read header. */
 	off_t		  header_position;
 
@@ -142,18 +117,6 @@ struct archive_read {
 	struct archive_format_descriptor	*format; /* Active format. */
 
 	/*
-	 * Pointers to format-specific functions for writing.  They're
-	 * initialized by archive_write_set_format_XXX() calls.
-	 */
-	int	(*format_init)(struct archive *); /* Only used on write. */
-	int	(*format_finish)(struct archive *);
-	int	(*format_finish_entry)(struct archive *);
-	int 	(*format_write_header)(struct archive *,
-		    struct archive_entry *);
-	ssize_t	(*format_write_data)(struct archive *,
-		    const void *buff, size_t);
-
-	/*
 	 * Various information needed by archive_extract.
 	 */
 	struct extract		 *extract;