Cleanup: split libtar header, move to sub directory

Some of the on-disk format internals are moved to a separate header
and some of the stuff from internal.h is moved to that format header.
C++ guards are added in addtion.

Everything PAX related is moved to pax_header.c, some internal
functions are marked as static.

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 0 insertions, 153 deletions

diff --git a/include/tar.h b/include/tar.h
deleted file mode 100644
index dadc16e..0000000
--- a/include/tar.h
+++ /dev/null
@@ -1,153 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * tar.h
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#ifndef TAR_H
-#define TAR_H
-
-#include "config.h"
-#include "compat.h"
-#include "io/istream.h"
-#include "io/ostream.h"
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-
-typedef struct sparse_map_t {
-	struct sparse_map_t *next;
-	sqfs_u64 offset;
-	sqfs_u64 count;
-} sparse_map_t;
-
-typedef struct {
-	char name[100];
-	char mode[8];
-	char uid[8];
-	char gid[8];
-	char size[12];
-	char mtime[12];
-	char chksum[8];
-	char typeflag;
-	char linkname[100];
-	char magic[6];
-	char version[2];
-	char uname[32];
-	char gname[32];
-	char devmajor[8];
-	char devminor[8];
-	union {
-		struct {
-			char prefix[155];
-			char padding[12];
-		} posix;
-
-		struct {
-			char atime[12];
-			char ctime[12];
-			char offset[12];
-			char deprecated[4];
-			char unused;
-			struct {
-				char offset[12];
-				char numbytes[12];
-			} sparse[4];
-			char isextended;
-			char realsize[12];
-			char padding[17];
-		} gnu;
-	} tail;
-} tar_header_t;
-
-typedef struct {
-	struct {
-		char offset[12];
-		char numbytes[12];
-	} sparse[21];
-	char isextended;
-	char padding[7];
-} gnu_sparse_t;
-
-typedef struct tar_xattr_t {
-	struct tar_xattr_t *next;
-	char *key;
-	sqfs_u8 *value;
-	size_t value_len;
-	char data[];
-} tar_xattr_t;
-
-typedef struct {
-	char *name;
-	char *link_target;
-	sparse_map_t *sparse;
-	sqfs_u64 actual_size;
-	sqfs_u64 record_size;
-	bool unknown_record;
-	bool is_hard_link;
-	tar_xattr_t *xattr;
-
-	sqfs_u16 mode;
-	sqfs_u64 uid;
-	sqfs_u64 gid;
-	sqfs_u64 devno;
-	sqfs_s64 mtime;
-} tar_header_decoded_t;
-
-#define TAR_TYPE_FILE '0'
-#define TAR_TYPE_LINK '1'
-#define TAR_TYPE_SLINK '2'
-#define TAR_TYPE_CHARDEV '3'
-#define TAR_TYPE_BLOCKDEV '4'
-#define TAR_TYPE_DIR '5'
-#define TAR_TYPE_FIFO '6'
-
-#define TAR_TYPE_GNU_SLINK 'K'
-#define TAR_TYPE_GNU_PATH 'L'
-#define TAR_TYPE_GNU_SPARSE 'S'
-
-#define TAR_TYPE_PAX 'x'
-#define TAR_TYPE_PAX_GLOBAL 'g'
-
-#define TAR_MAGIC "ustar"
-#define TAR_VERSION "00"
-
-#define TAR_MAGIC_OLD "ustar "
-#define TAR_VERSION_OLD " "
-
-#define TAR_RECORD_SIZE (512)
-
-/*
-  Returns < 0 on failure, > 0 if cannot encode, 0 on success.
-  Prints error/warning messages to stderr.
-
-  The counter is an incremental record counter used if additional
-  headers need to be generated.
-*/
-int write_tar_header(ostream_t *fp, const struct stat *sb, const char *name,
-		     const char *slink_target, const tar_xattr_t *xattr,
-		     unsigned int counter);
-
-int write_hard_link(ostream_t *fp, const struct stat *sb, const char *name,
-		    const char *target, unsigned int counter);
-
-/* calcuate and skip the zero padding */
-int skip_padding(istream_t *fp, sqfs_u64 size);
-
-/* round up to block size and skip the entire entry */
-int skip_entry(istream_t *fp, sqfs_u64 size);
-
-int read_header(istream_t *fp, tar_header_decoded_t *out);
-
-void free_xattr_list(tar_xattr_t *list);
-
-void clear_header(tar_header_decoded_t *hdr);
-
-/*
-  Write zero bytes to an output file to padd it to the tar record size.
-  Returns 0 on success. On failure, prints error message to stderr.
-*/
-int padd_file(ostream_t *fp, sqfs_u64 size);
-
-#endif /* TAR_H */