#ifndef TI3_TAR_H
#define TI3_TAR_H

#include <tar.h>

/**
 * (Simplified) ustar-format archive header.
 *  - Strings are NUL-terminated only if possible or otherwise noted
 *  - Numbers are written in base 8 and are NUL-terminated
 *  - Only regular files, directories and symlinks can be archived
 *  - prefix is not used
 */
struct ustar_hdr {
	/* prefix/name = pathname, but we don't use the prefix */
	char name[100];
	/* struct stat.st_mode & 0x7777 to get file mode bits */
	char mode[8];
	char uid[8];
	char gid[8];
	char size[12];
	char mtime[12];
	/* initialised to spaces. Then add all bytes together to create chksum. */
	char chksum[8];
	/**
	 * We only support, REGTYPE, SYMTYPE and DIRTYPE
	 * FIFOs, Char- and Blockdevs should be rather easy to add, however
	 * hardlinks are non-trivial.
	 */
	char typeflag;
	char linkname[100];
	/* TMAGIC / "ustar"  */
	char magic[TMAGLEN];
	/* TVERSION / "00" -- *not* NUL-terminated */
	char version[TVERSLEN];
	char uname[32];
	char gname[32];
	/**
	 * Device version, only valid for Block or Character special files.
	 * We always store "0000000" (as does GNU/tar) for other files.
	 */
	char devmajor[8];
	char devminor[8];

	/* unused */
	char _prefix[155];

	/* to align with 512 bytes */
	char _padding[12];
};

#define F_EXTR (1 << 0)
#define F_CREA (1 << 1)
#define F_FILE (1 << 2)

#endif