greenplumn pgtar 代码
文件路径：/src/include/pgtar.h
/*-------------------------------------------------------------------------
*
* pgtar.h
* Functions for manipulating tarfile datastructures (src/port/tar.c)
*
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/pgtar.h
*
*-------------------------------------------------------------------------
*/
enum tarError
{
TAR_OK = 0,
TAR_NAME_TOO_LONG,
TAR_SYMLINK_TOO_LONG
};
extern enum tarError tarCreateHeader(char *h, const char *filename, const char *linktarget,
pgoff_t size, mode_t mode, uid_t uid, gid_t gid, time_t mtime);
extern uint64 read_tar_number(const char *s, int len);
extern void print_tar_number(char *s, int len, uint64 val);
extern int tarChecksum(char *header);
extern uint64 read_tar_number(const char *s, int len);