Age         Owner                  TLA  Line data    Source code

                                  1                 : /*-------------------------------------------------------------------------
                                  2                 :  *
                                  3                 :  * pgtar.h
                                  4                 :  *    Functions for manipulating tarfile datastructures (src/port/tar.c)
                                  5                 :  *
                                  6                 :  *
                                  7                 :  * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
                                  8                 :  * Portions Copyright (c) 1994, Regents of the University of California
                                  9                 :  *
                                 10                 :  * src/include/pgtar.h
                                 11                 :  *
                                 12                 :  *-------------------------------------------------------------------------
                                 13                 :  */
                                 14                 : #ifndef PG_TAR_H
                                 15                 : #define PG_TAR_H
                                 16                 : 
                                 17                 : #define     TAR_BLOCK_SIZE  512
                                 18                 : 
                                 19                 : enum tarError
                                 20                 : {
                                 21                 :     TAR_OK = 0,
                                 22                 :     TAR_NAME_TOO_LONG,
                                 23                 :     TAR_SYMLINK_TOO_LONG
                                 24                 : };
                                 25                 : 
                                 26                 : extern enum tarError tarCreateHeader(char *h, const char *filename,
                                 27                 :                                      const char *linktarget, pgoff_t size,
                                 28                 :                                      mode_t mode, uid_t uid, gid_t gid,
                                 29                 :                                      time_t mtime);
                                 30                 : extern uint64 read_tar_number(const char *s, int len);
                                 31                 : extern void print_tar_number(char *s, int len, uint64 val);
                                 32                 : extern int  tarChecksum(char *header);
                                 33                 : 
                                 34                 : /*
                                 35                 :  * Compute the number of padding bytes required for an entry in a tar
                                 36                 :  * archive. We must pad out to a multiple of TAR_BLOCK_SIZE. Since that's
                                 37                 :  * a power of 2, we can use TYPEALIGN().
                                 38                 :  */
                                 39                 : static inline size_t
 1080 rhaas                      40 CBC      461376 : tarPaddingBytesRequired(size_t len)
                                 41                 : {
                                 42          461376 :     return TYPEALIGN(TAR_BLOCK_SIZE, len) - len;
                                 43                 : }
                                 44                 : 
                                 45                 : #endif