NAME
tar_append_file, tar_append_eof, tar_append_regfile - append data to
tar archives
SYNOPSIS
#include <libtar.h>
int tar_append_file(TAR *t, char *realname, char *savename);
int tar_append_regfile(TAR *t, char *realname);
int tar_append_eof(TAR *t);
VERSION
This man page documents version 1.2 of libtar.
DESCRIPTION
The tar_append_file() function creates a tar file header block
describing the file named by the realname argument, but with the
encoded filename of savename. It then sets the current header
associated with the TAR handle t to the newly created header block, and
writes this block to the tar archive associated with t. If the file
named by realname is a regular file (and is not encoded as a hard
link), tar_append_file() will call tar_append_regfile() to append the
contents of the file.
The tar_append_regfile() function appends the contents of a regular
file to the tar archive associated with t. Since this function is
called by tar_append_file(), it should only be necessary for
applications that construct and write the tar file header on their own.
The tar_append_eof() function writes an EOF marker (two blocks of all
zeros) to the tar file associated with t.
RETURN VALUES
On successful completion, these functions will return 0. On failure,
they will return -1 and set errno to an appropriate value.
ERRORS
The tar_append_*() functions will fail if:
EINVAL Less than T_BLOCKSIZE bytes were written to the tar archive.
EINVAL Less than T_BLOCKSIZE bytes were read from the realname file.
They may also fail if any of the following functions fail: lstat(),
malloc(), open(), read(), th_write(), or the write function for the
file type associated with the TAR handle t.
SEE ALSO
read(2), open(2), lstat(2), th_write(3)