tar_append_file(3) C Library Calls tar_append_file(3)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 describ‐
ing the file named by the realname argument, but with the encoded file‐
name 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 applica‐
tions 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 ALSOread(2), open(2), lstat(2), th_write(3)University of Illinois Jan 2001 tar_append_file(3)
