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)

University of Illinois                              Jan 2001                                  tar_append_file(3)