th_read

Section: C Library Calls (3)
Updated: Jan 2001
Page Index

NAME

th_read, th_write - read and write a file header block from a tar archive

SYNOPSIS

#include <libtar.h>

int th_read(TAR *t);

int th_write(TAR *t);

VERSION

This man page documents version 1.2 of libtar.

DESCRIPTION

The th_read() function reads the next block from the tar archive associated with the TAR handle t. It then sets the current tar header associated with t to the contents of the block read.

The th_write() function writes the contents of the current tar header associated with t to the tar archive associated with t.

RETURN VALUE

On successful completion, th_read() and th_write() will return 0. On failure, they will return -1 and set errno to an appropriate value.

On EOF, th_read() will return 1.

ERRORS

th_read() and th_write() will fail if:

EINVAL: Less than T_BLOCKSIZE blocks were read or written.