busybox/archival/libunarchive/seek_by_char.c

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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdlib.h>
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#include "unarchive.h"
#include "busybox.h"
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/* If we are reading through a pipe(), or from stdin then we cant lseek,
* we must read and discard the data to skip over it.
*
* TODO: rename to seek_by_read
*/
void seek_by_char(const archive_handle_t *archive_handle, const unsigned int jump_size)
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{
if (jump_size) {
bb_copyfd_size(archive_handle->src_fd, -1, jump_size);
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}
}