busybox/archival/libunarchive/seek_by_read.c

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/* vi: set sw=4 ts=4: */
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/*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
#include <stdlib.h>
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#include "unarchive.h"
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#include "libbb.h"
/* If we are reading through a pipe(), or from stdin then we can't lseek,
* we must read and discard the data to skip over it.
*/
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void seek_by_read(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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}
}