45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdlib.h>
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#include "unarchive.h"
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#include "busybox.h"
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/* If we are reading through a pipe(), or from stdin then we cant lseek,
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* we must read and discard the data to skip over it.
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*
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* TODO: rename to seek_by_read
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*/
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extern void seek_by_char(const archive_handle_t *archive_handle, const unsigned int jump_size)
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{
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unsigned int remaining = jump_size;
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unsigned int read_amount;
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RESERVE_CONFIG_BUFFER(buf, BUFSIZ);
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while (remaining > 0) {
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if (remaining > BUFSIZ) {
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read_amount = BUFSIZ;
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} else {
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read_amount = remaining;
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}
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read_amount = archive_xread(archive_handle, buf, read_amount);
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remaining -= read_amount;
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}
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RELEASE_CONFIG_BUFFER(buf);
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}
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