hush/archival/libunarchive/seek_by_jump.c

25 lines
570 B
C
Raw Normal View History

/* vi: set sw=4 ts=4: */
2001-10-25 14:18:08 +00:00
/*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
2001-10-25 14:18:08 +00:00
*/
2002-09-25 02:47:48 +00:00
#include <sys/types.h>
2001-10-25 14:18:08 +00:00
#include <errno.h>
#include <unistd.h>
2002-09-25 02:47:48 +00:00
#include <stdlib.h>
2002-09-25 02:47:48 +00:00
#include "libbb.h"
#include "unarchive.h"
2001-10-25 14:18:08 +00:00
void seek_by_jump(const archive_handle_t *archive_handle, const unsigned int amount)
2001-10-25 14:18:08 +00:00
{
if (lseek(archive_handle->src_fd, (off_t) amount, SEEK_CUR) == (off_t) -1) {
2002-11-08 08:07:38 +00:00
#ifdef CONFIG_FEATURE_UNARCHIVE_TAPE
if (errno == ESPIPE) {
2006-10-08 12:49:22 +00:00
seek_by_read(archive_handle, amount);
} else
#endif
bb_perror_msg_and_die("seek failure");
2001-10-25 14:18:08 +00:00
}
}