1 /* vi: set sw=4 ts=4: */
2 /*
3  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
4  */
5 #include "libbb.h"
6 #include "bb_archive.h"
7 
seek_by_jump(int fd,off_t amount)8 void FAST_FUNC seek_by_jump(int fd, off_t amount)
9 {
10 	if (amount
11 	 && lseek(fd, amount, SEEK_CUR) == (off_t) -1
12 	) {
13 		if (errno == ESPIPE)
14 			seek_by_read(fd, amount);
15 		else
16 			bb_simple_perror_msg_and_die("seek failure");
17 	}
18 }
19