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seek_by_jump.c 377 B

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  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. void FAST_FUNC seek_by_jump(int fd, off_t amount)
  8. {
  9. if (amount
  10. && lseek(fd, amount, SEEK_CUR) == (off_t) -1
  11. ) {
  12. if (errno == ESPIPE)
  13. seek_by_read(fd, amount);
  14. else
  15. bb_simple_perror_msg_and_die("seek failure");
  16. }
  17. }