bin/pax/buf_subs.c

219 	off_t cnt;
248 	if ((cnt = (skcnt/blksz) * blksz) < skcnt)
249 		cnt += blksz;
250 	if (ar_rev((off_t)cnt) < 0)
258 	if ((cnt -= skcnt) > 0) {
274 		bufpt = buf + cnt;
385 pback(char *pt, int cnt)
387 	bufpt -= cnt;
388 	memcpy(bufpt, pt, cnt);
404 	off_t cnt;
427 	 * based on rdblksz. we skip over "cnt" complete records
430 	cnt = (skcnt/rdblksz) * rdblksz;
436 	if (ar_fow(cnt, &skipped) < 0)
438 	res += cnt - skipped;
446 		cnt = bufend - bufpt;
450 		if ((cnt <= 0) && ((cnt = buf_fill()) < 0))
452 		if (cnt == 0)
454 		cnt = MIN(cnt, res);
455 		bufpt += cnt;
456 		res -= cnt;
493 	int cnt;
500 		cnt = bufend - bufpt;
501 		if ((cnt <= 0) && ((cnt = buf_flush(blksz)) < 0))
506 		cnt = MIN(cnt, outcnt);
507 		memcpy(bufpt, out, cnt);
508 		bufpt += cnt;
509 		out += cnt;
510 		outcnt -= cnt;
530 	int cnt;
537 		cnt = bufend - bufpt;
538 		if ((cnt <= 0) && ((cnt = buf_fill()) <= 0)) {
547 			return cnt;
554 		cnt = MIN(cnt, incnt);
555 		memcpy(in, bufpt, cnt);
556 		bufpt += cnt;
557 		incnt -= cnt;
558 		in += cnt;
577 	int cnt;
583 		cnt = bufend - bufpt;
584 		if ((cnt <= 0) && ((cnt = buf_flush(blksz)) < 0))
586 		cnt = MIN(cnt, skcnt);
587 		memset(bufpt, 0, cnt);
588 		bufpt += cnt;
589 		skcnt -= cnt;
615 	int cnt;
633 		cnt = bufend - bufpt;
634 		if ((cnt <= 0) && ((cnt = buf_flush(blksz)) < 0)) {
638 		cnt = MIN(cnt, size);
639 		if ((res = read_with_restart(ifd, bufpt, cnt)) <= 0)
685 	int cnt = 0;
716 		cnt = bufend - bufpt;
722 		if ((cnt <= 0) && ((cnt = buf_fill()) <= 0))
724 		cnt = MIN(cnt, size);
725 		if ((res = file_write(ofd,bufpt,cnt,&rem,&isem,sz,fnm)) <= 0) {
734 			cnt = res;
735 			while (--cnt >= 0)
784 	int cnt;
829 		if ((cnt = read_with_restart(fd1, buf, blksz)) <= 0)
832 			res = xwrite(fd2, buf, cnt);
834 			res = file_write(fd2, buf, cnt, &rem, &isem, sz, fnm);
835 		if (res != cnt)
837 		cpcnt += cnt;
885 	int cnt;
896 		if ((cnt = ar_read(buf, blksz)) > 0) {
898 			bufend = buf + cnt;
899 			rdcnt += cnt;
900 			return cnt;
909 		if (cnt < 0)
933 	int cnt;
976 		cnt = ar_write(buf, blksz);
977 		if (cnt == blksz) {
981 			wrcnt += cnt;
982 			totcnt += cnt;
997 		} else if (cnt > 0) {
1004 			totcnt += cnt;
1005 			wrcnt += cnt;
1006 			bufpt = buf + cnt;
1007 			cnt = bufcnt - cnt;
1008 			memcpy(buf, bufpt, cnt);
1009 			bufpt = buf + cnt;
1010 			if (!frmt->blkalgn || ((cnt % frmt->blkalgn) == 0))