bin/pax/buf_subs.c

213 	off_t cnt;
242 	if ((cnt = (skcnt/blksz) * blksz) < skcnt)
243 		cnt += blksz;
244 	if (ar_rev((off_t)cnt) < 0)
252 	if ((cnt -= skcnt) > 0) {
268 		bufpt = buf + cnt;
377 pback(char *pt, int cnt)
379 	bufpt -= cnt;
380 	memcpy(bufpt, pt, cnt);
396 	off_t cnt;
419 	 * based on rdblksz. we skip over "cnt" complete records
422 	cnt = (skcnt/rdblksz) * rdblksz;
428 	if (ar_fow(cnt, &skipped) < 0)
430 	res += cnt - skipped;
438 		cnt = bufend - bufpt;
442 		if ((cnt <= 0) && ((cnt = buf_fill()) < 0))
444 		if (cnt == 0)
446 		cnt = MIN(cnt, res);
447 		bufpt += cnt;
448 		res -= cnt;
485 	int cnt;
492 		cnt = bufend - bufpt;
493 		if ((cnt <= 0) && ((cnt = buf_flush(blksz)) < 0))
498 		cnt = MIN(cnt, outcnt);
499 		memcpy(bufpt, out, cnt);
500 		bufpt += cnt;
501 		out += cnt;
502 		outcnt -= cnt;
522 	int cnt;
529 		cnt = bufend - bufpt;
530 		if ((cnt <= 0) && ((cnt = buf_fill()) <= 0)) {
539 			return(cnt);
546 		cnt = MIN(cnt, incnt);
547 		memcpy(in, bufpt, cnt);
548 		bufpt += cnt;
549 		incnt -= cnt;
550 		in += cnt;
569 	int cnt;
575 		cnt = bufend - bufpt;
576 		if ((cnt <= 0) && ((cnt = buf_flush(blksz)) < 0))
578 		cnt = MIN(cnt, skcnt);
579 		memset(bufpt, 0, cnt);
580 		bufpt += cnt;
581 		skcnt -= cnt;
607 	int cnt;
616 		cnt = bufend - bufpt;
617 		if ((cnt <= 0) && ((cnt = buf_flush(blksz)) < 0)) {
621 		cnt = MIN(cnt, size);
622 		if ((res = read(ifd, bufpt, cnt)) <= 0)
668 	int cnt = 0;
696 		cnt = bufend - bufpt;
702 		if ((cnt <= 0) && ((cnt = buf_fill()) <= 0))
704 		cnt = MIN(cnt, size);
705 		if ((res = file_write(ofd,bufpt,cnt,&rem,&isem,sz,fnm)) <= 0) {
714 			cnt = res;
715 			while (--cnt >= 0)
756 	int cnt;
788 		if ((cnt = read(fd1, buf, blksz)) <= 0)
791 			res = write(fd2, buf, cnt);
793 			res = file_write(fd2, buf, cnt, &rem, &isem, sz, fnm);
794 		if (res != cnt)
796 		cpcnt += cnt;
837 	int cnt;
848 		if ((cnt = ar_read(buf, blksz)) > 0) {
850 			bufend = buf + cnt;
851 			rdcnt += cnt;
852 			return(cnt);
861 		if (cnt < 0)
885 	int cnt;
927 		cnt = ar_write(buf, blksz);
928 		if (cnt == blksz) {
932 			wrcnt += cnt;
933 			totcnt += cnt;
948 		} else if (cnt > 0) {
955 			totcnt += cnt;
956 			wrcnt += cnt;
957 			bufpt = buf + cnt;
958 			cnt = bufcnt - cnt;
959 			memcpy(buf, bufpt, cnt);
960 			bufpt = buf + cnt;
961 			if (!frmt->blkalgn || ((cnt % frmt->blkalgn) == 0))