bin/pax/buf_subs.c

211 	off_t cnt;
240 	if ((cnt = (skcnt/blksz) * blksz) < skcnt)
241 		cnt += blksz;
242 	if (ar_rev((off_t)cnt) < 0)
250 	if ((cnt -= skcnt) > 0) {
266 		bufpt = buf + cnt;
375 pback(char *pt, int cnt)
377 	bufpt -= cnt;
378 	memcpy(bufpt, pt, cnt);
394 	off_t cnt;
417 	 * based on rdblksz. we skip over "cnt" complete records
420 	cnt = (skcnt/rdblksz) * rdblksz;
426 	if (ar_fow(cnt, &skipped) < 0)
428 	res += cnt - skipped;
436 		cnt = bufend - bufpt;
440 		if ((cnt <= 0) && ((cnt = buf_fill()) < 0))
442 		if (cnt == 0)
444 		cnt = MIN(cnt, res);
445 		bufpt += cnt;
446 		res -= cnt;
483 	int cnt;
490 		cnt = bufend - bufpt;
491 		if ((cnt <= 0) && ((cnt = buf_flush(blksz)) < 0))
496 		cnt = MIN(cnt, outcnt);
497 		memcpy(bufpt, out, cnt);
498 		bufpt += cnt;
499 		out += cnt;
500 		outcnt -= cnt;
520 	int cnt;
527 		cnt = bufend - bufpt;
528 		if ((cnt <= 0) && ((cnt = buf_fill()) <= 0)) {
537 			return(cnt);
544 		cnt = MIN(cnt, incnt);
545 		memcpy(in, bufpt, cnt);
546 		bufpt += cnt;
547 		incnt -= cnt;
548 		in += cnt;
567 	int cnt;
573 		cnt = bufend - bufpt;
574 		if ((cnt <= 0) && ((cnt = buf_flush(blksz)) < 0))
576 		cnt = MIN(cnt, skcnt);
577 		memset(bufpt, 0, cnt);
578 		bufpt += cnt;
579 		skcnt -= cnt;
605 	int cnt;
614 		cnt = bufend - bufpt;
615 		if ((cnt <= 0) && ((cnt = buf_flush(blksz)) < 0)) {
619 		cnt = MIN(cnt, size);
620 		if ((res = read(ifd, bufpt, cnt)) <= 0)
666 	int cnt = 0;
694 		cnt = bufend - bufpt;
700 		if ((cnt <= 0) && ((cnt = buf_fill()) <= 0))
702 		cnt = MIN(cnt, size);
703 		if ((res = file_write(ofd,bufpt,cnt,&rem,&isem,sz,fnm)) <= 0) {
712 			cnt = res;
713 			while (--cnt >= 0)
754 	int cnt;
786 		if ((cnt = read(fd1, buf, blksz)) <= 0)
789 			res = write(fd2, buf, cnt);
791 			res = file_write(fd2, buf, cnt, &rem, &isem, sz, fnm);
792 		if (res != cnt)
794 		cpcnt += cnt;
835 	int cnt;
846 		if ((cnt = ar_read(buf, blksz)) > 0) {
848 			bufend = buf + cnt;
849 			rdcnt += cnt;
850 			return(cnt);
859 		if (cnt < 0)
883 	int cnt;
925 		cnt = ar_write(buf, blksz);
926 		if (cnt == blksz) {
930 			wrcnt += cnt;
931 			totcnt += cnt;
946 		} else if (cnt > 0) {
953 			totcnt += cnt;
954 			wrcnt += cnt;
955 			bufpt = buf + cnt;
956 			cnt = bufcnt - cnt;
957 			memcpy(buf, bufpt, cnt);
958 			bufpt = buf + cnt;
959 			if (!frmt->blkalgn || ((cnt % frmt->blkalgn) == 0))