601 static	int	nblock = NBLOCK;  variable
785 				nblock = 1;  in main()
879 			nblock = bcheck(*argv++);  in main()
965 	    calloc(sizeof (union hblock) * nblock, sizeof (char))) ==  in main()
1341 		if (nblock && (blocklim%nblock) != 0)  in dorep()
1348 			    K((blocklim - 1)), K(nblock));  in dorep()
2384 		    (nblock * TBLOCK));  in putfile()
4159 		nblock = SYS_BLOCK / TBLOCK;  in dotable()
4161 		nblock = 1;  in dotable()
5072 	if (recno + blocks <= nblock) {  in seekdisk()
5076 	if (recno > nblock)  in seekdisk()
5077 		recno = nblock;  in seekdisk()
5078 	seekval = (off_t)blocks - (nblock - recno);  in seekdisk()
5079 	recno = nblock;	/* so readtape() reads next time through */  in seekdisk()
5098 		if (read(mt, tbuf, TBLOCK*nblock) < 0) {  in seekdisk()
5114 	if (recno >= nblock || first) {  in readtape()
5122 				j = nblock;  in readtape()
5126 			j = nblock;  in readtape()
5178 			if (vflag && i != nblock && i != 1) {  in readtape()
5193 				nblock = i;  in readtape()
5214 	if (recno >= nblock) {  in writetbuf()
5215 		i = write(mt, (char *)tbuf, TBLOCK*nblock);  in writetbuf()
5216 		if (i != TBLOCK*nblock)  in writetbuf()
5227 	while (recno == 0 && n >= nblock) {  in writetbuf()
5228 		i = (int)write(mt, buffer, TBLOCK*nblock);  in writetbuf()
5229 		if (i != TBLOCK*nblock)  in writetbuf()
5231 		n -= nblock;  in writetbuf()
5232 		buffer += (nblock * TBLOCK);  in writetbuf()
5238 		if (recno >= nblock) {  in writetbuf()
5239 			i = (int)write(mt, (char *)tbuf, TBLOCK*nblock);  in writetbuf()
5240 			if (i != TBLOCK*nblock)  in writetbuf()
5247 	return (nblock - recno);  in writetbuf()
5270 	    nblock);  in backtape()
5345 			if (recno > nblock)  in flushtape()
5346 				recno = nblock;  in flushtape()
5349 		    " bytes\n", (blkcnt_t)(NotTape ? recno : nblock),  in flushtape()
5350 		    (blkcnt_t)(NotTape ? recno : nblock) * TBLOCK);  in flushtape()
5352 		    (size_t)(NotTape ? recno : nblock) * TBLOCK) < 0) {  in flushtape()
5467 	nblock = bcheck(bp);  in defset()
5482 	    nblock, blocklim);  in defset()
5805 			while ((sz = read(mt, tbuf, TBLOCK*nblock)) > 0) {  in wantit()