602 static	blkcnt_t	recno;  variable
5019 	if (recno + blocks <= nblock) {  in seekdisk()
5020 		recno += blocks;  in seekdisk()
5023 	if (recno > nblock)  in seekdisk()
5024 		recno = nblock;  in seekdisk()
5025 	seekval = (off_t)blocks - (nblock - recno);  in seekdisk()
5026 	recno = nblock;	/* so readtape() reads next time through */  in seekdisk()
5054 		recno = nxb;	/* so we don't read in next readtape() */  in seekdisk()
5065 	if (recno >= nblock || first) {  in readtape()
5146 		recno = 0;  in readtape()
5150 	copy(buffer, &tbuf[recno++]);  in readtape()
5165 	if (recno >= nblock) {  in writetbuf()
5169 		recno = 0;  in writetbuf()
5178 	while (recno == 0 && n >= nblock) {  in writetbuf()
5187 		(void) memcpy((char *)&tbuf[recno++], buffer, TBLOCK);  in writetbuf()
5189 		if (recno >= nblock) {  in writetbuf()
5193 			recno = 0;  in writetbuf()
5198 	return (nblock - recno);  in writetbuf()
5221 	DEBUG("backtape() called, recno=%" FMT_blkcnt_t " nblock=%d\n", recno,  in backtape()
5236 		if (lseek(mt, (off_t)(TBLOCK*(tapepos-recno)), SEEK_SET) ==  in backtape()
5263 	recno--;  in backtape()
5282 	DEBUG("flushtape() called, recno=%" FMT_blkcnt_t "\n", recno, 0);  in flushtape()
5284 	if (recno > 0) {	/* anything buffered? */  in flushtape()
5295 			if ((i = recno % (SYS_BLOCK / TBLOCK)) != 0) {  in flushtape()
5299 				recno += i;	/* round up to even SYS_BLOCK */  in flushtape()
5302 			if (recno > nblock)  in flushtape()
5303 				recno = nblock;  in flushtape()
5307 		    " bytes\n", (blkcnt_t)(NotTape ? recno : nblock),  in flushtape()
5308 		    (blkcnt_t)(NotTape ? recno : nblock) * TBLOCK);  in flushtape()
5311 		    (size_t)(NotTape ? recno : nblock) * TBLOCK) < 0) {  in flushtape()
5316 		recno = 0;  in flushtape()