* Copyright (c) 1991 The Regents of the University of California.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
static char sccsid
[] = "@(#)getbsize.c 5.3 (Berkeley) 3/9/92";
getbsize(prog
, headerlenp
, blocksizep
)
long n
, max
, mul
, blocksize
;
#define MB (1024L * 1024L)
#define GB (1024L * 1024L * 1024L)
#define MAXB GB /* No tera, peta, nor exa. */
/* POSIX requires the -k option to display in 1024-blocks */
else if ((p
= getenv("BLOCKSIZE")) != NULL
&& *p
!= '\0') {
if ((n
= strtol(p
, &ep
, 10)) < 0)
fmterr
: (void)fprintf(stderr
,
"%s: %s: unknown blocksize\n", prog
, p
);
"%s: maximum blocksize is %dG\n", prog
, MAXB
/ GB
);
if ((blocksize
= n
* mul
) < 512) {
underflow
: (void)fprintf(stderr
,
"%s: minimum blocksize is 512\n", prog
);
*headerlenp
= snprintf(header
, sizeof(header
), "%d%s-blocks", n
, form
);