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/*****************************************************************************\
* $Id: getsize.c 76 2006-02-15 00:49:19Z garlick $
*****************************************************************************
* Copyright (C) 2005 The Regents of the University of California.
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
* Written by Jim Garlick <garlick@llnl.gov>.
* UCRL-CODE-2003-006.
*
* This file is part of Scrub, a program for erasing disks.
* For details, see <http://www.llnl.gov/linux/scrub/>.
*
* Scrub is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* Scrub is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along
* with Scrub; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
\*****************************************************************************/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <libgen.h>
#include "getsize.h"
char *prog;
int
main(int argc, char *argv[])
{
off_t sz;
struct stat sb;
char buf[80];
prog = basename(argv[0]);
if (argc != 2) {
fprintf(stderr, "Usage: %s [file|string]\n", prog);
exit(1);
}
if (stat(argv[1], &sb) < 0) {
if (*argv[1] == '/') {
fprintf(stderr, "%s: could not stat special file\n", prog);
exit(1);
}
sz = str2size(argv[1]);
if (sz == 0) {
fprintf(stderr, "%s: error parsing size string\n", prog);
exit(1);
}
} else {
if (S_ISCHR(sb.st_mode) || S_ISBLK(sb.st_mode)) {
sz = getsize(argv[1]);
if (sz == 0) {
fprintf(stderr, "%s: could not determine device size\n", prog);
exit(1);
}
} else {
sz = sb.st_size;
}
}
if (sz != 0) {
size2str(buf, sizeof(buf), sz);
printf("%s\n", buf);
}
exit(0);
}
/*
* vi:tabstop=4 shiftwidth=4 expandtab
*/
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