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some tweaks by cow to shrink a little
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@ -1,3 +1,4 @@
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/* vi: set sw=4 ts=4: */
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/*
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* sum -- checksum and count the blocks in a file
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* Like BSD sum or SysV sum -r, except like SysV sum if -s option is given.
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@ -9,20 +10,7 @@
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* Written by Kayvan Aghaiepour and David MacKenzie
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* Taken from coreutils and turned into a busybox applet by Mike Frysinger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Licensed under the GPL v2, see the file LICENSE in this tarball.
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*/
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#include <stdio.h>
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@ -32,7 +20,7 @@
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#include <unistd.h>
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#include <getopt.h>
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#include "libbb.h"
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#include "busybox.h"
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/* 1 if any of the files read were the standard input */
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static int have_read_stdin;
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@ -95,10 +83,10 @@ static int bsd_sum_file(const char *file, int print_name)
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Return 1 if successful. */
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static int sysv_sum_file(const char *file, int print_name)
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{
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#define MY_BUF_SIZE 8192
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int fd;
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unsigned char buf[8192];
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unsigned char buf[MY_BUF_SIZE];
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uintmax_t total_bytes = 0;
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int r;
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int checksum;
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/* The sum of all the input bytes, modulo (UINT_MAX + 1). */
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@ -117,7 +105,7 @@ static int sysv_sum_file(const char *file, int print_name)
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while (1) {
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size_t i;
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size_t bytes_read = safe_read(fd, buf, sizeof(buf));
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size_t bytes_read = safe_read(fd, buf, MY_BUF_SIZE);
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if (bytes_read == 0)
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break;
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@ -139,15 +127,14 @@ static int sysv_sum_file(const char *file, int print_name)
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return 0;
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}
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r = (s & 0xffff) + ((s & 0xffffffff) >> 16);
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checksum = (r & 0xffff) + (r >> 16);
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{
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int r = (s & 0xffff) + ((s & 0xffffffff) >> 16);
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checksum = (r & 0xffff) + (r >> 16);
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}
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printf("%d %s ", checksum,
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make_human_readable_str(total_bytes, 1, 512));
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if (print_name)
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puts(file);
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else
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printf("\n");
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puts(print_name ? file : "");
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return 1;
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}
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