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This is my preliminary

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du implementation.  It
    was written from scratch
    (doesn't use recursiveAction).
    I still need to flesh out
    du_main().
This commit is contained in:
John Beppu 1999-12-09 18:23:54 +00:00
parent f0758dd6ba
commit 0f5e1ab949
2 changed files with 166 additions and 0 deletions
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83
coreutils/du.c Normal file
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/*
* Mini du implementation for busybox
*
*
* Copyright (C) 1999 by Lineo, inc.
* Written by John Beppu <beppu@line.com>
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "internal.h"
#include <sys/types.h>
#include <fcntl.h>
#include <dirent.h>
#include <stdio.h>
/*
#include <unistd.h>
#include <sys/stat.h>
*/
typedef void (Display)(size_t, char *);
static void
print(size_t size, char *filename)
{
fprintf(stdout, "%-7d %s\n", (size >> 1), filename);
}
/* tiny recursive du */
static size_t
size(char *filename)
{
struct stat statbuf;
size_t sum;
if ((lstat(filename, &statbuf)) != 0) { return 0; }
sum = statbuf.st_blocks;
if (S_ISDIR(statbuf.st_mode)) {
DIR *dir;
struct dirent *entry;
dir = opendir(filename);
if (!dir) { return 0; }
while ((entry = readdir(dir))) {
char newfile[512];
char *name = entry->d_name;
if ( (strcmp(name, "..") == 0)
|| (strcmp(name, ".") == 0))
{ continue; }
sprintf(newfile, "%s/%s", filename, name);
sum += size(newfile);
}
closedir(dir);
print(sum, filename);
}
return sum;
}
int
du_main(int argc, char **argv)
{
/* I'll fill main() in shortly */
size(".");
exit(0);
}

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du.c Normal file
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/*
* Mini du implementation for busybox
*
*
* Copyright (C) 1999 by Lineo, inc.
* Written by John Beppu <beppu@line.com>
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "internal.h"
#include <sys/types.h>
#include <fcntl.h>
#include <dirent.h>
#include <stdio.h>
/*
#include <unistd.h>
#include <sys/stat.h>
*/
typedef void (Display)(size_t, char *);
static void
print(size_t size, char *filename)
{
fprintf(stdout, "%-7d %s\n", (size >> 1), filename);
}
/* tiny recursive du */
static size_t
size(char *filename)
{
struct stat statbuf;
size_t sum;
if ((lstat(filename, &statbuf)) != 0) { return 0; }
sum = statbuf.st_blocks;
if (S_ISDIR(statbuf.st_mode)) {
DIR *dir;
struct dirent *entry;
dir = opendir(filename);
if (!dir) { return 0; }
while ((entry = readdir(dir))) {
char newfile[512];
char *name = entry->d_name;
if ( (strcmp(name, "..") == 0)
|| (strcmp(name, ".") == 0))
{ continue; }
sprintf(newfile, "%s/%s", filename, name);
sum += size(newfile);
}
closedir(dir);
print(sum, filename);
}
return sum;
}
int
du_main(int argc, char **argv)
{
/* I'll fill main() in shortly */
size(".");
exit(0);
}