From 0f5e1ab949193ee7b6228bc66730da9d573464eb Mon Sep 17 00:00:00 2001
From: John Beppu <beppu@lbox.org>
Date: Thu, 9 Dec 1999 18:23:54 +0000
Subject:     This is my preliminary     du implementation.  It     was written
 from scratch     (doesn't use recursiveAction).     I still need to flesh out
     du_main().

---
 du.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 du.c

(limited to 'du.c')

diff --git a/du.c b/du.c
new file mode 100644
index 000000000..9e4e11473
--- /dev/null
+++ b/du.c
@@ -0,0 +1,83 @@
+/*
+ * 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);
+}
+
-- 
cgit v1.2.3