*
*
* Copyright (C) 1999 by Lineo, inc.
- * Written by John Beppu <beppu@line.com>
+ * Written by John Beppu <beppu@lineo.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
#include <fcntl.h>
#include <dirent.h>
#include <stdio.h>
+#include <errno.h>
#if 0
#include <unistd.h>
#include <sys/stat.h>
#endif
+typedef void (Display)(size_t, char *);
+
static const char du_usage[] =
-"Usage: du [OPTION]... [FILE]...\n";
+"Usage: du [OPTION]... [FILE]...\n\n"
+"\t-s\tdisplay only a total for each argument\n"
+;
-typedef void (Display)(size_t, char *);
+static int du_depth = 0;
+
+static Display *print;
static void
-print(size_t size, char *filename)
+print_normal(size_t size, char *filename)
{
fprintf(stdout, "%-7d %s\n", (size >> 1), filename);
}
+static void
+print_summary(size_t size, char *filename)
+{
+ if (du_depth == 1) {
+ print_normal(size, filename);
+ }
+}
+
+
/* tiny recursive du */
static size_t
du(char *filename)
struct stat statbuf;
size_t sum;
- if ((lstat(filename, &statbuf)) != 0) { return 0; }
+ if ((lstat(filename, &statbuf)) != 0) {
+ fprintf(stdout, "du: %s: %s\n", filename, strerror(errno));
+ return 0;
+ }
+
+ du_depth++;
sum = statbuf.st_blocks;
if (S_ISDIR(statbuf.st_mode)) {
closedir(dir);
print(sum, filename);
}
+ du_depth--;
return sum;
}
int i;
char opt;
+ /* default behaviour */
+ print = print_normal;
+
/* parse argv[] */
for (i = 1; i < argc; i++) {
if (argv[i][0] == '-') {
opt = argv[i][1];
switch (opt) {
case 's':
+ print = print_summary;
break;
case 'h':
usage(du_usage);
if (i >= argc) {
du(".");
} else {
+ int sum;
for ( ; i < argc; i++) {
- printf("%-7d %s\n", du(argv[i]) >> 1, argv[i]);
+ sum = du(argv[i]);
+ if ((sum) && (isDirectory(argv[i]))) { print_normal(sum, argv[i]); }
}
}
exit(0);
}
-/* $Id: du.c,v 1.2 1999/12/10 06:15:27 beppu Exp $ */
+/* $Id: du.c,v 1.8 1999/12/17 18:44:15 erik Exp $ */