typedef void (Display) (long, char *);
static const char du_usage[] =
-
"du [OPTION]... [FILE]...\n\n"
+ "Summarize disk space used for each FILE and/or directory.\n"
+ "Disk space is printed in units of 1024 bytes.\n\n"
+ "Options:\n"
+ "\t-l\tcount sizes many times if hard linked\n"
"\t-s\tdisplay only a total for each argument\n";
static int du_depth = 0;
+static int count_hardlinks = 0;
static Display *print;
static void print_normal(long size, char *filename)
{
- fprintf(stdout, "%-7ld %s\n", size, filename);
+ fprintf(stdout, "%ld\t%s\n", size, filename);
}
static void print_summary(long size, char *filename)
}
}
-
/* tiny recursive du */
static long du(char *filename)
{
struct stat statbuf;
long sum;
+ int len;
if ((lstat(filename, &statbuf)) != 0) {
- fprintf(stdout, "du: %s: %s\n", filename, strerror(errno));
+ printf("du: %s: %s\n", filename, strerror(errno));
return 0;
}
du_depth++;
sum = (statbuf.st_blocks >> 1);
- /* Don't add in stuff pointed to by links */
+ /* Don't add in stuff pointed to by symbolic links */
if (S_ISLNK(statbuf.st_mode)) {
- return 0;
+ sum = 0L;
+ if (du_depth == 1)
+ print(sum, filename);
}
if (S_ISDIR(statbuf.st_mode)) {
DIR *dir;
dir = opendir(filename);
if (!dir) {
+ du_depth--;
return 0;
}
+
+ len = strlen(filename);
+ if (filename[len - 1] == '/')
+ filename[--len] = '\0';
+
while ((entry = readdir(dir))) {
char newfile[PATH_MAX + 1];
char *name = entry->d_name;
continue;
}
- if (strlen(filename) + strlen(name) + 1 > PATH_MAX) {
+ if (len + strlen(name) + 1 > PATH_MAX) {
fprintf(stderr, name_too_long, "du");
+ du_depth--;
return 0;
}
sprintf(newfile, "%s/%s", filename, name);
closedir(dir);
print(sum, filename);
}
+ else if (statbuf.st_nlink > 1 && !count_hardlinks) {
+ /* Add files with hard links only once */
+ if (is_in_ino_dev_hashtable(&statbuf, NULL)) {
+ sum = 0L;
+ if (du_depth == 1)
+ print(sum, filename);
+ }
+ else {
+ add_to_ino_dev_hashtable(&statbuf, NULL);
+ }
+ }
du_depth--;
return sum;
}
case 's':
print = print_summary;
break;
+ case 'l':
+ count_hardlinks = 1;
+ break;
case 'h':
+ case '-':
usage(du_usage);
break;
default:
for (; i < argc; i++) {
sum = du(argv[i]);
- if ((sum) && (isDirectory(argv[i], FALSE, NULL))) {
+ if (sum && isDirectory(argv[i], FALSE, NULL)) {
print_normal(sum, argv[i]);
}
+ reset_ino_dev_hashtable();
}
}
exit(0);
}
-/* $Id: du.c,v 1.13 2000/02/13 04:10:57 beppu Exp $ */
+/* $Id: du.c,v 1.16 2000/03/04 21:19:32 erik Exp $ */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/