Applied patch from Gennady Feldman to use single-thread instead of forking.

[oweals/busybox.git] / du.c

diff --git a/du.c b/du.c
index 408ad994cc626c41f3be8e458c14945ae5c4addf..7cb888de86efc692c0c84697900d602a5840f6d9 100644 (file)
--- a/du.c
+++ b/du.c
@@ -3,7 +3,7 @@
  * Mini du implementation for busybox
  *
  *
- * Copyright (C) 1999,2000 by Lineo, inc.
+ * Copyright (C) 1999,2000,2001 by Lineo, inc.
  * Written by John Beppu <beppu@lineo.com>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -22,16 +22,23 @@
  *
  */
 
-#include "busybox.h"
-#define BB_DECLARE_EXTERN
-#define bb_need_name_too_long
-#include "messages.c"
-
 #include <sys/types.h>
 #include <fcntl.h>
 #include <dirent.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <string.h>
 #include <errno.h>
+#include "busybox.h"
+#define BB_DECLARE_EXTERN
+#define bb_need_name_too_long
+#include "messages.c"
+
+
+#ifdef BB_FEATURE_HUMAN_READABLE
+static unsigned long disp_hr = KILOBYTE;
+#endif
 
 typedef void (Display) (long, char *);
 
@@ -42,12 +49,28 @@ static Display *print;
 
 static void print_normal(long size, char *filename)
 {
-       fprintf(stdout, "%ld\t%s\n", size, filename);
+       unsigned long base;
+#ifdef BB_FEATURE_HUMAN_READABLE
+       switch (disp_hr) {
+               case MEGABYTE:
+                       base = KILOBYTE;
+                       break;
+               case KILOBYTE:
+                       base = 1;
+                       break;
+               default:
+                       base = 0;
+       }
+       printf("%s\t%s\n", make_human_readable_str(size, base), filename);
+#else
+       printf("%ld\t%s\n", size, filename);
+#endif
 }
 
 static void print_summary(long size, char *filename)
 {
        if (du_depth == 1) {
+               printf("summary\n");
                print_normal(size, filename);
        }
 }
@@ -60,8 +83,7 @@ static long du(char *filename)
        int len;
 
        if ((lstat(filename, &statbuf)) != 0) {
-               printf("du: %s: %s\n", filename, strerror(errno));
-               return 0;
+               perror_msg_and_die("%s", filename);
        }
 
        du_depth++;
@@ -97,7 +119,7 @@ static long du(char *filename)
                        }
 
                        if (len + strlen(name) + 1 > BUFSIZ) {
-                               errorMsg(name_too_long);
+                               error_msg(name_too_long);
                                du_depth--;
                                return 0;
                        }
@@ -125,6 +147,7 @@ static long du(char *filename)
 
 int du_main(int argc, char **argv)
 {
+       int status = EXIT_SUCCESS;
        int i;
        int c;
 
@@ -132,7 +155,11 @@ int du_main(int argc, char **argv)
        print = print_normal;
 
        /* parse argv[] */
-       while ((c = getopt(argc, argv, "sl")) != EOF) {
+       while ((c = getopt(argc, argv, "sl"
+#ifdef BB_FEATURE_HUMAN_READABLE
+"hm"
+#endif
+"k")) != EOF) {
                        switch (c) {
                        case 's':
                                        print = print_summary;
@@ -140,30 +167,37 @@ int du_main(int argc, char **argv)
                        case 'l':
                                        count_hardlinks = 1;
                                        break;
+#ifdef BB_FEATURE_HUMAN_READABLE
+                       case 'h': disp_hr = 0;        break;
+                       case 'm': disp_hr = MEGABYTE; break;
+#endif
+                       case 'k': break;
                        default:
-                                       usage(du_usage);
+                                       show_usage();
                        }
        }
 
        /* go through remaining args (if any) */
        if (optind >= argc) {
-               du(".");
+               if (du(".") == 0)
+                       status = EXIT_FAILURE;
        } else {
                long sum;
 
                for (i=optind; i < argc; i++) {
-                       sum = du(argv[i]);
-                       if (sum && isDirectory(argv[i], FALSE, NULL)) {
+                       if ((sum = du(argv[i])) == 0)
+                               status = EXIT_FAILURE;
+                       if(is_directory(argv[i], FALSE, NULL)==FALSE) {
                                print_normal(sum, argv[i]);
                        }
                        reset_ino_dev_hashtable();
                }
        }
 
-       return(0);
+       return status;
 }
 
-/* $Id: du.c,v 1.25 2000/09/25 21:45:57 andersen Exp $ */
+/* $Id: du.c,v 1.43 2001/03/09 14:36:42 andersen Exp $ */
 /*
 Local Variables:
 c-file-style: "linux"