imported original firmware WRT54GL_v4.30.11_11_US

1 files changed, 158 insertions, 0 deletions

diff --git a/release/src/router/busybox/df.c b/release/src/router/busybox/df.c
new file mode 100644
index 00000000..8cb13fa6
--- /dev/null
+++ b/release/src/router/busybox/df.c
@@ -0,0 +1,158 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini df implementation for busybox
+ *
+ * Copyright (C) 1999,2000,2001 by Lineo, inc.
+ * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
+ * based on original code by (I think) Bruce Perens <bruce@pixar.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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <mntent.h>
+#include <sys/vfs.h>
+#include <getopt.h>
+#include "busybox.h"
+
+extern const char mtab_file[];	/* Defined in utility.c */
+#ifdef BB_FEATURE_HUMAN_READABLE
+static unsigned long df_disp_hr = KILOBYTE; 
+#endif
+
+static int do_df(char *device, const char *mount_point)
+{
+	struct statfs s;
+	long blocks_used;
+	long blocks_percent_used;
+
+	if (statfs(mount_point, &s) != 0) {
+		perror_msg("%s", mount_point);
+		return FALSE;
+	}
+
+	if (s.f_blocks > 0) {
+		blocks_used = s.f_blocks - s.f_bfree;
+		if(blocks_used == 0)
+			blocks_percent_used = 0;
+		else {
+			blocks_percent_used = (long)
+			  (blocks_used * 100.0 / (blocks_used + s.f_bavail) + 0.5);
+		}
+		if (strcmp(device, "/dev/root") == 0) {
+			/* Adjusts device to be the real root device,
+			 * or leaves device alone if it can't find it */
+			device = find_real_root_device_name(device);
+			if(device==NULL)
+				return FALSE;
+		}
+#ifdef BB_FEATURE_HUMAN_READABLE
+		printf("%-20s %9s ", device,
+				make_human_readable_str(s.f_blocks, s.f_bsize, df_disp_hr));
+
+		printf("%9s ",
+				make_human_readable_str( (s.f_blocks - s.f_bfree), s.f_bsize, df_disp_hr));
+
+		printf("%9s %3ld%% %s\n",
+				make_human_readable_str(s.f_bavail, s.f_bsize, df_disp_hr),
+				blocks_percent_used, mount_point);
+#else
+		printf("%-20s %9ld %9ld %9ld %3ld%% %s\n",
+				device,
+				(long) (s.f_blocks * (s.f_bsize / (double)KILOBYTE)),
+				(long) ((s.f_blocks - s.f_bfree)*(s.f_bsize/(double)KILOBYTE)),
+				(long) (s.f_bavail * (s.f_bsize / (double)KILOBYTE)),
+				blocks_percent_used, mount_point);
+#endif
+	}
+
+	return TRUE;
+}
+
+extern int df_main(int argc, char **argv)
+{
+	int status = EXIT_SUCCESS;
+	int opt = 0;
+	int i = 0;
+	char disp_units_hdr[80] = "1k-blocks"; /* default display is kilobytes */
+
+	while ((opt = getopt(argc, argv, "k"
+#ifdef BB_FEATURE_HUMAN_READABLE
+	"hm"
+#endif
+)) > 0)
+	{
+		switch (opt) {
+#ifdef BB_FEATURE_HUMAN_READABLE
+			case 'h':
+				df_disp_hr = 0;
+				strcpy(disp_units_hdr, "     Size");
+				break;
+			case 'm':
+				df_disp_hr = MEGABYTE;
+				strcpy(disp_units_hdr, "1M-blocks");
+				break;
+#endif
+			case 'k':
+				/* default display is kilobytes */
+				break;
+			default:
+					  show_usage();
+		}
+	}
+
+	printf("%-20s %-14s %s %s %s %s\n", "Filesystem", disp_units_hdr,
+	       "Used", "Available", "Use%", "Mounted on");
+
+	if(optind < argc) {
+		struct mntent *mount_entry;
+		for(i = optind; i < argc; i++)
+		{
+			if ((mount_entry = find_mount_point(argv[i], mtab_file)) == 0) {
+				error_msg("%s: can't find mount point.", argv[i]);
+				status = EXIT_FAILURE;
+			} else if (!do_df(mount_entry->mnt_fsname, mount_entry->mnt_dir))
+				status = EXIT_FAILURE;
+		}
+	} else {
+		FILE *mount_table;
+		struct mntent *mount_entry;
+
+		mount_table = setmntent(mtab_file, "r");
+		if (mount_table == 0) {
+			perror_msg("%s", mtab_file);
+			return EXIT_FAILURE;
+		}
+
+		while ((mount_entry = getmntent(mount_table))) {
+			if (!do_df(mount_entry->mnt_fsname, mount_entry->mnt_dir))
+				status = EXIT_FAILURE;
+		}
+		endmntent(mount_table);
+	}
+
+	return status;
+}
+
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/