[Ocfs2-tools-commits] mfasheh commits r219 - trunk/extras
svn-commits at oss.oracle.com
svn-commits at oss.oracle.com
Tue Sep 7 19:04:15 CDT 2004
Author: mfasheh
Date: 2004-09-07 19:04:13 -0500 (Tue, 07 Sep 2004)
New Revision: 219
Added:
trunk/extras/find_inode_paths.c
Modified:
trunk/extras/Makefile
Log:
* add find_inode_paths, a simple tool to take an inode block number
and find all paths leading to it.
Modified: trunk/extras/Makefile
===================================================================
--- trunk/extras/Makefile 2004-09-07 22:15:21 UTC (rev 218)
+++ trunk/extras/Makefile 2004-09-08 00:04:13 UTC (rev 219)
@@ -11,7 +11,7 @@
CFLAGS = $(OPTS) -fno-strict-aliasing $(WARNINGS)
-UNINST_PROGRAMS = find_hardlinks find_dup_extents
+UNINST_PROGRAMS = find_hardlinks find_dup_extents find_inode_paths
INCLUDES = -I../libocfs2/include
@@ -32,10 +32,12 @@
FIND_HARDLINKS_CFILES = find_hardlinks.c
FIND_DUP_EXTENTS_CFILES = find_dup_extents.c
+FIND_INODE_PATHS_CFILES = find_inode_paths.c
DIST_FILES = $(FIND_HARDLINKS_CFILES) $(FIND_DUP_EXTENTS_CFILES)
FIND_HARDLINKS_OBJS = $(subst .c,.o,$(FIND_HARDLINKS_CFILES))
FIND_DUP_EXTENTS_OBJS = $(subst .c,.o,$(FIND_DUP_EXTENTS_CFILES))
+FIND_INODE_PATHS_OBJS = $(subst .c,.o,$(FIND_INODE_PATHS_CFILES))
LIBOCFS2 = ../libocfs2/libocfs2.a
LIBS = $(LIBOCFS2) $(COM_ERR_LIBS)
@@ -46,4 +48,7 @@
find_dup_extents: $(FIND_DUP_EXTENTS_OBJS) $(LIBS)
$(LINK)
+find_inode_paths: $(FIND_INODE_PATHS_OBJS) $(LIBS)
+ $(LINK)
+
include $(TOPDIR)/Postamble.make
Added: trunk/extras/find_inode_paths.c
===================================================================
--- trunk/extras/find_inode_paths.c 2004-09-07 22:15:21 UTC (rev 218)
+++ trunk/extras/find_inode_paths.c 2004-09-08 00:04:13 UTC (rev 219)
@@ -0,0 +1,205 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * find_inode_paths.c
+ *
+ * Simple tool to take an inode block number and find all paths
+ * leading to it.
+ *
+ * Copyright (C) 2004 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License, version 2, as published by the Free Software Foundation.
+ *
+ * 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 021110-1307, USA.
+ *
+ * Authors: Mark Fasheh, Joel Becker
+ *
+ * This code is a port of e2fsprogs/lib/ext2fs/dir_iterate.c
+ * Copyright (C) 1993, 1994, 1994, 1995, 1996, 1997 Theodore Ts'o.
+ */
+
+#define _XOPEN_SOURCE 600 /* Triggers magic in features.h */
+#define _LARGEFILE64_SOURCE
+
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+
+#include "ocfs2.h"
+
+static void print_usage(void)
+{
+ fprintf(stderr,
+ "Usage: find_inode_paths <filename> <inode #>\n");
+}
+
+struct walk_path {
+ char *argv0;
+ ocfs2_filesys *fs;
+ char *path;
+ int quiet;
+ uint64_t inode;
+};
+
+static int walk_tree_func(struct ocfs2_dir_entry *dentry,
+ int offset,
+ int blocksize,
+ char *buf,
+ void *priv_data)
+{
+ errcode_t ret;
+ int len, oldval;
+ int reti = 0;
+ char *old_path, *path;
+ struct walk_path *wp = priv_data;
+
+ if (!strncmp(dentry->name, ".", dentry->name_len) ||
+ !strncmp(dentry->name, "..", dentry->name_len))
+ return 0;
+
+ len = strlen(wp->path);
+
+ if (len + dentry->name_len > 4095) {
+ fprintf(stderr, "name is too long in %s\n", wp->path);
+ return OCFS2_DIRENT_ABORT;
+ }
+
+ ret = ocfs2_malloc0(4096, &path);
+ if (ret) {
+ com_err(wp->argv0, ret,
+ "while allocating path memory in %s\n",
+ wp->path);
+ return OCFS2_DIRENT_ABORT;
+ }
+
+ memcpy(path, wp->path, len);
+ memcpy(path + len, dentry->name, dentry->name_len);
+ if (dentry->file_type == OCFS2_FT_DIR)
+ path[len + dentry->name_len] = '/';
+
+ oldval = 0;
+
+ if (!wp->quiet)
+ fprintf(stdout, "[trace] % 13llu %s\n", dentry->inode, path);
+
+ if (dentry->inode == wp->inode)
+ fprintf(stdout, "[found] % 13llu %s\n", dentry->inode, path);
+
+ if (dentry->file_type == OCFS2_FT_DIR) {
+ old_path = wp->path;
+ wp->path = path;
+ ret = ocfs2_dir_iterate(wp->fs, dentry->inode, 0, NULL,
+ walk_tree_func, wp);
+ if (ret) {
+ com_err(wp->argv0, ret,
+ "while walking %s", wp->path);
+ reti = OCFS2_DIRENT_ABORT;
+ }
+ wp->path = old_path;
+ }
+
+ ocfs2_free(&path);
+
+ return reti;
+}
+
+static uint64_t read_number(const char *num)
+{
+ uint64_t val;
+ char *ptr;
+
+ val = strtoull(num, &ptr, 0);
+ if (!ptr || *ptr)
+ return 0;
+
+ return val;
+}
+
+extern int opterr, optind;
+extern char *optarg;
+
+int main(int argc, char *argv[])
+{
+ errcode_t ret;
+ uint64_t blkno;
+ char *filename;
+ ocfs2_filesys *fs;
+ struct walk_path wp;
+
+ blkno = OCFS2_SUPER_BLOCK_BLKNO;
+
+ initialize_ocfs_error_table();
+
+ wp.argv0 = argv[0];
+ wp.quiet = 1;
+ if (argc < 3) {
+ fprintf(stderr, "Missing filename\n");
+ print_usage();
+ return 1;
+ }
+ filename = argv[1];
+
+ wp.inode = read_number(argv[2]);
+ if (!wp.inode) {
+ fprintf(stderr, "invalid inode number\n");
+ print_usage();
+ return 1;
+ }
+
+ ret = ocfs2_open(filename, OCFS2_FLAG_RO, 0, 0, &fs);
+ if (ret) {
+ com_err(argv[0], ret,
+ "while opening file \"%s\"", filename);
+ goto out;
+ }
+ wp.fs = fs;
+ fprintf(stdout, "Finding all paths leading to inode %llu\n",
+ wp.inode);
+
+ if (!wp.quiet)
+ fprintf(stdout, "Walking system directory...\n");
+ wp.path = "<system_dir>/";
+ ret = ocfs2_dir_iterate(fs,
+ OCFS2_RAW_SB(fs->fs_super)->s_system_dir_blkno,
+ 0, NULL, walk_tree_func, &wp);
+ if (ret) {
+ com_err(argv[0], ret,
+ "while walking sysdm dir inode %llu on \"%s\"\n",
+ blkno, filename);
+ goto out_close;
+ }
+ wp.path = "/";
+
+ if (!wp.quiet)
+ fprintf(stdout, "Walking root directory...\n");
+ ret = ocfs2_dir_iterate(fs,
+ OCFS2_RAW_SB(fs->fs_super)->s_root_blkno,
+ 0, NULL, walk_tree_func, &wp);
+ if (ret) {
+ com_err(argv[0], ret,
+ "while walking root inode %llu on \"%s\"\n",
+ blkno, filename);
+ goto out_close;
+ }
+
+out_close:
+ ret = ocfs2_close(fs);
+ if (ret) {
+ com_err(argv[0], ret,
+ "while closing file \"%s\"", filename);
+ }
+
+out:
+ return 0;
+}
+
More information about the Ocfs2-tools-commits
mailing list