From d1e063beb43e595680c65e3804d1f8ddff53373b Mon Sep 17 00:00:00 2001 From: Guido Guenther Date: Sat, 18 Nov 2006 23:48:07 +0100 Subject: Imported Debian version 0.3.8.8 --- e2fslib/dupfs.c | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 e2fslib/dupfs.c (limited to 'e2fslib/dupfs.c') diff --git a/e2fslib/dupfs.c b/e2fslib/dupfs.c new file mode 100644 index 0000000..31579a4 --- /dev/null +++ b/e2fslib/dupfs.c @@ -0,0 +1,92 @@ +/* + * dupfs.c --- duplicate a ext2 filesystem handle + * + * Copyright (C) 1997 Theodore Ts'o. + * + * %Begin-Header% + * This file may be redistributed under the terms of the GNU Public + * License. + * %End-Header% + */ + +#include +#if HAVE_UNISTD_H +#include +#endif +#include +#include + +#include "ext2_fs.h" +#include "ext2fsP.h" + +errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest) +{ + ext2_filsys fs; + errcode_t retval; + + EXT2_CHECK_MAGIC(src, EXT2_ET_MAGIC_EXT2FS_FILSYS); + + retval = ext2fs_get_mem(sizeof(struct struct_ext2_filsys), + (void **) &fs); + if (retval) + return retval; + + *fs = *src; + fs->device_name = 0; + fs->super = 0; + fs->group_desc = 0; + fs->inode_map = 0; + fs->block_map = 0; + fs->badblocks = 0; + fs->dblist = 0; + + io_channel_bumpcount(fs->io); + if (fs->icache) + fs->icache->refcount++; + + retval = ext2fs_get_mem(strlen(src->device_name)+1, + (void **) &fs->device_name); + if (retval) + goto errout; + strcpy(fs->device_name, src->device_name); + + retval = ext2fs_get_mem(SUPERBLOCK_SIZE, (void **) &fs->super); + if (retval) + goto errout; + memcpy(fs->super, src->super, SUPERBLOCK_SIZE); + + retval = ext2fs_get_mem((size_t) fs->desc_blocks * fs->blocksize, + (void **) &fs->group_desc); + if (retval) + goto errout; + memcpy(fs->group_desc, src->group_desc, + (size_t) fs->desc_blocks * fs->blocksize); + + if (src->inode_map) { + retval = ext2fs_copy_bitmap(src->inode_map, &fs->inode_map); + if (retval) + goto errout; + } + if (src->block_map) { + retval = ext2fs_copy_bitmap(src->block_map, &fs->block_map); + if (retval) + goto errout; + } + if (src->badblocks) { + retval = ext2fs_badblocks_copy(src->badblocks, &fs->badblocks); + if (retval) + goto errout; + } + if (src->dblist) { + retval = ext2fs_copy_dblist(src->dblist, &fs->dblist); + if (retval) + goto errout; + } + *dest = fs; + return 0; +errout: + ext2fs_free(fs); + return retval; + +} + -- cgit v1.2.3