diff options
Diffstat (limited to 'sys/gnu/ext2fs/ext2_inode_cnv.c')
| -rw-r--r-- | sys/gnu/ext2fs/ext2_inode_cnv.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/sys/gnu/ext2fs/ext2_inode_cnv.c b/sys/gnu/ext2fs/ext2_inode_cnv.c new file mode 100644 index 0000000..1ab48e9 --- /dev/null +++ b/sys/gnu/ext2fs/ext2_inode_cnv.c @@ -0,0 +1,157 @@ +/* + * Copyright (c) 1995 The University of Utah and + * the Computer Systems Laboratory at the University of Utah (CSL). + * All rights reserved. + * + * Permission to use, copy, modify and distribute this software is hereby + * granted provided that (1) source code retains these copyright, permission, + * and disclaimer notices, and (2) redistributions including binaries + * reproduce the notices in supporting documentation, and (3) all advertising + * materials mentioning features or use of this software display the following + * acknowledgement: ``This product includes software developed by the + * Computer Systems Laboratory at the University of Utah.'' + * + * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS + * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF + * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * CSL requests users of this software to return to csl-dist@cs.utah.edu any + * improvements that they make and grant CSL redistribution rights. + * + * Utah $Hdr$ + */ + +/* + * routines to convert on disk ext2 inodes in dinodes and back + */ +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/time.h> +#include <ufs/ufs/quota.h> +#include <ufs/ufs/inode.h> + +/* these defs would destroy the ext2_fs_i #include */ +#undef i_atime +#undef i_blocks +#undef i_ctime +#undef i_db +#undef i_flags +#undef i_gen +#undef i_gid +#undef i_ib +#undef i_mode +#undef i_mtime +#undef i_nlink +#undef i_rdev +#undef i_shortlink +#undef i_size +#undef i_uid + +#include <gnu/ext2fs/ext2_fs.h> +#include <gnu/ext2fs/ext2_fs_i.h> + +void ext2_print_dinode( di ) + struct dinode *di; +{ + int i; + printf( /* "Inode: %5d" */ + " Type: %10s Mode: 0x%o Flags: 0x%x Version: %d\n", + "n/a", di->di_mode, di->di_flags, di->di_gen); + printf( "User: %5d Group: %5d Size: %d\n", + di->di_uid, di->di_gid, di->di_size); + printf( "Links: %3d Blockcount: %d\n", + di->di_nlink, di->di_blocks); + printf( "ctime: 0x%x", di->di_ctime.ts_sec); +#if !defined(__FreeBSD__) + print_time(" -- %s\n", di->di_ctime.ts_sec); +#endif + printf( "atime: 0x%x", di->di_atime.ts_sec); +#if !defined(__FreeBSD__) + print_time(" -- %s\n", di->di_atime.ts_sec); +#endif + printf( "mtime: 0x%x", di->di_mtime.ts_sec); +#if !defined(__FreeBSD__) + print_time(" -- %s\n", di->di_mtime.ts_sec); +#endif + printf( "BLOCKS: "); + for(i=0; i < (di->di_blocks <= 24 ? ((di->di_blocks+1)/2): 12); i++) + printf("%d ", di->di_db[i]); + printf("\n"); +} + +void ext2_print_inode( in ) + struct inode *in; +{ + printf( "Inode: %5d", in->i_number); + ext2_print_dinode(&in->i_din); +} + +/* + * raw ext2 inode to dinode + */ +int ext2_ei2di(ei, di) + struct ext2_inode *ei; + struct dinode *di; +{ + int i; + + di->di_nlink = ei->i_links_count; + /* Godmar thinks - if the link count is zero, then the inode is + unused - according to ext2 standards. Ufs marks this fact + by setting i_mode to zero - why ? + I can see that this might lead to problems in an undelete. + */ + di->di_mode = ei->i_links_count ? ei->i_mode : 0; + di->di_size = ei->i_size; + di->di_atime.ts_sec = ei->i_atime; + di->di_mtime.ts_sec = ei->i_mtime; + di->di_ctime.ts_sec = ei->i_ctime; + di->di_flags = 0; + di->di_flags |= (ei->i_flags & EXT2_APPEND_FL) ? APPEND : 0; + di->di_flags |= (ei->i_flags & EXT2_IMMUTABLE_FL) ? IMMUTABLE : 0; + di->di_blocks = ei->i_blocks; + di->di_gen = ei->i_version; /* XXX is that true ??? */ + di->di_uid = ei->i_uid; + di->di_gid = ei->i_gid; + /* XXX use memcpy */ + for(i = 0; i < NDADDR; i++) + di->di_db[i] = ei->i_block[i]; + for(i = 0; i < NIADDR; i++) + di->di_ib[i] = ei->i_block[EXT2_NDIR_BLOCKS + i]; +} + +/* + * dinode to raw ext2 inode + */ +int ext2_di2ei(di, ei) + struct dinode *di; + struct ext2_inode *ei; +{ + int i; + + ei->i_mode = di->di_mode; + ei->i_links_count = di->di_nlink; + /* + Godmar thinks: if dtime is nonzero, ext2 says this inode + has been deleted, this would correspond to a zero link count + */ + ei->i_dtime = ei->i_links_count ? 0 : di->di_mtime.ts_sec; + ei->i_size = di->di_size; + ei->i_atime = di->di_atime.ts_sec; + ei->i_mtime = di->di_mtime.ts_sec; + ei->i_ctime = di->di_ctime.ts_sec; + ei->i_flags = di->di_flags; + ei->i_flags = 0; + ei->i_flags |= (di->di_flags & APPEND) ? EXT2_APPEND_FL: 0; + ei->i_flags |= (di->di_flags & IMMUTABLE) + ? EXT2_IMMUTABLE_FL: 0; + ei->i_blocks = di->di_blocks; + ei->i_version = di->di_gen; /* XXX is that true ??? */ + ei->i_uid = di->di_uid; + ei->i_gid = di->di_gid; + /* XXX use memcpy */ + for(i = 0; i < NDADDR; i++) + ei->i_block[i] = di->di_db[i]; + for(i = 0; i < NIADDR; i++) + ei->i_block[EXT2_NDIR_BLOCKS + i] = di->di_ib[i]; +} |
