69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
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/* nwvolume.h 15-Jan-96 */
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/* (C)opyright (C) 1993,1995 Martin Stover, Marburg, Germany
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#define MAX_DEV_NAMESPACE_MAPS 256
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typedef struct {
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int dev;
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int namespace;
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} DEV_NAMESPACE_MAP;
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/*
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* This is inserted for namespace calls, to can map an
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* volume->dev->inode->namespace to an uint32 basehandle
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* without loosing too many places.
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*/
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typedef struct {
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uint8 *sysname; /* VOL_NAME */
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uint8 *unixname; /* UNIX-Verzeichnis */
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int unixnamlen; /* len of unixname */
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DEV_NAMESPACE_MAP *dev_namespace_maps[MAX_DEV_NAMESPACE_MAPS];
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int maps_count; /* count of dev_namespace_maps */
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uint8 options; /* *_1_* alles in Kleinbuchstaben */
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} NW_VOL;
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#define VOL_OPTION_DOWNSHIFT 1
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#define VOL_OPTION_IS_PIPE 2 /* Volume has only pipes */
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/* stolen from GNU-fileutils */
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/* Space usage statistics for a filesystem. Blocks are 512-byte. */
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struct fs_usage {
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long fsu_blocks; /* Total blocks. */
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long fsu_bfree; /* Free blocks available to superuser. */
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long fsu_bavail; /* Free blocks available to non-superuser. */
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long fsu_files; /* Total file nodes. */
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long fsu_ffree; /* Free file nodes. */
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};
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extern NW_VOL nw_volumes[MAX_NW_VOLS];
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extern int used_nw_volumes;
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extern void nw_init_volumes(FILE *f);
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extern int nw_get_volume_number(uint8 *volname, int namelen);
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extern int nw_get_volume_name(int volnr, uint8 *volname);
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extern int nw_get_fs_usage(char *volname, struct fs_usage *fsu);
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extern int get_volume_options(int volnr, int mode);
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extern uint32 nw_vol_inode_to_handle(int volume, ino_t inode,
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DEV_NAMESPACE_MAP *dnm);
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extern ino_t nw_vol_handle_to_inode(int volume, uint32 handle,
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DEV_NAMESPACE_MAP *dnm);
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