mirror of
https://github.com/MidnightCommander/mc
synced 2024-12-23 04:46:55 +03:00
7a7f7a3d85
The VFS code can now be used by other applications (if you compile the libvfs.a target and link against this). Syntax has changes internally from the url-like syntax to a new syntax that does not have ambiguities. A default conversor for the new syntax will be provided in the future, also dealing with the user ~/.mc/ext files is currently in a non-optimal state. Keep an eye on this mailing list. Miguel.
318 lines
8.7 KiB
C
318 lines
8.7 KiB
C
#ifndef __VFS_H
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#define __VFS_H
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#ifdef VFS_STANDALONE
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#include "util-alone.h"
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#undef USE_EXT2FSLIB
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#else
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#define BROKEN_PATHS
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/*
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* We should really only allow /:ftp/ tree to export ftp, but midnight's users may
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* like to be able to cd .. to get back where there were before ftp. How to solve?
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* Ok, we'll allow /any/path/:ftp/ to access ftp tree. Broken, yes.
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*/
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#endif
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#if !defined(SCO_FLAVOR) || !defined(_SYS_SELECT_H)
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# include <sys/time.h> /* alex: this redefines struct timeval */
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#endif /* SCO_FLAVOR */
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#ifdef HAVE_UTIME_H
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# include <utime.h>
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#else
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struct utimbuf {
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time_t actime;
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time_t modtime;
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};
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#endif
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#ifdef USE_VFS
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#ifdef HAVE_MMAP
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#include <sys/mman.h>
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#endif
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/* Our virtual file system layer */
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typedef void * vfsid;
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struct vfs_stamping;
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typedef struct {
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void *(*open)(char *fname, int flags, int mode);
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int (*close)(void *vfs_info);
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int (*read)(void *vfs_info, char *buffer, int count);
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int (*write)(void *vfs_info, char *buf, int count);
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void *(*opendir)(char *dirname);
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void *(*readdir)(void *vfs_info);
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int (*closedir)(void *vfs_info);
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int (*telldir)(void *dir);
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void (*seekdir)(void *dir, int offset);
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int (*stat)(char *path, struct stat *buf);
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int (*lstat)(char *path, struct stat *buf);
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int (*fstat)(void *vfs_info, struct stat *buf);
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int (*chmod)(char *path, int mode);
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int (*chown)(char *path, int owner, int group);
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int (*utime)(char *path, struct utimbuf *times);
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int (*readlink)(char *path, char *buf, int size);
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int (*symlink)(char *n1, char *n2);
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int (*link)(char *p1, char *p2);
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int (*unlink)(char *path);
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int (*rename)(char *p1, char *p2);
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int (*chdir)(char *path);
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int (*ferrno)(void);
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int (*lseek)(void *vfs_info, off_t offset, int whence);
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int (*mknod)(char *path, int mode, int dev);
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vfsid (*getid)(char *path, struct vfs_stamping **parent);
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int (*nothingisopen)(vfsid id);
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void (*free)(vfsid id);
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char *(*getlocalcopy)(char *filename);
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void (*ungetlocalcopy)(char *filename, char *local, int has_changed);
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int (*mkdir)(char *path, mode_t mode);
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int (*rmdir)(char *path);
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int (*ctl)(void *vfs_info, int ctlop, int arg);
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int (*setctl)(char *path, int ctlop, char *arg);
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void (*forget_about)(char *path);
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#ifdef HAVE_MMAP
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caddr_t (*mmap)(caddr_t addr, size_t len, int prot, int flags, void *vfs_info, off_t offset);
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int (*munmap)(caddr_t addr, size_t len, void *vfs_info);
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#endif
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} vfs;
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/* Other file systems */
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extern vfs local_vfs_ops;
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extern vfs tarfs_vfs_ops;
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extern vfs ftpfs_vfs_ops;
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extern vfs mcfs_vfs_ops;
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extern vfs extfs_vfs_ops;
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extern vfs undelfs_vfs_ops;
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struct vfs_stamping {
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vfs *v;
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vfsid id;
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struct vfs_stamping *parent; /* At the moment applies to tarfs only */
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struct vfs_stamping *next;
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struct timeval time;
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};
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void vfs_init (void);
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void vfs_shut (void);
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extern int vfs_type_absolute;
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vfs *vfs_type (char *path);
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vfsid vfs_ncs_getid (vfs *nvfs, char *dir, struct vfs_stamping **par);
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void vfs_rm_parents (struct vfs_stamping *stamp);
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char *vfs_path (char *path);
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char *vfs_canon (char *path);
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char *mc_get_current_wd (char *buffer, int bufsize);
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int vfs_current_is_local (void);
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int vfs_current_is_extfs (void);
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int vfs_current_is_tarfs (void);
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int vfs_file_is_local (char *name);
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int vfs_file_is_ftp (char *filename);
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char *vfs_get_current_dir (void);
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void vfs_stamp (vfs *, vfsid);
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void vfs_rmstamp (vfs *, vfsid, int);
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void vfs_addstamp (vfs *, vfsid, struct vfs_stamping *);
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void vfs_add_noncurrent_stamps (vfs *, vfsid, struct vfs_stamping *);
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void vfs_add_current_stamps (void);
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void vfs_free_resources(char *path);
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void vfs_timeout_handler ();
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int vfs_timeouts ();
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void vfs_force_expire (char *pathname);
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void vfs_fill_names (void (*)(char *));
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/* Required for the vfs_canon routine */
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char *tarfs_analysis (char *inname, char **archive, int is_dir);
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void ftpfs_init(void);
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void ftpfs_done(void);
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void ftpfs_set_debug (char *file);
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#ifdef USE_NETCODE
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void ftpfs_hint_reread(int reread);
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void ftpfs_flushdir(void);
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#else
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# define ftpfs_flushdir()
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# define ftpfs_hint_reread(x)
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#endif
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/* They fill the file system names */
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void mcfs_fill_names (void (*)(char *));
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void ftpfs_fill_names (void (*)(char *));
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void tarfs_fill_names (void (*)(char *));
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/* Only the routines outside of the VFS module need the emulation macros */
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int mc_open (char *file, int flags, ...);
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int mc_close (int handle);
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int mc_read (int handle, char *buffer, int count);
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int mc_write (int hanlde, char *buffer, int count);
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off_t mc_lseek (int fd, off_t offset, int whence);
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int mc_chdir (char *);
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DIR *mc_opendir (char *dirname);
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struct dirent *mc_readdir(DIR *dirp);
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int mc_closedir (DIR *dir);
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int mc_telldir (DIR *dir);
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void mc_seekdir (DIR *dir, int offset);
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int mc_stat (char *path, struct stat *buf);
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int mc_lstat (char *path, struct stat *buf);
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int mc_fstat (int fd, struct stat *buf);
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int mc_chmod (char *path, int mode);
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int mc_chown (char *path, int owner, int group);
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int mc_utime (char *path, struct utimbuf *times);
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int mc_readlink(char *path, char *buf, int bufsiz);
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int mc_unlink (char *path);
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int mc_symlink (char *name1, char *name2);
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int mc_link (char *name1, char *name2);
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int mc_mknod (char *, int, int);
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int mc_rename (char *original, char *target);
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int mc_write (int fd, char *buf, int nbyte);
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int mc_rmdir (char *path);
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int mc_mkdir (char *path, mode_t mode);
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char *mc_getlocalcopy (char *filename);
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void mc_ungetlocalcopy (char *filename, char *local, int has_changed);
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char *mc_def_getlocalcopy (char *filename);
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void mc_def_ungetlocalcopy (char *filename, char *local, int has_changed);
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int mc_ctl (int fd, int ctlop, int arg);
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int mc_setctl (char *path, int ctlop, char *arg);
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#ifdef HAVE_MMAP
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caddr_t mc_mmap (caddr_t, size_t, int, int, int, off_t);
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int mc_unmap (caddr_t, size_t);
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int mc_munmap (caddr_t addr, size_t len);
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#endif /* HAVE_MMAP */
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#else
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#ifdef USE_NETCODE
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# undef USE_NETCODE
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#endif
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# undef USE_NETCODE
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# define vfs_fill_names(x)
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# define vfs_add_current_stamps()
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# define vfs_current_is_local() 1
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# define vfs_file_is_local(x) 1
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# define vfs_file_is_ftp(x) 0
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# define vfs_current_is_tarfs() 0
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# define vfs_current_is_extfs() 0
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# define vfs_path(x) x
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# define mc_close close
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# define mc_read read
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# define mc_write write
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# define mc_lseek lseek
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# define mc_opendir opendir
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# define mc_readdir readdir
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# define mc_closedir closedir
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# define mc_telldir telldir
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# define mc_seekdir seekdir
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# define mc_get_current_wd(x,size) get_current_wd (x, size)
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# define mc_fstat fstat
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# define mc_lstat lstat
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# define mc_readlink readlink
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# define mc_symlink symlink
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# define mc_rename rename
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#ifndef __os2__
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# define mc_open open
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# define mc_utime utime
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# define mc_chmod chmod
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# define mc_chown chown
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# define mc_chdir chdir
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# define mc_unlink unlink
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#endif
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# define mc_mmap mmap
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# define mc_munmap munmap
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# define mc_ctl(a,b,c) 0
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# define mc_setctl(a,b,c)
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# define mc_stat stat
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# define mc_mknod mknod
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# define mc_link link
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# define mc_mkdir mkdir
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# define mc_rmdir rmdir
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# define is_special_prefix(x) 0
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# define vfs_type(x) (vfs *)(NULL)
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# define vfs_setup_wd()
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# define vfs_init()
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# define vfs_shut()
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# define vfs_canon(p) strdup (canonicalize_pathname(p))
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# define vfs_free_resources()
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# define vfs_timeout_handler()
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# define vfs_timeouts() 0
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# define vfs_force_expire ()
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typedef int vfs;
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# define mc_getlocalcopy(x) NULL
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# define mc_ungetlocalcopy(x,y,z)
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# define ftpfs_hint_reread(x)
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# define ftpfs_flushdir()
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#ifdef _OS_NT
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# undef mc_rmdir
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#endif
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#ifdef OS2_NT
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# undef mc_ctl
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# undef mc_unlink
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# define mc_ctl(a,b,c) 0
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# ifndef __EMX__
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# undef mc_mkdir
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# define mc_mkdir(a,b) mkdir(a)
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# endif
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#endif
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#endif /* USE_VFS */
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#define mc_errno errno
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#ifdef WANT_PARSE_LS_LGA
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int parse_ls_lga (char *p, struct stat *s, char **filename, char **linkname);
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#endif
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extern void vfs_die (char *msg);
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extern char *vfs_get_password (char *msg);
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#define MCCTL_SETREMOTECOPY 0
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#define MCCTL_ISREMOTECOPY 1
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#define MCCTL_REMOTECOPYCHUNK 2
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#define MCCTL_FINISHREMOTE 3
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#define MCCTL_FLUSHDIR 4
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#define MCCTL_REMOVELOCALCOPY 5
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/* Return codes from the ${fs}_ctl routine */
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#define MCERR_TARGETOPEN -1
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/* Can't open target file */
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#define MCERR_READ -2
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/* Read error on source file */
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#define MCERR_WRITE -3
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/* Write error on target file */
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#define MCERR_FINISH -4
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/* Finished transfer */
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#define MCERR_DATA_ON_STDIN -5
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/* Data waiting on stdin to be processed */
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#endif /* __VFS_H */
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