mirror of
https://github.com/MidnightCommander/mc
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139 lines
4.1 KiB
C
139 lines
4.1 KiB
C
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/**
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* \file
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* \brief Header: VFS implemntation (?)
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*/
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#ifndef MC_VFS_IMPL_H
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#define MC_VFS_IMPL_H
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#ifdef ENABLE_VFS
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <stddef.h>
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#include <utime.h>
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#include "vfs.h"
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#include "lib/fs.h" /* MC_MAXPATHLEN */
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typedef void *vfsid;
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struct vfs_stamping;
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struct vfs_class {
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struct vfs_class *next;
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const char *name; /* "FIles over SHell" */
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vfs_class_flags_t flags;
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const char *prefix; /* "fish:" */
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void *data; /* this is for filesystem's own use */
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int verrno; /* can't use errno because glibc2 might define errno as function */
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int (*init) (struct vfs_class *me);
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void (*done) (struct vfs_class *me);
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/**
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* The fill_names method shall call the callback function for every
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* filesystem name that this vfs module supports.
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*/
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void (*fill_names) (struct vfs_class *me, fill_names_f);
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/**
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* The which() method shall return the index of the vfs subsystem
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* or -1 if this vfs cannot handle the given pathname.
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*/
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int (*which) (struct vfs_class *me, const char *path);
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void *(*open) (struct vfs_class *me, const char *fname, int flags,
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mode_t mode);
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int (*close) (void *vfs_info);
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ssize_t (*read) (void *vfs_info, char *buffer, size_t count);
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ssize_t (*write) (void *vfs_info, const char *buf, size_t count);
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void *(*opendir) (struct vfs_class *me, const 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 (*stat) (struct vfs_class *me, const char *path, struct stat * buf);
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int (*lstat) (struct vfs_class *me, const char *path, struct stat * buf);
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int (*fstat) (void *vfs_info, struct stat * buf);
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int (*chmod) (struct vfs_class *me, const char *path, int mode);
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int (*chown) (struct vfs_class *me, const char *path, uid_t owner, gid_t group);
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int (*utime) (struct vfs_class *me, const char *path,
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struct utimbuf * times);
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int (*readlink) (struct vfs_class *me, const char *path, char *buf,
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size_t size);
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int (*symlink) (struct vfs_class *me, const char *n1, const char *n2);
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int (*link) (struct vfs_class *me, const char *p1, const char *p2);
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int (*unlink) (struct vfs_class *me, const char *path);
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int (*rename) (struct vfs_class *me, const char *p1, const char *p2);
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int (*chdir) (struct vfs_class *me, const char *path);
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int (*ferrno) (struct vfs_class *me);
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off_t (*lseek) (void *vfs_info, off_t offset, int whence);
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int (*mknod) (struct vfs_class *me, const char *path, mode_t mode, dev_t dev);
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vfsid (*getid) (struct vfs_class *me, const char *path);
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int (*nothingisopen) (vfsid id);
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void (*free) (vfsid id);
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char *(*getlocalcopy) (struct vfs_class *me, const char *filename);
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int (*ungetlocalcopy) (struct vfs_class *me, const char *filename,
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const char *local, int has_changed);
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int (*mkdir) (struct vfs_class *me, const char *path, mode_t mode);
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int (*rmdir) (struct vfs_class *me, const char *path);
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int (*ctl) (void *vfs_info, int ctlop, void *arg);
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int (*setctl) (struct vfs_class *me, const char *path, int ctlop,
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void *arg);
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};
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/*
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* This union is used to ensure that there is enough space for the
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* filename (d_name) when the dirent structure is created.
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*/
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union vfs_dirent {
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struct dirent dent;
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char _extra_buffer[offsetof(struct dirent, d_name) + MC_MAXPATHLEN + 1];
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};
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/* Register a file system class */
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int vfs_register_class (struct vfs_class *vfs);
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struct vfs_class *vfs_split (char *path, char **inpath, char **op);
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char *vfs_path (const char *path);
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/* vfs/direntry.c: */
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void *vfs_s_open (struct vfs_class *me, const char *file, int flags, mode_t mode);
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#ifdef ENABLE_VFS_CPIO
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void init_cpiofs (void);
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#endif
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#ifdef ENABLE_VFS_TAR
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void init_tarfs (void);
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#endif
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#ifdef ENABLE_VFS_SFS
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void init_sfs (void);
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#endif
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#ifdef ENABLE_VFS_EXTFS
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void init_extfs (void);
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#endif
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#ifdef ENABLE_VFS_UNDELFS
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void init_undelfs (void);
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#endif
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#ifdef ENABLE_VFS_FTP
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void init_ftpfs (void);
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#endif
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#ifdef ENABLE_VFS_FISH
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void init_fish (void);
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#endif
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#endif /* ENABLE_VFS */
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#endif /* MC_VFS_IMPL_H */
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