mc/lib/vfs/mc-vfs/vfs-impl.h

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/**
* \file
* \brief Header: VFS implemntation (?)
*/
#ifndef MC_VFS_IMPL_H
#define MC_VFS_IMPL_H
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#ifdef ENABLE_VFS
#include <sys/types.h>
#include <dirent.h>
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#include <stddef.h>
#include <utime.h>
#include "lib/fs.h" /* MC_MAXPATHLEN */
typedef void *vfsid;
struct vfs_stamping;
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/**
* This is the type of callback function passed to vfs_fill_names.
* It gets the name of the virtual file system as its first argument.
* See also:
* vfs_fill_names().
*/
typedef void (*fill_names_f) (const char *);
struct vfs_class {
struct vfs_class *next;
const char *name; /* "FIles over SHell" */
int flags;
const char *prefix; /* "fish:" */
void *data; /* this is for filesystem's own use */
int verrno; /* can't use errno because glibc2 might define errno as function */
int (*init) (struct vfs_class *me);
void (*done) (struct vfs_class *me);
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/**
* The fill_names method shall call the callback function for every
* filesystem name that this vfs module supports.
*/
void (*fill_names) (struct vfs_class *me, fill_names_f);
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/**
* The which() method shall return the index of the vfs subsystem
* or -1 if this vfs cannot handle the given pathname.
*/
int (*which) (struct vfs_class *me, const char *path);
void *(*open) (struct vfs_class *me, const char *fname, int flags,
int mode);
int (*close) (void *vfs_info);
ssize_t (*read) (void *vfs_info, char *buffer, int count);
ssize_t (*write) (void *vfs_info, const char *buf, int count);
void *(*opendir) (struct vfs_class *me, const char *dirname);
void *(*readdir) (void *vfs_info);
int (*closedir) (void *vfs_info);
int (*stat) (struct vfs_class *me, const char *path, struct stat * buf);
int (*lstat) (struct vfs_class *me, const char *path, struct stat * buf);
int (*fstat) (void *vfs_info, struct stat * buf);
int (*chmod) (struct vfs_class *me, const char *path, int mode);
int (*chown) (struct vfs_class *me, const char *path, int owner, int group);
int (*utime) (struct vfs_class *me, const char *path,
struct utimbuf * times);
int (*readlink) (struct vfs_class *me, const char *path, char *buf,
size_t size);
int (*symlink) (struct vfs_class *me, const char *n1, const char *n2);
int (*link) (struct vfs_class *me, const char *p1, const char *p2);
int (*unlink) (struct vfs_class *me, const char *path);
int (*rename) (struct vfs_class *me, const char *p1, const char *p2);
int (*chdir) (struct vfs_class *me, const char *path);
int (*ferrno) (struct vfs_class *me);
off_t (*lseek) (void *vfs_info, off_t offset, int whence);
int (*mknod) (struct vfs_class *me, const char *path, int mode, int dev);
vfsid (*getid) (struct vfs_class *me, const char *path);
int (*nothingisopen) (vfsid id);
void (*free) (vfsid id);
char *(*getlocalcopy) (struct vfs_class *me, const char *filename);
int (*ungetlocalcopy) (struct vfs_class *me, const char *filename,
const char *local, int has_changed);
int (*mkdir) (struct vfs_class *me, const char *path, mode_t mode);
int (*rmdir) (struct vfs_class *me, const char *path);
int (*ctl) (void *vfs_info, int ctlop, void *arg);
int (*setctl) (struct vfs_class *me, const char *path, int ctlop,
void *arg);
};
/*
* This union is used to ensure that there is enough space for the
* filename (d_name) when the dirent structure is created.
*/
union vfs_dirent {
struct dirent dent;
char _extra_buffer[offsetof(struct dirent, d_name) + MC_MAXPATHLEN + 1];
};
/* Register a file system class */
int vfs_register_class (struct vfs_class *vfs);
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#ifdef ENABLE_VFS_SMB
/* Interface for requesting SMB credentials. */
struct smb_authinfo {
char *host;
char *share;
char *domain;
char *user;
char *password;
};
struct smb_authinfo *vfs_smb_get_authinfo (const char *host,
const char *share,
const char *domain,
const char *user);
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#endif /* ENABLE_VFS_SMB */
struct vfs_class *vfs_get_class (const char *path);
struct vfs_class *vfs_split (char *path, char **inpath, char **op);
char *vfs_path (const char *path);
int vfs_file_class_flags (const char *filename);
void vfs_fill_names (fill_names_f);
/* vfs/direntry.c: */
void *vfs_s_open (struct vfs_class *, const char *, int, int);
void init_cpiofs (void);
void init_extfs (void);
void init_fish (void);
void init_sfs (void);
void init_tarfs (void);
void init_undelfs (void);
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#endif /* ENABLE_VFS */
#endif /* MC_VFS_IMPL_H */