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libnfs.h
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libnfs.h
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/*
Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/*
* This is the highlevel interface to access NFS resources using a posix-like interface
*/
#ifndef _LIBNFS_H_
#define _LIBNFS_H_
#include <stdint.h>
#if defined(ANDROID)
#include <sys/time.h>
#endif
#if defined(AROS)
#include <sys/time.h>
#endif
#if defined(__APPLE__) && defined(__MACH__)
#include <sys/time.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define LIBNFS_FEATURE_READAHEAD
#define NFS_BLKSIZE 4096
struct nfs_context;
struct rpc_context;
struct nfs_url {
char *server;
char *path;
char *file;
};
#if defined(WIN32)
#define EXTERN __declspec( dllexport )
#else
#define EXTERN
#endif
#if defined(WIN32)
struct statvfs {
uint32_t f_bsize;
uint32_t f_frsize;
uint64_t f_blocks;
uint64_t f_bfree;
uint64_t f_bavail;
uint32_t f_files;
uint32_t f_ffree;
uint32_t f_favail;
uint32_t f_fsid;
uint32_t f_flag;
uint32_t f_namemax;
};
struct utimbuf {
time_t actime;
time_t modtime;
};
#define R_OK 4
#define W_OK 2
#define X_OK 1
#endif
/*
* Used for interfacing the async version of the api into an external eventsystem
*/
EXTERN int nfs_get_fd(struct nfs_context *nfs);
EXTERN int nfs_which_events(struct nfs_context *nfs);
EXTERN int nfs_service(struct nfs_context *nfs, int revents);
EXTERN int nfs_queue_length(struct nfs_context *nfs);
/*
* Used if you need different credentials than the default for the current user.
*/
struct AUTH;
EXTERN void nfs_set_auth(struct nfs_context *nfs, struct AUTH *auth);
/*
* When an operation failed, this function can extract a detailed error string.
*/
EXTERN char *nfs_get_error(struct nfs_context *nfs);
/*
* Callback for all ASYNC nfs functions
*/
typedef void (*nfs_cb)(int err, struct nfs_context *nfs, void *data, void *private_data);
/*
* Callback for all ASYNC rpc functions
*/
typedef void (*rpc_cb)(struct rpc_context *rpc, int status, void *data, void *private_data);
/*
* NFS CONTEXT.
*/
/*
* Create an NFS c, the context.
* Function returns
* NULL : Failed to create a context.
* *nfs : A pointer to an nfs context.
*/
EXTERN struct nfs_context *nfs_init_context(void);
/*
* Destroy an nfs context.
*/
EXTERN void nfs_destroy_context(struct nfs_context *nfs);
/*
* URL parsing functions.
* These functions all parse a URL of the form
* nfs://server/path/file?argv=val[&arg=val]*
* and returns a nfs_url.
*
* Apart from parsing the URL the functions will also update
* the nfs context to reflect settings controlled via url arguments.
*
* Current URL arguments are :
* tcp-syncnt=<int> : Number of SYNs to send during the seccion establish
* before failing settin up the tcp connection to the
* server.
* uid=<int> : UID value to use when talking to the server.
* default it 65534 on Windows and getuid() on unixen.
* gid=<int> : GID value to use when talking to the server.
* default it 65534 on Windows and getgid() on unixen.
*/
/*
* Parse a complete NFS URL including, server, path and
* filename. Fail if any component is missing.
*/
EXTERN struct nfs_url *nfs_parse_url_full(struct nfs_context *nfs, const char *url);
/*
* Parse an NFS URL, but do not split path and file. File
* in the resulting struct remains NULL.
*/
EXTERN struct nfs_url *nfs_parse_url_dir(struct nfs_context *nfs, const char *url);
/*
* Parse an NFS URL, but do not fail if file, path or even server is missing.
* Check elements of the resulting struct for NULL.
*/
EXTERN struct nfs_url *nfs_parse_url_incomplete(struct nfs_context *nfs, const char *url);
/*
* Free the URL struct returned by the nfs_parse_url_* functions.
*/
EXTERN void nfs_destroy_url(struct nfs_url *url);
struct nfsfh;
/*
* Get the maximum supported READ3 size by the server
*/
EXTERN uint64_t nfs_get_readmax(struct nfs_context *nfs);
/*
* Get the maximum supported WRITE3 size by the server
*/
EXTERN uint64_t nfs_get_writemax(struct nfs_context *nfs);
/*
* MODIFY CONNECT PARAMTERS
*/
EXTERN void nfs_set_tcp_syncnt(struct nfs_context *nfs, int v);
EXTERN void nfs_set_uid(struct nfs_context *nfs, int uid);
EXTERN void nfs_set_gid(struct nfs_context *nfs, int gid);
EXTERN void nfs_set_readahead(struct nfs_context *nfs, uint32_t v);
/*
* MOUNT THE EXPORT
*/
/*
* Async nfs mount.
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is NULL
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *exportname, nfs_cb cb, void *private_data);
/*
* Sync nfs mount.
* Function returns
* 0 : The operation was successfull.
* -errno : The command failed.
*/
EXTERN int nfs_mount(struct nfs_context *nfs, const char *server, const char *exportname);
/*
* STAT()
*/
/*
* Async stat(<filename>)
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is struct stat *
* -errno : An error occured.
* data is the error string.
*/
/* This function is deprecated. Use nfs_stat64_async() instead */
struct stat;
EXTERN int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
/*
* Sync stat(<filename>)
* Function returns
* 0 : The operation was successfull.
* -errno : The command failed.
*/
/* This function is deprecated. Use nfs_stat64() instead */
#ifdef WIN32
EXTERN int nfs_stat(struct nfs_context *nfs, const char *path, struct __stat64 *st);
#else
EXTERN int nfs_stat(struct nfs_context *nfs, const char *path, struct stat *st);
#endif
/* nfs_stat64
* 64 bit version if stat. All fields are always 64bit.
* Use these functions instead of nfs_stat[_async](), especially if you
* have weird stat structures.
*/
/*
* STAT()
*/
struct nfs_stat_64 {
uint64_t nfs_dev;
uint64_t nfs_ino;
uint64_t nfs_mode;
uint64_t nfs_nlink;
uint64_t nfs_uid;
uint64_t nfs_gid;
uint64_t nfs_rdev;
uint64_t nfs_size;
uint64_t nfs_blksize;
uint64_t nfs_blocks;
uint64_t nfs_atime;
uint64_t nfs_mtime;
uint64_t nfs_ctime;
};
/*
* Async stat(<filename>)
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is struct nfs_stat_64 *
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_stat64_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
/*
* Sync stat(<filename>)
* Function returns
* 0 : The operation was successfull.
* -errno : The command failed.
*/
EXTERN int nfs_stat64(struct nfs_context *nfs, const char *path, struct nfs_stat_64 *st);
/*
* FSTAT()
*/
/*
* Async fstat(nfsfh *)
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is struct stat *
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data);
/*
* Sync fstat(nfsfh *)
* Function returns
* 0 : The operation was successfull.
* -errno : The command failed.
*/
#ifdef WIN32
EXTERN int nfs_fstat(struct nfs_context *nfs, struct nfsfh *nfsfh, struct __stat64 *st);
#else
EXTERN int nfs_fstat(struct nfs_context *nfs, struct nfsfh *nfsfh, struct stat *st);
#endif
/*
* OPEN()
*/
/*
* Async open(<filename>)
*
* mode is a combination of the flags :
* O_RDOLNY, O_WRONLY, O_RDWR , O_SYNC, O_APPEND
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* Supported flags are
* O_APPEND
* O_RDONLY
* O_WRONLY
* O_RDWR
* O_TRUNC (Only valid with O_RDWR or O_WRONLY. Ignored otherwise.)
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is a struct *nfsfh;
* The nfsfh is close using nfs_close().
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_open_async(struct nfs_context *nfs, const char *path, int flags, nfs_cb cb, void *private_data);
/*
* Sync open(<filename>)
* Function returns
* 0 : The operation was successfull. *nfsfh is filled in.
* -errno : The command failed.
*/
EXTERN int nfs_open(struct nfs_context *nfs, const char *path, int flags, struct nfsfh **nfsfh);
/*
* CLOSE
*/
/*
* Async close(nfsfh)
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is NULL.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data);
/*
* Sync close(nfsfh)
* Function returns
* 0 : The operation was successfull.
* -errno : The command failed.
*/
EXTERN int nfs_close(struct nfs_context *nfs, struct nfsfh *nfsfh);
/*
* PREAD()
*/
/*
* Async pread()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* >=0 : Success.
* status is numer of bytes read.
* data is a pointer to the returned data.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, nfs_cb cb, void *private_data);
/*
* Sync pread()
* Function returns
* >=0 : numer of bytes read.
* -errno : An error occured.
*/
EXTERN int nfs_pread(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, char *buf);
/*
* READ()
*/
/*
* Async read()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* >=0 : Success.
* status is numer of bytes read.
* data is a pointer to the returned data.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, nfs_cb cb, void *private_data);
/*
* Sync read()
* Function returns
* >=0 : numer of bytes read.
* -errno : An error occured.
*/
EXTERN int nfs_read(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf);
/*
* PWRITE()
*/
/*
* Async pwrite()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* >=0 : Success.
* status is numer of bytes written.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, char *buf, nfs_cb cb, void *private_data);
/*
* Sync pwrite()
* Function returns
* >=0 : numer of bytes written.
* -errno : An error occured.
*/
EXTERN int nfs_pwrite(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, char *buf);
/*
* WRITE()
*/
/*
* Async write()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* >=0 : Success.
* status is numer of bytes written.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf, nfs_cb cb, void *private_data);
/*
* Sync write()
* Function returns
* >=0 : numer of bytes written.
* -errno : An error occured.
*/
EXTERN int nfs_write(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf);
/*
* LSEEK()
*/
/*
* Async lseek()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* >=0 : Success.
* data is uint64_t * for the current position.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int64_t offset, int whence, nfs_cb cb, void *private_data);
/*
* Sync lseek()
* Function returns
* >=0 : numer of bytes read.
* -errno : An error occured.
*/
EXTERN int nfs_lseek(struct nfs_context *nfs, struct nfsfh *nfsfh, int64_t offset, int whence, uint64_t *current_offset);
/*
* FSYNC()
*/
/*
* Async fsync()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data);
/*
* Sync fsync()
* Function returns
* 0 : Success
* -errno : An error occured.
*/
EXTERN int nfs_fsync(struct nfs_context *nfs, struct nfsfh *nfsfh);
/*
* TRUNCATE()
*/
/*
* Async truncate()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_truncate_async(struct nfs_context *nfs, const char *path, uint64_t length, nfs_cb cb, void *private_data);
/*
* Sync truncate()
* Function returns
* 0 : Success
* -errno : An error occured.
*/
EXTERN int nfs_truncate(struct nfs_context *nfs, const char *path, uint64_t length);
/*
* FTRUNCATE()
*/
/*
* Async ftruncate()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length, nfs_cb cb, void *private_data);
/*
* Sync ftruncate()
* Function returns
* 0 : Success
* -errno : An error occured.
*/
EXTERN int nfs_ftruncate(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length);
/*
* MKDIR()
*/
/*
* Async mkdir()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
/*
* Sync mkdir()
* Function returns
* 0 : Success
* -errno : An error occured.
*/
EXTERN int nfs_mkdir(struct nfs_context *nfs, const char *path);
/*
* RMDIR()
*/
/*
* Async rmdir()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
/*
* Sync rmdir()
* Function returns
* 0 : Success
* -errno : An error occured.
*/
EXTERN int nfs_rmdir(struct nfs_context *nfs, const char *path);
/*
* CREAT()
*/
/*
* Async creat()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is a struct *nfsfh;
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data);
/*
* Sync creat()
* Function returns
* 0 : Success
* -errno : An error occured.
*/
EXTERN int nfs_creat(struct nfs_context *nfs, const char *path, int mode, struct nfsfh **nfsfh);
/*
* Async create()
*
* Same as nfs_creat_async but allows passing flags:
* O_APPEND
* O_SYNC
* O_EXCL
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is a struct *nfsfh;
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_create_async(struct nfs_context *nfs, const char *path, int flags, int mode, nfs_cb cb, void *private_data);
/*
* Sync create()
* Function returns
* 0 : Success
* -errno : An error occured.
*/
EXTERN int nfs_create(struct nfs_context *nfs, const char *path, int flags, int mode, struct nfsfh **nfsfh);
/*
* MKNOD()
*/
/*
* Async mknod()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev, nfs_cb cb, void *private_data);
/*
* Sync mknod()
* Function returns
* 0 : Success
* -errno : An error occured.
*/
EXTERN int nfs_mknod(struct nfs_context *nfs, const char *path, int mode, int dev);
/*
* UNLINK()
*/
/*
* Async unlink()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is NULL
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
/*
* Sync unlink()
* Function returns
* 0 : Success
* -errno : An error occured.
*/
EXTERN int nfs_unlink(struct nfs_context *nfs, const char *path);
/*
* OPENDIR()
*/
struct nfsdir;
/*
* Async opendir()
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When struct nfsdir * is returned, this resource is closed/freed by calling nfs_closedir()
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is struct nfsdir *
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
/*
* Sync opendir()
* Function returns
* 0 : Success
* -errno : An error occured.
*/
EXTERN int nfs_opendir(struct nfs_context *nfs, const char *path, struct nfsdir **nfsdir);
/*
* READDIR()
*/
struct nfsdirent {
struct nfsdirent *next;
char *name;
uint64_t inode;
/* Some extra fields we get for free through the READDIRPLUS3 call.
You need libnfs-raw-nfs.h for type/mode constants */
uint32_t type; /* NF3REG, NF3DIR, NF3BLK, ... */
uint32_t mode;
uint64_t size;
struct timeval atime;
struct timeval mtime;
struct timeval ctime;
uint32_t uid;
uint32_t gid;
uint32_t nlink;
};
/*
* nfs_readdir() never blocks, so no special sync/async versions are available
*/
EXTERN struct nfsdirent *nfs_readdir(struct nfs_context *nfs, struct nfsdir *nfsdir);
/*
* CLOSEDIR()
*/
/*
* nfs_closedir() never blocks, so no special sync/async versions are available
*/
EXTERN void nfs_closedir(struct nfs_context *nfs, struct nfsdir *nfsdir);
/*
* CHDIR()
*/
/*
* Async chdir(<path>)
*
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is NULL;
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_chdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
/*
* Sync chdir(<path>)
* Function returns
* 0 : The operation was successfull.
* -errno : The command failed.
*/
EXTERN int nfs_chdir(struct nfs_context *nfs, const char *path);
/*
* GETCWD()
*/
/*
* nfs_getcwd() never blocks, so no special sync/async versions are available
*/
/*
* Sync getcwd()
* This function returns a pointer to the current working directory.
* This pointer is only stable until the next [f]chdir or when the
* context is destroyed.
*
* Function returns
* 0 : The operation was successfull and *cwd is filled in.
* -errno : The command failed.
*/
EXTERN void nfs_getcwd(struct nfs_context *nfs, const char **cwd);
/*
* STATVFS()
*/
/*
* Async statvfs(<dirname>)
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is struct statvfs *
* -errno : An error occured.
* data is the error string.
*/
struct statvfs;
EXTERN int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
/*
* Sync statvfs(<dirname>)
* Function returns
* 0 : The operation was successfull.
* -errno : The command failed.
*/
EXTERN int nfs_statvfs(struct nfs_context *nfs, const char *path, struct statvfs *svfs);
/*
* READLINK()
*/
/*
* Async readlink(<name>)
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is a char *
* data is only valid during the callback and is automatically freed when the callback returns.
* -errno : An error occured.
* data is the error string.
*/
struct statvfs;
EXTERN int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
/*
* Sync readlink(<name>)
* Function returns
* 0 : The operation was successfull.
* -errno : The command failed.
*/
EXTERN int nfs_readlink(struct nfs_context *nfs, const char *path, char *buf, int bufsize);
/*
* CHMOD()
*/
/*
* Async chmod(<name>)
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is NULL
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data);
/*
* Sync chmod(<name>)
* Function returns
* 0 : The operation was successfull.
* -errno : The command failed.
*/
EXTERN int nfs_chmod(struct nfs_context *nfs, const char *path, int mode);
/*
* FCHMOD()
*/
/*
* Async fchmod(<handle>)
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is NULL
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data);
/*
* Sync fchmod(<handle>)
* Function returns
* 0 : The operation was successfull.
* -errno : The command failed.
*/
EXTERN int nfs_fchmod(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode);
/*
* CHOWN()
*/
/*
* Async chown(<name>)
* Function returns
* 0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
* <0 : An error occured when trying to set up the operation. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* 0 : Success.
* data is NULL
* -errno : An error occured.
* data is the error string.
*/
EXTERN int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data);
/*
* Sync chown(<name>)