diff options
Diffstat (limited to 'example/fusexmp_fh.c')
-rw-r--r-- | example/fusexmp_fh.c | 468 |
1 files changed, 234 insertions, 234 deletions
diff --git a/example/fusexmp_fh.c b/example/fusexmp_fh.c index 6565cf9..616c263 100644 --- a/example/fusexmp_fh.c +++ b/example/fusexmp_fh.c @@ -1,11 +1,11 @@ /* - FUSE: Filesystem in Userspace - Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu> + FUSE: Filesystem in Userspace + Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu> - This program can be distributed under the terms of the GNU GPL. - See the file COPYING. + This program can be distributed under the terms of the GNU GPL. + See the file COPYING. - gcc -Wall `pkg-config fuse --cflags --libs` -lulockmgr fusexmp_fh.c -o fusexmp_fh + gcc -Wall `pkg-config fuse --cflags --libs` -lulockmgr fusexmp_fh.c -o fusexmp_fh */ #define FUSE_USE_VERSION 26 @@ -31,430 +31,430 @@ static int xmp_getattr(const char *path, struct stat *stbuf) { - int res; + int res; - res = lstat(path, stbuf); - if (res == -1) - return -errno; + res = lstat(path, stbuf); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_fgetattr(const char *path, struct stat *stbuf, - struct fuse_file_info *fi) + struct fuse_file_info *fi) { - int res; + int res; - (void) path; + (void) path; - res = fstat(fi->fh, stbuf); - if (res == -1) - return -errno; + res = fstat(fi->fh, stbuf); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_access(const char *path, int mask) { - int res; + int res; - res = access(path, mask); - if (res == -1) - return -errno; + res = access(path, mask); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_readlink(const char *path, char *buf, size_t size) { - int res; + int res; - res = readlink(path, buf, size - 1); - if (res == -1) - return -errno; + res = readlink(path, buf, size - 1); + if (res == -1) + return -errno; - buf[res] = '\0'; - return 0; + buf[res] = '\0'; + return 0; } static int xmp_opendir(const char *path, struct fuse_file_info *fi) { - DIR *dp = opendir(path); - if (dp == NULL) - return -errno; + DIR *dp = opendir(path); + if (dp == NULL) + return -errno; - fi->fh = (unsigned long) dp; - return 0; + fi->fh = (unsigned long) dp; + return 0; } static inline DIR *get_dirp(struct fuse_file_info *fi) { - return (DIR *) (uintptr_t) fi->fh; + return (DIR *) (uintptr_t) fi->fh; } static int xmp_readdir(const char *path, void *buf, fuse_fill_dir_t filler, - off_t offset, struct fuse_file_info *fi) + off_t offset, struct fuse_file_info *fi) { - DIR *dp = get_dirp(fi); - struct dirent *de; + DIR *dp = get_dirp(fi); + struct dirent *de; - (void) path; - seekdir(dp, offset); - while ((de = readdir(dp)) != NULL) { - struct stat st; - memset(&st, 0, sizeof(st)); - st.st_ino = de->d_ino; - st.st_mode = de->d_type << 12; - if (filler(buf, de->d_name, &st, telldir(dp))) - break; - } + (void) path; + seekdir(dp, offset); + while ((de = readdir(dp)) != NULL) { + struct stat st; + memset(&st, 0, sizeof(st)); + st.st_ino = de->d_ino; + st.st_mode = de->d_type << 12; + if (filler(buf, de->d_name, &st, telldir(dp))) + break; + } - return 0; + return 0; } static int xmp_releasedir(const char *path, struct fuse_file_info *fi) { - DIR *dp = get_dirp(fi); - (void) path; - closedir(dp); - return 0; + DIR *dp = get_dirp(fi); + (void) path; + closedir(dp); + return 0; } static int xmp_mknod(const char *path, mode_t mode, dev_t rdev) { - int res; + int res; - if (S_ISFIFO(mode)) - res = mkfifo(path, mode); - else - res = mknod(path, mode, rdev); - if (res == -1) - return -errno; + if (S_ISFIFO(mode)) + res = mkfifo(path, mode); + else + res = mknod(path, mode, rdev); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_mkdir(const char *path, mode_t mode) { - int res; + int res; - res = mkdir(path, mode); - if (res == -1) - return -errno; + res = mkdir(path, mode); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_unlink(const char *path) { - int res; + int res; - res = unlink(path); - if (res == -1) - return -errno; + res = unlink(path); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_rmdir(const char *path) { - int res; + int res; - res = rmdir(path); - if (res == -1) - return -errno; + res = rmdir(path); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_symlink(const char *from, const char *to) { - int res; + int res; - res = symlink(from, to); - if (res == -1) - return -errno; + res = symlink(from, to); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_rename(const char *from, const char *to) { - int res; + int res; - res = rename(from, to); - if (res == -1) - return -errno; + res = rename(from, to); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_link(const char *from, const char *to) { - int res; + int res; - res = link(from, to); - if (res == -1) - return -errno; + res = link(from, to); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_chmod(const char *path, mode_t mode) { - int res; + int res; - res = chmod(path, mode); - if (res == -1) - return -errno; + res = chmod(path, mode); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_chown(const char *path, uid_t uid, gid_t gid) { - int res; + int res; - res = lchown(path, uid, gid); - if (res == -1) - return -errno; + res = lchown(path, uid, gid); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_truncate(const char *path, off_t size) { - int res; + int res; - res = truncate(path, size); - if (res == -1) - return -errno; + res = truncate(path, size); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_ftruncate(const char *path, off_t size, - struct fuse_file_info *fi) + struct fuse_file_info *fi) { - int res; + int res; - (void) path; + (void) path; - res = ftruncate(fi->fh, size); - if (res == -1) - return -errno; + res = ftruncate(fi->fh, size); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_utimens(const char *path, const struct timespec ts[2]) { - int res; - struct timeval tv[2]; + int res; + struct timeval tv[2]; - tv[0].tv_sec = ts[0].tv_sec; - tv[0].tv_usec = ts[0].tv_nsec / 1000; - tv[1].tv_sec = ts[1].tv_sec; - tv[1].tv_usec = ts[1].tv_nsec / 1000; + tv[0].tv_sec = ts[0].tv_sec; + tv[0].tv_usec = ts[0].tv_nsec / 1000; + tv[1].tv_sec = ts[1].tv_sec; + tv[1].tv_usec = ts[1].tv_nsec / 1000; - res = utimes(path, tv); - if (res == -1) - return -errno; + res = utimes(path, tv); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_create(const char *path, mode_t mode, struct fuse_file_info *fi) { - int fd; + int fd; - fd = open(path, fi->flags, mode); - if (fd == -1) - return -errno; + fd = open(path, fi->flags, mode); + if (fd == -1) + return -errno; - fi->fh = fd; - return 0; + fi->fh = fd; + return 0; } static int xmp_open(const char *path, struct fuse_file_info *fi) { - int fd; + int fd; - fd = open(path, fi->flags); - if (fd == -1) - return -errno; + fd = open(path, fi->flags); + if (fd == -1) + return -errno; - fi->fh = fd; - return 0; + fi->fh = fd; + return 0; } static int xmp_read(const char *path, char *buf, size_t size, off_t offset, - struct fuse_file_info *fi) + struct fuse_file_info *fi) { - int res; + int res; - (void) path; - res = pread(fi->fh, buf, size, offset); - if (res == -1) - res = -errno; + (void) path; + res = pread(fi->fh, buf, size, offset); + if (res == -1) + res = -errno; - return res; + return res; } static int xmp_write(const char *path, const char *buf, size_t size, - off_t offset, struct fuse_file_info *fi) + off_t offset, struct fuse_file_info *fi) { - int res; + int res; - (void) path; - res = pwrite(fi->fh, buf, size, offset); - if (res == -1) - res = -errno; + (void) path; + res = pwrite(fi->fh, buf, size, offset); + if (res == -1) + res = -errno; - return res; + return res; } static int xmp_statfs(const char *path, struct statvfs *stbuf) { - int res; + int res; - res = statvfs(path, stbuf); - if (res == -1) - return -errno; + res = statvfs(path, stbuf); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_flush(const char *path, struct fuse_file_info *fi) { - int res; + int res; - (void) path; - /* This is called from every close on an open file, so call the - close on the underlying filesystem. But since flush may be - called multiple times for an open file, this must not really - close the file. This is important if used on a network - filesystem like NFS which flush the data/metadata on close() */ - res = close(dup(fi->fh)); - if (res == -1) - return -errno; + (void) path; + /* This is called from every close on an open file, so call the + close on the underlying filesystem. But since flush may be + called multiple times for an open file, this must not really + close the file. This is important if used on a network + filesystem like NFS which flush the data/metadata on close() */ + res = close(dup(fi->fh)); + if (res == -1) + return -errno; - return 0; + return 0; } static int xmp_release(const char *path, struct fuse_file_info *fi) { - (void) path; - close(fi->fh); + (void) path; + close(fi->fh); - return 0; + return 0; } static int xmp_fsync(const char *path, int isdatasync, - struct fuse_file_info *fi) + struct fuse_file_info *fi) { - int res; - (void) path; + int res; + (void) path; #ifndef HAVE_FDATASYNC - (void) isdatasync; + (void) isdatasync; #else - if (isdatasync) - res = fdatasync(fi->fh); - else + if (isdatasync) + res = fdatasync(fi->fh); + else #endif - res = fsync(fi->fh); - if (res == -1) - return -errno; + res = fsync(fi->fh); + if (res == -1) + return -errno; - return 0; + return 0; } #ifdef HAVE_SETXATTR /* xattr operations are optional and can safely be left unimplemented */ static int xmp_setxattr(const char *path, const char *name, const char *value, - size_t size, int flags) + size_t size, int flags) { - int res = lsetxattr(path, name, value, size, flags); - if (res == -1) - return -errno; - return 0; + int res = lsetxattr(path, name, value, size, flags); + if (res == -1) + return -errno; + return 0; } static int xmp_getxattr(const char *path, const char *name, char *value, - size_t size) + size_t size) { - int res = lgetxattr(path, name, value, size); - if (res == -1) - return -errno; - return res; + int res = lgetxattr(path, name, value, size); + if (res == -1) + return -errno; + return res; } static int xmp_listxattr(const char *path, char *list, size_t size) { - int res = llistxattr(path, list, size); - if (res == -1) - return -errno; - return res; + int res = llistxattr(path, list, size); + if (res == -1) + return -errno; + return res; } static int xmp_removexattr(const char *path, const char *name) { - int res = lremovexattr(path, name); - if (res == -1) - return -errno; - return 0; + int res = lremovexattr(path, name); + if (res == -1) + return -errno; + return 0; } #endif /* HAVE_SETXATTR */ static int xmp_lock(const char *path, struct fuse_file_info *fi, int cmd, - struct flock *lock) + struct flock *lock) { - (void) path; + (void) path; - return ulockmgr_op(fi->fh, cmd, lock, &fi->lock_owner, - sizeof(fi->lock_owner)); + return ulockmgr_op(fi->fh, cmd, lock, &fi->lock_owner, + sizeof(fi->lock_owner)); } static struct fuse_operations xmp_oper = { - .getattr = xmp_getattr, - .fgetattr = xmp_fgetattr, - .access = xmp_access, - .readlink = xmp_readlink, - .opendir = xmp_opendir, - .readdir = xmp_readdir, - .releasedir = xmp_releasedir, - .mknod = xmp_mknod, - .mkdir = xmp_mkdir, - .symlink = xmp_symlink, - .unlink = xmp_unlink, - .rmdir = xmp_rmdir, - .rename = xmp_rename, - .link = xmp_link, - .chmod = xmp_chmod, - .chown = xmp_chown, - .truncate = xmp_truncate, - .ftruncate = xmp_ftruncate, - .utimens = xmp_utimens, - .create = xmp_create, - .open = xmp_open, - .read = xmp_read, - .write = xmp_write, - .statfs = xmp_statfs, - .flush = xmp_flush, - .release = xmp_release, - .fsync = xmp_fsync, + .getattr = xmp_getattr, + .fgetattr = xmp_fgetattr, + .access = xmp_access, + .readlink = xmp_readlink, + .opendir = xmp_opendir, + .readdir = xmp_readdir, + .releasedir = xmp_releasedir, + .mknod = xmp_mknod, + .mkdir = xmp_mkdir, + .symlink = xmp_symlink, + .unlink = xmp_unlink, + .rmdir = xmp_rmdir, + .rename = xmp_rename, + .link = xmp_link, + .chmod = xmp_chmod, + .chown = xmp_chown, + .truncate = xmp_truncate, + .ftruncate = xmp_ftruncate, + .utimens = xmp_utimens, + .create = xmp_create, + .open = xmp_open, + .read = xmp_read, + .write = xmp_write, + .statfs = xmp_statfs, + .flush = xmp_flush, + .release = xmp_release, + .fsync = xmp_fsync, #ifdef HAVE_SETXATTR - .setxattr = xmp_setxattr, - .getxattr = xmp_getxattr, - .listxattr = xmp_listxattr, - .removexattr= xmp_removexattr, + .setxattr = xmp_setxattr, + .getxattr = xmp_getxattr, + .listxattr = xmp_listxattr, + .removexattr = xmp_removexattr, #endif - .lock = xmp_lock, + .lock = xmp_lock, }; int main(int argc, char *argv[]) { - umask(0); - return fuse_main(argc, argv, &xmp_oper, NULL); + umask(0); + return fuse_main(argc, argv, &xmp_oper, NULL); } |