/*
fuse_xattrs - Add xattrs support using sidecar files
- Copyright (C) 2016 Felipe Barriga Richards <felipe {at} felipebarriga.cl>
+ Copyright (C) 2016-2017 Felipe Barriga Richards <felipe {at} felipebarriga.cl>
Based on passthrough.c (libfuse example)
/* For pread()/pwrite()/utimensat() */
#define _XOPEN_SOURCE 700
-#include <fuse.h>
+#ifdef __APPLE__
+ #include <osxfuse/fuse.h>
+#else
+ #include <fuse.h>
+#endif
+
#include <stdio.h>
#include <string.h>
+#include <stdlib.h>
#include <unistd.h>
#include <dirent.h>
#include <errno.h>
+#include "xattrs_config.h"
+#include "utils.h"
+#include "stringmem.h"
+
int xmp_getattr(const char *path, struct stat *stbuf) {
int res;
- res = lstat(path, stbuf);
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
+
+ char *_path = prepend_source_directory(path);
+ res = lstat(_path, stbuf);
+ strfree(_path);
+
if (res == -1)
return -errno;
int xmp_access(const char *path, int mask) {
int res;
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
+
+ char *_path = prepend_source_directory(path);
+ res = access(_path, mask);
+ strfree(_path);
- res = access(path, mask);
if (res == -1)
return -errno;
int xmp_readlink(const char *path, char *buf, size_t size) {
int res;
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
+
+ char *_path = prepend_source_directory(path);
+ res = readlink(_path, buf, size - 1);
+ strfree(_path);
- res = readlink(path, buf, size - 1);
if (res == -1)
return -errno;
struct dirent *de;
(void) offset;
- (void) fi;
- dp = opendir(path);
+ if (fi != NULL && fi->fh != 0) {
+ dp = fdopendir(fi->fh);
+ } else {
+ char *_path = prepend_source_directory(path);
+ dp = opendir(_path);
+ strfree(_path);
+ }
+
if (dp == NULL)
return -errno;
while ((de = readdir(dp)) != NULL) {
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(de->d_name) == 1) {
+ continue;
+ }
+
struct stat st;
memset(&st, 0, sizeof(st));
st.st_ino = de->d_ino;
int xmp_mknod(const char *path, mode_t mode, dev_t rdev) {
int res;
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
+
+ char *_path = prepend_source_directory(path);
/* On Linux this could just be 'mknod(path, mode, rdev)' but this
is more portable */
if (S_ISREG(mode)) {
- res = open(path, O_CREAT | O_EXCL | O_WRONLY, mode);
+ res = open(_path, O_CREAT | O_EXCL | O_WRONLY, mode);
if (res >= 0)
res = close(res);
} else if (S_ISFIFO(mode))
- res = mkfifo(path, mode);
+ res = mkfifo(_path, mode);
else
- res = mknod(path, mode, rdev);
+ res = mknod(_path, mode, rdev);
+
+ strfree(_path);
if (res == -1)
return -errno;
int xmp_mkdir(const char *path, mode_t mode) {
int res;
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
+
+ char *_path = prepend_source_directory(path);
+ res = mkdir(_path, mode);
+ strfree(_path);
- res = mkdir(path, mode);
if (res == -1)
return -errno;
int xmp_unlink(const char *path) {
int res;
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
- res = unlink(path);
- if (res == -1)
+ char *_path = prepend_source_directory(path);
+ res = unlink(_path);
+
+ if (res == -1) {
+ strfree(_path);
return -errno;
+ }
+
+ char *sidecar_path = get_sidecar_path(_path);
+ if (is_regular_file(sidecar_path)) {
+ if (unlink(sidecar_path) == -1) {
+ error_print("Error removing sidecar file: %s\n", sidecar_path);
+ }
+ }
+ strfree(sidecar_path);
+ strfree(_path);
return 0;
}
+// FIXME: remove sidecar
int xmp_rmdir(const char *path) {
int res;
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
+
+ char *_path = prepend_source_directory(path);
+ res = rmdir(_path);
+ strfree(_path);
- res = rmdir(path);
if (res == -1)
return -errno;
int xmp_symlink(const char *from, const char *to) {
int res;
+ if (xattrs_config.show_sidecar == 0) {
+ if (filename_is_sidecar(from) == 1 || filename_is_sidecar(to)) {
+ return -ENOENT;
+ }
+ }
+
+ char *_to = prepend_source_directory(to);
+ res = symlink(from, _to);
+ strfree(_to);
- res = symlink(from, to);
if (res == -1)
return -errno;
int xmp_rename(const char *from, const char *to) {
int res;
+ if (xattrs_config.show_sidecar == 0) {
+ if (filename_is_sidecar(from) == 1 || filename_is_sidecar(to)) {
+ return -ENOENT;
+ }
+ }
- res = rename(from, to);
- if (res == -1)
+ char *_from = prepend_source_directory(from);
+ char *_to = prepend_source_directory(to);
+ res = rename(_from, _to);
+
+ if (res == -1) {
+ strfree(_from);
+ strfree(_to);
return -errno;
+ }
+
+ char *from_sidecar_path = get_sidecar_path(_from);
+ char *to_sidecar_path = get_sidecar_path(_to);
+
+ // FIXME: Remove to_sidecar_path if it exists ?
+ if (is_regular_file(from_sidecar_path)) {
+ if (rename(from_sidecar_path, to_sidecar_path) == -1) {
+ error_print("Error renaming sidecar. from: %s to: %s\n", from_sidecar_path, to_sidecar_path);
+ }
+ }
+ strfree(from_sidecar_path);
+ strfree(to_sidecar_path);
+
+ strfree(_from);
+ strfree(_to);
return 0;
}
+// TODO: handle sidecar file ?
int xmp_link(const char *from, const char *to) {
int res;
+ if (xattrs_config.show_sidecar == 0) {
+ if (filename_is_sidecar(from) == 1 || filename_is_sidecar(to)) {
+ return -ENOENT;
+ }
+ }
+
+ char *_from = prepend_source_directory(from);
+ char *_to = prepend_source_directory(to);
+ res = link(_from, _to);
+ strfree(_from);
+ strfree(_to);
- res = link(from, to);
if (res == -1)
return -errno;
int xmp_chmod(const char *path, mode_t mode) {
int res;
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
+
+ char *_path = prepend_source_directory(path);
+ res = chmod(_path, mode);
+ strfree(_path);
- res = chmod(path, mode);
if (res == -1)
return -errno;
int xmp_chown(const char *path, uid_t uid, gid_t gid) {
int res;
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
+
+ char *_path = prepend_source_directory(path);
+ res = lchown(_path, uid, gid);
+ strfree(_path);
- res = lchown(path, uid, gid);
if (res == -1)
return -errno;
int xmp_truncate(const char *path, off_t size) {
int res;
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
+
+ char *_path = prepend_source_directory(path);
+ res = truncate(_path, size);
+ strfree(_path);
- res = truncate(path, size);
if (res == -1)
return -errno;
}
#ifdef HAVE_UTIMENSAT
-int xmp_utimens(const char *path, const struct timespec ts[2],
-struct fuse_file_info *fi)
-{
- (void) fi;
+int xmp_utimens(const char *path, const struct timespec ts[2]) {
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
+
int res;
+ char *_path = prepend_source_directory(path);
/* don't use utime/utimes since they follow symlinks */
- res = utimensat(0, path, ts, AT_SYMLINK_NOFOLLOW);
+ res = utimensat(0, _path, ts, AT_SYMLINK_NOFOLLOW);
+ strfree(_path);
if (res == -1)
return -errno;
#endif
int xmp_open(const char *path, struct fuse_file_info *fi) {
- int res;
+ int fd;
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
- res = open(path, fi->flags);
- if (res == -1)
+ char *_path = prepend_source_directory(path);
+ fd = open(_path, fi->flags);
+ strfree(_path);
+
+ if (fd == -1)
return -errno;
- close(res);
+ fi->fh = fd;
return 0;
}
int xmp_read(const char *path, char *buf, size_t size, off_t offset,
- struct fuse_file_info *fi) {
- int fd;
- int res;
-
- (void) fi;
- fd = open(path, O_RDONLY);
- if (fd == -1)
- return -errno;
+ struct fuse_file_info *fi)
+{
+ (void) path;
+ if (fi == NULL || fi->fh == 0) {
+ return -1;
+ }
- res = pread(fd, buf, size, offset);
+ int res = pread(fi->fh, buf, size, offset);
if (res == -1)
res = -errno;
- close(fd);
return res;
}
int xmp_write(const char *path, const char *buf, size_t size,
- off_t offset, struct fuse_file_info *fi) {
- int fd;
- int res;
-
- (void) fi;
- fd = open(path, O_WRONLY);
- if (fd == -1)
- return -errno;
+ off_t offset, struct fuse_file_info *fi)
+{
+ (void) path;
+ if (fi == NULL || fi->fh == 0) {
+ return -1;
+ }
- res = pwrite(fd, buf, size, offset);
+ int res = pwrite(fi->fh, buf, size, offset);
if (res == -1)
res = -errno;
- close(fd);
return res;
}
int xmp_statfs(const char *path, struct statvfs *stbuf) {
int res;
+ if (xattrs_config.show_sidecar == 0 && filename_is_sidecar(path) == 1) {
+ return -ENOENT;
+ }
+
+ char *_path = prepend_source_directory(path);
+ res = statvfs(_path, stbuf);
+ strfree(_path);
- res = statvfs(path, stbuf);
if (res == -1)
return -errno;
}
int xmp_release(const char *path, struct fuse_file_info *fi) {
- /* Just a stub. This method is optional and can safely be left
- unimplemented */
-
(void) path;
- (void) fi;
- return 0;
+ return close(fi->fh);
}
int xmp_fsync(const char *path, int isdatasync,
int xmp_fallocate(const char *path, int mode,
off_t offset, off_t length, struct fuse_file_info *fi)
{
- int fd;
- int res;
-
- (void) fi;
+ (void) path;
+ if (fi == NULL || fi->fh == 0) {
+ return -1;
+ }
+ int res;
if (mode)
return -EOPNOTSUPP;
- fd = open(path, O_WRONLY);
- if (fd == -1)
- return -errno;
-
- res = -posix_fallocate(fd, offset, length);
-
- close(fd);
+ res = -posix_fallocate(fi->fh, offset, length);
return res;
}
#endif
projects / rrq / fuse_xattrs.git / blobdiff