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| author | Jean-Pierre André <jpandre@users.noreply.github.com> | 2019-03-11 18:35:23 +0100 |
|---|---|---|
| committer | Nikolaus Rath <Nikolaus@rath.org> | 2019-03-11 17:35:23 +0000 |
| commit | a1bff7dbe3ad8950d8cf1b5640aa7a7b2e89211d (patch) | |
| tree | 996c19b8cc1a98b987c762fc6d931af884a84a2d /include | |
| parent | b1b06d1920f7163a54e4b30e120cb52fda0cb9f9 (diff) | |
| download | libfuse-a1bff7dbe3ad8950d8cf1b5640aa7a7b2e89211d.tar.gz | |
Defined the (*ioctl)() commands as unsigned int (#381)
Instead of the Posix ioctl(2) command, Linux uses its own variant of ioctl()
in which the commands are requested as "unsigned long" and truncated to
32 bits by the fuse kernel module. Transmitting the commands to user space
file systems as "unsigned int" is a workaround for processing ioctl()
commands which do not fit into a signed int.
Diffstat (limited to 'include')
| -rw-r--r-- | include/fuse.h | 10 | ||||
| -rw-r--r-- | include/fuse_lowlevel.h | 7 |
2 files changed, 12 insertions, 5 deletions
diff --git a/include/fuse.h b/include/fuse.h index 4f7131b..3e8aa20 100644 --- a/include/fuse.h +++ b/include/fuse.h @@ -677,8 +677,11 @@ struct fuse_operations { * * If flags has FUSE_IOCTL_DIR then the fuse_file_info refers to a * directory file handle. + * + * Note : the unsigned long request submitted by the application + * is truncated to 32 bits. */ - int (*ioctl) (const char *, int cmd, void *arg, + int (*ioctl) (const char *, unsigned int cmd, void *arg, struct fuse_file_info *, unsigned int flags, void *data); /** @@ -1182,8 +1185,9 @@ int fuse_fs_removexattr(struct fuse_fs *fs, const char *path, const char *name); int fuse_fs_bmap(struct fuse_fs *fs, const char *path, size_t blocksize, uint64_t *idx); -int fuse_fs_ioctl(struct fuse_fs *fs, const char *path, int cmd, void *arg, - struct fuse_file_info *fi, unsigned int flags, void *data); +int fuse_fs_ioctl(struct fuse_fs *fs, const char *path, unsigned int cmd, + void *arg, struct fuse_file_info *fi, unsigned int flags, + void *data); int fuse_fs_poll(struct fuse_fs *fs, const char *path, struct fuse_file_info *fi, struct fuse_pollhandle *ph, unsigned *reventsp); diff --git a/include/fuse_lowlevel.h b/include/fuse_lowlevel.h index 68fd521..87c362a 100644 --- a/include/fuse_lowlevel.h +++ b/include/fuse_lowlevel.h @@ -1010,9 +1010,12 @@ struct fuse_lowlevel_ops { * @param in_buf data fetched from the caller * @param in_bufsz number of fetched bytes * @param out_bufsz maximum size of output data + * + * Note : the unsigned long request submitted by the application + * is truncated to 32 bits. */ - void (*ioctl) (fuse_req_t req, fuse_ino_t ino, int cmd, void *arg, - struct fuse_file_info *fi, unsigned flags, + void (*ioctl) (fuse_req_t req, fuse_ino_t ino, unsigned int cmd, + void *arg, struct fuse_file_info *fi, unsigned flags, const void *in_buf, size_t in_bufsz, size_t out_bufsz); /** |