diff options
| -rw-r--r-- | sdcard/sdcard.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/sdcard/sdcard.c b/sdcard/sdcard.c index fd003a7..bd00311 100644 --- a/sdcard/sdcard.c +++ b/sdcard/sdcard.c @@ -575,17 +575,50 @@ void handle_fuse_request(struct fuse *fuse, struct fuse_in_header *hdr, void *da struct fuse_attr_out out; char *path, buffer[PATH_BUFFER_SIZE]; int res = 0; + struct timespec times[2]; TRACE("SETATTR fh=%llx id=%llx valid=%x\n", req->fh, hdr->nodeid, req->valid); - /* XXX: incomplete implementation -- truncate only. chmod/chown - * should NEVER be implemented. */ + /* XXX: incomplete implementation on purpose. chmod/chown + * should NEVER be implemented.*/ path = node_get_path(node, buffer, 0); if (req->valid & FATTR_SIZE) res = truncate(path, req->size); + if (res) + goto getout; + + /* Handle changing atime and mtime. If FATTR_ATIME_and FATTR_ATIME_NOW + * are both set, then set it to the current time. Else, set it to the + * time specified in the request. Same goes for mtime. Use utimensat(2) + * as it allows ATIME and MTIME to be changed independently, and has + * nanosecond resolution which fuse also has. + */ + if (req->valid & (FATTR_ATIME | FATTR_MTIME)) { + times[0].tv_nsec = UTIME_OMIT; + times[1].tv_nsec = UTIME_OMIT; + if (req->valid & FATTR_ATIME) { + if (req->valid & FATTR_ATIME_NOW) { + times[0].tv_nsec = UTIME_NOW; + } else { + times[0].tv_sec = req->atime; + times[0].tv_nsec = req->atimensec; + } + } + if (req->valid & FATTR_MTIME) { + if (req->valid & FATTR_MTIME_NOW) { + times[1].tv_nsec = UTIME_NOW; + } else { + times[1].tv_sec = req->mtime; + times[1].tv_nsec = req->mtimensec; + } + } + TRACE("Calling utimensat on %s with atime %ld, mtime=%ld\n", path, times[0].tv_sec, times[1].tv_sec); + res = utimensat(-1, path, times, 0); + } + getout: memset(&out, 0, sizeof(out)); node_get_attr(node, &out.attr); out.attr_valid = 10; |