{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
ssize_t nwritten;
+ uint8_t buf[AFP_INFO_SIZE];
+ size_t to_write;
+ size_t to_copy;
+ int cmp;
- if (n != AFP_INFO_SIZE || offset != 0) {
- DBG_ERR("unexpected offset=%jd or size=%jd\n",
- (intmax_t)offset, (intmax_t)n);
+ if (fio == NULL) {
+ DBG_ERR("Failed to fetch fsp extension");
return -1;
}
- if (fio == NULL) {
- DBG_ERR("Failed to fetch fsp extension");
+ if (n < 3) {
+ errno = EINVAL;
return -1;
}
+ if (offset != 0 && n < 60) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ cmp = memcmp(data, "AFP", 3);
+ if (cmp != 0) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (n <= AFP_OFF_FinderInfo) {
+ /*
+ * Nothing to do here really, just return
+ */
+ return n;
+ }
+
+ offset = 0;
+
+ to_copy = n;
+ if (to_copy > AFP_INFO_SIZE) {
+ to_copy = AFP_INFO_SIZE;
+ }
+ memcpy(buf, data, to_copy);
+
+ to_write = n;
+ if (to_write != AFP_INFO_SIZE) {
+ to_write = AFP_INFO_SIZE;
+ }
+
switch (fio->config->meta) {
case FRUIT_META_STREAM:
- nwritten = fruit_pwrite_meta_stream(handle, fsp, data,
- n, offset);
+ nwritten = fruit_pwrite_meta_stream(handle,
+ fsp,
+ buf,
+ to_write,
+ offset);
break;
case FRUIT_META_NETATALK:
- nwritten = fruit_pwrite_meta_netatalk(handle, fsp, data,
- n, offset);
+ nwritten = fruit_pwrite_meta_netatalk(handle,
+ fsp,
+ buf,
+ to_write,
+ offset);
break;
default:
return -1;
}
- return nwritten;
+ if (nwritten != to_write) {
+ return -1;
+ }
+
+ /*
+ * Return the requested amount, verified against macOS SMB server
+ */
+ return n;
}
static ssize_t fruit_pwrite_rsrc_stream(vfs_handle_struct *handle,