| 689,8 → 689,8 |
|---|
| */ |
| int status; |
| unsigned nclsts; |
| fat_cluster_t mcl, lcl; |
| |
| fat_cluster_t mcl, lcl; |
| |
| nclsts = (ROUND_UP(pos + bytes, bps * spc) - boundary) / |
| bps * spc; |
| /* create an independent chain of nclsts clusters in all FATs */ |
| 705,8 → 705,7 |
|---|
| } |
| /* zero fill any gaps */ |
| fat_fill_gap(bs, nodep, mcl, pos); |
| b = _fat_block_get(bs, dev_handle, lcl, |
| (pos / bps) % spc); |
| b = _fat_block_get(bs, dev_handle, lcl, (pos / bps) % spc); |
| (void) ipc_data_write_finalize(callid, b->data + pos % bps, |
| bytes); |
| b->dirty = true; /* need to sync block */ |
| 726,7 → 725,35 |
|---|
| |
| void fat_truncate(ipc_callid_t rid, ipc_call_t *request) |
| { |
| ipc_answer_0(rid, ENOTSUP); |
| dev_handle_t dev_handle = (dev_handle_t)IPC_GET_ARG1(*request); |
| fs_index_t index = (fs_index_t)IPC_GET_ARG2(*request); |
| size_t size = (off_t)IPC_GET_ARG3(*request); |
| fat_node_t *nodep = (fat_node_t *)fat_node_get(dev_handle, index); |
| int rc; |
| |
| if (!nodep) { |
| ipc_answer_0(rid, ENOENT); |
| return; |
| } |
| |
| if (nodep->size == size) { |
| rc = EOK; |
| } else if (nodep->size < size) { |
| /* |
| * TODO: the standard says we have the freedom to grow the file. |
| * For now, we simply return an error. |
| */ |
| rc = EINVAL; |
| } else { |
| /* |
| * The file is to be shrunk. |
| */ |
| rc = ENOTSUP; /* XXX */ |
| } |
| fat_node_put(nodep); |
| ipc_answer_0(rid, rc); |
| return; |
| |
| } |
| |
| /** |