| 150,13 → 150,12 |
|---|
| |
| void *par = NULL; |
| void *cur = ops->root_get(dev_handle); |
| void *tmp = NULL; |
| |
| if (ops->plb_get_char(next) == '/') |
| next++; /* eat slash */ |
| |
| while (ops->has_children(cur) && next <= last) { |
| void *tmp; |
| |
| /* collect the component */ |
| len = 0; |
| while ((ops->plb_get_char(next) != '/') && (next <= last)) { |
| 163,7 → 162,7 |
|---|
| if (len + 1 == NAME_MAX) { |
| /* comopnent length overflow */ |
| ipc_answer_0(rid, ENAMETOOLONG); |
| return; |
| goto out; |
| } |
| component[len++] = ops->plb_get_char(next); |
| next++; /* process next character */ |
| 181,7 → 180,7 |
|---|
| if (next <= last) { |
| /* there are unprocessed components */ |
| ipc_answer_0(rid, ENOENT); |
| return; |
| goto out; |
| } |
| /* miss in the last component */ |
| if (lflag & (L_CREATE | L_LINK)) { |
| 188,7 → 187,7 |
|---|
| /* request to create a new link */ |
| if (!ops->is_directory(cur)) { |
| ipc_answer_0(rid, ENOTDIR); |
| return; |
| goto out; |
| } |
| void *nodep; |
| if (lflag & L_CREATE) |
| 207,11 → 206,12 |
|---|
| ops->index_get(nodep), |
| ops->size_get(nodep), |
| ops->lnkcnt_get(nodep)); |
| ops->node_put(nodep); |
| } |
| } else { |
| ipc_answer_0(rid, ENOSPC); |
| } |
| return; |
| goto out; |
| } else if (lflag & L_PARENT) { |
| /* return parent */ |
| ipc_answer_5(rid, EOK, fs_handle, dev_handle, |
| 219,12 → 219,16 |
|---|
| ops->lnkcnt_get(cur)); |
| } |
| ipc_answer_0(rid, ENOENT); |
| return; |
| goto out; |
| } |
| |
| if (par) |
| ops->node_put(par); |
| |
| /* descend one level */ |
| par = cur; |
| cur = tmp; |
| tmp = NULL; |
| } |
| |
| /* handle miss: excessive components */ |
| 232,7 → 236,7 |
|---|
| if (lflag & (L_CREATE | L_LINK)) { |
| if (!ops->is_directory(cur)) { |
| ipc_answer_0(rid, ENOTDIR); |
| return; |
| goto out; |
| } |
| |
| /* collect next component */ |
| 241,12 → 245,12 |
|---|
| if (ops->plb_get_char(next) == '/') { |
| /* more than one component */ |
| ipc_answer_0(rid, ENOENT); |
| return; |
| goto out; |
| } |
| if (len + 1 == NAME_MAX) { |
| /* component length overflow */ |
| ipc_answer_0(rid, ENAMETOOLONG); |
| return; |
| goto out; |
| } |
| component[len++] = ops->plb_get_char(next); |
| next++; /* process next character */ |
| 271,22 → 275,25 |
|---|
| ops->index_get(nodep), |
| ops->size_get(nodep), |
| ops->lnkcnt_get(nodep)); |
| ops->node_put(nodep); |
| } |
| } else { |
| ipc_answer_0(rid, ENOSPC); |
| } |
| return; |
| goto out; |
| } |
| ipc_answer_0(rid, ENOENT); |
| return; |
| goto out; |
| } |
| |
| /* handle hit */ |
| if (lflag & L_PARENT) { |
| ops->node_put(cur); |
| cur = par; |
| par = NULL; |
| if (!cur) { |
| ipc_answer_0(rid, ENOENT); |
| return; |
| goto out; |
| } |
| } |
| if (lflag & L_UNLINK) { |
| 294,24 → 301,32 |
|---|
| int res = ops->unlink(par, cur); |
| ipc_answer_5(rid, (ipcarg_t)res, fs_handle, dev_handle, |
| ops->index_get(cur), ops->size_get(cur), old_lnkcnt); |
| return; |
| goto out; |
| } |
| if (((lflag & (L_CREATE | L_EXCLUSIVE)) == (L_CREATE | L_EXCLUSIVE)) || |
| (lflag & L_LINK)) { |
| ipc_answer_0(rid, EEXIST); |
| return; |
| goto out; |
| } |
| if ((lflag & L_FILE) && (ops->is_directory(cur))) { |
| ipc_answer_0(rid, EISDIR); |
| return; |
| goto out; |
| } |
| if ((lflag & L_DIRECTORY) && (ops->is_file(cur))) { |
| ipc_answer_0(rid, ENOTDIR); |
| return; |
| goto out; |
| } |
| |
| ipc_answer_5(rid, EOK, fs_handle, dev_handle, ops->index_get(cur), |
| ops->size_get(cur), ops->lnkcnt_get(cur)); |
| |
| out: |
| if (par) |
| ops->node_put(par); |
| if (cur) |
| ops->node_put(cur); |
| if (tmp) |
| ops->node_put(tmp); |
| } |
| |
| /** @} |